/* ============================================
   Phayel Enterprises - Main Stylesheet
   shadcn UI Inspired Design
   Mobile-First Responsive
   ============================================ */

/* Google Fonts - Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

:root {
    /* shadcn-inspired Color System */
    --background: hsl(0 0% 100%);
    --foreground: hsl(222.2 84% 4.9%);

    --card: hsl(0 0% 100%);
    --card-foreground: hsl(222.2 84% 4.9%);

    --popover: hsl(0 0% 100%);
    --popover-foreground: hsl(222.2 84% 4.9%);

    --primary: hsl(221.2 83.2% 53.3%);
    --primary-foreground: hsl(210 40% 98%);
    --primary-hover: hsl(221.2 83.2% 45%);

    --secondary: hsl(210 40% 96.1%);
    --secondary-foreground: hsl(222.2 47.4% 11.2%);

    --muted: hsl(210 40% 96.1%);
    --muted-foreground: hsl(215.4 16.3% 46.9%);

    --accent: hsl(210 40% 96.1%);
    --accent-foreground: hsl(222.2 47.4% 11.2%);

    --destructive: hsl(0 84.2% 60.2%);
    --destructive-foreground: hsl(210 40% 98%);

    --success: hsl(142.1 76.2% 36.3%);
    --success-foreground: hsl(355.7 100% 97.3%);

    --warning: hsl(38 92% 50%);
    --warning-foreground: hsl(48 96% 89%);

    --border: hsl(214.3 31.8% 91.4%);
    --input: hsl(214.3 31.8% 91.4%);
    --ring: hsl(221.2 83.2% 53.3%);

    /* Radius */
    --radius: 0.5rem;
    --radius-sm: 0.375rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--foreground);
    background-color: var(--muted);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

ul {
    list-style: none;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: var(--foreground);
    letter-spacing: -0.025em;
}

h1 {
    font-size: 1.875rem;
    font-weight: 700;
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

h3 {
    font-size: 1.25rem;
}

h4 {
    font-size: 1.125rem;
}

h5 {
    font-size: 1rem;
}

h6 {
    font-size: 0.875rem;
}

p {
    color: var(--muted-foreground);
    line-height: 1.625;
}

/* ============================================
   Container
   ============================================ */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* ============================================
   Header & Navigation
   ============================================ */

.header {
    background-color: var(--background);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(8px);
    background-color: rgba(255, 255, 255, 0.8);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--foreground);
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.logo span {
    color: var(--primary);
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--radius-sm);
    transition: background-color 0.2s ease;
}

.nav-toggle:hover {
    background-color: var(--muted);
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background-color: var(--foreground);
    border-radius: 1px;
    transition: all 0.2s ease;
}

.nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--background);
    border-bottom: 1px solid var(--border);
    padding: var(--spacing-4);
}

.nav.active {
    display: block;
}

.nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.nav-link {
    display: block;
    padding: var(--spacing-2) var(--spacing-3);
    color: var(--muted-foreground);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    background-color: var(--muted);
    color: var(--foreground);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.25rem;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn:focus-visible {
    outline: 2px solid var(--ring);
    outline-offset: 2px;
}

.btn:disabled {
    pointer-events: none;
    opacity: 0.5;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--primary-foreground);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: var(--primary-foreground);
}

.btn-secondary {
    background-color: var(--secondary);
    color: var(--secondary-foreground);
}

.btn-secondary:hover {
    background-color: hsl(210 40% 90%);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border);
    color: var(--foreground);
}

.btn-outline:hover {
    background-color: var(--muted);
}

.btn-ghost {
    background-color: transparent;
    color: var(--foreground);
}

.btn-ghost:hover {
    background-color: var(--muted);
}

.btn-lg {
    padding: var(--spacing-3) var(--spacing-6);
    font-size: 1rem;
}

.btn-sm {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: 0.75rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    background: linear-gradient(135deg, var(--primary) 0%, hsl(221.2 83.2% 40%) 100%);
    color: white;
    padding: var(--spacing-16) 0;
    text-align: center;
}

.hero .container {
    max-width: 800px;
}

.hero h1,
.hero h2 {
    color: white;
    font-size: 2rem;
    margin-bottom: var(--spacing-4);
}

.hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    line-height: 1.75;
    margin-bottom: var(--spacing-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero .btn {
    margin: var(--spacing-2);
}

