/* concengine.com - Brutalist Neon Grids Agency */
/* Palette: #0a0a0a, #39ff14, #141414, #e0e0e0, #ffab00, #ff1744, #333333 */
/* Fonts: Barlow Condensed 700, Barlow 400, Fira Code 400 */

:root {
    --black: #0a0a0a;
    --neon: #39ff14;
    --panel: #141414;
    --text: #e0e0e0;
    --amber: #ffab00;
    --red: #ff1744;
    --dim: #333333;
    --neon-glow: rgba(57, 255, 20, 0.3);
    --neon-faint: rgba(57, 255, 20, 0.06);
    --neon-trace: rgba(57, 255, 20, 0.03);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--black);
    color: var(--text);
    font-family: 'Barlow', sans-serif;
    font-weight: 400;
    line-height: 1.6;
    overflow-x: hidden;
}

/* =============================================
   NEON GRID OVERLAY
   ============================================= */
#grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    background:
        repeating-linear-gradient(0deg, var(--neon-trace) 0px, transparent 1px, transparent 25px),
        repeating-linear-gradient(90deg, var(--neon-trace) 0px, transparent 1px, transparent 25px),
        repeating-linear-gradient(0deg, var(--neon-faint) 0px, transparent 1px, transparent 100px),
        repeating-linear-gradient(90deg, var(--neon-faint) 0px, transparent 1px, transparent 100px);
    opacity: 0;
    transition: opacity 1.5s ease;
}

#grid-overlay.active {
    opacity: 1;
}

/* =============================================
   SCAN LINE
   ============================================= */
#scan-line {
    position: fixed;
    top: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, var(--neon) 20%, var(--neon) 80%, transparent 100%);
    box-shadow: 0 0 16px var(--neon), 0 0 40px var(--neon-glow);
    z-index: 1000;
    opacity: 0.5;
    pointer-events: none;
    animation: scanSweep 8s linear infinite;
    animation-delay: 2s;
}

@keyframes scanSweep {
    0% { top: -4px; opacity: 0.5; }
    5% { opacity: 0.5; }
    95% { opacity: 0.3; }
    100% { top: 100vh; opacity: 0; }
}

/* =============================================
   FIXED HEADER
   ============================================= */
#site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    background: rgba(10, 10, 10, 0.95);
    border-bottom: 1px solid var(--dim);
    z-index: 500;
    backdrop-filter: blur(4px);
}

.header-left,
.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-brand {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    color: var(--neon);
    text-transform: uppercase;
}

.header-version {
    font-family: 'Fira Code', monospace;
    font-size: 0.6rem;
    color: var(--dim);
    letter-spacing: 0.05em;
}

.header-status {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.header-status-dot {
    width: 6px;
    height: 6px;
    background: var(--neon);
    box-shadow: 0 0 6px var(--neon);
}

.header-status-label {
    font-family: 'Fira Code', monospace;
    font-size: 0.6rem;
    color: var(--neon);
    letter-spacing: 0.1em;
    opacity: 0.7;
}

.live-badge {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.15rem 0.5rem;
    border: 1px solid var(--red);
}

.live-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--red);
    animation: livePulse 1.5s ease-in-out infinite;
}

@keyframes livePulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--red); }
    50% { opacity: 0.3; box-shadow: none; }
}

.live-text {
    font-family: 'Fira Code', monospace;
    font-size: 0.6rem;
    color: var(--red);
    letter-spacing: 0.15em;
    font-weight: 400;
}

/* =============================================
   SECTION: BOOT (HERO)
   ============================================= */
.section-boot {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem 2rem;
    overflow: hidden;
}

.boot-grid-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0;
    transition: opacity 2s ease;
}

.boot-grid-lines.active {
    opacity: 1;
}

.boot-content {
    position: relative;
    text-align: center;
    z-index: 2;
}

