/* ===================================================
   TerraMarc — Design System & Styles
   Dark/Light Theme Support
   =================================================== */

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

/* ===================================================
   THEME VARIABLES
   =================================================== */
:root {
  /* ---- Shared accent palette (teal/cyan from logo) ---- */
  --accent-1: #14b8a6;
  --accent-2: #06b6d4;
  --accent-3: #0ea5e9;
  --gradient-accent: linear-gradient(135deg, var(--accent-1), var(--accent-2), var(--accent-3));

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- DARK THEME (default) ---- */
[data-theme="dark"] {
  --bg-primary: #050a15;
  --bg-secondary: #0a1128;
  --bg-card: rgba(15, 25, 50, 0.6);
  --bg-card-hover: rgba(20, 35, 65, 0.7);
  --bg-surface: rgba(5, 10, 21, 0.85);
  --bg-mobile-nav: rgba(5, 10, 21, 0.97);

  --text-primary: #e8ecf4;
  --text-secondary: #8b9ac0;
  --text-muted: #5a6a8a;
  --text-strong: #ffffff;

  --border-color: rgba(138, 160, 200, 0.08);
  --border-glow: rgba(20, 184, 166, 0.2);

  --accent-glow: rgba(20, 184, 166, 0.15);
  --accent-glow-strong: rgba(20, 184, 166, 0.3);

  --btn-primary-text: #050a15;
  --btn-outline-bg: transparent;
  --btn-outline-hover: rgba(20, 184, 166, 0.1);

  --orb-1: rgba(20, 184, 166, 0.3);
  --orb-2: rgba(6, 182, 212, 0.25);
  --orb-3: rgba(14, 165, 233, 0.2);
  --grid-line: rgba(20, 184, 166, 0.03);

  --shadow-card: 0 4px 30px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(20, 184, 166, 0.08);

  --gradient-bg: linear-gradient(180deg, #050a15 0%, #0a1128 50%, #071020 100%);

  --hamburger-color: var(--text-primary);

  color-scheme: dark;
}

/* ---- LIGHT THEME ---- */
[data-theme="light"] {
  --bg-primary: #f5f7fb;
  --bg-secondary: #edf0f7;
  --bg-card: rgba(255, 255, 255, 0.7);
  --bg-card-hover: rgba(255, 255, 255, 0.9);
  --bg-surface: rgba(245, 247, 251, 0.92);
  --bg-mobile-nav: rgba(245, 247, 251, 0.97);

  --text-primary: #1a2236;
  --text-secondary: #4a5568;
  --text-muted: #7a8599;
  --text-strong: #0a1128;

  --border-color: rgba(20, 30, 60, 0.08);
  --border-glow: rgba(20, 184, 166, 0.25);

  --accent-glow: rgba(20, 184, 166, 0.08);
  --accent-glow-strong: rgba(20, 184, 166, 0.16);

  --btn-primary-text: #ffffff;
  --btn-outline-bg: transparent;
  --btn-outline-hover: rgba(20, 184, 166, 0.06);

  --orb-1: rgba(20, 184, 166, 0.12);
  --orb-2: rgba(6, 182, 212, 0.10);
  --orb-3: rgba(14, 165, 233, 0.08);
  --grid-line: rgba(20, 184, 166, 0.04);

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-glow: 0 0 30px rgba(20, 184, 166, 0.06);

  --gradient-bg: linear-gradient(180deg, #f5f7fb 0%, #edf0f7 50%, #f0f3fa 100%);

  --hamburger-color: var(--text-primary);

  color-scheme: light;
}

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

body {
  font-family: var(--font-family);
  background: var(--gradient-bg);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background 0.4s ease, color 0.4s ease;
}

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

ul {
  list-style: none;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Gradient Text ---- */
.gradient-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---- Section Common ---- */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-1);
  margin-bottom: 16px;
  position: relative;
  padding-left: 36px;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

.section-title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  color: var(--text-strong);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 56px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  padding: 14px 32px;
  transition: all var(--transition-normal);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--gradient-accent);
  color: var(--btn-primary-text);
  box-shadow: 0 4px 20px rgba(20, 184, 166, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(20, 184, 166, 0.45);
}

.btn--primary svg {
  transition: transform var(--transition-fast);
}

.btn--primary:hover svg {
  transform: translateX(4px);
}

.btn--outline {
  background: var(--btn-outline-bg);
  color: var(--text-primary);
  border: 1.5px solid var(--border-glow);
  backdrop-filter: blur(4px);
}

.btn--outline:hover {
  background: var(--btn-outline-hover);
  border-color: var(--accent-1);
  transform: translateY(-2px);
}

