/* ===== HackersCorn - Global Styles ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Syne:wght@400;500;600;700;800&display=swap');

:root {
  --bg: #0a0a0f;
  --primary: #ff4500;
  --secondary: #1a1a2e;
  --card-bg: #111118;
  --text: #e0e0e0;
  --text-muted: #8888a0;
  --accent-glow: rgba(255, 69, 0, 0.4);
  --accent-glow-light: rgba(255, 69, 0, 0.15);
  --border: rgba(255, 255, 255, 0.06);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --font-heading: 'Syne', sans-serif;
  --font-body: 'Inter', sans-serif;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) var(--bg);
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #ff5a1a; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ===== Loading Screen ===== */
.loader-screen {
  position: fixed; inset: 0; z-index: 10000;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.loader-screen.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-logo {
  font-family: var(--font-heading); font-size: 2.4rem; font-weight: 800;
  color: var(--primary);
  animation: pulse-glow 1.2s ease-in-out infinite;
}
.loader-logo span { color: var(--text); }

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed; bottom: 32px; right: 32px; z-index: 999;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--primary); color: #fff; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(20px); pointer-events: none;
  transition: var(--transition);
  box-shadow: 0 4px 24px var(--accent-glow);
}
.back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: all; }
.back-to-top:hover { transform: translateY(-3px); box-shadow: 0 8px 32px var(--accent-glow); }
.back-to-top svg { width: 22px; height: 22px; }

/* ===== Toast System ===== */
.toast-container {
  position: fixed; top: 24px; right: 24px; z-index: 10001;
  display: flex; flex-direction: column; gap: 12px;
}
.toast {
  padding: 16px 24px; border-radius: var(--radius-sm);
  background: var(--card-bg); border: 1px solid var(--border);
  color: var(--text); font-size: 0.9rem; min-width: 280px;
  display: flex; align-items: center; gap: 12px;
  animation: toast-in 0.4s ease;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}
.toast.success { border-left: 4px solid #22c55e; }
.toast.error { border-left: 4px solid #ef4444; }
.toast.info { border-left: 4px solid var(--primary); }
.toast.removing { animation: toast-out 0.3s ease forwards; }

/* ===== Navbar ===== */
.navbar {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  padding: 18px 0;
  transition: var(--transition);
  background: transparent;
}
.navbar.scrolled {
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.nav-container {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-heading); font-size: 1.5rem; font-weight: 800;
  color: var(--primary); text-decoration: none; letter-spacing: -0.5px;
}
.nav-logo span { color: var(--text); }
.nav-links { display: flex; gap: 36px; list-style: none; }
.nav-links a {
  color: var(--text-muted); text-decoration: none; font-size: 0.92rem;
  font-weight: 500; transition: var(--transition); position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--primary);
  transition: width 0.3s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-buttons { display: flex; gap: 12px; align-items: center; }
.btn {
  padding: 10px 24px; border-radius: 50px; font-family: var(--font-body);
  font-size: 0.9rem; font-weight: 600; cursor: pointer;
  transition: var(--transition); text-decoration: none;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: none; position: relative; overflow: hidden;
}
.btn-primary {
  background: var(--primary); color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover {
  background: #ff5a1a; transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}
.btn-outline {
  background: transparent; color: var(--text);
  border: 1.5px solid rgba(255, 255, 255, 0.15);
}
.btn-outline:hover {
  border-color: var(--primary); color: var(--primary);
  transform: translateY(-2px);
}
.btn-sweep::before {
  content: ''; position: absolute; top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.5s ease;
}
.btn-sweep:hover::before { left: 100%; }
.hamburger {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: 8px;
}
.hamburger span {
  width: 24px; height: 2px; background: var(--text);
  transition: var(--transition); border-radius: 2px;
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.mobile-menu {
  display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
  background: rgba(10, 10, 15, 0.98); z-index: 999;
  flex-direction: column; align-items: center; justify-content: center; gap: 32px;
  opacity: 0; visibility: hidden; transition: var(--transition);
}
.mobile-menu.active { opacity: 1; visibility: visible; }
.mobile-menu a {
  color: var(--text); text-decoration: none; font-family: var(--font-heading);
  font-size: 1.8rem; font-weight: 600; transition: var(--transition);
}
.mobile-menu a:hover { color: var(--primary); }

