/* ===== tanso.wiki — styles.css ===== */

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

:root {
    --cream: #fdf8f0;
    --charcoal: #2d2a24;
    --rose: #e8c4b8;
    --teal: #4bc8a8;
    --magenta: #c84b6f;
    --gold: #f5d76e;
    --sage: #b8d4c8;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Lora', Georgia, serif;
    font-size: 18px;
    line-height: 1.75;
    color: var(--charcoal);
    background: var(--cream);
    overflow-x: hidden;
    position: relative;
}

/* Grain Overlay */
#grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    opacity: 0.08;
}

#grain-overlay svg {
    width: 100%;
    height: 100%;
}

/* Parallax Background Layer */
#parallax-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(184, 212, 200, 0.3) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(232, 196, 184, 0.25) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, rgba(245, 215, 110, 0.15) 0%, transparent 50%),
        var(--cream);
}

/* Navigation */
#wiki-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(253, 248, 240, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(45, 42, 36, 0.08);
    transition: transform 0.3s ease;
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    text-decoration: none;
    display: flex;
    align-items: baseline;
    gap: 0;
}

.logo-tanso {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--charcoal);
}

.logo-wiki {
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    color: var(--teal);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    text-decoration: none;
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
    color: var(--charcoal);
    opacity: 0.7;
    transition: opacity 0.2s, color 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--teal);
}

/* Hero */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 2rem 4rem;
    position: relative;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 900;
    margin-bottom: 0.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-family: 'Space Mono', monospace;
    font-size: 1.1rem;
    color: var(--teal);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.hero-tagline {
    font-size: 1.15rem;
    color: var(--charcoal);
    opacity: 0.8;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-formula {
    display: inline-block;
    background: var(--charcoal);
    padding: 0.75rem 2rem;
    border-radius: 4px;
}

.hero-formula code {
    font-family: 'Space Mono', monospace;
    font-size: 1rem;
    color: var(--teal);
    letter-spacing: 0.05em;
}

/* Glitch Text Effect */
.glitch-text {
    position: relative;
    display: inline-block;
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    pointer-events: none;
}

.glitch-text::before {
    color: var(--magenta);
    z-index: -1;
}

.glitch-text::after {
    color: var(--teal);
    z-index: -1;
}

.glitch-text:hover::before {
    opacity: 0.8;
    animation: glitch-before 0.15s 3;
}

.glitch-text:hover::after {
    opacity: 0.8;
    animation: glitch-after 0.15s 3;
}

@keyframes glitch-before {
    0% { transform: translate(0); }
    25% { transform: translate(3px, -1px); }
    50% { transform: translate(-3px, 1px); }
    75% { transform: translate(2px, 1px); }
    100% { transform: translate(0); }
}

@keyframes glitch-after {
    0% { transform: translate(0); }
    25% { transform: translate(-3px, 1px); }
    50% { transform: translate(3px, -1px); }
    75% { transform: translate(-2px, -1px); }
    100% { transform: translate(0); }
}

/* Section Title Glitch Hover */
.section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    position: relative;
    cursor: default;
}

.section-title:hover {
    animation: section-glitch 0.15s 3;
}

@keyframes section-glitch {
    0% { text-shadow: none; }
    25% { text-shadow: 3px 0 var(--magenta), -3px 0 var(--teal); }
    50% { text-shadow: -3px 0 var(--magenta), 3px 0 var(--teal); }
    75% { text-shadow: 2px 0 var(--gold), -2px 0 var(--magenta); }
    100% { text-shadow: none; }
}

.subsection-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    font-weight: 700;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--charcoal);
}

/* Content Sections */
.content-section {
    padding: 2rem 2rem 0;
}

.section-panel {
    max-width: 1100px;
    margin: 0 auto;
    padding: 3rem;
    background: rgba(253, 248, 240, 0.6);
    border: 1px solid rgba(45, 42, 36, 0.06);
    border-radius: 8px;
}

.section-panel.rose-bg {
    background: rgba(232, 196, 184, 0.2);
}

/* Section Dividers */
.section-divider {
    padding: 2rem 0;
    max-width: 1200px;
    margin: 0 auto;
}

.section-divider svg {
    width: 100%;
    height: 60px;
    display: block;
}

.circuit-path {
    stroke-dasharray: 1200;
    stroke-dashoffset: 1200;
    animation: draw-circuit 2s ease forwards;
}

@keyframes draw-circuit {
    to { stroke-dashoffset: 0; }
}

/* Wiki Content */
.wiki-content p {
    margin-bottom: 1rem;
}

.wiki-content strong {
    font-weight: 700;
}

.wiki-content em {
    font-style: italic;
}

.wiki-content code {
    font-family: 'Space Mono', monospace;
    font-size: 0.85em;
    background: rgba(75, 200, 168, 0.12);
    padding: 0.1em 0.4em;
    border-radius: 3px;
    color: var(--charcoal);
}

