/* Form & Light — общие стили для многостраничного сайта студии дизайна интерьеров */

:root {
  --beige: #f2ebe1;
  --beige-2: #e8dfd1;
  --card: #fbf7f0;
  --graphite: #2b2a28;
  --graphite-soft: #52504b;
  --muted: #7a766e;
  --terracotta: #c0603b;
  --terracotta-dark: #a24d2d;
  --line: rgba(43, 42, 40, 0.12);
  --shadow: 0 18px 50px rgba(43, 42, 40, 0.12);
  --radius: 18px;
  --radius-sm: 12px;
  --header-h: 68px;
  --container: 1160px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  color-scheme: light;
}

[data-theme="dark"] {
  --beige: #1a1917;
  --beige-2: #201e1b;
  --card: #262320;
  --graphite: #f1ece3;
  --graphite-soft: #c9c3b8;
  --muted: #9c968b;
  --terracotta: #d97a54;
  --terracotta-dark: #c0603b;
  --line: rgba(241, 236, 227, 0.14);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", sans-serif;
  color: var(--graphite);
  background: var(--beige);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  transition: background 0.4s var(--ease), color 0.4s var(--ease);
}

h1, h2, h3, h4 { line-height: 1.1; font-weight: 700; letter-spacing: -0.02em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.4rem, 7vw, 5.2rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
p { margin: 0 0 1em; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 clamp(18px, 4vw, 40px); }

.section { padding: clamp(64px, 9vw, 120px) 0; }
.section-head { max-width: 640px; margin-bottom: clamp(32px, 5vw, 56px); }
.eyebrow { text-transform: uppercase; letter-spacing: 0.22em; font-size: 0.72rem; font-weight: 600; color: var(--terracotta); margin-bottom: 14px; }
.lead { font-size: clamp(1.05rem, 2vw, 1.28rem); color: var(--graphite-soft); }
.muted { color: var(--muted); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 26px; border-radius: 100px; font-weight: 600; font-size: 1rem; border: 1.5px solid transparent; cursor: pointer; transition: transform 0.2s var(--ease), background 0.2s, color 0.2s, border-color 0.2s; }
.btn:focus-visible { outline: 3px solid var(--terracotta); outline-offset: 3px; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--terracotta); color: #fff; }
.btn-primary:hover { background: var(--terracotta-dark); }
.btn-ghost { border-color: var(--line); color: var(--graphite); background: transparent; }
.btn-ghost:hover { border-color: var(--terracotta); color: var(--terracotta); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  background: color-mix(in srgb, var(--beige) 72%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { font-weight: 700; font-size: 1.15rem; letter-spacing: -0.02em; }
.brand span { color: var(--terracotta); }
.main-nav { display: flex; gap: 6px; }
.main-nav a { padding: 8px 14px; border-radius: 100px; font-size: 0.96rem; color: var(--graphite-soft); transition: color 0.2s, background 0.2s; }
.main-nav a:hover { color: var(--graphite); }
.main-nav a.active { color: var(--terracotta); background: color-mix(in srgb, var(--terracotta) 12%, transparent); font-weight: 600; }
.main-nav a:focus-visible { outline: 3px solid var(--terracotta); outline-offset: 2px; }
.header-tools { display: flex; align-items: center; gap: 8px; }

.icon-btn { width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center; border-radius: 12px; border: 1px solid var(--line); background: transparent; color: var(--graphite); cursor: pointer; transition: background 0.2s, border-color 0.2s; }
.icon-btn:hover { border-color: var(--terracotta); color: var(--terracotta); }
.icon-btn:focus-visible { outline: 3px solid var(--terracotta); outline-offset: 2px; }
.theme-toggle .sun { display: none; }
[data-theme="dark"] .theme-toggle .sun { display: block; }
[data-theme="dark"] .theme-toggle .moon { display: none; }

.burger { display: none; }

/* Hero */
.hero { position: relative; padding: clamp(60px, 10vw, 130px) 0 clamp(48px, 7vw, 96px); overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background:
  radial-gradient(60% 60% at 78% 12%, color-mix(in srgb, var(--terracotta) 22%, transparent), transparent 70%),
  radial-gradient(50% 50% at 10% 90%, color-mix(in srgb, var(--graphite) 10%, transparent), transparent 70%); }
.hero-inner { max-width: 900px; }
.hero h1 { margin-bottom: 0.35em; }
.hero .lead { max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }

