/* Koltozora — ювелірна майстерня. Базові стилі сайту. */

:root {
  --gold: #b7935c;
  --gold-dark: #8a6a3a;
  --gold-light: #e7d8bf;
  --black: #1b1816;
  --cream: #faf6ef;
  --cream-dark: #f1e9db;
  --white: #ffffff;
  --text: #2b2621;
  --muted: #6b6258;
  --border: #e3d9c8;
  --font-head: Georgia, 'Times New Roman', Times, serif;
  --font-body: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --radius: 4px;
  --shadow: 0 10px 30px rgba(27, 24, 22, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--cream);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--gold-dark); text-decoration: none; }
a:hover { color: var(--gold); }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--black);
  margin: 0 0 16px;
  line-height: 1.25;
  font-weight: 400;
  letter-spacing: 0.3px;
}

h1 { font-size: clamp(32px, 5vw, 54px); }
h2 { font-size: clamp(26px, 3.4vw, 38px); }
h3 { font-size: 22px; }

p { margin: 0 0 16px; color: var(--muted); }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 88px 0; }
.section--tight { padding: 56px 0; }
.section--cream { background: var(--cream-dark); }
.section--dark { background: var(--black); color: #efe8da; }
.section--dark h2, .section--dark h3 { color: var(--white); }
.section--dark p { color: #c9bfae; }

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 12px;
  color: var(--gold-dark);
  font-weight: 600;
  margin-bottom: 14px;
}

.section-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.section-head p { font-size: 17px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  font-family: var(--font-body);
}
.btn-primary { background: var(--gold); color: var(--white); border-color: var(--gold); }
.btn-primary:hover { background: var(--gold-dark); border-color: var(--gold-dark); color: var(--white); }
.btn-outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.6); }
.btn-outline:hover { background: rgba(255,255,255,0.12); color: var(--white); }
.btn-dark { background: var(--black); color: var(--white); border-color: var(--black); }
.btn-dark:hover { background: #312b26; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 246, 239, 0.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(140%) blur(6px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: 1180px;
  margin: 0 auto;
}
.logo {
  font-family: var(--font-head);
  font-size: 24px;
  letter-spacing: 2px;
  color: var(--black);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo span {
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold-dark);
  font-weight: 600;
}
.main-nav { display: flex; align-items: center; gap: 34px; }
.main-nav a {
  color: var(--text);
  font-size: 14px;
  letter-spacing: 0.3px;
  position: relative;
}
.main-nav a.active { color: var(--gold-dark); }
.main-nav a:hover { color: var(--gold-dark); }
.header-actions { display: flex; align-items: center; gap: 20px; }
.phone-link { font-weight: 600; color: var(--black); font-size: 15px; white-space: nowrap; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--black);
  margin: 5px 0;
  transition: 0.25s;
}

@media (max-width: 880px) {
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .main-nav.open { max-height: 420px; }
  .main-nav a { width: 100%; padding: 14px 24px; border-top: 1px solid var(--border); }
  .nav-toggle { display: block; }
  .header-actions .phone-link { display: none; }
}

/* Hero */
.hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: center;
  color: var(--white);
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(20,17,15,0.78) 0%, rgba(20,17,15,0.45) 55%, rgba(20,17,15,0.25) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 620px; padding: 0 24px; margin: 0 auto; }
.hero-content .eyebrow { color: var(--gold-light); }
.hero h1 { color: var(--white); margin-bottom: 20px; }
.hero p { color: #e9e2d4; font-size: 18px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; margin-top: 28px; flex-wrap: wrap; }

.page-banner {
  position: relative;
  min-height: 360px;
  display: flex;
  align-items: center;
  color: var(--white);
  background-size: cover;
  background-position: center;
}
.page-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(20, 17, 15, 0.62);
}
.page-banner-content { position: relative; z-index: 2; max-width: 720px; margin: 0 auto; padding: 0 24px; text-align: center; }
.page-banner h1 { color: var(--white); margin-bottom: 10px; }
.breadcrumb { font-size: 13px; letter-spacing: 0.5px; color: #d8cfbd; }
.breadcrumb a { color: #f1e9da; }

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.feature { text-align: center; padding: 10px; }
.feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--cream-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-dark);
}
.feature h3 { font-size: 17px; margin-bottom: 8px; }
.feature p { font-size: 14px; margin: 0; }

