/* ═══════════════════════════════════════════
   kyzento.shop — Multi-Frame Layout · 94
   Luxury futuristic · Dark premium · Copper
   ═══════════════════════════════════════════ */

:root {
    --bg: #080a0d;
    --bg-elevated: #0f1218;
    --surface: #161b24;
    --surface-2: #1e2530;
    --border: rgba(196, 121, 74, 0.22);
    --border-subtle: rgba(168, 176, 188, 0.12);
    --text: #e8eaed;
    --text-muted: #8b939e;
    --copper: #c4794a;
    --copper-light: #d4956a;
    --copper-glow: rgba(196, 121, 74, 0.35);
    --silver: #a8b0bc;
    --frame-bevel: 2px;
    --font-display: 'Barlow Condensed', 'Noto Sans JP', sans-serif;
    --font-serif: 'Noto Serif JP', serif;
    --font-body: 'DM Sans', 'Noto Sans JP', sans-serif;
    --rail-h: 64px;
    --strip-w: 88px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --shadow-frame: 0 0 0 1px var(--border), 0 24px 48px rgba(0,0,0,0.45);
}

[data-theme="light"] {
    --bg: #f2f0ec;
    --bg-elevated: #faf8f5;
    --surface: #ffffff;
    --surface-2: #ebe8e3;
    --border: rgba(196, 121, 74, 0.35);
    --border-subtle: rgba(30, 37, 48, 0.1);
    --text: #1a1d22;
    --text-muted: #5c6370;
    --shadow-frame: 0 0 0 1px var(--border), 0 16px 40px rgba(0,0,0,0.08);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
body.kz-sheet-open { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--copper-light); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--copper); }
h1, h2, h3 { font-family: var(--font-serif); font-weight: 600; line-height: 1.2; }
h1 em, h2 em { font-style: normal; color: var(--copper); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
address { font-style: normal; }

.kz-micro {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--copper);
}

/* ── Buttons ── */
.kz-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    border-radius: 2px;
    transition: all 0.25s var(--ease);
}
.kz-btn--copper {
    background: var(--copper);
    color: #fff;
    box-shadow: 0 4px 20px var(--copper-glow);
}
.kz-btn--copper:hover {
    background: var(--copper-light);
    color: #fff;
    transform: translateY(-2px);
}
.kz-btn--ghost {
    border: 1px solid var(--border);
    color: var(--text);
}
.kz-btn--ghost:hover { border-color: var(--copper); color: var(--copper); }
.kz-btn--sm { padding: 0.55rem 1.1rem; font-size: 11px; }
.kz-btn--full { width: 100%; }
.kz-link {
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--copper);
}
.kz-link:hover { color: var(--copper-light); }

/* ── Rail Navbar ── */
.kz-rail {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(8, 10, 13, 0.88);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
    transition: transform 0.35s var(--ease), box-shadow 0.3s;
}
[data-theme="light"] .kz-rail { background: rgba(242, 240, 236, 0.92); }
.kz-rail.is-scrolled { box-shadow: 0 8px 32px rgba(0,0,0,0.3); }
.kz-rail.is-hidden { transform: translateY(-100%); }
.kz-rail__track {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: var(--rail-h);
    gap: 1rem;
}
.kz-rail__brand {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--text);
    text-decoration: none;
}
.kz-rail__frame-num {
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.05em;
    padding: 0.2rem 0.4rem;
    border: 1px solid var(--copper);
    color: var(--copper);
}
.kz-rail__logo {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.12em;
}
.kz-rail__logo em { font-style: normal; color: var(--copper); font-weight: 400; }
.kz-rail__nav { display: flex; gap: 0.25rem; }
.kz-rail__link {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.5rem 0.85rem;
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    border-radius: 2px;
    transition: all 0.2s;
}
.kz-rail__link-num {
    font-size: 9px;
    opacity: 0.5;
}
.kz-rail__link:hover, .kz-rail__link.is-active {
    color: var(--text);
    background: var(--surface);
}
.kz-rail__link.is-active .kz-rail__link-num { color: var(--copper); opacity: 1; }
.kz-rail__actions { display: flex; align-items: center; gap: 0.35rem; }
.kz-rail__action {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px; height: 38px;
    color: var(--text-muted);
    border-radius: 2px;
    transition: all 0.2s;
}
.kz-rail__action:hover { color: var(--copper); background: var(--surface); }
.kz-rail__action em {
    position: absolute;
    top: 4px; right: 4px;
    font-size: 9px;
    font-style: normal;
    font-weight: 700;
    min-width: 14px; height: 14px;
    display: flex; align-items: center; justify-content: center;
    background: var(--copper);
    color: #fff;
    border-radius: 50%;
}
.kz-rail__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 38px; height: 38px;
    align-items: center;
    justify-content: center;
}
.kz-rail__burger span {
    display: block;
    width: 20px; height: 1.5px;
    background: var(--text);
    transition: 0.3s;
}
.kz-rail__bezel {
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--copper), transparent);
    opacity: 0.4;
}
[data-theme="light"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon, :root:not([data-theme]) .icon-moon { display: none; }

