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

:root {
    --primary-burn: #c4622a;
    --secondary-glow: #e8943a;
    --tertiary-wash: #a0573b;
    --bg-deep: #0e0a07;
    --bg-mid: #1c120a;
    --text-primary: #f0e6d8;
    --text-secondary: #8a7461;
    --vaporwave-accent: #9b7ec8;
    --hud-inset: 3vw;
    --morph-duration: 800ms;
    --morph-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--bg-deep);
    color: var(--text-primary);
    font-family: 'Nunito Sans', sans-serif;
    font-weight: 300;
    font-size: clamp(0.95rem, 1.2vw + 0.3rem, 1.15rem);
    line-height: 1.72;
    letter-spacing: 0.01em;
}

/* Generative Canvas */
#gen-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
}

/* Scanline Overlay */
#scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 2px,
        rgba(14, 10, 7, 0.06) 2px,
        rgba(14, 10, 7, 0.06) 4px
    );
}

/* Dot Grid */
#dot-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    background-image: radial-gradient(circle, var(--primary-burn) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.05;
}

/* HUD Frame */
#hud-frame {
    position: fixed;
    top: var(--hud-inset);
    left: var(--hud-inset);
    right: var(--hud-inset);
    bottom: var(--hud-inset);
    border: 1px solid var(--primary-burn);
    z-index: 10;
    pointer-events: none;
    opacity: 0.7;
}

.hud-corner {
    position: absolute;
    width: 20px;
    height: 20px;
}

.hud-tl {
    top: -1px;
    left: -1px;
    border-top: 3px solid var(--primary-burn);
    border-left: 3px solid var(--primary-burn);
}

.hud-tr {
    top: -1px;
    right: -1px;
    border-top: 3px solid var(--primary-burn);
    border-right: 3px solid var(--primary-burn);
}

.hud-bl {
    bottom: -1px;
    left: -1px;
    border-bottom: 3px solid var(--primary-burn);
    border-left: 3px solid var(--primary-burn);
}

.hud-br {
    bottom: -1px;
    right: -1px;
    border-bottom: 3px solid var(--primary-burn);
    border-right: 3px solid var(--primary-burn);
}

/* HUD Ticks */
.hud-tick {
    position: absolute;
}

.hud-tick-top, .hud-tick-bottom {
    left: 50%;
    width: 1px;
    height: 10px;
    background: var(--primary-burn);
    opacity: 0.5;
}

.hud-tick-top { top: 0; }
.hud-tick-bottom { bottom: 0; }

.hud-tick-left, .hud-tick-right {
    top: 50%;
    width: 10px;
    height: 1px;
    background: var(--primary-burn);
    opacity: 0.5;
}

.hud-tick-left { left: 0; }
.hud-tick-right { right: 0; }

/* Timestamp */
#hud-timestamp {
    position: fixed;
    top: calc(var(--hud-inset) + 12px);
    right: calc(var(--hud-inset) + 16px);
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(0.7rem, 0.9vw + 0.2rem, 0.9rem);
    letter-spacing: 0.08em;
    font-variant-numeric: tabular-nums;
    color: var(--secondary-glow);
    z-index: 20;
    opacity: 0.8;
}

/* Compass Rose */
#compass-rose {
    position: fixed;
    bottom: calc(var(--hud-inset) + 16px);
    left: calc(var(--hud-inset) + 16px);
    z-index: 20;
    opacity: 0.6;
    transition: transform 0.3s ease;
}

/* Navigation */
#hud-nav {
    position: fixed;
    top: 50%;
    left: calc(var(--hud-inset) + 20px);
    transform: translateY(-50%);
    z-index: 20;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    opacity: 0.4;
    transition: opacity 0.3s ease;
}

.nav-item.active {
    opacity: 1;
}

.nav-item:hover {
    opacity: 0.8;
}

.nav-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-secondary);
    transition: background 0.3s ease, transform 0.3s ease;
}

.nav-item.active .nav-dot {
    background: var(--secondary-glow);
    transform: scale(1.5);
}

.nav-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.nav-item.active .nav-label {
    color: var(--secondary-glow);
}

