/* ============================================================
   completengine.com -- Concurrent Simulation HUD
   Colors: #0B0E14 #1E2A3A #00BCD4 #FFB300 #4CAF50 #FF5252
           #C8D0DC #5C6B7A #7C4DFF #141B27
   Fonts: Share Tech Mono, Exo 2, IBM Plex Mono
   ============================================================ */

:root {
    --void: #0B0E14;
    --grid: #1E2A3A;
    --cyan: #00BCD4;
    --amber: #FFB300;
    --green: #4CAF50;
    --red: #FF5252;
    --silver: #C8D0DC;
    --label: #5C6B7A;
    --violet: #7C4DFF;
    --panel: #141B27;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    background: var(--void);
    color: var(--silver);
    font-family: 'Exo 2', sans-serif;
    font-size: 18px;
    font-weight: 300;
    line-height: 1.7;
    overflow-x: hidden;
}

/* ===== Grid Substrate ===== */
.grid-substrate {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image:
        repeating-linear-gradient(rgba(30,42,58,0.15) 0px, rgba(30,42,58,0.15) 1px, transparent 1px, transparent 64px),
        repeating-linear-gradient(90deg, rgba(30,42,58,0.15) 0px, rgba(30,42,58,0.15) 1px, transparent 1px, transparent 64px);
    z-index: 0;
    pointer-events: none;
    mask-image: radial-gradient(ellipse at center, black 50%, transparent 90%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 50%, transparent 90%);
}

/* ===== Temporal Ruler ===== */
#temporal-ruler {
    position: sticky;
    top: 0;
    height: 48px;
    background: var(--void);
    border-bottom: 1px solid rgba(0, 188, 212, 0.3);
    z-index: 100;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.ruler-ticks {
    display: flex;
    align-items: flex-end;
    height: 100%;
    padding-left: 120px;
    gap: 24px;
    flex: 1;
}

.ruler-tick {
    width: 1px;
    background: var(--label);
    flex-shrink: 0;
}

.ruler-tick-small { height: 8px; }
.ruler-tick-medium { height: 12px; }
.ruler-tick-large { height: 16px; }

.tick-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px;
    color: var(--label);
    position: absolute;
    bottom: 2px;
    left: -12px;
    letter-spacing: 0.04em;
}

.playhead {
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 100%;
    background: var(--amber);
    z-index: 2;
    transition: left 0.1s linear;
}

.thread-label {
    position: absolute;
    top: 50%;
    left: 16px;
    transform: translateY(-50%);
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--label);
}

/* ===== Section Labels ===== */
.section-label {
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--label);
    padding: 24px 32px 16px;
}

/* ===== Scheduler Hero ===== */
#scheduler-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1;
    border-bottom: 2px solid rgba(0, 188, 212, 0.3);
}

.hero-split {
    display: grid;
    grid-template-columns: 40% 60%;
    width: 100%;
    min-height: 80vh;
}

.hero-left {
    padding: 80px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.display-title {
    font-family: 'Share Tech Mono', monospace;
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--silver);
    margin-bottom: 16px;
    min-height: 1.2em;
}

.hero-tagline {
    font-family: 'Exo 2', sans-serif;
    font-weight: 300;
    font-size: 18px;
    color: var(--label);
    margin-bottom: 40px;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.hero-tagline.visible { opacity: 1; }

.thread-lines-hero {
    width: 100%;
    max-width: 400px;
}

.thread-svg { width: 100%; height: auto; }

.thread-path {
    stroke-dasharray: 500;
    stroke-dashoffset: 500;
    transition: stroke-dashoffset 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.thread-path.drawn { stroke-dashoffset: 0; }

.sync-diamond {
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.2s ease;
}

.sync-diamond.visible { opacity: 1; }

.hero-right {
    padding: 80px 24px;
    overflow: hidden;
    position: relative;
}

.event-feed {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    line-height: 2;
    letter-spacing: 0.04em;
    animation: feedScroll 20s linear infinite;
}

@keyframes feedScroll {
    0% { transform: translateY(0); }
    100% { transform: translateY(-50%); }
}

.feed-line {
    white-space: nowrap;
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.feed-line.visible {
    opacity: 1;
    transform: translateX(0);
}

.ts { color: var(--label); }
.thread-id { color: var(--violet); }
.ev-type { font-weight: 400; }
.ev-spawn { color: var(--cyan); }
.ev-dispatch { color: var(--amber); }
.ev-sync { color: var(--violet); }
.ev-resolve { color: var(--green); }
.ev-error { color: var(--red); }

/* ===== Event Queue ===== */
#event-queue {
    position: relative;
    z-index: 1;
    padding: 60px 0;
    border-bottom: 2px solid rgba(0, 188, 212, 0.3);
}