/* ── Mobile sheet ── */
.kz-sheet {
    position: fixed; inset: 0;
    z-index: 1100;
    pointer-events: none;
    visibility: hidden;
}
.kz-sheet[aria-hidden="false"] { pointer-events: auto; visibility: visible; }
.kz-sheet__veil {
    position: absolute; inset: 0;
    background: rgba(0,0,0,0.6);
    opacity: 0;
    transition: opacity 0.35s;
}
.kz-sheet[aria-hidden="false"] .kz-sheet__veil { opacity: 1; }
.kz-sheet__panel {
    position: absolute;
    top: 0; right: 0;
    width: min(300px, 85vw);
    height: 100%;
    background: var(--surface);
    border-left: 1px solid var(--border);
    padding: 2rem 1.5rem;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
}
.kz-sheet[aria-hidden="false"] .kz-sheet__panel { transform: translateX(0); }
.kz-sheet__list { list-style: none; margin-top: 1.5rem; }
.kz-sheet__list a {
    display: block;
    padding: 0.85rem 0;
    font-family: var(--font-display);
    font-size: 14px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text);
    border-bottom: 1px solid var(--border-subtle);
}
.kz-sheet__tel { margin-top: 2rem; font-size: 14px; }

/* ── Search overlay ── */
.kz-lens-search {
    position: fixed; inset: 0;
    z-index: 1200;
    pointer-events: none;
    visibility: hidden;
}
.kz-lens-search[aria-hidden="false"] { pointer-events: auto; visibility: visible; }
.kz-lens-search__veil {
    position: absolute; inset: 0;
    background: rgba(0,0,0,0.75);
    opacity: 0;
    transition: opacity 0.3s;
}
.kz-lens-search[aria-hidden="false"] .kz-lens-search__veil { opacity: 1; }
.kz-lens-search__box {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    width: min(520px, 90vw);
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 2.5rem;
    opacity: 0;
    transition: all 0.35s var(--ease);
}
.kz-lens-search[aria-hidden="false"] .kz-lens-search__box {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}
.kz-lens-search__close {
    position: absolute;
    top: 1rem; right: 1rem;
    font-size: 1.5rem;
    color: var(--text-muted);
}
.kz-lens-search__form {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
}
.kz-lens-search__form input {
    flex: 1;
    padding: 0.85rem 1rem;
    background: var(--bg);
    border: 1px solid var(--border-subtle);
    color: var(--text);
    font-family: inherit;
    font-size: 15px;
}

/* ── Multi-frame layout shell ── */
.kz-multiframe {
    position: relative;
    min-height: 100vh;
    padding-top: var(--rail-h);
}
.kz-strip {
    position: fixed;
    top: var(--rail-h);
    left: 0;
    width: var(--strip-w);
    height: calc(100vh - var(--rail-h));
    background: var(--bg-elevated);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.25rem 0;
    z-index: 50;
}
.kz-strip__label {
    text-align: center;
    margin-bottom: 1.5rem;
}
.kz-strip__label strong {
    display: block;
    font-family: var(--font-display);
    font-size: 14px;
    letter-spacing: 0.1em;
    color: var(--copper);
    margin-top: 0.25rem;
}
.kz-strip__frames {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    flex: 1;
}
.kz-strip__frame {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.4rem;
    opacity: 0.4;
    transition: opacity 0.25s;
}
.kz-strip__frame.is-active { opacity: 1; }
.kz-strip__frame-num {
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
}
.kz-strip__frame.is-active .kz-strip__frame-num { color: var(--copper); }
.kz-strip__frame-bar {
    width: 3px;
    height: 20px;
    background: var(--border-subtle);
    border-radius: 2px;
    transition: all 0.3s;
}
.kz-strip__frame.is-active .kz-strip__frame-bar {
    height: 32px;
    background: var(--copper);
    box-shadow: 0 0 12px var(--copper-glow);
}
.kz-strip__preview {
    position: relative;
    width: 56px; height: 72px;
    margin-top: auto;
    overflow: hidden;
    border: 1px solid var(--border);
}
.kz-strip__thumb {
    position: absolute; inset: 0;
    opacity: 0;
    transition: opacity 0.4s;
}
.kz-strip__thumb.is-active { opacity: 1; }
.kz-strip__thumb-img { width: 100%; height: 100%; object-fit: cover; }
.kz-canvas {
    margin-left: var(--strip-w);
    width: calc(100% - var(--strip-w));
    min-width: 0;
}
.kz-main--framed {
    width: 100%;
    max-width: 100%;
}
.kz-main:not(.kz-main--framed) {
    padding-top: var(--rail-h);
    max-width: 1100px;
    margin: 0 auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    padding-bottom: 4rem;
}

/* ── Reveal ── */
.kz-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.kz-reveal.is-visible { opacity: 1; transform: none; }

/* ── Frame sections ── */
.kz-frame {
    position: relative;
    width: 100%;
    padding: clamp(3rem, 8vw, 6rem) clamp(1.5rem, 5vw, 4rem);
    border-bottom: 1px solid var(--border-subtle);
}
.kz-frame > *:not(.kz-aperture):not(.kz-pinned):not(.kz-glitch):not(.kz-ribbon-wrap) {
    max-width: 1240px;
    margin-left: auto;
    margin-right: auto;
}
.kz-frame__head {
    max-width: 640px;
    margin-bottom: 2.5rem;
}
.kz-frame__head h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin: 0.5rem 0; }
.kz-frame__head p { color: var(--text-muted); }