.hero .btn-outline {
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
}

.hero .btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: white;
}

/* ============================================
   Section Styles
   ============================================ */

.section {
    padding: var(--spacing-16) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

.section-title h2 {
    margin-bottom: var(--spacing-2);
}

.section-title p {
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Course Cards
   ============================================ */

.courses-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

.course-card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.2s ease;
}

.course-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.course-image {
    width: 100%;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.course-image i,
.course-image svg {
    width: 48px;
    height: 48px;
    color: white;
    stroke-width: 1.5;
}

.course-content {
    padding: var(--spacing-5);
}

.course-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-2);
    background-color: var(--primary);
    color: var(--primary-foreground);
    font-size: 0.6875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-3);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.course-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-2);
}

.course-card p {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-4);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--border);
}

.course-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--foreground);
}

/* ============================================
   Features Section
   ============================================ */

.features {
    background-color: var(--background);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

.feature-item {
    text-align: center;
    padding: var(--spacing-6);
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.2s ease;
}

.feature-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary);
    color: white;
    border-radius: var(--radius);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-4);
}

.feature-icon i,
.feature-icon svg {
    width: 24px;
    height: 24px;
    stroke-width: 2;
}

.feature-item h4 {
    margin-bottom: var(--spacing-2);
}

.feature-item p {
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* ============================================
   Course Detail Page
   ============================================ */

.course-hero {
    background: linear-gradient(135deg, var(--primary) 0%, hsl(221.2 83.2% 40%) 100%);
    color: white;
    padding: var(--spacing-12) 0;
}

.course-hero h1 {
    color: white;
    margin-bottom: var(--spacing-4);
}

.course-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

.course-hero-meta span {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: 0.875rem;
    opacity: 0.9;
}

.course-hero-meta i,
.course-hero-meta svg {
    width: 16px;
    height: 16px;
    stroke-width: 2;
}

.course-hero p {
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
}

.course-detail-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
    margin-top: calc(var(--spacing-6) * -1);
    padding-top: var(--spacing-6);
}

.course-info {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
}

.course-info h2 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid var(--border);
}

.course-info ul {
    margin-bottom: var(--spacing-6);
}

.course-info li {
    padding: var(--spacing-2) 0;
    padding-left: var(--spacing-6);
    position: relative;
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.course-info li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background-color: var(--success);
    border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 10px;
}

.curriculum-module {
    background-color: var(--muted);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing-4);
    margin-bottom: var(--spacing-3);
}

.curriculum-module h4 {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-2);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.curriculum-module h4 i,
.curriculum-module h4 svg {
    width: 18px;
    height: 18px;
    color: var(--primary);
    stroke-width: 2;
}

.curriculum-module p {
    font-size: 0.8125rem;
    margin-bottom: 0;
}

/* ============================================
   Purchase Card
   ============================================ */

.purchase-card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    position: sticky;
    top: 80px;
}

.purchase-price {
    text-align: center;
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-6);
    border-bottom: 1px solid var(--border);
}

.purchase-price .price {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--foreground);
}

.purchase-includes {
    margin-bottom: var(--spacing-6);
}

.purchase-includes h4 {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-4);
}

.purchase-includes li {
    padding: var(--spacing-2) 0;
    color: var(--muted-foreground);
    font-size: 0.8125rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.purchase-includes li i,
.purchase-includes li svg {
    width: 16px;
    height: 16px;
    color: var(--primary);
    stroke-width: 2;
    flex-shrink: 0;
}

/* ============================================
   Forms
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-4);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--foreground);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-2) var(--spacing-3);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    background-color: var(--background);
    border: 1px solid var(--input);
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--ring);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--muted-foreground);
}

.form-group input.error {
    border-color: var(--destructive);
}

.form-group .error-message {
    color: var(--destructive);
    font-size: 0.75rem;
    margin-top: var(--spacing-1);
    display: none;
}

.form-group input.error + .error-message {
    display: block;
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-note {
    font-size: 0.75rem;
    color: var(--muted-foreground);
    margin-top: var(--spacing-4);
}

.form-note a {
    text-decoration: underline;
}

/* ============================================
   Razorpay Button
   ============================================ */

.razorpay-btn {
    background-color: var(--primary);
    color: white;
    padding: var(--spacing-3) var(--spacing-6);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    transition: all 0.2s ease;
}