/* Grid helpers */
.grid { display: grid; gap: clamp(18px, 3vw, 28px); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Cards */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: transform 0.25s var(--ease), box-shadow 0.25s; }
.feature svg { width: 40px; height: 40px; color: var(--terracotta); margin-bottom: 16px; }
.feature h3 { margin-bottom: 8px; }
.feature p { margin: 0; color: var(--graphite-soft); }

/* Project cards / gallery blocks */
.project { display: block; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: var(--card); transition: transform 0.25s var(--ease), box-shadow 0.25s; cursor: pointer; text-align: left; padding: 0; font: inherit; color: inherit; width: 100%; }
.project:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.project:focus-visible { outline: 3px solid var(--terracotta); outline-offset: 3px; }
.project .thumb { height: 200px; }
.project .meta { padding: 18px 20px; }
.project .meta h3 { font-size: 1.15rem; margin: 0 0 4px; }
.project .meta span { color: var(--muted); font-size: 0.9rem; }

.thumb { position: relative; }
.thumb-1 { background: linear-gradient(135deg, #c9a98a, #8a6b52); }
.thumb-2 { background: linear-gradient(135deg, #d68a63, #a24d2d); }
.thumb-3 { background: linear-gradient(135deg, #8f9c8e, #5b6b5c); }
.thumb-4 { background: linear-gradient(135deg, #b7b2a6, #6f6a60); }
.thumb-5 { background: linear-gradient(135deg, #cbb7cf, #7d6a86); }
.thumb-6 { background: linear-gradient(135deg, #e0c58a, #b08a3c); }
.thumb-7 { background: linear-gradient(135deg, #8aa9b8, #4f6d7a); }
.thumb-8 { background: linear-gradient(135deg, #d9a2a2, #9c5a5a); }
.thumb-9 { background: linear-gradient(135deg, #a5bfa0, #5f7a58); }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; text-align: center; }
.stat .num { font-size: clamp(2.6rem, 6vw, 4.4rem); font-weight: 700; color: var(--terracotta); letter-spacing: -0.03em; line-height: 1; }
.stat .label { color: var(--graphite-soft); margin-top: 8px; }

/* Testimonials */
.quote { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.quote p { font-size: 1.05rem; }
.quote .author { display: flex; align-items: center; gap: 12px; margin-top: 18px; }
.avatar { width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; flex: none; }
.quote .author .name { font-weight: 600; }
.quote .author .role { color: var(--muted); font-size: 0.9rem; }

/* CTA band */
.cta { background: var(--graphite); color: var(--beige); border-radius: var(--radius); padding: clamp(40px, 6vw, 72px); text-align: center; }
[data-theme="dark"] .cta { background: #100f0e; }
.cta h2 { color: #fff; }
[data-theme="dark"] .cta h2 { color: var(--graphite); }
.cta p { color: rgba(255,255,255,0.72); max-width: 520px; margin: 0 auto 28px; }
[data-theme="dark"] .cta p { color: var(--graphite-soft); }

/* Filters */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; }
.filter { padding: 9px 18px; border-radius: 100px; border: 1.5px solid var(--line); background: transparent; color: var(--graphite-soft); cursor: pointer; font: inherit; font-size: 0.95rem; transition: all 0.2s; }
.filter:hover { border-color: var(--terracotta); color: var(--terracotta); }
.filter.active { background: var(--terracotta); border-color: var(--terracotta); color: #fff; }
.filter:focus-visible { outline: 3px solid var(--terracotta); outline-offset: 2px; }
.project.is-hidden { display: none; }

/* Modal */
.modal { position: fixed; inset: 0; z-index: 100; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal[aria-hidden="false"] { display: flex; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(20, 18, 16, 0.6); backdrop-filter: blur(4px); }
.modal-dialog { position: relative; background: var(--card); border-radius: var(--radius); max-width: 620px; width: 100%; max-height: 90vh; overflow: auto; box-shadow: var(--shadow); }
.modal-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; padding: 8px; }
.modal-gallery span { height: 90px; border-radius: 8px; }
.modal-body { padding: 24px 28px 28px; }
.modal-body h3 { margin-bottom: 6px; }
.modal-facts { display: flex; flex-wrap: wrap; gap: 20px; margin: 16px 0; }
.modal-facts div { font-size: 0.95rem; }
.modal-facts strong { display: block; color: var(--terracotta); font-size: 1.15rem; }
.modal-close { position: absolute; top: 12px; right: 12px; z-index: 2; background: rgba(0,0,0,0.35); color: #fff; border: none; }
.modal-close:hover { background: rgba(0,0,0,0.55); color: #fff; }

