/* ===== CSS Variables & Reset ===== */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --white: #ffffff;
  --success: #10b981;
  --gradient-1: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  --gradient-2: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: "Noto Sans TC", "Microsoft JhengHei", "PingFang TC", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--dark);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

ul, ol { list-style: none; }

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

.section-title {
  text-align: center;
  margin-bottom: 1rem;
  position: relative;
}

.section-subtitle {
  text-align: center;
  color: var(--gray-500);
  font-size: 1.125rem;
  max-width: 640px;
  margin: 0 auto 3rem;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient-1);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.5);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--accent);
  color: var(--dark);
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}

.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.5);
}

/* ===== Header / Navbar ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

.header.scrolled {
  border-bottom-color: var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-logo span {
  font-weight: 400;
  font-size: 0.85rem;
  display: block;
  background: none;
  -webkit-text-fill-color: var(--gray-500);
  line-height: 1.2;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-weight: 500;
  color: var(--gray-600);
  position: relative;
  padding: 0.25rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-1);
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  padding: 0.625rem 1.5rem !important;
  font-size: 0.9rem !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--dark);
  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);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 50%, #fef3c7 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--white);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
}

.hero-badge .pulse {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero h1 {
  margin-bottom: 1.5rem;
  color: var(--dark);
}

.hero h1 .highlight {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--gray-600);
  margin-bottom: 2rem;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
}

.hero-stat {
  text-align: center;
}

.hero-stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--gray-500);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-visual-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 440px;
  position: relative;
}

.hero-visual-card .icon-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hero-visual-card .icon-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0.5rem;
  background: var(--gray-50);
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: default;
}

.hero-visual-card .icon-item:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

.hero-visual-card .icon-item .emoji {
  font-size: 2rem;
}

.hero-visual-card .icon-item .label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-600);
  text-align: center;
}

.hero-visual-card .progress-bar {
  background: var(--gray-100);
  border-radius: 50px;
  height: 8px;
  overflow: hidden;
}

.hero-visual-card .progress-bar .fill {
  height: 100%;
  background: var(--gradient-1);
  border-radius: 50px;
  width: 0;
  animation: progressFill 2s ease-out forwards;
  animation-delay: 0.5s;
}

@keyframes progressFill {
  to { width: 78%; }
}

.hero-visual-floating {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius);
  padding: 0.75rem 1.25rem;
  box-shadow: var(--shadow-lg);
  font-size: 0.85rem;
  font-weight: 600;
  animation: float 3s ease-in-out infinite;
}

.hero-visual-floating.top-right {
  top: -10px;
  right: -20px;
  color: var(--success);
  animation-delay: 0s;
}

.hero-visual-floating.bottom-left {
  bottom: 20px;
  left: -30px;
  color: var(--primary);
  animation-delay: 1s;
}

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

/* ===== Features Section ===== */
.features {
  padding: 6rem 0;
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-1);
  transform: scaleX(0);
  transition: var(--transition);
}

.feature-card:hover {
  background: var(--white);
  border-color: var(--gray-200);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  border-radius: var(--radius);
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  margin-bottom: 0.75rem;
  color: var(--dark);
}

.feature-card p {
  color: var(--gray-500);
  font-size: 0.95rem;
}

/* ===== Courses Section ===== */
.courses {
  padding: 6rem 0;
  background: var(--gray-50);
}

.course-filter {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid var(--gray-300);
  background: var(--white);
  color: var(--gray-600);
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.course-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.course-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
}

.course-card-img {
  height: 180px;
  background: var(--gradient-1);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.course-card-img .course-emoji {
  font-size: 4rem;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

.course-card-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--accent);
  color: var(--dark);
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
}

.course-card-body {
  padding: 1.5rem;
}

.course-card-body h3 {
  margin-bottom: 0.5rem;
  font-size: 1.15rem;
}

.course-card-body p {
  color: var(--gray-500);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-100);
}

