/* ============================================================
   blockchain.day v2 -- The Buried Cathedral of Data
   Archaeological / geological metaphor for the distributed ledger.
   ============================================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Source Code Pro', monospace;
    font-weight: 300;
    background: #0a0a0f;
    color: #a09080;
    line-height: 1.75;
    overflow-x: hidden;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* --- Type primitives --- */
.kicker {
    font-family: 'Cinzel', serif;
    font-weight: 400;
    font-size: 12px;
    letter-spacing: 0.18em;
    color: #706050;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 18px;
}

.kicker--core {
    color: #d4a574;
}

.stratum-title {
    font-family: 'Playfair Display', serif;
    font-weight: 900;
    font-size: clamp(28px, 5vw, 64px);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #e8c49a;
    line-height: 1.05;
    margin-bottom: 26px;
}

.stratum-prose {
    font-family: 'Source Code Pro', monospace;
    font-weight: 300;
    font-size: 16px;
    color: #a09080;
    line-height: 1.85;
    max-width: 540px;
}

.stratum-footnote {
    font-family: 'Source Code Pro', monospace;
    font-weight: 300;
    font-size: 14px;
    color: #706050;
    line-height: 1.7;
    max-width: 460px;
    margin-top: 12px;
}

.meta-anchor {
    font-family: 'Cinzel', serif;
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.22em;
    color: #706050;
    text-transform: uppercase;
    display: inline-block;
}

/* --- Bioluminescent particle field --- */
.particles {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 4;
    overflow: hidden;
}

.spore {
    position: absolute;
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: #d4a574;
    opacity: 0;
    filter: blur(0.4px);
    will-change: transform, opacity;
    animation-name: drift, spore-pulse;
    animation-iteration-count: infinite, infinite;
    animation-timing-function: linear, ease-in-out;
    animation-direction: normal, alternate;
}

@keyframes drift {
    0%   { transform: translate3d(0, 0, 0); }
    25%  { transform: translate3d(20px, -28px, 0); }
    50%  { transform: translate3d(-12px, -56px, 0); }
    75%  { transform: translate3d(28px, -82px, 0); }
    100% { transform: translate3d(-6px, -120px, 0); }
}

@keyframes spore-pulse {
    0%   { opacity: 0;    }
    20%  { opacity: 0.30; }
    50%  { opacity: 0.18; }
    80%  { opacity: 0.28; }
    100% { opacity: 0;    }
}

body.core-active .spore {
    background: #e8c49a;
    animation-duration: var(--drift-fast, 4s), var(--pulse-fast, 3s);
}

/* --- Geological scroll indicator (core sample) --- */
.scroll-indicator {
    position: fixed;
    top: 50%;
    right: 16px;
    transform: translateY(-50%);
    width: 4px;
    height: 60vh;
    z-index: 6;
    pointer-events: none;
}

.scroll-indicator__track {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        #1a1a20 0%,
        #151518 30%,
        #0d0815 60%,
        #1a1a20 90%,
        #2a4a6b 100%
    );
    opacity: 0.55;
    border-radius: 2px;
}

.scroll-indicator__fill {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 0%;
    background: linear-gradient(
        to bottom,
        #1a1a20 0%,
        #151518 18%,
        #0d0815 40%,
        #2a4a6b 60%,
        #706050 78%,
        #d4a574 92%,
        #e8c49a 100%
    );
    border-radius: 2px;
    box-shadow: 0 0 12px rgba(212, 165, 116, 0.35);
    transition: height 120ms linear;
}

.scroll-indicator__strata {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
}

.stratum {
    flex: 1;
    border-bottom: 1px solid rgba(160, 144, 128, 0.12);
}

.stratum:last-child {
    border-bottom: none;
}

/* ============================================================
   OPENING VIEWPORT -- Surface Basalt
   ============================================================ */
.surface {
    position: relative;
    height: 100vh;
    background: #0a0a0f;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.surface__crack {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

#crackPath {
    stroke-dasharray: 3000;
    stroke-dashoffset: 3000;
    animation: crack-draw 1200ms ease-out 500ms forwards;
}