/* F-01 Hero — Cinematic Aperture */
.kz-frame--hero {
    padding: 0;
    min-height: calc(100vh - var(--rail-h));
    border-bottom: none;
}
.kz-aperture {
    position: relative;
    display: grid;
    grid-template-columns: 1fr min(420px, 38vw);
    grid-template-rows: 1fr auto;
    width: 100%;
    min-height: calc(100vh - var(--rail-h));
    overflow: hidden;
    background: var(--bg);
}
.kz-aperture__visual {
    position: relative;
    grid-row: 1 / 3;
    min-height: calc(100vh - var(--rail-h));
    overflow: hidden;
}
.kz-aperture__slides {
    position: absolute;
    inset: 0;
    transform-origin: center center;
    will-change: transform;
}
.kz-aperture__slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transform: scale(1.06);
    transition: opacity 0.9s var(--ease), transform 1.2s var(--ease);
}
.kz-aperture__slide.is-active {
    opacity: 1;
    transform: scale(1);
}
.kz-aperture__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 40%;
}
.kz-aperture__veil {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(105deg, rgba(8,10,13,0.15) 0%, rgba(8,10,13,0.55) 55%, rgba(8,10,13,0.92) 100%),
        linear-gradient(0deg, rgba(8,10,13,0.7) 0%, transparent 35%);
    pointer-events: none;
}
.kz-aperture__reticle {
    position: absolute;
    inset: clamp(1.5rem, 4vw, 3rem);
    pointer-events: none;
}
.kz-aperture__corner {
    position: absolute;
    width: 28px;
    height: 28px;
    border-color: var(--copper);
    border-style: solid;
    opacity: 0.85;
}
.kz-aperture__corner--tl { top: 0; left: 0; border-width: 2px 0 0 2px; }
.kz-aperture__corner--tr { top: 0; right: 0; border-width: 2px 2px 0 0; }
.kz-aperture__corner--bl { bottom: 0; left: 0; border-width: 0 0 2px 2px; }
.kz-aperture__corner--br { bottom: 0; right: 0; border-width: 0 2px 2px 0; }
.kz-aperture__crosshair {
    position: absolute;
    top: 50%; left: 50%;
    width: 24px; height: 24px;
    transform: translate(-50%, -50%);
    border: 1px solid rgba(196, 121, 74, 0.35);
    border-radius: 50%;
}
.kz-aperture__crosshair::before,
.kz-aperture__crosshair::after {
    content: '';
    position: absolute;
    background: rgba(196, 121, 74, 0.35);
}
.kz-aperture__crosshair::before {
    top: 50%; left: -6px; right: -6px;
    height: 1px;
    transform: translateY(-50%);
}
.kz-aperture__crosshair::after {
    left: 50%; top: -6px; bottom: -6px;
    width: 1px;
    transform: translateX(-50%);
}
.kz-aperture__hud {
    position: absolute;
    top: clamp(1.5rem, 4vw, 3rem);
    left: clamp(1.5rem, 4vw, 3rem);
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    z-index: 2;
}
.kz-aperture__hud-item {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(232, 234, 237, 0.85);
    text-shadow: 0 1px 8px rgba(0,0,0,0.5);
}
.kz-aperture__hud-item--rec {
    color: var(--copper);
    animation: kzRecPulse 2s ease-in-out infinite;
}
@keyframes kzRecPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.45; }
}
.kz-aperture__slant {
    position: absolute;
    top: 0; right: -1px;
    width: 120px;
    height: 100%;
    background: var(--bg);
    clip-path: polygon(100% 0, 100% 100%, 0 100%);
    z-index: 3;
}
.kz-aperture__panel {
    position: relative;
    z-index: 4;
    display: flex;
    align-items: center;
    padding: clamp(2rem, 5vw, 3.5rem) clamp(1.5rem, 4vw, 2.5rem);
    background: var(--bg);
    border-left: 1px solid var(--border-subtle);
}
.kz-aperture__panel-inner {
    width: 100%;
    border-left: 3px solid var(--copper);
    padding-left: clamp(1.25rem, 3vw, 2rem);
}
.kz-aperture__coords {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin: 0.35rem 0 1.25rem;
}
.kz-aperture__title {
    font-size: clamp(2.25rem, 4.5vw, 3.5rem);
    line-height: 1.08;
    margin-bottom: 1.25rem;
}
.kz-aperture__title-line { display: block; }
.kz-aperture__title-line--accent em { font-style: normal; color: var(--copper); }
.kz-aperture__lead {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 1.75rem;
    max-width: 34ch;
}
.kz-aperture__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 2rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}
.kz-aperture__stat strong {
    display: block;
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--copper);
    line-height: 1;
}
.kz-aperture__stat span {
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}
.kz-aperture__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}
.kz-aperture__filmstrip {
    grid-column: 1;
    display: flex;
    gap: 0.65rem;
    padding: 1.25rem clamp(1.5rem, 4vw, 3rem);
    background: linear-gradient(0deg, rgba(8,10,13,0.95), transparent);
    z-index: 5;
    align-self: end;
}
.kz-aperture__thumb {
    position: relative;
    flex: 0 0 88px;
    aspect-ratio: 4/3;
    overflow: hidden;
    border: 2px solid transparent;
    opacity: 0.55;
    transition: all 0.3s var(--ease);
    cursor: pointer;
}
.kz-aperture__thumb.is-active {
    opacity: 1;
    border-color: var(--copper);
    box-shadow: 0 0 20px var(--copper-glow);
    transform: translateY(-4px);
}
.kz-aperture__thumb:hover { opacity: 0.9; }
.kz-aperture__thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.kz-aperture__thumb span {
    position: absolute;
    bottom: 0; left: 0;
    padding: 0.15rem 0.4rem;
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    background: rgba(8,10,13,0.8);
    color: var(--copper);
}
.kz-aperture__scroll {
    position: absolute;
    bottom: 1.5rem;
    right: clamp(1rem, 3vw, 2rem);
    z-index: 6;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-muted);
    transition: color 0.2s;
}
.kz-aperture__scroll:hover { color: var(--copper); }
.kz-aperture__scroll i {
    display: block;
    width: 1px;
    height: 40px;
    background: linear-gradient(var(--copper), transparent);
    animation: kzScrollLine 2s ease-in-out infinite;
}
@keyframes kzScrollLine {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.6); opacity: 0.4; }
}

