/* ==========================================================================
   CODERSTUDIO PREMIUM DESIGN SYSTEM
   Colors:
   Primary:   #d9083c (Sleek Crimson)
   Secondary: #14171B (Deep Slate Black)
   Dark BG:   #0a0c0e (Ultra Dark)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    --primary: #d9083c;
    --primary-glow: rgba(217, 8, 60, 0.35);
    --primary-light: #ff2a5c;
    --secondary: #14171B;
    --dark-bg: #0a0c0e;
    --card-bg: rgba(20, 23, 27, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(217, 8, 60, 0.3);
    --text-primary: #ffffff;
    --text-secondary: #9ea8b6;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Outfit', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-elastic: all 0.6s cubic-bezier(0.68, -0.6, 0.32, 1.6);
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    cursor: none; /* Hide default cursor for custom cursor */
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--dark-bg);
}
::-webkit-scrollbar-thumb {
    background: #252a32;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Custom Cursor */
.custom-cursor {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s, background-color 0.2s;
}

.custom-cursor-follower {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(217, 8, 60, 0.5);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: transform 0.08s ease-out, width 0.3s, height 0.3s, background-color 0.3s, border-color 0.3s;
}

/* Hover States for Custom Cursor */
body.hovered .custom-cursor {
    width: 12px;
    height: 12px;
    background-color: #ffffff;
}

body.hovered .custom-cursor-follower {
    width: 60px;
    height: 60px;
    background: rgba(217, 8, 60, 0.1);
    border-color: var(--primary);
    transform: translate(-50%, -50%) scale(1.1);
}

.custom-cursor-follower::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0%;
    height: 0%;
    background: var(--primary);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: var(--transition-smooth);
    z-index: -1;
}

body.click-action .custom-cursor-follower {
    transform: translate(-50%, -50%) scale(0.8);
    border-color: #ffffff;
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--dark-bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 99999;
    transition: opacity 0.8s ease, visibility 0.8s;
}

.preloader-logo {
    width: 80px;
    height: 80px;
    border-radius: 16px;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 30px var(--primary-glow);
    animation: pulseLogo 2s infinite ease-in-out;
}

.preloader-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.preloader-bar {
    width: 200px;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    margin-bottom: 12px;
}

.preloader-progress {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transition: width 0.1s linear;
}

.preloader-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.preloader-percent {
    color: var(--primary);
}

@keyframes pulseLogo {
    0%, 100% { transform: scale(1); box-shadow: 0 0 20px var(--primary-glow); }
    50% { transform: scale(1.05); box-shadow: 0 0 40px var(--primary-glow); }
}

/* Background Gradients & Canvas */
.background-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.bg-glow-1 {
    position: fixed;
    top: -10%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(217, 8, 60, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: 0;
    pointer-events: none;
    filter: blur(80px);
    animation: floatGlow 15s infinite alternate ease-in-out;
}

.bg-glow-2 {
    position: fixed;
    bottom: -10%;
    left: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(20, 23, 27, 0.8) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: 0;
    pointer-events: none;
    filter: blur(80px);
}

@keyframes floatGlow {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-5%, 5%) scale(1.1); }
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 8%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: var(--transition-smooth);
    background: transparent;
    border-bottom: 1px solid transparent;
}

header.scrolled {
    padding: 12px 8%;
    background: rgba(10, 12, 14, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-color);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-img {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    object-fit: cover;
    border: 2px solid var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

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

nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    font-family: var(--font-body);
    transition: var(--transition-smooth);
    position: relative;
    padding: 8px 0;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-smooth);
}

nav ul li a:hover {
    color: var(--text-primary);
}

nav ul li a:hover::after {
    width: 100%;
}

.nav-buttons {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 10px 22px;
    border-radius: 30px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-primary {
    background: var(--primary);
    color: var(--text-primary);
    border: none;
    padding: 11px 26px;
    border-radius: 30px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px var(--primary-glow);
    z-index: 1;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--primary-light), var(--primary));
    opacity: 0;
    transition: var(--transition-smooth);
    z-index: -1;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-glow);
}

