/* ==========================================================================
   MOMENTUM — Marka bileşenleri ve özel stiller
   (Tailwind utility'leri index.html'de; bu dosya markaya özgü bileşenler içindir)
   ========================================================================== */

:root {
  --navy: #0a1a2e;
  --navy-dark: #060f1c;
  --navy-2: #13294d;
  --red: #c8102e;
  --red-hover: #e11d2a;
  --blue-glow: #1e3a5f;
  --body: #e5e7eb;
  --muted: #94a3b8;
}

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body { overflow-x: hidden; }

/* AOS başlamadan önce içerik gizli kalmasın diye (JS yoksa) */
.no-js [data-aos] { opacity: 1 !important; transform: none !important; }

/* ----------------------------------------------------------------------------
   Tipografi yardımcıları
---------------------------------------------------------------------------- */
.kicker {
  font-family: "Saira Condensed", sans-serif;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--muted);
}
.section-title {
  font-family: "Saira Condensed", sans-serif;
  font-weight: 900;
  text-transform: uppercase;
  line-height: 0.95;
  letter-spacing: -0.01em;
  color: #fff;
  font-size: clamp(2.1rem, 5vw, 3.6rem);
}
.title-underline {
  display: block;
  width: 64px;
  height: 4px;
  margin-top: 1rem;
  background: linear-gradient(90deg, var(--red), #7a0a1c);
  border-radius: 2px;
}

/* ----------------------------------------------------------------------------
   Butonlar
---------------------------------------------------------------------------- */
.btn-red {
  background: var(--red);
  color: #fff;
  border-radius: 6px;
  transition: background .25s, transform .2s, box-shadow .25s;
  box-shadow: 0 8px 24px -10px rgba(200,16,46,.7);
}
.btn-red:hover { background: var(--red-hover); transform: translateY(-2px); box-shadow: 0 14px 30px -10px rgba(225,29,42,.8); }
.btn-red:active { transform: translateY(0); }

.btn-outline {
  border: 1.5px solid rgba(255,255,255,.35);
  color: #fff;
  border-radius: 6px;
  background: rgba(255,255,255,.04);
  backdrop-filter: blur(4px);
  transition: border-color .25s, background .25s, transform .2s;
}
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,.12); transform: translateY(-2px); }

/* ----------------------------------------------------------------------------
   Header durumları
---------------------------------------------------------------------------- */
#site-header.scrolled {
  background: rgba(6, 15, 28, .85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 10px 30px -15px rgba(0,0,0,.6);
}
.nav-link {
  position: relative;
  color: var(--body);
  transition: color .2s;
  padding-bottom: 2px;
}
.nav-link::after {
  content: "";
  position: absolute; left: 0; bottom: -4px;
  width: 0; height: 2px; background: var(--red);
  transition: width .25s;
}
.nav-link:hover { color: #fff; }
.nav-link:hover::after { width: 100%; }

.mobile-link {
  display: block;
  color: var(--body);
  padding: .75rem .5rem;
  border-radius: 6px;
  transition: background .2s, color .2s;
}
.mobile-link:hover { background: rgba(255,255,255,.06); color: #fff; }

/* ----------------------------------------------------------------------------
   Arka plan dokuları: bayrak + hız çizgileri
---------------------------------------------------------------------------- */
/* İnce ABD bayrağı çizgi dokusu */
.flag-stripes {
  background-image: repeating-linear-gradient(
    0deg,
    rgba(255,255,255,.06) 0px,
    rgba(255,255,255,.06) 2px,
    transparent 2px,
    transparent 28px
  );
}
/* Köşe bayrak aksanı (yıldız + çizgi) */
.flag-corner {
  background:
    radial-gradient(circle at 18% 22%, rgba(255,255,255,.5) 0 1.2px, transparent 1.6px) 0 0 / 26px 24px,
    repeating-linear-gradient(0deg, rgba(200,16,46,.55) 0 6px, transparent 6px 16px);
  -webkit-mask-image: linear-gradient(to bottom left, #000, transparent);
          mask-image: linear-gradient(to bottom left, #000, transparent);
}
/* Krom/kırmızı diyagonal hız çizgileri */
.speed-lines {
  background-image:
    linear-gradient(115deg, transparent 0 48%, rgba(200,16,46,.5) 48% 48.4%, transparent 49%),
    linear-gradient(115deg, transparent 0 60%, rgba(255,255,255,.25) 60% 60.3%, transparent 61%),
    linear-gradient(115deg, transparent 0 72%, rgba(30,58,95,.6) 72% 72.5%, transparent 73%);
  background-size: cover;
}

