:root {
    --primary: #6366f1;
    --bg: #f4f5fb;
    --card-bg: #ffffff;
    --text: #1f2333;
    --muted: #6b7280;
    --border: #e6e8f0;
    --success: #22c55e;
    --danger: #ef4444;
    --radius: 14px;
    --shadow: 0 6px 24px rgba(30, 30, 60, .08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Vazirmatn', Tahoma, sans-serif;
    background: linear-gradient(180deg, #f7f7ff 0%, #f2f3fb 100%);
    color: var(--text);
    direction: rtl;
    text-align: right;
}

a { color: inherit; text-decoration: none; }

/* ---------- Header ---------- */
.topbar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}
.topbar-inner {
    max-width: 1180px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    flex-wrap: wrap;
    gap: 10px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; }
.brand-logo { height: 38px; width: auto; border-radius: 8px; }
.topnav { display: flex; gap: 8px; }
.topnav a {
    padding: 8px 14px;
    border-radius: 10px;
    font-weight: 600;
    color: var(--muted);
    transition: .15s;
}
.topnav a:hover { background: var(--bg); color: var(--primary); }

/* ---------- Layout ---------- */
.page-container { max-width: 1180px; margin: 0 auto; padding: 26px 20px 60px; }

.page-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; margin-bottom: 22px; }
.page-head h1 { font-size: 24px; margin: 0; }
.muted { color: var(--muted); }

/* ---------- Cards ---------- */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    padding: 20px;
}

/* ---------- Date navigation ---------- */
.date-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 14px 20px;
    margin-bottom: 24px;
}
.date-nav .current-date { font-weight: 700; font-size: 17px; min-width: 260px; text-align: center; }
.nav-btn {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px 16px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    font-size: 14px;
}
.nav-btn:hover { background: #eceefc; }

/* ---------- Rooms grid / schedule ---------- */
.rooms-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }

.room-card {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    background: var(--card-bg);
    border: 1px solid var(--border);
}
.room-card-head {
    padding: 16px 18px;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.room-card-head h3 { margin: 0; font-size: 17px; }
.room-card-head .cap { font-size: 12px; opacity: .9; background: rgba(255,255,255,.2); padding: 3px 10px; border-radius: 20px; }
.room-card-body { padding: 14px 16px; display: flex; flex-direction: column; gap: 8px; }

.slot-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 12px;
    border-radius: 10px;
    background: var(--bg);
    font-size: 14px;
}
.slot-row.taken { background: #fff1f1; color: #b91c1c; }
.slot-row.free { cursor: pointer; transition: .15s; }
.slot-row.free:hover { background: #eef0ff; }
.slot-time { font-weight: 700; }
.slot-badge { font-size: 12px; padding: 3px 10px; border-radius: 20px; font-weight: 600; }
.slot-badge.free { background: #dcfce7; color: #15803d; }
.slot-badge.taken { background: #fee2e2; color: #b91c1c; }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 14px; }
input[type=text], input[type=email], input[type=tel], input[type=password],
input[type=number], input[type=date], input[type=file], select, textarea {
    width: 100%;
    padding: 10px 13px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: inherit;
    font-size: 14px;
    background: #fff;
    color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,.15); }
textarea { min-height: 90px; resize: vertical; }

input[type=color] { width: 60px; height: 40px; padding: 3px; border-radius: 10px; border: 1px solid var(--border); cursor: pointer; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 22px;
    border-radius: 10px;
    border: none;
    font-family: inherit;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    background: var(--primary);
    color: #fff;
    transition: .15s;
}
.btn:hover { filter: brightness(.92); }
.btn.secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn.danger { background: var(--danger); }
.btn.sm { padding: 6px 14px; font-size: 13px; }

/* ---------- Tables ---------- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: right; }
th { color: var(--muted); font-weight: 700; background: var(--bg); }
tr:hover td { background: #fafbff; }

/* ---------- Color badges ---------- */
.color-dot { display: inline-block; width: 14px; height: 14px; border-radius: 50%; vertical-align: middle; margin-left: 6px; }

/* ---------- Alerts ---------- */
.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 18px; font-weight: 600; font-size: 14px; }
.alert.success { background: #dcfce7; color: #15803d; }
.alert.error { background: #fee2e2; color: #b91c1c; }
.alert.info { background: #e0e7ff; color: #4338ca; }

/* ---------- Admin layout ---------- */
.admin-layout { display: grid; grid-template-columns: 220px 1fr; gap: 22px; align-items: start; }
.admin-sidebar { background: var(--card-bg); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); padding: 14px; position: sticky; top: 80px; }
.admin-sidebar a { display: block; padding: 10px 14px; border-radius: 10px; font-weight: 600; margin-bottom: 4px; color: var(--muted); }
.admin-sidebar a.active, .admin-sidebar a:hover { background: var(--bg); color: var(--primary); }
.admin-main { min-width: 0; }

@media (max-width: 820px) {
    .admin-layout { grid-template-columns: 1fr; }
    .admin-sidebar { position: static; display: flex; flex-wrap: wrap; gap: 6px; }
    .admin-sidebar a { margin-bottom: 0; }
}

/* ---------- Login ---------- */
.login-wrap { max-width: 380px; margin: 60px auto; }
.login-wrap .card { text-align: center; }

/* ---------- Footer ---------- */
.footer { margin-top: 40px; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1180px; margin: 0 auto; padding: 18px 20px; display: flex; justify-content: space-between; color: var(--muted); font-size: 13px; flex-wrap: wrap; gap: 6px; }

/* ---------- Grid helpers ---------- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 700px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

.section-title { font-size: 16px; font-weight: 800; margin: 26px 0 12px; }
.hint { font-size: 12px; color: var(--muted); margin-top: 4px; }