/* ==========================================================================
   ALTINEVİM MÜCEVHERAT VE KIYMETLİ MADENLER A.Ş. — Kurumsal Site Stilleri
   ========================================================================== */

:root {
  --ink: #0b1120;
  --ink-soft: #131c31;
  --ink-card: #16213a;
  --gold: #c9a227;
  --gold-bright: #e6c65c;
  --gold-pale: #f3e6bd;
  --paper: #faf8f2;
  --paper-alt: #f2eee2;
  --text-dark: #23293a;
  --text-muted: #5c6478;
  --text-light: #cfd4e2;
  --line-light: rgba(201, 162, 39, 0.35);
  --shadow: 0 18px 45px rgba(11, 17, 32, 0.12);
  --radius: 14px;
  --font-head: "Playfair Display", Georgia, serif;
  --font-body: "Inter", "Segoe UI", Helvetica, Arial, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--paper);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: min(1140px, 92%);
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   Tipografi
   -------------------------------------------------------------------------- */

h1,
h2,
h3,
h4 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gold);
}

.section-label::before {
  content: "";
  width: 36px;
  height: 1px;
  background: var(--gold);
}

.section-title {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  margin: 14px 0 18px;
}

.section-lead {
  color: var(--text-muted);
  max-width: 640px;
  font-size: 1.02rem;
}

.dark-section .section-title {
  color: #fff;
}

.dark-section .section-lead {
  color: var(--text-light);
}

/* --------------------------------------------------------------------------
   Üst Bar + Header
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 17, 32, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201, 162, 39, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-logo {
  height: 46px;
  width: auto;
  flex-shrink: 0;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}

.main-nav a {
  color: var(--text-light);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 6px 0;
  position: relative;
  transition: color 0.25s ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--gold-bright);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-light);
  border-radius: 8px;
  padding: 9px 11px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gold-bright);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle span + span {
  margin-top: 5px;
}

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

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

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

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  background:
    radial-gradient(ellipse 900px 480px at 78% 18%, rgba(201, 162, 39, 0.22), transparent 60%),
    radial-gradient(ellipse 700px 420px at 12% 88%, rgba(201, 162, 39, 0.1), transparent 55%),
    linear-gradient(160deg, #0b1120 0%, #131c31 55%, #0b1120 100%);
  color: #fff;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    115deg,
    transparent 0,
    transparent 120px,
    rgba(201, 162, 39, 0.05) 120px,
    rgba(201, 162, 39, 0.05) 121px
  );
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 48px;
  padding: 104px 0 112px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line-light);
  border-radius: 999px;
  padding: 7px 18px;
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold-pale);
  background: rgba(201, 162, 39, 0.08);
}

.hero h1 {
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  color: #fff;
  margin: 26px 0 20px;
}

.hero h1 em {
  font-style: italic;
  color: var(--gold-bright);
}

.hero p {
  color: var(--text-light);
  max-width: 560px;
  font-size: 1.06rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 36px;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-visual svg {
  width: min(360px, 80vw);
  filter: drop-shadow(0 24px 60px rgba(201, 162, 39, 0.25));
}

.hero-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(201, 162, 39, 0.22);
}

.hero-stat {
  padding: 26px 12px;
  text-align: center;
}

.hero-stat + .hero-stat {
  border-left: 1px solid rgba(201, 162, 39, 0.22);
}

.hero-stat strong {
  display: block;
  font-family: var(--font-head);
  font-size: 1.7rem;
  color: var(--gold-bright);
}

.hero-stat span {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-light);
}

/* --------------------------------------------------------------------------
   Butonlar
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.05em;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
  cursor: pointer;
  border: none;
}

.btn-gold {
  background: linear-gradient(120deg, var(--gold) 0%, var(--gold-bright) 100%);
  color: var(--ink);
  box-shadow: 0 12px 30px rgba(201, 162, 39, 0.35);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(201, 162, 39, 0.45);
}

.btn-outline {
  border: 1px solid var(--line-light);
  color: var(--gold-pale);
  background: transparent;
}

.btn-outline:hover {
  background: rgba(201, 162, 39, 0.12);
  color: var(--gold-bright);
}