.btn-primary:hover::before {
    opacity: 1;
}

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

/* Mobile Menu Button */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    width: 30px;
    height: 24px;
    justify-content: space-between;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

/* Mobile-only elements hidden on desktop */
.nav-mobile-buttons,
.mobile-phone-btn,
.header-right-mobile {
    display: none;
}

/* Section Common Styles */
section {
    padding: 100px 8%;
    position: relative;
    z-index: 10;
}

.section-tag {
    color: var(--primary);
    text-transform: uppercase;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 2px;
    display: inline-block;
    margin-bottom: 12px;
    position: relative;
    padding-left: 24px;
}

.section-tag::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 2px;
    background: var(--primary);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.section-title span {
    background: linear-gradient(90deg, #ffffff 30%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 60px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    padding-top: 160px;
    padding-bottom: 80px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 15;
}

.hero-tag {
    background: rgba(217, 8, 60, 0.1);
    color: var(--primary);
    border: 1px solid rgba(217, 8, 60, 0.2);
    padding: 8px 16px;
    border-radius: 30px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 24px;
}

.hero-tag i {
    font-size: 0.75rem;
    animation: flash 1.5s infinite alternate;
}

@keyframes flash {
    0% { opacity: 0.3; }
    100% { opacity: 1; }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4.8rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

.hero-title span.accent {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.hero-desc {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 580px;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-bottom: 48px;
}

.btn-hero-primary {
    padding: 16px 36px;
    font-size: 1rem;
}

.btn-hero-secondary {
    padding: 15px 32px;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-hero-secondary i {
    transition: var(--transition-smooth);
}

.btn-hero-secondary:hover i {
    transform: translateX(4px);
    color: var(--primary);
}

.hero-metrics {
    display: flex;
    gap: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 32px;
}

.metric-item {
    display: flex;
    flex-direction: column;
}

.metric-num {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.metric-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Interactive IDE Visualizer (Hero Right) */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
}

.ide-window {
    width: 100%;
    max-width: 500px;
    background: var(--secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(217, 8, 60, 0.1);
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transform: perspective(1000px) rotateY(-8deg) rotateX(4deg);
    transition: var(--transition-smooth);
}

.ide-window:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg) translateY(-8px);
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5), 0 0 50px rgba(217, 8, 60, 0.2);
}

.ide-header {
    background: rgba(10, 12, 14, 0.5);
    padding: 12px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.ide-dots {
    display: flex;
    gap: 8px;
}

.ide-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.ide-dot.red { background: #ff5f56; }
.ide-dot.yellow { background: #ffbd2e; }
.ide-dot.green { background: #27c93f; }

.ide-title {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: monospace;
}

.ide-body {
    padding: 20px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    background: rgba(10, 12, 14, 0.3);
    min-height: 280px;
}

.ide-line {
    display: flex;
    gap: 16px;
}

.line-num {
    color: #4b5263;
    text-align: right;
    width: 20px;
    user-select: none;
}

.line-code {
    color: #abb2bf;
    white-space: pre-wrap;
}

.c-kw { color: #c678dd; } /* keyword */
.c-fn { color: #61afef; } /* function */
.c-str { color: #98c379; } /* string */
.c-var { color: #e06c75; } /* variable */
.c-op { color: #56b6c2; } /* operator */
.c-com { color: #5c6370; font-style: italic; } /* comment */

.ide-footer {
    padding: 12px 20px;
    background: rgba(10, 12, 14, 0.6);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ide-status {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-indicator {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #27c93f;
    animation: flash 1s infinite alternate;
}

.btn-run {
    background: var(--primary);
    color: #ffffff;
    border: none;
    border-radius: 4px;
    padding: 6px 14px;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-smooth);
}

.btn-run:hover {
    background: var(--primary-light);
    transform: scale(1.05);
}

/* Floating Card inside Hero Visual */
.floating-badge {
    position: absolute;
    background: rgba(20, 23, 27, 0.85);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 12;
}