#crackGlowPath {
    stroke-dasharray: 3000;
    stroke-dashoffset: 3000;
    opacity: 0;
    animation:
        crack-draw 1200ms ease-out 500ms forwards,
        crack-glow 800ms ease-in 1200ms forwards,
        crack-pulse 4s ease-in-out 2000ms infinite;
}

@keyframes crack-draw {
    to { stroke-dashoffset: 0; }
}

@keyframes crack-glow {
    from { opacity: 0; filter: drop-shadow(0 0 0 #d4a574); }
    to   { opacity: 0.85; filter: drop-shadow(0 0 8px #d4a574); }
}

@keyframes crack-pulse {
    0%, 100% { filter: drop-shadow(0 0 6px #d4a574); }
    50%      { filter: drop-shadow(0 0 14px #d4a574); }
}

.surface__title-wrap {
    position: relative;
    z-index: 2;
    text-align: center;
    opacity: 0;
    transform: translateY(8px);
    animation: surface-title-in 600ms cubic-bezier(0.25, 0.46, 0.45, 0.94) 1800ms forwards;
}

.surface__title {
    font-family: 'Playfair Display', serif;
    font-weight: 900;
    font-size: clamp(40px, 8vw, 96px);
    letter-spacing: 0.08em;
    color: #e8c49a;
    text-transform: lowercase;
    text-shadow:
        0 1px 0 rgba(0, 0, 0, 0.95),
        0 -1px 0 rgba(232, 196, 154, 0.08),
        0 2px 4px rgba(0, 0, 0, 0.8),
        0 0 18px rgba(212, 165, 116, 0.18);
}

.surface__subtitle {
    font-family: 'Cinzel', serif;
    font-weight: 400;
    font-size: 13px;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: #706050;
    margin-top: 18px;
}

@keyframes surface-title-in {
    to { opacity: 1; transform: translateY(0); }
}

.scroll-cue {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    opacity: 0;
    animation:
        cue-in 600ms ease 2400ms forwards,
        cue-pulse 2400ms ease-in-out 3000ms infinite;
}

.scroll-cue__char {
    font-family: 'Cinzel', serif;
    font-weight: 400;
    font-size: 22px;
    letter-spacing: 0.12em;
    color: #d4a574;
    display: inline-block;
}

@keyframes cue-in {
    to { opacity: 0.85; }
}

@keyframes cue-pulse {
    0%, 100% { transform: translateX(-50%) translateY(0);  opacity: 0.55; }
    50%      { transform: translateX(-50%) translateY(8px); opacity: 0.95; }
}

/* ============================================================
   STRATUM SECTIONS -- Layered Depth
   ============================================================ */
.stratum-section {
    position: relative;
    min-height: 100vh;
    padding: 120px 6vw 100px;
    overflow: hidden;
}

.stratum-section--01 { background: #0a0a0f; }
.stratum-section--02 { background: #060609; }
.stratum-section--03 { background: #0d0815; }
.stratum-section--04 { background: #060609; }
.stratum-section--05 { background: #0d0815; }

.fracture-divider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    pointer-events: none;
    z-index: 2;
}

.fracture-divider--core {
    height: 80px;
}

/* z-pattern grid: top-left, top-right, bottom-left, bottom-right */
.stratum-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    grid-column-gap: 32px;
    grid-row-gap: 80px;
    max-width: 1480px;
    margin: 0 auto;
    padding-top: 60px;
}

.z-cell {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 800ms cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 800ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.z-cell.is-revealed {
    opacity: 1;
    transform: translateY(0);
}

/* unequal-rhythm grid: 1:1:2:1:1:2:1:1 -> use spans that respect this */
.z-cell--top-left    { grid-column: 1 / span 4; }
.z-cell--top-right   { grid-column: 5 / span 4; padding-left: 4vw; }
.z-cell--bottom-left { grid-column: 2 / span 3; }
.z-cell--bottom-right{ grid-column: 6 / span 3; }

/* ============================================================
   BLOCK TABLETS -- Pure CSS obsidian
   ============================================================ */
.block-tablet {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    gap: 8px;
    padding: 28px 32px;
    min-width: 260px;
    background: linear-gradient(155deg, #151518 0%, #0d0815 60%, #060609 100%);
    border-radius: 4px;
    box-shadow:
        0 1px 0 #1a1a20,
        0 2px 0 #151518,
        0 4px 8px rgba(0, 0, 0, 0.6),
        inset 0 1px 1px rgba(232, 196, 154, 0.05),
        inset 0 -1px 0 rgba(0, 0, 0, 0.9);
    cursor: default;
    transition: transform 400ms cubic-bezier(0.25, 0.46, 0.45, 0.94),
                box-shadow 400ms ease;
    transform: scale(0.9);
    will-change: transform, box-shadow;
}

