/* ============================================================
   Blue Whale Ocean Technology - Custom Styles
   Theme: Deep Blue #1e3a5f + Bright Cyan #06b6d4
   ============================================================ */

:root {
  --deep-blue: #1e3a5f;
  --deep-blue-dark: #152c4a;
  --deep-blue-light: #2a5080;
  --bright-cyan: #06b6d4;
  --bright-cyan-light: #22d3ee;
  --bright-cyan-dark: #0891b2;
  --white: #ffffff;
  --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;
  --gray-900: #0f172a;
  --transition-base: all 0.3s ease;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.15);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.2);
  --shadow-cyan: 0 4px 20px rgba(6,182,212,0.3);
}

/* ============================================================
   Base & Global
   ============================================================ */

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

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

body {
  font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  color: var(--gray-700);
  background-color: var(--gray-50);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================================
   Wave SVG Backgrounds
   ============================================================ */

.wave-section {
  position: relative;
  overflow: hidden;
}

.wave-section::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 80px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 120' preserveAspectRatio='none'%3E%3Cpath fill='%23f8fafc' d='M0,64L48,58.7C96,53,192,43,288,48C384,53,480,75,576,74.7C672,75,768,53,864,42.7C960,32,1056,32,1152,37.3C1248,43,1344,53,1392,58.7L1440,64L1440,120L1392,120C1344,120,1248,120,1152,120C1056,120,960,120,864,120C768,120,672,120,576,120C480,120,384,120,288,120C192,120,96,120,48,120L0,120Z'%3E%3C/path%3E%3C/svg%3E") repeat-x;
  background-size: 1440px 80px;
  z-index: 2;
  pointer-events: none;
}

.wave-section.wave-top::after {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  width: 100%;
  height: 80px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 120' preserveAspectRatio='none'%3E%3Cpath fill='%231e3a5f' d='M0,64L48,58.7C96,53,192,43,288,48C384,53,480,75,576,74.7C672,75,768,53,864,42.7C960,32,1056,32,1152,37.3C1248,43,1344,53,1392,58.7L1440,64L1440,120L1392,120C1344,120,1248,120,1152,120C1056,120,960,120,864,120C768,120,672,120,576,120C480,120,384,120,288,120C192,120,96,120,48,120L0,120Z'%3E%3C/path%3E%3C/svg%3E") repeat-x;
  background-size: 1440px 80px;
  transform: rotate(180deg);
  z-index: 2;
  pointer-events: none;
}

.wave-divider {
  position: relative;
  height: 80px;
  overflow: hidden;
}

.wave-divider svg {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 80px;
}

/* ============================================================
   Navbar
   ============================================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(30, 58, 95, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(6, 182, 212, 0.2);
  transition: var(--transition-base);
  padding: 0;
}

.navbar.scrolled {
  background: rgba(21, 44, 74, 0.98);
  box-shadow: var(--shadow-lg);
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.5px;
}

.navbar-brand .logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--bright-cyan), var(--bright-cyan-dark));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--white);
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.navbar-links a {
  display: block;
  padding: 8px 18px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 9999px;
  transition: var(--transition-base);
}

.navbar-links a:hover,
.navbar-links a.active {
  color: var(--white);
  background: rgba(6, 182, 212, 0.2);
}

.navbar-links a.btn-nav {
  background: linear-gradient(135deg, var(--bright-cyan), var(--bright-cyan-dark));
  color: var(--white);
  font-weight: 600;
  padding: 10px 24px;
  box-shadow: var(--shadow-cyan);
}

.navbar-links a.btn-nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.navbar-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition-base);
}

/* ============================================================
   Hero Section
   ============================================================ */

.hero {
  position: relative;
  background: linear-gradient(160deg, var(--deep-blue-dark) 0%, var(--deep-blue) 40%, var(--deep-blue-light) 100%);
  padding: 140px 0 120px;
  overflow: hidden;
  min-height: 85vh;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero-content h1 span {
  background: linear-gradient(135deg, var(--bright-cyan), var(--bright-cyan-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 36px;
  line-height: 1.8;
  max-width: 520px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 9999px;
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--bright-cyan), var(--bright-cyan-dark));
  color: var(--white);
  box-shadow: var(--shadow-cyan);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(6, 182, 212, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: var(--bright-cyan);
  background: rgba(6, 182, 212, 0.1);
  transform: translateY(-3px);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.1rem;
}

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

.hero-image .hero-card {
  width: 100%;
  max-width: 420px;
  aspect-ratio: 1;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 48px;
  border: 1px solid rgba(6, 182, 212, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-image .hero-card::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 52px;
  background: linear-gradient(135deg, var(--bright-cyan), transparent, var(--bright-cyan));
  opacity: 0.3;
  z-index: -1;
}

.hero-image .hero-card-inner {
  text-align: center;
  color: var(--white);
  z-index: 1;
}

.hero-image .hero-card-inner .icon-big {
  font-size: 5rem;
  color: var(--bright-cyan);
  margin-bottom: 12px;
  filter: drop-shadow(0 0 30px rgba(6, 182, 212, 0.5));
}