.floating-badge.badge-1 {
    bottom: -15px;
    left: -20px;
    animation: floatBadge1 6s infinite alternate ease-in-out;
}

.floating-badge.badge-2 {
    top: 40px;
    right: -25px;
    animation: floatBadge2 8s infinite alternate ease-in-out;
}

.badge-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(217, 8, 60, 0.1);
    border: 1px solid rgba(217, 8, 60, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
}

.badge-info {
    display: flex;
    flex-direction: column;
}

.badge-title {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.badge-value {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
}

@keyframes floatBadge1 {
    0% { transform: translateY(0) rotate(-2deg); }
    100% { transform: translateY(-15px) rotate(1deg); }
}

@keyframes floatBadge2 {
    0% { transform: translateY(0) rotate(1deg); }
    100% { transform: translateY(12px) rotate(-3deg); }
}

/* Scroll Down Mouse */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.7;
    transition: var(--transition-smooth);
}

.scroll-indicator:hover {
    opacity: 1;
}

.mouse-scroller {
    width: 20px;
    height: 32px;
    border: 2px solid var(--text-secondary);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}

.mouse-scroller-dot {
    width: 4px;
    height: 8px;
    background-color: var(--primary);
    border-radius: 2px;
    animation: scrollScroll 1.5s infinite ease-in-out;
}

@keyframes scrollScroll {
    0% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(6px); opacity: 0.3; }
    100% { transform: translateY(0); opacity: 1; }
}

/* Features Grid (Why CoderStudio) */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    gap: 20px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    transform-style: preserve-3d;
    transform: perspective(1000px);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(400px circle at var(--mouse-x, 0) var(--mouse-y, 0), rgba(217, 8, 60, 0.1), transparent 40%);
    z-index: 1;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 30px rgba(217, 8, 60, 0.05);
}

.feature-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    transition: var(--transition-smooth);
}

.feature-card:hover .feature-icon-wrapper {
    background: rgba(217, 8, 60, 0.1);
    border-color: var(--primary);
    transform: scale(1.1) translateZ(20px);
}

.feature-icon-wrapper i {
    font-size: 1.5rem;
    color: var(--text-primary);
    transition: var(--transition-smooth);
}

.feature-card:hover .feature-icon-wrapper i {
    color: var(--primary);
}

.feature-card-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    z-index: 2;
    transition: var(--transition-smooth);
}

.feature-card:hover .feature-card-title {
    transform: translateZ(15px);
}

.feature-card-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    z-index: 2;
    transition: var(--transition-smooth);
}

.feature-card:hover .feature-card-desc {
    transform: translateZ(10px);
    color: var(--text-primary);
}

.feature-link {
    text-decoration: none;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: auto;
    z-index: 2;
    transition: var(--transition-smooth);
}

.feature-link i {
    transition: var(--transition-smooth);
}

.feature-link:hover i {
    transform: translateX(4px);
}

/* Learning Pathway (Interactive Roadmap) */
.pathway-container {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    padding: 40px 0;
}

.pathway-line {
    position: absolute;
    left: 50%;
    top: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--border-color) 0%, var(--primary) 20%, var(--primary-light) 80%, var(--border-color) 100%);
    transform: translateX(-50%);
    z-index: 1;
}

.pathway-step {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-bottom: 80px;
    position: relative;
    z-index: 2;
}

.pathway-step:nth-child(even) {
    flex-direction: row-reverse;
}

.pathway-node {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--secondary);
    border: 3px solid var(--border-color);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
}

.pathway-step:hover .pathway-node {
    border-color: var(--primary);
    box-shadow: 0 0 20px var(--primary-glow);
    color: var(--primary);
    transform: translateX(-50%) scale(1.15);
}

.pathway-content-box {
    width: 44%;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: var(--transition-smooth);
}

.pathway-step:hover .pathway-content-box {
    border-color: var(--border-hover);
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.pathway-number {
    font-family: var(--font-heading);
    color: var(--primary);
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 8px;
    display: block;
}

