/* ==========================================================================
   CODEZEN TUTOR - CSS DESIGN SYSTEM & PREMIUM STYLE SHEET
   ========================================================================== */

/* 1. SETUP & CORE DESIGN TOKENS */
:root {
    /* Color Palette - Dark Mode Defaults */
    --bg-main: #090d16;
    --bg-main-rgb: 9, 13, 22;
    --bg-surface: rgba(17, 24, 39, 0.7);
    --bg-surface-solid: #111827;
    --bg-surface-hover: rgba(31, 41, 55, 0.8);
    --border-color: rgba(243, 244, 246, 0.08);
    --border-color-hover: rgba(6, 182, 212, 0.4);
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --primary: #06b6d4; /* Vibrant Cyan */
    --primary-rgb: 6, 182, 212;
    --primary-glow: rgba(6, 182, 212, 0.45);
    --secondary: #6366f1; /* Tech Indigo */
    --secondary-rgb: 99, 102, 241;
    --accent: #10b981; /* Success Emerald */
    --accent-rgb: 16, 185, 129;
    
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(6, 182, 212, 0.15);
    
    --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);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* Light Mode Overrides */
body.light-mode {
    --bg-main: #f8fafc;
    --bg-main-rgb: 248, 250, 252;
    --bg-surface: rgba(255, 255, 255, 0.8);
    --bg-surface-solid: #ffffff;
    --bg-surface-hover: rgba(241, 245, 249, 0.9);
    --border-color: rgba(0, 0, 0, 0.06);
    --border-color-hover: rgba(6, 182, 212, 0.5);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 20px rgba(6, 182, 212, 0.08);
}

/* 2. BASE RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

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

ul {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    color: inherit;
    outline: none;
}

button {
    cursor: pointer;
    background: none;
    border: none;
}

/* 3. LAYOUT UTILITIES */
.section {
    padding: 100px 0;
    position: relative;
}

.section.alt-bg {
    background-color: rgba(var(--secondary-rgb), 0.02);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 10;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
    border-radius: 30px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 15px;
    border: 1px solid rgba(var(--primary-rgb), 0.15);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 38px;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.25;
    margin-bottom: 20px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 18px;
    font-weight: 400;
}

.grid-layout {
    display: grid;
    gap: 30px;
}

.grid-layout.cols-4 {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-layout.cols-3 {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.accent-text {
    color: var(--primary);
}

/* 4. DYNAMIC BACKGROUND GLOWS */
.ambient-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.15;
}

body.light-mode .ambient-glow {
    opacity: 0.08;
}

.bg-glow-1 {
    top: 10%;
    left: 5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}

.bg-glow-2 {
    top: 30%;
    right: 5%;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
}

.bg-glow-3 {
    bottom: 10%;
    left: 20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
}

/* 5. MAIN HEADER & STICKY NAV */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-normal);
    padding: 24px 0;
}

.main-header.scrolled {
    padding: 14px 0;
    background: rgba(var(--bg-main-rgb), 0.82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 24px;
    color: var(--primary);
    filter: drop-shadow(0 0 8px rgba(var(--primary-rgb), 0.5));
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    position: relative;
    padding: 6px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-normal);
}

body.light-mode .theme-toggle-btn {
    background: rgba(0, 0, 0, 0.04);
}

.theme-toggle-btn:hover {
    color: var(--primary);
    border-color: var(--primary-glow);
    background: rgba(var(--primary-rgb), 0.05);
    transform: rotate(15deg);
}

.theme-toggle-btn .sun-icon {
    display: none;
}

body.light-mode .theme-toggle-btn .moon-icon {
    display: none;
}

body.light-mode .theme-toggle-btn .sun-icon {
    display: block;
}

/* CTA Navigation Button */
.cta-nav-btn {
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #ffffff !important;
    font-weight: 700;
    font-size: 14px;
    border-radius: 30px;
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.3);
}

.cta-nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.5);
}

.nav-btn-mobile {
    display: none;
}

/* Hamburger button */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
}

.hamburger-btn .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 4px;
    transition: var(--transition-normal);
}

/* 6. HERO SECTION */
.hero-section {
    padding: 180px 0 100px 0;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 10;
    width: 100%;
}

.hero-content {
    flex: 1.2;
    min-width: 0;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(var(--secondary-rgb), 0.08);
    border: 1px solid rgba(var(--secondary-rgb), 0.15);
    color: var(--secondary);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 25px;
    max-width: 100%;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 54px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 25px;
}

