/* ==========================================================================
   TeknoSec — Kurumsal Tasarım Sistemi
   ========================================================================== */

/* --- Tokens --------------------------------------------------------------- */
:root {
  /* Marka */
  --ink:            #0a1226;
  --ink-2:          #101a35;
  --ink-3:          #18244a;
  --brand:          #1450e6;
  --brand-600:      #0f3fc0;
  --brand-300:      #6b95ff;
  --accent:         #00c2ff;

  /* Nötr */
  --white:          #ffffff;
  --surface:        #ffffff;
  --surface-2:      #f6f8fc;
  --surface-3:      #eef2f9;
  --line:           #e2e8f2;
  --line-strong:    #cbd5e6;
  --text:           #14203c;
  --text-2:         #4a5878;
  --text-3:         #6b7896;

  /* Ölçek */
  --container:      1200px;
  --gutter:         24px;
  --radius-sm:      8px;
  --radius:         14px;
  --radius-lg:      22px;

  /* Gölge */
  --shadow-sm:      0 1px 2px rgba(16, 26, 53, .06);
  --shadow:         0 4px 16px rgba(16, 26, 53, .07);
  --shadow-lg:      0 18px 48px rgba(16, 26, 53, .12);

  /* Hareket */
  --ease:           cubic-bezier(.22, .61, .36, 1);
  --dur:            .35s;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'ss01';
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.022em;
  color: var(--ink);
}
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--brand); color: #fff; }

/* --- Yerleşim ------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding: 96px 0; }
.section--tight { padding: 72px 0; }
.section--alt { background: var(--surface-2); }
.section--dark { background: var(--ink); color: #cfd8ec; }
.section--dark h2, .section--dark h3, .section--dark h4 { color: #fff; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 12px;
  z-index: 999;
  background: var(--ink);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
}
.skip-link:focus { left: 24px; }

/* --- Tipografi yardımcıları ------------------------------------------------ */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 16px;
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
}
.section--dark .eyebrow { color: var(--accent); }
.section--dark .eyebrow::before { background: var(--accent); }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }

.section-title {
  font-size: clamp(28px, 3.6vw, 42px);
  letter-spacing: -.03em;
}
.section-sub {
  margin-top: 18px;
  font-size: 17px;
  color: var(--text-2);
  line-height: 1.7;
}
.section--dark .section-sub { color: #9fb0d0; }

/* --- Butonlar ------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -.01em;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease), transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}
.btn svg { width: 17px; height: 17px; flex: none; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 6px 18px rgba(20, 80, 230, .28);
}
.btn--primary:hover {
  background: var(--brand-600);
  box-shadow: 0 12px 28px rgba(20, 80, 230, .34);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn--ghost:hover { border-color: var(--ink); background: var(--surface-2); }

.btn--light {
  background: rgba(255, 255, 255, .08);
  color: #fff;
  border-color: rgba(255, 255, 255, .24);
  backdrop-filter: blur(8px);
}
.btn--light:hover { background: rgba(255, 255, 255, .16); border-color: rgba(255, 255, 255, .5); }

.btn--white { background: #fff; color: var(--ink); }
.btn--white:hover { background: #eef2f9; }

.btn--lg { padding: 17px 34px; font-size: 16px; }
.btn--block { width: 100%; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  color: var(--brand);
}
.link-arrow svg { width: 16px; height: 16px; transition: transform var(--dur) var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* --- Header --------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow var(--dur) var(--ease);
}
.header.is-stuck { box-shadow: 0 6px 24px rgba(16, 26, 53, .08); }

.header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  height: 76px;
}

.logo { display: inline-flex; align-items: center; gap: 11px; flex: none; }
.logo__mark { width: 34px; height: 34px; }
.logo__text {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -.035em;
  color: var(--ink);
}
.logo__text span { color: var(--brand); }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav ul, .nav li { display: contents; }
.nav > .btn { display: none; } /* yalnızca mobil menüde gösterilir */
.nav__link {
  position: relative;
  padding: 10px 15px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.nav__link:hover { color: var(--ink); background: var(--surface-2); }
.nav__link.is-active { color: var(--brand); font-weight: 600; }

.header__actions { display: flex; align-items: center; gap: 12px; flex: none; }
.header__phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
  padding: 8px 4px;
}
.header__phone svg { width: 16px; height: 16px; color: var(--brand); }
.header__phone:hover { color: var(--ink); }

