/* ═══════════════════════════════════════════════
   ARTISTIC INTELLIGENCE — Premium Design System
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@100;200;300;400;500&display=swap');

:root {
    --white: #ffffff;
    --off-white: #f9f9f9;
    --cream: #f0f0f0;
    --light-gray: #e0e0e0;
    --mid-gray: #999999;
    --text-gray: #666666;
    --text-dark: #1a1a1a;
    --black: #000000;
    --accent: #1a1a1a;
    --accent-light: #cccccc;

    --font-display: 'Archivo', -apple-system, sans-serif;
    --font-body: 'Archivo', -apple-system, sans-serif;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
    --space-2xl: 12rem;

    --transition: 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-slow: 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-weight: 300;
    color: var(--text-dark);
    background: var(--off-white);
    line-height: 1.7;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ─── Typography ─── */

.t-display {
    font-family: var(--font-display);
    font-weight: 300;
    letter-spacing: 0.02em;
    line-height: 1.1;
}

.t-display-lg { font-size: clamp(2.5rem, 6vw, 5rem); }
.t-display-md { font-size: clamp(1.8rem, 4vw, 3rem); }
.t-display-sm { font-size: clamp(1.4rem, 3vw, 2rem); }

.t-body { font-family: var(--font-body); font-weight: 300; }
.t-body-sm { font-size: 0.875rem; }
.t-body-xs { font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; }

.t-italic { font-style: normal; }
.t-light { color: var(--text-gray); }
.t-center { text-align: center; }
.t-upper { text-transform: uppercase; letter-spacing: 0.15em; font-size: 0.7rem; }

/* ─── Layout ─── */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.section { padding: var(--space-xl) 0; }
.section-lg { padding: var(--space-2xl) 0; }

/* ═══════════════════════════════════════════════
   EXPO LANDING — Immersive Gallery
   ═══════════════════════════════════════════════ */

.expo {
    position: fixed;
    top: 0; left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--white);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition-slow);
}

.expo.is-hidden {
    opacity: 0;
    pointer-events: none;
}

.expo__gallery {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1200px;
}

/* Gallery wall effect */
.expo__wall {
    position: absolute;
    inset: 0;
    background: #ffffff;
}

/* Artwork frame — absolute positioned, each gets a unique placement via JS */
.expo__frame-wrap {
    position: absolute;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 16px;
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s ease;
    pointer-events: none;
}

.expo__frame-wrap.is-active {
    opacity: 1;
    pointer-events: all;
}

.expo__frame {
    position: relative;
    max-width: min(60vw, 520px);
    max-height: 50vh;
    background: var(--white);
    box-shadow:
        0 1px 4px rgba(0,0,0,0.04),
        0 4px 20px rgba(0,0,0,0.06);
}

.expo__frame img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    max-height: 48vh;
}

.expo__placeholder {
    width: min(60vw, 520px);
    height: 48vh;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
}

.expo__placeholder span {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 3rem);
    font-weight: 200;
    color: var(--mid-gray);
}

.expo__title {
    font-family: var(--font-display);
    font-size: clamp(1rem, 2vw, 1.4rem);
    font-weight: 300;
    color: var(--text-dark);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.expo__phrase {
    font-family: var(--font-display);
    font-size: clamp(0.8rem, 1.2vw, 0.95rem);
    font-weight: 200;
    color: var(--mid-gray);
    max-width: 400px;
    line-height: 1.6;
}

/* Navigation — invisible hover zones on left/right edges */
.expo__zone {
    position: absolute;
    top: 0;
    width: 120px;
    height: 100%;
    z-index: 20;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.expo__zone--left {
    left: 0;
    justify-content: flex-start;
    padding-left: 24px;
}

.expo__zone--right {
    right: 0;
    justify-content: flex-end;
    padding-right: 24px;
}

.expo__zone-arrow {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mid-gray);
    opacity: 0;
    transition: opacity 0.3s ease;
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(10px);
    border: 1px solid var(--light-gray);
}

.expo__zone:hover .expo__zone-arrow {
    opacity: 1;
}

.expo__zone-arrow:hover {
    color: var(--text-dark);
    border-color: var(--text-dark);
}

.expo__counter-wrap {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.expo__counter {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--mid-gray);
}

@media (max-width: 768px) {
    .expo__zone { width: 60px; }
    .expo__zone-arrow { width: 36px; height: 36px; }
}

.expo__enter {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: none;
}

.expo__enter.is-visible { display: block; }

/* Play button */
.expo__play {
    position: absolute;
    bottom: var(--space-lg);
    right: var(--space-md);
    z-index: 10;
    width: 48px;
    height: 48px;
    border: 1px solid var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-gray);
    transition: all var(--transition);
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(10px);
}

.expo__play:hover {
    border-color: var(--text-dark);
    color: var(--text-dark);
    transform: scale(1.05);
}