/* ----------------------------------------------------------------------------
   Değer kartları
---------------------------------------------------------------------------- */
.value-card {
  background: linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  padding: 1.6rem;
  backdrop-filter: blur(6px);
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.value-card:hover {
  transform: translateY(-6px);
  border-color: rgba(200,16,46,.5);
  box-shadow: 0 18px 40px -20px rgba(200,16,46,.55);
}
.value-icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: rgba(200,16,46,.14);
  color: var(--red);
  margin-bottom: 1rem;
}
.value-title {
  font-family: "Saira Condensed", sans-serif;
  font-weight: 700; text-transform: uppercase; letter-spacing: .03em;
  font-size: 1.2rem; color: #fff; margin-bottom: .4rem;
}
.value-text { color: var(--muted); font-size: .95rem; line-height: 1.5; }

/* ----------------------------------------------------------------------------
   İstatistik sayaçları
---------------------------------------------------------------------------- */
.stat-number {
  font-family: "Saira Condensed", sans-serif;
  font-weight: 900;
  font-size: clamp(2.8rem, 7vw, 4.6rem);
  line-height: 1;
  color: #fff;
  text-shadow: 0 0 30px rgba(200,16,46,.35);
}
.stat-suffix { color: var(--red); }
.stat-label {
  margin-top: .5rem;
  font-family: "Saira Condensed", sans-serif;
  font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted); font-size: .9rem;
}

/* ----------------------------------------------------------------------------
   Ürün kartları
---------------------------------------------------------------------------- */
.product-card {
  position: relative;
  display: flex; flex-direction: column;
  background: linear-gradient(165deg, rgba(255,255,255,.07), rgba(255,255,255,.015));
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 16px;
  padding: 1.8rem 1.5rem 1.5rem;
  overflow: hidden;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.product-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--red), transparent);
  opacity: .8;
}
.product-card:hover {
  transform: translateY(-8px);
  border-color: rgba(200,16,46,.55);
  box-shadow: 0 26px 50px -24px rgba(200,16,46,.6), 0 0 0 1px rgba(200,16,46,.25);
}
.badge-warranty {
  align-self: flex-start;
  font-family: "Saira Condensed", sans-serif;
  font-weight: 800; letter-spacing: .06em;
  font-size: .72rem;
  color: #fff;
  background: var(--red);
  padding: .3rem .7rem;
  border-radius: 999px;
  box-shadow: 0 6px 16px -8px rgba(200,16,46,.8);
}
.product-tag {
  margin-top: 1rem;
  font-size: .78rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted);
}
.product-name {
  font-family: "Saira Condensed", sans-serif;
  font-weight: 900; text-transform: uppercase;
  font-size: 2rem; line-height: 1; color: #fff; margin-top: .2rem;
}
.product-slogan { color: var(--red); font-weight: 500; font-size: .92rem; margin-top: .5rem; font-style: italic; }
.product-specs { margin-top: 1.1rem; border-top: 1px solid rgba(255,255,255,.08); }
.product-specs li {
  display: flex; justify-content: space-between; align-items: center;
  padding: .55rem 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
  font-size: .9rem;
}
.product-specs li span { color: var(--muted); }
.product-specs li strong { color: #fff; font-weight: 600; }
.product-desc { color: var(--muted); font-size: .86rem; line-height: 1.55; margin-top: 1rem; flex: 1; }
.product-cta {
  display: inline-block; margin-top: 1.2rem;
  font-family: "Saira Condensed", sans-serif;
  font-weight: 700; text-transform: uppercase; letter-spacing: .05em;
  color: #fff;
  transition: color .2s, gap .2s;
}
.product-cta:hover { color: var(--red); }

/* ----------------------------------------------------------------------------
   Teknoloji — exploded katmanlar
---------------------------------------------------------------------------- */
/* Holografik Kesit Tarayıcı (canvas) sarmalayıcısı */
.scanner-wrap {
  position: relative;
  width: 100%;
  min-height: 380px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(125,227,255,.12);
  background: radial-gradient(120% 100% at 50% 0, #0c2138, #05101e 80%);
  box-shadow: 0 30px 60px -34px rgba(0,0,0,.8), inset 0 1px 0 rgba(255,255,255,.05);
}
@media (min-width: 1024px) { .scanner-wrap { min-height: 460px; } }
@media (max-width: 640px) { .scanner-wrap { min-height: 320px; } }
.scanner-wrap canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  display: block;
}
/* Fallback diyagram canvas üstünde değil, arkasında konumlanır */
.scanner-wrap .layer-stack {
  position: absolute; inset: 0;
  height: auto;
}
/* Canvas başarıyla başladıysa fallback diyagramı gizle */
.scanner-wrap.canvas-on .layer-stack { display: none; }