/* ===== Sections ===== */
.section {
  padding: 120px 24px; max-width: 1280px; margin: 0 auto;
}
.section-header {
  display: flex; align-items: center; gap: 16px; margin-bottom: 48px;
}
.section-header .accent-bar {
  width: 4px; height: 40px; background: var(--primary); border-radius: 4px;
}
.section-header h2 {
  font-family: var(--font-heading); font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700; color: #fff;
}
.section-header p {
  color: var(--text-muted); margin-top: 8px; font-size: 1.05rem;
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; padding: 120px 24px 80px;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.02) 0px, rgba(255,255,255,0.02) 1px, transparent 1px, transparent 60px),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.02) 0px, rgba(255,255,255,0.02) 1px, transparent 1px, transparent 60px);
  animation: grid-move 20s linear infinite;
}
.hero-orb {
  position: absolute; border-radius: 50%; filter: blur(80px); pointer-events: none;
}
.hero-orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(255,69,0,0.15), transparent 70%);
  top: -100px; right: -100px;
  animation: float-orb 8s ease-in-out infinite;
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(26,26,46,0.6), transparent 70%);
  bottom: -50px; left: -100px;
  animation: float-orb 10s ease-in-out infinite reverse;
}
.hero-orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(255,69,0,0.08), transparent 70%);
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  animation: float-orb 12s ease-in-out infinite;
}
.hero-content {
  text-align: center; max-width: 900px; position: relative; z-index: 2;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,69,0,0.1); border: 1px solid rgba(255,69,0,0.25);
  padding: 8px 20px; border-radius: 50px; margin-bottom: 32px;
  font-size: 0.85rem; color: var(--primary); font-weight: 500;
}
.hero-badge .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--primary);
  animation: pulse-dot 2s ease-in-out infinite;
}
.hero h1 {
  font-family: var(--font-heading); font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800; line-height: 1.1; color: #fff; margin-bottom: 24px;
  min-height: 1.2em;
}
.hero h1 .highlight { color: var(--primary); }
.hero h1 .typewriter-cursor {
  display: inline-block; width: 3px; height: 0.9em;
  background: var(--primary); margin-left: 4px;
  animation: blink-cursor 0.8s step-end infinite; vertical-align: text-bottom;
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem); color: var(--text-muted);
  max-width: 600px; margin: 0 auto 40px; opacity: 0;
  animation: fade-in-up 0.8s ease 1s forwards;
}
.hero-buttons {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
  opacity: 0; animation: fade-in-up 0.8s ease 1.3s forwards;
}
.hero-buttons .btn { padding: 14px 36px; font-size: 1rem; }
.scroll-indicator {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-muted); font-size: 0.8rem; opacity: 0;
  animation: fade-in 1s ease 2s forwards;
}
.scroll-indicator .arrow {
  width: 24px; height: 24px;
  animation: bounce-down 2s ease-in-out infinite;
}
#particles-canvas {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
}

/* ===== Stats ===== */
.stats-section { padding: 80px 24px; }
.stats-grid {
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.stat-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 36px 24px; text-align: center;
  transition: var(--transition);
}
.stat-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255,69,0,0.3);
  box-shadow: 0 8px 40px rgba(255,69,0,0.1);
}
.stat-number {
  font-family: var(--font-heading); font-size: 2.8rem; font-weight: 800;
  color: var(--primary); margin-bottom: 8px;
}
.stat-label { color: var(--text-muted); font-size: 0.95rem; font-weight: 500; }