.hero-desc {
    color: var(--text-secondary);
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-ctas {
    display: flex;
    gap: 20px;
    margin-bottom: 50px;
}

.hero-btn {
    padding: 16px 36px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.hero-btn.primary-btn {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #ffffff;
    box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.35);
}

.hero-btn.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(var(--primary-rgb), 0.5);
}

.hero-btn.secondary-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

body.light-mode .hero-btn.secondary-btn {
    background: rgba(0, 0, 0, 0.02);
}

.hero-btn.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--primary);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 30px;
}

.stat-item h3 {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 5px;
}

.stat-item p {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background-color: var(--border-color);
}

.hero-visual {
    flex: 0.8;
    display: flex;
    justify-content: center;
    position: relative;
    min-width: 0;
    width: 100%;
}

/* 7. TECH GRAPHIC ENGINE (100% CSS) */
.tech-graphic-container {
    position: relative;
    width: 100%;
    max-width: 450px;
    height: 400px;
}

.code-box {
    background: #0b0f19;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-lg), 0 30px 60px rgba(0, 0, 0, 0.4);
    width: 100%;
    height: 320px;
    overflow: hidden;
    position: relative;
    transition: var(--transition-normal);
}

.code-box:hover {
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.code-box-header {
    background: #111827;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.code-box-header .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.code-box-header .dot.red { background-color: #ef4444; }
.code-box-header .dot.yellow { background-color: #f59e0b; }
.code-box-header .dot.green { background-color: #10b981; }

.code-box-header .file-name {
    margin-left: 10px;
    font-family: monospace;
    font-size: 12px;
    color: var(--text-muted);
}

.code-box-body {
    padding: 20px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    line-height: 1.5;
    text-align: left;
    color: #e2e8f0;
}

.code-box-body pre {
    overflow-x: auto;
}

.code-box-body .keyword { color: #f43f5e; }
.code-box-body .func { color: #3b82f6; }
.code-box-body .string { color: #10b981; }
.code-box-body .number { color: #f59e0b; }
.code-box-body .comment { color: #6b7280; font-style: italic; }

/* Floating badges */
.floating-badge {
    position: absolute;
    background: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    padding: 12px 20px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 15px;
    z-index: 20;
    transition: var(--transition-normal);
}

body.light-mode .floating-badge {
    background: rgba(255, 255, 255, 0.85);
}

.floating-badge:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.floating-badge h4 {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
}

.floating-badge p {
    font-size: 12px;
    color: var(--text-muted);
}

.floating-badge i {
    font-size: 26px;
}

.python-icon { color: #38bdf8; }
.scratch-icon { color: #f97316; }
.cplus-icon { color: #6366f1; }

.badge-1 {
    top: -20px;
    right: -20px;
    animation: floating-anim 6s ease-in-out infinite alternate;
}

.badge-2 {
    bottom: 20px;
    left: -40px;
    animation: floating-anim 8s ease-in-out infinite alternate-reverse;
}

.badge-3 {
    bottom: -30px;
    right: 20px;
    animation: floating-anim 7s ease-in-out infinite alternate;
}

@keyframes floating-anim {
    0% { transform: translateY(0); }
    100% { transform: translateY(-15px); }
}

/* 8. FEATURE / WHY US CARDS */
.feature-card {
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    padding: 40px 30px;
    border-radius: 20px;
    transition: var(--transition-normal);
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-glow);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.feature-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(var(--primary-rgb), 0.08);
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: var(--transition-normal);
}

.feature-card:hover .feature-icon-wrapper {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 0 15px rgba(var(--primary-rgb), 0.4);
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

/* 9. PATHWAYS SECTION */
.pathway-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 14px 28px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 15px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

body.light-mode .tab-btn {
    background: var(--bg-surface-solid);
}

.tab-btn:hover, .tab-btn.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 8px 20px rgba(var(--primary-rgb), 0.25);
    transform: translateY(-2px);
}