/* F-02 Manifesto */
.kz-manifesto__head h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); margin: 0.5rem 0 2rem; }
.kz-manifesto__triptych {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}
.kz-manifesto__panel--offset { transform: translateY(2.5rem); }
.kz-manifesto__fig {
    position: relative;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-frame);
    border: 1px solid var(--border);
    overflow: hidden;
}
.kz-manifesto__fig figcaption {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 0.5rem 0.75rem;
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.12em;
    background: rgba(8,10,13,0.75);
    color: var(--copper);
}
.kz-manifesto__panel p { font-size: 14px; color: var(--text-muted); }
.kz-manifesto__quote {
    font-family: var(--font-serif);
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    font-style: italic;
    padding-left: 1.5rem;
    border-left: 3px solid var(--copper);
    color: var(--silver);
}

/* F-03 Selector */
.kz-selector {
    display: grid;
    grid-template-columns: 1fr 200px;
    gap: 2rem;
    align-items: start;
}
.kz-selector__lens {
    position: relative;
    aspect-ratio: 3/2;
    overflow: hidden;
    border: 2px solid var(--border);
    box-shadow: var(--shadow-frame);
}
.kz-selector__view {
    position: absolute; inset: 0;
    opacity: 0;
    transition: opacity 0.5s var(--ease);
}
.kz-selector__view.is-active { opacity: 1; }
.kz-selector__img { width: 100%; height: 100%; object-fit: cover; }
.kz-selector__hud {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.1em;
}
.kz-selector__controls { display: flex; flex-direction: column; gap: 0.5rem; }
.kz-selector__btn {
    padding: 1rem;
    text-align: left;
    border: 1px solid var(--border-subtle);
    background: var(--surface);
    transition: all 0.25s;
}
.kz-selector__btn.is-active {
    border-color: var(--copper);
    background: var(--surface-2);
    box-shadow: inset 3px 0 0 var(--copper);
}
.kz-selector__btn-label { display: block; font-weight: 600; color: var(--text); }
.kz-selector__btn-sub {
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.12em;
    color: var(--text-muted);
}
.kz-selector__note {
    grid-column: 1 / -1;
    font-size: 14px;
    color: var(--text-muted);
    padding: 1rem;
    border-left: 2px solid var(--copper);
    background: var(--surface);
}

/* F-04 Ribbon */
.kz-ribbon-wrap {
    width: 100%;
    overflow: hidden;
}
.kz-ribbon {
    display: flex;
    gap: 1.25rem;
    padding: 1rem 1.5rem 2rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    cursor: grab;
    scrollbar-width: none;
}
.kz-ribbon::-webkit-scrollbar { display: none; }
.kz-ribbon.is-dragging { cursor: grabbing; }
.kz-ribbon__card {
    flex: 0 0 min(280px, 75vw);
    scroll-snap-align: start;
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    transition: transform 0.3s, border-color 0.3s;
}
.kz-ribbon__card:hover { transform: translateY(-4px); border-color: var(--copper); }
.kz-ribbon__fig { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.kz-ribbon__img { width: 100%; height: 100%; object-fit: cover; }
.kz-ribbon__year {
    position: absolute;
    top: 0.5rem; left: 0.5rem;
    font-family: var(--font-display);
    font-size: 11px;
    padding: 0.2rem 0.5rem;
    background: var(--copper);
    color: #fff;
}
.kz-ribbon__body { padding: 1rem; }
.kz-ribbon__body h3 { font-size: 1rem; margin-bottom: 0.35rem; }
.kz-ribbon__body p { font-family: var(--font-display); font-size: 14px; color: var(--copper); }

/* F-05 Pinned */
.kz-frame--pinned { padding: 0; }
.kz-pinned {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    min-height: 300vh;
}
.kz-pinned__visual {
    position: sticky;
    top: var(--rail-h);
    height: calc(100vh - var(--rail-h));
    overflow: hidden;
}
.kz-pinned__slide {
    position: absolute; inset: 0;
    opacity: 0;
    transition: opacity 0.6s;
}
.kz-pinned__slide.is-active { opacity: 1; }
.kz-pinned__img { width: 100%; height: 100%; object-fit: cover; }
.kz-pinned__progress {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: var(--border-subtle);
}
.kz-pinned__progress span {
    display: block;
    height: 100%;
    width: 0;
    background: var(--copper);
    transition: width 0.1s;
}
.kz-pinned__copy { padding: clamp(2rem, 5vw, 4rem); }
.kz-pinned__card {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    opacity: 0.3;
    transition: opacity 0.5s;
}
.kz-pinned__card.is-active { opacity: 1; }
.kz-pinned__card h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 0.5rem 0 1rem; }
.kz-pinned__card p { color: var(--text-muted); max-width: 42ch; }

/* F-06 Specs */
.kz-specs__tabs { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
.kz-specs__tab {
    padding: 0.65rem 1.25rem;
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    transition: all 0.2s;
}
.kz-specs__tab.is-active {
    border-color: var(--copper);
    color: var(--copper);
    background: var(--surface);
}
.kz-specs__panel { display: none; }
.kz-specs__panel.is-active { display: block; }
.kz-specs__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.kz-specs__item {
    padding: 1rem;
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    text-align: center;
}
.kz-specs__item span {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}
.kz-specs__item strong {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--copper);
}
.kz-specs__hero {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    border: 1px solid var(--border);
}