.wiki-list {
    list-style: none;
    padding-left: 0;
    margin-top: 0.5rem;
}

.wiki-list li {
    padding: 0.35rem 0;
    padding-left: 1.2rem;
    position: relative;
}

.wiki-list li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--teal);
    font-weight: 700;
}

.data-label {
    font-family: 'Space Mono', monospace;
    font-size: 0.85em;
    color: var(--magenta);
}

/* Two Column Layout */
.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

/* Carbon Cycle Diagram */
.carbon-cycle-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 2rem 1rem;
    background: rgba(45, 42, 36, 0.03);
    border-radius: 8px;
    border: 1px solid rgba(45, 42, 36, 0.08);
}

.cycle-node {
    text-align: center;
    padding: 1rem 1.5rem;
    border-radius: 6px;
    width: 80%;
    border: 2px solid;
    transition: transform 0.3s ease;
}

.cycle-node:hover {
    transform: scale(1.05);
}

.cycle-node.atmosphere { border-color: var(--teal); background: rgba(75, 200, 168, 0.08); }
.cycle-node.biosphere { border-color: var(--sage); background: rgba(184, 212, 200, 0.12); }
.cycle-node.ocean { border-color: var(--magenta); background: rgba(200, 75, 111, 0.06); }
.cycle-node.lithosphere { border-color: var(--gold); background: rgba(245, 215, 110, 0.1); }

.node-label {
    display: block;
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.1rem;
}

.node-value {
    display: block;
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    opacity: 0.7;
    margin-top: 0.2rem;
}

.cycle-arrow {
    width: 2px;
    height: 20px;
    background: var(--charcoal);
    opacity: 0.2;
    position: relative;
}

.cycle-arrow::after {
    content: '▼';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.5rem;
    color: var(--charcoal);
    opacity: 0.4;
}

/* Data Table */
.wiki-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.95rem;
}

.wiki-table th {
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: left;
    padding: 0.75rem 1rem;
    border-bottom: 2px solid var(--charcoal);
    color: var(--charcoal);
}

.wiki-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid rgba(45, 42, 36, 0.1);
    vertical-align: middle;
}

.bar-chart {
    width: 100%;
    height: 16px;
    background: rgba(45, 42, 36, 0.06);
    border-radius: 3px;
    overflow: hidden;
}

.bar {
    height: 100%;
    background: var(--teal);
    border-radius: 3px;
    transition: width 1s ease;
}

.bar.bar-accent { background: var(--magenta); }
.bar.bar-yellow { background: var(--gold); }

/* Solutions Grid */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.solution-card {
    padding: 2rem;
    background: rgba(253, 248, 240, 0.8);
    border: 1px solid rgba(45, 42, 36, 0.08);
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    transform: translateY(30px) scale(0.95);
}

.solution-card.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    transition: opacity 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
                transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(45, 42, 36, 0.1);
}

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

.solution-card h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.solution-card p {
    font-size: 0.95rem;
    opacity: 0.85;
    line-height: 1.6;
}

/* Metrics */
.metrics-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.metric-card {
    text-align: center;
    padding: 1.5rem 1rem;
    background: rgba(253, 248, 240, 0.8);
    border-radius: 8px;
    border: 1px solid rgba(45, 42, 36, 0.08);
}

.metric-value {
    display: block;
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--charcoal);
    line-height: 1.1;
}

.metric-unit {
    display: block;
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
    color: var(--teal);
    margin-top: 0.25rem;
}

.metric-label {
    display: block;
    font-size: 0.85rem;
    opacity: 0.7;
    margin-top: 0.5rem;
}

/* References */
.references li {
    font-size: 0.9rem;
    opacity: 0.75;
}

/* Footer */
#wiki-footer {
    padding: 4rem 2rem;
    text-align: center;
    border-top: 1px solid rgba(45, 42, 36, 0.08);
    margin-top: 4rem;
}

.footer-inner {
    max-width: 600px;
    margin: 0 auto;
}

.footer-logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.footer-text {
    font-style: italic;
    opacity: 0.6;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.footer-hex {
    opacity: 0.5;
}

/* Elastic Entrance Animation */
@keyframes elastic-in {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    60% {
        transform: translateY(-5px) scale(1.02);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; }

    .two-column {
        grid-template-columns: 1fr;
    }

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

    .metrics-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-panel {
        padding: 2rem 1.5rem;
    }

    body {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .metrics-row {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 2.5rem;
    }
}