/* tanso.market - Bauhaus Carbon Commerce */
/* Colors: #1a1a2e (deep base), #4a90d9 (primary blue), #f5f0e8 (warm off-white), #e8b84b (accent gold), #6c757d (muted gray) */
/* Font: Inter */

:root {
    --deep-base: #1a1a2e;
    --primary-blue: #4a90d9;
    --warm-white: #f5f0e8;
    --accent-gold: #e8b84b;
    --muted-gray: #6c757d;
    --font-main: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--deep-base);
    color: var(--warm-white);
    overflow-x: hidden;
    position: relative;
}

/* Particle Canvas */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* Header */
#site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.5rem 3rem;
    background: rgba(26, 26, 46, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(74, 144, 217, 0.15);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

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

.logo-mark {
    color: var(--accent-gold);
    font-size: 1.5rem;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--warm-white);
}

.logo-dot {
    color: var(--accent-gold);
}

#main-nav {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    color: var(--muted-gray);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gold);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--warm-white);
}

.nav-link:hover::after {
    width: 100%;
}

/* Hero Section */
#hero {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 8rem 3rem 4rem;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    position: relative;
}

.hero-title-block {
    grid-column: 1 / 2;
    grid-row: 1 / 2;
    z-index: 2;
}

.hero-title {
    font-size: clamp(3.5rem, 8vw, 7rem);
    font-weight: 900;
    line-height: 0.95;
    letter-spacing: -0.03em;
}

.kinetic-line {
    display: block;
    opacity: 0;
    transform: translateX(-40px) skewX(-3deg);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.kinetic-line.visible {
    opacity: 1;
    transform: translateX(0) skewX(0);
}

.kinetic-line.accent {
    color: var(--accent-gold);
}

.hero-shape {
    position: absolute;
    z-index: 1;
}

.shape-circle {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    border: 3px solid var(--primary-blue);
    opacity: 0.3;
    top: 5%;
    right: 10%;
    animation: floatRotate 20s linear infinite;
}

.shape-rect {
    width: 200px;
    height: 200px;
    border: 3px solid var(--accent-gold);
    opacity: 0.2;
    bottom: 15%;
    right: 25%;
    transform: rotate(25deg);
    animation: floatRotate 25s linear infinite reverse;
}

.hero-stats {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    gap: 2rem;
    padding-right: 2rem;
    z-index: 2;
}

.stat-item {
    text-align: right;
}

.stat-value {
    display: block;
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--accent-gold);
    letter-spacing: -0.02em;
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--muted-gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.5rem;
}

.hero-tagline {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
    max-width: 500px;
    z-index: 2;
}

.hero-tagline p {
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--muted-gray);
    font-weight: 300;
}

/* Bauhaus Dividers */
.bauhaus-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 3rem 0;
    max-width: 1400px;
    margin: 0 auto;
}

.divider-circle {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-blue);
}

.divider-line {
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-gold));
    max-width: 300px;
}

.divider-triangle {
    width: 0;
    height: 0;
    border-left: 14px solid transparent;
    border-right: 14px solid transparent;
    border-bottom: 24px solid var(--accent-gold);
}

/* Section Headers */
.section-header {
    max-width: 1400px;
    margin: 0 auto 3rem;
    padding: 0 3rem;
    position: relative;
}

.broken-grid-header {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2rem;
    align-items: center;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    position: relative;
    z-index: 2;
}

.header-shape {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-blue);
    opacity: 0.3;
    justify-self: end;
}

.header-shape.rect-shape {
    border-radius: 0;
    background: var(--accent-gold);
    transform: rotate(45deg);
    width: 40px;
    height: 40px;
}

.header-shape.tri-shape {
    background: none;
    width: 0;
    height: 0;
    border-left: 30px solid transparent;
    border-right: 30px solid transparent;
    border-bottom: 52px solid var(--primary-blue);
    opacity: 0.3;
}

/* Market Section */
#market {
    position: relative;
    z-index: 1;
    padding: 6rem 3rem;
}

.market-ticker {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.ticker-item {
    background: rgba(74, 144, 217, 0.08);
    border: 1px solid rgba(74, 144, 217, 0.2);
    border-radius: 4px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.ticker-item:hover {
    transform: translateY(-4px);
    border-color: var(--accent-gold);
}

.ticker-name {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted-gray);
    font-weight: 600;
}

.ticker-price {
    font-size: 2rem;
    font-weight: 900;
    color: var(--warm-white);
    letter-spacing: -0.01em;
}

.ticker-change {
    font-size: 0.95rem;
    font-weight: 600;
}

.ticker-change.positive {
    color: #4ecdc4;
}

.ticker-change.negative {
    color: #ff6b6b;
}

/* Products Section */
#products {
    position: relative;
    z-index: 1;
    padding: 6rem 3rem;
}

