/* ============================================================
   Avci Elektrotechnik – Main Stylesheet
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --color-primary:    #1B4F8C;
  --color-primary-dk: #143d6e;
  --color-primary-lt: #2563a8;
  --color-accent:     #CC1F1F;
  --color-accent-dk:  #a81919;
  --color-dark:       #0D1117;
  --color-dark-2:     #161b22;
  --color-dark-3:     #1e242c;
  --color-gray:       #F3F5F8;
  --color-gray-2:     #e5e8ed;
  --color-text:       #1a1f2e;
  --color-text-muted: #6b7280;
  --color-white:      #ffffff;
  --color-border:     rgba(27, 79, 140, 0.15);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs:  0.75rem;
  --font-size-sm:  0.875rem;
  --font-size-base:1rem;
  --font-size-lg:  1.125rem;
  --font-size-xl:  1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;

  --radius-sm:  0.375rem;
  --radius-md:  0.625rem;
  --radius-lg:  1rem;
  --radius-xl:  1.5rem;
  --radius-full:9999px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.15);
  --shadow-xl:  0 20px 60px rgba(0,0,0,.20);
  --shadow-blue:0 8px 32px rgba(27,79,140,.35);
  --shadow-red: 0 8px 32px rgba(204,31,31,.35);

  --transition: 250ms cubic-bezier(.4,0,.2,1);
  --transition-slow: 450ms cubic-bezier(.4,0,.2,1);

  --header-h: 72px;
  --max-w: 1200px;
  --section-py: clamp(4rem, 8vw, 7rem);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.65;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, select, textarea { font-family: inherit; }
details > summary { list-style: none; }
details > summary::-webkit-details-marker { display: none; }

/* ---------- Utility ---------- */
.container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1rem, 5vw, 2rem);
}

.section { padding-block: var(--section-py); }
.section--gray { background: var(--color-gray); }

/* ---------- Section Header ---------- */
.section-header { text-align: center; margin-bottom: 3.5rem; }

.section-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(27,79,140,.1);
  border: 1px solid rgba(27,79,140,.2);
  border-radius: var(--radius-full);
  padding: .35rem 1rem;
  margin-bottom: 1rem;
}

.section-tag--light {
  color: rgba(255,255,255,.85);
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.2);
}

.section-title {
  font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-5xl));
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.02em;
  color: var(--color-text);
}

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

.section-subtitle {
  max-width: 580px;
  margin: 1rem auto 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-lg);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  padding: .75rem 1.5rem;
  transition: all var(--transition);
  white-space: nowrap;
  text-align: center;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-blue);
}

.btn--primary:hover, .btn--primary:focus-visible {
  background: var(--color-primary-lt);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(27,79,140,.45);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid rgba(27,79,140,.3);
  box-shadow: none;
}

.btn--outline:hover, .btn--outline:focus-visible {
  border-color: var(--color-primary);
  background: rgba(27,79,140,.06);
  transform: translateY(-2px);
}

.btn--lg { font-size: var(--font-size-lg); padding: .9rem 2rem; }
.btn--full { width: 100%; justify-content: center; }

.btn__icon { width: 18px; height: 18px; flex-shrink: 0; }

/* ---------- HEADER ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-gray-2);
  transition: box-shadow var(--transition);
}

.header.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,.08); }

.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-shrink: 0;
}

.header__logo img { width: 48px; height: 48px; object-fit: contain; }

.header__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.header__logo-text strong {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: .05em;
  color: var(--color-text);
}

.header__logo-text small {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Nav */
.nav { flex: 1; display: flex; justify-content: center; }

.nav__list {
  display: flex;
  gap: .25rem;
  align-items: center;
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: .5rem .85rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 50%; right: 50%;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition);
}

.nav__link:hover { color: var(--color-primary); }
.nav__link:hover::after, .nav__link.active::after { left: 20%; right: 20%; }
.nav__link.active { color: var(--color-primary); }

.header__cta { flex-shrink: 0; }

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  padding: 4px;
  flex-shrink: 0;
}

.burger span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: all var(--transition);
  transform-origin: center;
}

.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  top: var(--header-h); left: 0; right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-2);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), opacity var(--transition);
  opacity: 0;
  z-index: 99;
  box-shadow: 0 8px 24px rgba(0,0,0,.07);
}

.mobile-nav.open {
  max-height: 500px;
  opacity: 1;
}

.mobile-nav__list {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .25rem;
}

.mobile-nav__link {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: .75rem 1rem;
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.mobile-nav__link:hover { background: var(--color-gray); color: var(--color-primary); }

