/* ============================================
   Let's Run a Test — Shared Demo Page Styles
   ============================================
   Override CSS custom properties per page to
   set accent colors and page-specific theming.
   ============================================ */

/* --- Default Custom Properties --- */
:root {
    --accent: #667eea;
    --accent-dark: #764ba2;
    --accent-light: #667eea;
    --checkmark-color: var(--accent-light);
    --badge-bg: var(--accent);
    --badge-color: #fff;
    --btn-primary-color: #fff;
    --accent-shadow: rgba(102, 126, 234, 0.4);
    --container-max-width: 960px;
}

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

/* === Base === */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: #0f0f1a;
    color: #e0e0e0;
    line-height: 1.6;
}

/* === Page Header === */
.page-header {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    padding: 3rem 2rem;
    text-align: center;
}
.page-header h1 { font-size: 2.25rem; color: #fff; margin-bottom: 0.5rem; }
.page-header p {
    font-size: 1.05rem; color: rgba(255,255,255,0.85);
    max-width: 700px; margin: 0 auto;
}

/* === Breadcrumb === */
.breadcrumb {
    display: flex; gap: 0.5rem; justify-content: center;
    margin-top: 1rem; font-size: 0.85rem;
}
.breadcrumb a { color: rgba(255,255,255,0.7); text-decoration: none; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { color: rgba(255,255,255,0.4); }

/* === Badge === */
.badge {
    display: inline-block; font-size: 0.7rem; padding: 0.15rem 0.5rem;
    border-radius: 4px; margin-left: 0.5rem; font-weight: 600;
    text-transform: uppercase; vertical-align: middle;
    background: var(--badge-bg); color: var(--badge-color);
}

/* === Container === */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto; padding: 2rem 1.5rem 4rem;
}

/* === Section === */
.section {
    background: #1a1a2e; border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px; padding: 2rem; margin-bottom: 2rem;
}
.section h2 { font-size: 1.3rem; color: #fff; margin-bottom: 0.75rem; }
.section h3 {
    font-size: 0.8rem; color: #bbb; margin-bottom: 0.5rem;
    text-transform: uppercase; letter-spacing: 0.05em;
}
.section p { color: #999; font-size: 0.9rem; margin-bottom: 1rem; }

/* === Info Grid === */
.info-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 1rem; margin-bottom: 1.5rem;
}
.info-box { background: rgba(255,255,255,0.04); border-radius: 10px; padding: 1rem; }
.info-box h4 { font-size: 0.85rem; color: var(--accent-light); margin-bottom: 0.4rem; }
.info-box p { font-size: 0.82rem; color: #aaa; margin: 0; }
.info-box ul { list-style: none; padding: 0; }
.info-box ul li { font-size: 0.82rem; color: #aaa; padding: 0.2rem 0; }
.info-box ul li::before { content: "✓ "; color: var(--checkmark-color); }

/* === How It Works / Steps === */
.how-it-works {
    display: flex; gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap;
}
.step {
    flex: 1; min-width: 120px; background: rgba(255,255,255,0.04);
    border-radius: 10px; padding: 1rem; text-align: center; position: relative;
}
.step::after {
    content: "→"; position: absolute; right: -14px; top: 50%;
    transform: translateY(-50%); color: #555; font-size: 1.2rem;
}
.step:last-child::after { display: none; }
.step-num {
    width: 28px; height: 28px; border-radius: 50%;
    background: var(--accent); color: var(--btn-primary-color);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.8rem; font-weight: 700; margin: 0 auto 0.5rem;
}
.step-label { font-size: 0.78rem; color: #bbb; }

/* === Demo Area === */
.demo-area {
    background: #111125; border-radius: 12px; padding: 1.5rem;
    border: 1px solid rgba(255,255,255,0.06);
}
.demo-area h3 {
    font-size: 0.8rem; text-transform: uppercase;
    letter-spacing: 0.08em; color: #888; margin-bottom: 1rem;
}

/* === Stats Row === */
.stats-row {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem; margin: 1rem 0;
}
.stat {
    background: rgba(255,255,255,0.04); border-radius: 8px;
    padding: 0.75rem; text-align: center;
}
.stat .val { font-size: 1.3rem; font-weight: 700; color: #fff; }
.stat .lbl { font-size: 0.7rem; color: #888; text-transform: uppercase; }

/* === Buttons === */
.btn {
    border: none; color: #fff; padding: 0.6rem 1.3rem; border-radius: 8px;
    cursor: pointer; font-size: 0.88rem; font-weight: 600; transition: all 0.25s;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: var(--btn-primary-color);
}
.btn-primary:hover {
    box-shadow: 0 4px 15px var(--accent-shadow);
    transform: translateY(-1px);
}
.btn-secondary {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
}
.btn-secondary:hover { background: rgba(255,255,255,0.15); }
.btn-danger {
    background: rgba(239,68,68,0.2);
    border: 1px solid rgba(239,68,68,0.3); color: #ef4444;
}
.btn-danger:hover { background: rgba(239,68,68,0.3); }
.btn-success { background: linear-gradient(135deg, #10b981, #059669); }
.btn-success:hover {
    box-shadow: 0 4px 15px rgba(16,185,129,0.4);
    transform: translateY(-1px);
}
.btn-group { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }

/* === Event Log === */
.log {
    margin-top: 1rem; background: rgba(0,0,0,0.3); border-radius: 8px;
    padding: 0.75rem; max-height: 180px; overflow-y: auto;
    font-family: 'SF Mono', 'Fira Code', monospace; font-size: 0.78rem;
}
.log-entry {
    padding: 0.3rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.04); color: #999;
}
.log-entry:last-child { border-bottom: none; }
.log-entry .t { color: #4ade80; }
.log-entry .a { color: #fbbf24; }
.log-entry .w { color: #4ade80; font-weight: 700; }
.log-entry .l { color: #ef4444; }
.log-entry .i { color: #3b82f6; }

/* === Footer === */
footer {
    text-align: center; padding: 2rem; color: #555;
    font-size: 0.85rem; border-top: 1px solid rgba(255,255,255,0.05);
}
footer a { color: #667eea; text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* === Responsive === */
@media (max-width: 768px) {
    .info-grid { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .how-it-works { flex-direction: column; }
    .step::after {
        content: "↓"; right: auto; bottom: -14px; top: auto;
        left: 50%; transform: translateX(-50%);
    }
}