/* F-07 Glitch */
.kz-frame--glitch { padding: 0; overflow: hidden; }
.kz-glitch {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
}
.kz-glitch__layer { position: absolute; inset: 0; }
.kz-glitch__layer--base { z-index: 1; }
.kz-glitch__layer--shift {
    z-index: 2;
    opacity: 0;
    mix-blend-mode: screen;
    transition: opacity 0.4s;
}
.kz-glitch.is-glitching .kz-glitch__layer--shift {
    opacity: 0.6;
    animation: kzGlitchShift 0.15s infinite;
}
.kz-glitch__layer--scan {
    z-index: 3;
    background: repeating-linear-gradient(
        0deg,
        transparent 0px,
        transparent 2px,
        rgba(196, 121, 74, 0.08) 2px,
        rgba(196, 121, 74, 0.08) 4px
    );
    pointer-events: none;
    opacity: 0;
}
.kz-glitch.is-glitching .kz-glitch__layer--scan { opacity: 1; }
.kz-glitch__img { width: 100%; height: 100%; object-fit: cover; }
.kz-glitch__copy {
    position: relative;
    z-index: 10;
    max-width: 480px;
    margin-left: clamp(2rem, 8vw, 6rem);
    padding: 2rem;
    background: rgba(8, 10, 13, 0.85);
    border: 1px solid var(--border);
    backdrop-filter: blur(8px);
}
.kz-glitch__copy h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 0.5rem 0 1rem; }
.kz-glitch__copy p { color: var(--text-muted); margin-bottom: 1.25rem; }
@keyframes kzGlitchShift {
    0% { transform: translate(0); }
    25% { transform: translate(-4px, 2px); }
    50% { transform: translate(3px, -2px); }
    75% { transform: translate(-2px, -1px); }
    100% { transform: translate(0); }
}

/* F-08 Timeline */
.kz-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}
.kz-timeline__frame {
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
    transition: border-color 0.3s, transform 0.3s;
}
.kz-timeline__frame:hover { border-color: var(--copper); transform: translateY(-3px); }
.kz-timeline__fig { aspect-ratio: 7/5; overflow: hidden; }
.kz-timeline__img { width: 100%; height: 100%; object-fit: cover; }
.kz-timeline__body { padding: 1rem; }
.kz-timeline__year {
    font-family: var(--font-display);
    font-size: 12px;
    color: var(--copper);
    letter-spacing: 0.1em;
}
.kz-timeline__body h3 { font-size: 1rem; margin: 0.35rem 0; }
.kz-timeline__body p { font-size: 13px; color: var(--text-muted); }

/* F-09 Voices */
.kz-voices { max-width: 720px; }
.kz-voices__track { position: relative; min-height: 180px; }
.kz-voices__card {
    position: absolute; inset: 0;
    opacity: 0;
    transform: translateX(20px);
    transition: all 0.5s var(--ease);
    padding: 2rem;
    background: var(--surface);
    border-left: 3px solid var(--copper);
}
.kz-voices__card.is-active { opacity: 1; transform: none; }
.kz-voices__card p {
    font-family: var(--font-serif);
    font-size: clamp(1.05rem, 2vw, 1.2rem);
    line-height: 1.8;
    margin-bottom: 1rem;
}
.kz-voices__card footer { font-size: 13px; color: var(--text-muted); }
.kz-voices__nav { display: flex; gap: 0.5rem; margin-top: 1.5rem; }
.kz-voices__dot {
    width: 32px; height: 3px;
    background: var(--border-subtle);
    transition: background 0.3s, width 0.3s;
}
.kz-voices__dot.is-active { background: var(--copper); width: 48px; }

/* F-10 Portal */
.kz-portal {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-frame);
}
.kz-portal__frames { position: relative; min-height: 320px; }
.kz-portal__frame {
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow-frame);
}
.kz-portal__frame--float {
    position: absolute;
    bottom: -1rem; right: -1rem;
    width: 55%;
    transform: rotate(2deg);
}
.kz-portal__img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.kz-portal__copy h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); margin: 0.5rem 0 1rem; }
.kz-portal__copy > p { color: var(--text-muted); margin-bottom: 1.25rem; }
.kz-portal__list {
    list-style: none;
    margin-bottom: 1.5rem;
}
.kz-portal__list li {
    padding: 0.4rem 0;
    font-size: 14px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-subtle);
}
.kz-portal__list li::before { content: '— '; color: var(--copper); }
.kz-portal__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* ── Inner pages ── */
.kz-page-hero {
    padding: 3rem 0 2.5rem;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 3rem;
}
.kz-page-hero h1 { font-size: clamp(2rem, 5vw, 3rem); margin: 0.5rem 0; }
.kz-page-hero__lead { color: var(--text-muted); max-width: 58ch; font-size: 16px; }
.kz-section-head { margin-bottom: 2rem; }
.kz-section-head h2 { font-size: clamp(1.4rem, 3vw, 2rem); margin-top: 0.35rem; }