.pathway-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.pathway-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Interactive Sandbox / Playground Section */
.playground-container {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 40px;
    align-items: stretch;
}

.playground-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.playground-tabs {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 32px 0;
}

.playground-tab {
    background: var(--secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition-smooth);
    text-align: left;
}

.playground-tab:hover {
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.02);
}

.playground-tab.active {
    border-color: var(--primary);
    background: rgba(217, 8, 60, 0.05);
}

.tab-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition-smooth);
}

.playground-tab.active .tab-icon {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
}

.tab-details {
    display: flex;
    flex-direction: column;
}

.tab-title {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
}

.tab-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.playground-visualizer {
    background: #0f1115;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.visualizer-header {
    background: var(--secondary);
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.visualizer-actions {
    display: flex;
    gap: 12px;
}

.visualizer-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-smooth);
}

.visualizer-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.visualizer-btn.btn-play {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
}

.visualizer-btn.btn-play:hover {
    background: var(--primary-light);
}

.visualizer-screen {
    flex: 1;
    min-height: 400px;
    position: relative;
    background: #0b0d10;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Animations inside Playground visualizer screen */
.visualization-item {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.visualization-item.active {
    opacity: 1;
    pointer-events: auto;
}

.canvas-playground {
    width: 100%;
    height: 100%;
}

.visualizer-console {
    background: #080a0c;
    border-top: 1px solid var(--border-color);
    padding: 16px 24px;
    font-family: monospace;
    font-size: 0.85rem;
    max-height: 120px;
    overflow-y: auto;
}

.console-line {
    margin-bottom: 6px;
    color: #a9b2c3;
}

.console-line span.success { color: #27c93f; }
.console-line span.info { color: #61afef; }
.console-line span.warning { color: #e5c07b; }
.console-line span.cmd { color: var(--primary); }

/* Premium Courses Section */
.courses-filter {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 10px 24px;
    border-radius: 30px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.filter-btn:hover {
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.course-card {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.course-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.4), 0 0 30px rgba(217, 8, 60, 0.05);
    transform: translateY(-8px);
}

.course-img-wrapper {
    height: 200px;
    position: relative;
    overflow: hidden;
}

.course-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.course-card:hover .course-img {
    transform: scale(1.1);
}

.course-img-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 50%, rgba(10, 12, 14, 0.8) 100%);
}

.course-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--primary);
    color: #ffffff;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.course-duration {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: rgba(20, 23, 27, 0.8);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    color: var(--text-primary);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.course-content {
    padding: 30px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.course-instructor {
    display: flex;
    align-items: center;
    gap: 8px;
}

.instructor-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
}

.course-rating {
    display: flex;
    align-items: center;
    gap: 4px;
    color: #ffbd2e;
}

.course-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
    transition: var(--transition-smooth);
}

.course-title a {
    color: #ffffff;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.course-card:hover .course-title a {
    color: var(--primary);
}

.course-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 24px;
    line-height: 1.5;
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.course-price {
    display: flex;
    flex-direction: column;
}

.price-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.price-val {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--text-primary);
}

.course-salary {
    display: flex;
    flex-direction: column;
    text-align: right;
    margin-left: auto;
    margin-right: 20px;
}

.salary-label {
    font-size: 0.75rem;
    color: var(--primary);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.salary-val {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.4rem;
    color: #4ade80;
}

.course-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--secondary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: var(--transition-smooth);
    text-decoration: none;
}

.course-card:hover .course-link {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
    transform: rotate(-45deg);
}

/* ==========================================================================
   Interactive Course Additions (Search, Tech Badges, Syllabus Drawers)
   ========================================================================== */
.courses-search-container {
    width: 100%;
    max-width: 580px;
    margin: 0 auto 30px auto;
    position: relative;
    background: var(--secondary);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    padding: 8px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition-smooth);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    z-index: 20;
}

.courses-search-container:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 25px var(--primary-glow);
}

.courses-search-icon {
    color: var(--primary);
    font-size: 1.1rem;
}

.courses-search-input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    padding: 8px 0;
}