.burger {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  cursor: pointer;
}
.burger span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.burger[aria-expanded='true'] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger[aria-expanded='true'] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded='true'] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* --- Hero ----------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: #c9d4ea;
  padding: 104px 0 96px;
  isolation: isolate;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 25%, transparent 75%);
  z-index: -2;
}
.hero::after {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 780px;
  height: 780px;
  background: radial-gradient(circle, rgba(20, 80, 230, .38), transparent 62%);
  filter: blur(20px);
  z-index: -1;
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 64px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px 7px 12px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  background: rgba(255, 255, 255, .06);
  font-size: 13px;
  font-weight: 500;
  color: #dbe4f6;
  margin-bottom: 26px;
}
.badge__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22d38a;
  box-shadow: 0 0 0 4px rgba(34, 211, 138, .18);
}

.hero__title {
  font-size: clamp(36px, 5.2vw, 60px);
  line-height: 1.06;
  letter-spacing: -.038em;
  color: #fff;
}
.hero__title em {
  font-style: normal;
  background: linear-gradient(100deg, var(--accent), var(--brand-300));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__desc {
  margin-top: 24px;
  max-width: 560px;
  font-size: 18px;
  line-height: 1.72;
  color: #a9b9d6;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin-top: 44px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, .12);
}
.hero__meta li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  color: #a9b9d6;
}
.hero__meta svg { width: 17px; height: 17px; color: var(--accent); flex: none; }

/* Hero panel (konsol görseli) */
.panel {
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, rgba(255, 255, 255, .09), rgba(255, 255, 255, .02));
  box-shadow: 0 32px 70px rgba(0, 0, 0, .42);
  overflow: hidden;
  backdrop-filter: blur(6px);
}
.panel__top {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
  background: rgba(255, 255, 255, .04);
}
.panel__dots { display: flex; gap: 6px; }
.panel__dots i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255, 255, 255, .22); }
.panel__label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: #8fa2c4;
}
.panel__body { padding: 22px; display: grid; gap: 14px; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.stat-box {
  padding: 16px 14px;
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius-sm);
  background: rgba(10, 18, 38, .5);
}
.stat-box b {
  display: block;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: #fff;
}
.stat-box span { font-size: 12px; color: #8fa2c4; }

.log { display: grid; gap: 9px; }
.log li {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 11px 13px;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius-sm);
  background: rgba(10, 18, 38, .45);
  font-size: 13px;
  color: #c2cfe6;
}
.log__tag {
  margin-left: auto;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
}
.log__tag--block { background: rgba(255, 92, 92, .16); color: #ff9b9b; }
.log__tag--ok    { background: rgba(34, 211, 138, .16); color: #6fe3b4; }
.log__tag--info  { background: rgba(0, 194, 255, .16); color: #7ad9ff; }
.log__pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); flex: none;
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 194, 255, .5); }
  50%      { opacity: .55; box-shadow: 0 0 0 7px rgba(0, 194, 255, 0); }
}

/* --- Güven şeridi ---------------------------------------------------------- */
.trust {
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
  padding: 30px 0;
}
.trust__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 22px 40px;
}
.trust__label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-3);
}
.trust__items { display: flex; flex-wrap: wrap; gap: 14px 32px; }
.trust__items li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
}
.trust__items svg { width: 18px; height: 18px; color: var(--brand); flex: none; }

/* --- Kartlar -------------------------------------------------------------- */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative;
  padding: 34px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}
.card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.card__icon {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  margin-bottom: 22px;
  border-radius: 12px;
  background: linear-gradient(150deg, rgba(20, 80, 230, .12), rgba(0, 194, 255, .1));
  color: var(--brand);
}
.card__icon svg { width: 24px; height: 24px; }
.card__title { font-size: 19px; margin-bottom: 11px; letter-spacing: -.02em; }
.card__text { font-size: 15px; color: var(--text-2); line-height: 1.72; }
.card__link { margin-top: 20px; display: inline-flex; }

.card--dark {
  background: var(--ink-2);
  border-color: rgba(255, 255, 255, .1);
}
.card--dark:hover { border-color: rgba(255, 255, 255, .24); }
.card--dark .card__title { color: #fff; }
.card--dark .card__text { color: #9fb0d0; }
.card--dark .card__icon {
  background: rgba(0, 194, 255, .12);
  color: var(--accent);
}