.mobile-nav__cta {
  margin-top: .75rem;
  display: block;
  text-align: center;
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(155deg, #eef4ff 0%, #f5f8ff 45%, #ffffff 100%);
  overflow: hidden;
  padding-top: var(--header-h);
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(27,79,140,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27,79,140,.07) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 40%, transparent 100%);
}

/* Animated particles */
.hero__particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding-block: 5rem 2rem;
}

/* Badge */
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-primary);
  background: rgba(27,79,140,.08);
  border: 1px solid rgba(27,79,140,.18);
  border-radius: var(--radius-full);
  padding: .4rem 1.1rem;
  margin-bottom: 1.75rem;
}

.hero__badge-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse-dot 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34,197,94,.5); }
  50%       { box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}

.hero__title {
  font-size: clamp(var(--font-size-4xl), 5.5vw, var(--font-size-6xl));
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.03em;
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

.hero__title-accent {
  color: transparent;
  -webkit-text-stroke: 2px var(--color-primary-lt);
  background: linear-gradient(135deg, var(--color-primary-lt), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__subtitle {
  font-size: clamp(var(--font-size-base), 2vw, var(--font-size-lg));
  color: var(--color-text-muted);
  max-width: 500px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Hero Visual */
.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__logo-wrap {
  position: relative;
  width: clamp(220px, 30vw, 360px);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__logo-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle, rgba(27,79,140,.18) 0%, rgba(204,31,31,.06) 50%, transparent 70%);
  border-radius: 50%;
  animation: glow-pulse 3s ease-in-out infinite;
  pointer-events: none;
}

@keyframes glow-pulse {
  0%, 100% { opacity: .6; transform: scale(1); }
  50%       { opacity: 1;  transform: scale(1.08); }
}

.hero__logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 20px 60px rgba(27,79,140,.5));
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

/* Stats Bar */
.hero__stats {
  position: relative;
  z-index: 1;
  padding-bottom: 4rem;
}

.stats-bar {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.stat-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.75rem 1.5rem;
  gap: .35rem;
}

.stat-item__number {
  font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-4xl));
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: -.02em;
  line-height: 1;
}

.stat-item__number::after {
  content: '+';
  font-size: .6em;
  color: var(--color-accent);
}

.stat-item:last-child .stat-item__number::after { content: '%'; }
.stat-item:nth-child(3) .stat-item__number::after { content: ''; }

.stat-item__label {
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  text-align: center;
  letter-spacing: .02em;
}

.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--color-gray-2);
  flex-shrink: 0;
}

/* ---------- SERVICES ---------- */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* Last row: 3 items (4,5,6) */
.services__grid > .service-card:nth-child(4) { grid-column: 1; }
.services__grid > .service-card:nth-child(5) { grid-column: 2; }
.services__grid > .service-card:nth-child(6) { grid-column: 3; }

/* CTA service card variant */
.service-card--cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dk) 100%) !important;
  border-color: transparent;
  display: flex;
  flex-direction: column;
}

.service-card--cta::before {
  background: linear-gradient(90deg, rgba(255,255,255,.3), rgba(255,255,255,.1)) !important;
  transform: scaleX(1);
}

.service-card--cta .service-card__icon {
  background: rgba(255,255,255,.15);
}

.service-card--cta .service-card__icon svg { color: var(--color-white); }

.service-card--cta .service-card__title { color: var(--color-white); }

.service-card--cta .service-card__desc {
  color: rgba(255,255,255,.8);
  flex: 1;
}

.service-card--cta:hover {
  border-color: transparent;
  box-shadow: var(--shadow-blue);
}

.service-card--cta .btn--primary {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(0,0,0,.15);
  margin-top: auto;
}

.service-card--cta .btn--primary:hover {
  background: var(--color-gray);
  box-shadow: 0 8px 30px rgba(0,0,0,.2);
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2rem 1.75rem;
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-lt));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(27,79,140,.3);
}

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

.service-card--accent::before {
  background: linear-gradient(90deg, var(--color-accent), #e53e3e);
}

.service-card--accent:hover { border-color: rgba(204,31,31,.25); }

.service-card__icon-wrap { margin-bottom: 1.25rem; }

.service-card__icon {
  width: 52px; height: 52px;
  background: rgba(27,79,140,.1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: .8rem;
  transition: all var(--transition);
}

.service-card__icon svg { width: 100%; height: 100%; color: var(--color-primary); }

.service-card--accent .service-card__icon {
  background: rgba(204,31,31,.1);
}

.service-card--accent .service-card__icon svg { color: var(--color-accent); }

.service-card:hover .service-card__icon { transform: scale(1.1); }

.service-card__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: .75rem;
  color: var(--color-text);
}