.tab-btn i {
    font-size: 16px;
}

.tab-content-container {
    position: relative;
    width: 100%;
}

.tab-pane {
    display: none;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.tab-pane.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Pathway Card Grid */
.pathway-card {
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 50px;
    display: flex;
    gap: 50px;
    align-items: center;
    box-shadow: var(--shadow-lg);
    text-align: left;
}

body.light-mode .pathway-card {
    background: var(--bg-surface-solid);
}

.pathway-info {
    flex: 1.2;
}

.pathway-icon-main {
    width: 70px;
    height: 70px;
    border-radius: 20px;
    background: rgba(var(--primary-rgb), 0.08);
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 25px;
}

.pathway-info h3 {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 15px;
}

.pathway-info .sub-lead {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 30px;
}

.pathway-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
}

.pathway-list li {
    font-size: 15px;
    color: var(--text-secondary);
    position: relative;
    padding-left: 28px;
}

.pathway-list li i {
    position: absolute;
    left: 0;
    top: 4px;
    color: var(--accent);
    font-size: 16px;
}

.pathway-list li strong {
    color: var(--text-primary);
}

.pathway-badge-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: stretch;
}

.path-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.path-badge i {
    font-size: 13px;
}

.path-badge.price-badge {
    color: #ffffff;
    border-color: rgba(var(--primary-rgb), 0.58);
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.96), rgba(99, 102, 241, 0.9));
    box-shadow: 0 12px 30px rgba(var(--primary-rgb), 0.22);
}

.path-badge.price-badge strong {
    font-size: 16px;
    letter-spacing: 0;
}

.path-badge.discount-badge {
    color: #fef3c7;
    border-color: rgba(245, 158, 11, 0.48);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(34, 197, 94, 0.12));
}

.path-badge.discount-badge i {
    color: #fbbf24;
}

.path-badge.course-duration i {
    color: var(--primary);
}

body.light-mode .path-badge {
    background: rgba(0, 0, 0, 0.02);
}

body.light-mode .path-badge.price-badge {
    background: linear-gradient(135deg, #06b6d4, #6366f1);
    color: #ffffff;
}

body.light-mode .path-badge.discount-badge {
    color: #92400e;
    background: #fffbeb;
    border-color: #f59e0b;
}

.pathway-roadmap {
    flex: 0.8;
    display: flex;
    flex-direction: column;
    gap: 30px;
    border-left: 2px dashed var(--border-color);
    padding-left: 30px;
    position: relative;
}

.roadmap-step {
    position: relative;
}

.roadmap-step .step-num {
    position: absolute;
    left: -47px;
    top: -5px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-surface-solid);
    border: 2px solid var(--primary);
    color: var(--primary);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 10px rgba(var(--primary-rgb), 0.2);
}

body.light-mode .roadmap-step .step-num {
    background: #ffffff;
}

.roadmap-step h4 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.roadmap-step p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Pathway Detail CTA Button */
.pathway-detail-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    padding: 11px 22px;
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.1), rgba(99,102,241,0.1));
    border: 1px solid rgba(var(--primary-rgb), 0.3);
    border-radius: 10px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition-normal);
    align-self: flex-start;
}

.pathway-detail-btn:hover {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.3);
}

body.light-mode .pathway-detail-btn {
    background: rgba(var(--primary-rgb), 0.06);
}

/* 10. TUITION CALCULATOR */
.calculator-box {
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    display: flex;
    overflow: hidden;
    text-align: left;
    margin-top: 20px;
}

body.light-mode .calculator-box {
    background: var(--bg-surface-solid);
}

.calc-inputs {
    flex: 1.2;
    padding: 50px;
}

.calc-inputs h3 {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 10px;
}

.calc-inputs h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--primary);
    border-radius: 4px;
}

.input-group {
    margin-bottom: 30px;
}

.input-group:last-child {
    margin-bottom: 0;
}

.input-group label {
    display: block;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

/* Radio tiles */
.radio-tiles {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.tile-radio input[type="radio"] {
    display: none;
}

.tile-radio-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 10px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    text-align: center;
    transition: var(--transition-normal);
}

body.light-mode .tile-radio-card {
    background: rgba(0, 0, 0, 0.01);
}

.tile-radio-card i {
    font-size: 22px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    transition: var(--transition-fast);
}

.tile-radio-card strong {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 700;
    display: block;
    margin-bottom: 2px;
}

.tile-radio-card span {
    font-size: 11px;
    color: var(--text-muted);
}

.tile-radio input[type="radio"]:checked + .tile-radio-card {
    border-color: var(--primary);
    background: rgba(var(--primary-rgb), 0.05);
    box-shadow: 0 0 12px rgba(var(--primary-rgb), 0.15);
}

