/* =========================================================
   ENAFORM — Tasarım Token Sistemi
   Renk   : Fırın Lacivert / Çelik Mavisi / Galvaniz Gri /
            Sinyal Mavisi / Kıvılcım Turuncu / Fabrika Beyazı
   Tipografi: Fraunces (başlık) · Work Sans (metin) · IBM Plex Mono (teknik veri)
   ========================================================= */

:root {
  --navy: #0A1728;
  --navy-2: #101F35;
  --steel: #2B4C6F;
  --steel-light: #3E6690;
  --galvanized: #B8C2CC;
  --signal-blue: #4A90C2;
  --spark: #E76F35;
  --mill-white: #F2F4F6;
  --paper: #FBFBFA;
  --ink: #101820;
  --ink-soft: #4B5A66;

  --display-font: "Fraunces", Georgia, serif;
  --body-font: "Work Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono-font: "IBM Plex Mono", "Courier New", monospace;

  --max-w: 1180px;
  --edge: clamp(1.25rem, 4vw, 3.5rem);
  --radius: 4px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 17px; }

body {
  margin: 0;
  font-family: var(--body-font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-size: 1.05rem;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--display-font);
  font-weight: 600;
  line-height: 1.12;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

.eyebrow {
  font-family: var(--mono-font);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal-blue);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  margin-bottom: 1.1em;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--spark);
  display: inline-block;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: var(--edge);
  padding-right: var(--edge);
}

section { position: relative; }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.1rem var(--edge);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.3s ease, padding 0.3s ease, box-shadow 0.3s ease;
}
.nav.scrolled {
  background: rgba(10, 23, 40, 0.94);
  backdrop-filter: blur(6px);
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--display-font);
  font-weight: 600;
  font-size: 1.15rem;
  color: #fff;
}
.nav__brand svg { width: 26px; height: 26px; flex-shrink: 0; }
.nav__links {
  display: flex;
  gap: 2.1rem;
  list-style: none;
  margin: 0; padding: 0;
}
.nav__links a {
  color: var(--galvanized);
  font-size: 1.02rem;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}
.nav__links a:hover { color: #fff; }
.nav__cta {
  background: var(--spark);
  color: #fff !important;
  padding: 0.6rem 1.3rem;
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
}
.nav__cta:hover { background: #d15f28; }
.nav__toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  width: 30px; height: 22px; position: relative;
}
.nav__toggle span, .nav__toggle span::before, .nav__toggle span::after {
  content: ""; position: absolute; left: 0; width: 100%; height: 2px; background: #fff;
}
.nav__toggle span { top: 10px; }
.nav__toggle span::before { top: -8px; }
.nav__toggle span::after { top: 8px; }

/* ---------- Hero ---------- */
.hero {
  background: radial-gradient(ellipse at 78% 18%, #14283F 0%, var(--navy) 55%), var(--navy);
  color: #fff;
  padding: 9.5rem var(--edge) 5rem;
  overflow: hidden;
  position: relative;
}
.hero__grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2rem;
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.6rem, 4.8vw, 3.9rem);
  color: #fff;
}
.hero p.lede {
  font-size: 1.25rem;
  color: var(--galvanized);
  max-width: 46ch;
  margin: 0 0 2rem;
}
.hero__actions { display: flex; gap: 0.9rem; flex-wrap: wrap; margin-bottom: 2.6rem; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--spark); color: #fff; }
.btn--primary:hover { background: #d15f28; }
.btn--ghost { border-color: rgba(255,255,255,0.28); color: #fff; }
.btn--ghost:hover { border-color: #fff; }
.btn--dark { background: var(--navy); color: #fff; }
.btn--dark:hover { background: var(--navy-2); }

.hero__stats {
  display: flex;
  gap: 2.4rem;
  border-top: 1px solid rgba(255,255,255,0.14);
  padding-top: 1.6rem;
}
.hero__stats div strong {
  display: block;
  font-family: var(--mono-font);
  font-size: 1.5rem;
  color: #fff;
}
.hero__stats div span {
  font-size: 0.78rem;
  color: var(--galvanized);
}

/* Signature: engineering-drawing style U-profile */
.hero__figure {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.uprofile-mark {
  width: 100%;
  max-width: 380px;
  height: auto;
  animation: profile-sheen 7s ease-in-out infinite;
}
@keyframes profile-sheen {
  0%, 100% { filter: drop-shadow(0 0 0 rgba(74,144,194,0)); }
  50% { filter: drop-shadow(0 8px 24px rgba(74,144,194,0.25)); }
}
@media (prefers-reduced-motion: reduce) {
  .uprofile-mark { animation: none; }
}

