/* ============================================================
   DroneAir Design System — Public Site
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Colors */
  --color-bg-primary: #0a0e1a;
  --color-bg-secondary: #111827;
  --color-bg-tertiary: #1a2236;
  --color-bg-card: rgba(26, 34, 54, 0.6);
  --color-bg-glass: rgba(17, 24, 39, 0.7);

  --color-text-primary: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;

  --color-accent: #38bdf8;
  --color-accent-hover: #7dd3fc;
  --color-accent-glow: rgba(56, 189, 248, 0.3);

  --color-cyan: #22d3ee;
  --color-emerald: #34d399;
  --color-violet: #a78bfa;
  --color-amber: #fbbf24;
  --color-rose: #fb7185;

  --gradient-primary: linear-gradient(135deg, #38bdf8 0%, #a78bfa 50%, #fb7185 100%);
  --gradient-accent: linear-gradient(135deg, #38bdf8 0%, #22d3ee 100%);
  --gradient-card: linear-gradient(145deg, rgba(56, 189, 248, 0.05) 0%, rgba(167, 139, 250, 0.05) 100%);
  --gradient-hero: radial-gradient(ellipse at 20% 50%, rgba(56, 189, 248, 0.15) 0%, transparent 50%),
                   radial-gradient(ellipse at 80% 20%, rgba(167, 139, 250, 0.1) 0%, transparent 50%),
                   radial-gradient(ellipse at 50% 80%, rgba(251, 113, 133, 0.05) 0%, transparent 50%);

  /* Borders */
  --border-subtle: 1px solid rgba(148, 163, 184, 0.1);
  --border-accent: 1px solid rgba(56, 189, 248, 0.3);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.15);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --nav-height: 72px;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  overflow-x: hidden;
}

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

a:hover {
  color: var(--color-accent-hover);
}

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

ul, ol {
  list-style: none;
}

/* --- Utility Classes --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-accent {
  color: var(--color-accent);
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(56, 189, 248, 0.2); }
  50% { box-shadow: 0 0 40px rgba(56, 189, 248, 0.4); }
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes orbit {
  from { transform: rotate(0deg) translateX(120px) rotate(0deg); }
  to { transform: rotate(360deg) translateX(120px) rotate(-360deg); }
}

.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);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: var(--border-subtle);
  transition: background var(--transition-base);
}

.nav.scrolled {
  background: rgba(10, 14, 26, 0.95);
  box-shadow: var(--shadow-md);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.nav__logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-text-primary);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: all var(--transition-base);
  transform: translateX(-50%);
  border-radius: var(--radius-full);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 70%;
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.55rem 1.2rem;
  background: var(--gradient-accent);
  color: var(--color-bg-primary);
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
}

.nav__cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
  color: var(--color-bg-primary);
}

/* Mobile Menu Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero__bg-elements {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero__bg-elements::before {
  content: '';
  position: absolute;
  top: 20%;
  right: 10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite;
}

.hero__bg-elements::after {
  content: '';
  position: absolute;
  bottom: 10%;
  left: 5%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 10s ease-in-out infinite reverse;
}

.hero__grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  animation: fadeInUp 0.8s ease;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.4rem 1rem;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: var(--space-xl);
  letter-spacing: 0.03em;
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-emerald);
  border-radius: 50%;
  animation: pulse-glow 2s ease-in-out infinite;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.hero__subtitle {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 560px;
}

.hero__actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero__visual {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  width: 480px;
  height: 480px;
  z-index: 1;
}

.hero__visual-ring {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(56, 189, 248, 0.1);
  border-radius: 50%;
  animation: orbit 20s linear infinite;
}

.hero__visual-ring:nth-child(2) {
  inset: 40px;
  border-color: rgba(167, 139, 250, 0.08);
  animation-duration: 15s;
  animation-direction: reverse;
}

.hero__visual-ring:nth-child(3) {
  inset: 80px;
  border-color: rgba(251, 113, 133, 0.06);
  animation-duration: 25s;
}

.hero__visual-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  line-height: 1;
}

.btn--primary {
  background: var(--gradient-accent);
  color: var(--color-bg-primary);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  color: var(--color-bg-primary);
}

.btn--secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.btn--secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.btn--lg {
  padding: 0.9rem 2.2rem;
  font-size: 1.05rem;
}