/* ===== Course Cards ===== */
.courses-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.course-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px;
  transition: var(--transition); position: relative; overflow: hidden;
}
.course-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: linear-gradient(90deg, var(--primary), transparent);
  opacity: 0; transition: opacity 0.3s ease;
}
.course-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255,69,0,0.3);
  box-shadow: 0 12px 48px rgba(255,69,0,0.12);
}
.course-card:hover::before { opacity: 1; }
.course-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: rgba(255,69,0,0.1); display: flex;
  align-items: center; justify-content: center; margin-bottom: 20px;
}
.course-icon svg { width: 28px; height: 28px; color: var(--primary); }
.course-card h3 {
  font-family: var(--font-heading); font-size: 1.25rem; font-weight: 700;
  color: #fff; margin-bottom: 12px;
}
.course-card p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 20px; line-height: 1.6; }
.course-badge {
  display: inline-block; padding: 4px 14px; border-radius: 50px;
  font-size: 0.75rem; font-weight: 600; margin-bottom: 16px;
}
.badge-beginner { background: rgba(34,197,94,0.15); color: #22c55e; }
.badge-intermediate { background: rgba(59,130,246,0.15); color: #3b82f6; }
.badge-advanced { background: rgba(255,69,0,0.15); color: var(--primary); }
.course-card .btn { width: 100%; padding: 12px; font-size: 0.85rem; }

/* ===== Why Choose Us ===== */
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.feature-box {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 40px 32px; text-align: center;
  transition: var(--transition);
}
.feature-box:hover {
  transform: translateY(-6px);
  border-color: rgba(255,69,0,0.2);
  box-shadow: 0 8px 40px rgba(255,69,0,0.08);
}
.feature-icon {
  width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 24px;
  background: rgba(255,69,0,0.08); display: flex;
  align-items: center; justify-content: center;
}
.feature-icon svg { width: 32px; height: 32px; color: var(--primary); }
.feature-box h3 {
  font-family: var(--font-heading); font-size: 1.3rem; font-weight: 700;
  color: #fff; margin-bottom: 12px;
}
.feature-box p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }

/* ===== Testimonials ===== */
.testimonials-wrapper {
  overflow: hidden; position: relative;
}
.testimonials-track {
  display: flex; gap: 28px;
  animation: slide-testimonials 30s linear infinite;
}
.testimonial-card {
  min-width: 380px; background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px; flex-shrink: 0;
}
.testimonial-stars { display: flex; gap: 4px; margin-bottom: 16px; }
.testimonial-stars svg { width: 18px; height: 18px; color: #fbbf24; fill: #fbbf24; }
.testimonial-card p {
  color: var(--text-muted); font-size: 0.92rem; line-height: 1.7;
  margin-bottom: 20px; font-style: italic;
}
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #ff7849);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; color: #fff; font-size: 1rem;
}
.testimonial-name { font-weight: 600; color: #fff; font-size: 0.95rem; }
.testimonial-role { color: var(--text-muted); font-size: 0.8rem; }

/* ===== Pricing Cards ===== */
.pricing-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
  align-items: center;
}
.pricing-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 40px 32px; text-align: center;
  transition: var(--transition); position: relative;
}
.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 48px rgba(0,0,0,0.3);
}
.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 60px rgba(255,69,0,0.15);
  transform: scale(1.05);
}
.pricing-card.featured:hover { transform: scale(1.05) translateY(-6px); }
.pricing-label {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: #fff; padding: 4px 20px;
  border-radius: 50px; font-size: 0.78rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1px;
}
.pricing-card h3 {
  font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700;
  color: #fff; margin-bottom: 8px;
}
.pricing-card .price {
  font-family: var(--font-heading); font-size: 2.8rem; font-weight: 800;
  color: var(--primary); margin: 16px 0 4px;
}
.pricing-card .original-price {
  color: var(--text-muted); text-decoration: line-through; font-size: 1rem;
}
.pricing-card .save-badge {
  display: inline-block; background: rgba(34,197,94,0.15); color: #22c55e;
  padding: 4px 14px; border-radius: 50px; font-size: 0.78rem;
  font-weight: 600; margin: 8px 0 24px;
}
.pricing-features {
  list-style: none; text-align: left; margin-bottom: 32px;
}
.pricing-features li {
  padding: 10px 0; color: var(--text-muted); font-size: 0.9rem;
  display: flex; align-items: center; gap: 12px;
  border-bottom: 1px solid var(--border);
}
.pricing-features li:last-child { border-bottom: none; }
.pricing-features li svg { width: 18px; height: 18px; color: #22c55e; flex-shrink: 0; }
.pricing-card .btn { width: 100%; padding: 14px; font-size: 0.95rem; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius-sm); margin-bottom: 12px; overflow: hidden;
}
.faq-question {
  width: 100%; padding: 20px 24px; background: none; border: none;
  color: #fff; font-size: 1rem; font-weight: 600; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-body); text-align: left;
}
.faq-question svg {
  width: 20px; height: 20px; color: var(--primary);
  transition: transform 0.3s ease; flex-shrink: 0;
}
.faq-item.active .faq-question svg { transform: rotate(180deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-item.active .faq-answer { max-height: 300px; }
.faq-answer p { padding: 0 24px 20px; color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }

/* ===== Auth Pages ===== */
.auth-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 24px; position: relative;
}
.auth-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 48px 40px;
  width: 100%; max-width: 440px; position: relative; z-index: 2;
}
.auth-card .auth-logo {
  text-align: center; margin-bottom: 32px;
}
.auth-card .auth-logo a {
  font-family: var(--font-heading); font-size: 1.6rem; font-weight: 800;
  color: var(--primary); text-decoration: none;
}
.auth-card .auth-logo a span { color: var(--text); }
.auth-card h2 {
  font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700;
  color: #fff; text-align: center; margin-bottom: 8px;
}
.auth-card .auth-sub {
  text-align: center; color: var(--text-muted); font-size: 0.9rem;
  margin-bottom: 32px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 0.85rem; font-weight: 500;
  color: var(--text-muted); margin-bottom: 8px;
}
.input-wrapper {
  position: relative;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"] {
  width: 100%; padding: 14px 16px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  color: var(--text); font-size: 0.95rem; font-family: var(--font-body);
  transition: var(--transition); outline: none;
}
.form-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255,69,0,0.15);
}
.toggle-password {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; color: var(--text-muted);
  display: flex; align-items: center;
}
.toggle-password svg { width: 20px; height: 20px; }
.password-strength {
  height: 4px; border-radius: 4px; background: var(--border);
  margin-top: 8px; overflow: hidden;
}
.password-strength-bar {
  height: 100%; border-radius: 4px; width: 0;
  transition: width 0.3s ease, background 0.3s ease;
}
.auth-error {
  color: #ef4444; font-size: 0.85rem; text-align: center;
  margin-bottom: 16px; min-height: 20px;
}
.auth-card .btn { width: 100%; padding: 14px; font-size: 1rem; margin-top: 8px; }
.auth-footer {
  text-align: center; margin-top: 24px; color: var(--text-muted); font-size: 0.9rem;
}
.auth-footer a { color: var(--primary); text-decoration: none; font-weight: 600; }
.auth-footer a:hover { text-decoration: underline; }
.checkbox-group {
  display: flex; align-items: center; gap: 10px; margin-bottom: 20px;
}
.checkbox-group input[type="checkbox"] {
  width: 18px; height: 18px; accent-color: var(--primary); cursor: pointer;
}
.checkbox-group label { color: var(--text-muted); font-size: 0.85rem; cursor: pointer; }
.checkbox-group a { color: var(--primary); text-decoration: none; }
.spinner {
  display: inline-block; width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff; border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* ===== Footer ===== */
.footer {
  background: #07070c; border-top: 1px solid var(--border);
  padding: 80px 24px 32px;
}
.footer-grid {
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .nav-logo {
  display: inline-block; margin-bottom: 16px; font-size: 1.4rem;
}
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; max-width: 300px; }
.footer h4 {
  font-family: var(--font-heading); font-size: 1rem; font-weight: 700;
  color: #fff; margin-bottom: 20px;
}
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 12px; }
.footer ul a {
  color: var(--text-muted); text-decoration: none; font-size: 0.88rem;
  transition: color 0.3s ease;
}
.footer ul a:hover { color: var(--primary); }
.footer-contact p {
  color: var(--text-muted); font-size: 0.88rem; margin-bottom: 10px;
  display: flex; align-items: center; gap: 10px;
}
.footer-contact svg { width: 18px; height: 18px; color: var(--primary); flex-shrink: 0; }
.social-links { display: flex; gap: 12px; margin-top: 20px; }
.social-links a {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,0.05); display: flex;
  align-items: center; justify-content: center;
  transition: var(--transition); color: var(--text-muted);
}
.social-links a:hover {
  background: var(--primary); color: #fff; transform: translateY(-3px);
}
.social-links svg { width: 18px; height: 18px; }
.footer-bottom {
  max-width: 1280px; margin: 0 auto;
  border-top: 1px solid var(--border); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  color: var(--text-muted); font-size: 0.82rem;
}

