/* ========================================
   SKOUL Landing Page - Brand Design System
   ======================================== */

/* ========================================
   CSS Variables - Design Tokens
   ======================================== */
:root {
    /* Brand Colors */
    --color-spark-orange: #FF6B35;
    --color-spark-orange-hover: #E84E1B;
    --color-explorer-blue: #0EA5E9;
    --color-explorer-blue-hover: #0284C7;
    --color-skoul-purple: #6B4EE6;
    --color-skoul-purple-light: #8B6EFF;
    --color-victory-green: #22C55E;
    --color-victory-green-light: #4ADE80;

    /* Extended Colors */
    --color-joy-pink: #F472B6;
    --color-joy-pink-light: #FB7DC6;
    --color-curious-yellow: #FACC15;
    --color-curious-yellow-light: #FDE047;
    --color-wonder-purple: #A855F7;
    --color-wonder-purple-light: #C084FC;

    /* Neutral Colors */
    --color-background-primary: #FAFAFA;
    --color-background-secondary: #F5F5F5;
    --color-text-primary: #171717;
    --color-text-secondary: #525252;
    --color-text-placeholder: #A3A3A3;
    --color-text-on-brand: #FFFFFF;
    --color-border: #D4D4D4;

    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-display: 3.5rem;
    --font-size-heading-large: 2.5rem;
    --font-size-heading-medium: 1.75rem;
    --font-size-heading-small: 1.5rem;
    --font-size-body-large: 1.125rem;
    --font-size-body: 1rem;
    --font-size-caption: 0.875rem;

    /* Spacing (8pt grid) */
    --spacing-xxs: 0.125rem;
    --spacing-xs: 0.25rem;
    --spacing-s: 0.5rem;
    --spacing-m: 0.75rem;
    --spacing-l: 1rem;
    --spacing-xl: 1.5rem;
    --spacing-xxl: 2rem;
    --spacing-xxxl: 3rem;
    --spacing-4xl: 4rem;
    --spacing-5xl: 6rem;

    /* Border Radius */
    --radius-s: 0.25rem;
    --radius-m: 0.5rem;
    --radius-l: 1rem;
    --radius-xl: 1.5rem;
    --radius-circular: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(107, 78, 230, 0.08);
    --shadow-md: 0 4px 8px rgba(107, 78, 230, 0.12);
    --shadow-lg: 0 12px 24px rgba(107, 78, 230, 0.16);

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Gradients */
    --gradient-splash: linear-gradient(180deg, #38BDF8 0%, #0EA5E9 50%, #6B4EE6 100%);
    --gradient-ocean: linear-gradient(180deg, #0EA5E9 0%, #6B4EE6 100%);
    --gradient-sunrise: linear-gradient(135deg, #FF6B35 0%, #FACC15 100%);
    --gradient-forest: linear-gradient(135deg, #22C55E 0%, #0EA5E9 100%);
    --gradient-galaxy: linear-gradient(90deg, #6B4EE6 0%, #A855F7 50%, #F472B6 100%);
}

/* ========================================
   Reset & Base Styles
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-background-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ========================================
   Container & Layout
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* ========================================
   Language Switcher
   ======================================== */
.lang-switcher-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-s) var(--spacing-l);
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-m);
    font-weight: 600;
    font-size: var(--font-size-caption);
    transition: var(--transition-fast);
    cursor: pointer;
    white-space: nowrap;
}

.lang-switcher-btn:hover {
    background: var(--color-skoul-purple);
    color: white;
    border-color: var(--color-skoul-purple);
}

.lang-switcher-btn:active {
    transform: scale(0.98);
}

.lang-code {
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(250, 250, 250, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow var(--transition-fast);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-l) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-m);
    font-weight: 700;
    font-size: var(--font-size-heading-small);
}

/* TODO: Remove border-radius when transparent logo is provided */
.logo-icon {
    width: 2.5rem;
    height: 2.5rem;
    object-fit: contain;
    animation: float 3s ease-in-out infinite;
    border-radius: 20%;
}

.logo-text {
    background: var(--gradient-galaxy);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: var(--spacing-xxl);
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
    position: relative;
}

.nav-links a:hover {
    color: var(--color-skoul-purple);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-galaxy);
    transition: width var(--transition-fast);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a.active {
    color: var(--color-skoul-purple);
}

.nav-links a.active::after {
    width: 100%;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-splash);
    opacity: 0.08;
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 70%);
    animation: float 8s ease-in-out infinite;
}

.hero-background::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(107, 78, 230, 0.12) 0%, transparent 70%);
    animation: float 10s ease-in-out infinite reverse;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    padding: var(--spacing-5xl) 0;
}

.hero-badge {
    display: inline-block;
    padding: var(--spacing-m) var(--spacing-xl);
    background: var(--gradient-sunrise);
    color: var(--color-text-on-brand);
    border-radius: var(--radius-circular);
    font-weight: 700;
    font-size: var(--font-size-body);
    margin-bottom: var(--spacing-xl);
    animation: slideInLeft 0.6s ease-out;
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.hero-title {
    font-size: var(--font-size-display);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-xl);
    animation: slideInLeft 0.6s ease-out 0.1s both;
}

.gradient-text {
    background: var(--gradient-galaxy);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-body-large);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xxl);
    max-width: 600px;
    animation: slideInLeft 0.6s ease-out 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-l);
    margin-bottom: var(--spacing-4xl);
    animation: slideInLeft 0.6s ease-out 0.3s both;
}

.btn-primary,
.btn-secondary {
    padding: var(--spacing-l) var(--spacing-xxl);
    font-weight: 600;
    font-size: var(--font-size-body-large);
    border-radius: var(--radius-l);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-m);
    position: relative;
    overflow: hidden;
}