.expo__play.is-playing {
    border-color: var(--accent);
    color: var(--accent);
}

.expo__play svg { width: 18px; height: 18px; }

/* Logo top */
.expo__logo {
    position: absolute;
    top: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--mid-gray);
}


/* ═══════════════════════════════════════════════
   SITE NAVIGATION
   ═══════════════════════════════════════════════ */

.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.04);
    transition: transform var(--transition);
}

.site-header__inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-header__logo {
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--text-dark);
    font-weight: 400;
}

.site-header__nav {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.site-header__link {
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-gray);
    transition: color var(--transition);
    position: relative;
}

.site-header__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--text-dark);
    transition: width var(--transition);
}

.site-header__link:hover { color: var(--text-dark); }
.site-header__link:hover::after { width: 100%; }
.site-header__link.is-active { color: var(--text-dark); }
.site-header__link.is-active::after { width: 100%; }

.site-header__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.site-header__burger span {
    width: 20px;
    height: 1px;
    background: var(--text-dark);
    transition: all var(--transition);
}

/* Mobile nav */
@media (max-width: 768px) {
    .site-header__nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: var(--space-lg);
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition);
    }

    .site-header__nav.is-open {
        opacity: 1;
        pointer-events: all;
    }

    .site-header__link {
        font-size: 1rem;
        letter-spacing: 0.2em;
    }

    .site-header__burger { display: flex; }
}


/* ═══════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-family: var(--font-body);
    font-weight: 400;
    transition: all var(--transition);
    border: 1px solid var(--text-dark);
    color: var(--text-dark);
    background: transparent;
}

.btn:hover {
    background: var(--text-dark);
    color: var(--white);
}

.btn--filled {
    background: var(--text-dark);
    color: var(--white);
}

.btn--filled:hover {
    background: var(--black);
}

.btn--ghost {
    border-color: var(--mid-gray);
    color: var(--text-gray);
}

.btn--ghost:hover {
    border-color: var(--text-dark);
    color: var(--text-dark);
    background: transparent;
}

.btn--sm {
    padding: 10px 20px;
    font-size: 0.65rem;
}


/* ═══════════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════════ */

.card {
    background: var(--white);
    border: 1px solid rgba(0,0,0,0.04);
    transition: all var(--transition);
}

.card:hover {
    box-shadow: 0 8px 32px rgba(0,0,0,0.06);
    transform: translateY(-2px);
}

.card__img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    background: var(--cream);
}

.card__img-placeholder {
    width: 100%;
    aspect-ratio: 1;
    background: #f2f2f2;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--mid-gray);
    font-style: normal;
}

.card__body { padding: var(--space-sm) var(--space-md) var(--space-md); }

.card__title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: 4px;
}

.card__sub {
    font-size: 0.8rem;
    color: var(--text-gray);
    font-weight: 300;
}

/* Grid */
.grid {
    display: grid;
    gap: var(--space-md);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid--4 { grid-template-columns: repeat(2, 1fr); }
    .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .grid--4, .grid--3, .grid--2 { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════
   PAGE SECTIONS
   ═══════════════════════════════════════════════ */

.page-hero {
    padding: calc(64px + var(--space-xl)) 0 var(--space-lg);
    text-align: center;
}

.page-hero__title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 300;
    margin-bottom: var(--space-xs);
}

.page-hero__sub {
    font-size: 0.85rem;
    color: var(--text-gray);
    font-weight: 300;
    max-width: 500px;
    margin: 0 auto;
}

.divider {
    width: 40px;
    height: 1px;
    background: var(--light-gray);
    margin: var(--space-lg) auto;
}

/* ─── Artwork detail ─── */

.artwork-detail {
    padding: calc(64px + var(--space-lg)) 0 var(--space-xl);
}

.artwork-detail__image {
    max-width: 700px;
    margin: 0 auto var(--space-lg);
    background: var(--white);
    padding: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06), 0 20px 50px rgba(0,0,0,0.04);
}

.artwork-detail__image img {
    width: 100%;
}

.artwork-detail__content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.artwork-detail__title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 300;
    margin-bottom: var(--space-xs);
}

.artwork-detail__phrase {
    font-family: var(--font-display);
    font-style: normal;
    color: var(--text-gray);
    margin-bottom: var(--space-md);
    font-size: 1.1rem;
}

.artwork-detail__text {
    color: var(--text-gray);
    font-weight: 300;
    line-height: 1.8;
}


/* ─── Package card ─── */

.pkg-card {
    background: var(--white);
    border: 1px solid rgba(0,0,0,0.04);
    padding: var(--space-lg);
    text-align: center;
    position: relative;
    transition: all var(--transition);
}

.pkg-card:hover {
    box-shadow: 0 12px 40px rgba(0,0,0,0.06);
    transform: translateY(-3px);
}

.pkg-card__badge {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    font-size: 0.6rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 4px 12px;
    background: var(--text-dark);
    color: var(--white);
}