.boot-brand-wrapper {
    margin-bottom: 1.5rem;
}

.boot-brand {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: clamp(4.5rem, 14vw, 10rem);
    letter-spacing: 0.08em;
    color: var(--neon);
    text-shadow: 0 0 60px var(--neon-glow), 0 0 120px rgba(57, 255, 20, 0.15);
    line-height: 0.9;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(20px) scale(0.97);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.boot-brand.active {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.boot-underline {
    height: 3px;
    background: var(--neon);
    box-shadow: 0 0 10px var(--neon);
    margin: 0.5rem auto 0;
    width: 0;
    transition: width 1s ease 0.5s;
}

.boot-underline.active {
    width: 80%;
}

.boot-subtitle {
    font-family: 'Fira Code', monospace;
    font-size: clamp(0.75rem, 1.5vw, 1rem);
    color: var(--text);
    opacity: 0;
    transition: opacity 0.8s ease 0.8s;
    letter-spacing: 0.05em;
}

.boot-subtitle.active {
    opacity: 0.6;
}

.blink-cursor {
    animation: cursorBlink 1s step-end infinite;
    color: var(--neon);
}

@keyframes cursorBlink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* Boot Indicators */
.boot-indicators {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 3rem;
    opacity: 0;
    transition: opacity 0.6s ease 1.2s;
}

.boot-indicators.active {
    opacity: 1;
}

.boot-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.indicator-dot {
    width: 8px;
    height: 8px;
    background: var(--dim);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.indicator-dot--booting {
    animation: indicatorFlicker 0.3s step-end infinite;
}

@keyframes indicatorFlicker {
    0% { background: var(--dim); }
    25% { background: var(--amber); }
    50% { background: var(--neon); }
    75% { background: var(--dim); }
}

.indicator-dot.booted-active {
    background: var(--neon);
    box-shadow: 0 0 6px var(--neon);
    animation: none;
}

.indicator-dot.booted-warning {
    background: var(--amber);
    box-shadow: 0 0 6px var(--amber);
    animation: none;
}

.indicator-label {
    font-family: 'Fira Code', monospace;
    font-size: 0.6rem;
    color: rgba(224, 224, 224, 0.5);
    letter-spacing: 0.1em;
}

/* Boot Counters */
.boot-counters {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 3rem;
    opacity: 0;
    transition: opacity 0.6s ease 1.8s;
}

.boot-counters.active {
    opacity: 1;
}

.counter-block {
    text-align: center;
}

.counter-value {
    font-family: 'Fira Code', monospace;
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    color: var(--neon);
    display: block;
    text-shadow: 0 0 10px var(--neon-glow);
}

.counter-label {
    font-family: 'Fira Code', monospace;
    font-size: 0.55rem;
    color: rgba(224, 224, 224, 0.35);
    letter-spacing: 0.2em;
    display: block;
    margin-top: 0.3rem;
}

/* Scroll Hint */
.boot-scroll-hint {
    position: absolute;
    bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    transition: opacity 0.6s ease 2.5s;
}

.boot-scroll-hint.active {
    opacity: 0.3;
}

.scroll-arrow {
    font-size: 1.2rem;
    color: var(--neon);
    animation: scrollBounce 2s ease infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}

.scroll-text {
    font-family: 'Fira Code', monospace;
    font-size: 0.55rem;
    color: var(--dim);
    letter-spacing: 0.15em;
}

/* =============================================
   SECTION TITLES
   ============================================= */
.section-title {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: clamp(1.8rem, 4vw, 3rem);
    letter-spacing: 0.15em;
    color: var(--text);
    text-transform: uppercase;
}

.section-rule {
    height: 2px;
    background: var(--neon);
    box-shadow: 0 0 8px var(--neon-glow);
    margin-top: 0.75rem;
    width: 60px;
}

/* =============================================
   SECTION: ARCHITECTURE
   ============================================= */
.section-architecture {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 6rem 1.5rem 4rem;
}

.arch-header {
    margin-bottom: 3rem;
}

/* Module Grid */
.module-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
}

.module {
    border: 2px solid var(--neon);
    background: var(--panel);
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.module::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(57, 255, 20, 0.03) 0%, transparent 40%);
    pointer-events: none;
}