.tile-radio input[type="radio"]:checked + .tile-radio-card i {
    color: var(--primary);
    transform: scale(1.1);
}

/* Styled Select */
.styled-select {
    width: 100%;
    padding: 14px 20px;
    background: rgba(255, 255, 255, 0.02);
    background-color: #1e293b;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%239ca3af%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 20px top 50%;
    background-size: 12px auto;
}

/* Fix native dropdown option colors in dark mode */
.styled-select option {
    background-color: #1e293b;
    color: #f1f5f9;
}

.styled-select option:checked,
.styled-select option:hover {
    background-color: #10b981;
    color: #ffffff;
}

body.light-mode .styled-select {
    background-color: #ffffff;
    color: #0f172a;
}

body.light-mode .styled-select option {
    background-color: #ffffff;
    color: #0f172a;
}

body.light-mode .styled-select option:checked {
    background-color: #10b981;
    color: #ffffff;
}

.styled-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(var(--primary-rgb), 0.1);
}

/* Button Group Toggle */
.btn-group-toggle {
    display: flex;
    gap: 12px;
}

.toggle-btn {
    flex: 1;
    padding: 12px 10px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 14px;
    text-align: center;
    transition: var(--transition-normal);
}

body.light-mode .toggle-btn {
    background: rgba(0, 0, 0, 0.01);
}

.toggle-btn.active, .toggle-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(var(--primary-rgb), 0.04);
}

/* Results Card */
.calc-results {
    flex: 0.8;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.08) 0%, rgba(99, 102, 241, 0.08) 100%);
    border-left: 1px solid var(--border-color);
    padding: 50px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.calc-results h3 {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 20px;
}

.course-suggestion h4 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.course-suggestion p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.calc-hr {
    border: none;
    height: 1px;
    background: var(--border-color);
    margin: 25px 0;
}

.pricing-metrics {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-secondary);
}

.metric-row strong {
    color: var(--text-primary);
    font-size: 15px;
}

.metric-row strong .unit {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.metric-row.total-row {
    margin-top: 15px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    align-items: center;
}

.metric-row.total-row span {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 15px;
}

.total-price-box {
    text-align: right;
}

#monthlyTotal {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 800;
    color: var(--accent);
    display: block;
    line-height: 1;
    margin-bottom: 4px;
    filter: drop-shadow(0 0 10px rgba(16, 185, 129, 0.2));
}

.total-price-box .sub-label {
    font-size: 11px;
    color: var(--text-muted);
}

.calc-cta-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #ffffff;
    font-weight: 700;
    font-size: 15px;
    border-radius: 12px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.2);
}

.calc-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(var(--primary-rgb), 0.4);
}

/* 11. PREMIUM TUTOR SECTION */
.tutor-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; padding: 20px 0; }
.tutor-card { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 24px; padding: 24px; position: relative; overflow: hidden; transition: 0.3s; }
.tutor-card:hover { transform: translateY(-5px); border-color: var(--primary); box-shadow: 0 20px 40px rgba(0,0,0,0.1); }
.tutor-header { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.avatar-ring { width: 72px; height: 72px; border-radius: 50%; border: 3px solid var(--primary); padding: 3px; }
.avatar-ring img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
.tutor-meta h3 { font-size: 18px; margin: 0; }
.tutor-badge { font-size: 12px; color: var(--primary); background: rgba(var(--primary-rgb), 0.1); padding: 2px 8px; border-radius: 4px; }
.skill-track { margin: 16px 0; }
.skill-bar { height: 6px; background: var(--border-color); border-radius: 3px; overflow: hidden; margin-top: 6px; }
.skill-fill { height: 100%; background: var(--primary); border-radius: 3px; }
.tutor-achievements { display: flex; gap: 8px; margin: 16px 0; }
.achievement-chip { font-size: 11px; padding: 4px 8px; background: var(--bg-body); border: 1px solid var(--border-color); border-radius: 12px; }
.tutor-cta { display: flex; gap: 10px; margin-top: 20px; }
.btn-tutor { flex: 1; padding: 10px; border-radius: 8px; font-weight: 600; font-size: 13px; text-align: center; cursor: pointer; transition: 0.2s; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-outline { border: 1px solid var(--border-color); color: var(--text-primary); }