.btn-large {
    padding: var(--spacing-xl) var(--spacing-xxxl);
    font-size: 1.125rem;
    border-radius: var(--radius-xl);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-spark-orange) 0%, #FF8F66 100%);
    color: var(--color-text-on-brand);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
    border: none;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #E84E1B 0%, var(--color-spark-orange) 100%);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.4);
}

.btn-primary:active {
    transform: translateY(-1px) scale(0.98);
}

/* App Store Badge - Official Apple Design */
.app-store-badge {
    display: inline-block;
    transition: var(--transition-fast);
    /* Reset any inherited button styles */
    background: none !important;
    padding: 0 !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
}

.app-store-badge:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.app-store-badge:active {
    transform: scale(0.98);
}

.app-store-badge svg {
    display: block;
    height: 40px;
    width: auto;
}

/* Hero & Download CTA App Store Badge - Match btn-large height */
.hero-buttons .app-store-badge svg,
.download-actions .app-store-badge svg {
    height: 56px;
}

/* Navigation App Store Badge */
.download-btn.app-store-badge svg {
    height: 40px;
}

/* Mobile Nav App Store Badge */
.nav-links .app-store-badge svg {
    height: 44px;
}

.btn-secondary {
    background: white;
    color: var(--color-skoul-purple);
    border: 3px solid var(--color-skoul-purple);
}

.btn-secondary:hover {
    background: var(--color-skoul-purple);
    color: white;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 20px rgba(107, 78, 230, 0.3);
    border-color: var(--color-skoul-purple);
}

.hero-badges {
    display: flex;
    gap: var(--spacing-xxl);
    animation: slideInLeft 0.6s ease-out 0.4s both;
    flex-wrap: wrap;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-m);
    padding: var(--spacing-m) var(--spacing-xl);
    background: white;
    border-radius: var(--radius-l);
    box-shadow: 0 4px 12px rgba(107, 78, 230, 0.15);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.trust-badge:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 24px rgba(107, 78, 230, 0.25);
    border-color: var(--color-skoul-purple);
}

.badge-icon {
    font-size: 1.75rem;
    /* Pulse animation removed to reduce simultaneous animations */
}

.badge-label {
    font-size: var(--font-size-body);
    font-weight: 600;
    color: var(--color-text-primary);
    white-space: nowrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: slideInRight 0.6s ease-out 0.2s both;
}

.mascot-container {
    position: relative;
    width: 400px;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mascot {
    width: 15rem;
    height: 15rem;
    object-fit: contain;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 20px 40px rgba(107, 78, 230, 0.3));
    border-radius: 20%;
}

.floating-star {
    position: absolute;
    font-size: 2rem;
    opacity: 0.7;
    /* Twinkle animation removed to reduce simultaneous animations */
}

.star-1 {
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.star-2 {
    top: 60%;
    left: 5%;
    animation-delay: 0.5s;
}

.star-3 {
    bottom: 15%;
    right: 15%;
    animation-delay: 1s;
}

.hero-waves {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.hero-waves svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 100px;
}

/* ========================================
   Section Styles
   ======================================== */
section {
    padding: var(--spacing-5xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
    position: relative;
}

.section-header::after {
    content: '';
    display: block;
    width: 80px;
    height: 5px;
    background: var(--gradient-galaxy);
    margin: var(--spacing-xl) auto 0;
    border-radius: var(--radius-circular);
}

.section-title {
    font-size: var(--font-size-heading-large);
    font-weight: 700;
    margin-bottom: var(--spacing-l);
    color: var(--color-text-primary);
    line-height: 1.2;
    position: relative;
    display: inline-block;
}

.section-title::selection {
    background: var(--color-joy-pink);
    color: white;
}

.section-subtitle {
    font-size: var(--font-size-body-large);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Problem Section
   ======================================== */
.problem-section {
    background: var(--color-background-primary);
}

.problem-content {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xxl);
    align-items: flex-start;
    justify-content: space-between;
}

.problem-text {
    flex: 1 1 320px;
    max-width: 560px;
}

.problem-text p {
    font-size: var(--font-size-body-large);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.problem-intro {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-top: var(--spacing-l);
}

.problem-list {
    flex: 1 1 280px;
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--spacing-l);
}

.problem-list li {
    position: relative;
    padding-left: var(--spacing-xl);
    font-size: var(--font-size-body-large);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.problem-list li::before {
    content: "✔";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-accent-primary);
    font-weight: 600;
}

/* ========================================
   Solution Section
   ======================================== */
.solution-section {
    background: white;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xxl);
}

.solution-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xxxl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    height: 100%;
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    transition: height var(--transition-normal);
}

.solution-card:nth-child(1) {
    border-color: rgba(255, 107, 53, 0.2);
}

.solution-card:nth-child(1)::before {
    background: var(--gradient-sunrise);
}

.solution-card:nth-child(1):hover {
    border-color: var(--color-spark-orange);
    box-shadow: 0 12px 32px rgba(255, 107, 53, 0.2);
}

.solution-card:nth-child(2) {
    border-color: rgba(107, 78, 230, 0.2);
}

.solution-card:nth-child(2)::before {
    background: var(--gradient-ocean);
}

.solution-card:nth-child(2):hover {
    border-color: var(--color-skoul-purple);
    box-shadow: 0 12px 32px rgba(107, 78, 230, 0.2);
}

.solution-card:nth-child(3) {
    border-color: rgba(34, 197, 94, 0.2);
}

.solution-card:nth-child(3)::before {
    background: var(--gradient-forest);
}

.solution-card:nth-child(3):hover {
    border-color: var(--color-victory-green);
    box-shadow: 0 12px 32px rgba(34, 197, 94, 0.2);
}

.solution-card:hover {
    transform: translateY(-8px) scale(1.02);
}

.solution-card:hover::before {
    height: 6px;
}

.solution-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: var(--spacing-xl);
    transition: transform var(--transition-normal);
}