.is-revealed .block-tablet {
    transform: scale(1);
    box-shadow:
        0 1px 0 #1a1a20,
        0 2px 0 #151518,
        0 6px 14px rgba(0, 0, 0, 0.7),
        0 0 0 1px rgba(212, 165, 116, 0.04),
        inset 0 1px 1px rgba(232, 196, 154, 0.06),
        inset 0 -1px 0 rgba(0, 0, 0, 0.9);
}

.block-tablet--wide  { min-width: 320px; padding: 32px 40px; }
.block-tablet--tall  { min-width: 280px; padding: 36px 32px; }
.block-tablet--small { min-width: 132px; padding: 18px 20px; }

.block-tablet__label {
    font-family: 'Cinzel', serif;
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.22em;
    color: #706050;
    text-transform: uppercase;
    transition: color 400ms ease;
}

.block-tablet__hash {
    font-family: 'Source Code Pro', monospace;
    font-weight: 400;
    font-size: 10px;
    letter-spacing: 0.06em;
    color: #706050;
    word-break: break-all;
    transition: color 400ms ease, text-shadow 400ms ease;
}

.block-tablet__nonce {
    font-family: 'Source Code Pro', monospace;
    font-weight: 300;
    font-size: 11px;
    color: #2a4a6b;
    letter-spacing: 0.04em;
}

.block-tablet:hover .block-tablet__hash,
.block-tablet:hover .block-tablet__label {
    color: #e8c49a;
    text-shadow: 0 0 8px rgba(212, 165, 116, 0.4);
}

.block-tablet--glow {
    box-shadow:
        0 1px 0 #1a1a20,
        0 2px 0 #151518,
        0 6px 18px rgba(0, 0, 0, 0.7),
        0 0 24px rgba(212, 165, 116, 0.18),
        inset 0 1px 1px rgba(232, 196, 154, 0.12),
        inset 0 -1px 0 rgba(0, 0, 0, 0.9);
}

.is-revealed .block-tablet--glow {
    box-shadow:
        0 1px 0 #1a1a20,
        0 2px 0 #151518,
        0 8px 22px rgba(0, 0, 0, 0.7),
        0 0 36px rgba(212, 165, 116, 0.3),
        inset 0 1px 1px rgba(232, 196, 154, 0.18),
        inset 0 -1px 0 rgba(0, 0, 0, 0.9);
}

.block-tablet--glow .block-tablet__hash,
.block-tablet--glow .block-tablet__label {
    color: #d4a574;
}

/* --- Veins emerging from tablets --- */
.vein {
    position: absolute;
    background: #2a4a6b;
    overflow: hidden;
}

.vein::before {
    content: "";
    position: absolute;
    width: 4px;
    height: 100%;
    background: radial-gradient(circle at center,
        rgba(212, 165, 116, 0.85) 0%,
        rgba(212, 165, 116, 0.35) 40%,
        transparent 75%);
    filter: blur(0.5px);
    animation: pulse-travel 3s linear infinite;
}

.vein--right {
    top: 50%;
    right: -120px;
    width: 120px;
    height: 1px;
    transform: translateY(-50%);
}

.vein--right::before {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    top: -2.5px;
    transform: translateX(-3px);
    animation: pulse-travel-h 3s linear infinite;
}

.vein--down {
    left: 50%;
    bottom: -100px;
    width: 1px;
    height: 100px;
    transform: translateX(-50%);
}

.vein--down::before {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    left: -2.5px;
    transform: translateY(-3px);
    animation: pulse-travel-v 3s linear infinite;
}

.vein--connect {
    position: relative;
    flex: 1;
    height: 1px;
    background: #2a4a6b;
    overflow: visible;
}

.vein--connect::before {
    content: "";
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: radial-gradient(circle at center,
        #d4a574 0%, rgba(212, 165, 116, 0.4) 60%, transparent 100%);
    top: -2.5px;
    left: 0;
    animation: pulse-travel-h 3s linear infinite;
}

