/* === Değişkenler === */
:root {
  --color-bg: #0f1419;
  --color-surface: #1a222c;
  --color-surface-2: #232d3a;
  --color-text: #e8eef4;
  --color-muted: #9aa8b6;
  --color-accent: #3d9fff;
  --color-accent-soft: rgba(61, 159, 255, 0.15);
  --font: "DM Sans", system-ui, -apple-system, sans-serif;
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --header-h: 72px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

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

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

a:hover {
  text-decoration: underline;
}

/* === Üst menü === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 20, 25, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-weight: 700;
  font-size: clamp(1.2rem, 3.2vw, 1.55rem);
  letter-spacing: -0.03em;
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
  line-height: 1.2;
}

.logo:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.logo:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 6px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  border-radius: 10px;
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 22px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.25rem 1.75rem;
  align-items: center;
}

.nav-links a {
  color: var(--color-muted);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--color-text);
  text-decoration: none;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem 1.25rem;
    background: var(--color-surface);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    gap: 0;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }

  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links a {
    display: block;
    padding: 0.85rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .nav.is-menu-open .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav.is-menu-open .nav-toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .nav.is-menu-open .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* === Anasayfa banner: resim + üstünde yazılar === */
.home-banner {
  position: relative;
  min-height: min(88vh, 720px);
  display: grid;
  place-items: center;
  text-align: center;
  padding: calc(var(--header-h) + 2rem) 1.5rem 3rem;
  overflow: hidden;
}

.home-banner__media {
  position: absolute;
  inset: 0;
  background-color: #1a222c;
  background-image: url("https://images.unsplash.com/photo-1626806787461-102c1bfaaea1?auto=format&fit=crop&w=1920&q=80");
  background-size: cover;
  background-position: center;
}

.home-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(15, 20, 25, 0.55) 0%,
    rgba(15, 20, 25, 0.75) 45%,
    rgba(15, 20, 25, 0.92) 100%
  );
}

.home-banner__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.home-banner__eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.home-banner h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.85rem, 4vw + 1rem, 2.85rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.home-banner__lead {
  margin: 0 0 1.75rem;
  font-size: 1.05rem;
  color: var(--color-muted);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.home-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn--primary {
  background: var(--color-accent);
  color: #0a0e12;
}

.btn--primary:hover {
  background: #5aadff;
  text-decoration: none;
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.25);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
}

/* === Bölüm ortak === */
.section {
  padding: 4rem 1.25rem;
}

.section__inner {
  max-width: 960px;
  margin: 0 auto;
}

.section__inner--wide {
  max-width: 1120px;
}

.section__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 2vw + 1rem, 2rem);
  letter-spacing: -0.02em;
}

.section__intro {
  margin: 0 0 2rem;
  color: var(--color-muted);
  max-width: 640px;
}

/* === Hizmetler: yazılar === */
.services {
  background: var(--color-surface);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.services__grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: stretch;
}

.service-card {
  --service-thumb-h: 200px;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: calc(var(--service-thumb-h) + 10rem);
  background: var(--color-surface-2);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.service-card__thumb {
  position: relative;
  flex: 0 0 var(--service-thumb-h);
  width: 100%;
  height: var(--service-thumb-h);
  min-height: var(--service-thumb-h);
  max-height: var(--service-thumb-h);
  background: #141a22;
  overflow: hidden;
  contain: strict;
}

/* Görsel akışta değil: src / doğal en-boy oranı kutuyu asla büyütmez veya küçültmez */
.service-card__thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  border: 0;
  padding: 0;
  max-width: none;
  object-fit: cover;
  object-position: center;
  display: block;
}

.service-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 1.15rem 1.25rem 1.35rem;
  min-height: 0;
}

@media (min-width: 900px) {
  .service-card {
    --service-thumb-h: 220px;
  }
}

.service-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.08rem;
}

.service-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

/* === Hizmet bölgesi (İstanbul geneli — kart düzeni) === */
.service-area {
  background: radial-gradient(ellipse 90% 55% at 50% 0%, rgba(61, 159, 255, 0.1), transparent 55%),
    var(--color-bg);
}

.service-area__intro strong {
  color: var(--color-text);
  font-weight: 600;
}

.coverage {
  margin-top: 0.25rem;
  padding: 2rem 1.5rem 1.75rem;
  border-radius: 20px;
  background: linear-gradient(165deg, rgba(35, 45, 58, 0.95) 0%, var(--color-surface) 45%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
}

.coverage__eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
  text-align: center;
}

.coverage__headline {
  margin: 0 0 0.85rem;
  font-size: clamp(1.65rem, 3.5vw + 0.6rem, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  text-align: center;
}

.coverage__lede {
  margin: 0 auto 1.75rem;
  max-width: 38rem;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.98rem;
}

.coverage__split {
  display: grid;
  gap: 0;
  grid-template-columns: 1fr;
  margin-bottom: 1.75rem;
}

@media (min-width: 720px) {
  .coverage__split {
    grid-template-columns: 1fr auto 1fr;
    align-items: stretch;
    gap: 0 1.25rem;
  }
}

.coverage__col {
  padding: 1.15rem 1.1rem;
  border-radius: var(--radius);
  background: rgba(15, 20, 25, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.coverage__col--west {
  border-top: 3px solid #5aadff;
}

.coverage__col--east {
  border-top: 3px solid #5eead4;
}

.coverage__col-title {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  font-weight: 700;
}

.coverage__col-text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.55;
}

.coverage__rail {
  display: none;
}

@media (min-width: 720px) {
  .coverage__rail {
    display: block;
    width: 1px;
    min-height: 100%;
    align-self: stretch;
    background: linear-gradient(
      180deg,
      transparent 0%,
      rgba(61, 159, 255, 0.45) 22%,
      rgba(94, 234, 212, 0.45) 78%,
      transparent 100%
    );
    border-radius: 2px;
    margin: 0.25rem 0;
  }
}

@media (max-width: 719px) {
  .coverage__col--east {
    margin-top: 0.85rem;
  }
}

.coverage__stats {
  list-style: none;
  margin: 0;
  padding: 1.1rem 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

@media (max-width: 520px) {
  .coverage__stats {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

.coverage__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  padding: 0.35rem 0.25rem;
}

.coverage__stat-value {
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  background: linear-gradient(135deg, #fff 0%, rgba(200, 220, 240, 0.85) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.coverage__stat-value--text {
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  text-transform: none;
}

.coverage__stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-align: center;
  max-width: 9rem;
  line-height: 1.3;
}

/* === İletişim === */
.contact {
  background: var(--color-surface);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.contact__grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.contact-card {
  background: var(--color-surface-2);
  border-radius: var(--radius);
  padding: 1.35rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.contact-card--wide {
  grid-column: 1 / -1;
}

@media (min-width: 700px) {
  .contact-card--wide {
    grid-column: span 2;
  }
}

.contact-card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.contact-card p {
  margin: 0;
}

.contact-card__phones {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4rem;
}

.contact-card p + p {
  margin-top: 0.35rem;
}

.contact-card__hint {
  font-size: 0.88rem;
  color: var(--color-muted);
  margin-top: 0.5rem !important;
}

.contact-card a {
  font-weight: 600;
  font-size: 1.05rem;
}