/* ==========================================================================
   عقولنا - 3uquluna Website Styles
   A calming, pastel-themed Arabic RTL website about understanding brains
   ========================================================================== */

/* Import Google Fonts - Arabic fonts */
@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;500;600;700&family=Tajawal:wght@300;400;500;700&family=Baloo+Bhaijaan+2:wght@400;500;600;700&display=swap');

/* ==========================================================================
   CSS Custom Properties (Variables)
   ========================================================================== */
:root {
    /* Pastel Color Palette - Calming & Soft */
    --primary-lavender: #E8DFF5;
    --primary-lavender-dark: #C5B4E3;
    --primary-blue: #D4E8F2;
    --primary-blue-dark: #A8D4E8;
    --primary-mint: #D5ECD4;
    --primary-mint-dark: #B8DDB7;
    --primary-peach: #FCE4D8;
    --primary-peach-dark: #F5C9B8;
    --primary-pink: #F5E1E9;
    --primary-pink-dark: #E8C4D4;
    --primary-yellow: #FFF5E1;
    --primary-yellow-dark: #FFE8C2;

    /* Text Colors */
    --text-primary: #4A4A6A;
    --text-secondary: #6B6B8D;
    --text-light: #8989A3;
    --text-heading: #3D3D5C;

    /* Background Colors */
    --bg-light: #FAFBFE;
    --bg-white: #FFFFFF;
    --bg-cream: #FDF9F5;

    /* Accent Colors */
    --accent-purple: #9B8DC2;
    --accent-teal: #7EC8C8;
    --accent-coral: #E8A598;
    --accent-sage: #94B49F;

    /* Kids Section Colors - More vibrant but still soft */
    --kids-blue: #89CFF0;
    --kids-pink: #FFB6C1;
    --kids-green: #90EE90;
    --kids-yellow: #FFFACD;
    --kids-purple: #DDA0DD;
    --kids-orange: #FFDAB9;

    /* Typography */
    --font-main: 'Cairo', 'Tajawal', sans-serif;
    --font-heading: 'Tajawal', 'Cairo', sans-serif;
    --font-kids: 'Baloo Bhaijaan 2', 'Cairo', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-soft: 0 4px 20px rgba(155, 141, 194, 0.1);
    --shadow-medium: 0 8px 30px rgba(155, 141, 194, 0.15);
    --shadow-card: 0 2px 15px rgba(155, 141, 194, 0.08);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-light);
    color: var(--text-primary);
    line-height: 1.8;
    direction: rtl;
    text-align: right;
    min-height: 100vh;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-heading);
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

h1 {
    font-size: 2.75rem;
    font-weight: 700;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1.1rem;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

a {
    color: var(--accent-purple);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-lavender-dark);
}

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

.section {
    padding: var(--spacing-xxl) 0;
}

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

.section-header h2 {
    position: relative;
    display: inline-block;
    padding-bottom: var(--spacing-sm);
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 50%;
    transform: translateX(50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-lavender-dark), var(--accent-teal));
    border-radius: 2px;
}

.section-header p {
    font-size: 1.1rem;
    max-width: 700px;
    margin: var(--spacing-sm) auto 0;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow-soft);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-lavender), var(--primary-blue));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-heading);
}

.logo-text span {
    color: var(--accent-purple);
}

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

.nav-menu a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a.active {
    background: var(--primary-lavender);
    color: var(--text-heading);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    background: linear-gradient(135deg, var(--primary-lavender) 0%, var(--primary-blue) 50%, var(--primary-mint) 100%);
    padding: var(--spacing-xxl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, 30px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-text h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-heading);
}

.hero-text h1 span {
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-illustration {
    display: flex;
    justify-content: center;
    align-items: center;
}

.brain-illustration {
    width: 100%;
    max-width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--primary-pink) 100%);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    position: relative;
}

.brain-illustration::after {
    content: '';
    position: absolute;
    inset: -10px;
    border: 2px dashed var(--primary-lavender-dark);
    border-radius: var(--radius-xl);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-purple), var(--primary-lavender-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(155, 141, 194, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(155, 141, 194, 0.4);
    color: white;
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--text-heading);
    border: 2px solid var(--primary-lavender-dark);
}

