/* ==========================================================================
   playnova_nebula — Core Design Tokens (Nebula Glass)
   Deep-space immersive UI — opposite of original Neo-Brutalist magazine style
   ========================================================================== */

:root {
    /* Color palette — cosmic glass */
    --color-bg: #070b14;
    --color-bg-elevated: #0f1629;
    --color-surface: rgba(255, 255, 255, 0.06);
    --color-surface-hover: rgba(255, 255, 255, 0.1);
    --color-text: #e8ecf4;
    --color-text-muted: #8b95a8;
    --color-primary: #7c5cff;
    --color-secondary: #00e5cc;
    --color-accent: #ff6b9d;
    --color-border: rgba(255, 255, 255, 0.12);
    --color-glow-primary: rgba(124, 92, 255, 0.45);
    --color-glow-secondary: rgba(0, 229, 204, 0.35);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;

    /* Shape & depth */
    --border-width: 1px;
    --border-radius-sm: 10px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px var(--color-glow-primary);

    /* Typography */
    --font-display: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-body: 'Segoe UI', system-ui, -apple-system, sans-serif;

    /* Motion */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --duration-fast: 0.2s;
    --duration-normal: 0.35s;
}

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

html,
body {
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
}

body {
    background-color: var(--color-bg);
    background-image:
        linear-gradient(180deg, rgba(7, 11, 20, 0.88) 0%, rgba(7, 11, 20, 0.94) 45%, rgba(7, 11, 20, 0.98) 100%),
        radial-gradient(ellipse 80% 50% at 20% -10%, rgba(124, 92, 255, 0.18), transparent),
        radial-gradient(ellipse 60% 40% at 90% 10%, rgba(0, 229, 204, 0.1), transparent),
        url('../assets/images/bg-nebula.jpg');
    background-size: auto, auto, auto, cover;
    background-position: center top, 20% -10%, 90% 10%, center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--color-text);
    font-family: var(--font-body);
    line-height: 1.65;
    min-height: 100vh;
}

img {
    max-width: 100%;
    display: block;
    border-radius: var(--border-radius-sm);
    border: var(--border-width) solid var(--color-border);
}

a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
    color: var(--color-accent);
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* Utilities */
.container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.text-display {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.text-bold {
    font-weight: 600;
}

.bg-primary {
    background: linear-gradient(135deg, var(--color-primary), #5a3fd4);
    color: #fff;
}

.bg-secondary {
    background: linear-gradient(135deg, var(--color-secondary), #00b8a3);
    color: #070b14;
}

.bg-accent {
    background: linear-gradient(135deg, var(--color-accent), #e84d7a);
    color: #fff;
}

/* Glass panel utility */
.glass-panel {
    background: var(--color-surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-soft);
}

/* Page fade-in */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeUp var(--duration-normal) var(--ease-out) both;
}