/* 12. TESTIMONIAL SLIDER */
.testimonial-slider-container {
    position: relative;
    max-width: 850px;
    margin: 0 auto;
    overflow: hidden;
    padding: 20px 0;
}

.testimonial-slider {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.testimonial-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transform: translateX(50px);
    transition: opacity 0.5s ease, transform 0.5s ease, visibility 0.5s ease;
    text-align: center;
}

.testimonial-slide.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.testimonial-quote {
    margin-bottom: 30px;
}

.testimonial-quote .quote-icon {
    font-size: 40px;
    color: rgba(var(--primary-rgb), 0.15);
    margin-bottom: 15px;
    display: block;
}

.testimonial-quote p {
    font-size: 20px;
    font-style: italic;
    font-weight: 500;
    line-height: 1.6;
    color: var(--text-primary);
}

.testimonial-author {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    text-align: left;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 16px;
    box-shadow: 0 4px 10px rgba(var(--primary-rgb), 0.3);
}

.author-1 { background-color: var(--primary); }
.author-2 { background-color: var(--secondary); }
.author-3 { background-color: var(--accent); }

.testimonial-author h4 {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 2px;
}

.testimonial-author p {
    font-size: 13px;
    color: var(--text-muted);
}

/* Dots */
.slider-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}

.slider-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border-color);
    cursor: pointer;
    transition: var(--transition-fast);
}

body.light-mode .slider-dots .dot {
    background-color: #cbd5e1;
}

.slider-dots .dot.active {
    width: 25px;
    border-radius: 10px;
    background-color: var(--primary);
}

/* 13. REGISTRATION FORM (GLASSMORPHISM) */
.registration-box {
    background: rgba(17, 24, 39, 0.5);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    display: flex;
    overflow: hidden;
    text-align: left;
    margin-top: 20px;
}

body.light-mode .registration-box {
    background: rgba(255, 255, 255, 0.7);
}

.registration-info {
    flex: 1;
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.registration-info h2 {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.registration-info p {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 40px;
}

.offer-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.offer-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.offer-item i {
    font-size: 20px;
    color: var(--accent);
    margin-top: 2px;
}

.offer-item h4 {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.offer-item p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 0;
}

.registration-form-card {
    flex: 1;
    background: rgba(15, 23, 42, 0.4);
    border-left: 1px solid var(--border-color);
    padding: 60px;
}

body.light-mode .registration-form-card {
    background: rgba(248, 250, 252, 0.3);
}

.registration-form-card h3 {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 10px;
}

.registration-form-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary);
    border-radius: 4px;
}

.form-group {
    margin-bottom: 22px;
    position: relative;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.input-wrapper {
    position: relative;
    width: 100%;
}

.input-wrapper i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 15px;
    transition: var(--transition-fast);
}

.input-wrapper input, .input-wrapper textarea, .input-wrapper select {
    width: 100%;
    padding: 13px 20px 13px 48px;
    background: rgba(255, 255, 255, 0.02);
    background-color: #1e293b;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 15px;
    transition: var(--transition-normal);
}

body.light-mode .input-wrapper input,
body.light-mode .input-wrapper textarea,
body.light-mode .input-wrapper select {
    background-color: #ffffff;
    color: #0f172a;
}

.input-wrapper select {
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%239ca3af%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 20px top 50%;
    background-size: 12px auto;
}

/* Fix native option colors for form select in dark mode */
.input-wrapper select option {
    background-color: #1e293b;
    color: #f1f5f9;
}

.input-wrapper select option:checked {
    background-color: #10b981;
    color: #ffffff;
}

body.light-mode .input-wrapper select option {
    background-color: #ffffff;
    color: #0f172a;
}

body.light-mode .input-wrapper select option:checked {
    background-color: #10b981;
    color: #ffffff;
}

.input-wrapper input:focus, .input-wrapper textarea:focus, .input-wrapper select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(var(--primary-rgb), 0.15);
    background: rgba(255, 255, 255, 0.04);
}

.input-wrapper input:focus + i, .input-wrapper textarea:focus + i, .input-wrapper select:focus + i {
    color: var(--primary);
}

/* Valid/Invalid validation styling */
.form-group.invalid .input-wrapper input,
.form-group.invalid .input-wrapper textarea {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.02);
}

