/* ============================================
   opensource.bid - Evolved-Minimal Gallery
   Horizontal-scroll auction house for code
   ============================================ */

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

html, body {
    height: 100%;
    overflow: hidden;
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 400;
    line-height: 1.6;
    color: #FFFBF0;
    background: #3D1F5C;
}

/* --- Color Variables --- */
:root {
    --amethyst: #3D1F5C;
    --sapphire: #1B4D8E;
    --emerald: #1A5C3A;
    --ivory: #FFFBF0;
    --amber: #F5B742;
    --ruby: #C0392B;
}

/* --- Gallery Container --- */
.gallery {
    display: flex;
    flex-direction: row;
    height: 100vh;
    overflow-x: scroll;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.gallery::-webkit-scrollbar {
    display: none;
}

/* --- Panel Base --- */
.panel {
    min-width: 100vw;
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    scroll-snap-align: start;
    overflow: hidden;
}

/* --- Panel Color Variants --- */
.panel-amethyst {
    background-color: var(--amethyst);
}

.panel-sapphire {
    background-color: var(--sapphire);
}

.panel-emerald {
    background-color: var(--emerald);
}

/* --- Lens Flare Effect --- */
.lens-flare {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 25% 25%, var(--amber) 0%, transparent 60%);
    opacity: 0.08;
    pointer-events: none;
    z-index: 1;
}

/* --- Cultural Textile Patterns --- */
.textile-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.03;
    pointer-events: none;
    z-index: 1;
}

/* Ikat pattern - diagonal stepped lines */
.pattern-ikat {
    background-image:
        repeating-linear-gradient(
            45deg,
            var(--ivory) 0px,
            var(--ivory) 2px,
            transparent 2px,
            transparent 20px
        ),
        repeating-linear-gradient(
            -45deg,
            var(--ivory) 0px,
            var(--ivory) 2px,
            transparent 2px,
            transparent 20px
        );
}

/* Shibori pattern - organic wavy lines */
.pattern-shibori {
    background-image:
        repeating-linear-gradient(
            90deg,
            var(--ivory) 0px,
            var(--ivory) 1px,
            transparent 1px,
            transparent 12px
        ),
        repeating-linear-gradient(
            0deg,
            var(--ivory) 0px,
            var(--ivory) 1px,
            transparent 1px,
            transparent 24px
        );
}

/* Kente pattern - interlocking rectangular blocks */
.pattern-kente {
    background-image:
        repeating-linear-gradient(
            0deg,
            var(--ivory) 0px,
            var(--ivory) 3px,
            transparent 3px,
            transparent 15px
        ),
        repeating-linear-gradient(
            90deg,
            var(--ivory) 0px,
            var(--ivory) 3px,
            transparent 3px,
            transparent 30px
        );
}

/* --- Panel Content Layouts --- */
.panel-content {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    display: flex;
    padding: 6vh 8vw;
}

.panel-content--centered {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.panel-content--split {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 4vw;
}

.panel-content--vertical {
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: 3vh;
}

/* --- Title Panel (Panel 1) --- */
.site-title {
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 900;
    font-size: clamp(3rem, 8vw, 8rem);
    color: var(--ivory);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.pulse-line {
    width: 120px;
    height: 3px;
    background: var(--amber);
    margin-top: 2rem;
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        opacity: 0.4;
        box-shadow: 0 0 8px var(--amber);
    }
    50% {
        opacity: 1;
        box-shadow: 0 0 20px var(--amber), 0 0 40px var(--amber);
    }
}

/* --- Split Layout (Panels 2, 4, 5) --- */
.split-left {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.split-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    text-align: right;
}

.panel-label {
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 300;
    font-size: 0.85rem;
    color: var(--amber);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
}

.project-title {
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 700;
    font-size: clamp(2rem, 4vw, 4rem);
    color: var(--ivory);
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

.project-meta {
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 300;
    font-size: 0.9rem;
    color: var(--ivory);
    opacity: 0.6;
}

.project-description {
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 400;
    font-size: 1rem;
    color: var(--ivory);
    line-height: 1.6;
    max-width: 500px;
    margin-bottom: 1.5rem;
}

/* --- Badges --- */
.badge {
    display: inline-block;
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    padding: 0.4em 1.2em;
    border-radius: 2px;
}

.badge-ruby {
    background: var(--ruby);
    color: var(--ivory);
}

/* --- Vertical Layout (Panel 3) --- */
.item-block {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2.5vh 0;
    border-bottom: 1px solid rgba(255, 251, 240, 0.1);
}

.item-block:last-of-type {
    border-bottom: none;
}

.item-info {
    flex: 1;
    padding-right: 2rem;
}

.item-title {
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 700;
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    color: var(--ivory);
    margin-bottom: 0.3rem;
}

.item-desc {
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 400;
    font-size: 1rem;
    color: var(--ivory);
    opacity: 0.7;
    max-width: 600px;
}

/* --- Slide-in Cards (Progressive Disclosure) --- */
.slide-card {
    position: absolute;
    right: 0;
    top: 0;
    width: 360px;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    padding: 6vh 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transform: translateX(100%);
    transition: transform 0.4s ease;
    z-index: 10;
}

.slide-card.active {
    transform: translateX(0);
}

.slide-card h3 {
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 700;
    font-size: 1.3rem;
    color: var(--amber);
    margin-bottom: 1.5rem;
}

.slide-card p {
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 400;
    font-size: 0.95rem;
    color: var(--ivory);
    line-height: 1.8;
    opacity: 0.85;
}

/* --- Closing Panel (Panel 6) --- */
.closing-title {
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 700;
    font-size: clamp(2rem, 4vw, 4rem);
    color: var(--ivory);
    margin-bottom: 1rem;
}

.closing-text {
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 400;
    font-size: 1.1rem;
    color: var(--ivory);
    opacity: 0.7;
    max-width: 540px;
    margin-bottom: 2rem;
}

/* --- Scroll Hint --- */
.scroll-hint {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: 'Commissioner', sans-serif;
    font-variation-settings: 'wght' 300;
    font-size: 0.8rem;
    color: var(--ivory);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 1;
    transition: opacity 0.6s ease;
    z-index: 100;
    pointer-events: none;
}

.scroll-hint.hidden {
    opacity: 0;
}

.scroll-hint .arrow {
    font-size: 1.2rem;
    animation: nudge-right 1.5s ease-in-out infinite;
}

@keyframes nudge-right {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(6px);
    }
}

/* --- Progress Bar --- */
.progress-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: var(--amber);
    z-index: 100;
    transition: width 0.1s linear;
    box-shadow: 0 0 8px var(--amber);
}

/* --- Hover Effects for Variable Font --- */
.project-title,
.item-title {
    transition: font-variation-settings 0.3s ease;
}

.project-title:hover {
    font-variation-settings: 'wght' 900;
}

.item-title:hover {
    font-variation-settings: 'wght' 900;
}

/* --- Responsive adjustments --- */
@media (max-width: 768px) {
    .panel-content--split {
        flex-direction: column;
        gap: 3vh;
    }

    .split-right {
        align-items: flex-start;
        text-align: left;
    }

    .slide-card {
        width: 280px;
    }

    .panel-content {
        padding: 4vh 6vw;
    }
}