/* Numaralı süreç */
.step {
  position: relative;
  padding: 32px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.step__no {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--brand);
  margin-bottom: 16px;
}
.step__title { font-size: 18px; margin-bottom: 10px; }
.step__text { font-size: 15px; color: var(--text-2); }

/* --- Ürün vitrini --------------------------------------------------------- */
.showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.showcase--rev .device { order: -1; }
.showcase__list { display: grid; gap: 18px; margin-top: 28px; }
.showcase__list li {
  display: flex;
  gap: 13px;
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.65;
}
.showcase__list svg {
  width: 21px; height: 21px; flex: none; margin-top: 2px; color: var(--brand);
}
.showcase__list b { color: var(--text); font-weight: 600; }

.device {
  position: relative;
  padding: 44px;
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, var(--ink), var(--ink-3));
  overflow: hidden;
}
.device::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 78% 12%, rgba(0, 194, 255, .28), transparent 55%);
}
.device__shell {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 3;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .05);
  backdrop-filter: blur(4px);
}
.device__shell svg { width: 40%; color: rgba(255, 255, 255, .82); }
.device__caption {
  position: relative;
  margin-top: 22px;
  text-align: center;
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #8fa2c4;
}

/* --- İstatistikler --------------------------------------------------------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat {
  padding: 30px 24px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .03);
}
.stat__num {
  font-size: clamp(30px, 3.6vw, 42px);
  font-weight: 800;
  letter-spacing: -.035em;
  color: #fff;
  line-height: 1.1;
}
.stat__label { margin-top: 8px; font-size: 14px; color: #9fb0d0; }

/* --- Teknik özellikler tablosu -------------------------------------------- */
.spec {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}
.spec__head {
  padding: 18px 26px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink);
}
.spec__row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 26px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.spec__row:last-child { border-bottom: 0; }
.spec__row dt { color: var(--text-2); }
.spec__row dd { margin: 0; font-weight: 600; text-align: right; }

/* --- SSS ------------------------------------------------------------------ */
.faq { display: grid; gap: 12px; max-width: 860px; margin-inline: auto; }
.faq__item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}
.faq__item[open] { border-color: var(--line-strong); box-shadow: var(--shadow); }
.faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 26px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q::after {
  content: '';
  width: 11px; height: 11px; flex: none;
  border-right: 2px solid var(--text-3);
  border-bottom: 2px solid var(--text-3);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform var(--dur) var(--ease);
}
.faq__item[open] .faq__q::after { transform: rotate(-135deg) translate(-3px, -3px); }
.faq__a { padding: 0 26px 24px; font-size: 15px; color: var(--text-2); line-height: 1.75; }

/* --- CTA bandı ------------------------------------------------------------ */
.cta {
  position: relative;
  overflow: hidden;
  background: linear-gradient(120deg, var(--ink), #14275e);
  color: #c9d4ea;
  padding: 84px 0;
  text-align: center;
}
.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 120%, rgba(0, 194, 255, .3), transparent 58%);
}
.cta__inner { position: relative; max-width: 720px; margin-inline: auto; }
.cta__title {
  font-size: clamp(28px, 4vw, 42px);
  color: #fff;
  letter-spacing: -.032em;
}
.cta__desc { margin-top: 18px; font-size: 17px; color: #a9b9d6; }
.cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 34px;
}

/* --- Sayfa başlığı (iç sayfalar) ------------------------------------------ */
.pagehead {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: #a9b9d6;
  padding: 72px 0 64px;
}
.pagehead::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: radial-gradient(110% 100% at 30% 0%, #000 20%, transparent 78%);
}
.pagehead__inner { position: relative; max-width: 760px; }
.pagehead__title {
  font-size: clamp(32px, 4.6vw, 50px);
  color: #fff;
  letter-spacing: -.035em;
}
.pagehead__desc { margin-top: 20px; font-size: 18px; color: #a9b9d6; line-height: 1.7; }

.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  font-size: 13px;
  color: #8fa2c4;
}
.crumbs a:hover { color: #fff; }
.crumbs span { color: #5e6f92; }

/* --- İletişim ------------------------------------------------------------- */
.contact { display: grid; grid-template-columns: .85fr 1.15fr; gap: 56px; align-items: start; }

