/* ═══════════════════════════════════════════════════════
   continua.st — Anti-Design Ocean Descent
   Colors: #0b1a2b #0f2a3d #2d8fa5 #e8f0f2 #c4d6db #5a8a94 #6b2d2d #d4a843
   Fonts: Jost 900, Anybody 700, Cormorant Garamond 400/600, Azeret Mono 400
   ═══════════════════════════════════════════════════════ */

/* ── RESET & BASE ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: auto;
    overflow-x: hidden;
}

body {
    background-color: #0b1a2b;
    color: #c4d6db;
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-weight: 400;
    font-size: clamp(1.05rem, 1.4vw, 1.25rem);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ── SKELETON SHIMMER ANIMATION ── */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes pressureSquash {
    0% { transform: scaleX(1); }
    50% { transform: scaleX(0.97); }
    100% { transform: scaleX(1); }
}

/* ── THE UNBROKEN LINE — SVG ── */
.unbroken-line {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 1;
    opacity: 0.6;
}

/* ── ZONES (Sections) ── */
.zone {
    position: relative;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

.zone__sentinel {
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 1px;
    pointer-events: none;
}

.zone.pressure-transition {
    animation: pressureSquash 200ms ease-in-out;
}

/* ── ZONE: THE SURFACE ── */
.zone--surface {
    background-color: #0b1a2b;
    padding: clamp(2rem, 8vh, 6rem) 1rem;
}

/* ── ZONE: THE THERMOCLINE ── */
.zone--thermocline {
    background-color: #0f2a3d;
    padding: clamp(2rem, 8vh, 6rem) 1rem;
}

/* ── ZONE: THE MESOPELAGIC ── */
.zone--mesopelagic {
    background-color: #0f2a3d;
    padding: clamp(2rem, 8vh, 6rem) 1rem;
}

/* ── ZONE: THE BATHYAL ── */
.zone--bathyal {
    background-color: #0b1a2b;
    padding: clamp(2rem, 8vh, 6rem) 1rem;
}

/* ── ZONE: THE ABYSSAL ── */
.zone--abyssal {
    background-color: #0b1a2b;
    padding: 0 1rem;
    min-height: 100svh;
    justify-content: center;
}

/* ── LEATHER TEXTURES (CSS-only) ── */
.leather-texture--cracked {
    background:
        radial-gradient(ellipse 2px 3px at 30% 40%, rgba(45,143,165,0.04) 0%, transparent 100%),
        radial-gradient(ellipse 3px 2px at 70% 60%, rgba(107,45,45,0.03) 0%, transparent 100%),
        repeating-conic-gradient(from 0deg at 50% 50%, transparent 0deg, rgba(232,240,242,0.01) 1deg, transparent 2deg),
        conic-gradient(from 45deg at 20% 30%, rgba(107,45,45,0.06) 0deg, transparent 30deg, rgba(45,143,165,0.04) 90deg, transparent 120deg),
        conic-gradient(from 190deg at 75% 65%, rgba(107,45,45,0.05) 0deg, transparent 25deg, rgba(45,143,165,0.03) 70deg, transparent 100deg),
        linear-gradient(175deg, #0f2a3d 0%, #0b1a2b 100%);
    background-blend-mode: overlay, overlay, overlay, overlay, overlay, normal;
}

.leather-texture--tooled {
    background:
        repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(45,143,165,0.04) 39px, rgba(45,143,165,0.04) 40px),
        repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(45,143,165,0.04) 39px, rgba(45,143,165,0.04) 40px),
        radial-gradient(ellipse 2px 3px at 30% 40%, rgba(45,143,165,0.04) 0%, transparent 100%),
        radial-gradient(ellipse 3px 2px at 70% 60%, rgba(107,45,45,0.03) 0%, transparent 100%),
        linear-gradient(175deg, #0b1a2b 0%, #0f2a3d 50%, #0b1a2b 100%);
    box-shadow:
        inset 0 0 60px rgba(15,42,61,0.5),
        inset 0 0 120px rgba(11,26,43,0.3);
}

/* ── INNER CONTAINERS ── */
.zone__inner {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
}

.zone__inner--narrow {
    max-width: 420px;
    margin: 0 auto;
}

.zone__inner--wide {
    max-width: 900px;
    margin: 0 auto;
}

.zone__inner--fluctuating {
    max-width: 480px;
    margin: 0 auto;
}

.zone__inner--void {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

/* ── DISPLAY TITLE ── */
.display-title {
    font-family: 'Jost', 'Futura', sans-serif;
    font-weight: 900;
    font-size: clamp(3rem, 12vw, 9rem);
    line-height: 0.85;
    text-transform: uppercase;
    letter-spacing: -0.04em;
    color: #e8f0f2;
    margin-bottom: clamp(2rem, 4vh, 4rem);
}

/* ── DISPLAY SUBTITLE ── */
.display-subtitle {
    font-family: 'Jost', 'Futura', sans-serif;
    font-weight: 900;
    font-size: clamp(1.5rem, 5vw, 3.5rem);
    line-height: 0.9;
    text-transform: uppercase;
    letter-spacing: -0.03em;
    color: #e8f0f2;
    padding: clamp(1rem, 3vh, 2rem) 0;
}