.btn--small {
  padding: 10px 22px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn--accent {
  background: var(--gradient-accent);
  color: var(--btn-primary-text);
  border: none;
}

.btn--accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(20, 184, 166, 0.4);
}

.btn--large {
  padding: 18px 40px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

/* ---- Reveal Animation ---- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================================
   THEME TOGGLE BUTTON
   =================================================== */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1.5px solid var(--border-color);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition-normal);
  position: relative;
}

.theme-toggle:hover {
  border-color: var(--border-glow);
  color: var(--accent-1);
  background: var(--accent-glow);
  transform: rotate(15deg);
}

.theme-toggle__icon {
  position: absolute;
  transition: opacity 0.3s ease, transform 0.4s ease;
}

/* Dark mode: show moon, hide sun */
[data-theme="dark"] .theme-toggle__sun {
  opacity: 0;
  transform: scale(0.5) rotate(-90deg);
}

[data-theme="dark"] .theme-toggle__moon {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

/* Light mode: show sun, hide moon */
[data-theme="light"] .theme-toggle__sun {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

[data-theme="light"] .theme-toggle__moon {
  opacity: 0;
  transform: scale(0.5) rotate(90deg);
}

/* ===================================================
   NAVBAR
   =================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: var(--bg-surface);
  backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 0;
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar__logo-img {
  height: 80px;
  width: auto;
  transition: height var(--transition-normal), filter var(--transition-normal);
}

.navbar.scrolled .navbar__logo-img {
  height: 64px;
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.navbar__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.navbar__links a:not(.btn):hover {
  color: var(--text-primary);
}

.navbar__links a:not(.btn)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 1px;
  transition: width var(--transition-normal);
}

.navbar__links a:not(.btn):hover::after {
  width: 100%;
}

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

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 1001;
}

.navbar__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--hamburger-color);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

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

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

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

/* ===================================================
   HERO
   =================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  animation: orbFloat 12s ease-in-out infinite;
  transition: background 0.5s ease;
}

.hero__gradient-orb--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--orb-1), transparent 70%);
  top: -15%;
  right: -10%;
  animation-delay: 0s;
}

.hero__gradient-orb--2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--orb-2), transparent 70%);
  bottom: -10%;
  left: -5%;
  animation-delay: -4s;
}

.hero__gradient-orb--3 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, var(--orb-3), transparent 70%);
  top: 40%;
  left: 50%;
  animation-delay: -8s;
}

@keyframes orbFloat {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  33% {
    transform: translate(30px, -30px) scale(1.05);
  }

  66% {
    transform: translate(-20px, 20px) scale(0.95);
  }
}

.hero__grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 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: 1;
  text-align: center;
  max-width: 880px;
}

.hero__badge {
  display: inline-block;
  padding: 8px 20px;
  border-radius: 100px;
  background: var(--accent-glow);
  border: 1px solid var(--border-glow);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-1);
  margin-bottom: 28px;
}

.hero__headline {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
  color: var(--text-strong);
}

.hero__subhead {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero__cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

/* Hero Stats */
.hero__stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  padding: 28px 40px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  transition: background 0.4s ease, border-color 0.4s ease;
}

.hero__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__stat-number {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}

.hero__stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border-color);
}

/* Scroll Indicator */
.hero__scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-1), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {

  0%,
  100% {
    opacity: 1;
    transform: scaleY(1);
  }

  50% {
    opacity: 0.3;
    transform: scaleY(0.6);
  }
}

/* ===================================================
   ABOUT SECTION
   =================================================== */
.about {
  padding: 120px 0;
  position: relative;
}

.about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-glow), transparent);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
  margin-top: 40px;
}

.about__text p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 1.05rem;
  line-height: 1.8;
}

.about__text strong {
  color: var(--text-primary);
}

.about__highlights {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about__highlight-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  backdrop-filter: blur(8px);
}

.about__highlight-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateX(6px);
  box-shadow: var(--shadow-glow);
}

.about__highlight-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--accent-glow);
  color: var(--accent-1);
}

.about__highlight-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.about__highlight-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ===================================================
   SERVICES SECTION
   =================================================== */
.services {
  padding: 120px 0;
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-glow), transparent);
}

.services__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

/* Service Card */
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  backdrop-filter: blur(12px);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.service-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}

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

.service-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.service-card__number {
  font-size: 3rem;
  font-weight: 900;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  opacity: 0.6;
}

.service-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--accent-glow);
  color: var(--accent-1);
}