@keyframes pulse-travel-h {
    0%   { transform: translateX(-6px); opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 1; }
    100% { transform: translateX(120px); opacity: 0; }
}

@keyframes pulse-travel-v {
    0%   { transform: translateY(-6px); opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 1; }
    100% { transform: translateY(100px); opacity: 0; }
}

@keyframes pulse-travel {
    from { transform: translateX(0); }
    to   { transform: translateX(100%); }
}

/* --- Vein cluster decorative --- */
.vein-cluster {
    position: relative;
    height: 160px;
    width: 100%;
    max-width: 420px;
}

.vein-line {
    position: absolute;
    background: #2a4a6b;
    overflow: hidden;
}

.vein-line::after {
    content: "";
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: radial-gradient(circle at center,
        rgba(212, 165, 116, 0.95) 0%,
        rgba(212, 165, 116, 0.4) 50%,
        transparent 100%);
    filter: blur(0.4px);
}

.vein-line--horizontal {
    top: 30px;
    left: 0;
    width: 100%;
    height: 1px;
}

.vein-line--horizontal::after {
    top: -2.5px;
    left: 0;
    animation: vein-h-travel 4.2s linear infinite;
}

.vein-line--horizontal.vein-line--delayed {
    top: 110px;
}

.vein-line--horizontal.vein-line--delayed::after {
    animation: vein-h-travel 4.2s linear 1.4s infinite;
}

.vein-line--diagonal {
    top: 30px;
    left: 30%;
    width: 50%;
    height: 1px;
    transform-origin: left center;
    transform: rotate(28deg);
}

.vein-line--diagonal::after {
    top: -2.5px;
    left: 0;
    animation: vein-h-travel 5s linear 0.6s infinite;
}

@keyframes vein-h-travel {
    0%   { transform: translateX(-6px); opacity: 0; }
    8%   { opacity: 1; }
    92%  { opacity: 1; }
    100% { transform: translateX(100%); opacity: 0; }
}

/* --- Block cluster (chained tablets) --- */
.block-cluster {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: nowrap;
}

/* --- Glyph row --- */
.glyph-row {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    padding: 22px 28px;
    background: rgba(13, 8, 21, 0.55);
    border-top: 1px solid rgba(212, 165, 116, 0.1);
    border-bottom: 1px solid rgba(212, 165, 116, 0.1);
    width: fit-content;
    max-width: 100%;
}

.glyph {
    font-family: 'Cinzel', serif;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.22em;
    color: #706050;
    text-transform: uppercase;
}

.glyph--accent {
    color: #d4a574;
    text-shadow: 0 0 6px rgba(212, 165, 116, 0.35);
}

/* --- Ledger lines --- */
.ledger-lines {
    list-style: none;
    border-top: 1px solid rgba(160, 144, 128, 0.1);
    border-bottom: 1px solid rgba(160, 144, 128, 0.1);
    max-width: 460px;
}

.ledger-lines li {
    display: grid;
    grid-template-columns: 80px 1fr 100px;
    align-items: center;
    gap: 18px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(160, 144, 128, 0.06);
    font-family: 'Source Code Pro', monospace;
    font-size: 12px;
    color: #706050;
}

.ledger-lines li:last-child {
    border-bottom: none;
    color: #a09080;
}

.ledger-lines__index {
    font-family: 'Cinzel', serif;
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.18em;
    color: #706050;
}

.ledger-lines__hash {
    color: #a09080;
    letter-spacing: 0.05em;
}

.ledger-lines__time {
    font-size: 11px;
    color: #2a4a6b;
    text-align: right;
    letter-spacing: 0.06em;
}

/* --- Amber thread --- */
.amber-thread {
    position: relative;
    width: 100%;
    max-width: 420px;
    height: 80px;
    background: linear-gradient(90deg,
        rgba(42, 74, 107, 0) 0%,
        rgba(42, 74, 107, 0.45) 12%,
        rgba(212, 165, 116, 0.35) 50%,
        rgba(42, 74, 107, 0.45) 88%,
        rgba(42, 74, 107, 0) 100%);
    border-radius: 2px;
    overflow: hidden;
}