/* ── SUB-HEADLINE ── */
.sub-headline {
    font-family: 'Anybody', 'Jost', sans-serif;
    font-weight: 700;
    font-size: clamp(1rem, 3vw, 1.75rem);
    text-transform: uppercase;
    letter-spacing: 0.35em;
    color: #2d8fa5;
    margin-bottom: clamp(1.5rem, 3vh, 3rem);
    font-stretch: 125%;
}

.sub-headline--collision {
    margin-top: -1.5rem;
}

/* ── BODY TEXT ── */
.body-text {
    color: #c4d6db;
    margin-bottom: 1.5em;
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-weight: 400;
    font-size: clamp(1.05rem, 1.4vw, 1.25rem);
    line-height: 1.65;
}

.body-text--inverted {
    color: #e8f0f2;
}

.body-text strong, .body-text em {
    font-weight: 600;
}

/* ── META TEXT ── */
.meta-text {
    font-family: 'Azeret Mono', monospace;
    font-weight: 400;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    color: #5a8a94;
    margin-top: 2rem;
}

.meta-text--final {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    white-space: nowrap;
}

/* ── CATALOG NUMBERS ── */
.catalog-number {
    position: sticky;
    top: 1rem;
    left: 1rem;
    font-family: 'Azeret Mono', monospace;
    font-weight: 400;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    color: #5a8a94;
    z-index: 10;
    align-self: flex-start;
    margin-bottom: -2rem;
}

/* ── SPECIMEN STAMPS ── */
.specimen-stamp {
    border: 3px double #2d8fa5;
    padding: 0.75rem 1.5rem;
    display: inline-block;
    margin: 2rem 0;
}

.specimen-stamp--oxblood {
    border-color: #6b2d2d;
}

.stamp-text {
    font-family: 'Anybody', 'Jost', sans-serif;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: #2d8fa5;
}

.specimen-stamp--oxblood .stamp-text {
    color: #6b2d2d;
}

/* ── RULE STACKS ── */
.rule-stack {
    margin: clamp(2rem, 5vh, 4rem) 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.rule {
    border: none;
    border-top: 4px solid #2d8fa5;
    opacity: 0.7;
}

.rule--wide {
    width: 100%;
}

.rule--medium {
    width: 65%;
}

.rule--narrow {
    width: 35%;
}

.rule-stack--inverted {
    max-width: 900px;
    margin: clamp(2rem, 5vh, 4rem) auto;
    padding: 0 1rem;
}

/* ── BREAKOUT FULL-BLEED ── */
.breakout-full {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    padding: clamp(2rem, 6vh, 5rem) clamp(1rem, 3vw, 2rem);
    background-color: #0b1a2b;
    margin-top: 0.25rem;
    margin-bottom: 0.25rem;
}

/* ── SKELETON LOADING BLOCKS ── */
.skeleton-block {
    padding: 1.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 2rem 0;
}

.skeleton-block--wide {
    max-width: 100%;
}

.skeleton-line {
    height: 1rem;
    border-radius: 2px;
    background: linear-gradient(90deg, #0f2a3d 25%, #1a3a50 50%, #0f2a3d 75%);
    background-size: 200% 100%;
    animation: shimmer 2.5s infinite linear;
}

.skeleton-line--full { width: 100%; }
.skeleton-line--three-quarter { width: 75%; }
.skeleton-line--half { width: 50%; }
.skeleton-line--quarter { width: 25%; }

/* ── MICRO COLUMNS ── */
.micro-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin: 2rem 0;
}

.micro-col .body-text {
    font-size: clamp(0.9rem, 1.1vw, 1.05rem);
    line-height: 1.55;
}

/* ── ROTATED BLOCK ── */
.rotated-block {
    transform: rotate(1.5deg);
    margin: 2rem -0.5rem;
    padding: 0 0.5rem;
}

/* ── VERTICAL TEXT ── */
.vertical-text-block {
    margin: 3rem 0;
    overflow: hidden;
}

.vertical-text {
    writing-mode: vertical-rl;
    font-family: 'Jost', 'Futura', sans-serif;
    font-weight: 900;
    font-size: clamp(1.2rem, 2.5vw, 2rem);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #5a8a94;
    opacity: 0.5;
    height: clamp(200px, 30vh, 400px);
}

/* ── GOLD MOMENT — Single use ── */
.gold-moment {
    color: #d4a843;
    font-family: 'Jost', 'Futura', sans-serif;
    font-weight: 900;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    text-transform: uppercase;
    display: inline;
    line-height: 1;
    position: relative;
}

/* ── ABYSSAL TEXT ── */
.abyssal-text {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-weight: 400;
    font-style: italic;
    font-size: clamp(1.2rem, 2vw, 1.8rem);
    color: #5a8a94;
    text-align: center;
    letter-spacing: 0.02em;
    opacity: 0.7;
}

/* ── LARGE SPACING VOIDS ── */
.zone--surface {
    padding-bottom: clamp(4rem, 12vh, 8rem);
}

.zone--thermocline {
    padding-top: 0.25rem;
}

.zone--abyssal {
    padding-top: 40vh;
    padding-bottom: 10vh;
}

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
    .micro-columns {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .catalog-number {
        position: relative;
        top: auto;
        left: auto;
        display: block;
        padding: 1rem;
    }

    .breakout-full {
        padding: 1.5rem 0.75rem;
    }
}