/* Section Container */
#sections-container {
    position: fixed;
    top: var(--hud-inset);
    left: var(--hud-inset);
    right: var(--hud-inset);
    bottom: var(--hud-inset);
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

/* Data Cards */
.data-card {
    position: absolute;
    left: 22%;
    top: 50%;
    transform: translateY(-50%);
    width: 55%;
    max-width: 700px;
    padding: 48px 56px;
    background: rgba(28, 18, 10, 0.72);
    border: 1px solid var(--tertiary-wash);
    clip-path: polygon(12px 0, calc(100% - 12px) 0, 100% 12px, 100% calc(100% - 12px), calc(100% - 12px) 100%, 12px 100%, 0 calc(100% - 12px), 0 12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--morph-duration) var(--morph-ease), transform var(--morph-duration) var(--morph-ease);
    will-change: transform, opacity;
}

.data-card.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(-50%) scale(1);
}

.data-card:not(.active) {
    transform: translateY(-50%) scale(0.85);
}

/* Card Brackets */
.card-bracket {
    position: absolute;
    width: 12px;
    height: 12px;
    opacity: 0.7;
}

.card-bracket.tl {
    top: 8px;
    left: 8px;
    border-top: 1px solid var(--primary-burn);
    border-left: 1px solid var(--primary-burn);
}

.card-bracket.tr {
    top: 8px;
    right: 8px;
    border-top: 1px solid var(--primary-burn);
    border-right: 1px solid var(--primary-burn);
}

.card-bracket.bl {
    bottom: 8px;
    left: 8px;
    border-bottom: 1px solid var(--primary-burn);
    border-left: 1px solid var(--primary-burn);
}

.card-bracket.br {
    bottom: 8px;
    right: 8px;
    border-bottom: 1px solid var(--primary-burn);
    border-right: 1px solid var(--primary-burn);
}

/* Crosshair */
.crosshair {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    opacity: 0.15;
    pointer-events: none;
}

.crosshair::before,
.crosshair::after {
    content: '';
    position: absolute;
    background: var(--primary-burn);
}

.crosshair::before {
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    transform: translateY(-50%);
}

.crosshair::after {
    left: 50%;
    top: 0;
    width: 1px;
    height: 100%;
    transform: translateX(-50%);
}

/* Card Typography */
.card-heading {
    font-family: 'Varela Round', sans-serif;
    font-weight: 400;
    font-size: clamp(2.4rem, 5.5vw, 5.2rem);
    letter-spacing: 0.06em;
    line-height: 1.08;
    text-transform: uppercase;
    color: var(--primary-burn);
    margin-bottom: 24px;
}

.card-body {
    font-family: 'Nunito Sans', sans-serif;
    font-weight: 300;
    font-size: clamp(0.95rem, 1.2vw + 0.3rem, 1.15rem);
    line-height: 1.72;
    color: var(--text-primary);
    margin-bottom: 32px;
    max-width: 560px;
}

.card-data {
    font-family: 'IBM Plex Mono', monospace;
    font-size: clamp(0.7rem, 0.9vw + 0.2rem, 0.9rem);
    letter-spacing: 0.08em;
    font-variant-numeric: tabular-nums;
    color: var(--text-secondary);
}

.data-label {
    color: var(--text-secondary);
}

.data-value {
    color: var(--secondary-glow);
}

/* Section Indicator */
#section-indicator {
    position: fixed;
    bottom: calc(var(--hud-inset) + 16px);
    right: calc(var(--hud-inset) + 16px);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    font-variant-numeric: tabular-nums;
    color: var(--text-secondary);
    z-index: 20;
}

.indicator-current {
    color: var(--secondary-glow);
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --hud-inset: 2vw;
    }

    #hud-nav {
        top: calc(var(--hud-inset) + 10px);
        left: 50%;
        transform: translateX(-50%);
        flex-direction: row;
        gap: 12px;
    }

    .nav-label {
        display: none;
    }

    .data-card {
        left: 5%;
        width: 90%;
        padding: 32px 28px;
    }

    .card-heading {
        font-size: clamp(1.8rem, 8vw, 3rem);
    }
}