.solution-card:nth-child(1) .solution-icon {
    background: linear-gradient(135deg, var(--color-spark-orange), var(--color-curious-yellow));
    box-shadow: 0 6px 16px rgba(255, 107, 53, 0.3);
}

.solution-card:nth-child(2) .solution-icon {
    background: linear-gradient(135deg, var(--color-skoul-purple), var(--color-explorer-blue));
    box-shadow: 0 6px 16px rgba(107, 78, 230, 0.3);
}

.solution-card:nth-child(3) .solution-icon {
    background: linear-gradient(135deg, var(--color-victory-green), var(--color-explorer-blue));
    box-shadow: 0 6px 16px rgba(34, 197, 94, 0.3);
}

.solution-card:hover .solution-icon {
    transform: scale(1.1) rotate(5deg);
}

.solution-card h3 {
    font-size: var(--font-size-heading-small);
    margin-bottom: var(--spacing-m);
    color: var(--color-text-primary);
}

.solution-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   Deep Dive Section
   ======================================== */
.deep-dive-section {
    background: var(--color-background-primary);
}

.deep-dive-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xxl);
}

.deep-dive-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xxl);
    box-shadow: var(--shadow-sm);
    height: 100%;
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
    transition: all var(--transition-normal);
}

/* Subject-Specific Color Identities */
.deep-dive-card:nth-child(1) {
    border-color: var(--color-explorer-blue);
}

.deep-dive-card:nth-child(1):hover {
    transform: translateY(-8px) rotate(-1deg);
    box-shadow: 0 16px 32px rgba(14, 165, 233, 0.25);
    border-color: var(--color-explorer-blue);
}

.deep-dive-card:nth-child(1)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--gradient-ocean);
}

.deep-dive-card:nth-child(2) {
    border-color: var(--color-wonder-purple);
}

.deep-dive-card:nth-child(2):hover {
    transform: translateY(-8px) rotate(1deg);
    box-shadow: 0 16px 32px rgba(168, 85, 247, 0.25);
    border-color: var(--color-wonder-purple);
}

.deep-dive-card:nth-child(2)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--color-wonder-purple) 0%, var(--color-joy-pink) 100%);
}

.deep-dive-card:nth-child(3) {
    border-color: var(--color-spark-orange);
}

.deep-dive-card:nth-child(3):hover {
    transform: translateY(-8px) rotate(-1deg);
    box-shadow: 0 16px 32px rgba(255, 107, 53, 0.25);
    border-color: var(--color-spark-orange);
}

.deep-dive-card:nth-child(3)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--gradient-sunrise);
}

.deep-dive-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xl);
    animation: bounce-subtle 2s ease-in-out infinite;
}

/* Math - Blue */
.deep-dive-card:nth-child(1) .deep-dive-icon {
    background: linear-gradient(135deg, var(--color-explorer-blue), var(--color-skoul-purple));
    box-shadow: 0 8px 16px rgba(14, 165, 233, 0.3);
}

/* Reading - Purple/Pink */
.deep-dive-card:nth-child(2) .deep-dive-icon {
    background: linear-gradient(135deg, var(--color-wonder-purple), var(--color-joy-pink));
    box-shadow: 0 8px 16px rgba(168, 85, 247, 0.3);
}

/* Spelling - Orange/Yellow */
.deep-dive-card:nth-child(3) .deep-dive-icon {
    background: linear-gradient(135deg, var(--color-spark-orange), var(--color-curious-yellow));
    box-shadow: 0 8px 16px rgba(255, 107, 53, 0.3);
}

.deep-dive-card h3 {
    font-size: var(--font-size-heading-small);
    margin-bottom: var(--spacing-m);
    color: var(--color-text-primary);
}

.deep-dive-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.deep-dive-highlight {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-s);
}

.deep-dive-card h4 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-m);
    font-size: var(--font-size-body-large);
    color: var(--color-text-primary);
}

.deep-dive-steps,
.deep-dive-list {
    margin: 0;
    padding-left: var(--spacing-xl);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.deep-dive-steps {
    padding-left: var(--spacing-xxl);
}

.deep-dive-list li,
.deep-dive-steps li {
    margin-bottom: var(--spacing-s);
}

/* ========================================
   Trust Section
   ======================================== */
.trust-section {
    background: white;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-xxl);
}

.trust-card {
    background: var(--color-background-primary);
    border-radius: var(--radius-l);
    padding: var(--spacing-xxl);
    box-shadow: var(--shadow-sm);
    height: 100%;
}

.trust-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-l);
}

.trust-card h3 {
    font-size: var(--font-size-heading-small);
    margin-bottom: var(--spacing-m);
    color: var(--color-text-primary);
}

.trust-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--spacing-s);
}

.trust-list li {
    position: relative;
    padding-left: var(--spacing-l);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.trust-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-accent-primary);
    font-weight: 700;
}

/* ========================================
   How It Works Section
   ======================================== */
.how-section {
    background: var(--color-background-primary);
}

.how-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-xxl);
}

.how-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xxxl);
    box-shadow: var(--shadow-sm);
    text-align: left;
    position: relative;
    border: 2px solid transparent;
    transition: all var(--transition-normal);
}

.how-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.how-card:nth-child(1)::before {
    background: var(--gradient-ocean);
}

.how-card:nth-child(2)::before {
    background: var(--gradient-sunrise);
}

.how-card:nth-child(3)::before {
    background: var(--gradient-forest);
}

.how-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(107, 78, 230, 0.2);
}

.how-card:nth-child(1):hover {
    border-color: var(--color-explorer-blue);
}

.how-card:nth-child(2):hover {
    border-color: var(--color-spark-orange);
}

.how-card:nth-child(3):hover {
    border-color: var(--color-victory-green);
}

.how-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xl);
    transition: transform var(--transition-normal);
}

