/* ========== Custom Properties ========== */
:root {
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --primary-light: #818cf8;
  --primary-50: #eef2ff;
  --primary-100: #e0e7ff;
  --primary-600: #4f46e5;
  --primary-700: #4338ca;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.04), 0 2px 4px rgba(0,0,0,0.03);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.06), 0 4px 10px rgba(0,0,0,0.03);
  --shadow-xl: 0 20px 50px rgba(0,0,0,0.08), 0 8px 20px rgba(0,0,0,0.04);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== Reset & Base ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial,
    sans-serif;
  color: var(--gray-800);
  background: #ffffff;
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* ========== Navbar ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
}

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

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
}

.navbar-logo i {
  font-size: 1.6rem;
  color: var(--primary-600);
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: color var(--transition);
  position: relative;
}

.navbar-links a:hover {
  color: var(--primary-600);
}

.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary-600);
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform var(--transition);
}

.navbar-links a:hover::after {
  transform: scaleX(1);
}

.navbar-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  background: var(--primary-600);
  color: #fff !important;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.navbar-cta:hover {
  background: var(--primary-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.navbar-cta::after {
  display: none !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--gray-800);
  border-radius: 2px;
  transition: all var(--transition);
}

.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 nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.mobile-nav.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav a {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--gray-800);
  transition: color var(--transition);
}

.mobile-nav a:hover {
  color: var(--primary-600);
}

/* ========== Hero Section ========== */
.hero {
  padding: 140px 24px 100px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #f5f3ff 0%, #ffffff 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -300px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.06) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.04) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-50);
  color: var(--primary-600);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
  border: 1px solid var(--primary-100);
}

.hero-badge i {
  font-size: 0.8rem;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.2;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
}

.hero-title span {
  background: linear-gradient(135deg, var(--primary-600), #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--gray-500);
  line-height: 1.7;
  margin: 0 0 36px;
  max-width: 520px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary-600);
  color: #fff;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
  background: var(--primary-700);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.4);
}

.btn-secondary {
  background: #fff;
  color: var(--gray-800);
  border: 1.5px solid var(--gray-200);
}

.btn-secondary:hover {
  border-color: var(--primary-300);
  color: var(--primary-600);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hero-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero-image img {
  width: 100%;
  border-radius: var(--radius-xl);
}

/* ========== Section Common ========== */
.section {
  padding: 100px 24px;
}

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

.section-label {
  display: inline-block;
  color: var(--primary-600);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--gray-900);
  margin: 0 0 16px;
  line-height: 1.25;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--gray-500);
  line-height: 1.7;
  margin: 0;
}

/* ========== Features ========== */
.features {
  background: #fff;
}

.features-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-100);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--primary-50);
  margin-bottom: 20px;
}

.feature-icon i {
  font-size: 1.6rem;
  color: var(--primary-600);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--gray-900);
  margin: 0 0 10px;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--gray-500);
  line-height: 1.65;
  margin: 0;
}

/* ========== Stats ========== */
.stats {
  background: var(--gray-50);
}

.stats-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-600);
  margin: 0 0 8px;
  line-height: 1.2;
}

.stat-item p {
  font-size: 0.95rem;
  color: var(--gray-500);
  margin: 0;
}

.stat-suffix {
  font-size: 1.5rem;
  color: var(--primary-400);
}

/* ========== Testimonials ========== */
.testimonials {
  background: #fff;
}

.testimonials-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.testimonial-stars {
  color: #f59e0b;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin: 0 0 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--primary-100);
  flex-shrink: 0;
}

.testimonial-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial-author h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gray-800);
  margin: 0 0 2px;
}

.testimonial-author p {
  font-size: 0.82rem;
  color: var(--gray-400);
  margin: 0;
}

/* ========== FAQ ========== */
.faq {
  background: var(--gray-50);
}

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

.faq-item {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.faq-item.active {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-100);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-800);
  gap: 16px;
  user-select: none;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.faq-question:hover {
  color: var(--primary-600);
}

.faq-toggle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition), transform var(--transition);
}

.faq-toggle i {
  font-size: 0.7rem;
  color: var(--gray-600);
  transition: transform var(--transition);
}

.faq-item.active .faq-toggle {
  background: var(--primary-50);
}

.faq-item.active .faq-toggle i {
  transform: rotate(180deg);
  color: var(--primary-600);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

