/* ============================================================
   major.dev — Art Deco architectural design system
   Palette: gold-on-obsidian, no gradients
   ============================================================ */

:root {
    --obsidian-night: #0d0d14;
    --midnight-vault: #16192a;
    --deco-gold: #c9a84c;
    --champagne-gleam: #e8d48b;
    --aged-ivory: #d4c5a0;
    --admiral-blue: #1a2744;
    --dark-goldenrod: #b8860b;
    --burnished-copper: #c27849;
    --section-cap: #2a3654;

    --font-display: "Playfair Display", "Lora", Georgia, serif;
    --font-body: "Libre Baskerville", "Lora", Georgia, serif;
    --font-label: "Bebas Neue", "Inter", "Helvetica Neue", sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    background-color: var(--obsidian-night);
    color: var(--aged-ivory);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;
}

body {
    overscroll-behavior: none;
}

/* ---------- Scroll architecture ---------- */
.scroll-container {
    height: 100vh;
    overflow-y: scroll;
    scroll-snap-type: y mandatory;
    scrollbar-width: none;
}

.scroll-container::-webkit-scrollbar {
    display: none;
}

.section {
    position: relative;
    width: 100vw;
    height: 100vh;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    overflow: hidden;
    isolation: isolate;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    transition: clip-path 1100ms cubic-bezier(0.77, 0, 0.175, 1);
}

.section.is-entering {
    clip-path: polygon(0 0, 100% 0, 100% 0, 0 60%);
}

/* ---------- Shared label / heading typography ---------- */
.section-label {
    font-family: var(--font-label);
    font-size: clamp(0.75rem, 1.2vw, 1rem);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--deco-gold);
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 700ms ease 200ms, transform 700ms ease 200ms;
}

.section.is-active .section-label {
    opacity: 1;
    transform: translateY(0);
}

.section-heading {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.8rem, 4vw, 3.5rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--champagne-gleam);
    line-height: 1.05;
}

[data-split-text] .char {
    display: inline-block;
    transform: translateY(20px);
    opacity: 0;
    transition: transform 700ms cubic-bezier(0.215, 0.61, 0.355, 1),
                opacity 700ms ease;
}

.section.is-active [data-split-text] .char {
    transform: translateY(0);
    opacity: 1;
    transition-delay: var(--char-delay, 0ms);
}

[data-fade-in] {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 900ms ease 600ms, transform 900ms ease 600ms;
}

.section.is-active [data-fade-in] {
    opacity: 1;
    transform: translateY(0);
}

.ornament-rule {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 22px auto 28px;
    width: min(360px, 70%);
    opacity: 0;
    transform: scaleX(0.6);
    transform-origin: center;
    transition: opacity 800ms ease 500ms, transform 800ms ease 500ms;
}

.section.is-active .ornament-rule {
    opacity: 1;
    transform: scaleX(1);
}

.ornament-rule .rule-bar {
    flex: 1;
    height: 1px;
    background-color: var(--deco-gold);
    opacity: 0.7;
}

.ornament-rule .rule-tip {
    width: 8px;
    height: 8px;
    background-color: var(--deco-gold);
    transform: rotate(45deg);
}

/* ---------- Vertical rule pairs ---------- */
.vertical-rule {
    position: absolute;
    top: 8vh;
    bottom: 8vh;
    width: 1px;
    background-color: var(--deco-gold);
    opacity: 0.4;
    animation: rule-pulse 4s ease-in-out infinite;
    z-index: 2;
}

.vertical-rule--left { left: 8vw; }
.vertical-rule--right { right: 8vw; }

@keyframes rule-pulse {
    0%, 100% { opacity: 0.3; }
    50%      { opacity: 0.5; }
}

/* ============================================================
   SECTION 1: LOBBY
   ============================================================ */
.section--lobby {
    background-color: var(--obsidian-night);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lobby-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 0 8vw;
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(3rem, 8vw, 7rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--champagne-gleam);
    line-height: 1;
    margin-top: 18px;
    text-shadow: 0 0 36px rgba(201, 168, 76, 0.18);
}

.hero-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin: 28px auto 24px;
    width: min(420px, 70%);
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 900ms ease 700ms, transform 900ms ease 700ms;
}

.section.is-active .hero-divider {
    opacity: 1;
    transform: translateY(0);
}