.service-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.service-card__list {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.service-card__list li {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding-left: 1.25rem;
  position: relative;
}

.service-card__list li::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 6px; height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}

.service-card--accent .service-card__list li::before { background: var(--color-accent); }


/* ---------- ABOUT ---------- */
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about__text {
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  font-size: var(--font-size-lg);
  line-height: 1.75;
}

.about__highlights {
  display: flex;
  flex-direction: column;
  gap: .85rem;
  margin-bottom: 2.5rem;
  margin-top: 1.5rem;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: .85rem;
}

.highlight-item__icon {
  width: 28px; height: 28px;
  background: rgba(27,79,140,.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 5px;
}

.highlight-item__icon svg { color: var(--color-primary); width: 100%; height: 100%; }

.highlight-item span {
  font-size: var(--font-size-base);
  color: var(--color-text);
  font-weight: 500;
}

.about__visual {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.about__logo-display {
  width: 100%;
  height: auto;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.about__logo-display::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, rgba(27,79,140,.2), transparent 70%);
}

.about__logo-img {
  width: 100%;
  object-fit: contain;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 10px 30px rgba(27,79,140,.4));
}

.about__badges {
  display: flex;
  gap: 1rem;
}

.about__badge {
  display: flex;
  align-items: center;
  gap: .6rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: .75rem 1.25rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  box-shadow: var(--shadow-sm);
}

.about__badge svg { width: 18px; height: 18px; color: var(--color-primary); }

/* ---------- WHY US ---------- */
.why-us__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.why-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2rem 1.5rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-slow);
}

.why-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(27,79,140,.3);
}

.why-card__num {
  position: absolute;
  top: 1.25rem; right: 1.25rem;
  font-size: var(--font-size-4xl);
  font-weight: 900;
  color: rgba(27,79,140,.06);
  line-height: 1;
  pointer-events: none;
  letter-spacing: -.02em;
}

.why-card__icon {
  width: 46px; height: 46px;
  background: rgba(27,79,140,.1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: .65rem;
  margin-bottom: 1rem;
}

.why-card__icon svg { color: var(--color-primary); width: 100%; height: 100%; }

.why-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: .6rem;
}

.why-card__text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ---------- FAQ ---------- */
.faq__inner { max-width: 760px; margin-inline: auto; }

.faq__list { display: flex; flex-direction: column; gap: .75rem; }

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.faq-item[open] {
  box-shadow: var(--shadow-md);
  border-color: rgba(27,79,140,.25);
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: color var(--transition);
  color: var(--color-text);
}

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

.faq-item__icon {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--color-gray);
  flex-shrink: 0;
  position: relative;
  transition: all var(--transition);
}

.faq-item__icon::before,
.faq-item__icon::after {
  content: '';
  position: absolute;
  inset: 0;
  margin: auto;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition);
}

.faq-item__icon::before { width: 10px; height: 2px; }
.faq-item__icon::after  { width: 2px; height: 10px; }

.faq-item[open] .faq-item__icon {
  background: var(--color-primary);
}

.faq-item[open] .faq-item__icon::before,
.faq-item[open] .faq-item__icon::after { background: white; }
.faq-item[open] .faq-item__icon::after { transform: rotate(90deg); }

.faq-item__answer {
  padding: 0 1.5rem 1.25rem;
}

.faq-item__answer p {
  color: var(--color-text-muted);
  line-height: 1.75;
  font-size: var(--font-size-base);
}

/* ---------- CONTACT ---------- */
.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: start;
}

.contact__intro {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  margin-top: 1rem;
  margin-bottom: 2.5rem;
  line-height: 1.75;
}

.contact-details { display: flex; flex-direction: column; gap: 1.25rem; }

.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-detail-item__icon {
  width: 44px; height: 44px;
  background: rgba(27,79,140,.1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: .65rem;
  flex-shrink: 0;
}

.contact-detail-item__icon svg { color: var(--color-primary); width: 100%; height: 100%; }

.contact-detail-item strong {
  display: block;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--color-text-muted);
  margin-bottom: .2rem;
}

.contact-detail-item__value {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  display: block;
  transition: color var(--transition);
}

a.contact-detail-item__value:hover { color: var(--color-primary); }

/* Contact Form */
.contact-form {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group--full { grid-column: 1 / -1; }

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
}

.form-label span { color: var(--color-accent); }

.form-input {
  padding: .75rem 1rem;
  border: 1.5px solid var(--color-gray-2);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-gray);
  transition: all var(--transition);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.form-input:focus {
  border-color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(27,79,140,.15);
}