.layer-stack {
  position: relative;
  height: 360px;
  perspective: 1200px;
  display: flex; align-items: center; justify-content: center;
}
.layer {
  position: absolute;
  width: 78%;
  height: 56px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(30,58,95,.9), rgba(13,31,58,.85));
  border: 1px solid rgba(120,170,230,.35);
  box-shadow: 0 10px 30px -12px rgba(0,0,0,.7), inset 0 1px 0 rgba(255,255,255,.12);
  transform: rotateX(58deg) translateZ(calc(var(--i) * 18px)) translateY(calc(var(--i) * 6px));
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transition: transform .7s cubic-bezier(.2,.7,.2,1), opacity .6s;
  transition-delay: calc(var(--i) * 90ms);
}
.layer span {
  font-family: "Saira Condensed", sans-serif;
  font-weight: 600; letter-spacing: .04em; text-transform: uppercase;
  font-size: .82rem; color: #dbeafe;
  transform: rotateX(-58deg);
  white-space: nowrap;
}
/* görünür olunca açıl */
.layer-stack.revealed .layer {
  opacity: 1;
  transform: rotateX(58deg) translateZ(0) translateY(calc((var(--i) - 2.5) * 64px));
}
.layer:nth-child(1) { background: linear-gradient(135deg, rgba(200,16,46,.55), rgba(120,10,28,.55)); border-color: rgba(255,140,150,.4); }

.layer-item {
  display: flex; gap: 1rem; align-items: flex-start;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.07);
  border-left: 3px solid var(--red);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  cursor: default;
  transition: background .25s, transform .25s, box-shadow .25s, border-color .25s;
}
.layer-item:hover { background: rgba(255,255,255,.06); transform: translateX(4px); }

/* Canvas dilimiyle senkron vurgu (cyan; Nano Seramik için kırmızı) */
.layer-item.is-active {
  background: rgba(125,227,255,.07);
  border-left-color: #7DE3FF;
  transform: translateX(4px);
  box-shadow: -3px 0 20px -6px rgba(125,227,255,.55);
}
.layer-item[data-layer="0"].is-active {
  background: rgba(225,29,42,.07);
  border-left-color: #E11D2A;
  box-shadow: -3px 0 20px -6px rgba(225,29,42,.55);
}
/* Metrik veri okuması (HTML'de de erişilebilir) */
.readout {
  display: block;
  margin-top: .5rem;
  font-family: "Saira Condensed", sans-serif;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: .78rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
}
.readout b { color: #7DE3FF; font-weight: 800; font-size: .95rem; margin-left: .15rem; }
.layer-item[data-layer="0"] .readout b { color: #E11D2A; }
.layer-num {
  flex-shrink: 0;
  width: 34px; height: 34px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(200,16,46,.16); color: var(--red);
  font-family: "Saira Condensed", sans-serif; font-weight: 800; font-size: 1.1rem;
}
.layer-item h3 { font-family: "Saira Condensed", sans-serif; font-weight: 700; text-transform: uppercase; color: #fff; font-size: 1.05rem; letter-spacing: .02em; }
.layer-item p { color: var(--muted); font-size: .88rem; line-height: 1.5; margin-top: .15rem; }

/* ----------------------------------------------------------------------------
   Garanti
---------------------------------------------------------------------------- */
.warranty-card-wrap {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.1);
  box-shadow: 0 30px 60px -30px rgba(0,0,0,.8);
  aspect-ratio: 1 / 1.05;
  background: var(--navy-dark);
}
.warranty-card-wrap img { transform: scale(1.04); }
.warranty-card-glow {
  position: absolute; inset: 0;
  background: radial-gradient(circle at 60% 70%, rgba(30,120,220,.25), transparent 55%);
  pointer-events: none;
}
.warranty-feature {
  background: linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  padding: 1.4rem;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.warranty-feature:hover { transform: translateY(-5px); border-color: rgba(200,16,46,.45); box-shadow: 0 16px 36px -20px rgba(200,16,46,.5); }
.warranty-feature h3 { font-family: "Saira Condensed", sans-serif; font-weight: 700; text-transform: uppercase; color: #fff; font-size: 1.1rem; margin: .7rem 0 .35rem; }
.warranty-feature p { color: var(--muted); font-size: .88rem; line-height: 1.5; }

/* ----------------------------------------------------------------------------
   Amerikan mühendisliği rozetleri
---------------------------------------------------------------------------- */
.badge-card {
  background: rgba(6,15,28,.6);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  padding: 1.3rem 1.1rem;
  text-align: left;
  backdrop-filter: blur(6px);
  transition: transform .3s, border-color .3s;
}
.badge-card:hover { transform: translateY(-5px); border-color: rgba(200,16,46,.5); }
.badge-card h3 { font-family: "Saira Condensed", sans-serif; font-weight: 700; text-transform: uppercase; color: #fff; font-size: 1rem; letter-spacing: .03em; line-height: 1.1; }