.course-card-meta .duration {
  font-size: 0.85rem;
  color: var(--gray-400);
}

.course-card-meta .level {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  background: var(--primary-light);
  color: var(--primary);
}

/* ===== Trainer Section ===== */
.trainer {
  padding: 6rem 0;
  background: var(--white);
}

.trainer-content {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 4rem;
  align-items: center;
}

.trainer-img {
  position: relative;
}

.trainer-img .avatar-photo {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.trainer-img .badge-card {
  position: absolute;
  bottom: -10px;
  right: -10px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  box-shadow: var(--shadow-lg);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-dark);
}

.trainer-info h2 {
  margin-bottom: 0.5rem;
}

.trainer-info .role {
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.trainer-info .bio {
  color: var(--gray-600);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.trainer-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--gray-50);
  border-radius: var(--radius);
}

.highlight-item .num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
}

.highlight-item .text {
  font-size: 0.85rem;
  color: var(--gray-600);
}

/* ===== Testimonials ===== */
.testimonials {
  padding: 6rem 0;
  background: var(--gray-50);
}

.testimonial-slider {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.testimonial-stars {
  color: var(--accent);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.testimonial-text {
  color: var(--gray-600);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  line-height: 1.7;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.testimonial-author .avatar-sm {
  width: 44px;
  height: 44px;
  background: var(--gradient-1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
}

.testimonial-author .name {
  font-weight: 600;
  font-size: 0.9rem;
}

.testimonial-author .company {
  font-size: 0.8rem;
  color: var(--gray-400);
}

/* ===== FAQ Section ===== */
.faq {
  padding: 6rem 0;
  background: var(--white);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--primary);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  text-align: left;
  font-family: inherit;
  transition: var(--transition);
}

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

.faq-question .icon {
  font-size: 1.25rem;
  transition: var(--transition);
  color: var(--primary);
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-item.active .faq-question .icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 1.5rem 1.25rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* ===== Contact Section ===== */
.contact {
  padding: 6rem 0;
  background: var(--gray-50);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-grid-single {
  grid-template-columns: 1fr;
  max-width: 600px;
  margin: 0 auto;
}

.contact-info h3 {
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--gray-600);
  margin-bottom: 2rem;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--white);
  border-radius: var(--radius);
  transition: var(--transition);
}

.contact-method:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.contact-method .icon-box {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  border-radius: var(--radius);
  font-size: 1.25rem;
}

.contact-method .info .label {
  font-size: 0.8rem;
  color: var(--gray-400);
}

.contact-method .info .value {
  font-weight: 600;
  color: var(--dark);
}

.contact-form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--white);
}

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

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* ===== SEO Description Section ===== */
.seo-section {
  padding: 5rem 0;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
}

.seo-section .container {
  max-width: 900px;
}

.seo-content h2 {
  text-align: left;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  color: var(--dark);
}

.seo-content h3 {
  text-align: left;
  font-size: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--dark-2);
}

.seo-content p {
  color: var(--gray-600);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.seo-content ul {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.seo-content ul li {
  list-style: disc;
  color: var(--gray-600);
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.seo-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.seo-content table thead {
  background: var(--dark);
  color: var(--white);
}

.seo-content table th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
}

.seo-content table td {
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--gray-200);
  color: var(--gray-600);
  line-height: 1.6;
}

.seo-content table tbody tr:hover {
  background: var(--gray-50);
}

@media (max-width: 768px) {
  .seo-content table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .seo-content table th,
  .seo-content table td {
    min-width: 120px;
    font-size: 0.82rem;
    padding: 0.5rem 0.75rem;
  }
}

/* ===== Footer ===== */
.footer {
  background: var(--gradient-2);
  color: var(--gray-300);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 3rem;
}

.footer-brand .logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  color: var(--gray-300);
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.footer-col h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 1.25rem;
}

.footer-col a {
  display: block;
  color: var(--gray-400);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--white);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 1.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.footer-bottom a {
  color: var(--gray-400);
}

