/* footprint.market - Geological Stratigraphy */

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

:root {
    --charcoal: #1E1E1C;
    --parchment: #DDD3BD;
    --oxide-red: #C44536;
    --sand: #C4A87A;
    --dark-earth: #3B2F24;
    --linen: #F5F0E8;
    --tarnished-gold: #B8860B;
    --clay: #6B4E3D;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--linen);
    color: var(--dark-earth);
    font-family: 'Lora', serif;
    overflow-x: hidden;
    line-height: 1.8;
}

/* === Stratum Base === */
.stratum {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0;
}

.stratum-content {
    max-width: 900px;
    margin: 0 auto;
    padding: clamp(3rem, 6vw, 6rem) clamp(1.5rem, 4vw, 3rem);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 800ms ease, transform 800ms ease;
}

.stratum.revealed .stratum-content {
    opacity: 1;
    transform: translateY(0);
}

/* === Stratum Edges === */
.stratum-edge {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 60px;
    z-index: 2;
}

/* === Atmosphere (Stratum 1) === */
.stratum-atmosphere {
    background: var(--linen);
    text-align: center;
}

.stratum-atmosphere .stratum-content {
    opacity: 1;
    transform: none;
}

/* === Topsoil (Stratum 2) === */
.stratum-topsoil {
    background: var(--parchment);
}

.stratum-topsoil::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 30% 40%, rgba(59, 47, 36, 0.04) 1px, transparent 1px);
    background-size: 12px 12px;
    pointer-events: none;
}

/* === Subsoil (Stratum 3) === */
.stratum-subsoil {
    background: var(--sand);
}

.stratum-subsoil::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 60% 50%, rgba(59, 47, 36, 0.06) 1px, transparent 1px);
    background-size: 8px 8px;
    pointer-events: none;
}

/* === Bedrock (Stratum 4) === */
.stratum-bedrock {
    background: var(--clay);
    color: var(--parchment);
}

/* === Core (Stratum 5) === */
.stratum-core {
    background: var(--charcoal);
    color: var(--parchment);
}

/* === Stratum ID === */
.stratum-id {
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(0.6rem, 1vw, 0.75rem);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--tarnished-gold);
    display: block;
    margin-bottom: 0.75rem;
}

/* === Domain Name === */
.domain-name {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 300;
    font-size: clamp(2.5rem, 6vw, 5rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--dark-earth);
    margin-bottom: 1rem;
}

/* === Stratum Title === */
.stratum-title {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 600;
    font-size: clamp(1.8rem, 4vw, 3rem);
    color: inherit;
    margin-bottom: 1rem;
}

.closing-title {
    color: var(--tarnished-gold);
}

/* === Thesis / Body Text === */
.thesis-text {
    font-family: 'Lora', serif;
    font-weight: 400;
    font-style: italic;
    font-size: clamp(0.9rem, 1.4vw, 1.1rem);
    line-height: 1.9;
    color: var(--clay);
    max-width: 600px;
    margin: 0 auto;
}

.stratum-body {
    font-family: 'Lora', serif;
    font-weight: 400;
    font-style: italic;
    font-size: clamp(0.9rem, 1.3vw, 1.05rem);
    line-height: 1.9;
    color: inherit;
    opacity: 0.85;
    margin-bottom: 2rem;
}

/* === Botanical Illustration === */
.botanical-illustration {
    display: flex;
    justify-content: center;
    margin: 2rem 0;
}

.plant-svg {
    width: clamp(100px, 15vw, 180px);
    height: auto;
}

.plant-svg path {
    stroke-dasharray: 300;
    stroke-dashoffset: 300;
    transition: stroke-dashoffset 1.5s ease;
}

.stratum.revealed .plant-svg path {
    stroke-dashoffset: 0;
}

/* === Data Marker === */
.data-marker {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    border-left: 3px solid var(--tarnished-gold);
    padding-left: 1rem;
    margin-top: 1.5rem;
}

.marker-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(0.6rem, 0.9vw, 0.75rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--clay);
}

.marker-value {
    font-family: 'Lora', serif;
    font-weight: 700;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--dark-earth);
}

/* === Market Grid === */
.market-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1rem, 2vw, 2rem);
}

.market-cell {
    background: rgba(59, 47, 36, 0.1);
    border: 1px solid rgba(59, 47, 36, 0.2);
    padding: clamp(1rem, 2vw, 1.5rem);
    text-align: center;
    transition: transform 300ms, border-color 300ms;
}

.market-cell:hover {
    transform: translateY(-4px);
    border-color: var(--tarnished-gold);
}

.cell-heading {
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(0.55rem, 0.9vw, 0.7rem);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--dark-earth);
    margin-bottom: 0.5rem;
}

.cell-value {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 700;
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    color: var(--dark-earth);
    display: block;
    margin-bottom: 0.3rem;
}

.cell-unit {
    font-family: 'Lora', serif;
    font-size: clamp(0.6rem, 1vw, 0.8rem);
    color: var(--clay);
    font-style: italic;
}

/* === Fossil Record === */
.fossil-record {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.fossil-entry {
    border-left: 2px solid var(--tarnished-gold);
    padding-left: 1.5rem;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.fossil-epoch {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 600;
    font-size: clamp(1rem, 1.8vw, 1.4rem);
    color: var(--parchment);
    display: block;
    margin-bottom: 0.3rem;
}

.fossil-note {
    font-family: 'Lora', serif;
    font-weight: 400;
    font-style: italic;
    font-size: clamp(0.8rem, 1.1vw, 0.95rem);
    color: var(--sand);
    opacity: 0.8;
}

/* === Closing Stamp === */
.closing-stamp {
    text-align: center;
    margin-top: 3rem;
}

.stamp-domain {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 300;
    font-size: clamp(2rem, 5vw, 4rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--tarnished-gold);
    display: block;
}

.stamp-sub {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--sand);
    display: block;
    margin-top: 0.5rem;
}

/* === Responsive === */
@media (max-width: 768px) {
    .market-grid {
        grid-template-columns: 1fr;
    }
}