/* Services */
.service h3 { margin-bottom: 8px; }
.price { color: var(--terracotta); font-weight: 700; font-size: 1.2rem; }
.price small { color: var(--muted); font-weight: 400; font-size: 0.8rem; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; min-width: 520px; }
th, td { text-align: left; padding: 16px 18px; border-bottom: 1px solid var(--line); }
thead th { background: var(--beige-2); font-size: 0.95rem; }
tbody td { color: var(--graphite-soft); }
td.yes { color: var(--terracotta); font-weight: 700; }
td.no { color: var(--muted); }

/* Accordion */
.accordion { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.acc-item + .acc-item { border-top: 1px solid var(--line); }
.acc-head { width: 100%; text-align: left; background: transparent; border: none; padding: 20px 24px; font: inherit; font-weight: 600; font-size: 1.05rem; color: var(--graphite); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.acc-head:focus-visible { outline: 3px solid var(--terracotta); outline-offset: -3px; }
.acc-head .chevron { transition: transform 0.25s var(--ease); flex: none; }
.acc-head[aria-expanded="true"] .chevron { transform: rotate(180deg); }
.acc-panel { max-height: 0; overflow: hidden; transition: max-height 0.3s var(--ease); }
.acc-panel p { padding: 0 24px 20px; margin: 0; color: var(--graphite-soft); }

/* Timeline */
.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 4px; bottom: 4px; width: 2px; background: var(--line); }
.tl-item { position: relative; margin-bottom: 32px; }
.tl-item::before { content: ""; position: absolute; left: -28px; top: 4px; width: 14px; height: 14px; border-radius: 50%; background: var(--terracotta); box-shadow: 0 0 0 4px var(--beige); }
.tl-item .year { color: var(--terracotta); font-weight: 700; }
.tl-item h3 { margin: 2px 0 6px; }
.tl-item p { margin: 0; color: var(--graphite-soft); }

/* Team */
.member { text-align: center; }
.member .avatar { width: 88px; height: 88px; font-size: 1.6rem; margin: 0 auto 14px; }
.member h3 { font-size: 1.1rem; margin: 0 0 2px; }
.member p { margin: 0; color: var(--muted); }

/* Values */
.value h3 { margin-bottom: 6px; }
.value p { margin: 0; color: var(--graphite-soft); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: clamp(24px, 4vw, 48px); align-items: start; }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; font-size: 0.92rem; margin-bottom: 7px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 15px; border-radius: var(--radius-sm); border: 1.5px solid var(--line);
  background: var(--card); color: var(--graphite); font: inherit; transition: border-color 0.2s;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--terracotta); }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: #c0392b; }
.field .error { color: #c0392b; font-size: 0.82rem; margin-top: 6px; display: none; }
.field.invalid .error { display: block; }
.form-success { background: color-mix(in srgb, var(--terracotta) 14%, transparent); border: 1px solid var(--terracotta); border-radius: var(--radius-sm); padding: 16px 18px; color: var(--terracotta); font-weight: 600; margin-bottom: 18px; display: none; }
.form-success.show { display: block; }

.info-list { list-style: none; padding: 0; margin: 0 0 24px; }
.info-list li { padding: 12px 0; border-bottom: 1px solid var(--line); }
.info-list li span { display: block; color: var(--muted); font-size: 0.85rem; }
.info-list li strong { font-size: 1.05rem; }
.map { width: 100%; height: 220px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: var(--beige-2); padding: clamp(40px, 6vw, 64px) 0 32px; margin-top: 40px; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.footer-inner h4 { font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin-bottom: 14px; }
.footer-inner a { color: var(--graphite-soft); display: block; padding: 4px 0; }
.footer-inner a:hover { color: var(--terracotta); }
.footer-bottom { border-top: 1px solid var(--line); margin-top: 32px; padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; color: var(--muted); font-size: 0.9rem; }

.skip-link { position: absolute; left: -999px; top: 8px; background: var(--terracotta); color: #fff; padding: 10px 16px; border-radius: 8px; z-index: 200; }
.skip-link:focus { left: 8px; }

/* Responsive */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .burger { display: inline-flex; }
  .main-nav {
    position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; gap: 4px;
    background: var(--beige); border-bottom: 1px solid var(--line); padding: 16px 20px;
    transform: translateY(-120%); transition: transform 0.3s var(--ease); box-shadow: var(--shadow);
  }
  .main-nav.open { transform: translateY(0); }
  .main-nav a { padding: 12px 14px; }
}
@media (max-width: 560px) {
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; gap: 32px; }
  .footer-inner { grid-template-columns: 1fr; }
  .modal-gallery { grid-template-columns: repeat(2, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .btn:hover, .project:hover { transform: none; }
}