/* rational.today - Seapunk Editorial */

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

:root {
    --seafoam-cream: #E8F0ED;
    --lagoon-teal: #1A8A7D;
    --coral-blush: #F28B82;
    --abyss-indigo: #1E2D4A;
    --ink-dark: #1A2A26;
    --pearl-white: #F4F8F6;
    --angelfish-gold: #E8C547;
    --bioluminescent: #4AEDC4;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Merriweather', serif;
    font-weight: 300;
    font-size: 1rem;
    line-height: 1.75;
    background-color: var(--seafoam-cream);
    color: var(--ink-dark);
    overflow-x: hidden;
}

/* === Masthead === */
#masthead {
    text-align: center;
    padding: 2rem 2rem 1rem;
    position: relative;
}

.masthead-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 0.5rem;
}

.masthead-title {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 700;
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--lagoon-teal);
    opacity: 0;
    transition: opacity 0.8s ease;
}

.masthead-title.visible {
    opacity: 1;
}

.fish-icon {
    opacity: 0;
    transition: opacity 0.5s ease, transform 1s ease;
}

.fish-left {
    transform: translateX(-40px);
}

.fish-right {
    transform: translateX(40px);
}

.fish-icon.swim-in {
    opacity: 1;
    transform: translateX(0);
}

.wave-divider {
    width: 100%;
    height: 20px;
    margin: 0.5rem 0;
}

.wave-path {
    stroke-dasharray: 2000;
    stroke-dashoffset: 2000;
    transition: stroke-dashoffset 0.8s ease;
    animation: waveFlow 4s linear infinite;
}

.wave-path.drawn {
    stroke-dashoffset: 0;
}

@keyframes waveFlow {
    from { transform: translateX(-20%); }
    to { transform: translateX(0); }
}

.masthead-nav {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin: 0.5rem 0;
    opacity: 0;
    transition: opacity 0.5s ease 0.5s;
}

.masthead-nav.visible {
    opacity: 1;
}

.nav-cat {
    font-family: 'Karla', sans-serif;
    font-weight: 500;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--lagoon-teal);
    cursor: pointer;
    transition: color 0.3s;
}

.nav-cat:hover {
    color: var(--coral-blush);
}

.nav-sep {
    color: var(--lagoon-teal);
    opacity: 0.4;
}

.dateline {
    font-family: 'Karla', sans-serif;
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--ink-dark);
    opacity: 0.5;
    margin-top: 0.5rem;
}

/* === Content Area === */
#content-area {
    display: grid;
    grid-template-columns: 1fr 220px;
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
}

/* === Article Grid === */
#article-grid {
    display: contents;
}

#front-page,
#deep-page {
    grid-column: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

/* === Article Cards === */
.article-card {
    perspective: 1000px;
    min-height: 320px;
    cursor: pointer;
}

.card-wide {
    grid-column: span 2;
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 320px;
    transition: transform 0.5s ease;
    transform-style: preserve-3d;
}

.article-card:hover .card-inner,
.article-card.touched .card-inner {
    transform: rotateY(180deg);
}

.article-card:hover .card-inner::after,
.article-card.touched .card-inner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    background-color: var(--coral-blush);
    transform: translateX(-50%);
    animation: flipEdge 0.5s ease forwards;
    pointer-events: none;
}

@keyframes flipEdge {
    0% { opacity: 0; }
    40% { opacity: 1; }
    60% { opacity: 1; }
    100% { opacity: 0; }
}

.card-front,
.card-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    min-height: 320px;
    backface-visibility: hidden;
    border-radius: 6px;
    overflow: hidden;
}

.card-front {
    background-color: var(--seafoam-cream);
    border: 1px solid rgba(26, 138, 125, 0.15);
    display: flex;
    flex-direction: column;
}

.card-back {
    background-color: var(--abyss-indigo);
    color: var(--pearl-white);
    transform: rotateY(180deg);
    padding: 2rem;
    display: flex;
    align-items: center;
}

.card-excerpt {
    font-family: 'Merriweather', serif;
    font-weight: 300;
    font-size: 0.95rem;
    line-height: 1.75;
}

/* === Generative Art === */
.generative-art {
    flex: 1;
    min-height: 160px;
    position: relative;
    overflow: hidden;
}

.art-anemone {
    background:
        radial-gradient(circle at 30% 40%, rgba(26, 138, 125, 0.4), transparent 40%),
        radial-gradient(circle at 70% 60%, rgba(74, 237, 196, 0.3), transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(242, 139, 130, 0.2), transparent 50%);
    background-color: rgba(26, 138, 125, 0.05);
}

