/* ============================================================
   Tr8 Textile — siyah/beyaz + buzlu cam (glassmorphism) tema
   Vurgu: beyaz. Bootstrap 5 üzerine özel katman.
   ============================================================ */

:root {
    --bg: #08080a;
    --bg-elev: #101013;
    --surface: rgba(255, 255, 255, 0.045);
    --surface-2: rgba(255, 255, 255, 0.075);
    --border: rgba(255, 255, 255, 0.11);
    --border-strong: rgba(255, 255, 255, 0.28);
    --text: #f4f4f5;
    --muted: #9a9aa0;
    --accent: #ffffff;
    --accent-2: #dcdce0;
    --accent-ink: #0a0a0b;
    --radius: 16px;
    --radius-sm: 10px;
    --maxw: 1180px;
    --blur: 16px;
    --serif: "Playfair Display", Georgia, "Times New Roman", serif;
    --sans: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
    margin: 0;
    color: var(--text);
    font-family: var(--sans);
    font-size: 1rem;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    background:
        radial-gradient(1000px 600px at 85% -5%, rgba(255,255,255,.06), transparent 60%),
        radial-gradient(800px 500px at 0% 100%, rgba(255,255,255,.04), transparent 55%),
        linear-gradient(180deg, #0b0b0d, #060607);
    background-attachment: fixed;
}

main { flex: 1 0 auto; }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; line-height: 1.15; letter-spacing: .01em; color: var(--text); }

a { color: var(--accent); text-decoration: none; transition: color .18s ease, opacity .18s ease; }
a:hover { color: var(--accent-2); }

.container-tr8 { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 20px; }

/* Buzlu cam yardımcı */
.glass {
    background: var(--surface);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--border);
}

/* ---------- Header / Nav ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(10, 10, 12, .55);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border-bottom: 1px solid var(--border);
}

.site-header .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-height: 70px;
}

.brand { font-family: var(--serif); font-size: 1.4rem; font-weight: 700; color: var(--text); letter-spacing: .02em; white-space: nowrap; display: inline-flex; align-items: center; }
.brand:hover { color: var(--text); }
/* "8" yatay (∞) — düz (sans-serif) font, büyük ve yaygın */
.brand .infinity {
    display: inline-block;
    font-family: var(--sans);
    transform: rotate(90deg) scale(1.3);
    font-size: 1.05em;
    font-weight: 700;
    color: var(--accent);
    margin: 0 .3em;
    vertical-align: middle;
}

.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a {
    color: var(--text);
    font-size: .95rem;
    letter-spacing: .02em;
    position: relative;
    padding: 6px 0;
    opacity: .82;
}
.main-nav a::after {
    content: "";
    position: absolute; left: 0; bottom: 0;
    width: 0; height: 1.5px; background: var(--accent);
    transition: width .22s ease;
}
.main-nav a:hover, .main-nav a.active { color: var(--accent); opacity: 1; }
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }

.nav-right { display: flex; align-items: center; gap: 16px; }

/* Dil seçici (cam) */
.lang-switch { display: inline-flex; gap: 4px; }
.lang-switch button {
    background: var(--surface);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    color: var(--muted);
    font-size: .74rem;
    letter-spacing: .06em;
    padding: 5px 9px;
    border-radius: 7px;
    cursor: pointer;
    transition: all .18s ease;
}
.lang-switch button:hover { color: var(--text); border-color: var(--border-strong); }
.lang-switch button.active { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 700; }

.nav-toggle { display: none; background: none; border: 0; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* ---------- Buttons ---------- */
.btn-accent, .btn-ghost {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    font-size: .95rem; font-weight: 600; letter-spacing: .02em;
    padding: 12px 24px; border-radius: 999px; cursor: pointer;
    transition: transform .15s ease, background .2s ease, border-color .2s ease, color .2s ease;
    border: 1px solid transparent;
}
.btn-accent { background: var(--accent); color: var(--accent-ink); }
.btn-accent:hover { background: var(--accent-2); color: var(--accent-ink); transform: translateY(-2px); }
.btn-ghost {
    background: var(--surface);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text); border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--border-strong); color: var(--accent); transform: translateY(-2px); }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    overflow: hidden;
    padding: 100px 0 108px;
}
.hero::after {
    content: "";
    position: absolute; inset: 0;
    background-image: radial-gradient(rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 22px 22px;
    pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; max-width: 700px; }
.hero .eyebrow { color: var(--muted); letter-spacing: .24em; text-transform: uppercase; font-size: .78rem; margin-bottom: 18px; }
.hero h1 { font-size: clamp(2.3rem, 5vw, 3.7rem); margin: 0 0 18px; }
.hero p { color: var(--muted); font-size: 1.12rem; margin: 0 0 30px; max-width: 560px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
.section { padding: 76px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 34px; }
.section-head .eyebrow { color: var(--muted); letter-spacing: .18em; text-transform: uppercase; font-size: .74rem; }
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 6px 0 0; }
.section-alt { background: rgba(255,255,255,.02); border-block: 1px solid var(--border); }

/* ---------- Grid & Cards (cam) ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
    background: var(--surface);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex; flex-direction: column;
    transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); box-shadow: 0 20px 44px rgba(0,0,0,.5); }
.card-body { padding: 18px 18px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-eyebrow { color: var(--muted); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }
.card h3 { font-size: 1.18rem; margin: 0; }
.card p { color: var(--muted); font-size: .92rem; margin: 0; }
.card .card-link { margin-top: auto; padding-top: 10px; color: var(--accent); font-size: .86rem; font-weight: 600; }
.card .card-link::after { content: " →"; }