.btn-secondary:hover {
    background: var(--primary-lavender);
    color: var(--text-heading);
}

.btn-kids {
    background: linear-gradient(135deg, var(--kids-blue), var(--kids-purple));
    color: white;
    font-family: var(--font-kids);
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
}

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-normal);
    border: 1px solid rgba(155, 141, 194, 0.1);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.card-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.card-icon.lavender { background: var(--primary-lavender); }
.card-icon.blue { background: var(--primary-blue); }
.card-icon.mint { background: var(--primary-mint); }
.card-icon.peach { background: var(--primary-peach); }
.card-icon.pink { background: var(--primary-pink); }
.card-icon.yellow { background: var(--primary-yellow); }

.card h3 {
    margin-bottom: var(--spacing-xs);
}

.card p {
    font-size: 0.95rem;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
    font-weight: 600;
    color: var(--accent-purple);
}

.card-link:hover {
    gap: var(--spacing-sm);
}

/* Card Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

/* ==========================================================================
   Topics/Categories Section
   ========================================================================== */
.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.topic-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    cursor: pointer;
}

.topic-card:hover {
    border-color: var(--primary-lavender-dark);
    transform: scale(1.02);
}

.topic-card .icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.topic-card h4 {
    margin-bottom: var(--spacing-xs);
}

.topic-card p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ==========================================================================
   Info Boxes
   ========================================================================== */
.info-box {
    background: linear-gradient(135deg, var(--primary-lavender) 0%, var(--bg-white) 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    border-right: 4px solid var(--accent-purple);
}

.info-box.tip {
    background: linear-gradient(135deg, var(--primary-mint) 0%, var(--bg-white) 100%);
    border-right-color: var(--accent-sage);
}

.info-box.warning {
    background: linear-gradient(135deg, var(--primary-peach) 0%, var(--bg-white) 100%);
    border-right-color: var(--accent-coral);
}

.info-box.important {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--bg-white) 100%);
    border-right-color: var(--accent-teal);
}

.info-box-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.info-box-header .icon {
    font-size: 1.5rem;
}

.info-box-header h4 {
    margin-bottom: 0;
}

/* ==========================================================================
   Content Article Styles
   ========================================================================== */
.article-content {
    max-width: 800px;
    margin: 0 auto;
}

.article-content h2 {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--primary-lavender);
}

.article-content h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.article-content ul,
.article-content ol {
    margin: var(--spacing-sm) 0;
    padding-right: var(--spacing-lg);
}

.article-content li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.article-content blockquote {
    background: var(--primary-lavender);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    font-style: italic;
    border-right: 4px solid var(--accent-purple);
}

/* ==========================================================================
   Kids Section Styles
   ========================================================================== */
.kids-section {
    font-family: var(--font-kids);
}

.kids-section h1,
.kids-section h2,
.kids-section h3,
.kids-section h4 {
    font-family: var(--font-kids);
}

.kids-hero {
    background: linear-gradient(135deg, var(--kids-blue) 0%, var(--kids-pink) 50%, var(--kids-yellow) 100%);
    padding: var(--spacing-xxl) 0;
    position: relative;
    overflow: hidden;
}

.kids-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 80%, var(--kids-purple) 0%, transparent 15%),
        radial-gradient(circle at 80% 20%, var(--kids-green) 0%, transparent 15%),
        radial-gradient(circle at 50% 50%, var(--kids-orange) 0%, transparent 20%);
    opacity: 0.3;
}

.kids-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-medium);
    border: 3px solid var(--kids-blue);
    position: relative;
    overflow: hidden;
}

.kids-card::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 60px;
    height: 60px;
    background: var(--kids-yellow);
    border-radius: var(--radius-full);
    opacity: 0.5;
}

.kids-card h3 {
    color: var(--text-heading);
    font-size: 1.5rem;
}

.kids-card .icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
}

/* Fun animated elements for kids */
.bounce {
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.wiggle {
    animation: wiggle 3s ease-in-out infinite;
}

@keyframes wiggle {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(5deg); }
    75% { transform: rotate(-5deg); }
}

