/* Temel sıfırlama ve değişkenler */
*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --color-bg: #f8f9fc;
  --color-surface: #ffffff;
  --color-text: #1a1d26;
  --color-text-muted: #5c6370;
  --color-accent: #1e5f8a;
  --color-accent-hover: #164a6e;
  --color-border: rgba(30, 95, 138, 0.12);
  --shadow-header: 0 1px 0 var(--color-border), 0 8px 24px rgba(26, 29, 38, 0.06);
  --radius: 12px;
  --font-sans: system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --header-height: 3.5rem;
  --contact-bar-height: 52px;
  --color-header-solid: #ffffff;
  /* Alt iletişim çubuğu: opak lacivert (scroll / blur ile grimsi görünmesin) */
  --color-contact-bar-solid: #071423;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
}

body[data-page="anasayfa"] {
  min-height: 100svh;
  overflow-x: hidden;
  overflow-x: clip;
  overflow-y: auto;
  padding-bottom: var(--contact-bar-height);
}

body[data-page="bize-ulasin"],
body[data-page="hakkimizda"],
body[data-page="misyonumuz"] {
  padding-bottom: var(--contact-bar-height);
  min-height: 100svh;
  position: relative;
  background:
    radial-gradient(1200px 520px at 20% 8%, rgba(67, 135, 255, 0.28), transparent 70%),
    radial-gradient(900px 520px at 85% 18%, rgba(13, 110, 253, 0.22), transparent 70%),
    linear-gradient(180deg, #0b2a44 0%, #0a1e33 55%, #071423 100%);
}

body[data-page="bize-ulasin"]::before,
body[data-page="hakkimizda"]::before,
body[data-page="misyonumuz"]::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 420px at 35% 25%, rgba(255, 255, 255, 0.12), transparent 60%),
    linear-gradient(180deg, rgba(7, 18, 32, 0.2) 0%, rgba(7, 18, 32, 0.72) 70%, rgba(7, 18, 32, 0.92) 100%);
}

.contact-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 120;
  height: calc(var(--contact-bar-height) + env(safe-area-inset-bottom));
  display: flex;
  align-items: center;
  background: var(--color-contact-bar-solid);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: env(safe-area-inset-bottom);
}

.contact-bar-inner {
  width: min(960px, 100%);
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.contact-bar-item {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.4rem 0.65rem;
  border-radius: 999px;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
  white-space: nowrap;
}

.contact-bar-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-1px);
}

.contact-bar-label {
  font-size: 0.82rem;
  opacity: 0.78;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.contact-bar-value {
  font-size: 0.9rem;
  font-weight: 700;
}

@media (max-width: 640px) {
  .contact-bar-inner {
    justify-content: space-between;
    gap: 0.5rem;
  }

  .contact-bar-item {
    flex: 1 1 0;
    min-width: 0;
    justify-content: center;
    padding: 0.32rem 0.5rem;
    gap: 0.35rem;
  }

  .contact-bar-label {
    font-size: clamp(0.72rem, 2.7vw, 0.8rem);
  }

  .contact-bar-value {
    font-size: clamp(0.78rem, 2.9vw, 0.86rem);
  }

  .contact-bar-value {
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .contact-bar-label {
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .contact-bar-item[aria-label="Instagram"] {
    display: none;
  }
}

@media (max-width: 360px) {
  .contact-bar-item {
    padding: 0.3rem 0.45rem;
  }

  .contact-bar-label {
    display: none;
  }
}

body[data-page="anasayfa"] main {
  font-size: 100%;
}

@media (min-height: 760px) {
  body[data-page="anasayfa"] main {
    font-size: 118%;
  }
}

@media (min-height: 900px) {
  body[data-page="anasayfa"] main {
    font-size: 130%;
  }
}

/* Büyük / yüksek görünümde masaüstü düzeni; dar veya alçak ekranda taşmayı önler */
body[data-page="anasayfa"] .hero-inner {
  transform: none;
  transform-origin: top center;
}

@media (min-width: 900px) and (min-height: 780px) {
  body[data-page="anasayfa"] .hero-inner {
    transform: none;
  }
}