/* ---------- Placeholder görsel (foto gelene kadar) — monokrom ---------- */
.thumb {
    position: relative;
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    background: linear-gradient(135deg, #1c1c20, #101012);
    overflow: hidden;
}
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb.placeholder::before {
    content: "";
    position: absolute; inset: 0;
    background:
        radial-gradient(140px 140px at 30% 25%, rgba(255,255,255,.14), transparent 60%),
        repeating-linear-gradient(45deg, rgba(255,255,255,.03) 0 2px, transparent 2px 9px);
}
.thumb .thumb-mark {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--serif); font-size: 2.6rem; color: rgba(255,255,255,.20);
}
.grid > *:nth-child(3n+2) .thumb { background: linear-gradient(135deg, #202024, #121214); }
.grid > *:nth-child(3n+3) .thumb { background: linear-gradient(135deg, #191919, #0e0e0f); }

/* ---------- Category tile (cam) ---------- */
.cat-tile {
    position: relative; border-radius: var(--radius); overflow: hidden;
    min-height: 200px; display: flex; align-items: flex-end;
    padding: 22px; border: 1px solid var(--border);
    background: var(--surface);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.cat-tile:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.cat-tile::before {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(320px 170px at 90% 0%, rgba(255,255,255,.10), transparent 60%);
}
.cat-tile .cat-name { position: relative; font-family: var(--serif); font-size: 1.35rem; color: var(--text); }

/* ---------- Product detail ---------- */
.detail-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: start; }
.detail-media .thumb { aspect-ratio: 1 / 1; border-radius: var(--radius); border: 1px solid var(--border); }
.detail-gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 10px; }
.detail-gallery .thumb { aspect-ratio: 1/1; border-radius: var(--radius-sm); }
.detail-body h1 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); margin: 6px 0 14px; }
.detail-body .lead { color: var(--muted); font-size: 1.08rem; }
.detail-desc { margin-top: 18px; color: var(--text); }

/* ---------- Forms (cam) ---------- */
.form-card {
    background: var(--surface);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--border); border-radius: var(--radius); padding: 28px;
}
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: 6px; letter-spacing: .02em; }
.form-control {
    width: 100%; background: rgba(255,255,255,.04); border: 1px solid var(--border);
    color: var(--text); border-radius: var(--radius-sm); padding: 11px 14px; font-size: .96rem;
    transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.form-control:focus { outline: none; border-color: var(--border-strong); background: rgba(255,255,255,.06); box-shadow: 0 0 0 3px rgba(255,255,255,.10); }
textarea.form-control { min-height: 130px; resize: vertical; }
.field-validation-error, .validation-summary-errors { color: #f0a9a0; font-size: .84rem; }
.alert-success {
    background: rgba(255,255,255,.06); border: 1px solid var(--border-strong);
    color: var(--text); border-radius: var(--radius-sm); padding: 14px 16px; margin-bottom: 20px;
}

.info-list { list-style: none; padding: 0; margin: 0; }
.info-list li { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); color: var(--muted); }
.info-list li span.label { color: var(--text); min-width: 84px; }

/* ---------- Footer ---------- */
.site-footer { background: rgba(0,0,0,.35); backdrop-filter: blur(var(--blur)); -webkit-backdrop-filter: blur(var(--blur)); border-top: 1px solid var(--border); padding: 54px 0 26px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 30px; }
.site-footer h4 { font-family: var(--sans); font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin: 0 0 14px; }
.site-footer .brand { font-size: 1.5rem; }
.site-footer p { color: var(--muted); font-size: .92rem; max-width: 320px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 9px; }
.footer-links a { color: var(--text); font-size: .92rem; opacity: .82; }
.footer-links a:hover { color: var(--accent); opacity: 1; }
.footer-bottom { margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--border); color: var(--muted); font-size: .82rem; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* Tasarımcı kredisi — beyaz, üzerine gelince parlar */
.credit { display: inline-flex; align-items: center; gap: 7px; color: #ffffff; font-weight: 600; letter-spacing: .01em; transition: color .2s ease, text-shadow .2s ease; }
.credit svg { width: 16px; height: 16px; transition: filter .2s ease; }
.credit:hover { color: #ffffff; text-shadow: 0 0 8px rgba(255,255,255,.8), 0 0 20px rgba(255,255,255,.5); }
.credit:hover svg { filter: drop-shadow(0 0 6px rgba(255,255,255,.85)); }

.muted { color: var(--muted); }
.empty-state { text-align: center; color: var(--muted); padding: 60px 0; }

/* ---------- Çerez bildirimi (buzlu cam) ---------- */
.cookie-banner {
    position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 1100;
    max-width: 760px; margin-inline: auto;
    display: flex; align-items: center; justify-content: space-between; gap: 18px;
    background: rgba(18, 18, 22, .72);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border); border-radius: 14px;
    padding: 14px 18px; color: var(--text); font-size: .9rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, .55);
    animation: cookieUp .3s ease;
}
@keyframes cookieUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.cookie-banner .btn-accent { padding: 9px 20px; font-size: .86rem; white-space: nowrap; }
@media (max-width: 520px) {
    .cookie-banner { flex-direction: column; align-items: stretch; text-align: center; }
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .main-nav { display: none; }
    .nav-toggle { display: block; }
    .site-header.open .main-nav {
        display: flex; position: absolute; top: 70px; left: 0; right: 0;
        flex-direction: column; gap: 0; background: rgba(12,12,14,.92); border-bottom: 1px solid var(--border); padding: 8px 20px 16px;
    }
    .site-header.open .main-nav a { padding: 12px 0; border-bottom: 1px solid var(--border); }
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero { padding: 72px 0 78px; }
}