/* ----------------------------------------------------------------------------
   Neden Momentum
---------------------------------------------------------------------------- */
.why-item {
  position: relative;
  padding: .9rem 0 .9rem 2.4rem;
  border-bottom: 1px solid rgba(255,255,255,.07);
  color: var(--body);
  font-size: 1.02rem;
}
.why-item::before {
  content: "✓";
  position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 26px; height: 26px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(200,16,46,.16); color: var(--red);
  border-radius: 7px; font-weight: 800; font-size: .9rem;
}

/* ----------------------------------------------------------------------------
   Form
---------------------------------------------------------------------------- */
.form-card {
  background: linear-gradient(165deg, rgba(255,255,255,.06), rgba(255,255,255,.015));
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 18px;
  padding: 1.8rem;
  backdrop-filter: blur(8px);
}
.field { display: flex; flex-direction: column; }
.field label { font-size: .82rem; font-weight: 600; color: var(--body); margin-bottom: .35rem; letter-spacing: .02em; }
.req { color: var(--red); }
.field input, .field select, .field textarea {
  background: rgba(6,15,28,.6);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 9px;
  padding: .7rem .85rem;
  color: #fff;
  font-size: .92rem;
  transition: border-color .2s, box-shadow .2s;
  width: 100%;
}
.field input::placeholder, .field textarea::placeholder { color: #5b6b80; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(200,16,46,.18);
}
.field select option { background: var(--navy-dark); color: #fff; }
.err {
  display: none;
  color: #ff7585; font-size: .76rem; margin-top: .3rem;
}
.field.invalid .err, .err.show { display: block; }
.field.invalid input, .field.invalid select { border-color: #ff7585; }

.kvkk {
  display: flex; gap: .6rem; align-items: flex-start;
  margin-top: 1.2rem;
  font-size: .82rem; color: var(--muted); line-height: 1.45;
  cursor: pointer;
}
.kvkk input { margin-top: .15rem; width: 18px; height: 18px; accent-color: var(--red); flex-shrink: 0; }

.form-status {
  margin-top: .9rem; text-align: center; font-size: .9rem; font-weight: 600;
  display: none;
}
.form-status.show { display: block; }
.form-status.ok { color: #4ade80; }
.form-status.bad { color: #ff7585; }

/* ----------------------------------------------------------------------------
   İletişim satırları
---------------------------------------------------------------------------- */
.contact-line {
  display: flex; align-items: center; gap: 1rem;
  padding: .9rem 1.1rem;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px;
  background: rgba(255,255,255,.02);
  transition: border-color .25s, background .25s, transform .2s;
}
.contact-line:hover { border-color: rgba(200,16,46,.4); background: rgba(255,255,255,.05); transform: translateX(4px); }
.contact-line strong { color: #fff; font-weight: 600; }
.contact-ico { width: 46px; height: 46px; border-radius: 11px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }

/* ----------------------------------------------------------------------------
   SSS akordeon
---------------------------------------------------------------------------- */
.faq-item {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color .25s;
}
.faq-item.open { border-color: rgba(200,16,46,.45); }
.faq-q {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  text-align: left;
  padding: 1.15rem 1.3rem;
  font-family: "Saira Condensed", sans-serif;
  font-weight: 700; text-transform: uppercase; letter-spacing: .02em;
  font-size: 1.05rem; color: #fff;
  cursor: pointer;
}
.faq-icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(200,16,46,.16); color: var(--red);
  border-radius: 7px; font-size: 1.3rem; line-height: 1;
  transition: transform .3s, background .3s;
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--red); color: #fff; }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height .35s ease;
}
.faq-a p { padding: 0 1.3rem 1.2rem; color: var(--muted); line-height: 1.6; font-size: .94rem; }

/* ----------------------------------------------------------------------------
   Footer
---------------------------------------------------------------------------- */
.footer-h {
  font-family: "Saira Condensed", sans-serif;
  font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  color: #fff; font-size: 1rem; margin-bottom: 1rem;
}
.footer-list li { margin-bottom: .55rem; }
.footer-list a { color: var(--muted); font-size: .9rem; transition: color .2s; }
.footer-list a:hover { color: var(--red); }

/* ----------------------------------------------------------------------------
   Erişilebilirlik & hareket azaltma
---------------------------------------------------------------------------- */
:focus-visible { outline: 2px solid var(--red); outline-offset: 2px; border-radius: 4px; }

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