.courses-search-input::placeholder {
    color: var(--text-secondary);
}

.course-tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.course-tech-badge {
    background: rgba(217, 8, 60, 0.08);
    color: var(--primary-light);
    border: 1px solid rgba(217, 8, 60, 0.15);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition-smooth);
}

.course-card:hover .course-tech-badge {
    background: rgba(217, 8, 60, 0.15);
    border-color: var(--primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

.course-syllabus-toggle {
    background: transparent;
    border: 1px dashed var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
    padding: 10px 16px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    margin-bottom: 16px;
    transition: var(--transition-smooth);
}

.course-syllabus-toggle:hover {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.02);
    color: var(--primary-light);
}

.course-syllabus-toggle i {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.course-syllabus-toggle.active i {
    transform: rotate(180deg);
}

.course-syllabus-drawer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.16, 1, 0.3, 1), margin-bottom 0.5s ease;
    border-bottom: 0px solid transparent;
}

.course-syllabus-drawer.active {
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.syllabus-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 0 4px 20px 4px;
}

.syllabus-list li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition-smooth);
}

.syllabus-list li i {
    color: var(--primary);
    font-size: 0.7rem;
    transition: var(--transition-smooth);
}

.course-card:hover .syllabus-list li {
    color: var(--text-primary);
}

.course-card:hover .syllabus-list li i {
    transform: translateX(2px);
}

/* Statistics Grid Section */
.stats-section {
    background: linear-gradient(180deg, var(--dark-bg) 0%, rgba(21, 23, 27, 0.4) 50%, var(--dark-bg) 100%);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.stat-icon {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 8px;
    animation: bounceStat 4s infinite ease-in-out alternate;
}

@keyframes bounceStat {
    0% { transform: translateY(0); }
    100% { transform: translateY(-8px); }
}

.stat-count {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

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

.stat-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* Testimonial Section with Slider */
.testimonials-wrapper {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
    padding: 20px;
}

.testimonials-slider {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.testimonial-slide {
    min-width: 100%;
    padding: 20px;
}

.testimonial-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 50px;
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 40px;
    align-items: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
}

.testimonial-quote-icon {
    position: absolute;
    top: 40px;
    right: 40px;
    font-size: 4rem;
    color: rgba(217, 8, 60, 0.05);
    font-family: var(--font-heading);
    user-select: none;
}

.testimonial-avatar-wrapper {
    position: relative;
    width: 100%;
    max-width: 220px;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 1;
    border: 2px solid var(--border-color);
}

.testimonial-slide:hover .testimonial-avatar-wrapper {
    border-color: var(--primary);
    box-shadow: 0 0 25px var(--primary-glow);
}

.testimonial-avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.testimonial-info {
    display: flex;
    flex-direction: column;
}

.testimonial-rating {
    color: #ffbd2e;
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
}

.testimonial-text {
    font-size: 1.15rem;
    line-height: 1.7;
    margin-bottom: 24px;
    color: var(--text-primary);
    font-style: italic;
}

.testimonial-author {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 4px;
}

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

.slider-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 40px;
}

.slider-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: var(--transition-smooth);
}

.slider-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
}

.slider-dots {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transition: var(--transition-smooth);
}

.slider-dot.active {
    background: var(--primary);
    width: 24px;
    border-radius: 10px;
}

/* Call to Action Section */
.cta {
    padding: 100px 8%;
}

.cta-container {
    background: linear-gradient(135deg, var(--secondary) 0%, rgba(20, 23, 27, 0.6) 100%);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    padding: 80px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.cta-container::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(217, 8, 60, 0.15) 0%, transparent 60%);
    top: -200px;
    left: -200px;
    border-radius: 50%;
}

.cta-container::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(217, 8, 60, 0.15) 0%, transparent 60%);
    bottom: -200px;
    right: -200px;
    border-radius: 50%;
}

