/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}
:root {
    --bg: #0a0a0a;
    --bg-2: #121212;
    --bg-3: #181818;
    --card: #161616;
    --border: #262626;
    --text: #f0f0f0;
    --text-2: #9a9a9a;
    --text-3: #8a8a8a;
    --accent: #c8995a;
    --accent-soft: rgba(200, 153, 90, 0.15);
    --accent-glow: rgba(200, 153, 90, 0.35);
    --radius: 14px;
    --max: 1200px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    max-width: 100%;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: 'Playfair Display', Georgia, serif; font-weight: 600; line-height: 1.15; }
a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; display: block; }
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 28px; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    font-family: 'Inter', sans-serif; font-weight: 600; font-size: 15px;
    padding: 14px 28px; border: none; border-radius: 50px; cursor: pointer;
    transition: all 0.35s var(--ease); letter-spacing: 0.3px;
    white-space: normal;
}
.btn-sm { padding: 10px 20px; font-size: 13px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--accent); color: #1a1208; }
.btn-primary:hover { background: #d9a868; transform: translateY(-2px); box-shadow: 0 10px 30px var(--accent-glow); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ===== Header ===== */
#header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 18px 0; transition: all 0.4s var(--ease);
    background: linear-gradient(180deg, rgba(10,10,10,0.85), transparent);
}
#header.scrolled {
    background: rgba(10, 10, 10, 0.92);
    backdrop-filter: blur(14px);
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-width: 0; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; letter-spacing: 1.5px; flex-shrink: 0; }
.logo-mark {
    width: 26px; height: 26px; border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, #d9a868, var(--accent) 50%, #6b4a22 100%);
    box-shadow: 0 0 12px var(--accent-glow); flex-shrink: 0;
}
.logo-accent { color: var(--accent); }
#nav { display: flex; gap: 32px; }
#nav a { font-size: 14px; color: var(--text-2); transition: color 0.3s; font-weight: 500; white-space: nowrap; }
#nav a:hover { color: var(--accent); }
#menuToggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; flex-shrink: 0; }
#menuToggle span { width: 24px; height: 2px; background: var(--text); transition: 0.3s; }

/* ===== Hero ===== */
#hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; }
.hero-video-wrap { position: absolute; inset: 0; z-index: 0; }
.hero-video { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(270deg, rgba(10,10,10,0.92) 0%, rgba(10,10,10,0.7) 45%, rgba(10,10,10,0.4) 100%);
}
.hero-content {
    position: relative; z-index: 2; max-width: 680px; padding-top: 80px;
    margin-left: auto; text-align: right;
    display: flex; flex-direction: column; align-items: flex-end;
}
.hero-eyebrow {
    color: var(--accent); font-size: 13px; font-weight: 600; letter-spacing: 3px;
    text-transform: uppercase; margin-bottom: 22px;
}
#hero h1 { font-size: clamp(2.4rem, 6vw, 4.6rem); margin-bottom: 24px; line-height: 1.1; }
.hero-sub { font-size: clamp(1rem, 1.6vw, 1.25rem); color: var(--text-2); max-width: 560px; margin-bottom: 38px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; justify-content: flex-end; }
.scroll-hint {
    position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
    z-index: 2; color: var(--text-3); font-size: 11px; letter-spacing: 3px;
    text-transform: uppercase; display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.scroll-hint span { width: 1px; height: 40px; background: linear-gradient(var(--accent), transparent); animation: scrollPulse 2s infinite; }
@keyframes scrollPulse { 0%,100% { opacity: 0.3; } 50% { opacity: 1; } }

/* ===== Section Heads ===== */
section { padding: 110px 0; position: relative; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 70px; }
.section-eyebrow {
    color: var(--accent); font-size: 12px; font-weight: 600; letter-spacing: 3px;
    text-transform: uppercase; margin-bottom: 18px;
}
.section-head h2 { font-size: clamp(2rem, 4vw, 3.2rem); margin-bottom: 18px; }
.section-lead { color: var(--text-2); font-size: 1.1rem; }