.hero-divider .rule {
    flex: 1;
    height: 1px;
    background-color: var(--deco-gold);
    opacity: 0.65;
}

.hero-divider .diamond {
    width: 10px;
    height: 10px;
    background-color: var(--deco-gold);
    transform: rotate(45deg);
}

.hero-tagline {
    font-family: var(--font-body);
    font-style: italic;
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    letter-spacing: 0.02em;
    color: var(--aged-ivory);
    min-height: 1.6em;
    line-height: 1.6;
}

.hero-tagline::after {
    content: "";
    display: inline-block;
    width: 0.55em;
    height: 1em;
    margin-left: 4px;
    vertical-align: -0.1em;
    background-color: var(--deco-gold);
    animation: caret-blink 1s steps(2, end) infinite;
}

@keyframes caret-blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* ---------- Chevron cascade ---------- */
.chevron-cascade {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
    padding: 6vh 0;
    z-index: 1;
    pointer-events: none;
}

.chevron {
    width: 78%;
    height: clamp(20px, 4.5vh, 42px);
    margin: 0 auto;
    background-color: var(--deco-gold);
    clip-path: polygon(0 0, 50% 30%, 100% 0, 100% 10%, 50% 40%, 0 10%);
    opacity: 0.18;
    animation: chevron-pulse 6s ease-in-out infinite;
    animation-delay: var(--chevron-delay, 0ms);
}

.chevron-cascade--up {
    transform: rotate(180deg);
}

@keyframes chevron-pulse {
    0%, 100% { opacity: 0.13; }
    50%      { opacity: 0.32; }
}

/* ---------- Sunburst arcs ---------- */
.sunburst {
    position: absolute;
    width: clamp(160px, 22vw, 320px);
    height: clamp(160px, 22vw, 320px);
    z-index: 2;
    opacity: 0.6;
    pointer-events: none;
    mix-blend-mode: screen;
}

.sunburst--top-left {
    top: 0;
    left: 0;
}

.sunburst--top-right {
    top: 0;
    right: 0;
}

.sunburst-line {
    stroke-dasharray: 320;
    stroke-dashoffset: 320;
    transition: stroke-dashoffset 1200ms cubic-bezier(0.215, 0.61, 0.355, 1);
}

.section.is-active .sunburst-line {
    stroke-dashoffset: 0;
    transition-delay: var(--sun-delay, 0ms);
}

/* ---------- Scroll arrow ---------- */
.scroll-arrow {
    position: absolute;
    bottom: 5vh;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 3;
    animation: arrow-bounce 2.4s ease-in-out infinite;
}

.scroll-arrow .arrow-rule {
    width: 1px;
    height: 36px;
    background-color: var(--deco-gold);
    opacity: 0.6;
}

.scroll-arrow .arrow-glyph {
    width: 14px;
    height: 14px;
    border-right: 2px solid var(--deco-gold);
    border-bottom: 2px solid var(--deco-gold);
    transform: rotate(45deg);
}

@keyframes arrow-bounce {
    0%, 100% { transform: translate(-50%, 0); }
    50%      { transform: translate(-50%, 8px); }
}

/* ============================================================
   SECTION 2: ATRIUM
   ============================================================ */
.section--atrium {
    background-color: var(--midnight-vault);
    display: flex;
    align-items: stretch;
    justify-content: stretch;
}

.atrium-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    width: 100%;
    height: 100%;
}

.atrium-flank {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    border-left: 1px solid rgba(201, 168, 76, 0.25);
    border-right: 1px solid rgba(201, 168, 76, 0.25);
    background-color: var(--obsidian-night);
    overflow: hidden;
}

.atrium-flank--left {
    transform: translateX(-100%);
    transition: transform 1100ms cubic-bezier(0.215, 0.61, 0.355, 1) 200ms;
}

.atrium-flank--right {
    transform: translateX(100%);
    transition: transform 1100ms cubic-bezier(0.215, 0.61, 0.355, 1) 200ms;
}

.section.is-active .atrium-flank--left,
.section.is-active .atrium-flank--right {
    transform: translateX(0);
}

.relief {
    width: 100%;
    height: 100%;
    max-width: 220px;
    opacity: 0.85;
    padding: 4vh 0;
}

.atrium-center {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 10vh 4vw;
    background-color: var(--midnight-vault);
}