.form-group.invalid .error-msg {
    display: block;
}

.error-msg {
    display: none;
    color: #ef4444;
    font-size: 11px;
    font-weight: 600;
    margin-top: 5px;
    padding-left: 5px;
}

.form-group textarea {
    padding: 15px 20px;
    resize: none;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #ffffff;
    font-weight: 700;
    font-size: 16px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.25);
    transition: var(--transition-normal);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.4);
}

/* 14. FOOTER */
.main-footer {
    background-color: #060910;
    border-top: 1px solid var(--border-color);
    padding: 80px 0 0 0;
    text-align: left;
}

body.light-mode .main-footer {
    background-color: #f1f5f9;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 60px 24px;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

body.light-mode .social-links a {
    background: rgba(0, 0, 0, 0.02);
}

.social-links a:hover {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 0 10px rgba(var(--primary-rgb), 0.3);
}

.footer-links-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links-group h4, .footer-contact h4 {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-links-group a {
    font-size: 14px;
    color: var(--text-secondary);
}

.footer-links-group a:hover {
    color: var(--primary);
    padding-left: 4px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact p {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.5;
}

.footer-contact p i {
    color: var(--primary);
    margin-top: 3px;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 30px 0;
}

.footer-bottom-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
}

/* 15. SUCCESS MODAL OVERLAY */
.success-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(2, 6, 23, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.success-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.success-modal {
    background: #0d1321;
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 500px;
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    text-align: center;
    transform: scale(0.9);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

body.light-mode .success-modal {
    background: #ffffff;
}

.success-modal-overlay.active .success-modal {
    transform: scale(1);
}

.success-icon-box {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    margin: 0 auto 24px auto;
    filter: drop-shadow(0 0 10px rgba(16, 185, 129, 0.2));
}

.success-modal h2 {
    font-family: var(--font-heading);
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 12px;
}

.success-modal p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 24px;
}

.modal-data-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 24px;
    text-align: left;
}

body.light-mode .modal-data-box {
    background: rgba(0, 0, 0, 0.01);
}

.modal-data-box p {
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.modal-data-box p:last-child {
    margin-bottom: 0;
}

.modal-data-box strong {
    color: var(--text-primary);
}

.success-modal .modal-tip {
    font-size: 12px;
    color: var(--text-muted);
    font-style: italic;
}

.modal-close-btn {
    width: 100%;
    padding: 13px;
    background: var(--primary);
    color: #ffffff;
    font-weight: 700;
    font-size: 15px;
    border-radius: 10px;
    transition: var(--transition-normal);
}

.modal-close-btn:hover {
    background: #059669;
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.3);
}

/* ==========================================================================
   16. RESPONSIVE DESIGN MEDIA QUERIES (MOBILE FIRST)
   ========================================================================== */

@media (max-width: 1024px) {
    .section {
        padding: 80px 0;
    }
    
    .hero-container {
        flex-direction: column;
        gap: 50px;
        text-align: center;
        max-width: 100%;
    }
    
    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

    .badge-1 {
        right: 0;
    }

    .badge-2 {
        left: 0;
    }

    .badge-3 {
        right: 16px;
    }
    
    .pathway-card {
        flex-direction: column;
        padding: 40px;
        gap: 40px;
    }
    
    .pathway-roadmap {
        width: 100%;
        border-left: none;
        border-top: 2px dashed var(--border-color);
        padding-left: 0;
        padding-top: 30px;
        flex-direction: row;
        gap: 30px;
    }
    
    .roadmap-step {
        flex: 1;
    }
    
    .roadmap-step .step-num {
        left: 0;
        top: -47px;
    }
    
    .calculator-box {
        flex-direction: column;
    }
    
    .calc-results {
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding: 50px;
        gap: 40px;
    }
    
    .registration-box {
        flex-direction: column;
    }
    
    .registration-form-card {
        border-left: none;
        border-top: 1px solid var(--border-color);
    }
    
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .section-container {
        padding-left: 20px;
        padding-right: 20px;
    }

    .hero-section {
        min-height: auto;
        padding: 130px 0 80px;
    }

    .hero-container {
        padding-left: 20px;
        padding-right: 20px;
    }

    .hero-tag {
        justify-content: center;
        flex-wrap: wrap;
        text-align: center;
        line-height: 1.4;
        letter-spacing: 0.6px;
    }