.module--wide {
    grid-column: span 2;
}

.module-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(57, 255, 20, 0.15);
}

.module-label {
    font-family: 'Fira Code', monospace;
    font-size: 0.7rem;
    color: var(--neon);
    letter-spacing: 0.12em;
}

.status-dot {
    width: 8px;
    height: 8px;
    flex-shrink: 0;
}

.status-dot--green {
    background: var(--neon);
    box-shadow: 0 0 6px var(--neon);
}

.status-dot--amber {
    background: var(--amber);
    box-shadow: 0 0 6px var(--amber);
}

.status-dot--red {
    background: var(--red);
    box-shadow: 0 0 6px var(--red);
    animation: livePulse 1s ease-in-out infinite;
}

.module-body {
    font-size: 0.82rem;
    color: rgba(224, 224, 224, 0.65);
    margin-bottom: 0.75rem;
    line-height: 1.65;
}

.module-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.stat {
    font-family: 'Fira Code', monospace;
    font-size: 0.6rem;
    color: rgba(224, 224, 224, 0.35);
    letter-spacing: 0.05em;
}

.stat strong {
    color: rgba(224, 224, 224, 0.6);
    font-weight: 400;
}

.stat-red {
    color: var(--red) !important;
}

/* Flow Arrows */
.flow-row {
    grid-column: 1 / -1;
    padding: 0.4rem 0;
    overflow: hidden;
}

.flow-svg {
    display: block;
    width: 100%;
    height: 30px;
}

.flow-dash-line {
    animation: dashAnimate 1.2s linear infinite;
}

@keyframes dashAnimate {
    to { stroke-dashoffset: -24; }
}

.flow-arrowhead {
    animation: arrowPulse 2s ease infinite;
}

@keyframes arrowPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Fade-in for modules */
.fade-module {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-module.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =============================================
   SECTION: PERFORMANCE
   ============================================= */
.section-performance {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 6rem 1.5rem 4rem;
}

.perf-header {
    margin-bottom: 3rem;
}

.perf-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    margin-bottom: 3rem;
}

.perf-card {
    border: 2px solid var(--neon);
    background: var(--panel);
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
}

.perf-card--main {
    grid-column: span 2;
    padding: 3.5rem 2rem;
}

.perf-card--main .perf-card-value {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    text-shadow: 0 0 30px var(--neon-glow), 0 0 60px rgba(57, 255, 20, 0.15);
}

.perf-card-label {
    font-family: 'Fira Code', monospace;
    font-size: 0.65rem;
    color: rgba(224, 224, 224, 0.35);
    letter-spacing: 0.25em;
    display: block;
    margin-bottom: 0.75rem;
}

.perf-card-value {
    font-family: 'Fira Code', monospace;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--neon);
    display: block;
    text-shadow: 0 0 15px var(--neon-glow);
}

.perf-card-unit {
    font-family: 'Fira Code', monospace;
    font-size: 0.6rem;
    color: rgba(224, 224, 224, 0.25);
    display: block;
    margin-top: 0.5rem;
    letter-spacing: 0.05em;
}

/* Performance Bars */
.perf-bar-section {
    border: 2px solid var(--dim);
    background: var(--panel);
    padding: 2rem;
}

.perf-bar-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.2rem;
}

.perf-bar-row:last-child {
    margin-bottom: 0;
}

.perf-bar-label {
    font-family: 'Fira Code', monospace;
    font-size: 0.6rem;
    color: rgba(224, 224, 224, 0.4);
    letter-spacing: 0.1em;
    width: 160px;
    flex-shrink: 0;
}

.perf-bar-track {
    flex: 1;
    height: 4px;
    background: var(--dim);
    position: relative;
    overflow: hidden;
}

.perf-bar-fill {
    height: 100%;
    background: var(--neon);
    box-shadow: 0 0 8px var(--neon-glow);
    width: 0;
    transition: width 1.5s ease;
}