/* ==========================================================================
   Statistics Section
   ========================================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-lg);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-purple);
    font-family: var(--font-heading);
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* ==========================================================================
   Testimonials
   ========================================================================== */
.testimonial-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-card);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-md);
    font-size: 4rem;
    color: var(--primary-lavender);
    font-family: serif;
    line-height: 1;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: var(--spacing-md);
    padding-top: var(--spacing-md);
}

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

.testimonial-avatar {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: var(--primary-lavender);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.testimonial-name {
    font-weight: 600;
    color: var(--text-heading);
}

.testimonial-role {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ==========================================================================
   FAQ Accordion
   ========================================================================== */
.faq-item {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.faq-question {
    padding: var(--spacing-md);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-heading);
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--primary-lavender);
}

.faq-question .icon {
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-question .icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 var(--spacing-md);
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item.active .faq-answer {
    padding: var(--spacing-md);
    max-height: 500px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: var(--text-heading);
    color: var(--bg-light);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    color: var(--bg-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.footer-section p {
    color: rgba(255,255,255,0.7);
    font-size: 0.95rem;
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

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

.footer-section ul a:hover {
    color: var(--primary-lavender);
}

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

.footer-bottom p {
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

/* ==========================================================================
   Breadcrumb
   ========================================================================== */
.breadcrumb {
    padding: var(--spacing-sm) 0;
    background: var(--bg-cream);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    list-style: none;
    flex-wrap: wrap;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-light);
    font-size: 0.9rem;
}

.breadcrumb-list li a {
    color: var(--text-secondary);
}

.breadcrumb-list li a:hover {
    color: var(--accent-purple);
}

.breadcrumb-list li:last-child {
    color: var(--text-heading);
    font-weight: 500;
}

/* ==========================================================================
   Page Header
   ========================================================================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-lavender) 0%, var(--primary-blue) 100%);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.page-header h1 {
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   Sidebar
   ========================================================================== */
.content-with-sidebar {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-xl);
}

.sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-widget {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-card);
}

.sidebar-widget h4 {
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--primary-lavender);
}

.sidebar-widget ul {
    list-style: none;
}

.sidebar-widget ul li {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--primary-lavender);
}

.sidebar-widget ul li:last-child {
    border-bottom: none;
}

.sidebar-widget ul a {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
}

.sidebar-widget ul a:hover {
    color: var(--accent-purple);
}

/* ==========================================================================
   Search
   ========================================================================== */
.search-box {
    position: relative;
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-right: 3rem;
    border: 2px solid var(--primary-lavender);
    border-radius: var(--radius-md);
    font-family: var(--font-main);
    font-size: 1rem;
    background: var(--bg-white);
    transition: border-color var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-purple);
}

.search-btn {
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 1.25rem;
}

/* ==========================================================================
   Tags
   ========================================================================== */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-lavender);
    color: var(--text-heading);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}

.tag:hover {
    background: var(--primary-lavender-dark);
}

/* ==========================================================================
   Progress/Steps
   ========================================================================== */
.steps {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin: var(--spacing-lg) 0;
}

.steps::before {
    content: '';
    position: absolute;
    top: 25px;
    right: 25px;
    left: 25px;
    height: 3px;
    background: var(--primary-lavender);
    z-index: 0;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: var(--bg-white);
    border: 3px solid var(--primary-lavender);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: var(--spacing-xs);
}

.step.active .step-number {
    background: var(--accent-purple);
    border-color: var(--accent-purple);
    color: white;
}

.step-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
    .content-with-sidebar {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-illustration {
        order: -1;
    }

    .brain-illustration {
        max-width: 280px;
        height: 280px;
        font-size: 5rem;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 80%;
        height: calc(100vh - 70px);
        background: var(--bg-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-medium);
        transition: right var(--transition-normal);
        gap: var(--spacing-xs);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .section {
        padding: var(--spacing-xl) 0;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .steps {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .steps::before {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

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

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

/* ==========================================================================
   Print Styles
   ========================================================================== */
@media print {
    .header,
    .footer,
    .nav-toggle,
    .btn {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .card,
    .info-box {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* ==========================================================================
   Accessibility
   ========================================================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

:focus-visible {
    outline: 3px solid var(--accent-purple);
    outline-offset: 2px;
}

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