/* About */
.kz-about-story__grid,
.kz-about-team__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
}
.kz-about-story__visual { position: relative; }
.kz-about-story__img { border: 1px solid var(--border); }
.kz-about-story__visual figcaption {
    margin-top: 0.5rem;
    font-size: 12px;
    color: var(--text-muted);
}
.kz-about-story__copy h2 { font-size: clamp(1.4rem, 3vw, 1.85rem); margin-bottom: 1rem; }
.kz-about-story__copy p { color: var(--text-muted); margin-bottom: 1rem; }
.kz-about-pillars {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 4rem;
}
.kz-about-pillar {
    padding: 1.75rem;
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    border-top: 3px solid var(--copper);
}
.kz-about-pillar__num {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--copper);
    opacity: 0.4;
}
.kz-about-pillar h3 { margin: 0.5rem 0; font-size: 1.1rem; }
.kz-about-pillar p { font-size: 14px; color: var(--text-muted); }
.kz-about-chrono { border-left: 2px solid var(--border); margin-bottom: 4rem; }
.kz-about-chrono__item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 1.5rem;
    padding: 1.5rem 0 1.5rem 1.5rem;
    position: relative;
}
.kz-about-chrono__item::before {
    content: '';
    position: absolute;
    left: -5px; top: 1.75rem;
    width: 8px; height: 8px;
    background: var(--copper);
    border-radius: 50%;
}
.kz-about-chrono__year {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    color: var(--copper);
}
.kz-about-chrono__body h3 { font-size: 1.05rem; margin-bottom: 0.35rem; }
.kz-about-chrono__body p { font-size: 14px; color: var(--text-muted); }
.kz-about-team__list { list-style: none; margin-top: 1rem; }
.kz-about-team__list li {
    padding: 0.5rem 0;
    font-size: 14px;
    border-bottom: 1px solid var(--border-subtle);
}
.kz-about-access__grid {
    display: grid;
    gap: 1rem;
    margin-bottom: 3rem;
}
.kz-about-access address { line-height: 1.9; }
.kz-cta-band {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    margin-top: 2rem;
}
.kz-cta-band h2 { margin-bottom: 0.5rem; }
.kz-cta-band p { color: var(--text-muted); margin-bottom: 1.5rem; }
.kz-cta-band__actions { display: flex; justify-content: center; gap: 0.75rem; flex-wrap: wrap; }

/* Shop */
.kz-shop {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2.5rem;
    margin-bottom: 3rem;
}
.kz-shop__filter-title {
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}
.kz-shop__fieldset {
    border: none;
    margin-bottom: 1.5rem;
}
.kz-shop__fieldset legend {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.65rem;
}
.kz-shop__chip {
    display: block;
    padding: 0.4rem 0;
    font-size: 14px;
    cursor: pointer;
}
.kz-shop__chip input { margin-right: 0.5rem; accent-color: var(--copper); }
.kz-shop__reset { display: inline-block; margin-top: 0.75rem; font-size: 13px; }
.kz-shop__toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}
.kz-shop__count { font-size: 14px; color: var(--text-muted); }
.kz-shop__filter-toggle { display: none; }
.kz-shop__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}
.kz-vehicle-card {
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    transition: border-color 0.3s, transform 0.3s;
    overflow: hidden;
}
.kz-vehicle-card:hover { border-color: var(--copper); transform: translateY(-3px); }
.kz-vehicle-card__fig { position: relative; aspect-ratio: 10/7; overflow: hidden; }
.kz-vehicle-card__img { width: 100%; height: 100%; object-fit: cover; }
.kz-vehicle-card__year {
    position: absolute;
    top: 0.5rem; left: 0.5rem;
    font-family: var(--font-display);
    font-size: 11px;
    padding: 0.2rem 0.45rem;
    background: var(--copper);
    color: #fff;
}
.kz-vehicle-card__wish {
    position: absolute;
    top: 0.5rem; right: 0.5rem;
    width: 32px; height: 32px;
    background: rgba(8,10,13,0.7);
    border-radius: 50%;
    font-size: 14px;
    color: var(--text);
    transition: all 0.2s;
}
.kz-vehicle-card__wish.is-wished { color: var(--copper); }
.kz-vehicle-card__body { padding: 1.1rem; }
.kz-vehicle-card__body h3 { font-size: 1rem; margin-bottom: 0.35rem; }
.kz-vehicle-card__desc { font-size: 13px; color: var(--text-muted); margin-bottom: 0.65rem; }
.kz-vehicle-card__meta {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.85rem;
}
.kz-vehicle-card__meta span {
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.2rem 0.5rem;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
}
.kz-vehicle-card__foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}
.kz-vehicle-card__foot strong {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--copper);
}
.kz-shop__empty, .kz-shop-cta {
    text-align: center;
    padding: 3rem;
    background: var(--surface);
    border: 1px solid var(--border-subtle);
}
.kz-shop-cta { margin-bottom: 2rem; }
.kz-shop-cta h2 { margin-bottom: 0.5rem; }
.kz-shop-cta p { color: var(--text-muted); margin-bottom: 1.25rem; }

/* FAQ */
.kz-faq { margin-bottom: 3rem; }
.kz-faq__tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 1rem;
}
.kz-faq__tab {
    padding: 0.6rem 1.1rem;
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    transition: all 0.2s;
}
.kz-faq__tab.is-active {
    border-color: var(--copper);
    color: var(--copper);
    background: var(--surface);
}
.kz-faq__panel { display: none; }
.kz-faq__panel.is-active { display: block; }
.kz-faq__item {
    border: 1px solid var(--border-subtle);
    margin-bottom: 0.5rem;
    background: var(--surface);
}
.kz-faq__question {
    padding: 1.1rem 1.25rem;
    font-weight: 500;
    cursor: pointer;
    list-style: none;
}
.kz-faq__question::-webkit-details-marker { display: none; }
.kz-faq__answer { padding: 0 1.25rem 1.1rem; }
.kz-faq__answer p { font-size: 14px; color: var(--text-muted); }
.kz-faq-cta {
    text-align: center;
    padding: 2.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    margin-bottom: 2rem;
}
.kz-faq-cta__actions { display: flex; justify-content: center; gap: 0.75rem; flex-wrap: wrap; margin-top: 1rem; }