.products-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.product-card {
    background: rgba(245, 240, 232, 0.04);
    border: 1px solid rgba(245, 240, 232, 0.1);
    border-radius: 4px;
    overflow: hidden;
    transition: transform 0.1s ease, box-shadow 0.3s ease;
    perspective: 800px;
    cursor: pointer;
}

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

.product-card:nth-child(5) {
    transform: translateY(30px);
}

.card-inner {
    padding: 2rem;
    transform-style: preserve-3d;
    transition: transform 0.1s ease;
}

.card-category {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-gold);
    font-weight: 700;
    margin-bottom: 1rem;
}

.card-icon {
    margin-bottom: 1.25rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.card-desc {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--muted-gray);
    margin-bottom: 1.5rem;
    font-weight: 300;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(245, 240, 232, 0.1);
}

.card-price {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.card-volume {
    font-size: 0.8rem;
    color: var(--muted-gray);
    font-weight: 500;
}

/* Metrics Section */
#metrics {
    position: relative;
    z-index: 1;
    padding: 6rem 3rem;
}

.metrics-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.metric-block {
    background: rgba(74, 144, 217, 0.06);
    border: 1px solid rgba(74, 144, 217, 0.15);
    border-radius: 4px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.metric-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-gold);
}

.metric-value {
    font-size: 3rem;
    font-weight: 900;
    color: var(--warm-white);
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.metric-unit {
    font-size: 0.85rem;
    color: var(--accent-gold);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.5rem;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--muted-gray);
    font-weight: 400;
    margin-bottom: 1.25rem;
}

.metric-bar {
    width: 100%;
    height: 4px;
    background: rgba(245, 240, 232, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.metric-bar-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-gold));
    border-radius: 2px;
    transition: width 1.5s ease;
}

/* About Section */
#about {
    position: relative;
    z-index: 1;
    padding: 8rem 3rem;
}

.about-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
}

.accent-text {
    color: var(--accent-gold);
}

.about-text {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--muted-gray);
    font-weight: 300;
    margin-bottom: 1.5rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--accent-gold);
    color: var(--deep-base);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(232, 184, 75, 0.3);
}

.about-shapes {
    position: relative;
    height: 400px;
}

.floating-shape {
    position: absolute;
    animation: floatShape 8s ease-in-out infinite;
}

.shape-a {
    width: 180px;
    height: 180px;
    border: 3px solid var(--primary-blue);
    border-radius: 50%;
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.shape-b {
    width: 120px;
    height: 120px;
    background: rgba(232, 184, 75, 0.15);
    top: 40%;
    left: 50%;
    transform: rotate(45deg);
    animation-delay: -2s;
}

.shape-c {
    width: 0;
    height: 0;
    border-left: 60px solid transparent;
    border-right: 60px solid transparent;
    border-bottom: 104px solid rgba(74, 144, 217, 0.2);
    top: 10%;
    right: 10%;
    animation-delay: -4s;
}

/* Footer */
#site-footer {
    position: relative;
    z-index: 1;
    padding: 3rem;
    border-top: 1px solid rgba(245, 240, 232, 0.08);
}

.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-brand .logo-mark {
    color: var(--accent-gold);
    font-size: 1.2rem;
}

.footer-brand .logo-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--warm-white);
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--muted-gray);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--warm-white);
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--muted-gray);
    font-weight: 300;
}

/* Animations */
@keyframes floatRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes floatShape {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes tickerSlide {
    0% { opacity: 0; transform: translateY(10px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Kinetic price animation */
.kinetic-price {
    display: inline-block;
    transition: transform 0.3s ease;
}

.kinetic-price.updating {
    animation: priceFlash 0.5s ease;
}

@keyframes priceFlash {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); color: var(--accent-gold); }
    100% { transform: scale(1); }
}

/* Responsive */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .product-card:nth-child(2),
    .product-card:nth-child(5) {
        transform: none;
    }
}

@media (max-width: 768px) {
    #site-header {
        padding: 1rem 1.5rem;
    }
    #main-nav {
        gap: 1.5rem;
    }
    .nav-link {
        font-size: 0.75rem;
    }
    #hero {
        padding: 7rem 1.5rem 3rem;
    }
    .hero-grid {
        grid-template-columns: 1fr;
    }
    .hero-stats {
        align-items: flex-start;
        flex-direction: row;
        gap: 3rem;
    }
    .stat-item {
        text-align: left;
    }
    .hero-title {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }
    .products-grid {
        grid-template-columns: 1fr;
    }
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
    .about-shapes {
        display: none;
    }
    #market, #products, #metrics, #about {
        padding: 4rem 1.5rem;
    }
    .section-header {
        padding: 0 1.5rem;
    }
    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
    .shape-circle {
        width: 150px;
        height: 150px;
    }
    .shape-rect {
        width: 100px;
        height: 100px;
    }
}