.amber-thread__pulse {
    position: absolute;
    top: 50%;
    left: 0;
    width: 14px;
    height: 14px;
    transform: translateY(-50%);
    border-radius: 50%;
    background: radial-gradient(circle at center,
        #e8c49a 0%, #d4a574 40%, transparent 80%);
    filter: blur(0.4px);
    animation: amber-travel 3.6s linear infinite;
}

.amber-thread__pulse--b {
    animation-delay: 1.8s;
    background: radial-gradient(circle at center,
        #d4a574 0%, rgba(212, 165, 116, 0.6) 40%, transparent 80%);
}

@keyframes amber-travel {
    0%   { left: -6%;  opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 1; }
    100% { left: 102%; opacity: 0; }
}

/* ============================================================
   THE CORE -- Inverted palette, Nonce Forge
   ============================================================ */
.core {
    position: relative;
    min-height: 120vh;
    padding: 140px 6vw 120px;
    background:
        radial-gradient(ellipse at center 60%,
            rgba(212, 165, 116, 0.12) 0%,
            rgba(232, 196, 154, 0.08) 25%,
            rgba(13, 8, 21, 0.95) 65%,
            #0a0a0f 100%),
        #0a0a0f;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.core__halo {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: radial-gradient(circle at center,
        rgba(232, 196, 154, 0.45) 0%,
        rgba(212, 165, 116, 0.20) 30%,
        transparent 70%);
    pointer-events: none;
    transition: width 1200ms ease, height 1200ms ease, opacity 1200ms ease;
    opacity: 0;
}

.core.is-revealed .core__halo {
    width: 80vmax;
    height: 80vmax;
    opacity: 1;
}

.core__inner {
    position: relative;
    z-index: 2;
    max-width: 720px;
    text-align: center;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1000ms cubic-bezier(0.25, 0.46, 0.45, 0.94) 200ms,
                transform 1000ms cubic-bezier(0.25, 0.46, 0.45, 0.94) 200ms;
}

.core.is-revealed .core__inner {
    opacity: 1;
    transform: translateY(0);
}

.core__title {
    font-family: 'Playfair Display', serif;
    font-weight: 900;
    font-size: clamp(36px, 7vw, 80px);
    letter-spacing: 0.08em;
    color: #e8c49a;
    text-transform: uppercase;
    line-height: 1.05;
    margin-bottom: 50px;
    text-shadow: 0 0 28px rgba(212, 165, 116, 0.35);
}

/* --- The Nonce Forge --- */
.forge {
    position: relative;
    width: 100%;
    max-width: 480px;
    margin: 0 auto 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
}

.forge__tablet {
    position: relative;
    width: 320px;
    height: 200px;
    background: linear-gradient(155deg, #151518 0%, #0d0815 60%, #060609 100%);
    border-radius: 6px;
    box-shadow:
        0 1px 0 #1a1a20,
        0 2px 0 #151518,
        0 6px 16px rgba(0, 0, 0, 0.7),
        inset 0 1px 1px rgba(232, 196, 154, 0.05),
        inset 0 -1px 0 rgba(0, 0, 0, 0.9);
    overflow: hidden;
    transition: background 1500ms ease, box-shadow 1500ms ease;
}

.forge__tablet.is-heating {
    background: linear-gradient(155deg, #2a1a10 0%, #4a2a18 50%, #6a3a20 100%);
    box-shadow:
        0 1px 0 #1a1a20,
        0 2px 0 #151518,
        0 8px 22px rgba(0, 0, 0, 0.7),
        0 0 40px rgba(212, 165, 116, 0.55),
        inset 0 1px 2px rgba(232, 196, 154, 0.18),
        inset 0 -1px 0 rgba(0, 0, 0, 0.9);
}

.forge__tablet.is-forged {
    background: linear-gradient(155deg, #d4a574 0%, #e8c49a 50%, #d4a574 100%);
    box-shadow:
        0 1px 0 #1a1a20,
        0 2px 0 #151518,
        0 8px 30px rgba(0, 0, 0, 0.7),
        0 0 80px rgba(232, 196, 154, 0.7),
        inset 0 2px 4px rgba(255, 240, 220, 0.45),
        inset 0 -1px 0 rgba(106, 76, 50, 0.6);
}