.btn-outline-dark {
  border: 1.5px solid var(--gold);
  color: var(--ink);
  background: transparent;
}

.btn-outline-dark:hover {
  background: var(--gold);
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   Genel Bölümler
   -------------------------------------------------------------------------- */

.section {
  padding: 92px 0;
}

.section-head {
  margin-bottom: 52px;
}

.section-head.center {
  text-align: center;
}

.section-head.center .section-lead {
  margin-inline: auto;
}

.section-head.center .section-label::before {
  display: none;
}

.dark-section {
  background:
    radial-gradient(ellipse 800px 400px at 85% 10%, rgba(201, 162, 39, 0.14), transparent 60%),
    linear-gradient(165deg, #0b1120 0%, #131c31 100%);
  color: var(--text-light);
}

.alt-section {
  background: var(--paper-alt);
}

/* Kart ızgaraları */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 26px;
}

.card {
  background: #fff;
  border: 1px solid rgba(201, 162, 39, 0.22);
  border-radius: var(--radius);
  padding: 34px 28px;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 26px 55px rgba(11, 17, 32, 0.16);
}

.card .icon {
  width: 54px;
  height: 54px;
  margin-bottom: 20px;
}

.card h3 {
  font-size: 1.22rem;
  margin-bottom: 10px;
}

.card p {
  color: var(--text-muted);
  font-size: 0.94rem;
}

.dark-section .card {
  background: var(--ink-card);
  border-color: rgba(201, 162, 39, 0.28);
  box-shadow: none;
}

.dark-section .card h3 {
  color: var(--gold-pale);
}

.dark-section .card p {
  color: var(--text-light);
}

/* İki kolonlu tanıtım blokları */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.split-visual {
  display: flex;
  justify-content: center;
}

.split-visual svg {
  width: min(400px, 85vw);
}

.feature-list {
  list-style: none;
  margin-top: 26px;
  display: grid;
  gap: 16px;
}

.feature-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  color: var(--text-muted);
  font-size: 0.96rem;
}

.feature-list li::before {
  content: "";
  flex-shrink: 0;
  width: 9px;
  height: 9px;
  margin-top: 8px;
  background: var(--gold);
  transform: rotate(45deg);
}

.dark-section .feature-list li {
  color: var(--text-light);
}

/* Değer / ilke satırları */

.value-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 2px;
  background: rgba(201, 162, 39, 0.25);
  border: 1px solid rgba(201, 162, 39, 0.25);
  border-radius: var(--radius);
  overflow: hidden;
}

.value-cell {
  background: var(--paper);
  padding: 32px 26px;
}

.value-cell h3 {
  font-size: 1.08rem;
  margin-bottom: 8px;
}

.value-cell p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.value-cell .num {
  font-family: var(--font-head);
  color: var(--gold);
  font-size: 1.5rem;
  display: block;
  margin-bottom: 12px;
}

/* CTA bandı */

.cta-band {
  background:
    radial-gradient(ellipse 640px 320px at 20% 40%, rgba(201, 162, 39, 0.2), transparent 60%),
    linear-gradient(140deg, #0b1120, #1a2440);
  border-radius: calc(var(--radius) + 6px);
  padding: 64px 56px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border: 1px solid rgba(201, 162, 39, 0.3);
}

.cta-band h2 {
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  max-width: 560px;
}

.cta-band p {
  color: var(--text-light);
  margin-top: 10px;
  max-width: 520px;
}

/* --------------------------------------------------------------------------
   Sayfa başlığı (alt sayfalar)
   -------------------------------------------------------------------------- */

.page-hero {
  background:
    radial-gradient(ellipse 760px 380px at 80% 0%, rgba(201, 162, 39, 0.2), transparent 60%),
    linear-gradient(160deg, #0b1120 0%, #131c31 100%);
  color: #fff;
  padding: 84px 0 72px;
  border-bottom: 1px solid rgba(201, 162, 39, 0.25);
}

.page-hero .breadcrumb {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-pale);
  margin-bottom: 18px;
}