.pkg-card__name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: var(--space-xs);
}

.pkg-card__desc {
    color: var(--text-gray);
    font-size: 0.85rem;
    font-weight: 300;
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.pkg-card__price {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: var(--space-md);
}

.pkg-card__price span {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.pkg-card__supports {
    list-style: none;
    margin-bottom: var(--space-md);
    font-size: 0.8rem;
    color: var(--text-gray);
}

.pkg-card__supports li {
    padding: 6px 0;
    border-bottom: 1px solid var(--cream);
}

.pkg-card__supports li:last-child { border: none; }

/* ─── Music list ─── */

.track-row {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--cream);
    transition: all var(--transition);
}

.track-row:hover { padding-left: var(--space-xs); }

.track-row__num {
    font-size: 0.75rem;
    color: var(--mid-gray);
    width: 30px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.track-row__cover {
    width: 48px;
    height: 48px;
    background: var(--cream);
    flex-shrink: 0;
}

.track-row__cover img { width: 100%; height: 100%; object-fit: cover; }

.track-row__info { flex: 1; }

.track-row__title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 400;
}

.track-row__duration {
    font-size: 0.75rem;
    color: var(--mid-gray);
}

.track-row__play {
    width: 36px;
    height: 36px;
    border: 1px solid var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-gray);
    transition: all var(--transition);
    flex-shrink: 0;
}

.track-row__play:hover {
    border-color: var(--text-dark);
    color: var(--text-dark);
}

.track-row__play svg { width: 14px; height: 14px; }


/* ─── About / Contact ─── */

.prose {
    max-width: 600px;
    margin: 0 auto;
    color: var(--text-gray);
    font-weight: 300;
    line-height: 1.9;
}

.prose p { margin-bottom: var(--space-md); }

.prose h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-dark);
    margin-bottom: var(--space-sm);
    margin-top: var(--space-lg);
}

.contact-info {
    text-align: center;
    padding: var(--space-lg) 0;
}

.contact-info a {
    color: var(--accent);
    border-bottom: 1px solid var(--accent-light);
    transition: border-color var(--transition);
}

.contact-info a:hover { border-color: var(--accent); }


/* ─── Footer ─── */

.site-footer {
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--cream);
    text-align: center;
}

.site-footer__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.site-footer__logo {
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--mid-gray);
    margin-bottom: var(--space-sm);
}

.site-footer__links {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
}

.site-footer__links a {
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--mid-gray);
    transition: color var(--transition);
}

.site-footer__links a:hover { color: var(--text-dark); }

.site-footer__copy {
    font-size: 0.7rem;
    color: var(--mid-gray);
}


/* ─── Global audio player (sticky bottom) ─── */

.audio-player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--cream);
    padding: 12px var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transform: translateY(100%);
    transition: transform var(--transition);
}

.audio-player.is-visible { transform: translateY(0); }

.audio-player__btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-gray);
    flex-shrink: 0;
    transition: all var(--transition);
}

.audio-player__btn:hover { border-color: var(--text-dark); color: var(--text-dark); }
.audio-player__btn svg { width: 14px; height: 14px; }

.audio-player__info {
    flex: 1;
    min-width: 0;
}

.audio-player__title {
    font-family: var(--font-display);
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.audio-player__progress {
    width: 100%;
    height: 2px;
    background: var(--light-gray);
    border-radius: 1px;
    margin-top: 6px;
    cursor: pointer;
    position: relative;
}

.audio-player__progress-bar {
    height: 100%;
    background: var(--accent);
    border-radius: 1px;
    width: 0%;
    transition: width 0.1s linear;
}

.audio-player__time {
    font-size: 0.7rem;
    color: var(--mid-gray);
    font-variant-numeric: tabular-nums;
    flex-shrink: 0;
}

.audio-player__volume {
    width: 60px;
    height: 2px;
    background: var(--light-gray);
    border-radius: 1px;
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
}

.audio-player__volume-bar {
    height: 100%;
    background: var(--accent);
    border-radius: 1px;
    width: 80%;
}

@media (max-width: 640px) {
    .audio-player__volume { display: none; }
    .audio-player__time { display: none; }
}


/* ─── Empty states ─── */

.empty-state {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
}

.empty-state__icon {
    font-size: 3rem;
    color: var(--light-gray);
    margin-bottom: var(--space-sm);
}

.empty-state__text {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 300;
    font-style: normal;
    color: var(--mid-gray);
}


/* ═══════════════════════════════════════════════
   LOADING / TRANSITIONS
   ═══════════════════════════════════════════════ */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.loading-screen {
    position: fixed;
    inset: 0;
    background: var(--white);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease;
}

.loading-screen.is-done {
    opacity: 0;
    pointer-events: none;
}

.loading-screen__text {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--mid-gray);
    animation: pulse 2s ease infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}