.form-input.error { border-color: var(--color-accent); }

.form-textarea { resize: vertical; min-height: 130px; }

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.form-checkbox input { position: absolute; opacity: 0; width: 0; height: 0; }

.form-checkbox__box {
  width: 20px; height: 20px;
  border: 1.5px solid var(--color-gray-2);
  border-radius: var(--radius-sm);
  background: var(--color-gray);
  flex-shrink: 0;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.form-checkbox input:checked + .form-checkbox__box {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.form-checkbox input:checked + .form-checkbox__box::after {
  content: '';
  width: 6px; height: 10px;
  border: 2px solid white;
  border-top: none; border-left: none;
  transform: rotate(40deg) translateY(-1px);
  display: block;
}

.form-checkbox a { color: var(--color-primary); font-weight: 500; }
.form-checkbox a:hover { text-decoration: underline; }

.form-success {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: .75rem;
  background: rgba(34,197,94,.1);
  border: 1px solid rgba(34,197,94,.3);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  color: #166534;
  font-weight: 600;
  font-size: var(--font-size-base);
}

.form-success svg { width: 22px; height: 22px; color: #16a34a; flex-shrink: 0; }
.form-success[hidden] { display: none; }

/* ---------- FOOTER ---------- */
.footer {
  background: var(--color-gray);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-gray-2);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
  gap: 3rem;
  padding-block: 4rem;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1rem;
}

.footer__logo img { width: 44px; height: 44px; object-fit: contain; }

.footer__logo span {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.footer__logo strong {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: .05em;
  color: var(--color-text);
}

.footer__logo small {
  font-size: 1rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.footer__tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-style: italic;
}

.footer__nav-title {
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

.footer__nav ul,
.footer__services ul {
  display: flex;
  flex-direction: column;
  gap: .6rem;
}

.footer__nav a:hover { color: var(--color-primary); }

.footer__contact address {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: .65rem;
  font-size: var(--font-size-sm);
}

.footer__contact a:hover { color: var(--color-primary); }

.footer__bottom {
  border-top: 1px solid var(--color-gray-2);
  padding-block: 1.5rem;
}

.footer__bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: var(--font-size-sm);
}

.footer__legal {
  display: flex;
  gap: 1.5rem;
}

.footer__legal a { transition: color var(--transition); }
.footer__legal a:hover { color: var(--color-primary); }

/* ---------- BACK TO TOP ---------- */
.back-to-top {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-blue);
  transition: all var(--transition);
  z-index: 50;
  opacity: 0;
  transform: translateY(16px);
}

.back-to-top:not([hidden]) {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top[hidden] { display: flex; visibility: hidden; pointer-events: none; }

.back-to-top svg { width: 22px; height: 22px; }
.back-to-top:hover { background: var(--color-primary-lt); transform: translateY(-3px); }

/* ---------- ANIMATIONS ---------- */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .65s ease, transform .65s ease;
}

[data-animate="fade-left"]  { transform: translateX(40px); }
[data-animate="fade-right"] { transform: translateX(-40px); }
[data-animate="fade-up"]    { transform: translateY(30px); }

[data-animate].is-visible {
  opacity: 1;
  transform: translate(0);
}

/* Particle */
.particle {
  position: absolute;
  border-radius: 50%;
  opacity: .15;
  animation: particle-float linear infinite;
}

@keyframes particle-float {
  from { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10%  { opacity: .2; }
  90%  { opacity: .15; }
  to   { transform: translateY(-10vh) rotate(360deg); opacity: 0; }
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1100px) {
  .why-us__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .services__grid > .service-card:nth-child(4),
  .services__grid > .service-card:nth-child(5),
  .services__grid > .service-card:nth-child(6) { grid-column: auto; }
  .about__inner { grid-template-columns: 1fr; gap: 3rem; }
  .about__visual { order: -1; }
  .contact__inner { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }

  .nav { display: none; }
  .header__cta { display: none; }
  .burger { display: flex; }

  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }

  .hero__content { order: 1; }
  .hero__visual  { order: 0; }

  .hero__badge { justify-content: center; }
  .hero__subtitle { margin-inline: auto; }
  .hero__actions { justify-content: center; }

  .hero__logo-wrap { width: 200px; }

  .stats-bar { flex-wrap: wrap; }
  .stat-divider { display: none; }
  .stat-item { flex: 1 1 45%; }

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

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

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

  .footer__inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 480px) {
  .why-us__grid { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
  .stat-item { flex: 1 1 100%; }
  .about__badges { flex-direction: column; width: 100%; }
}

/* ---------- Focus & Accessibility ---------- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  html { scroll-behavior: auto; }
}