/* freedom.compare - Retro-futuristic Freedom Observatory */
/* Colors: #b8d4e3 blue, #d4c17a gold, #c9c0b0 warm grey, #d4b8d9 lilac, #3a3530 dark brown */
/* #7a6b5a medium brown, #e4f0ea mint, #c9b06b darker gold, #e8c4c8 rose, #f5f0e8 warm cream */
/* #2c2824 darkest brown, #eae4f5 light lilac */
/* Fonts: IBM Plex Mono (primary mono), Space Grotesk (display), Inter (secondary) */

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

:root {
    --blue: #b8d4e3;
    --gold: #d4c17a;
    --warm-grey: #c9c0b0;
    --lilac: #d4b8d9;
    --dark-brown: #3a3530;
    --med-brown: #7a6b5a;
    --mint: #e4f0ea;
    --darker-gold: #c9b06b;
    --rose: #e8c4c8;
    --cream: #f5f0e8;
    --darkest: #2c2824;
    --light-lilac: #eae4f5;
    --sage-green: #b8d9c2;
    --pale-green: #c5e0b4;
    --warm-tan: #e0d8cc;
    --mono: 'IBM Plex Mono', monospace;
    --display: 'Space Grotesk', sans-serif;
    --sans: 'Inter', sans-serif;
    --space-mono: 'Space Mono', monospace;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--mono);
    background-color: var(--cream);
    color: var(--dark-brown);
    line-height: 1.7;
    font-size: clamp(0.875rem, 1.2vw, 1.05rem);
    overflow-x: hidden;
    position: relative;
}

/* CRT Overlay */
.crt-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.015) 2px,
        rgba(0, 0, 0, 0.015) 4px
    );
}

/* Circuit Trace SVG Overlay */
.circuit-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.15;
}

/* ========== HEADER ========== */
#system-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 2rem;
    background: var(--darkest);
    border-bottom: 2px solid var(--blue);
    box-shadow: 0 2px 20px rgba(184, 212, 227, 0.15);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.system-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-text {
    font-family: var(--mono);
    font-weight: 600;
    font-size: 1rem;
    color: var(--blue);
    letter-spacing: 0.08em;
}

.system-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--med-brown);
}

.status-indicator.active {
    background: var(--mint);
    box-shadow: 0 0 8px rgba(228, 240, 234, 0.6);
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 1; box-shadow: 0 0 8px rgba(228, 240, 234, 0.6); }
    50% { opacity: 0.6; box-shadow: 0 0 4px rgba(228, 240, 234, 0.3); }
}

.status-label {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--mint);
    text-transform: uppercase;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.header-readout {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.readout-label {
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--med-brown);
    text-transform: uppercase;
}

.readout-value {
    font-family: var(--mono);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gold);
}

.signal-value {
    color: var(--mint);
}

.header-nav {
    display: flex;
    gap: 1.25rem;
}

.nav-link {
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--warm-grey);
    text-decoration: none;
    text-transform: uppercase;
    padding: 0.25rem 0;
    border-bottom: 1px solid transparent;
    transition: color 0.3s, border-color 0.3s;
}

.nav-link:hover {
    color: var(--blue);
    border-bottom-color: var(--blue);
}

/* ========== HERO ========== */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4rem;
    padding: 8rem 4rem 4rem;
    position: relative;
}

.hero-content {
    max-width: 560px;
    position: relative;
    z-index: 2;
}

.terminal-frame {
    background: var(--darkest);
    border: 1px solid var(--med-brown);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 2.5rem;
    box-shadow: 0 4px 30px rgba(44, 40, 36, 0.3);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.75rem;
    background: rgba(122, 107, 90, 0.3);
    border-bottom: 1px solid var(--med-brown);
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.terminal-dot.red { background: #e8796a; }
.terminal-dot.yellow { background: var(--gold); }
.terminal-dot.green { background: #8cc084; }

.terminal-title {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--warm-grey);
    margin-left: 0.5rem;
}

.terminal-body {
    padding: 1.25rem;
}

.type-line {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--blue);
    margin-bottom: 0.4rem;
    opacity: 0;
    transform: translateX(-10px);
    animation: typeIn 0.5s ease forwards;
}