.cta-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

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

.cta-desc {
    color: var(--text-secondary);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto 40px auto;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Footer Section */
footer {
    background-color: #080a0c;
    border-top: 1px solid var(--border-color);
    padding: 80px 8% 40px 8%;
    position: relative;
    z-index: 10;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    max-width: 320px;
}

.footer-socials {
    display: flex;
    gap: 16px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: var(--transition-smooth);
    text-decoration: none;
}

.social-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
    transform: translateY(-3px);
}

.footer-col-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links li a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

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

.newsletter-form {
    display: flex;
    gap: 8px;
    background: var(--secondary);
    border: 1px solid var(--border-color);
    padding: 6px;
    border-radius: 30px;
    max-width: 300px;
}

.newsletter-input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    padding: 0 16px;
    flex: 1;
    font-family: var(--font-body);
    font-size: 0.9rem;
}

.newsletter-btn {
    background: var(--primary);
    color: #ffffff;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.newsletter-btn:hover {
    background: var(--primary-light);
    transform: scale(1.05);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 32px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    text-decoration: none;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
}

.footer-bottom-links a:hover {
    color: var(--primary);
}

/* Entrance Scroll Animation Utilities */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }
.reveal-delay-3 { transition-delay: 0.45s; }

/* Responsive Media Queries */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 140px;
    }
    .hero-desc {
        margin: 0 auto 40px auto;
    }
    .hero-actions {
        justify-content: center;
    }
    .hero-metrics {
        justify-content: center;
    }
    .hero-visual {
        margin-top: 40px;
    }
    .playground-container {
        grid-template-columns: 1fr;
        width: 100%;
        overflow: hidden;
    }
    .playground-info {
        text-align: center;
        width: 100%;
        overflow: hidden;
        min-width: 0;
    }
    .playground-tabs {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 10px;
        max-width: 100%;
        -webkit-overflow-scrolling: touch;
        -ms-overflow-style: none;
        scrollbar-width: none;
    }
    .playground-tabs::-webkit-scrollbar {
        display: none;
    }
    .playground-tab {
        flex: 0 0 auto;
        min-width: 220px;
    }
}

@media (max-width: 768px) {
    header {
        padding: 15px 5%;
    }
    header.scrolled {
        padding: 10px 5%;
    }
    .logo-img {
        width: 36px;
        height: 36px;
    }
    .logo-text {
        font-size: 1.25rem;
    }
    .nav-buttons {
        display: none !important;
    }
    .header-right-mobile {
        display: flex !important;
        align-items: center;
        gap: 12px;
        z-index: 1001;
    }
    .mobile-phone-btn {
        display: flex !important;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: rgba(217, 8, 60, 0.15);
        border: 1px solid rgba(217, 8, 60, 0.4);
        color: #ffffff;
        font-size: 1rem;
        box-shadow: 0 0 15px var(--primary-glow);
        transition: var(--transition-smooth);
        animation: phoneHeartbeat 2.5s infinite ease-in-out, borderPulse 3s infinite ease-in-out;
    }
    .mobile-phone-btn:hover {
        background: rgba(217, 8, 60, 0.25);
        border-color: var(--primary);
        color: var(--primary-light);
    }
    .nav-mobile-buttons {
        display: flex !important;
        flex-direction: column;
        gap: 14px;
        margin-top: 30px;
        width: 100%;
    }
    .nav-mobile-buttons .btn-secondary,
    .nav-mobile-buttons .btn-primary {
        width: 100%;
        padding: 12px 20px;
        font-size: 0.95rem;
        text-align: center;
        justify-content: center;
    }
    section {
        padding: 80px 5%;
    }
    .hero-title {
        font-size: 3.2rem;
    }
    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        background: #0d0f12;
        border-left: 1px solid var(--border-color);
        z-index: 999;
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: 60px 40px;
        transition: var(--transition-smooth);
    }
    nav.open {
        right: 0;
    }
    nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 30px;
        margin-bottom: 40px;
    }
    nav ul li a {
        font-size: 1.2rem;
    }
    .menu-toggle {
        display: flex;
        z-index: 1001;
    }
    .menu-toggle.open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 6px);
    }
    .menu-toggle.open span:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.open span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -6px);
    }
    .pathway-line {
        left: 20px;
    }
    .pathway-step {
        flex-direction: row !important;
        margin-bottom: 50px;
    }
    .pathway-node {
        left: 20px;
        transform: translateX(-50%);
    }
    .pathway-content-box {
        width: calc(100% - 50px);
        margin-left: auto;
    }
    .testimonial-card {
        grid-template-columns: 1fr;
        padding: 30px;
        text-align: center;
    }
    .testimonial-avatar-wrapper {
        margin: 0 auto;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.6rem;
    }
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .hero-metrics {
        flex-direction: column;
        gap: 20px;
    }
}