.btn__icon {
  font-size: 1.1em;
  transition: transform var(--transition-fast);
}

.btn:hover .btn__icon {
  transform: translateX(3px);
}

/* --- Sections --- */
.section {
  padding: var(--space-4xl) 0;
  position: relative;
}

.section--alt {
  background: var(--color-bg-secondary);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-md);
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

.section__subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- Feature Cards Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.feature-card {
  position: relative;
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  backdrop-filter: blur(10px);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--transition-slow);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.2);
  box-shadow: var(--shadow-lg);
}

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

.feature-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.feature-card__icon--blue {
  background: rgba(56, 189, 248, 0.1);
  color: var(--color-accent);
}

.feature-card__icon--violet {
  background: rgba(167, 139, 250, 0.1);
  color: var(--color-violet);
}

.feature-card__icon--emerald {
  background: rgba(52, 211, 153, 0.1);
  color: var(--color-emerald);
}

.feature-card__icon--amber {
  background: rgba(251, 191, 36, 0.1);
  color: var(--color-amber);
}

.feature-card__icon--rose {
  background: rgba(251, 113, 133, 0.1);
  color: var(--color-rose);
}

.feature-card__icon--cyan {
  background: rgba(34, 211, 238, 0.1);
  color: var(--color-cyan);
}

.feature-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.feature-card__desc {
  color: var(--color-text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* --- Stats Section --- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  padding: var(--space-3xl) 0;
}

.stat {
  text-align: center;
  padding: var(--space-xl);
}

.stat__number {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat__label {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* --- Product Card --- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-2xl);
}

.product-card {
  background: var(--color-bg-card);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-slow);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: rgba(56, 189, 248, 0.2);
}

.product-card__image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background: var(--gradient-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}

.product-card__body {
  padding: var(--space-xl);
}

.product-card__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.25rem 0.7rem;
  background: rgba(56, 189, 248, 0.1);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.product-card__title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.product-card__desc {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: var(--space-lg);
}

.product-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-accent);
}

.product-card__link:hover {
  gap: var(--space-sm);
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  padding: var(--space-4xl) 0;
  position: relative;
}

.cta-section__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(56, 189, 248, 0.1) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 50%, rgba(167, 139, 250, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.cta-section__content {
  position: relative;
  z-index: 2;
}

.cta-section__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.cta-section__desc {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Footer --- */
.footer {
  border-top: var(--border-subtle);
  padding: var(--space-3xl) 0 var(--space-xl);
  background: var(--color-bg-secondary);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer__brand-desc {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-top: var(--space-md);
  max-width: 300px;
}

.footer__heading {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__link {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-text-primary);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-xl);
  border-top: var(--border-subtle);
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.footer__socials {
  display: flex;
  gap: var(--space-md);
}

.footer__social {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(148, 163, 184, 0.05);
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
  font-size: 1rem;
}

.footer__social:hover {
  background: rgba(56, 189, 248, 0.1);
  color: var(--color-accent);
}

/* --- Contact Form --- */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-bg-tertiary);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

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

/* --- Page Header --- */
.page-header {
  padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-3xl);
  text-align: center;
  background: var(--gradient-hero);
  position: relative;
}

.page-header__title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.page-header__subtitle {
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto;
}

/* --- About Page --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about-content h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.about-content p {
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

.about-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 350px;
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  font-size: 6rem;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-xl);
}

.team-card {
  text-align: center;
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--transition-slow);
}

.team-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.2);
}

.team-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-accent);
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-bg-primary);
}

.team-card__name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.team-card__role {
  font-size: 0.85rem;
  color: var(--color-accent);
}

/* --- Contact Info --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.contact-item__icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(56, 189, 248, 0.1);
  border-radius: var(--radius-md);
  font-size: 1.2rem;
}

.contact-item__label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.2rem;
}

.contact-item__value {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-xl);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
  }

  .nav__links.open {
    transform: translateX(0);
  }

  .nav__toggle {
    display: flex;
  }

  .nav__link {
    font-size: 1.2rem;
  }

  .hero {
    min-height: auto;
    padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-3xl);
  }

  .hero__visual {
    display: none;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

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

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

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

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

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

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .stats {
    grid-template-columns: 1fr;
  }

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