.type-line .prompt { color: var(--gold); }

#type-line-1 { animation-delay: 0.5s; }
#type-line-2 { animation-delay: 1.2s; }
#type-line-3 { animation-delay: 1.9s; }
#type-line-4 { animation-delay: 2.6s; color: var(--mint); }

@keyframes typeIn {
    to { opacity: 1; transform: translateX(0); }
}

.hero-title {
    font-family: var(--display);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
    font-size: clamp(2rem, 4vw, 3.5rem);
    color: var(--dark-brown);
}

.title-line.accent {
    font-size: clamp(3rem, 6vw, 5rem);
    color: var(--gold);
    text-shadow: 0 0 40px rgba(212, 193, 122, 0.3);
}

.hero-subtitle {
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--med-brown);
    line-height: 1.8;
    max-width: 480px;
}

.hero-oscilloscope {
    position: relative;
    z-index: 2;
}

.hero-oscilloscope canvas {
    display: block;
    background: var(--darkest);
    border: 1px solid var(--med-brown);
    border-radius: 4px;
    box-shadow: 0 0 30px rgba(184, 212, 227, 0.1);
}

.oscilloscope-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
}

.osc-label {
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--med-brown);
    text-transform: uppercase;
}

/* ========== SECTION HEADERS ========== */
.section-block {
    padding: 6rem 4rem;
    position: relative;
    z-index: 2;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.via-marker {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--blue);
    background: var(--cream);
    position: relative;
    flex-shrink: 0;
}

.via-marker::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--blue);
    transform: translate(-50%, -50%);
}

.section-title {
    font-family: var(--display);
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--dark-brown);
    white-space: nowrap;
}

.trace-line.horizontal {
    flex: 1;
    height: 2px;
    background: var(--blue);
    opacity: 0.4;
    border-radius: 1px;
}

/* ========== DIMENSIONS GRID ========== */
.dimensions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.dimension-card {
    background: var(--cream);
    border: 1px solid var(--warm-grey);
    border-radius: 4px;
    padding: 2rem;
    position: relative;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.dimension-card::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 1.5rem;
    right: 1.5rem;
    height: 2px;
    border-radius: 1px;
}

.dimension-card[data-dimension="economic"]::before { background: var(--gold); }
.dimension-card[data-dimension="personal"]::before { background: var(--blue); }
.dimension-card[data-dimension="digital"]::before { background: var(--mint); }
.dimension-card[data-dimension="digital"] .card-title { color: #b8d9c2; }
.dimension-card[data-dimension="political"]::before { background: var(--lilac); }

.dimension-card:hover {
    border-color: var(--blue);
    box-shadow: 0 4px 20px rgba(184, 212, 227, 0.15);
}

.card-trace-port {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: 1.5px solid var(--blue);
    background: var(--cream);
    position: absolute;
}

.card-trace-port.top { top: -4px; left: 50%; transform: translateX(-50%); }
.card-trace-port.bottom { bottom: -4px; left: 50%; transform: translateX(-50%); }

.card-icon {
    margin-bottom: 1rem;
    opacity: 0.8;
}

.card-title {
    font-family: var(--display);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    color: var(--dark-brown);
}

.card-register {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.register-label {
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--med-brown);
    text-transform: uppercase;
}

.register-value {
    font-family: var(--mono);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gold);
}

.card-meter {
    margin-bottom: 1rem;
}

.meter-track {
    height: 4px;
    background: rgba(122, 107, 90, 0.2);
    border-radius: 2px;
    overflow: hidden;
}

.meter-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 1.5s ease-out;
}

.meter-fill.economic { background: var(--gold); }
.meter-fill.personal { background: var(--blue); }
.meter-fill.digital { background: var(--mint); }
.meter-fill.political { background: var(--lilac); }

.card-desc {
    font-size: 0.8rem;
    color: var(--med-brown);
    line-height: 1.7;
}

/* ========== OSCILLOSCOPE ========== */
#oscilloscope {
    background: linear-gradient(180deg, var(--cream) 0%, rgba(234, 228, 245, 0.3) 100%);
}