.how-card:nth-child(1) .how-icon {
    background: linear-gradient(135deg, var(--color-explorer-blue), var(--color-skoul-purple));
    box-shadow: 0 6px 16px rgba(14, 165, 233, 0.3);
}

.how-card:nth-child(2) .how-icon {
    background: linear-gradient(135deg, var(--color-spark-orange), var(--color-curious-yellow));
    box-shadow: 0 6px 16px rgba(255, 107, 53, 0.3);
}

.how-card:nth-child(3) .how-icon {
    background: linear-gradient(135deg, var(--color-victory-green), var(--color-explorer-blue));
    box-shadow: 0 6px 16px rgba(34, 197, 94, 0.3);
}

.how-card:hover .how-icon {
    transform: scale(1.1) rotate(-5deg);
}

.how-card h3 {
    font-size: var(--font-size-heading-small);
    margin-bottom: var(--spacing-m);
    color: var(--color-text-primary);
}

.how-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    font-size: var(--font-size-body-large);
}

/* ========================================
   Download CTA
   ======================================== */
.download-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-m);
    margin-top: var(--spacing-xl);
}

.download-actions .btn-secondary {
    border: 1px solid var(--color-border);
}

/* ========================================
   Features Section
   ======================================== */
.features {
    background: var(--color-background-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xxl);
}

.feature-card {
    padding: var(--spacing-xxl);
    background: white;
    border-radius: var(--radius-l);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-l);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: var(--spacing-xl);
    color: white;
}

.feature-title {
    font-size: var(--font-size-heading-small);
    font-weight: 600;
    margin-bottom: var(--spacing-m);
    color: var(--color-text-primary);
}

.feature-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   Comparison Section
   ======================================== */
.comparison {
    background: white;
}

.comparison-table {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-background-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.comparison-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    align-items: center;
    gap: var(--spacing-l);
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-header {
    background: var(--gradient-galaxy);
    color: white;
    font-weight: 700;
}

.comparison-logo {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-m);
    margin: 0 auto var(--spacing-s);
}

.comparison-brand {
    font-size: var(--font-size-body-large);
    font-weight: 700;
    text-align: center;
}

.comparison-feature {
    font-weight: 600;
    color: var(--color-text-primary);
}

.comparison-column {
    text-align: center;
    font-size: var(--font-size-heading-small);
}

.comparison-yes {
    color: var(--color-victory-green);
    font-weight: 700;
}

.comparison-no {
    color: #EF4444;
    font-weight: 700;
}

.comparison-mixed {
    color: var(--color-curious-yellow);
    font-weight: 700;
}

.comparison-highlight {
    background: var(--gradient-sunrise);
    color: white;
    padding: var(--spacing-s) var(--spacing-l);
    border-radius: var(--radius-m);
    font-weight: 700;
}

/* ========================================
   Subjects Section
   ======================================== */
.subjects {
    background: var(--color-background-secondary);
}

.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xxl);
}

.subject-card {
    position: relative;
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.subject-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.subject-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 120px;
    opacity: 0.1;
}

.subject-card.mathematics .subject-background {
    background: var(--gradient-ocean);
}

.subject-card.reading .subject-background {
    background: linear-gradient(135deg, var(--color-wonder-purple) 0%, var(--color-wonder-purple-light) 100%);
}

.subject-card.spelling .subject-background {
    background: var(--gradient-sunrise);
}

.subject-preview {
    position: relative;
    padding: var(--spacing-xxl) var(--spacing-xxl) 0;
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.preview-animation {
    position: relative;
    width: 100%;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-animation .animated-icon {
    font-size: 5rem;
    animation: iconFloat 3s ease-in-out infinite;
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.15));
}

@keyframes iconFloat {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-15px) rotate(5deg);
    }
}

.animation-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.animation-particles .particle {
    position: absolute;
    font-size: 1.5rem;
    font-weight: 700;
    opacity: 0;
    animation: particleFloat 4s ease-in-out infinite;
}

/* Math particles */
.math-animation .particle:nth-child(1) {
    top: 10%;
    left: 15%;
    color: var(--color-explorer-blue);
    animation-delay: 0s;
}

.math-animation .particle:nth-child(2) {
    top: 20%;
    right: 10%;
    color: var(--color-skoul-purple);
    animation-delay: 1s;
}

.math-animation .particle:nth-child(3) {
    bottom: 20%;
    left: 20%;
    color: var(--color-victory-green);
    animation-delay: 2s;
}

.math-animation .particle:nth-child(4) {
    bottom: 15%;
    right: 15%;
    color: var(--color-spark-orange);
    animation-delay: 3s;
}

/* Reading particles */
.reading-animation .particle:nth-child(1) {
    top: 15%;
    left: 20%;
    color: var(--color-wonder-purple);
    animation-delay: 0.5s;
}

.reading-animation .particle:nth-child(2) {
    top: 25%;
    right: 15%;
    color: var(--color-skoul-purple);
    animation-delay: 1.5s;
}

.reading-animation .particle:nth-child(3) {
    bottom: 20%;
    left: 25%;
    color: var(--color-joy-pink);
    animation-delay: 2.5s;
}

/* Spelling particles */
.spelling-animation .particle:nth-child(1) {
    top: 20%;
    left: 15%;
    color: var(--color-spark-orange);
    animation-delay: 0.3s;
}

.spelling-animation .particle:nth-child(2) {
    top: 15%;
    right: 20%;
    color: var(--color-curious-yellow);
    animation-delay: 1.3s;
}

.spelling-animation .particle:nth-child(3) {
    bottom: 25%;
    left: 30%;
    color: var(--color-victory-green);
    animation-delay: 2.3s;
}

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(0) scale(0.5);
    }
    20% {
        opacity: 1;
        transform: translateY(-10px) scale(1);
    }
    80% {
        opacity: 1;
        transform: translateY(-30px) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(-40px) scale(0.5);
    }
}