@media (min-width: 1100px) and (min-height: 880px) {
  body[data-page="anasayfa"] .hero-inner {
    transform: none;
  }
}

@media (min-width: 1280px) and (min-height: 960px) {
  body[data-page="anasayfa"] .hero-inner {
    transform: none;
  }
}

/* Üst bar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  font-size: 112%;
  background: var(--color-header-solid);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-header);
}

.site-header .header-inner {
  width: 100%;
  margin: 0;
  padding: 0 1.25em 0 1.5em;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1em;
}

.site-header .logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  padding: 0.2em 0;
  color: var(--color-accent);
  text-decoration: none;
  white-space: nowrap;
}

.site-header .logo:hover {
  color: var(--color-accent-hover);
}

.site-header .logo-img {
  height: 2.2em;
  width: auto;
  max-width: 11em;
  display: block;
  object-fit: contain;
}

/* Menü */
.site-header .main-nav {
  display: flex;
  align-items: center;
}

.site-header .nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.25em;
}

.site-header .nav-link {
  display: block;
  padding: 0.42em 0.75em;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95em;
  border-radius: 0.5em;
  transition: color 0.2s ease, background 0.2s ease;
}

.site-header .nav-link:hover {
  color: var(--color-accent);
  background: rgba(30, 95, 138, 0.08);
}

.site-header .nav-link.active {
  color: var(--color-accent);
  background: rgba(30, 95, 138, 0.12);
}

/* Mobil menü düğmesi */
.site-header .nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 0.3125em;
  width: 2.5em;
  height: 2.5em;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 0.5em;
}

.site-header .nav-toggle:hover {
  background: rgba(30, 95, 138, 0.08);
}

.site-header .nav-toggle-bar {
  display: block;
  width: 1.35em;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.site-header.nav-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(0.365em) rotate(45deg);
}

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

.site-header.nav-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-0.365em) rotate(-45deg);
}

@media (max-width: 720px) {
  .site-header .nav-toggle {
    display: flex;
  }

  .site-header .main-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 12px 24px rgba(26, 29, 38, 0.08);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .site-header.nav-open .main-nav {
    max-height: 21em;
  }

  .site-header .nav-list {
    flex-direction: column;
    align-items: stretch;
    padding: 0.75em 1.25em 1em;
    gap: 0;
  }

  .site-header .nav-link {
    padding: 0.75em 0.85em;
  }
}

/* İçerik */
.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 3.5rem 0;
}

.section-hero {
  padding-top: 3rem;
  padding-bottom: 4rem;
}

.hero {
  position: relative;
  isolation: isolate;
}

.hero--video {
  min-height: 100svh;
  display: grid;
  align-items: start;
  padding:
    calc(var(--header-height) + clamp(1rem, 3.2vh, 2.25rem) + 20px)
    0
    clamp(1.5rem, 4vh, 2.75rem);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background: radial-gradient(1200px 500px at 20% 10%, rgba(67, 135, 255, 0.35), transparent 70%),
    radial-gradient(900px 500px at 80% 20%, rgba(13, 110, 253, 0.25), transparent 70%),
    linear-gradient(180deg, #0b2a44 0%, #0a1e33 55%, #071423 100%);
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.95) contrast(1.05) brightness(0.9);
  transform: scale(1.02);
}

@media (max-height: 840px) {
  .hero-video {
    object-position: center 32%;
  }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 420px at 35% 25%, rgba(255, 255, 255, 0.14), transparent 60%),
    linear-gradient(180deg, rgba(7, 18, 32, 0.35) 0%, rgba(7, 18, 32, 0.78) 75%, rgba(7, 18, 32, 0.92) 100%);
}

.hero-inner {
  width: 100%;
  position: relative;
  z-index: 1;
}

.hero-content {
  padding-top: 0.75rem;
  padding-bottom: 1.25rem;
}

.hero-eyebrow {
  margin: 0 0 0.85rem;
  color: rgba(255, 255, 255, 0.78);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-size: 0.95rem;
}

.hero-title--inverse {
  color: #ffffff;
  text-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
}