.oscilloscope-panel {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.osc-frame {
    flex: 1;
    background: var(--darkest);
    border: 2px solid var(--med-brown);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 40px rgba(44, 40, 36, 0.4);
}

.osc-screen {
    padding: 1rem;
    position: relative;
}

.osc-screen canvas {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 2px;
}

.osc-controls {
    display: flex;
    gap: 2rem;
    padding: 1rem 1.5rem;
    background: rgba(122, 107, 90, 0.15);
    border-top: 1px solid var(--med-brown);
    align-items: center;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.control-label {
    font-size: 0.55rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--warm-grey);
    text-transform: uppercase;
}

.control-buttons {
    display: flex;
    gap: 0.25rem;
}

.ctrl-btn {
    font-family: var(--mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 0.3rem 0.6rem;
    background: transparent;
    border: 1px solid var(--med-brown);
    color: var(--warm-grey);
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.2s;
}

.ctrl-btn:hover {
    border-color: var(--blue);
    color: var(--blue);
}

.ctrl-btn.active {
    background: var(--blue);
    color: var(--darkest);
    border-color: var(--blue);
}

.control-knob {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--med-brown);
    background: var(--darkest);
    position: relative;
    cursor: pointer;
}

.knob-indicator {
    position: absolute;
    top: 4px;
    left: 50%;
    width: 2px;
    height: 8px;
    background: var(--gold);
    border-radius: 1px;
    transform: translateX(-50%);
    transform-origin: center bottom;
}

.osc-readouts {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 140px;
}

.osc-readout {
    background: var(--darkest);
    border: 1px solid var(--med-brown);
    border-radius: 4px;
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.osc-readout .readout-label {
    font-size: 0.55rem;
    color: var(--warm-grey);
}

.osc-readout .readout-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--blue);
}

.trend-up {
    color: var(--mint) !important;
}

/* ========== REGISTERS ========== */
#registers {
    background: var(--cream);
}

.register-bank {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.register-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

.register-cell {
    background: var(--darkest);
    border: 1px solid var(--med-brown);
    border-radius: 3px;
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    transition: border-color 0.3s;
}

.register-cell:hover {
    border-color: var(--blue);
}

.reg-addr {
    font-family: var(--mono);
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--med-brown);
    letter-spacing: 0.1em;
}

.reg-name {
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--blue);
    letter-spacing: 0.08em;
}

.reg-val {
    font-family: var(--mono);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gold);
}

/* ========== COMPARISON ========== */
#comparison {
    background: linear-gradient(180deg, var(--cream) 0%, rgba(232, 196, 200, 0.15) 100%);
}

.comparison-panel {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
}

.comparison-table-wrap {
    flex: 1;
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--mono);
    font-size: 0.8rem;
}

.comparison-table th {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--med-brown);
    text-transform: uppercase;
    padding: 0.75rem 1rem;
    text-align: right;
    border-bottom: 2px solid var(--blue);
}

.comparison-table th.region-header {
    text-align: left;
}

.comparison-table td {
    padding: 0.6rem 1rem;
    text-align: right;
    border-bottom: 1px solid rgba(201, 192, 176, 0.4);
}

.region-name {
    text-align: left !important;
    font-weight: 600;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
    color: var(--dark-brown);
}

.table-val {
    font-weight: 600;
    color: var(--dark-brown);
}

.table-val.composite {
    color: var(--gold);
    font-size: 0.9rem;
}

.comparison-table tbody tr {
    transition: background 0.2s;
}

.comparison-table tbody tr:hover {
    background: rgba(184, 212, 227, 0.08);
}

.comparison-radar {
    min-width: 320px;
}

.comparison-radar canvas {
    display: block;
    background: var(--darkest);
    border: 1px solid var(--med-brown);
    border-radius: 4px;
}

.radar-legend {
    display: flex;
    gap: 1rem;
    margin-top: 0.75rem;
    justify-content: center;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--med-brown);
}