.subject-content {
    position: relative;
    padding: 0 var(--spacing-xxl) var(--spacing-xxl);
    z-index: 1;
}

.subject-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-l);
    display: block;
}

.subject-title {
    font-size: var(--font-size-heading-medium);
    font-weight: 600;
    margin-bottom: var(--spacing-m);
}

.subject-card.mathematics .subject-title {
    color: var(--color-explorer-blue);
}

.subject-card.reading .subject-title {
    color: var(--color-wonder-purple);
}

.subject-card.spelling .subject-title {
    color: var(--color-spark-orange);
}

.subject-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.subject-topics {
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.subject-topics li {
    padding: var(--spacing-m) 0;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
}

.subject-topics li::before {
    content: '✓';
    margin-right: var(--spacing-m);
    color: var(--color-victory-green);
    font-weight: 600;
}

.btn-subject {
    padding: var(--spacing-m) var(--spacing-xl);
    background: var(--color-background-secondary);
    color: var(--color-text-primary);
    border-radius: var(--radius-m);
    font-weight: 600;
    transition: var(--transition-fast);
    width: 100%;
    text-align: center;
}

.subject-card.mathematics .btn-subject:hover {
    background: var(--color-explorer-blue);
    color: white;
}

.subject-card.reading .btn-subject:hover {
    background: var(--color-wonder-purple);
    color: white;
}

.subject-card.spelling .btn-subject:hover {
    background: var(--color-spark-orange);
    color: white;
}

/* ========================================
   Safety Section
   ======================================== */
.safety {
    background: white;
}

.safety-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.safety-visual {
    display: flex;
    justify-content: center;
}

.safety-shield {
    width: 200px;
    height: 200px;
    background: var(--gradient-forest);
    border-radius: var(--radius-circular);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    animation: pulse 2s ease-in-out infinite;
    margin-bottom: var(--spacing-xxl);
}

.shield-icon {
    font-size: 6rem;
}

.compliance-badges {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    flex-wrap: wrap;
}

.compliance-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-s);
    transition: var(--transition-normal);
}

.compliance-badge:hover {
    transform: translateY(-8px);
}

.compliance-badge .badge-icon {
    width: 80px;
    height: 80px;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
    transition: var(--transition-normal);
}

.compliance-badge:hover .badge-icon {
    filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.25));
}

.compliance-badge .badge-label {
    font-size: var(--font-size-caption);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.safety-intro {
    font-size: var(--font-size-body-large);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xxl);
}

.safety-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.safety-item {
    display: flex;
    gap: var(--spacing-l);
    align-items: flex-start;
}

.safety-check {
    width: 32px;
    height: 32px;
    background: var(--color-victory-green);
    color: white;
    border-radius: var(--radius-circular);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.safety-details h4 {
    font-size: var(--font-size-body-large);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.safety-details p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ========================================
   Testimonials Section
   ======================================== */
.testimonials {
    background: var(--color-background-secondary);
}

.testimonials-disclaimer {
    font-size: var(--font-size-body);
    color: var(--color-text-secondary);
    font-style: italic;
    margin-top: var(--spacing-m);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xxl);
}

.testimonial-card {
    background: white;
    padding: var(--spacing-xxl);
    border-radius: var(--radius-l);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.rating-card {
    background: var(--gradient-galaxy);
    color: white;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--spacing-m);
}

.testimonial-stars {
    color: var(--color-curious-yellow);
    font-size: var(--font-size-body-large);
    margin-bottom: var(--spacing-l);
}

.testimonial-text {
    color: var(--color-text-primary);
    font-size: var(--font-size-body);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
    font-style: italic;
}

.rating-card .testimonial-text {
    color: white;
    font-style: normal;
    margin-bottom: 0;
}

.rating-downloads {
    font-weight: 600;
    font-size: var(--font-size-body-large);
}

.testimonial-author {
    display: flex;
    gap: var(--spacing-l);
    align-items: center;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-circular);
    background: var(--gradient-galaxy);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-heading-small);
}

.author-name {
    font-weight: 600;
    color: var(--color-text-primary);
}

.author-role {
    font-size: var(--font-size-caption);
    color: var(--color-text-secondary);
}

/* ========================================
   FAQ Section
   ======================================== */
.faq-section {
    background: var(--color-background-primary);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xxl);
}

.faq-card {
    background: white;
    padding: var(--spacing-xxl);
    border-radius: var(--radius-l);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-m);
    height: 100%;
}

.faq-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.faq-question {
    font-size: var(--font-size-body-large);
    font-weight: 600;
    color: var(--color-text-primary);
}

.faq-answer {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.faq-answer a {
    color: var(--color-skoul-purple);
    font-weight: 600;
    text-decoration: none;
    margin-left: var(--spacing-xs);
}

.faq-answer a:hover {
    text-decoration: underline;
}

.faq-cta {
    margin-top: var(--spacing-4xl);
    text-align: center;
}

/* ========================================
   Download CTA Section
   ======================================== */
.download-cta {
    background: var(--gradient-splash);
    color: white;
    position: relative;
    overflow: hidden;
}

.download-cta::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: float 12s ease-in-out infinite;
}

.download-cta::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 70%);
    animation: float 15s ease-in-out infinite reverse;
}

.download-cta .section-title,
.download-cta .download-subtitle {
    color: white;
    position: relative;
    z-index: 1;
}

.download-cta .section-header::after {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.4));
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.download-subtitle {
    font-size: var(--font-size-body-large);
    margin-bottom: var(--spacing-xxl);
    opacity: 0.9;
}

.download-badges {
    margin-bottom: var(--spacing-xxl);
}

.app-store-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-l);
    padding: var(--spacing-l) var(--spacing-xxl);
    background: white;
    color: var(--color-text-primary);
    border-radius: var(--radius-l);
    transition: var(--transition-fast);
    box-shadow: var(--shadow-lg);
}