.perf-bar-fill--amber {
    background: var(--amber);
    box-shadow: 0 0 8px rgba(255, 171, 0, 0.3);
}

.perf-bar-pct {
    font-family: 'Fira Code', monospace;
    font-size: 0.65rem;
    color: rgba(224, 224, 224, 0.5);
    width: 40px;
    text-align: right;
    flex-shrink: 0;
}

/* =============================================
   SECTION: STEADY STATE
   ============================================= */
.section-steady {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 1.5rem 6rem;
}

/* Terminal */
.steady-terminal {
    border: 2px solid var(--dim);
    background: var(--panel);
    overflow: hidden;
    margin-bottom: 4rem;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: rgba(51, 51, 51, 0.3);
    border-bottom: 1px solid var(--dim);
}

.terminal-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.terminal-dot--red { background: var(--red); }
.terminal-dot--amber { background: var(--amber); }
.terminal-dot--green { background: var(--neon); }

.terminal-title {
    font-family: 'Fira Code', monospace;
    font-size: 0.6rem;
    color: var(--dim);
    letter-spacing: 0.08em;
    margin-left: 0.5rem;
}

.terminal-body {
    padding: 1.2rem;
}

.terminal-line {
    font-family: 'Fira Code', monospace;
    font-size: 0.72rem;
    color: rgba(224, 224, 224, 0.55);
    line-height: 1.9;
    white-space: nowrap;
    overflow: hidden;
}

.terminal-line--accent {
    color: var(--neon);
}

.t-time {
    color: var(--dim);
}

.t-tag {
    color: var(--neon);
    font-weight: 400;
}

.t-tag--warn {
    color: var(--amber);
}

.t-tag--ok {
    color: var(--neon);
}

/* Footer */
.steady-footer {
    text-align: center;
    padding-top: 2rem;
}

.footer-brand {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 0.3em;
    color: var(--neon);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.footer-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.footer-item {
    font-family: 'Fira Code', monospace;
    font-size: 0.6rem;
    color: var(--dim);
    letter-spacing: 0.08em;
}

.footer-sep {
    color: var(--dim);
    font-size: 0.6rem;
}

.footer-line {
    height: 1px;
    background: var(--dim);
    margin-top: 2rem;
    width: 60px;
    margin-left: auto;
    margin-right: auto;
}

/* =============================================
   GRID PULSE EFFECT
   ============================================= */
#grid-overlay.pulse {
    animation: gridPulse 0.8s ease;
}

@keyframes gridPulse {
    0% { opacity: 1; }
    50% {
        background:
            repeating-linear-gradient(0deg, rgba(57, 255, 20, 0.08) 0px, transparent 1px, transparent 25px),
            repeating-linear-gradient(90deg, rgba(57, 255, 20, 0.08) 0px, transparent 1px, transparent 25px),
            repeating-linear-gradient(0deg, rgba(57, 255, 20, 0.14) 0px, transparent 1px, transparent 100px),
            repeating-linear-gradient(90deg, rgba(57, 255, 20, 0.14) 0px, transparent 1px, transparent 100px);
    }
    100% { opacity: 1; }
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 900px) {
    .module-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .module--wide {
        grid-column: span 2;
    }

    .perf-grid {
        grid-template-columns: 1fr;
    }

    .perf-card--main {
        grid-column: span 1;
    }

    .perf-bar-label {
        width: 110px;
        font-size: 0.55rem;
    }
}

@media (max-width: 600px) {
    .module-grid {
        grid-template-columns: 1fr;
    }

    .module--wide {
        grid-column: span 1;
    }

    .boot-counters {
        flex-direction: column;
        gap: 1.5rem;
    }

    .boot-indicators {
        gap: 1rem;
    }

    #site-header {
        padding: 0 0.75rem;
    }

    .header-status {
        display: none;
    }

    .perf-bar-row {
        flex-wrap: wrap;
    }

    .perf-bar-label {
        width: 100%;
    }

    .terminal-line {
        font-size: 0.6rem;
        white-space: normal;
    }
}