.info { display: grid; gap: 14px; }
.info__item {
  display: flex;
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.info__icon {
  display: grid;
  place-items: center;
  width: 42px; height: 42px; flex: none;
  border-radius: 10px;
  background: rgba(20, 80, 230, .1);
  color: var(--brand);
}
.info__icon svg { width: 20px; height: 20px; }
.info__item h3 { font-size: 15px; margin-bottom: 4px; }
.info__item p, .info__item a { font-size: 15px; color: var(--text-2); }
.info__item a:hover { color: var(--brand); }

.form {
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 600; color: var(--text); }
.field > label > span { color: #d94848; }   /* zorunlu alan yıldızı */
.consent span { color: var(--text-2); }     /* onay metni normal renkte kalır */
.field input, .field textarea, .field select {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--surface);
  font-size: 15px;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(20, 80, 230, .12);
}
.field input::placeholder, .field textarea::placeholder { color: #9aa6bf; }

.consent {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.6;
}
.consent input { width: 17px; height: 17px; margin-top: 2px; flex: none; accent-color: var(--brand); }
.consent a { color: var(--brand); font-weight: 600; text-decoration: underline; }

.form__note { margin-top: 16px; font-size: 13px; color: var(--text-3); text-align: center; }

.form__status {
  display: none;
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
}
.form__status.is-visible { display: block; }
.form__status--ok { background: rgba(34, 211, 138, .12); color: #12724c; }
.form__status--err { background: rgba(217, 72, 72, .1); color: #9c2c2c; }

/* --- Footer --------------------------------------------------------------- */
.footer {
  background: var(--ink);
  color: #9fb0d0;
  padding: 72px 0 0;
}
.footer__top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.footer .logo__text { color: #fff; }
.footer .logo__text span { color: var(--accent); }
.footer__about { margin-top: 20px; font-size: 15px; line-height: 1.7; max-width: 330px; }
.footer__title {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 20px;
}
.footer__links { display: grid; gap: 12px; font-size: 15px; }
.footer__links a:hover { color: #fff; }
.footer__contact { display: grid; gap: 14px; font-size: 15px; }
.footer__contact li { display: flex; gap: 11px; align-items: flex-start; }
.footer__contact svg { width: 17px; height: 17px; margin-top: 4px; color: var(--accent); flex: none; }
.footer__contact a:hover { color: #fff; }

.social { display: flex; gap: 10px; margin-top: 26px; }
.social a {
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 10px;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.social a:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .4); }
.social svg { width: 17px; height: 17px; }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 28px;
  padding: 26px 0;
  font-size: 14px;
  color: #7f8fb0;
}
.footer__legal { display: flex; flex-wrap: wrap; gap: 22px; }
.footer__legal a:hover { color: #fff; }

/* --- Animasyon ------------------------------------------------------------
   Gizleme yalnızca JS etkinken uygulanır; JS çalışmazsa içerik daima görünür. */
.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.js .reveal.is-in { opacity: 1; transform: none; }

/* --- Duyarlılık ----------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; gap: 52px; }
  .showcase { grid-template-columns: 1fr; gap: 44px; }
  .contact { grid-template-columns: 1fr; gap: 36px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .header__phone { display: none; }
}

@media (max-width: 860px) {
  .burger { display: block; }
  .nav {
    position: fixed;
    inset: 76px 0 auto;
    display: grid;
    gap: 2px;
    padding: 16px var(--gutter) 26px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    transform: translateY(-140%);
    transition: transform var(--dur) var(--ease);
    max-height: calc(100dvh - 76px);
    overflow-y: auto;
  }
  .nav.is-open { transform: none; }
  .nav__link { padding: 14px 12px; font-size: 16px; }
  .nav > .btn { display: inline-flex; margin-top: 10px; }
  .header__actions .btn { display: none; }
}

@media (max-width: 720px) {
  .section { padding: 68px 0; }
  .section--tight { padding: 56px 0; }
  .hero { padding: 72px 0 68px; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .form__grid { grid-template-columns: 1fr; }
  .form { padding: 26px 22px; }
  .footer__top { grid-template-columns: 1fr; gap: 36px; padding-bottom: 44px; }
  .stat-row { gap: 8px; }
  .stat-box { padding: 12px 10px; }
  .stat-box b { font-size: 18px; }
  .stat-box span { font-size: 11px; }
  .hero__cta .btn, .cta__actions .btn { width: 100%; }
  .spec__row { flex-direction: column; gap: 4px; }
  .spec__row dd { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}

@media print {
  .header, .footer, .cta, .burger { display: none; }
  body { color: #000; }
}