/* Contact */
.kz-alert {
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--copper);
    background: rgba(196, 121, 74, 0.1);
}
.kz-contact {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.kz-contact__card {
    padding: 1.75rem;
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    margin-bottom: 1.5rem;
}
.kz-contact__card h2 { font-size: 1.25rem; margin: 0.5rem 0 1rem; }
.kz-contact__card address { line-height: 2; font-size: 14px; }
.kz-contact__note { font-size: 13px; color: var(--text-muted); margin-top: 1rem; }
.kz-contact__img { border: 1px solid var(--border); }
.kz-contact__form {
    padding: 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
}
.kz-contact__form h2 { font-size: 1.2rem; margin-bottom: 1.25rem; }
.kz-form-row { margin-bottom: 1.1rem; }
.kz-form-row label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 0.35rem;
}
.kz-form-row label span { color: var(--copper); }
.kz-form-row input,
.kz-form-row select,
.kz-form-row textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg);
    border: 1px solid var(--border-subtle);
    color: var(--text);
    font-family: inherit;
    font-size: 15px;
    border-radius: 2px;
}
.kz-form-row input:focus,
.kz-form-row select:focus,
.kz-form-row textarea:focus {
    outline: none;
    border-color: var(--copper);
}
.kz-contact-map { margin-bottom: 2rem; }
.kz-map-embed {
    aspect-ratio: 16/7;
    border: 1px solid var(--border);
    overflow: hidden;
}
.kz-map-embed iframe { width: 100%; height: 100%; border: 0; }
.kz-map-note { font-size: 13px; color: var(--text-muted); margin-top: 0.75rem; }

/* Cart */
.kz-cart-page {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 2.5rem;
    margin-bottom: 3rem;
}
.kz-cart-page__summary {
    padding: 1.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    height: fit-content;
    position: sticky;
    top: calc(var(--rail-h) + 1.5rem);
}
.kz-cart-page__summary h2 { font-size: 1.1rem; margin-bottom: 1.25rem; }
.kz-cart-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 1.25rem;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--border-subtle);
}
.kz-cart-item__img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border: 1px solid var(--border-subtle); }
.kz-cart-item__body h3 { font-size: 1rem; margin-bottom: 0.35rem; }
.kz-cart-item__body > p { font-size: 13px; color: var(--text-muted); margin-bottom: 0.75rem; }
.kz-cart-item__controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
}
.kz-qty {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid var(--border-subtle);
}
.kz-qty button {
    width: 32px; height: 32px;
    color: var(--text);
    font-size: 16px;
}
.kz-qty .qty-val { min-width: 24px; text-align: center; font-size: 14px; }
.kz-cart-item__price { font-family: var(--font-display); color: var(--copper); }
.kz-cart-item__remove {
    font-size: 12px;
    color: var(--text-muted);
    text-decoration: underline;
}
.kz-cart-empty { text-align: center; padding: 3rem; }
.kz-cart-summary__row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    padding: 0.5rem 0;
    color: var(--text-muted);
}
.kz-cart-summary__row--discount { color: var(--copper); }
.kz-cart-summary__total {
    border-top: 1px solid var(--border);
    margin-top: 0.5rem;
    padding-top: 0.75rem;
    color: var(--text);
    font-size: 16px;
}
.kz-cart-coupon { margin: 1.25rem 0; }
.kz-cart-coupon label { font-size: 12px; color: var(--text-muted); }
.kz-cart-coupon__row { display: flex; gap: 0.5rem; margin-top: 0.35rem; }
.kz-cart-coupon__row input {
    flex: 1;
    padding: 0.6rem;
    background: var(--bg);
    border: 1px solid var(--border-subtle);
    color: var(--text);
    font-size: 14px;
}
.kz-cart-coupon__hint { font-size: 11px; color: var(--text-muted); margin-top: 0.35rem; }
.kz-cart-page__note { font-size: 12px; color: var(--text-muted); margin-top: 1rem; }

/* Legal */
.kz-legal { max-width: 760px; padding-bottom: 3rem; }
.kz-legal__head { margin-bottom: 2.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border-subtle); }
.kz-legal__head h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin: 0.5rem 0; }
.kz-legal__updated { font-size: 13px; color: var(--text-muted); }
.kz-legal__body h2 {
    font-size: 1.2rem;
    margin: 2rem 0 0.75rem;
    padding-top: 0.5rem;
}
.kz-legal__body h3 { font-size: 1rem; margin: 1.25rem 0 0.5rem; }
.kz-legal__body p { margin-bottom: 1rem; color: var(--text-muted); font-size: 15px; }
.kz-legal__body ul { margin: 0 0 1rem 1.25rem; color: var(--text-muted); font-size: 15px; }
.kz-legal__body li { margin-bottom: 0.35rem; }
.kz-legal__body code {
    font-size: 13px;
    padding: 0.15rem 0.4rem;
    background: var(--surface);
    border: 1px solid var(--border-subtle);
}
.kz-legal__contact {
    padding: 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    line-height: 1.9;
    font-size: 14px;
}