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

.faq-answer p {
  padding: 0 24px 20px;
  margin: 0;
  font-size: 0.95rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ========== CTA Section ========== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-600) 0%, #4338ca 100%);
  padding: 100px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.cta-section h2 {
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  margin: 0 0 16px;
  line-height: 1.25;
}

.cta-section p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  margin: 0 0 36px;
  line-height: 1.6;
}

.btn-light {
  background: #fff;
  color: var(--primary-600);
  padding: 16px 36px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.cta-note {
  font-size: 0.85rem !important;
  color: rgba(255, 255, 255, 0.55) !important;
  margin-top: 16px !important;
}

/* ========== Footer ========== */
.footer {
  background: var(--gray-900);
  color: #fff;
  padding: 64px 24px 32px;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-brand h3 i {
  color: var(--primary-light);
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--gray-400);
  margin: 0 0 20px;
  line-height: 1.6;
}

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

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--gray-400);
  font-size: 0.95rem;
  transition: all var(--transition);
}

.footer-social a:hover {
  background: var(--primary-600);
  color: #fff;
  transform: translateY(-2px);
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  font-size: 0.88rem;
  color: var(--gray-400);
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--gray-500);
  margin: 0;
}

/* ========== Page Hero (About & Contact) ========== */
.page-hero {
  padding: 140px 24px 80px;
  background: linear-gradient(180deg, #f5f3ff 0%, #ffffff 100%);
  text-align: center;
}

.page-hero h1 {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--gray-900);
  margin: 0 0 16px;
}

.page-hero p {
  font-size: 1.1rem;
  color: var(--gray-500);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ========== About Page ========== */
.about-content {
  padding: 0 24px 100px;
}

.about-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 100px;
}

.about-story img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.about-story h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--gray-900);
  margin: 0 0 16px;
}

.about-story p {
  font-size: 1rem;
  color: var(--gray-500);
  line-height: 1.75;
  margin: 0;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 100px;
}

.about-value-card {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
}

.about-value-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--primary-50);
  margin-bottom: 16px;
}

.about-value-icon i {
  font-size: 1.4rem;
  color: var(--primary-600);
}

.about-value-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gray-900);
  margin: 0 0 8px;
}

.about-value-card p {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.6;
  margin: 0;
}

/* ========== Team Section ========== */
.team {
  max-width: 1100px;
  margin: 0 auto 100px;
}

.team h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--gray-900);
  text-align: center;
  margin: 0 0 48px;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.team-card {
  text-align: center;
}

.team-card img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  box-shadow: var(--shadow-md);
}

.team-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin: 0 0 4px;
}

.team-card p {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin: 0;
}

/* ========== Contact Page ========== */
.contact-section {
  padding: 0 24px 100px;
}

.contact-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
}

.contact-info h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--gray-900);
  margin: 0 0 16px;
}

.contact-info > p {
  font-size: 1rem;
  color: var(--gray-500);
  margin: 0 0 36px;
  line-height: 1.7;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 24px;
}

.contact-detail-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-50);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-detail-icon i {
  font-size: 1.05rem;
  color: var(--primary-600);
}

.contact-detail h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gray-800);
  margin: 0 0 4px;
}

.contact-detail p {
  font-size: 0.9rem;
  color: var(--gray-500);
  margin: 0;
}

.contact-form {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--gray-800);
  background: var(--gray-50);
  transition: border-color var(--transition), box-shadow var(--transition);
  font-family: inherit;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-400);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
  background: #fff;
}

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

/* ========== Back to Top ========== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-600);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 998;
  font-size: 1rem;
}

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

.back-to-top:hover {
  background: var(--primary-700);
  transform: translateY(-3px);
}

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

  .hero-desc {
    max-width: 100%;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-image {
    max-width: 500px;
    margin: 0 auto;
  }

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

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

  .about-story {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 768px) {
  .navbar-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-nav {
    display: flex;
  }

  .hero {
    padding: 120px 24px 60px;
  }

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

  .hero-desc {
    font-size: 1rem;
  }

  .section {
    padding: 60px 24px;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .features-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

  .cta-section h2 {
    font-size: 1.7rem;
  }

  .about-values,
  .team-grid {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 28px;
  }

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

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

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

/* ========== Animations ========== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}