.page-hero .breadcrumb a:hover {
  color: var(--gold-bright);
}

.page-hero h1 {
  color: #fff;
  font-size: clamp(2rem, 4.4vw, 3rem);
}

.page-hero p {
  color: var(--text-light);
  max-width: 640px;
  margin-top: 16px;
  font-size: 1.04rem;
}

/* --------------------------------------------------------------------------
   Zaman çizelgesi (Hakkımızda)
   -------------------------------------------------------------------------- */

.timeline {
  position: relative;
  display: grid;
  gap: 34px;
  padding-left: 34px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(var(--gold), rgba(201, 162, 39, 0.15));
}

.timeline-item {
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 8px;
  width: 11px;
  height: 11px;
  background: var(--gold);
  transform: rotate(45deg);
}

.timeline-item h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.timeline-item p {
  color: var(--text-muted);
  font-size: 0.94rem;
  max-width: 620px;
}

/* --------------------------------------------------------------------------
   İletişim
   -------------------------------------------------------------------------- */

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 44px;
  align-items: start;
}

.info-card {
  background: #fff;
  border: 1px solid rgba(201, 162, 39, 0.25);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px 32px;
}

.info-card h3 {
  font-size: 1.2rem;
  margin-bottom: 20px;
}

.info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 0;
  border-bottom: 1px solid rgba(201, 162, 39, 0.16);
}

.info-item:last-child {
  border-bottom: none;
}

.info-item .icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.info-item strong {
  display: block;
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold);
  margin-bottom: 4px;
}

.info-item span {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.contact-form {
  background: #fff;
  border: 1px solid rgba(201, 162, 39, 0.25);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px 32px;
}

.contact-form h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.contact-form > p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
  color: var(--ink);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid rgba(11, 17, 32, 0.18);
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 0.94rem;
  color: var(--text-dark);
  background: var(--paper);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.18);
}

.map-wrap {
  margin-top: 64px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(201, 162, 39, 0.3);
  box-shadow: var(--shadow);
}

.map-wrap iframe {
  display: block;
  width: 100%;
  height: 420px;
  border: 0;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  background: var(--ink);
  color: var(--text-light);
  border-top: 1px solid rgba(201, 162, 39, 0.3);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 48px;
}

.footer-brand p {
  font-size: 0.9rem;
  margin-top: 18px;
  max-width: 340px;
  color: #9aa3b8;
}

.footer-col h4 {
  color: var(--gold-bright);
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
  display: grid;
  gap: 12px;
}

.footer-col a {
  color: #9aa3b8;
  font-size: 0.92rem;
  transition: color 0.25s ease;
}

.footer-col a:hover {
  color: var(--gold-bright);
}

.footer-col address {
  font-style: normal;
  color: #9aa3b8;
  font-size: 0.92rem;
  line-height: 1.9;
}

.footer-bottom {
  border-top: 1px solid rgba(201, 162, 39, 0.18);
  padding: 22px 0;
  font-size: 0.8rem;
  color: #7d879e;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
}

/* --------------------------------------------------------------------------
   Scroll animasyonları
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --------------------------------------------------------------------------
   404
   -------------------------------------------------------------------------- */

.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  text-align: center;
}

.error-page .code {
  font-family: var(--font-head);
  font-size: clamp(4.5rem, 12vw, 8rem);
  color: var(--gold);
  line-height: 1;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
    padding: 72px 0 84px;
    text-align: center;
  }

  .hero p {
    margin-inline: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .hero-visual svg {
    width: min(240px, 60vw);
  }

  .split {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

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

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(11, 17, 32, 0.98);
    border-bottom: 1px solid rgba(201, 162, 39, 0.3);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .main-nav.open {
    max-height: 380px;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 6vw 22px;
  }

  .main-nav li {
    width: 100%;
  }

  .main-nav a {
    display: block;
    padding: 13px 0;
    font-size: 1rem;
  }

  .brand-logo {
    height: 38px;
  }

  .section {
    padding: 68px 0;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .hero-stat + .hero-stat {
    border-left: none;
    border-top: 1px solid rgba(201, 162, 39, 0.22);
  }

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

  .cta-band {
    padding: 44px 30px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }
}