.art-coral {
    background:
        conic-gradient(from calc(var(--rotation, 45) * 1deg) at 40% 50%, var(--lagoon-teal) 0deg, transparent 60deg, var(--bioluminescent) 120deg, transparent 180deg, var(--coral-blush) 240deg, transparent 300deg, var(--lagoon-teal) 360deg);
    opacity: 0.6;
}

.art-bubbles {
    background:
        radial-gradient(circle at 25% 30%, rgba(74, 237, 196, 0.4) 10%, transparent 11%),
        radial-gradient(circle at 60% 20%, rgba(74, 237, 196, 0.3) 8%, transparent 9%),
        radial-gradient(circle at 40% 65%, rgba(74, 237, 196, 0.35) 12%, transparent 13%),
        radial-gradient(circle at 75% 55%, rgba(74, 237, 196, 0.25) 6%, transparent 7%),
        radial-gradient(circle at 15% 70%, rgba(74, 237, 196, 0.3) 9%, transparent 10%);
    background-color: rgba(30, 45, 74, 0.05);
}

.art-current {
    background: repeating-linear-gradient(
        calc(var(--rotation, 0) * 1deg),
        transparent 0px,
        rgba(26, 138, 125, 0.15) 2px,
        transparent 4px,
        rgba(74, 237, 196, 0.1) 6px,
        transparent 8px
    );
}

/* === Card Meta === */
.card-meta {
    padding: 1rem 1.25rem;
}

.card-category {
    font-family: 'Karla', sans-serif;
    font-weight: 500;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--coral-blush);
    display: block;
    margin-bottom: 0.5rem;
}

.card-headline {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 600;
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    color: var(--ink-dark);
    line-height: 1.3;
    margin-bottom: 0.5rem;
}

.card-byline {
    font-family: 'Karla', sans-serif;
    font-weight: 500;
    font-size: 0.75rem;
    color: var(--lagoon-teal);
    opacity: 0.6;
}

/* === Fade Up === */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === Feature River === */
.feature-river {
    grid-column: 1 / -1;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    margin: 2rem 0;
    background: linear-gradient(90deg, var(--lagoon-teal), var(--bioluminescent), var(--abyss-indigo));
    background-size: 200% 100%;
    animation: riverFlow 8s linear infinite;
    border-radius: 4px;
    position: relative;
}

@keyframes riverFlow {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

.river-quote {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 300;
    font-style: italic;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--pearl-white);
    text-align: center;
    max-width: 700px;
    line-height: 1.4;
}

.fish-seahorse-final {
    margin-top: 1rem;
    opacity: 0.6;
    animation: slowSpin 20s linear infinite;
}

@keyframes slowSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* === Sidebar === */
#sidebar {
    grid-column: 2;
    grid-row: 1 / -1;
    position: sticky;
    top: 2rem;
    max-height: 80vh;
    overflow-y: auto;
    padding: 1rem;
}

.sidebar-title {
    font-family: 'Karla', sans-serif;
    font-weight: 500;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--lagoon-teal);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(26, 138, 125, 0.2);
}

.dispatch-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.dispatch-item {
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
}

.dispatch-fish {
    flex-shrink: 0;
    margin-top: 4px;
    animation: fishSwim 3s ease-in-out infinite alternate;
}

@keyframes fishSwim {
    0% { transform: translateX(0) rotate(0deg); }
    50% { transform: translateX(3px) rotate(2deg); }
    100% { transform: translateX(0) rotate(0deg); }
}

.dispatch-text {
    font-family: 'Merriweather', serif;
    font-weight: 300;
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--ink-dark);
}

/* === Footer === */
.footer-masthead {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem 0;
    margin-top: 2rem;
}

.footer-title {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 700;
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--abyss-indigo);
}

/* === Responsive === */
@media (max-width: 768px) {
    #content-area {
        grid-template-columns: 1fr;
        padding: 1rem;
    }

    #front-page,
    #deep-page {
        grid-template-columns: 1fr;
    }

    .card-wide {
        grid-column: span 1;
    }

    #sidebar {
        grid-column: 1;
        grid-row: auto;
        position: static;
        max-height: none;
    }

    .feature-river {
        grid-column: 1;
    }

    .footer-masthead {
        grid-column: 1;
    }
}