.queue-track-container {
    overflow-x: auto;
    padding: 32px 24px;
    scrollbar-width: thin;
    scrollbar-color: var(--label) var(--void);
}

.queue-track {
    display: flex;
    gap: 24px;
    min-width: max-content;
    padding: 24px 0;
    position: relative;
}

.queue-line {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--cyan);
    opacity: 0.3;
}

.event-card {
    width: 280px;
    background: var(--panel);
    padding: 24px;
    position: relative;
    flex-shrink: 0;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border-radius: 2px;
}

.event-card.visible {
    opacity: 1;
    transform: scale(1);
}

.event-card:hover {
    z-index: 2;
}

.event-card.dimmed {
    opacity: 0.3;
}

.card-thread-border {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
}

/* Corner brackets */
.card-bracket {
    position: absolute;
    width: 16px;
    height: 16px;
    border-color: rgba(0, 188, 212, 0.4);
    border-style: solid;
    border-width: 0;
}

.card-bracket.tl { top: 0; left: 0; border-top-width: 2px; border-left-width: 2px; }
.card-bracket.tr { top: 0; right: 0; border-top-width: 2px; border-right-width: 2px; }
.card-bracket.bl { bottom: 0; left: 0; border-bottom-width: 2px; border-left-width: 2px; }
.card-bracket.br { bottom: 0; right: 0; border-bottom-width: 2px; border-right-width: 2px; }

.card-label {
    font-family: 'Share Tech Mono', monospace;
    font-size: 16px;
    color: var(--cyan);
    letter-spacing: 0.06em;
    display: block;
    margin-bottom: 8px;
}

.card-meta {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    color: var(--label);
    letter-spacing: 0.04em;
    display: block;
    margin-bottom: 12px;
}

.card-desc {
    font-family: 'Exo 2', sans-serif;
    font-size: 14px;
    font-weight: 300;
    color: var(--silver);
    line-height: 1.6;
}

/* ===== Dispatcher ===== */
#dispatcher {
    position: relative;
    z-index: 1;
    padding: 60px 24px;
    border-bottom: 2px solid rgba(0, 188, 212, 0.3);
    overflow: hidden;
}

.dispatch-grid-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.15;
}

.dispatch-grid-cell {
    width: 6px;
    height: 6px;
    display: inline-block;
    margin: 2px;
    transition: background 0.3s ease;
}

.dispatch-blocks {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 48px;
    position: relative;
    z-index: 1;
}

.dispatch-block {
    background: var(--panel);
    padding: 32px;
    border-left: 2px solid var(--cyan);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.dispatch-block.snapped {
    transform: rotate(0deg) !important;
}

.block-title {
    font-family: 'Share Tech Mono', monospace;
    font-size: 20px;
    color: var(--cyan);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.block-text {
    font-family: 'Exo 2', sans-serif;
    font-size: 16px;
    font-weight: 300;
    color: var(--silver);
    line-height: 1.65;
}

/* ===== Resolution ===== */
#resolution {
    position: relative;
    z-index: 1;
    padding: 100px 24px;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.convergence-lines {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
    opacity: 0.3;
    pointer-events: none;
}

.convergence-svg { width: 100%; height: 100%; }

.resolution-content {
    position: relative;
    z-index: 1;
    max-width: 480px;
    text-align: center;
    margin-top: auto;
    margin-bottom: auto;
}

.sim-complete {
    font-family: 'Share Tech Mono', monospace;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--green);
    margin-bottom: 48px;
    opacity: 0;
    transition: opacity 1.5s ease;
}

.sim-complete.visible { opacity: 1; }

.stats-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.stat-item {
    text-align: center;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.stat-item.visible { opacity: 1; }

.stat-label {
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--label);
    display: block;
    margin-bottom: 8px;
}

.stat-value {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 28px;
    color: var(--cyan);
    letter-spacing: 0.04em;
}

.stat-green { color: var(--green); }

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

    .hero-left { padding: 60px 20px 20px; }
    .hero-right { padding: 20px; }

    .queue-track { flex-direction: column; min-width: 0; }
    .event-card { width: 100%; }

    .stats-panel { grid-template-columns: 1fr; gap: 24px; }

    #temporal-ruler { display: none; }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    .event-feed { animation: none; }
    .thread-path { stroke-dashoffset: 0; transition: none; }
    .dispatch-block { transform: none !important; transition: none; }
    .event-card { opacity: 1; transform: none; transition: none; }
    .sim-complete { opacity: 1; transition: none; }
    .stat-item { opacity: 1; transition: none; }
    .feed-line { opacity: 1; transform: none; transition: none; }
}