.atrium-prose {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    line-height: 1.85;
    color: var(--aged-ivory);
    max-width: 38ch;
    margin-top: 18px;
}

.atrium-prose em {
    font-family: var(--font-display);
    font-style: italic;
    color: var(--champagne-gleam);
    font-weight: 700;
}

/* ============================================================
   SECTION 3: GALLERY
   ============================================================ */
.section--gallery {
    background-color: var(--obsidian-night);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4vh 6vw;
}

.gallery-header {
    text-align: center;
    margin-bottom: 4vh;
}

.hex-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: clamp(10px, 1.5vh, 20px);
    width: 100%;
    max-width: 1180px;
}

.hex-row {
    display: flex;
    justify-content: center;
    gap: clamp(8px, 1.2vw, 18px);
}

.hex-row--b {
    transform: translateY(calc(clamp(-30px, -3vh, -20px)));
    margin-top: calc(clamp(-44px, -5vh, -34px));
    margin-bottom: calc(clamp(-44px, -5vh, -34px));
}

.hex-cell {
    --hex-w: clamp(140px, 16vw, 200px);
    width: var(--hex-w);
    height: calc(var(--hex-w) * 1.1547);
    position: relative;
    background-color: var(--admiral-blue);
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
    cursor: pointer;
    transition: transform 320ms cubic-bezier(0.215, 0.61, 0.355, 1),
                background-color 320ms ease;
    opacity: 0;
    transform: translateY(20px) scale(0.92);
    outline: none;
}

.section.is-active .hex-cell {
    opacity: 1;
    transform: translateY(0) scale(1);
    transition: transform 700ms cubic-bezier(0.215, 0.61, 0.355, 1),
                background-color 320ms ease,
                opacity 700ms ease;
    transition-delay: var(--cell-delay, 0ms);
}

.hex-cell::before {
    content: "";
    position: absolute;
    inset: 2px;
    background-color: var(--midnight-vault);
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
    z-index: 1;
}

.hex-inner {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 10% 14%;
    transition: color 320ms ease;
}

.hex-numeral {
    font-family: var(--font-label);
    font-size: clamp(0.65rem, 0.95vw, 0.85rem);
    letter-spacing: 0.3em;
    color: var(--deco-gold);
    margin-bottom: 6px;
}

.hex-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.05rem, 1.4vw, 1.35rem);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--champagne-gleam);
    margin-bottom: 6px;
}

.hex-text {
    font-family: var(--font-body);
    font-size: clamp(0.7rem, 0.85vw, 0.82rem);
    line-height: 1.55;
    color: var(--aged-ivory);
    opacity: 0.78;
}

.hex-cell:hover,
.hex-cell.is-hot {
    background-color: var(--champagne-gleam);
    transform: translateY(0) scale(1.08);
    z-index: 5;
}

.hex-cell:hover::before,
.hex-cell.is-hot::before {
    background-color: var(--admiral-blue);
}

.hex-cell:hover .hex-numeral,
.hex-cell.is-hot .hex-numeral {
    color: var(--champagne-gleam);
}

/* ============================================================
   SECTION 4: VAULT
   ============================================================ */
.section--vault {
    background-color: var(--obsidian-night);
    display: flex;
    align-items: center;
    justify-content: center;
}

.vault-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 0 8vw;
    max-width: 760px;
}

.vault-creed {
    list-style: none;
    margin-top: 24px;
    counter-reset: creed;
}

.creed-line {
    counter-increment: creed;
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.4vw, 1.18rem);
    line-height: 1.75;
    color: var(--aged-ivory);
    padding: 12px 0;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 700ms ease, transform 700ms ease;
    position: relative;
}

.creed-line::before {
    content: counter(creed, upper-roman) ".";
    font-family: var(--font-label);
    font-size: 0.85em;
    letter-spacing: 0.25em;
    color: var(--deco-gold);
    margin-right: 14px;
    opacity: 0.85;
}

.creed-line.is-revealed {
    opacity: 1;
    transform: translateY(0);
    transition-delay: var(--creed-delay, 0ms);
}

/* ---------- Fan relief borders ---------- */
.fan-border {
    position: absolute;
    top: 8vh;
    bottom: 8vh;
    width: 24px;
    z-index: 2;
    opacity: 0.7;
}