/* Direct Phone Call Highlights */
.btn-nav-phone, .btn-hero-phone, .btn-cta-phone {
    border-color: rgba(217, 8, 60, 0.4) !important;
    position: relative;
    overflow: hidden;
    animation: borderPulse 3s infinite ease-in-out;
}

.btn-nav-phone:hover, .btn-hero-phone:hover, .btn-cta-phone:hover {
    background: rgba(217, 8, 60, 0.1) !important;
    border-color: var(--primary) !important;
    box-shadow: 0 0 15px rgba(217, 8, 60, 0.4);
}

.btn-nav-phone i, .btn-hero-phone i, .btn-cta-phone i {
    animation: phoneHeartbeat 2.5s infinite ease-in-out;
    margin-right: 8px;
}

@keyframes borderPulse {
    0%, 100% {
        border-color: rgba(217, 8, 60, 0.4);
        box-shadow: 0 0 5px rgba(217, 8, 60, 0.1);
    }
    50% {
        border-color: rgba(217, 8, 60, 0.9);
        box-shadow: 0 0 15px rgba(217, 8, 60, 0.3);
    }
}

@keyframes phoneHeartbeat {
    0%, 100%, 20%, 80% {
        transform: scale(1);
    }
    10% {
        transform: scale(1.2) rotate(15deg);
    }
    30% {
        transform: scale(1.2) rotate(-15deg);
    }
}

/* Premium Floating WhatsApp FAB */
.whatsapp-fab {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff !important;
    font-size: 32px;
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4), 
                inset 0 2px 4px rgba(255, 255, 255, 0.2);
    z-index: 9999;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: waPulse 3s infinite ease-in-out;
}

.whatsapp-fab::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 1px solid rgba(37, 211, 102, 0.5);
    border-radius: 50%;
    animation: waRipple 2s infinite ease-out;
    pointer-events: none;
    z-index: -1;
}

.whatsapp-fab:hover {
    transform: translateY(-5px) scale(1.08);
    box-shadow: 0 12px 30px rgba(37, 211, 102, 0.6),
                0 0 20px rgba(37, 211, 102, 0.4);
    background: linear-gradient(135deg, #2ae771 0%, #15a191 100%);
}

.whatsapp-fab:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-10px);
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: rgba(10, 12, 14, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(37, 211, 102, 0.3);
    color: #ffffff;
    padding: 8px 16px;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateX(0);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    pointer-events: none;
}

/* Animations */
@keyframes waPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes waRipple {
    0% {
        transform: scale(1);
        opacity: 0.8;
    }
    100% {
        transform: scale(1.3);
        opacity: 0;
    }
}

/* Responsive Overrides */
@media (max-width: 768px) {
    .whatsapp-fab {
        bottom: 20px;
        right: 20px;
        width: 52px;
        height: 52px;
        font-size: 28px;
    }
    .whatsapp-tooltip {
        display: none;
    }
}

/* Document Page (Terms, Privacy, Security) Styling */
.document-section {
    padding: 160px 8% 100px 8%;
    min-height: 80vh;
    position: relative;
    z-index: 5;
}

.document-container {
    max-width: 900px;
    margin: 0 auto;
    background: rgba(10, 12, 14, 0.6);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 50px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.document-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-glow));
}

.document-title {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 12px;
    line-height: 1.2;
}