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

/* ========== TIMELINE ========== */
#timeline {
    background: var(--cream);
}

.timeline-panel {
    position: relative;
}

.timeline-track {
    position: relative;
    padding-left: 3rem;
}

.timeline-track::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--blue);
    opacity: 0.4;
    border-radius: 1px;
}

.timeline-event {
    position: relative;
    padding: 1.5rem 0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s, transform 0.6s;
}

.timeline-event.visible {
    opacity: 1;
    transform: translateY(0);
}

.event-marker {
    position: absolute;
    left: -2.35rem;
    top: 1.75rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--blue);
    background: var(--cream);
}

.event-marker::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--blue);
    transform: translate(-50%, -50%);
}

.event-marker.pulse {
    border-color: var(--gold);
    animation: marker-pulse 2s ease-in-out infinite;
}

.event-marker.pulse::after {
    background: var(--gold);
}

@keyframes marker-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(212, 193, 122, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(212, 193, 122, 0); }
}

.event-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1rem 1.5rem;
    background: rgba(44, 40, 36, 0.03);
    border: 1px solid rgba(201, 192, 176, 0.3);
    border-radius: 4px;
    border-left: 3px solid var(--blue);
    transition: border-left-color 0.3s, background 0.3s;
}

.event-content:hover {
    background: rgba(184, 212, 227, 0.05);
    border-left-color: var(--gold);
}

.event-year {
    font-family: var(--display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gold);
}

.event-title {
    font-family: var(--display);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--dark-brown);
    letter-spacing: 0.04em;
}

.event-desc {
    font-size: 0.8rem;
    color: var(--med-brown);
    line-height: 1.7;
}

/* ========== FOOTER ========== */
#system-footer {
    background: var(--darkest);
    border-top: 2px solid var(--blue);
    padding: 0;
    position: relative;
    z-index: 2;
}

.footer-traces {
    height: 60px;
    overflow: hidden;
    opacity: 0.5;
}

.footer-trace-svg {
    width: 100%;
    height: 100%;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    padding: 1.5rem 4rem;
    border-top: 1px solid rgba(122, 107, 90, 0.3);
}

.footer-block {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.footer-label {
    font-size: 0.55rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--med-brown);
    text-transform: uppercase;
}

.footer-value {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--warm-grey);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.footer-copyright {
    text-align: center;
    padding: 1rem 4rem;
    border-top: 1px solid rgba(122, 107, 90, 0.2);
}

.footer-copyright span {
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--med-brown);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    #hero {
        flex-direction: column;
        padding: 7rem 2rem 3rem;
        gap: 2rem;
    }
    .hero-oscilloscope canvas {
        width: 100%;
        max-width: 600px;
    }
    .oscilloscope-panel {
        flex-direction: column;
    }
    .osc-readouts {
        flex-direction: row;
        min-width: auto;
    }
    .comparison-panel {
        flex-direction: column;
    }
    .comparison-radar {
        min-width: auto;
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .section-block {
        padding: 4rem 1.5rem;
    }
    #system-header {
        padding: 0.5rem 1rem;
    }
    .header-right {
        gap: 1rem;
    }
    .header-nav {
        display: none;
    }
    .register-row {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-content {
        flex-wrap: wrap;
        gap: 1rem;
        padding: 1.5rem 1.5rem;
    }
    .dimensions-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== ANIMATIONS ========== */
.dimension-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease, border-color 0.3s, box-shadow 0.3s;
}

.dimension-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.register-cell {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.4s ease, transform 0.4s ease, border-color 0.3s;
}

.register-cell.visible {
    opacity: 1;
    transform: scale(1);
}

.comparison-table tbody tr {
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity 0.4s ease, transform 0.4s ease, background 0.2s;
}

.comparison-table tbody tr.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Additional design palette colors */
.timeline-track::before { background: linear-gradient(180deg, #b8d9c2, var(--blue)); }
.osc-frame { border-color: #e0d8cc; }
.register-bank { border-top: 2px solid #c5e0b4; padding-top: 1rem; }

/* Space Mono for structural labels per design */
.section-title { font-family: var(--space-mono); }
.reg-name { font-family: var(--space-mono); }
.control-label { font-family: var(--space-mono); }