/* ============================================================
   CORE — reset, variables, base, nav, page wrapper
   Loaded by all pages
   ============================================================ */

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

:root {
    --color-black: #000000;
    --color-white: #ffffff;
    --color-gray-dark: #1a1a1a;
    --color-gray-medium: #333333;
    --color-gray-light: #666666;
    --color-text-primary: #ffffff;
    --color-text-secondary: #cccccc;
    --color-accent: rgba(255, 255, 255, 0.1);
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Playfair Display', serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --border-radius: 8px;
    --transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-black);
    margin: 0;
    padding: 0;
}

body:has(.page-wrapper) {
    overflow-y: auto;
}

body:has(#webgl-canvas) {
    overflow: hidden;
}

/* WebGL canvas — homepage only */
#webgl-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* ---- Top-left name title ---- */
.top-left-title {
    position: fixed;
    top: 2rem;
    left: 2rem;
    z-index: 10;
    pointer-events: none;
}

.top-left-title a {
    pointer-events: auto;
}

.hero-title {
    font-family: var(--font-primary);
    font-size: 1.1rem;
    font-weight: 400;
    margin: 0;
    color: var(--color-white);
    letter-spacing: 0.5px;
}

/* ---- Top nav ---- */
.top-nav {
    position: fixed;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 3rem;
    z-index: 20;
    pointer-events: none;
}

.top-nav a {
    color: var(--color-white);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    transition: opacity 0.3s ease;
    pointer-events: auto;
}

.top-nav a:hover {
    opacity: 0.7;
}

/* ---- Page wrapper (all content pages) ---- */
.page-wrapper {
    min-height: 100vh;
    background-color: var(--color-black);
}

.content-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 8rem 2rem 4rem;
}

.page-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 3rem;
    text-align: center;
}

/* ---- Shared section title ---- */
.section-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    color: var(--color-white);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 1px;
    background: rgba(255, 255, 255, 0.3);
}

/* ---- Shared container ---- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 10;
}

/* ---- Floating Spotify soundtrack player (hidden unless configured) ---- */
.soundtrack-player {
    position: fixed;
    right: 1.6rem;
    top: 5rem;
    width: 300px;
    z-index: 30;
    opacity: 0.92;
    transition: opacity 0.3s ease;
}

.soundtrack-player:hover { opacity: 1; }

@media (max-width: 768px) {
    .soundtrack-player {
        width: min(300px, calc(100vw - 2rem));
        right: 1rem;
        top: 4.2rem;
    }
}

/* YouTube audio pill */
.soundtrack-bar {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(18, 18, 18, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 999px;
    padding: 0.4rem 0.9rem 0.4rem 0.5rem;
    backdrop-filter: blur(6px);
}

.soundtrack-bar button {
    background: transparent;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 0.8rem;
    line-height: 1;
    padding: 0.45rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s ease;
}

.soundtrack-bar button:hover { background: rgba(255, 255, 255, 0.12); }

.soundtrack-bar .st-play {
    width: 2rem;
    height: 2rem;
    background: #fff;
    color: #111;
}

.soundtrack-bar .st-play:hover { background: #e8e8e8; }

.soundtrack-bar .st-title {
    flex: 1;
    min-width: 0;
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    color: rgba(255, 255, 255, 0.85);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.soundtrack-video {
    margin-top: 0.5rem;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    max-height: 200px;
    opacity: 1;
}

.soundtrack-video.collapsed {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
}