.forge__seam {
    position: absolute;
    top: 0;
    left: 50%;
    width: 0;
    height: 100%;
    background: linear-gradient(to bottom,
        rgba(232, 196, 154, 0) 0%,
        rgba(232, 196, 154, 0.9) 50%,
        rgba(232, 196, 154, 0) 100%);
    transform: translateX(-50%);
    transition: width 800ms ease, opacity 800ms ease;
    opacity: 0;
    pointer-events: none;
}

.forge__tablet.is-cracked .forge__seam {
    width: 6px;
    opacity: 1;
    box-shadow: 0 0 24px #e8c49a, 0 0 48px rgba(212, 165, 116, 0.5);
}

.forge__inscription {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    opacity: 0;
    transition: opacity 600ms ease;
    text-align: center;
    padding: 0 18px;
}

.forge__tablet.is-forged .forge__inscription {
    opacity: 1;
}

.forge__label {
    font-family: 'Cinzel', serif;
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 0.22em;
    color: #1a1a20;
    text-transform: uppercase;
    text-shadow: 0 1px 0 rgba(255, 240, 220, 0.4);
}

.forge__hash {
    font-family: 'Source Code Pro', monospace;
    font-weight: 400;
    font-size: 11px;
    letter-spacing: 0.05em;
    color: #1a1a20;
    word-break: break-all;
    max-width: 280px;
    line-height: 1.5;
}

.forge__nonce-row {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 14px 24px;
    border: 1px solid rgba(112, 96, 80, 0.25);
    border-radius: 2px;
    background: rgba(13, 8, 21, 0.55);
}

.forge__nonce-label {
    font-family: 'Cinzel', serif;
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.22em;
    color: #706050;
    text-transform: uppercase;
}

.forge__nonce-value {
    font-family: 'Source Code Pro', monospace;
    font-weight: 400;
    font-size: 14px;
    color: #d4a574;
    letter-spacing: 0.1em;
    min-width: 120px;
    text-align: left;
}

.forge__status {
    font-family: 'Source Code Pro', monospace;
    font-weight: 300;
    font-size: 12px;
    color: #706050;
    letter-spacing: 0.08em;
    text-transform: lowercase;
    transition: color 600ms ease;
}

.forge__status.is-success {
    color: #e8c49a;
    text-shadow: 0 0 10px rgba(212, 165, 116, 0.4);
}

.core__prose {
    font-family: 'Source Code Pro', monospace;
    font-weight: 300;
    font-size: 16px;
    color: #a09080;
    line-height: 1.85;
    max-width: 560px;
    margin: 0 auto 48px;
}

.core__signature {
    font-family: 'Cinzel', serif;
    font-weight: 400;
    font-size: 11px;
    letter-spacing: 0.32em;
    color: #706050;
    text-transform: uppercase;
    display: inline-block;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
    .stratum-grid {
        grid-template-columns: 1fr;
        grid-row-gap: 56px;
        padding-top: 30px;
    }

    .z-cell--top-left,
    .z-cell--top-right,
    .z-cell--bottom-left,
    .z-cell--bottom-right {
        grid-column: 1 / -1;
        padding-left: 0;
    }

    .stratum-section {
        padding: 90px 5vw 70px;
    }

    .vein--right {
        right: -40px;
        width: 40px;
    }

    @keyframes pulse-travel-h {
        0%   { transform: translateX(-6px); opacity: 0; }
        10%  { opacity: 1; }
        90%  { opacity: 1; }
        100% { transform: translateX(40px);  opacity: 0; }
    }

    .scroll-indicator {
        right: 8px;
        height: 50vh;
    }

    .forge__tablet {
        width: 280px;
        height: 180px;
    }

    .block-cluster {
        flex-wrap: wrap;
    }
}

@media (max-width: 560px) {
    .surface__title {
        font-size: clamp(34px, 12vw, 64px);
    }

    .core__title {
        font-size: clamp(28px, 9vw, 56px);
    }

    .block-tablet {
        min-width: 220px;
        padding: 22px 24px;
    }

    .block-tablet--wide,
    .block-tablet--tall {
        min-width: 240px;
    }

    .block-tablet--small {
        min-width: 110px;
        padding: 14px 16px;
    }
}