/*
 * common.css — Общие стили тёмно-золотой темы «Ясна Вижу»
 * Reset, body, particles, header, profile, bottom-nav, утилиты.
 * Design tokens (:root) live in tokens.css — load it BEFORE this file.
 */

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-font-smoothing: antialiased; }

body {
    background-color: var(--bg-deep);
    background-image:
        radial-gradient(ellipse at 50% 0%, rgba(30, 30, 80, 0.35) 0%, transparent 55%),
        radial-gradient(ellipse at 50% 100%, rgba(20, 20, 50, 0.25) 0%, transparent 45%);
    min-height: 100vh;
    width: 100vw;
    overflow-x: hidden;
    overflow-y: auto;
    font-family: var(--font-body);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-light);
}

/* ── Particles ── */
.particles { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.particle {
    position: absolute; width: 2px; height: 2px;
    background: var(--gold); border-radius: 50%; opacity: 0;
    animation: float-up 6s infinite;
}
@keyframes float-up {
    0%, 100% { opacity: 0; transform: translateY(0); }
    15% { opacity: 0.4; }
    85% { opacity: 0.2; }
    100% { opacity: 0; transform: translateY(-120px); }
}

/* ── Header ── */
header {
    width: 100%; max-width: var(--container);
    padding: clamp(12px, 2.5vh, 20px) clamp(24px, 6vw, 40px) 0;
    display: flex; justify-content: space-between; align-items: center;
    z-index: 10;
}
.back-link {
    display: inline-flex; align-items: center; gap: 6px;
    font-family: var(--font-body); font-weight: 400;
    font-size: clamp(13px, 3.1vw, 14px);
    color: var(--gold-dim); text-decoration: none;
    transition: color 0.3s ease;
}
.back-link:hover { color: var(--gold); }
.back-link svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 2; fill: none; }

/* ── Profile Button ── */
.profile-btn {
    width: 40px; height: 40px; border-radius: 50%;
    border: 1px solid var(--gold-border);
    background: rgba(var(--gold-rgb), 0.06);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: var(--transition); text-decoration: none;
}
.profile-btn:hover {
    background: rgba(var(--gold-rgb), 0.12);
    border-color: var(--gold-border-active);
}
.profile-btn svg {
    width: 18px; height: 18px;
    stroke: var(--gold); stroke-width: 1.5; fill: none; opacity: 0.7;
}

/* ── Bottom Nav ── */
.bottom-nav {
    width: 100%;
    padding: clamp(14px, 2.5vh, 20px) clamp(16px, 5vw, 30px);
    margin-top: clamp(16px, 3vh, 24px);
    border-top: 1px solid var(--gold-border);
    z-index: 10;
}
.nav-links {
    display: flex; justify-content: center;
    flex-wrap: wrap; gap: 0;
}
.nav-link {
    font-family: var(--font-body); font-weight: 400;
    font-size: clamp(12px, 2.7vw, 13px);
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--text-dim); opacity: 0.6;
    text-decoration: none;
    padding: clamp(6px, 1.5vh, 10px) clamp(8px, 2.5vw, 14px);
    transition: var(--transition); position: relative;
}
.nav-link:hover { opacity: 0.9; }
.nav-link.active { opacity: 1; color: var(--text-light); }
.nav-link.active::after {
    content: ''; position: absolute;
    bottom: 4px; left: 50%; transform: translateX(-50%);
    width: 3px; height: 3px;
    background: var(--gold); border-radius: 50%;
}
.nav-sep {
    font-size: 8px; opacity: 0.25;
    display: flex; align-items: center;
    padding: 0 2px; user-select: none; color: var(--gold);
}

/* ── Animations ── */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ── Utilities ── */
.hidden { display: none !important; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}