/* ===== Search Bar (Products) ===== */
.search-container {
  max-width: 600px; margin: 0 auto 48px; position: relative;
}
.search-container input {
  width: 100%; padding: 16px 24px 16px 52px; border-radius: 50px;
  background: var(--card-bg); border: 1px solid var(--border);
  color: var(--text); font-size: 1rem; font-family: var(--font-body);
  outline: none; transition: var(--transition);
}
.search-container input:focus {
  border-color: var(--primary); box-shadow: 0 0 0 4px rgba(255,69,0,0.12);
}
.search-container svg {
  position: absolute; left: 20px; top: 50%; transform: translateY(-50%);
  width: 20px; height: 20px; color: var(--text-muted);
}

/* ===== Course Detail Modal ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 5000;
  background: rgba(0,0,0,0.8); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s ease;
  padding: 24px; overflow-y: auto;
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-content {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); max-width: 560px; width: 100%;
  max-height: 85vh; overflow-y: auto; padding: 40px;
  transform: translateY(20px); opacity: 0;
  transition: transform 0.35s ease, opacity 0.35s ease; position: relative;
  margin: auto;
}
.modal-overlay.active .modal-content { transform: translateY(0); opacity: 1; }
.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: rgba(255,255,255,0.05); border: none; border-radius: 50%;
  width: 36px; height: 36px; display: flex; align-items: center;
  justify-content: center; cursor: pointer; color: var(--text-muted);
  transition: var(--transition);
}
.modal-close:hover { background: rgba(255,69,0,0.2); color: var(--primary); }
.modal-close svg { width: 18px; height: 18px; }
.modal-icon {
  width: 64px; height: 64px; border-radius: 16px;
  background: rgba(255,69,0,0.1); display: flex;
  align-items: center; justify-content: center; margin-bottom: 20px;
}
.modal-icon svg { width: 32px; height: 32px; color: var(--primary); }
.modal-content h2 {
  font-family: var(--font-heading); font-size: 1.5rem;
  font-weight: 700; color: #fff; margin-bottom: 8px;
}
.modal-content .modal-desc {
  color: var(--text-muted); font-size: 0.92rem; line-height: 1.7;
  margin-bottom: 24px;
}
.modal-features {
  list-style: none; margin-bottom: 28px;
}
.modal-features li {
  padding: 10px 0; color: var(--text-muted); font-size: 0.88rem;
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid var(--border);
}
.modal-features li:last-child { border-bottom: none; }
.modal-features li svg { width: 16px; height: 16px; color: #22c55e; flex-shrink: 0; }
.modal-price {
  font-family: var(--font-heading); font-size: 2rem;
  font-weight: 800; color: var(--primary); margin-bottom: 4px;
}
.modal-original-price {
  color: var(--text-muted); text-decoration: line-through; font-size: 0.95rem;
  margin-bottom: 20px;
}
.modal-content .btn { width: 100%; padding: 14px; }

