:root {
    --bg: #f4f7fb;
    --panel: #ffffff;
    --text: #17324d;
    --muted: #61758a;
    --primary: #0a7d62;
    --primary-dark: #075a47;
    --danger: #b53b3b;
    --border: #d6e0ea;
    --shadow: 0 14px 32px rgba(23, 50, 77, 0.08);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: linear-gradient(180deg, #f9fbfd 0%, var(--bg) 100%);
    color: var(--text);
}

a { color: inherit; text-decoration: none; }
.container { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }
.site-header {
    position: sticky; top: 0; z-index: 20;
    background: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
}
.nav-wrap { display: flex; justify-content: space-between; align-items: center; padding: 1rem 0; }
.brand { font-size: 1.4rem; font-weight: 700; color: var(--primary); }
nav { display: flex; gap: 1rem; flex-wrap: wrap; }
nav a { color: var(--muted); font-weight: 600; }
.page-content { padding: 2rem 0 4rem; }
.hero {
    display: grid; grid-template-columns: 2fr 1fr; gap: 1.5rem; align-items: stretch;
    margin-bottom: 2rem;
}
.hero > div, .stats-card, .card, .form-card, .table-wrap {
    background: var(--panel); border: 1px solid var(--border); border-radius: 22px; box-shadow: var(--shadow);
}
.hero > div:first-child { padding: 2rem; }
.eyebrow { color: var(--primary); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
.hero h1 { font-size: clamp(2rem, 3vw, 3.4rem); line-height: 1.1; margin: 0.5rem 0 1rem; }
.lead { color: var(--muted); max-width: 50ch; }
.hero-actions, .action-row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.stats-card { padding: 1.5rem; display: grid; gap: 1rem; }
.stat { padding: 1rem; border-radius: 16px; background: #f6faf8; border: 1px solid #d9ebe5; }
.stat strong { display: block; font-size: 1.5rem; margin-bottom: 0.25rem; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.card { padding: 1.25rem; }
.button {
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 12px; border: none; cursor: pointer; font-weight: 700;
    padding: 0.85rem 1.1rem;
}
.button.small { padding: 0.55rem 0.8rem; font-size: 0.9rem; }
.primary { background: var(--primary); color: white; }
.primary:hover { background: var(--primary-dark); }
.secondary { background: #eef4f9; color: var(--text); }
.danger { background: #fdecec; color: var(--danger); }
.form-card { padding: 2rem; max-width: 820px; margin: 0 auto; }
.form-card.narrow { max-width: 560px; }
.stack { display: grid; gap: 1rem; }
.two-columns { grid-template-columns: repeat(2, 1fr); }
.two-columns .full { grid-column: 1 / -1; }
label { display: grid; gap: 0.45rem; font-weight: 700; }
input, select {
    width: 100%; padding: 0.85rem 0.95rem; border-radius: 12px;
    border: 1px solid var(--border); background: white; font: inherit;
}
.table-wrap { overflow-x: auto; padding: 1rem; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.9rem 0.75rem; border-bottom: 1px solid var(--border); text-align: left; }
th { color: var(--muted); font-size: 0.92rem; }
.badge {
    display: inline-block; border-radius: 999px; padding: 0.3rem 0.7rem;
    font-size: 0.86rem; font-weight: 700; background: #eef4f9; color: var(--text);
}
.badge.available, .badge.completed { background: #e6f7f1; color: #0b7259; }
.badge.in_use, .badge.active { background: #fff4df; color: #9b6b00; }
.badge.maintenance { background: #fdecec; color: var(--danger); }
.flash-list { display: grid; gap: 0.7rem; margin-bottom: 1rem; }
.flash {
    padding: 0.95rem 1rem; border-radius: 14px; font-weight: 700;
    border: 1px solid var(--border); background: white;
}
.flash.success { background: #eaf8f3; border-color: #cbe8dd; }
.flash.error { background: #fff0f0; border-color: #f2d3d3; }
.section-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.token-box, .code-block {
    margin-top: 1rem; padding: 1rem; border-radius: 14px; background: #0f1d2b; color: #f3f7fb; overflow-x: auto;
}
@media (max-width: 900px) {
    .hero, .card-grid, .two-columns { grid-template-columns: 1fr; }
    .section-head { flex-direction: column; align-items: flex-start; }
}