/* ===== Base / Shared styles ===== */

:root {
    --bg: #0a0e1a;
    --bg-elevated: #141a2e;
    --bg-card: #1a2138;
    --border: #2a3252;
    --text: #e8ecf4;
    --text-muted: #8a93a8;
    --accent: #00ff9d;
    --accent-hover: #00d683;
    --accent-glow: rgba(0, 255, 157, 0.15);
    --danger: #ff4757;
    --warning: #ffa502;
}

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

html, body {
    background-color: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'SF Pro Display', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    min-height: 100vh;
}

h1, h2, h3, h4 {
    color: var(--text);
    font-weight: 600;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(1.6rem, 5vw, 2.5rem);
    margin: 2rem 0 1rem;
    text-align: center;
}

h2 {
    font-size: clamp(1.3rem, 4vw, 1.8rem);
    margin: 1.5rem 0 1rem;
}

h3 {
    font-size: 1.3rem;
    margin: 1rem 0 0.5rem;
}

p {
    color: var(--text-muted);
    margin: 0.5rem 0;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.page-wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

@media (max-width: 480px) {
    .page-wrap {
        padding: 1rem;
    }
}

.page-wrap.narrow {
    max-width: 720px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin: 1rem 0;
}

button,
.btn {
    display: inline-block;
    background: var(--accent);
    color: var(--bg);
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

button:hover,
.btn:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
}

.btn-secondary:hover {
    background: var(--accent-glow);
}

input[type="text"],
input[type="number"],
input[type="email"],
select,
textarea {
    background: var(--bg-elevated);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s ease;
    width: 100%;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
}

/* ── Announcement banner ─────────────────────────────────────────────────── */
.announcement-banner {
    width: 100%;
    text-align: center;
    padding: 0.6rem 1.2rem;
    font-weight: 600;
    font-size: 0.92rem;
    /* default / normal type */
    background: var(--accent);
    color: var(--bg);
}

.announcement-banner.banner-warning {
    background: var(--warning);
    color: var(--bg);
}

.announcement-banner.banner-restart {
    background: var(--danger);
    color: #fff;
    animation: restart-pulse 1.5s ease-in-out infinite;
}

@keyframes restart-pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.82; }
}