/* === Reset & Base === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --frost-white: #f4f3f0;
    --warm-gray: #e8e6e1;
    --mid-gray: #d4d2cd;
    --cool-gray: #c8c6c1;
    --steel-blue: #a3b8cc;
    --muted-blue: #8daec5;
    --plum: #7b6b8a;
    --charcoal: #2c2c2e;
    --deep-black: #1a1a1e;
    --grid-max: 1280px;
    --gap: 2rem;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    background-color: var(--frost-white);
    color: var(--charcoal);
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 400;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* === Typography === */
.section-heading {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 600;
    font-size: clamp(2.5rem, 5vw, 5rem);
    letter-spacing: -0.015em;
    line-height: 0.92;
    color: var(--charcoal);
}

.mono-text {
    font-family: 'DM Mono', monospace;
    font-size: 0.85rem;
    color: var(--plum);
    letter-spacing: 0.02em;
}

/* === Crystalline Lattice Background === */
.lattice {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
}

.lattice-facet {
    position: absolute;
    border: 1px solid var(--cool-gray);
    opacity: 0;
    transition: opacity 1.5s ease;
}

.lattice-facet.visible {
    opacity: 1;
}

/* === Scanlines === */
.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 100;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 3px,
        rgba(139, 174, 197, 0.015) 3px,
        rgba(139, 174, 197, 0.015) 4px
    );
}

/* === Hero Section === */
.hero {
    position: relative;
    z-index: 10;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 4rem var(--gap);
    max-width: var(--grid-max);
    margin: 0 auto;
}

.hero-title {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 600;
    font-size: clamp(3.5rem, 8vw, 8rem);
    letter-spacing: -0.015em;
    line-height: 0.92;
    color: var(--charcoal);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 1.2s ease 0.2s forwards;
}

.title-line {
    display: block;
}

.title-accent {
    color: var(--plum);
    position: relative;
    left: 24px;
}

.hero-subtitle {
    margin-top: 3rem;
    opacity: 0;
    transform: translateY(12px);
    animation: fadeUp 1s ease 0.8s forwards;
}

.hero-subtitle p {
    font-family: 'DM Mono', monospace;
    font-size: clamp(0.85rem, 1.5vw, 1.1rem);
    color: var(--steel-blue);
    letter-spacing: 0.05em;
}

/* === Manifesto Section === */
.manifesto {
    position: relative;
    z-index: 10;
    padding: 8rem var(--gap);
    max-width: var(--grid-max);
    margin: 0 auto;
}

.manifesto-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.manifesto-col--right {
    transform: translateY(48px);
}

.manifesto-text {
    font-size: clamp(1rem, 1.8vw, 1.25rem);
    line-height: 1.7;
    color: var(--charcoal);
    margin-bottom: 1.5rem;
}

.manifesto-text--italic {
    font-style: italic;
    color: var(--plum);
}

.crystal-divider {
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, var(--steel-blue), transparent);
    margin: 2rem 0;
}

/* === Signal Section === */
.signal {
    position: relative;
    z-index: 10;
    padding: 8rem var(--gap);
    background-color: var(--charcoal);
    color: var(--frost-white);
}

.signal-content {
    max-width: var(--grid-max);
    margin: 0 auto;
}

.signal-heading {
    color: var(--frost-white);
    margin-bottom: 4rem;
}

.signal-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.signal-card {
    border: 1px solid rgba(163, 184, 204, 0.2);
    padding: 2.5rem;
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease, border-color 0.3s ease;
}

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

.signal-card:hover {
    border-color: var(--plum);
}

.signal-card:nth-child(2) {
    transform: translateY(30px) translateX(24px);
}

.signal-card:nth-child(2).visible {
    transform: translateY(0) translateX(24px);
}

.signal-card:nth-child(3) {
    transform: translateY(30px) translateX(-12px);
}

.signal-card:nth-child(3).visible {
    transform: translateY(0) translateX(-12px);
}

.signal-index {
    font-family: 'DM Mono', monospace;
    font-size: 0.75rem;
    color: var(--steel-blue);
    display: block;
    margin-bottom: 1rem;
    letter-spacing: 0.1em;
}

.signal-text {
    font-family: 'Source Serif 4', serif;
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--warm-gray);
}

/* === Quest Section === */
.quest {
    position: relative;
    z-index: 10;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem var(--gap);
}

.quest-content {
    text-align: center;
}

.quest-title {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 600;
    font-size: clamp(2.5rem, 6vw, 6rem);
    letter-spacing: -0.015em;
    line-height: 0.92;
    color: var(--charcoal);
    margin-bottom: 3rem;
}

.quest-input-wrapper {
    font-family: 'DM Mono', monospace;
    font-size: 1.1rem;
    color: var(--plum);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 3rem;
    min-height: 2rem;
}

.quest-prompt {
    color: var(--steel-blue);
}

.quest-cursor {
    display: inline-block;
    width: 2px;
    height: 1.2em;
    background: var(--plum);
    animation: blink 1s step-end infinite;
}

.quest-typed {
    color: var(--charcoal);
}

.quest-footer {
    opacity: 0.6;
}

/* === Frost Particles === */
.frost-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 5;
}

.frost-particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--steel-blue);
    border-radius: 50%;
    opacity: 0;
    animation: drift 8s linear infinite;
}

/* === Glitch Effect === */
.glitch-active .hero-title {
    animation: glitch 0.3s ease;
}

/* === Animations === */
@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes blink {
    50% { opacity: 0; }
}

@keyframes drift {
    0% {
        opacity: 0;
        transform: translateY(0) translateX(0);
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        opacity: 0;
        transform: translateY(100vh) translateX(20px);
    }
}

@keyframes glitch {
    0% { transform: translate(0); }
    20% { transform: translate(-2px, 1px); }
    40% { transform: translate(2px, -1px); }
    60% { transform: translate(-1px, -2px); }
    80% { transform: translate(1px, 2px); }
    100% { transform: translate(0); }
}

/* === Responsive === */
@media (max-width: 768px) {
    .manifesto-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .manifesto-col--right {
        transform: translateY(0);
    }

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

    .signal-card:nth-child(2),
    .signal-card:nth-child(2).visible {
        transform: translateX(0);
    }

    .signal-card:nth-child(3),
    .signal-card:nth-child(3).visible {
        transform: translateX(0);
    }

    .title-accent {
        left: 12px;
    }
}