:root {
    --navy: #1b2b3a;
    --teal: #1f7a6c;
    --teal-dark: #16594f;
    --bg: #f4f6f7;
    --card: #ffffff;
    --border: #dde3e6;
    --text: #202a30;
    --text-muted: #6b7a82;
    --red: #b0413e;
    --amber: #b8862f;
    --green: #2f8f5b;
    --radius: 6px;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
}

/* ---------- Auth pages ---------- */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--navy);
}
.auth-box {
    background: var(--card);
    padding: 36px 32px;
    border-radius: var(--radius);
    width: 100%;
    max-width: 360px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
.auth-box h1 { font-size: 18px; margin: 0 0 4px; color: var(--teal-dark); }
.auth-box h2 { font-size: 15px; margin: 0 0 20px; color: var(--text-muted); font-weight: 500; }

/* ---------- Layout ---------- */
.topbar {
    background: var(--navy);
    color: #fff;
    display: flex;
    align-items: center;
    padding: 10px 20px;
    min-height: 56px;
    gap: 16px;
    flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 15px; }
.topbar nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.topbar nav a {
    color: #cfd8dc;
    text-decoration: none;
    padding: 8px 12px;
    border-radius: var(--radius);
    font-size: 14px;
    white-space: nowrap;
}
.topbar nav a:hover, .topbar nav a.active { background: rgba(255,255,255,0.12); color: #fff; }
.user-info { font-size: 13px; color: #b5c0c6; white-space: nowrap; }
.user-info a { color: #fff; }

@media (max-width: 700px) {
    .topbar { flex-direction: column; align-items: stretch; gap: 8px; padding: 12px 16px; }
    .topbar nav { justify-content: flex-start; gap: 2px; }
    .topbar nav a { padding: 6px 8px; font-size: 13px; }
    .user-info { text-align: left; }
}

.container { max-width: 1100px; margin: 24px auto; padding: 0 20px; }
@media (max-width: 700px) {
    .container { margin: 16px auto; padding: 0 14px; }
    .page-head { flex-direction: column; align-items: stretch; }
    .page-head .btn { text-align: center; }
}

/* ---------- Forms ---------- */
form label {
    display: block;
    margin-bottom: 14px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
}
form input, form select, form textarea {
    display: block;
    width: 100%;
    margin-top: 5px;
    padding: 9px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
}
form textarea { resize: vertical; min-height: 70px; }
button, .btn {
    background: var(--teal);
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}
button:hover, .btn:hover { background: var(--teal-dark); }
.btn-secondary { background: #fff; color: var(--teal-dark); border: 1px solid var(--teal); }
.btn-secondary:hover { background: #eef7f5; }

.error { color: var(--red); font-size: 13px; margin-bottom: 12px; }
.success { color: var(--green); font-size: 13px; margin-bottom: 12px; }

/* ---------- Cards / dashboard ---------- */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    margin-bottom: 20px;
}
.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 800px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

.stat-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; }
.stat-value { font-size: 24px; font-weight: 700; margin-top: 4px; }
.stat-value.pos { color: var(--green); }
.stat-value.neg { color: var(--red); }

h1.page-title { font-size: 20px; margin: 0 0 4px; }
.page-sub { color: var(--text-muted); font-size: 13px; margin-bottom: 20px; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 12px; }

/* ---------- Table ---------- */
table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: var(--radius); overflow: hidden; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13.5px; }
th { background: #eef2f3; color: var(--text-muted); font-weight: 600; text-transform: uppercase; font-size: 11.5px; letter-spacing: 0.03em; }
tr:hover td { background: #fafcfc; }

.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 11.5px; font-weight: 600; }
.badge-pending { background: #fdecd2; color: var(--amber); }
.badge-in_progress { background: #dcedff; color: #2563a8; }
.badge-waiting_parts { background: #f3e3ff; color: #7c3fae; }
.badge-completed { background: #d9f2e3; color: var(--green); }
.badge-delivered { background: #d3ede8; color: var(--teal-dark); }
.badge-cancelled { background: #f5d9d8; color: var(--red); }

.form-row { display: flex; gap: 16px; }
.form-row > * { flex: 1; }