.hero-lead--inverse {
  color: #ffffff;
  max-width: 62ch;
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.35),
    0 4px 12px rgba(0, 0, 0, 0.6),
    0 14px 34px rgba(0, 0, 0, 0.35);
}

.hero-actions {
  margin-top: 1.35rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.05rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.01em;
  transition: transform 0.15s ease, background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  user-select: none;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: linear-gradient(180deg, #2d8cff 0%, #0b5ed7 100%);
  color: #ffffff;
  box-shadow: 0 16px 34px rgba(13, 110, 253, 0.32);
}

.btn-primary:hover {
  background: linear-gradient(180deg, #3a97ff 0%, #0a56c4 100%);
  box-shadow: 0 18px 40px rgba(13, 110, 253, 0.38);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

.hero-stats {
  margin: clamp(0.85rem, 2vh, 1.6rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(0.55rem, 1.5vw, 0.85rem);
}

.stat {
  margin: 0;
  padding: 0.85rem 0.95rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.stat-value {
  margin: 0;
  color: #ffffff;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 1.1rem;
}

.stat-label {
  margin: 0.15rem 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
}

.hero-features {
  padding-top: clamp(0.65rem, 2vh, 1.25rem);
  padding-bottom: clamp(0.35rem, 1vh, 0.75rem);
}

.feature-pill {
  list-style: none;
  margin: 0 auto;
  padding: 1rem 1.1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1.25rem;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(13, 110, 253, 0.12);
  border-radius: 18px;
  box-shadow: 0 18px 45px rgba(7, 18, 32, 0.22);
}

.feature-item {
  position: relative;
  padding-left: 1.35rem;
  color: #17324a;
  font-weight: 650;
  font-size: 0.98rem;
}

.feature-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background: linear-gradient(180deg, #2d8cff 0%, #0b5ed7 100%);
  box-shadow: 0 8px 18px rgba(13, 110, 253, 0.28);
}

@media (max-width: 900px) {
  .hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-height: 720px) {
  body[data-page="anasayfa"] main {
    font-size: 100%;
  }

  .hero-content {
    padding-top: 0.35rem;
    padding-bottom: 0.65rem;
  }

  .stat {
    padding: 0.65rem 0.75rem;
  }

  .stat-value {
    font-size: 1rem;
  }

  .feature-pill {
    padding: 0.75rem 0.85rem;
    gap: 0.55rem 1rem;
  }

  .hero-actions {
    margin-top: 0.85rem;
  }
}

@media (max-width: 520px) {
  .hero--video {
    padding-top: calc(var(--header-height) + 0.85rem);
  }

  .feature-pill {
    justify-content: flex-start;
    padding: 0.9rem 1rem;
  }
}

.section-page {
  padding-top: 2.5rem;
  padding-bottom: 4rem;
}

.hero-title {
  margin: 0 0 1rem;
  font-size: clamp(1.65rem, 4vw, 2.15rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.hero-lead {
  margin: 0;
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 52ch;
}

.hero-lead.hero-lead--inverse {
  color: #ffffff;
}

.section-title {
  margin: 0 0 1rem;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.section-text {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.section-alt {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* Bize ulaşın, Hakkımızda, Misyonumuz (aynı koyu tema) */
body[data-page="bize-ulasin"] main,
body[data-page="hakkimizda"] main,
body[data-page="misyonumuz"] main {
  min-height: calc(100svh - var(--header-height) - var(--contact-bar-height));
}

.contact-hero {
  position: relative;
  isolation: isolate;
  min-height: calc(100svh - var(--header-height) - var(--contact-bar-height));
  padding: clamp(1rem, 3vh, 1.75rem) 0 clamp(1.25rem, 3vh, 2rem);
  background: transparent;
}

.contact-hero-inner {
  display: grid;
  gap: clamp(0.85rem, 2.5vh, 1.35rem);
  place-items: center;
  width: 100%;
}