/* ===== Logged-in Avatar in Navbar ===== */
.nav-avatar-wrap { position: relative; display: flex; align-items: center; }
.nav-avatar-btn {
  width: 38px; height: 38px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #ff7849);
  border: none; cursor: pointer; display: flex;
  align-items: center; justify-content: center;
  font-weight: 700; color: #fff; font-size: 0.95rem;
  font-family: var(--font-heading); transition: var(--transition);
}
.nav-avatar-btn:hover { box-shadow: 0 0 20px var(--accent-glow); transform: scale(1.05); }
.nav-dropdown {
  position: absolute; top: calc(100% + 12px); right: 0;
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius-sm); min-width: 200px; padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(-10px);
  transition: var(--transition); z-index: 1001;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}
.nav-dropdown.active { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown-header {
  padding: 12px; border-bottom: 1px solid var(--border); margin-bottom: 8px;
}
.nav-dropdown-header .name { font-weight: 600; color: #fff; font-size: 0.9rem; }
.nav-dropdown-header .email { color: var(--text-muted); font-size: 0.78rem; overflow: hidden; text-overflow: ellipsis; }
.nav-dropdown a, .nav-dropdown button {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 10px 12px; border-radius: 8px; color: var(--text-muted);
  text-decoration: none; font-size: 0.86rem; background: none;
  border: none; cursor: pointer; font-family: var(--font-body);
  transition: var(--transition);
}
.nav-dropdown a:hover, .nav-dropdown button:hover {
  background: rgba(255,255,255,0.05); color: #fff;
}
.nav-dropdown .nav-logout-btn { color: #ef4444; border-top: 1px solid var(--border); margin-top: 8px; padding-top: 12px; }
.nav-dropdown .nav-logout-btn:hover { background: rgba(239,68,68,0.1); }
.nav-dropdown svg { width: 16px; height: 16px; flex-shrink: 0; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .courses-grid, .features-grid, .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-card.featured { transform: scale(1); }
  .pricing-card.featured:hover { transform: translateY(-6px); }
  .section-header h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
}
@media (max-width: 768px) {
  .nav-links, .nav-buttons { display: none; }
  .nav-avatar-wrap { display: flex !important; }
  .hamburger { display: flex; }
  .mobile-menu { display: flex; }
  .courses-grid, .features-grid, .pricing-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .section { padding: 80px 20px; }
  .testimonial-card { min-width: 280px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .auth-card { padding: 32px 24px; }
  .hero { padding: 100px 20px 60px; min-height: auto; }
  .hero-badge { font-size: 0.75rem; padding: 6px 14px; }
  .hero-sub { font-size: 0.9rem; margin-bottom: 28px; }
  .scroll-indicator { display: none; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .section-header .accent-bar { width: 40px; height: 4px; }
  .stat-card { padding: 24px 16px; }
  .stat-number { font-size: 2rem; }
  .course-card { padding: 24px; }
  .pricing-card { padding: 28px 20px; }
  .feature-box { padding: 28px 20px; }
  .mobile-menu a { font-size: 1.4rem; }
  .modal-content { padding: 28px 20px; max-height: 90vh; }
  .modal-content h2 { font-size: 1.2rem; }
  .modal-price { font-size: 1.6rem; }
  .modal-features li { font-size: 0.82rem; padding: 8px 0; }
  .modal-icon { width: 48px; height: 48px; margin-bottom: 16px; }
  .modal-icon svg { width: 24px; height: 24px; }
  .search-container { margin-bottom: 32px; }
  .search-container input { padding: 14px 20px 14px 46px; font-size: 0.9rem; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.8rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-buttons .btn { width: 100%; max-width: 280px; }
  .nav-container { padding: 0 16px; }
  .nav-logo { font-size: 1.2rem; }
  .section { padding: 60px 16px; }
  .testimonial-card { min-width: 260px; padding: 24px; }
  .course-card h3 { font-size: 1.1rem; }
  .pricing-card h3 { font-size: 1.2rem; }
  .pricing-card .price { font-size: 2.2rem; }
  .modal-overlay { padding: 16px; }
  .modal-content { padding: 24px 16px; max-height: 92vh; border-radius: 12px; }
  .modal-content h2 { font-size: 1.1rem; }
  .modal-desc { font-size: 0.85rem; }
  .modal-price { font-size: 1.4rem; }
  .modal-original-price { font-size: 0.85rem; }
  .modal-content .btn { padding: 12px; font-size: 0.9rem; }
  .auth-card { padding: 28px 20px; }
  .auth-card h2 { font-size: 1.3rem; }
  .footer { padding: 60px 16px 24px; }
}