.app-store-badge:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.badge-label {
    font-size: var(--font-size-caption);
    color: var(--color-text-secondary);
}

.badge-store {
    font-size: var(--font-size-heading-small);
    font-weight: 700;
    color: var(--color-text-primary);
}

.download-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-l);
}

.download-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-m);
    color: white;
}

.feature-bullet {
    color: var(--color-curious-yellow);
    font-weight: 700;
}

.phone-mockup {
    display: flex;
    justify-content: center;
    animation: float 3s ease-in-out infinite;
}

.phone-frame {
    width: 300px;
    height: 600px;
    background: white;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    position: relative;
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 30px;
    background: #1a1a1a;
    border-radius: 0 0 20px 20px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--gradient-splash);
    border-radius: 32px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mockup-content {
    text-align: center;
    color: white;
    padding: var(--spacing-xxl);
}

.mockup-icon {
    width: 5rem;
    height: 5rem;
    object-fit: contain;
    margin-bottom: var(--spacing-l);
    border-radius: 20%;
}

.mockup-content h3 {
    font-size: var(--font-size-heading-medium);
    margin-bottom: var(--spacing-m);
}

.mockup-content p {
    font-size: var(--font-size-body);
    opacity: 0.9;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: linear-gradient(135deg, #2d2a4a 0%, #1f1d35 100%);
    color: white;
    padding: var(--spacing-4xl) 0 var(--spacing-xxl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-4xl);
    margin-bottom: var(--spacing-4xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-m);
    margin-bottom: var(--spacing-l);
}

.footer-logo .logo-icon {
    width: 2.5rem;
    height: 2.5rem;
    object-fit: contain;
    border-radius: 20%;
}

.footer-logo .logo-text {
    font-size: var(--font-size-heading-small);
    font-weight: 700;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    max-width: 300px;
}

.footer-social {
    display: flex;
    gap: var(--spacing-l);
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-circular);
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--color-skoul-purple);
    transform: translateY(-2px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xxl);
}

.footer-heading {
    font-size: var(--font-size-body-large);
    font-weight: 600;
    margin-bottom: var(--spacing-l);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: var(--spacing-m);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
}

.footer-column a:hover {
    color: white;
    padding-left: var(--spacing-s);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-xl);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

.footer-compliance-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-l);
    margin-bottom: var(--spacing-l);
}

.footer-badge {
    width: 50px;
    height: 50px;
    opacity: 0.8;
    transition: var(--transition-fast);
}

.footer-badge:hover {
    opacity: 1;
    transform: translateY(-4px);
}

.footer-badge svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}

/* ========================================
   Skip to Content (Accessibility)
   ======================================== */
.skip-to-content {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-skoul-purple);
    color: white;
    padding: var(--spacing-m) var(--spacing-l);
    text-decoration: none;
    font-weight: 600;
    z-index: 10000;
    transition: top var(--transition-fast);
}

.skip-to-content:focus {
    top: 0;
}

/* ========================================
   Focus Indicators (Accessibility)
   ======================================== */
*:focus-visible {
    outline: 3px solid var(--color-skoul-purple);
    outline-offset: 2px;
    border-radius: var(--radius-s);
}

button:focus-visible,
a:focus-visible {
    outline: 3px solid var(--color-skoul-purple);
    outline-offset: 3px;
}

/* ========================================
   Mobile Menu Toggle
   ======================================== */
.mobile-cta {
    display: none; /* Hidden on desktop */
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-s);
    z-index: 1001;
}

.hamburger {
    position: relative;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: var(--transition-fast);
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    bottom: -7px;
}

.mobile-menu-toggle.active .hamburger {
    background: transparent;
}

.mobile-menu-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.mobile-menu-toggle.active .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
}

.nav-links.mobile-open {
    display: flex !important;
    flex-direction: column;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    padding: var(--spacing-xxl) var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing {
    background: var(--color-background-primary);
}

.pricing-card {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-4xl) var(--spacing-xxl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    position: relative;
    border: 2px solid var(--color-border);
    transition: var(--transition-normal);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(107, 78, 230, 0.2);
    border-color: var(--color-skoul-purple);
}

.pricing-badge {
    display: inline-block;
    padding: var(--spacing-s) var(--spacing-xl);
    background: var(--gradient-sunrise);
    color: white;
    border-radius: var(--radius-circular);
    font-weight: 600;
    font-size: var(--font-size-caption);
    margin-bottom: var(--spacing-l);
    animation: pulse 2s ease-in-out infinite;
}

.pricing-urgency {
    background: rgba(255, 107, 53, 0.1);
    border: 2px solid var(--color-spark-orange);
    border-radius: var(--radius-m);
    padding: var(--spacing-l);
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-primary);
    font-size: var(--font-size-body-large);
    text-align: center;
}

.pricing-urgency strong {
    color: var(--color-spark-orange);
    font-size: var(--font-size-heading-medium);
}

.pricing-amount {
    margin-bottom: var(--spacing-xl);
}

.price-free {
    display: block;
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--gradient-galaxy);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-s);
}

.price-until {
    display: block;
    color: var(--color-text-secondary);
    font-size: var(--font-size-body);
}

.pricing-divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--spacing-xxl) 0;
}

.pricing-future {
    margin-bottom: var(--spacing-xxl);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-s);
    color: var(--color-text-secondary);
    font-size: var(--font-size-body-large);
}

.price-regular {
    font-size: var(--font-size-heading-medium);
    font-weight: 700;
    color: var(--color-skoul-purple);
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: var(--spacing-xxl);
}

.pricing-features li {
    padding: var(--spacing-m) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-m);
    color: var(--color-text-primary);
    font-size: var(--font-size-body-large);
}

.pricing-features .check {
    color: var(--color-victory-green);
    font-weight: 700;
    font-size: 1.25rem;
}