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

/* ===== Scroll to Top ===== */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--gradient-1);
  color: var(--white);
  border: none;
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 99;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

/* ===== Blog Page ===== */
.page-hero {
  padding: 10rem 0 4rem;
  background: var(--gradient-2);
  color: var(--white);
  text-align: center;
}

.page-hero h1 {
  margin-bottom: 1rem;
}

.page-hero p {
  color: var(--gray-400);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.blog-section {
  padding: 4rem 0 6rem;
  background: var(--gray-50);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

a.blog-card {
  display: block;
  color: inherit;
}

.blog-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

.blog-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
}

.blog-card-img {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
}

.blog-card-img .tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--white);
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
}

.blog-card-body {
  padding: 1.5rem;
}

.blog-card-body .date {
  font-size: 0.8rem;
  color: var(--gray-400);
  margin-bottom: 0.5rem;
}

.blog-card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  color: var(--dark);
  transition: var(--transition);
}

.blog-card:hover .blog-card-body h3 {
  color: var(--primary);
}

.blog-card-body p {
  font-size: 0.9rem;
  color: var(--gray-500);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 1rem;
}

.blog-card-body .read-more {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.blog-card-body .read-more:hover {
  gap: 0.5rem;
}

/* ===== Blog Article Page ===== */
.article-section {
  padding: 2rem 0 4rem;
  background: var(--gray-50);
}

.article-container {
  max-width: 800px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.article-hero-img {
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--white);
}

.article-body {
  padding: 3rem;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.article-meta .tag {
  background: var(--primary-light);
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
}

.article-meta .date {
  font-size: 0.85rem;
  color: var(--gray-400);
}

.article-meta .author {
  font-size: 0.85rem;
  color: var(--gray-500);
}

.article-body h1 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin-bottom: 1.5rem;
  line-height: 1.4;
  color: var(--dark);
}

.article-body h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--dark);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-light);
}

.article-body h3 {
  font-size: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--dark-2);
}

.article-body p {
  color: var(--gray-600);
  margin-bottom: 1.25rem;
  line-height: 1.9;
  font-size: 1.05rem;
}

.article-body ul,
.article-body ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.article-body ul li,
.article-body ol li {
  list-style: disc;
  color: var(--gray-600);
  margin-bottom: 0.5rem;
  line-height: 1.8;
  font-size: 1.05rem;
}

.article-body ol li {
  list-style: decimal;
}

.article-body strong {
  color: var(--dark);
}

.article-body blockquote {
  border-left: 4px solid var(--primary);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  background: var(--gray-50);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.article-body blockquote p {
  margin-bottom: 0;
  font-style: italic;
  color: var(--gray-700);
}

.article-cta {
  margin-top: 3rem;
  padding: 2rem;
  background: var(--primary-light);
  border-radius: var(--radius);
  text-align: center;
}

.article-cta p {
  color: var(--dark) !important;
  margin-bottom: 1rem !important;
  font-weight: 500;
}

.article-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 3rem;
  border-top: 1px solid var(--gray-200);
}

.article-nav a {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
}

.article-nav a:hover {
  color: var(--primary-dark);
}

@media (max-width: 768px) {
  .article-body {
    padding: 1.5rem;
  }
  .article-nav {
    padding: 1.5rem;
    flex-direction: column;
    gap: 1rem;
  }
  .article-hero-img {
    height: 200px;
    font-size: 3.5rem;
  }
}

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-desc { margin: 0 auto 2rem; }
  .hero-buttons { justify-content: center; }
  .hero-stats { justify-content: center; }

  .hero-visual {
    display: none;
  }

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

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

  .trainer-img {
    max-width: 300px;
    margin: 0 auto;
  }

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

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--white);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .hamburger {
    display: flex;
  }

  .features-grid,
  .courses-grid,
  .testimonial-slider,
  .blog-grid {
    grid-template-columns: 1fr;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }

  .trainer-highlights {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }
}

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

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}