/* Footer deck */
.kz-deck { margin-top: 0; }
.kz-main--framed + .kz-deck,
.kz-main:not(.kz-main--framed) ~ .kz-deck { margin-left: 0; }
.page-home .kz-deck {
    margin-left: var(--strip-w);
    width: calc(100% - var(--strip-w));
}
.kz-deck__frame { border-top: 1px solid var(--border-subtle); }
.kz-deck__frame--hero { background: var(--bg-elevated); }
.kz-deck__frame--grid { background: var(--surface); }
.kz-deck__frame--strip { background: var(--bg); }
.kz-deck__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
}
.kz-deck__frame--hero .kz-deck__inner {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: center;
}
.kz-deck__frame-tag {
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.15em;
    color: var(--copper);
}
.kz-deck__logo {
    display: block;
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--text);
    margin: 0.35rem 0;
}
.kz-deck__logo span { color: var(--copper); font-weight: 400; }
.kz-deck__tagline { color: var(--text-muted); font-size: 14px; }
.kz-deck__img { width: 200px; border: 1px solid var(--border); }
.kz-deck__cols {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
    gap: 2rem;
}
.kz-deck__addr { font-size: 13px; line-height: 1.9; }
.kz-deck__nav ul { list-style: none; margin-top: 0.5rem; }
.kz-deck__nav li { margin-bottom: 0.4rem; }
.kz-deck__nav a { font-size: 13px; color: var(--text-muted); }
.kz-deck__nav a:hover { color: var(--copper); }
.kz-deck__letter p { font-size: 13px; color: var(--text-muted); margin: 0.5rem 0 0.75rem; }
.kz-newsletter { display: flex; gap: 0.5rem; }
.kz-newsletter input {
    flex: 1;
    padding: 0.6rem;
    background: var(--bg);
    border: 1px solid var(--border-subtle);
    color: var(--text);
    font-size: 13px;
}
.kz-deck__strip {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 2rem;
    font-size: 11px;
    color: var(--text-muted);
    font-family: var(--font-display);
    letter-spacing: 0.05em;
}

/* Back to top */
.kz-ascend {
    position: fixed;
    bottom: 1.5rem; right: 1.5rem;
    z-index: 900;
    width: 42px; height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--copper);
    color: #fff;
    border-radius: 2px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all 0.3s var(--ease);
    box-shadow: 0 4px 16px var(--copper-glow);
}
.kz-ascend.is-visible { opacity: 1; visibility: visible; transform: none; }
.kz-ascend:hover { background: var(--copper-light); }

/* Toast */
.kz-toast {
    position: fixed;
    bottom: 2rem; left: 50%;
    transform: translateX(-50%) translateY(20px);
    z-index: 9999;
    padding: 0.85rem 1.5rem;
    background: var(--surface);
    border: 1px solid var(--copper);
    color: var(--text);
    font-size: 14px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s var(--ease);
    box-shadow: var(--shadow-frame);
}
.kz-toast.is-visible { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

/* ── Responsive ── */
@media (max-width: 1100px) {
    .kz-strip { display: none; }
    .kz-canvas {
        margin-left: 0;
        width: 100%;
    }
    .page-home .kz-deck {
        margin-left: 0;
        width: 100%;
    }
    .kz-deck__cols { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
    .kz-rail__nav { display: none; }
    .kz-rail__burger { display: flex; }
    .kz-aperture {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        min-height: auto;
    }
    .kz-aperture__visual {
        grid-row: auto;
        min-height: 52vh;
    }
    .kz-aperture__panel {
        border-left: none;
        border-top: 1px solid var(--border-subtle);
        padding: 2rem 1.5rem;
    }
    .kz-aperture__slant { display: none; }
    .kz-aperture__filmstrip {
        grid-column: 1;
        padding: 1rem 1.5rem 1.5rem;
        background: var(--bg-elevated);
        overflow-x: auto;
        scrollbar-width: none;
    }
    .kz-aperture__filmstrip::-webkit-scrollbar { display: none; }
    .kz-aperture__scroll { display: none; }
    .kz-manifesto__triptych { grid-template-columns: 1fr; }
    .kz-manifesto__panel--offset { transform: none; }
    .kz-selector { grid-template-columns: 1fr; }
    .kz-pinned { grid-template-columns: 1fr; min-height: auto; }
    .kz-pinned__visual { position: relative; height: 50vh; }
    .kz-pinned__card { min-height: auto; padding: 2rem 0; }
    .kz-specs__grid { grid-template-columns: repeat(2, 1fr); }
    .kz-timeline { grid-template-columns: repeat(2, 1fr); }
    .kz-portal { grid-template-columns: 1fr; }
    .kz-about-story__grid,
    .kz-about-team__grid,
    .kz-contact,
    .kz-cart-page,
    .kz-shop { grid-template-columns: 1fr; }
    .kz-about-pillars { grid-template-columns: 1fr; }
    .kz-shop__filters {
        display: none;
        position: fixed;
        inset: 0;
        z-index: 1050;
        background: var(--surface);
        padding: 2rem;
        overflow-y: auto;
    }
    .kz-shop__filters.is-open { display: block; }
    .kz-shop__filter-toggle {
        display: block;
        font-family: var(--font-display);
        font-size: 12px;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        padding: 0.5rem 1rem;
        border: 1px solid var(--border);
        color: var(--copper);
    }
    .kz-deck__frame--hero .kz-deck__inner { grid-template-columns: 1fr; }
    .kz-deck__visual { display: none; }
}

@media (max-width: 600px) {
    .kz-timeline { grid-template-columns: 1fr; }
    .kz-specs__grid { grid-template-columns: 1fr 1fr; }
    .kz-deck__cols { grid-template-columns: 1fr; }
    .kz-rail__frame-num { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    .kz-reveal { opacity: 1; transform: none; }
}