/* ========================================
   Methodology Section
   ======================================== */
.methodology {
    background: white;
}

.methodology-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    margin-top: var(--spacing-4xl);
}

.methodology-principle {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xxl);
}

.principle-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.principle-content h3 {
    font-size: var(--font-size-heading-small);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-m);
}

.principle-content p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.grade-mapping {
    background: var(--color-background-secondary);
    padding: var(--spacing-xxl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.grade-mapping h3 {
    font-size: var(--font-size-heading-small);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-m);
    text-align: center;
}

.grade-note {
    text-align: center;
    color: var(--color-text-secondary);
    font-style: italic;
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-body);
}

.grade-table {
    background: white;
    border-radius: var(--radius-m);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.grade-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: var(--spacing-m);
    padding: var(--spacing-m) var(--spacing-l);
    border-bottom: 1px solid var(--color-border);
}

.grade-row:last-child {
    border-bottom: none;
}

.grade-header {
    background: var(--gradient-galaxy);
    color: white;
    font-weight: 700;
    padding: var(--spacing-l);
}

.grade-age,
.grade-system {
    text-align: center;
    font-size: var(--font-size-body);
}

.grade-footer {
    text-align: center;
    color: var(--color-skoul-purple);
    font-weight: 600;
    margin-top: var(--spacing-l);
    font-size: var(--font-size-body);
}

/* ========================================
   Story Section
   ======================================== */
.story {
    background: var(--color-background-secondary);
}

.story-content {
    max-width: 900px;
    margin: 0 auto;
}

.story-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.story-body {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.story-text p {
    font-size: var(--font-size-body-large);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.story-signature {
    margin-top: var(--spacing-xxl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--color-border);
}

.signature-text {
    font-weight: 600;
    color: var(--color-text-primary);
    font-style: italic;
}

.story-image {
    text-align: center;
}

.story-icon {
    font-size: 6rem;
    margin-bottom: var(--spacing-l);
    animation: pulse 2s ease-in-out infinite;
}

.story-caption {
    color: var(--color-text-secondary);
    font-size: var(--font-size-body);
    font-style: italic;
}

/* ========================================
   Newsletter Section
   ======================================== */
.newsletter {
    background: white;
    padding: var(--spacing-4xl) 0;
}

.newsletter-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.newsletter-text {
    margin-bottom: var(--spacing-xxl);
}

.newsletter-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--font-size-body-large);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-l);
    margin-bottom: var(--spacing-l);
}

.form-field {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.newsletter-input {
    padding: var(--spacing-l) var(--spacing-xl);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-m);
    font-size: var(--font-size-body-large);
    font-family: var(--font-family);
    transition: var(--transition-fast);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--color-skoul-purple);
    box-shadow: 0 0 0 3px rgba(107, 78, 230, 0.1);
}

.newsletter-input.error {
    border-color: #EF4444;
}

.newsletter-input.error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-error {
    color: #EF4444;
    font-size: var(--font-size-caption);
    margin-top: var(--spacing-s);
    min-height: 1.25rem;
    display: none;
}

.form-error.show {
    display: block;
}

.newsletter-btn {
    padding: var(--spacing-l) var(--spacing-xxl);
    white-space: nowrap;
}

.newsletter-privacy {
    font-size: var(--font-size-caption);
    color: var(--color-text-secondary);
}

.newsletter-privacy a {
    color: var(--color-skoul-purple);
    text-decoration: underline;
}

.newsletter-privacy a:hover {
    color: var(--color-skoul-purple-light);
}

/* ========================================
   Cookie Consent Banner
   ======================================== */
.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.15);
    z-index: 10000;
    padding: var(--spacing-xl) 0;
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

.cookie-consent.show {
    transform: translateY(0);
}

.cookie-consent-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xxl);
}

.cookie-text h3 {
    font-size: var(--font-size-heading-small);
    margin-bottom: var(--spacing-s);
    color: var(--color-text-primary);
}

.cookie-text p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-body);
}

.cookie-text a {
    color: var(--color-skoul-purple);
    text-decoration: underline;
}

.cookie-buttons {
    display: flex;
    gap: var(--spacing-l);
    flex-shrink: 0;
}

.cookie-buttons .btn-primary,
.cookie-buttons .btn-secondary {
    padding: var(--spacing-m) var(--spacing-xl);
    white-space: nowrap;
}

/* ========================================
   Back to Top Button
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    background: var(--color-skoul-purple);
    color: white;
    border: none;
    border-radius: var(--radius-circular);
    box-shadow: 0 4px 12px rgba(107, 78, 230, 0.3);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(100px);
    transition: all var(--transition-normal);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top:hover {
    background: var(--color-skoul-purple-light);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(107, 78, 230, 0.4);
}

.back-to-top:active {
    transform: translateY(-2px);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:focus-visible {
    outline: 3px solid var(--color-skoul-purple);
    outline-offset: 3px;
}

/* ========================================
   Animations
   ======================================== */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes twinkle {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.8);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce-subtle {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

@keyframes wiggle {
    0%, 100% {
        transform: rotate(0deg);
    }
    25% {
        transform: rotate(-3deg);
    }
    75% {
        transform: rotate(3deg);
    }
}

@keyframes rainbow-shimmer {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* ========================================
   Responsive Design
   ======================================== */
/* Navbar adjustments for longer text (French translations) */
@media (max-width: 1150px) and (min-width: 769px) {
    .nav-links {
        gap: var(--spacing-l);
    }

    .nav-links a {
        font-size: 0.9rem;
        white-space: nowrap;
    }

    .nav-content > .download-btn {
        padding: var(--spacing-s) var(--spacing-m);
        font-size: 0.9rem;
    }
}

@media (max-width: 1024px) {
    :root {
        --font-size-display: 3rem;
        --font-size-heading-large: 2rem;
        --font-size-heading-medium: 1.5rem;
    }