/* ===== Collections ===== */
#collections { background: var(--bg-2); }
.collections-stage {
    display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center;
}
.stage-image {
    position: relative; border-radius: var(--radius); overflow: hidden;
    aspect-ratio: 4/5; background: var(--bg-3);
}
#collectionImage {
    width: 100%; height: 100%; object-fit: cover; object-position: left center;
    transition: filter 0.7s var(--ease), transform 0.7s var(--ease);
}
.stage-frame {
    position: absolute; inset: 16px; border: 1px solid rgba(200,153,90,0.25);
    border-radius: 8px; pointer-events: none; z-index: 2;
}
.stage-image::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(10,10,10,0.6));
    z-index: 1; pointer-events: none;
}
.stage-tabs { display: flex; flex-direction: column; gap: 4px; }
.tab {
    display: flex; flex-direction: column; gap: 4px; text-align: left;
    padding: 20px 22px; background: transparent; border: 1px solid transparent;
    border-radius: 12px; cursor: pointer; transition: all 0.35s var(--ease);
    color: var(--text-2);
}
.tab:hover { background: var(--card); color: var(--text); }
.tab.active { background: var(--card); border-color: var(--border); color: var(--text); }
.tab-dot { width: 14px; height: 14px; border-radius: 50%; background: var(--c); border: 1px solid rgba(255,255,255,0.2); margin-bottom: 6px; }
.tab-name {
    display: inline-flex;
    align-items: baseline;
    gap: 0;
}
.series-brand {
    font-family: 'Great Vibes', 'Brush Script MT', 'Snell Roundhand', cursive;
    color: #d4d4d8;
    font-size: 1.9rem;
    line-height: 1;
    text-shadow: 0 0 16px rgba(212, 212, 216, 0.25);
    margin-right: 10px;
}
.series-letter {
    font-family: 'Bebas Neue', 'Oswald', 'Arial Narrow', sans-serif;
    color: #d4d4d8;
    font-size: 1.55rem;
    letter-spacing: 2px;
    line-height: 1;
}
.series-suffix {
    font-family: 'Bebas Neue', 'Oswald', 'Arial Narrow', sans-serif;
    color: #5a5a60;
    font-size: 0.95rem;
    letter-spacing: 1px;
    line-height: 1;
}
.tab-desc { font-size: 14px; color: var(--text-2); }

/* Tab inline image (mobile only; hidden on desktop) */
.tab-image { display: none; }

/* Series filters */
.ser-black  { filter: brightness(0.55) contrast(1.35) saturate(0.6); }
.ser-weaved { filter: brightness(0.75) contrast(1.5) saturate(0.85); }
.ser-raw    { filter: brightness(1.05) contrast(1.05) saturate(0.15); }
.ser-veneer { filter: sepia(0.5) saturate(1.6) hue-rotate(-12deg) brightness(0.92) contrast(1.1); }

/* ===== Customization ===== */
#customization { background: var(--bg); }
.custom-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.custom-col {
    border-radius: var(--radius); padding: 44px 38px; border: 1px solid var(--border);
    background: var(--card); position: relative; overflow: hidden;
}
.custom-advanced {
    border-color: var(--accent); background: linear-gradient(160deg, rgba(200,153,90,0.06), var(--card) 50%);
}
.custom-advanced::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--accent);
}
.custom-header { margin-bottom: 30px; }
.custom-tier {
    display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 2px;
    text-transform: uppercase; padding: 5px 12px; border-radius: 20px;
    background: var(--bg-3); color: var(--text-2); margin-bottom: 16px;
}
.custom-tier.advanced { background: var(--accent-soft); color: var(--accent); }
.custom-header h3 { font-size: 1.7rem; margin-bottom: 8px; }
.custom-note { color: var(--text-2); font-size: 14px; }
.custom-list { list-style: none; display: flex; flex-direction: column; gap: 16px; }
.custom-list li { display: flex; align-items: center; gap: 14px; font-size: 15px; }
.ic { width: 8px; height: 8px; border-radius: 50%; background: var(--text-3); flex-shrink: 0; }
.ic.advanced { background: var(--accent); box-shadow: 0 0 8px var(--accent-glow); }

/* ===== Partnership ===== */
#partnership { background: var(--bg-2); }
.support-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 60px; }
.support-card {
    background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 34px 28px; transition: all 0.4s var(--ease);
}
.support-card:hover { transform: translateY(-6px); border-color: var(--accent); }
.support-ic { font-size: 30px; margin-bottom: 18px; }
.support-card h3 { font-size: 1.3rem; margin-bottom: 10px; }
.support-card p { color: var(--text-2); font-size: 14px; }
.partnership-cta {
    text-align: center; padding: 56px 30px; border-radius: var(--radius);
    background: linear-gradient(160deg, rgba(200,153,90,0.1), transparent);
    border: 1px solid var(--border);
}
.partnership-cta h3 { font-size: 1.9rem; margin-bottom: 24px; }