.razorpay-btn:hover {
    background-color: var(--primary-hover);
}

.razorpay-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.razorpay-btn i,
.razorpay-btn svg {
    width: 18px;
    height: 18px;
    stroke-width: 2;
}

/* ============================================
   Policy Pages
   ============================================ */

.policy-content {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
}

.policy-content h1 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid var(--border);
}

.policy-content h2 {
    font-size: 1.125rem;
    margin-top: var(--spacing-8);
    margin-bottom: var(--spacing-3);
}

.policy-content p {
    margin-bottom: var(--spacing-4);
    font-size: 0.875rem;
}

.policy-content ul {
    margin-bottom: var(--spacing-4);
    padding-left: var(--spacing-6);
}

.policy-content li {
    list-style: disc;
    padding: var(--spacing-1) 0;
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.policy-meta {
    margin-top: var(--spacing-8);
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--border);
    font-size: 0.8125rem;
    color: var(--muted-foreground);
}

.policy-meta p {
    margin-bottom: var(--spacing-1);
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background-color: var(--foreground);
    color: white;
    padding: var(--spacing-12) 0 var(--spacing-6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-8);
}

.footer-col h4 {
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-4);
}

.footer-col p {
    color: var(--muted-foreground);
    font-size: 0.8125rem;
    line-height: 1.6;
}

.footer-col ul li {
    margin-bottom: var(--spacing-2);
}

.footer-col a {
    color: var(--muted-foreground);
    font-size: 0.8125rem;
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-6);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--muted-foreground);
    font-size: 0.8125rem;
    margin: 0;
}

/* ============================================
   About Page
   ============================================ */

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

.about-text {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
}

.about-text h2 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-4);
}

.about-text p {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-4);
}

.about-text ul {
    margin-bottom: var(--spacing-4);
}

.about-text li {
    padding: var(--spacing-2) 0;
    padding-left: var(--spacing-6);
    position: relative;
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.about-text li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background-color: var(--success);
    border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 10px;
}

/* ============================================
   Contact Page
   ============================================ */

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

.contact-info {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
}

.contact-info h2 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-4);
}

.contact-item {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.contact-icon {
    width: 44px;
    height: 44px;
    background-color: var(--primary);
    color: white;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i,
.contact-icon svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

.contact-item h4 {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-1);
}

.contact-item p {
    font-size: 0.8125rem;
    margin: 0;
}

.contact-form {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
}

.contact-form h2 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-6);
}

/* ============================================
   Alerts
   ============================================ */

.alert {
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-4);
    font-size: 0.875rem;
}

.alert-success {
    background-color: hsl(142.1 76.2% 94%);
    color: var(--success);
    border: 1px solid hsl(142.1 76.2% 80%);
}

.alert-error {
    background-color: hsl(0 84.2% 94%);
    color: var(--destructive);
    border: 1px solid hsl(0 84.2% 80%);
}

.alert-info {
    background-color: hsl(221.2 83.2% 94%);
    color: var(--primary);
    border: 1px solid hsl(221.2 83.2% 80%);
}

/* ============================================
   Utility Classes
   ============================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-2); }
.mt-2 { margin-top: var(--spacing-4); }
.mt-3 { margin-top: var(--spacing-6); }
.mt-4 { margin-top: var(--spacing-8); }

.mb-1 { margin-bottom: var(--spacing-2); }
.mb-2 { margin-bottom: var(--spacing-4); }
.mb-3 { margin-bottom: var(--spacing-6); }
.mb-4 { margin-bottom: var(--spacing-8); }

.hidden { display: none; }

/* ============================================
   Tablet Styles (768px+)
   ============================================ */

@media (min-width: 768px) {
    body {
        font-size: 1rem;
    }

    h1 {
        font-size: 2.25rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .hero h1,
    .hero h2 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.125rem;
    }

    .nav-toggle {
        display: none;
    }

    .nav {
        display: block;
        position: static;
        border-bottom: none;
        padding: 0;
    }

    .nav-list {
        flex-direction: row;
        gap: var(--spacing-1);
    }

    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

/* ============================================
   Desktop Styles (1024px+)
   ============================================ */

@media (min-width: 1024px) {
    h1 {
        font-size: 2.5rem;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .courses-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }

    .course-detail-content {
        grid-template-columns: 1fr 380px;
    }
}