    .hero-content,
    .safety-content,
    .download-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xxl);
    }

    .hero-visual {
        order: -1;
    }

    .mascot-container {
        width: 300px;
        height: 300px;
    }

    .mascot {
        width: 12rem;
        height: 12rem;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-display: 2.5rem;
        --font-size-heading-large: 1.75rem;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    /* Show download button in mobile nav menu */
    .nav-content > .download-btn {
        display: none;
    }

    /* Show mobile CTA in opened menu */
    .mobile-cta {
        display: block;
    }

    /* Style mobile download button */
    .mobile-cta .download-btn {
        width: 100%;
        justify-content: center;
        margin-top: var(--spacing-l);
    }

    .lang-switcher-btn {
        padding: var(--spacing-s) var(--spacing-m);
        font-size: 0.75rem;
        margin-right: var(--spacing-m);
    }

    .hero {
        min-height: auto;
        padding-top: 100px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons a,
    .hero-buttons button {
        width: 100%;
        justify-content: center;
    }

    .hero-badges {
        flex-direction: column;
        gap: var(--spacing-l);
    }

    .trust-badge {
        width: 100%;
        justify-content: center;
    }

    .problem-content {
        flex-direction: column;
        gap: var(--spacing-xl);
    }

    .solution-grid,
    .deep-dive-grid,
    .trust-grid,
    .how-grid {
        grid-template-columns: 1fr;
    }

    .download-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .grade-row {
        grid-template-columns: 0.8fr 1fr 1fr 1fr;
        padding: var(--spacing-s) var(--spacing-m);
        gap: var(--spacing-xs);
        font-size: var(--font-size-caption);
    }

    .grade-age,
    .grade-system {
        font-size: var(--font-size-caption);
    }

    .story-body {
        grid-template-columns: 1fr;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-btn {
        width: 100%;
    }

    .cookie-consent-content {
        flex-direction: column;
        text-align: center;
    }

    .cookie-buttons {
        flex-direction: column;
        width: 100%;
    }

    .cookie-buttons .btn-primary,
    .cookie-buttons .btn-secondary {
        width: 100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-display: 2rem;
    }

    .container {
        padding: 0 var(--spacing-l);
    }

    .btn-large {
        padding: var(--spacing-l);
        font-size: var(--font-size-body);
    }

    .mascot-container {
        width: 200px;
        height: 200px;
    }

    .mascot {
        font-size: 8rem;
    }
}

/* ========================================
   iOS Smart App Banner
   ======================================== */
.ios-smart-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding: var(--spacing-m);
    z-index: 10000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.ios-smart-banner.banner-hiding {
    animation: slideUp 0.3s ease-out forwards;
}

@keyframes slideUp {
    from {
        transform: translateY(0);
        opacity: 1;
    }
    to {
        transform: translateY(-100%);
        opacity: 0;
    }
}

.banner-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-m);
    max-width: 100%;
    position: relative;
}

.banner-close {
    position: absolute;
    top: -4px;
    right: 0;
    background: transparent;
    border: none;
    padding: var(--spacing-s);
    cursor: pointer;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
    z-index: 1;
}

.banner-close:hover {
    color: var(--color-text-primary);
}

.banner-close:focus {
    outline: 2px solid var(--color-skoul-purple);
    outline-offset: 2px;
    border-radius: var(--radius-s);
}

.banner-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-m);
    flex-shrink: 0;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.banner-info {
    flex: 1;
    min-width: 0;
}

.banner-title {
    font-size: var(--font-size-body-large);
    font-weight: 600;
    color: var(--color-text-primary);
    line-height: 1.2;
    margin-bottom: 2px;
}

.banner-subtitle {
    font-size: var(--font-size-caption);
    color: var(--color-text-secondary);
    line-height: 1.3;
}

.banner-source {
    font-size: 0.75rem;
    color: var(--color-text-placeholder);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
}

.banner-button {
    background: var(--color-skoul-purple);
    color: white;
    padding: var(--spacing-s) var(--spacing-xl);
    border-radius: var(--radius-circular);
    font-weight: 600;
    font-size: var(--font-size-body);
    text-decoration: none;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 70px;
}

.banner-button:hover {
    background: var(--color-skoul-purple-light);
    transform: scale(1.05);
}

.banner-button:active {
    transform: scale(0.95);
}

.banner-button:focus {
    outline: 2px solid var(--color-skoul-purple);
    outline-offset: 2px;
}

/* Adjust body padding when banner is visible */
body.banner-visible {
    padding-top: 84px;
}

/* Adjust navbar when banner is visible */
body.banner-visible .navbar {
    top: 84px;
}

/* Mobile adjustments for banner */
@media (max-width: 480px) {
    .ios-smart-banner {
        padding: var(--spacing-s) var(--spacing-m);
    }

    .banner-icon {
        width: 50px;
        height: 50px;
    }

    .banner-content {
        gap: var(--spacing-s);
    }

    .banner-title {
        font-size: var(--font-size-body);
    }

    .banner-subtitle {
        font-size: 0.75rem;
    }

    .banner-button {
        padding: var(--spacing-s) var(--spacing-l);
        font-size: 0.875rem;
        min-width: 60px;
    }

    body.banner-visible {
        padding-top: 74px;
    }

    body.banner-visible .navbar {
        top: 74px;
    }
}

/* ========================================
   Accessibility: Reduced Motion Support
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    /* Disable parallax and transform effects */
    .hero-background {
        transform: none !important;
    }

    /* Keep opacity transitions for fade-in effects but make them instant */
    .solution-card,
    .deep-dive-card,
    .trust-card,
    .how-card,
    .testimonial-card,
    .download-content,
    .newsletter,
    .footer-column {
        opacity: 1 !important;
        transform: none !important;
    }
}