.document-subtitle {
    color: var(--primary);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    margin-bottom: 40px;
}

.document-content {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1.05rem;
}

.document-content h3 {
    font-family: var(--font-heading);
    color: #ffffff;
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 40px;
    margin-bottom: 20px;
}

.document-content p {
    margin-bottom: 24px;
}

.document-content ul {
    margin-bottom: 24px;
    padding-left: 20px;
    list-style-type: none;
}

.document-content ul li {
    margin-bottom: 12px;
    position: relative;
    padding-left: 24px;
}

.document-content ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* Security Matrix Specific Styling */
.matrix-table-wrapper {
    overflow-x: auto;
    margin: 40px 0;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.matrix-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.95rem;
    background: rgba(8, 10, 12, 0.4);
}

.matrix-table th, .matrix-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.matrix-table th {
    background: rgba(217, 8, 60, 0.08);
    color: #ffffff;
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.matrix-table tr:last-child td {
    border-bottom: none;
}

.matrix-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.matrix-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.matrix-badge.high {
    background: rgba(217, 8, 60, 0.15);
    color: #ff3366;
    border: 1px solid rgba(217, 8, 60, 0.3);
}

.matrix-badge.mid {
    background: rgba(255, 189, 46, 0.15);
    color: #ffbd2e;
    border: 1px solid rgba(255, 189, 46, 0.3);
}

.matrix-badge.low {
    background: rgba(37, 211, 102, 0.15);
    color: #25d366;
    border: 1px solid rgba(37, 211, 102, 0.3);
}

@media (max-width: 768px) {
    .document-section {
        padding: 120px 4% 60px 4%;
    }
    .document-container {
        padding: 30px 20px;
        border-radius: 16px;
    }
    .document-title {
        font-size: 2rem;
    }
    .matrix-table th, .matrix-table td {
        padding: 12px 14px;
        font-size: 0.85rem;
    }
}

/* Course Detail Page Styles */
.detail-hero {
    padding: 160px 8% 60px 8%;
    background: linear-gradient(180deg, rgba(217, 8, 60, 0.05) 0%, rgba(10, 12, 14, 0) 100%);
    position: relative;
    z-index: 5;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 24px;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    transition: var(--transition-smooth);
}

.back-link:hover {
    transform: translateX(-5px);
    color: #ffffff;
}

.detail-hero-content {
    max-width: 900px;
}

.detail-hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 20px;
    line-height: 1.1;
}

.detail-meta-list {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.detail-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-meta-item i {
    color: var(--primary);
}

.detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    padding: 0 8% 100px 8%;
    position: relative;
    z-index: 5;
}

.detail-main {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.detail-card-panel {
    background: rgba(10, 12, 14, 0.6);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 40px;
}

.detail-card-panel h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: #ffffff;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.syllabus-timeline {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 30px;
}

.syllabus-module {
    position: relative;
    padding-left: 30px;
    border-left: 2px solid var(--border-color);
}

.syllabus-module::before {
    content: '';
    position: absolute;
    left: -7px;
    top: 5px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

.syllabus-module-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: #ffffff;
    font-weight: 700;
    margin-bottom: 8px;
}

.detail-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.sidebar-widget {
    background: rgba(10, 12, 14, 0.8);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    position: relative;
}

.sidebar-widget::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-glow));
    border-radius: 20px 20px 0 0;
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.info-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

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

.info-val {
    color: #ffffff;
    font-weight: 700;
    font-size: 1rem;
    text-align: right;
}

.info-val.price {
    color: var(--primary);
    font-size: 1.25rem;
}

.tech-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.tech-tag {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
}

.sidebar-widget:has(.sidebar-form) {
    display: none;
}

.sidebar-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sidebar-form h3 {
    font-family: var(--font-heading);
    color: #ffffff;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.form-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    color: #ffffff;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(217, 8, 60, 0.2);
    outline: none;
}

@media (max-width: 992px) {
    .detail-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .detail-hero-title {
        font-size: 2.5rem;
    }
}