.hero-image .hero-card-inner .tagline {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 2px;
}

.hero-floating {
  position: absolute;
  width: 70px;
  height: 70px;
  border-radius: 24px;
  background: rgba(6, 182, 212, 0.15);
  backdrop-filter: blur(5px);
  border: 1px solid rgba(6, 182, 212, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--bright-cyan);
  animation: floatBubble 6s ease-in-out infinite;
}

.hero-floating:nth-child(2) {
  width: 55px;
  height: 55px;
  border-radius: 18px;
  top: 10%;
  right: 5%;
  animation-delay: 1.5s;
  font-size: 1.4rem;
}

.hero-floating:nth-child(3) {
  width: 60px;
  height: 60px;
  border-radius: 20px;
  bottom: 15%;
  left: 5%;
  animation-delay: 3s;
  font-size: 1.5rem;
}

@keyframes floatBubble {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33% { transform: translateY(-15px) rotate(2deg); }
  66% { transform: translateY(8px) rotate(-2deg); }
}

/* ============================================================
   Section Common
   ============================================================ */

.section {
  padding: 90px 0;
  position: relative;
}

.section-dark {
  background: var(--deep-blue);
  color: var(--white);
}

.section-light {
  background: var(--gray-50);
}

.section-white {
  background: var(--white);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--bright-cyan);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-dark .section-title {
  color: var(--white);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--gray-500);
  max-width: 600px;
  margin: 0 auto;
}

.section-dark .section-subtitle {
  color: rgba(255, 255, 255, 0.65);
}

/* ============================================================
   Features Section (3-col)
   ============================================================ */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--white);
  border-radius: 32px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--bright-cyan);
  border-radius: 4px 4px 0 0;
  opacity: 0;
  transition: var(--transition-base);
}

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

.feature-card:hover::after {
  opacity: 1;
  width: 100px;
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(30, 58, 95, 0.1));
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--bright-cyan);
  transition: var(--transition-base);
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, var(--bright-cyan), var(--bright-cyan-dark));
  color: var(--white);
  transform: scale(1.1) rotate(-5deg);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ============================================================
   Stats Section (Bubble/Circle Style)
   ============================================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-bubble {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.stat-circle {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(6, 182, 212, 0.3);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
  position: relative;
  animation: pulseBubble 4s ease-in-out infinite;
}

.stat-bubble:nth-child(2) .stat-circle { animation-delay: 0.5s; }
.stat-bubble:nth-child(3) .stat-circle { animation-delay: 1s; }
.stat-bubble:nth-child(4) .stat-circle { animation-delay: 1.5s; }

.stat-circle:hover {
  border-color: var(--bright-cyan);
  background: rgba(6, 182, 212, 0.15);
  transform: scale(1.1);
  box-shadow: 0 0 40px rgba(6, 182, 212, 0.25);
}

.stat-circle .stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--bright-cyan);
  line-height: 1;
}

.stat-circle .stat-suffix {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--bright-cyan);
}

.stat-label {
  margin-top: 16px;
  font-size: 1rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
}

@keyframes pulseBubble {
  0%, 100% { box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.2); }
  50% { box-shadow: 0 0 0 15px rgba(6, 182, 212, 0); }
}

/* ============================================================
   Testimonials Section (3 cards)
   ============================================================ */

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.testimonial-card {
  background: var(--white);
  border-radius: 32px;
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition-base);
  position: relative;
}

.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: 16px;
  right: 24px;
  font-size: 5rem;
  color: rgba(6, 182, 212, 0.1);
  font-family: serif;
  line-height: 1;
  pointer-events: none;
}

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

.testimonial-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 16px;
  border: 3px solid var(--bright-cyan);
}

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

.testimonial-card .stars {
  color: #f59e0b;
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.testimonial-card .quote {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 16px;
  font-style: italic;
}

.testimonial-card .author {
  font-weight: 700;
  color: var(--gray-900);
  font-size: 0.95rem;
}

.testimonial-card .author-role {
  font-size: 0.85rem;
  color: var(--gray-400);
}

/* ============================================================
   FAQ Accordion Section
   ============================================================ */

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--white);
  border-radius: 20px;
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: var(--transition-base);
}

.faq-item:hover {
  border-color: rgba(6, 182, 212, 0.3);
}

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

.faq-question {
  width: 100%;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--gray-800);
  text-align: left;
  transition: var(--transition-base);
}

.faq-question:hover {
  color: var(--bright-cyan-dark);
}

.faq-question .faq-icon {
  font-size: 1.2rem;
  color: var(--bright-cyan);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.active .faq-question {
  color: var(--bright-cyan-dark);
}

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

.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-inner {
  padding: 0 28px 22px;
  font-size: 0.95rem;
  color: var(--gray-500);
  line-height: 1.8;
}

/* ============================================================
   CTA Banner Section
   ============================================================ */

.cta-section {
  position: relative;
  background: linear-gradient(135deg, var(--deep-blue-dark), var(--deep-blue));
  padding: 80px 0;
  text-align: center;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 36px;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
  background: var(--gray-900);
  color: rgba(255, 255, 255, 0.7);
  padding: 70px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-col h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-col p {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 6px;
}