/* Category / product grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.cards-grid--3 { grid-template-columns: repeat(3, 1fr); }
.category-card, .product-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.category-card:hover, .product-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.category-card img, .product-card img { aspect-ratio: 1/1; object-fit: cover; width: 100%; }
.category-card-body, .product-card-body { padding: 18px 20px 22px; text-align: center; }
.category-card-body h3 { margin-bottom: 6px; }
.category-card-body p { font-size: 13px; margin: 0; }
.product-card-body { text-align: left; }
.product-price { color: var(--gold-dark); font-weight: 700; font-size: 17px; margin-bottom: 14px; display: block; }
.product-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--gold-dark);
  background: var(--gold-light);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}

/* Filter tabs */
.filter-tabs {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.filter-tabs button {
  background: var(--white);
  border: 1px solid var(--border);
  padding: 10px 22px;
  border-radius: 30px;
  font-size: 13px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--text);
  transition: 0.2s ease;
}
.filter-tabs button.active, .filter-tabs button:hover {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

/* Split content */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.split img { border-radius: var(--radius); box-shadow: var(--shadow); }
.split-reverse .split-media { order: 2; }

.two-col-images { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 20px; }
.two-col-images img { border-radius: var(--radius); height: 100%; object-fit: cover; }

/* Values */
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.value-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 22px;
  text-align: center;
}
.value-card .feature-icon { background: var(--cream-dark); }

/* Steps */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; counter-reset: step; }
.step { position: relative; padding-top: 10px; }
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-head);
  font-size: 34px;
  color: var(--gold);
  display: block;
  margin-bottom: 10px;
}

/* Testimonials */
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.testimonial {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
}
.testimonial p { font-style: italic; color: var(--text); }
.testimonial-name { font-weight: 700; color: var(--black); font-size: 14px; }
.testimonial-role { font-size: 12px; color: var(--muted); }
.stars { color: var(--gold); letter-spacing: 2px; margin-bottom: 10px; display: block; }

/* Forms */
.form-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { margin-bottom: 18px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--cream);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text);
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--gold);
  background: var(--white);
}
.form-field textarea { min-height: 120px; resize: vertical; }
.form-note { font-size: 12px; color: var(--muted); margin-top: 10px; }
.hp-field { position: absolute; left: -9999px; top: -9999px; opacity: 0; height: 0; width: 0; }

.form-status {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  display: none;
}
.form-status.show { display: block; }
.form-status.ok { background: #e7f3e5; color: #2f5d2a; border: 1px solid #bfe0ba; }
.form-status.error { background: #fbe8e6; color: #8a2b22; border: 1px solid #f1bdb6; }

/* Contacts */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 50px; }
.contact-info-item { display: flex; gap: 16px; margin-bottom: 26px; }
.contact-info-item .icon {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--cream-dark); color: var(--gold-dark);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-info-item h4 { margin: 0 0 4px; font-family: var(--font-body); font-size: 15px; color: var(--black); font-weight: 700; }
.contact-info-item p { margin: 0; font-size: 14px; }
.map-shot { border-radius: var(--radius); overflow: hidden; margin-top: 10px; box-shadow: var(--shadow); }

/* CTA band */
.cta-band {
  background: var(--black);
  color: var(--white);
  text-align: center;
  padding: 70px 24px;
}
.cta-band h2 { color: var(--white); }
.cta-band p { color: #cfc5b3; }

/* Legal pages */
.legal-content h2 { margin-top: 36px; }
.legal-content ul { color: var(--muted); padding-left: 20px; }
.legal-content li { margin-bottom: 8px; }
.updated-note { font-size: 13px; color: var(--muted); margin-bottom: 36px; }

/* Footer */
.site-footer { background: var(--black); color: #cfc5b3; padding: 64px 0 24px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-grid h4 {
  color: var(--white);
  font-family: var(--font-body);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 18px;
}
.footer-logo { font-family: var(--font-head); font-size: 24px; color: var(--white); letter-spacing: 2px; }
.footer-grid p, .footer-grid a { color: #b6ab98; font-size: 14px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 10px; }
.footer-grid a:hover { color: var(--gold); }
.social-row { display: flex; gap: 10px; margin-top: 18px; }
.social-row a {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.25);
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
}
.social-row a:hover { background: var(--gold); border-color: var(--gold); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 22px;
  font-size: 13px;
  color: #93897a;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom a { color: #93897a; }
.footer-bottom a:hover { color: var(--gold); }

/* Responsive */
@media (max-width: 960px) {
  .features-grid, .cards-grid, .values-grid, .steps-grid, .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
  .split, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .split-reverse .split-media { order: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .two-col-images { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .features-grid, .cards-grid, .values-grid, .steps-grid, .testimonial-grid, .cards-grid--3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .hero { min-height: 92vh; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}