    .section-title {
        font-size: 32px;
    }
    
    .hero-title {
        font-size: 42px;
        max-width: 100%;
        overflow-wrap: break-word;
        letter-spacing: 0;
    }

    .tech-graphic-container {
        max-width: 100%;
    }

    .testimonial-slide {
        transform: translateX(0);
        padding: 0 4px;
    }
    
    .hero-stats {
        gap: 15px;
    }
    
    .stat-item h3 {
        font-size: 26px;
    }
    
    /* Sticky nav updates for mobile */
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--bg-surface-solid);
        flex-direction: column;
        padding: 40px 24px;
        gap: 30px;
        transition: var(--transition-normal);
        z-index: 999;
        overflow-y: auto;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        font-size: 18px;
        width: 100%;
        text-align: center;
        padding: 10px 0;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .hamburger-btn {
        display: flex;
    }
    
    .hamburger-btn.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .hamburger-btn.active .bar:nth-child(2) {
        opacity: 0;
    }
    .hamburger-btn.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .cta-nav-btn {
        display: none;
    }
    
    .nav-btn-mobile {
        display: block;
        width: 100%;
        padding: 14px;
        background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
        color: #ffffff !important;
        font-weight: 700;
        text-align: center;
        border-radius: 12px;
        font-size: 16px;
        margin-top: 20px;
    }
    
    .radio-tiles {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pathway-roadmap {
        flex-direction: column;
        gap: 50px;
    }
    
    .roadmap-step .step-num {
        top: -5px;
        left: -40px;
    }
    
    .pathway-roadmap {
        border-top: none;
        border-left: 2px dashed var(--border-color);
        padding-top: 0;
        padding-left: 30px;
    }
    
    .testimonial-slider {
        height: 380px;
    }
    
    .testimonial-quote p {
        font-size: 16px;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom-container {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 64px 0;
    }

    .section-container {
        padding-left: 18px;
        padding-right: 18px;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .section-title {
        font-size: 28px;
    }

    .section-desc {
        font-size: 15px;
        line-height: 1.6;
    }

    .ambient-glow {
        width: 260px;
        height: 260px;
        filter: blur(90px);
        opacity: 0.1;
    }

    .bg-glow-1 {
        left: -80px;
    }

    .bg-glow-2 {
        right: -90px;
    }

    .bg-glow-3 {
        left: 50%;
        transform: translateX(-50%);
    }

    .hero-section {
        padding: 118px 0 60px;
    }

    .hero-container {
        padding-left: 18px;
        padding-right: 18px;
        gap: 34px;
    }

    .hero-tag {
        font-size: 11px;
        padding: 6px 12px;
    }

    .hero-title {
        font-size: clamp(30px, 9vw, 34px);
        line-height: 1.15;
    }
    
    .hero-desc {
        font-size: 15px;
        line-height: 1.65;
    }
    
    .hero-ctas {
        flex-direction: column;
        width: 100%;
        gap: 15px;
    }
    
    .hero-btn {
        width: 100%;
        justify-content: center;
        padding-left: 20px;
        padding-right: 20px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .stat-divider {
        width: 60px;
        height: 1px;
    }
    
    .calc-inputs, .calc-results, .registration-info, .registration-form-card {
        padding: 30px 20px;
    }

    .btn-group-toggle {
        flex-direction: column;
    }

    .metric-row {
        flex-direction: column;
        gap: 4px;
        align-items: flex-start;
    }
    
    .radio-tiles {
        grid-template-columns: 1fr;
    }
    
    .pathway-card {
        padding: 24px 16px;
    }

    .pathway-info h3 {
        font-size: 24px;
    }

    .path-badge {
        width: 100%;
        justify-content: center;
        text-align: center;
    }

    .tech-graphic-container {
        height: 330px;
    }

    .code-box {
        height: 286px;
    }

    .code-box-body {
        padding: 16px;
        font-size: 12px;
    }

    .floating-badge {
        padding: 10px 12px;
        gap: 8px;
        border-radius: 12px;
        max-width: 170px;
    }

    .floating-badge h4 {
        font-size: 13px;
    }

    .floating-badge p {
        font-size: 11px;
    }

    .floating-badge i {
        font-size: 20px;
    }

    .badge-1 {
        right: 0;
    }

    .badge-2 {
        left: 0;
    }

    .badge-3 {
        right: 0;
    }
    
    .success-modal {
        padding: 30px 20px;
    }
}