.service-card__title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
  color: var(--text-strong);
}

.service-card__desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 28px;
}

.service-card__features {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.service-card__features li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.service-card__feature-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--accent-glow);
  color: var(--accent-2);
}

.service-card__features strong {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.service-card__features span {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ===================================================
   WHY US SECTION
   =================================================== */
.why-us {
  padding: 120px 0;
  position: relative;
}

.why-us::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-glow), transparent);
}

.why-us__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.why-us__card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  backdrop-filter: blur(12px);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.why-us__card-glow {
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow-strong), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.why-us__card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.why-us__card:hover .why-us__card-glow {
  opacity: 1;
}

.why-us__card-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--accent-glow);
  color: var(--accent-1);
  margin-bottom: 22px;
  transition: background var(--transition-normal);
}

.why-us__card:hover .why-us__card-icon {
  background: var(--accent-glow-strong);
}

.why-us__card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-strong);
}

.why-us__card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===================================================
   CTA SECTION
   =================================================== */
.cta {
  position: relative;
  padding: 120px 0;
  text-align: center;
  overflow: hidden;
}

.cta__bg {
  position: absolute;
  inset: 0;
}

.cta__gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  transition: background 0.5s ease;
}

.cta__gradient-orb--1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--orb-1), transparent 70%);
  top: -20%;
  left: 20%;
}

.cta__gradient-orb--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--orb-2), transparent 70%);
  bottom: -20%;
  right: 20%;
}

.cta__content {
  position: relative;
  z-index: 1;
}

.cta__title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  color: var(--text-strong);
}

.cta__subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-glow), transparent);
}

/* ===================================================
   CONTACT FORM
   =================================================== */
.contact-form__wrapper {
  max-width: 800px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(16px);
  text-align: left;
}

.contact-form {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.form-group--half {
  width: calc(50% - 12px);
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea {
  background: rgba(255, 255, 255, 0.8);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: var(--bg-primary);
}

.form-submit {
  width: 100%;
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.w-full {
  width: 100%;
  justify-content: center;
}

.form-result {
  font-size: 0.95rem;
  font-weight: 500;
  display: none;
}

.form-result.success {
  color: var(--accent-1);
  display: block;
}

.form-result.error {
  color: #ef4444;
  display: block;
}

@media (max-width: 768px) {
  .contact-form__wrapper {
    padding: 24px;
  }

  .form-group--half {
    width: 100%;
  }
}

/* ===================================================
   FOOTER
   =================================================== */
.footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-surface);
  transition: background 0.4s ease;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__logo-img {
  height: 72px;
  max-width: 280px;
  width: auto;
  object-fit: contain;
}

.footer__brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 300px;
}

.footer__links {
  display: flex;
  gap: 80px;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-primary);
  margin-bottom: 6px;
}

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

.footer__col a:hover {
  color: var(--accent-1);
}

.footer__bottom {
  padding-top: 28px;
  border-top: 1px solid var(--border-color);
}

.footer__bottom p {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ===================================================
   RESPONSIVE
   =================================================== */
@media (max-width: 900px) {
  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .why-us__grid {
    grid-template-columns: 1fr;
  }

  .hero__stats {
    gap: 24px;
    padding: 20px 24px;
  }
}

@media (max-width: 768px) {
  .navbar__links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--bg-mobile-nav);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    transition: right var(--transition-normal);
    border-left: 1px solid var(--border-color);
  }

  .navbar__links.open {
    right: 0;
  }

  .navbar__hamburger {
    display: flex;
  }

  .navbar__links a:not(.btn)::after {
    display: none;
  }

  .hero {
    padding: 100px 0 60px;
    min-height: auto;
  }

  .hero__headline {
    font-size: clamp(1.8rem, 7vw, 2.6rem);
  }

  .hero__stats {
    flex-direction: column;
    gap: 16px;
    padding: 24px;
  }

  .hero__stat-divider {
    width: 60px;
    height: 1px;
  }

  .hero__scroll-indicator {
    display: none;
  }

  .about,
  .services,
  .why-us,
  .cta {
    padding: 80px 0;
  }

  .section-subtitle {
    margin-bottom: 40px;
  }

  .service-card {
    padding: 28px 24px;
  }

  .service-card__number {
    font-size: 2.2rem;
  }

  .footer__links {
    flex-direction: column;
    gap: 32px;
  }

  .navbar__logo-img {
    height: 60px;
  }

  .navbar.scrolled .navbar__logo-img {
    height: 50px;
  }
}

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

  .btn {
    width: 100%;
    justify-content: center;
    max-width: 320px;
  }
}