/* blockchain.day - Cyberpunk Data-Viz Dashboard */

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

:root {
    --deep-space: #08090D;
    --card-surface: #0E1117;
    --cyan-glow: #00E5FF;
    --consensus-green: #00FF94;
    --warm-amber: #FFB84D;
    --data-gray: #6B7994;
    --border-dark: #1A2233;
    --text-primary: #C9D1DC;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--deep-space);
    color: var(--text-primary);
    font-family: 'Source Sans 3', sans-serif;
    font-weight: 400;
    font-size: clamp(0.9rem, 1.1vw, 1rem);
    line-height: 1.8;
    overflow-x: hidden;
}

/* Particle Overlay */
#particle-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 100;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    border-radius: 50%;
    background-color: var(--cyan-glow);
}

/* Hero Section */
#hero {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: var(--deep-space);
}

#network-graph {
    position: absolute;
    top: 10%;
    left: 10%;
    width: 80%;
    height: 80%;
    z-index: 1;
}

#network-graph circle {
    fill: var(--cyan-glow);
    transition: transform 0.3s ease;
}

#network-graph line {
    stroke: var(--cyan-glow);
}

.node-light {
    r: 4;
    opacity: 0.35;
}

.node-full {
    r: 6;
    opacity: 0.6;
}

.node-validator {
    r: 8;
    opacity: 0.85;
}

#hero-title {
    position: relative;
    z-index: 2;
    font-family: 'Exo 2', sans-serif;
    font-weight: 300;
    font-size: clamp(2.5rem, 6vw, 5rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-primary);
    mix-blend-mode: screen;
    opacity: 0;
    transition: opacity 0.8s ease;
}

#hero-title.visible {
    opacity: 1;
}

#hero-subtitle {
    position: relative;
    z-index: 2;
    font-family: 'Source Sans 3', sans-serif;
    font-weight: 400;
    font-size: clamp(0.9rem, 1.5vw, 1.2rem);
    color: var(--data-gray);
    letter-spacing: 0.05em;
    margin-top: 1rem;
    opacity: 0;
    transition: opacity 1s ease 0.5s;
}

#hero-subtitle.visible {
    opacity: 1;
}

/* Node animations */
@keyframes pulse-node {
    0%, 100% { transform: scale(0.9); }
    50% { transform: scale(1.1); }
}

.node-pulse {
    animation: pulse-node 3s ease-in-out infinite;
    transform-origin: center;
    transform-box: fill-box;
}

/* Consensus Section */
#consensus {
    position: relative;
    min-height: 120vh;
    padding: 4rem 2rem;
    background-color: var(--deep-space);
}

.section-label {
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    font-size: clamp(1rem, 2vw, 1.5rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--cyan-glow);
    text-align: center;
    margin-bottom: 3rem;
}

#validator-columns {
    display: flex;
    justify-content: center;
    gap: 5vw;
    width: 100%;
    max-width: 90vw;
    margin: 0 auto;
    height: 80vh;
}

.validator-column {
    width: 30vw;
    max-width: 320px;
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: translateY(60px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.validator-column.visible {
    opacity: 1;
    transform: translateY(0);
}

.column-header {
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--data-gray);
    text-align: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-dark);
    margin-bottom: 1rem;
}

.block-stream {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.data-block {
    width: 100%;
    height: 48px;
    background-color: var(--card-surface);
    border-top: 2px solid var(--cyan-glow);
    display: flex;
    align-items: center;
    padding: 0 12px;
    font-family: 'Source Code Pro', monospace;
    font-size: 0.72rem;
    color: var(--data-gray);
    letter-spacing: 0.03em;
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.3s ease, transform 0.3s ease, box-shadow 0.15s ease;
    flex-shrink: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.data-block.visible {
    opacity: 1;
    transform: translateY(0);
}

.data-block.consensus-flash {
    border-top-color: var(--consensus-green);
    box-shadow: 0 0 20px rgba(0, 255, 148, 0.4);
}

#consensus-flash-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--consensus-green);
    opacity: 0;
    pointer-events: none;
    z-index: 50;
    transition: opacity 0.2s ease;
}

#consensus-flash-overlay.flash {
    opacity: 0.03;
}

/* Transaction Section */
#transaction {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--deep-space);
    padding: 4rem 2rem;
}

#tx-card {
    position: relative;
    width: 60vw;
    max-width: 800px;
    min-height: 60vh;
    padding: 3rem;
    background-color: var(--card-surface);
}

#tx-card-border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

#tx-card-border rect {
    transition: stroke-dashoffset 2s ease-in-out;
}

#tx-card-border.drawn rect {
    stroke-dashoffset: 0;
}

#tx-title {
    margin-bottom: 2rem;
}

#tx-fields {
    display: flex;
    flex-direction: column;
}

.tx-row {
    display: flex;
    gap: 1.5rem;
    padding: 0.75rem 0;
    opacity: 0;
}

.tx-row.visible {
    opacity: 1;
}

.tx-label {
    font-family: 'Source Code Pro', monospace;
    font-size: 0.8rem;
    letter-spacing: 0.03em;
    color: var(--data-gray);
    min-width: 100px;
    flex-shrink: 0;
}

.tx-value {
    font-family: 'Source Code Pro', monospace;
    font-size: 0.8rem;
    letter-spacing: 0.03em;
    color: var(--cyan-glow);
    overflow: hidden;
}

.tx-separator {
    height: 1px;
    background-color: var(--border-dark);
    width: 100%;
}

#tx-particle-trails {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

#tx-particle-trails line {
    transition: stroke-dashoffset 1.5s ease-in-out 2.5s;
}

#tx-particle-trails.drawn line {
    stroke-dashoffset: 0;
}

/* Hash Footer */
#hash-footer {
    width: 100%;
    overflow: hidden;
    background-color: var(--deep-space);
    padding: 1rem 0;
    border-top: 1px solid var(--border-dark);
}

#hash-stream {
    display: flex;
    white-space: nowrap;
    font-family: 'Source Code Pro', monospace;
    font-size: 0.6rem;
    color: var(--data-gray);
    opacity: 0.4;
    animation: scroll-hash 60s linear infinite;
}

@keyframes scroll-hash {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Responsive */
@media (max-width: 768px) {
    #validator-columns {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
        height: auto;
    }

    .validator-column {
        width: 80vw;
        max-width: none;
        height: 50vh;
    }

    #tx-card {
        width: 90vw;
        padding: 2rem;
    }

    .tx-row {
        flex-direction: column;
        gap: 0.25rem;
    }

    .tx-label {
        min-width: auto;
    }
}