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

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

.footer-col ul li a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.55);
  transition: var(--transition-base);
}

.footer-col ul li a:hover {
  color: var(--bright-cyan);
  padding-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding: 24px 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ============================================================
   Page Header (Inner Pages)
   ============================================================ */

.page-header {
  background: linear-gradient(160deg, var(--deep-blue-dark) 0%, var(--deep-blue) 40%, var(--deep-blue-light) 100%);
  padding: 120px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.page-header h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.page-header .breadcrumb {
  position: relative;
  z-index: 1;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.6);
}

.page-header .breadcrumb a {
  color: var(--bright-cyan);
}

.page-header .breadcrumb span {
  margin: 0 8px;
}

/* ============================================================
   Download Page
   ============================================================ */

.download-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.download-card {
  background: var(--white);
  border-radius: 32px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.download-card.featured {
  border-color: var(--bright-cyan);
  box-shadow: var(--shadow-cyan);
  transform: scale(1.03);
}

.download-card.featured::before {
  content: '\63A8\8350';
  position: absolute;
  top: 16px;
  right: 16px;
  background: linear-gradient(135deg, var(--bright-cyan), var(--bright-cyan-dark));
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 9999px;
  z-index: 1;
}

.download-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.download-card.featured:hover {
  transform: scale(1.03) translateY(-8px);
}

.download-icon {
  width: 90px;
  height: 90px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(30, 58, 95, 0.1));
  border-radius: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--bright-cyan);
}

.download-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.download-card .version {
  font-size: 0.85rem;
  color: var(--gray-400);
  margin-bottom: 16px;
}

.download-card .file-info {
  font-size: 0.9rem;
  color: var(--gray-500);
  margin-bottom: 24px;
  line-height: 1.8;
}

/* ============================================================
   About Page
   ============================================================ */

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image-wrapper {
  position: relative;
}

.about-image {
  width: 100%;
  border-radius: 40px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
}

.about-image-wrapper .experience-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--bright-cyan), var(--bright-cyan-dark));
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--white);
  box-shadow: var(--shadow-cyan);
}

.experience-badge .years {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.experience-badge .text {
  font-size: 0.8rem;
  opacity: 0.9;
}

.about-text h3 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 16px;
}

.about-text p {
  font-size: 1rem;
  color: var(--gray-500);
  line-height: 1.9;
  margin-bottom: 20px;
}

.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 30px;
}

.about-value-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--gray-700);
  font-weight: 500;
}

.about-value-item i {
  color: var(--bright-cyan);
  font-size: 1.2rem;
}

/* ============================================================
   Contact Page
   ============================================================ */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-card {
  background: var(--white);
  border-radius: 24px;
  padding: 28px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition-base);
}

.contact-info-card:hover {
  border-color: var(--bright-cyan);
  box-shadow: var(--shadow-md);
}

.contact-info-card .contact-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(30, 58, 95, 0.1));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--bright-cyan);
  flex-shrink: 0;
}

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

.contact-info-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
}

.contact-form-wrapper {
  background: var(--white);
  border-radius: 32px;
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
}

.contact-form-wrapper h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 24px;
}

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

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  font-size: 0.95rem;
  border: 2px solid var(--gray-200);
  border-radius: 16px;
  background: var(--gray-50);
  color: var(--gray-800);
  transition: var(--transition-base);
  outline: none;
  font-family: inherit;
}

.form-control:focus {
  border-color: var(--bright-cyan);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
  background: var(--white);
}

textarea.form-control {
  resize: vertical;
  min-height: 140px;
}

/* ============================================================
   Responsive Design
   ============================================================ */

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

  .hero-content p {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }

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

  .hero-image {
    order: -1;
  }

  .hero-image .hero-card {
    max-width: 280px;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 30px;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }

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

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

  .about-image-wrapper {
    max-width: 450px;
    margin: 0 auto;
  }

  .download-cards {
    grid-template-columns: 1fr;
    max-width: 450px;
    margin: 0 auto;
  }

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

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  .navbar-links {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(21, 44, 74, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    transform: translateY(-110%);
    transition: transform 0.35s ease;
    border-bottom: 1px solid rgba(6, 182, 212, 0.2);
    z-index: 999;
  }

  .navbar-links.open {
    transform: translateY(0);
  }

  .navbar-links a {
    text-align: center;
    padding: 12px 20px;
    font-size: 1.05rem;
  }

  .navbar-toggle {
    display: flex;
  }

  .hero {
    padding: 110px 0 80px;
    min-height: auto;
  }

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

  .features-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .cta-content h2 {
    font-size: 1.8rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

  .stat-circle {
    width: 120px;
    height: 120px;
  }

  .stat-circle .stat-number {
    font-size: 1.6rem;
  }

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

  .contact-form-wrapper {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .hero-image .hero-card {
    max-width: 220px;
    border-radius: 36px;
  }

  .hero-content h1 {
    font-size: 1.7rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .stat-circle {
    width: 100px;
    height: 100px;
  }

  .stat-circle .stat-number {
    font-size: 1.4rem;
  }
}