/* Màu lấy từ logo SCVINA: xanh dương của chữ S và chữ SCVINA, xanh lá của vệt cong */
:root {
    --ink: #1c2b39;
    --muted: #627384;
    --line: #d9e3ec;
    --bg: #f2f6fa;
    --panel: #ffffff;
    --brand: #21689c;
    --brand-bright: #007cba;
    --brand-green: #3ea24c;
    --accent: #1272b0;
    --accent-dark: #0f5f94;
    --tint: #eaf3fa;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
    margin: 0;
    font: 14px/1.5 "Segoe UI", Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 0 0 12px; color: var(--brand); }
h2 { font-size: 16px; margin: 28px 0 10px; color: var(--brand); }
h3 { font-size: 14px; margin: 0 0 12px; }
small { font-size: 12px; }
.muted { color: var(--muted); }
.nowrap { white-space: nowrap; }
.num { text-align: right; }

/* Thanh trên cùng */
.topbar {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
    padding: 0 24px;
    min-height: 60px;
    background: var(--panel);
    border-bottom: 1px solid var(--line);
    position: relative;
}
/* Dải màu thương hiệu chạy dọc mép trên */
.topbar::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brand) 0%, var(--brand-bright) 60%, var(--brand-green) 100%);
}
.brand { display: flex; align-items: center; gap: 8px; }
.brand img { height: 38px; width: auto; display: block; }
.brand-name { font-weight: 700; font-size: 18px; letter-spacing: .08em; color: var(--brand); }
.brand-sub { font-size: 15px; color: var(--brand-green); font-weight: 600; }
.brand:hover { text-decoration: none; }
.topbar nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.topbar nav a { padding: 19px 12px 17px; color: var(--ink); border-bottom: 3px solid transparent; }
.topbar nav a:hover { text-decoration: none; color: var(--accent); }
.topbar nav a.active { border-bottom-color: var(--brand-green); color: var(--brand); font-weight: 600; }

/* Trang đăng nhập / thiết lập: ẩn thanh trên, logo đầy đủ đặt giữa */
body.guest { background: linear-gradient(160deg, #e6f1f9 0%, #f2f6fa 45%, #e9f5ea 100%) fixed; min-height: 100vh; }
.guest .topbar { display: none; }
.hero-logo { display: block; width: 190px; height: auto; margin: 0 auto 18px; border-radius: 12px; mix-blend-mode: multiply; }
.guest .card { box-shadow: 0 8px 28px rgba(33, 104, 156, .12); border-top: 3px solid var(--brand); padding: 24px 26px; }
.guest .card h1 { color: var(--brand); }
.guest .btn.primary { width: 100%; padding: 9px 14px; }
.login-help { margin: 18px 0 0; padding-top: 14px; border-top: 1px solid var(--line); text-align: center; font-size: 13px; color: var(--muted); }
.account { display: flex; align-items: center; gap: 14px; }
.account form { margin: 0; }
.who small { display: block; color: var(--muted); line-height: 1.1; }

main { max-width: 1240px; margin: 0 auto; padding: 24px; }
main.narrow { max-width: 440px; padding-top: 60px; }

.page-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.page-head h1 { margin: 0; }
.crumb { margin: 0 0 8px; }

.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 18px 20px;
    margin-bottom: 14px;
}
.form-card { max-width: 480px; }
.form-card.wide { max-width: 860px; }

.flash, .notice, .errors {
    border-radius: 6px;
    padding: 10px 14px;
    margin: 0 0 16px;
}
.flash { background: #e6f4ea; border: 1px solid #b7dfc2; color: #1e5c31; }
.notice { background: #fff6e0; border: 1px solid #f0d58a; color: #6b4e00; margin-top: 8px; }
.errors { background: #fdecec; border: 1px solid #f3b9b9; color: #8f1d1d; }
.errors ul { margin: 0; padding-left: 18px; }
.validation-summary-valid { display: none; }

/* Form */
.field { margin-bottom: 14px; flex: 1; min-width: 0; }
.field.narrow { flex: 0 0 180px; }
.field label { display: block; font-weight: 600; margin-bottom: 4px; }
.row { display: flex; gap: 16px; flex-wrap: wrap; }
.row .field { min-width: 160px; }

input[type=text], input[type=password], input[type=date], input[type=number], select, textarea {
    width: 100%;
    padding: 7px 9px;
    font: inherit;
    color: inherit;
    background: #fff;
    border: 1px solid #c5ced8;
    border-radius: 4px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid #b9d2f5; border-color: var(--accent); }
textarea { resize: vertical; }
.check { display: inline-flex; align-items: center; gap: 6px; font-weight: 400; }

.actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.btn {
    display: inline-block;
    padding: 7px 14px;
    font: inherit;
    color: var(--ink);
    background: #fff;
    border: 1px solid #c5ced8;
    border-radius: 4px;
    cursor: pointer;
}
.btn:hover { background: #f0f3f7; text-decoration: none; }
.btn.primary { color: #fff; background: linear-gradient(135deg, var(--brand) 0%, var(--brand-bright) 100%); border-color: var(--accent); }
.btn.primary:hover { background: var(--accent-dark); }
.btn.block { display: block; width: 100%; text-align: center; margin-top: 8px; }
button.link { padding: 0; font: inherit; color: var(--accent); background: none; border: 0; cursor: pointer; }
button.link:hover { text-decoration: underline; }
button.link.danger { color: #b3261e; }
form.inline { display: inline; margin: 0; }

.filters { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.filters select, .filters input[type=text] { width: auto; min-width: 180px; }

/* Bảng */
table.grid {
    width: 100%;
    border-collapse: collapse;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 6px;
}
.grid th, .grid td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.grid th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--brand); background: var(--tint); }
.grid th.num, .grid td.num { text-align: right; }
.grid tbody tr:last-child td { border-bottom: 0; }
.grid tbody tr:hover { background: #f9fbfe; }
.grid tr.inactive td { color: var(--muted); }
.pager { display: flex; align-items: center; gap: 10px; margin-top: 12px; }

/* Nhãn */
.badge {
    display: inline-block;
    padding: 1px 8px;
    font-size: 12px;
    border-radius: 10px;
    background: #e8ecf1;
    color: #3c4857;
    white-space: nowrap;
}
.badge.big { font-size: 13px; padding: 4px 12px; }
.status-1 { background: #dbe9ff; color: #174c99; }
.status-2 { background: #fff0cc; color: #7a5600; }
.status-3 { background: #f1e3ff; color: #5b2a91; }
.status-4 { background: #d9f2e1; color: #1e5c31; }
.status-5 { background: #e8ecf1; color: #55606d; }
.status-6 { background: #fbdcdc; color: #8f1d1d; }
.phase-1 { background: #dbe9ff; color: #174c99; }
.phase-2 { background: #d9f2e1; color: #1e5c31; }
.phase-3 { background: #d6f0f2; color: #14585f; }
.phase-4 { background: #fbdcdc; color: #8f1d1d; }
.badge.fee { background: #ffe2c7; color: #8a3d00; }
.prio-3 { color: #b45309; font-weight: 600; }
.prio-4 { color: #b3261e; font-weight: 700; }

/* Tổng quan */
.stats { display: flex; gap: 12px; flex-wrap: wrap; }
.stat {
    flex: 1;
    min-width: 140px;
    padding: 14px 16px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--ink);
}
.stat { border-left: 3px solid var(--brand-bright); }
.stat:hover { text-decoration: none; border-color: var(--accent); }
.stat strong { display: block; font-size: 26px; line-height: 1.2; color: var(--brand); }
.stat.warn { border-left-color: #e08a2c; }
.stat span { color: var(--muted); }
.stat.warn strong { color: #8a3d00; }

/* Chi tiết yêu cầu */
.split { display: flex; gap: 20px; align-items: flex-start; }
.main-col { flex: 1; min-width: 0; }
.side-col { flex: 0 0 300px; }
.meta { color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.body { white-space: pre-wrap; word-wrap: break-word; }
.comment.from-staff { border-left: 3px solid var(--accent); }
.comment.internal { background: #fffaf0; border-left: 3px solid #e0a030; }
.log { padding: 4px 0 12px 14px; margin-left: 6px; border-left: 2px solid var(--line); color: var(--muted); font-size: 13px; }
.log .meta { margin: 0; }
.files { margin: 12px 0 0; padding-left: 18px; }
.props { margin: 0 0 4px; }
.props dt { font-size: 12px; color: var(--muted); margin-top: 10px; }
.props dt:first-child { margin-top: 0; }
.props dd { margin: 2px 0 0; }

@media (max-width: 860px) {
    .split { flex-direction: column; }
    .side-col { flex: none; width: 100%; }
    .grid { display: block; overflow-x: auto; }
    main { padding: 16px; }
}