/* ---------- Section shells ---------- */
.section { padding: 6rem 0; }
.section--dark { background: var(--navy); color: #fff; }
.section--steel { background: var(--steel); color: #fff; }
.section--light { background: var(--paper); }
.section--mill { background: var(--mill-white); }

.section__head {
  max-width: 640px;
  margin: 0 0 3rem;
}
.section__head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section--dark .eyebrow, .section--steel .eyebrow { color: #8FC1E8; }
.section--dark .eyebrow::before, .section--steel .eyebrow::before { background: var(--spark); }
.section--dark h2, .section--steel h2 { color: #fff; }
.section--dark p, .section--steel p { color: var(--galvanized); }

/* ---------- Hakkımızda ---------- */
.about__layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: start;
}
.about__text p { color: var(--ink-soft); margin: 0 0 1.1rem; }
.about__text strong { color: var(--ink); }
.about__photo {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.06);
  transition: box-shadow 0.25s ease;
}
.about__photo:hover { box-shadow: 0 14px 30px rgba(10,23,40,0.12); }
.about__photo img { width: 100%; height: 260px; object-fit: cover; }
.about__photo svg.illus { width: 100%; height: 260px; display: block; transition: transform 0.35s ease; }
.about__photo:hover svg.illus { transform: scale(1.04); }
.about__photo.photo-tall svg.illus { height: 320px; }
.about__photo figcaption {
  font-family: var(--mono-font);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.7rem 0.9rem;
  color: var(--ink-soft);
  background: #fff;
}

.vm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.vm-card {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.07);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.vm-card:hover {
  transform: translateY(-4px) scale(1.015);
  box-shadow: 0 14px 30px rgba(10,23,40,0.10);
  border-color: rgba(74,144,194,0.35);
}
.vm-card .eyebrow { color: var(--steel); }
.vm-card .eyebrow::before { background: var(--signal-blue); }
.vm-card p { color: var(--ink-soft); font-size: 1rem; margin: 0; }

/* ---------- Ürünler / spec plate ---------- */
.products__intro { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; margin-bottom: 3rem; }
.product-card {
  background: var(--navy-2);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.product-card:hover {
  transform: translateY(-4px) scale(1.015);
  box-shadow: 0 16px 34px rgba(0,0,0,0.35);
  border-color: rgba(74,144,194,0.45);
}
.product-card h3 { color: #fff; font-size: 1.4rem; }
.product-card p { color: var(--galvanized); font-size: 1.05rem; }
.product-card .tag {
  display: inline-block;
  font-family: var(--mono-font);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--spark);
  border: 1px solid rgba(231,111,53,0.4);
  padding: 0.25rem 0.55rem;
  border-radius: 3px;
  margin-bottom: 1rem;
}

.spec-plate {
  background: var(--navy-2);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 2.2rem var(--edge);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.spec-plate__item {
  padding: 0 1.5rem;
  border-left: 1px solid rgba(255,255,255,0.12);
  transition: transform 0.2s ease;
}
.spec-plate__item:hover { transform: translateY(-3px); }
.spec-plate__item:first-child { border-left: none; padding-left: 0; }
.spec-plate__item .label {
  font-family: var(--mono-font);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--galvanized);
  display: block;
  margin-bottom: 0.5rem;
}
.spec-plate__item .value {
  font-family: var(--mono-font);
  font-size: 1.3rem;
  color: #fff;
}
.spec-plate__item .value small { font-size: 0.8rem; color: var(--signal-blue); }

.product-photo-strip {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 1.2rem;
  margin-top: 3rem;
}
.product-photo-strip img {
  border-radius: var(--radius);
  height: 100%;
  object-fit: cover;
  width: 100%;
}
.photo-tall { height: 320px; }