/* ===== Footer ===== */
#contact { background: var(--bg); padding: 80px 0 0; border-top: 1px solid var(--border); }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1.2fr; gap: 48px; padding-bottom: 56px; }
.footer-brand .logo { margin-bottom: 20px; color: var(--text); }
.footer-brand .logo:hover { color: var(--accent); }
.footer-brand p { color: var(--text-2); font-size: 14px; max-width: 340px; }
.footer-col h4 { font-size: 13px; letter-spacing: 2px; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; font-family: 'Inter', sans-serif; font-weight: 600; }
.footer-col a, .footer-col button { display: block; margin-bottom: 12px; color: var(--text-2); font-size: 14px; transition: color 0.3s; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--border); padding: 24px 0; }
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.footer-bottom p { color: var(--text-3); font-size: 13px; }
.footer-tag { color: var(--text-3); font-size: 12px; }

/* ===== Modal ===== */
.modal-overlay {
    position: fixed; inset: 0; z-index: 200; background: rgba(5,5,5,0.85);
    backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center;
    padding: 24px; opacity: 0; visibility: hidden; transition: all 0.4s var(--ease);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
    background: var(--bg-2); border: 1px solid var(--border); border-radius: 18px;
    width: 100%; max-width: 540px; padding: 44px 40px; position: relative;
    transform: translateY(20px) scale(0.97); transition: all 0.4s var(--ease);
    max-height: 92vh; overflow-y: auto;
}
.modal-overlay.open .modal { transform: translateY(0) scale(1); }
.modal-close {
    position: absolute; top: 18px; right: 18px; background: var(--bg-3); border: none;
    width: 36px; height: 36px; border-radius: 50%; color: var(--text-2); cursor: pointer;
    font-size: 16px; transition: all 0.3s;
}
.modal-close:hover { background: var(--accent); color: #1a1208; }
.modal h2 { font-size: 1.9rem; margin-bottom: 8px; }
.modal-lead { color: var(--text-2); margin-bottom: 28px; font-size: 15px; }
.field { margin-bottom: 18px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 7px; font-weight: 500; }
.field input, .field textarea {
    width: 100%; background: var(--bg-3); border: 1px solid var(--border); border-radius: 9px;
    padding: 12px 14px; color: var(--text); font-family: inherit; font-size: 15px; transition: border-color 0.3s;
    resize: vertical;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); }
.form-note { text-align: center; color: var(--text-3); font-size: 12px; margin-top: 16px; }

/* ===== Reveal Animation ===== */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ===== Responsive: single breakpoint at 980px =====
   Below 980 (tablets portrait + phones) = full mobile layout.
   No intermediate gap; iPad 768 falls cleanly into mobile. */
@media (max-width: 980px) {
    /* Header: hamburger nav, hide desktop CTA button */
    #nav {
        position: fixed; top: 0; right: -100%; width: 75%; max-width: 320px; height: 100vh;
        background: var(--bg-2); flex-direction: column; justify-content: center;
        gap: 28px; padding: 40px; transition: right 0.4s var(--ease); border-left: 1px solid var(--border);
        z-index: 99;
    }
    #nav.open { right: 0; }
    #nav a { font-size: 18px; }
    #menuToggle { display: flex; z-index: 101; }
    #menuToggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    #menuToggle.open span:nth-child(2) { opacity: 0; }
    #menuToggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .header-inner .partner-trigger { display: none; }

    /* Section spacing */
    section { padding: 80px 0; }

    /* Hero: left-aligned content on mobile */
    .hero-content { padding-top: 100px; margin-left: 0; text-align: left; align-items: flex-start; }
    .hero-cta { flex-direction: column; width: 100%; }
    .hero-cta .btn { width: 100%; }

    /* Collections: single column, per-tab inline image */
    .collections-stage { grid-template-columns: 1fr; gap: 20px; }
    .stage-image { display: none; }
    .stage-tabs { gap: 8px; }
    .tab-image {
        display: block; max-height: 0; opacity: 0; overflow: hidden;
        margin-bottom: 0; transform: translateY(16px);
        transition: max-height 0.55s var(--ease), opacity 0.45s var(--ease), transform 0.5s var(--ease), margin-bottom 0.5s var(--ease);
    }
    .tab-image img {
        width: 100%; display: block; aspect-ratio: 16/10; object-fit: cover; object-position: left center; border-radius: 10px;
    }
    .tab.active .tab-image {
        max-height: 380px; opacity: 1; transform: translateY(0); margin-bottom: 16px;
    }

    /* Grids: single column */
    .custom-grid { grid-template-columns: 1fr; }
    .support-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom .container { flex-direction: column; text-align: center; }

    /* Modal & forms */
    .field-row { grid-template-columns: 1fr; }
    .modal { padding: 36px 24px; }
    .custom-col { padding: 34px 26px; }
}