.contact-hero-header {
  text-align: center;
  max-width: 64ch;
}

body[data-page="misyonumuz"] .contact-hero,
body[data-page="hakkimizda"] .contact-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

body[data-page="hakkimizda"] .about-page-inner {
  width: 100%;
  max-width: 980px;
  margin-inline: auto;
}

body[data-page="hakkimizda"] .about-card {
  width: min(920px, 100%);
  padding: clamp(1.6rem, 3.6vw, 2.4rem);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.65);
  box-shadow: 0 18px 52px rgba(7, 18, 32, 0.2);
}

body[data-page="hakkimizda"] .about-title {
  margin: 0 0 0.85rem;
  font-size: clamp(1.4rem, calc(1.15rem + 1.15vw), 1.85rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--color-accent);
}

body[data-page="hakkimizda"] .about-text {
  margin: 0;
  color: var(--color-text-muted);
  font-size: clamp(1.02rem, calc(0.92rem + 0.85vw), 1.12rem);
  line-height: 1.75;
}

body[data-page="hakkimizda"] .about-signature {
  margin: 1.1rem 0 0;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

body[data-page="misyonumuz"] .mission-page-inner {
  width: 100%;
  max-width: 1080px;
  margin-inline: auto;
}

body[data-page="misyonumuz"] .mission-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.15rem, 2.8vw, 1.65rem);
  width: 100%;
}

body[data-page="misyonumuz"] .mission-card {
  margin: 0;
  padding: clamp(1.45rem, 3.2vw, 2.15rem);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.65);
  box-shadow: 0 16px 44px rgba(7, 18, 32, 0.18);
}

body[data-page="misyonumuz"] .mission-card-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.2rem, calc(1rem + 0.9vw), 1.45rem);
  font-weight: 750;
  letter-spacing: -0.025em;
  line-height: 1.25;
  color: var(--color-accent);
}

body[data-page="misyonumuz"] .mission-card-text {
  margin: 0;
  color: var(--color-text-muted);
  font-size: clamp(1.02rem, calc(0.92rem + 0.85vw), 1.12rem);
  line-height: 1.65;
}

@media (max-width: 560px) {
  body[data-page="misyonumuz"] .mission-cards {
    grid-template-columns: 1fr;
  }
}

.contact-page-title {
  color: #dbeafe;
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.35),
    0 8px 22px rgba(0, 0, 0, 0.35);
}

.contact-eyebrow {
  margin: 0 0 0.85rem;
  color: rgba(255, 255, 255, 0.78);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-size: 0.95rem;
}

.contact-card {
  width: min(640px, 100%);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 18px;
  box-shadow: 0 22px 55px rgba(7, 18, 32, 0.28);
  padding: 1.25rem;
}

.contact-form {
  margin: 0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem 0.95rem;
}

.form-field--full {
  grid-column: 1 / -1;
}

.form-label {
  display: block;
  margin: 0 0 0.35rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: #17324a;
}

.form-input {
  width: 100%;
  display: block;
  border-radius: 12px;
  border: 1px solid rgba(26, 29, 38, 0.16);
  background: #ffffff;
  padding: 0.75rem 0.85rem;
  font: inherit;
  color: var(--color-text);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input::placeholder {
  color: rgba(92, 99, 112, 0.75);
}

.form-input:focus {
  border-color: rgba(13, 110, 253, 0.55);
  box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.14);
}

select.form-input {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(26, 29, 38, 0.55) 50%),
    linear-gradient(135deg, rgba(26, 29, 38, 0.55) 50%, transparent 50%);
  background-position:
    calc(100% - 1.05rem) calc(50% - 0.1rem),
    calc(100% - 0.75rem) calc(50% - 0.1rem);
  background-size: 0.35rem 0.35rem, 0.35rem 0.35rem;
  background-repeat: no-repeat;
  padding-right: 2.2rem;
}

.form-actions {
  margin-top: 1.1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.form-note {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 600;
}

@media (min-width: 1000px) and (min-height: 820px) {
  .contact-hero-inner {
    transform: translateY(clamp(0px, 3vh, 24px)) scale(1.03);
  }
}

@media (max-width: 640px) {
  .contact-card {
    padding: 1.05rem;
  }

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

  .form-actions {
    justify-content: flex-start;
  }
}