/* ---------- Neden Enaform (calibration-mark checklist) ---------- */
.reasons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid rgba(0,0,0,0.08);
  border-left: 1px solid rgba(0,0,0,0.08);
}
.reason {
  padding: 2rem 1.8rem;
  border-right: 1px solid rgba(0,0,0,0.08);
  border-bottom: 1px solid rgba(0,0,0,0.08);
  transition: transform 0.25s ease, background 0.25s ease;
  position: relative;
}
.reason:hover {
  transform: scale(1.03);
  background: #fff;
  box-shadow: 0 12px 26px rgba(10,23,40,0.08);
  z-index: 1;
}
.reason .mark {
  font-family: var(--mono-font);
  color: var(--spark);
  font-size: 0.85rem;
  display: block;
  margin-bottom: 0.9rem;
}
.reason h4 { font-size: 1.05rem; margin-bottom: 0.4rem; }
.reason p { margin: 0; color: var(--ink-soft); font-size: 1.02rem; }

/* ---------- Kalite Politikası ---------- */
.quality-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.quality-item { text-align: left; transition: transform 0.25s ease; padding: 0.5rem; border-radius: var(--radius); }
.quality-item:hover { transform: translateY(-4px) scale(1.04); background: rgba(255,255,255,0.05); }
.quality-item .num {
  font-family: var(--mono-font);
  color: var(--spark);
  font-size: 0.78rem;
  display: block;
  margin-bottom: 0.6rem;
}
.quality-item h4 { color: #fff; font-size: 1.05rem; margin-bottom: 0.3rem; }
.quality-item p { color: var(--galvanized); font-size: 1rem; margin: 0; }

/* ---------- Değerlerimiz ---------- */
.values-list { display: grid; gap: 0; }
.value-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2rem;
  padding: 1.8rem 0.6rem;
  border-top: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--radius);
  transition: transform 0.2s ease, background 0.2s ease, padding-left 0.2s ease;
}
.value-row:hover {
  background: var(--mill-white);
  transform: translateX(4px);
}
.values-list .value-row:last-child { border-bottom: 1px solid rgba(0,0,0,0.08); }
.value-row h4 { margin: 0; font-size: 1.15rem; }
.value-row p { margin: 0; color: var(--ink-soft); }

/* ---------- İletişim ---------- */
.contact__layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 3rem;
}
.contact-field {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.6rem;
  align-items: flex-start;
}
.contact-field .label {
  font-family: var(--mono-font);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--signal-blue);
  width: 90px;
  flex-shrink: 0;
  padding-top: 0.2rem;
}
.contact-field .val { color: #fff; font-size: 1.15rem; }
.contact-field .val a:hover { color: var(--signal-blue); }

.map-embed {
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 2rem;
}
.map-embed iframe { width: 100%; height: 230px; border: 0; filter: grayscale(0.15) contrast(1.05); }

/* ---------- Footer ---------- */
.footer {
  background: var(--navy);
  color: var(--galvanized);
  padding: 3rem 0 2rem;
  font-size: 0.86rem;
}
.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer__brand { display: flex; align-items: center; gap: 0.6rem; color: #fff; font-family: var(--display-font); font-size: 1.1rem; }
.footer__brand svg { width: 22px; height: 22px; }
.footer__links { display: flex; gap: 1.6rem; list-style: none; padding: 0; margin: 0; }
.footer__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; color: #6E8098; }

/* ---------- Divider motif ---------- */
.divider-motif { display: flex; align-items: center; justify-content: center; gap: 0.8rem; margin: 0 0 2rem; opacity: 0.5; }
.divider-motif svg { width: 34px; height: 22px; }
.divider-motif .line { flex: 1; max-width: 80px; height: 1px; background: currentColor; opacity: 0.3; }

@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__figure { order: -1; max-width: 260px; margin: 0 auto 1rem; }
  .about__layout, .products__intro, .contact__layout { grid-template-columns: 1fr; }
  .vm-grid { grid-template-columns: 1fr; }
  .spec-plate { grid-template-columns: repeat(2, 1fr); row-gap: 1.6rem; }
  .spec-plate__item:nth-child(3) { border-left: none; padding-left: 0; }
  .reasons { grid-template-columns: repeat(2, 1fr); }
  .quality-row { grid-template-columns: repeat(2, 1fr); }
  .value-row { grid-template-columns: 1fr; gap: 0.4rem; }
  .product-photo-strip { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__toggle { display: block; }
  .nav.open .nav__links {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--navy);
    flex-direction: column;
    padding: 1.2rem var(--edge) 1.6rem;
    gap: 1rem;
  }
  .hero { padding-top: 7.5rem; }
  .hero__stats { flex-wrap: wrap; gap: 1.4rem; }
  .reasons { grid-template-columns: 1fr; }
  .quality-row { grid-template-columns: 1fr 1fr; }
  .footer__top { flex-direction: column; align-items: flex-start; }
}