.fan-border--left { left: 4vw; }
.fan-border--right { right: 4vw; transform: scaleX(-1); }

.fan-path {
    stroke-dasharray: 80;
    stroke-dashoffset: 80;
    transition: stroke-dashoffset 900ms cubic-bezier(0.215, 0.61, 0.355, 1);
}

.section.is-active .fan-path {
    stroke-dashoffset: 0;
    transition-delay: var(--fan-delay, 0ms);
}

/* ============================================================
   SECTION 5: CROWN
   ============================================================ */
.section--crown {
    background-color: var(--obsidian-night);
    display: flex;
    align-items: center;
    justify-content: center;
}

.section--crown::before {
    content: "";
    position: absolute;
    inset: 0;
    background-color: rgba(13, 13, 20, 0);
    box-shadow: inset 0 0 220px 60px rgba(13, 13, 20, 0.9);
    z-index: 2;
    pointer-events: none;
}

.crown-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 0 6vw;
    max-width: 720px;
}

.monogram {
    width: clamp(110px, 14vw, 180px);
    height: clamp(110px, 14vw, 180px);
    display: block;
    margin: 0 auto 20px;
    filter: drop-shadow(0 0 18px rgba(201, 168, 76, 0.25));
}

.monogram-path {
    stroke-dasharray: 260;
    stroke-dashoffset: 260;
    transition: stroke-dashoffset 1400ms cubic-bezier(0.215, 0.61, 0.355, 1);
}

.section.is-active .monogram-path {
    stroke-dashoffset: 0;
    transition-delay: var(--mono-delay, 0ms);
}

.crown-title {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(2rem, 5vw, 4rem);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--champagne-gleam);
    margin-top: 12px;
}

.crown-meta {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.crown-tag {
    font-family: var(--font-label);
    font-size: clamp(0.85rem, 1.2vw, 1.05rem);
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--deco-gold);
    margin-bottom: 6px;
}

.crown-line {
    font-family: var(--font-body);
    font-size: clamp(0.85rem, 1.1vw, 1rem);
    color: var(--aged-ivory);
    line-height: 1.7;
}

.meta-key {
    font-family: var(--font-label);
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--burnished-copper);
    font-size: 0.8em;
}

.meta-value {
    font-family: var(--font-body);
    font-style: italic;
    color: var(--champagne-gleam);
}

.crown-foot {
    margin-top: 32px;
    font-family: var(--font-label);
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--deco-gold);
    font-size: clamp(0.65rem, 0.9vw, 0.78rem);
    opacity: 0.75;
}

/* ============================================================
   FLOOR INDICATOR (right rail)
   ============================================================ */
.floor-indicator {
    position: fixed;
    top: 50%;
    right: 26px;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 14px;
    z-index: 50;
    padding: 14px 8px;
    border-left: 1px solid rgba(201, 168, 76, 0.25);
    border-right: 1px solid rgba(201, 168, 76, 0.25);
}

.floor-dot {
    width: 14px;
    height: 14px;
    background: transparent;
    border: 1px solid var(--deco-gold);
    transform: rotate(45deg);
    cursor: pointer;
    padding: 0;
    transition: background-color 320ms ease, border-color 320ms ease, transform 320ms ease;
}

.floor-dot:hover {
    background-color: rgba(201, 168, 76, 0.35);
}

.floor-dot.is-active {
    background-color: var(--champagne-gleam);
    border-color: var(--champagne-gleam);
    transform: rotate(45deg) scale(1.2);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 880px) {
    .vertical-rule--left { left: 4vw; }
    .vertical-rule--right { right: 4vw; }

    .atrium-grid {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 2fr 1fr;
    }
    .atrium-flank--left { transform: translateY(-100%); }
    .atrium-flank--right { transform: translateY(100%); }
    .section.is-active .atrium-flank--left,
    .section.is-active .atrium-flank--right { transform: translateY(0); }

    .relief { max-width: 80vw; max-height: 100%; }

    .hex-cell { --hex-w: clamp(95px, 22vw, 140px); }
    .hex-text { display: none; }

    .floor-indicator { right: 12px; }
    .fan-border--left { left: 2vw; }
    .fan-border--right { right: 2vw; }
}

@media (max-width: 560px) {
    .hex-row { gap: 6px; }
    .hex-cell { --hex-w: 84px; }
    .hex-numeral { display: none; }
}