@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;600;700&display=swap');

:root {
    --bg:        #0a0a0a;
    --bg-card:   #1a1a1a;
    --bg-side:   #111111;
    --border:    #2a2a2a;
    --yellow:    #FFCC00;
    --yellow-hv: #e6b800;
    --text:      #ffffff;
    --muted:     #999999;
    --danger:    #dc3545;
    --success:   #28a745;
}

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

body {
    font-family: 'Open Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.6;
}

a { color: var(--yellow); text-decoration: none; }
a:hover { color: var(--yellow-hv); }

/* ── Section titles ── */
.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin-bottom: 14px;
}
.section-title::before {
    content: '';
    display: inline-block;
    width: 3px;
    height: 16px;
    background: var(--yellow);
    border-radius: 2px;
    flex-shrink: 0;
}

/* ── Cards ── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 16px;
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    font-family: 'Open Sans', sans-serif;
    font-size: 13px;
    font-weight: 600;
    transition: background 0.15s;
}
.btn-primary {
    background: var(--yellow);
    color: #000;
}
.btn-primary:hover { background: var(--yellow-hv); }
.btn-secondary {
    background: var(--bg-side);
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 5px 12px; font-size: 12px; }

/* ── Forms ── */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}
.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 5px;
    color: var(--text);
    font-family: 'Open Sans', sans-serif;
    font-size: 14px;
    transition: border-color 0.15s;
}
.form-control:focus {
    outline: none;
    border-color: var(--yellow);
}
.form-control::placeholder { color: #555; }

/* ── Alerts ── */
.alert {
    padding: 10px 14px;
    border-radius: 5px;
    font-size: 13px;
    margin-bottom: 16px;
}
.alert-danger  { background: rgba(220,53,69,.15); border: 1px solid rgba(220,53,69,.4); color: #f87171; }
.alert-success { background: rgba(40,167,69,.15);  border: 1px solid rgba(40,167,69,.4);  color: #6ee7a0; }
.alert-info    { background: rgba(255,204,0,.08);  border: 1px solid rgba(255,204,0,.25); color: var(--yellow); }

/* ── Login page ── */
.login-wrap {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
}
.login-logo {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--yellow);
    text-transform: uppercase;
    margin-bottom: 8px;
}
.login-sub {
    font-size: 12px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 36px;
}
.login-box {
    width: 100%;
    max-width: 380px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 32px;
}
.login-box h1 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}
.login-box p {
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 24px;
}
.login-footer {
    margin-top: 32px;
    font-size: 11px;
    color: #444;
    text-align: center;
    line-height: 1.7;
}

/* ── Shell layout ── */
.shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 220px;
    flex-shrink: 0;
    background: var(--bg-side);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 0;
}
.sidebar-brand {
    padding: 20px 18px 16px;
    border-bottom: 1px solid var(--border);
}
.sidebar-brand .logo {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--yellow);
    text-transform: uppercase;
}
.sidebar-brand .logo-sub {
    font-size: 10px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 2px;
}
.sidebar-nav { padding: 14px 0; flex: 1; }
.nav-section {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #444;
    padding: 10px 18px 4px;
}
.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
    transition: color 0.15s, background 0.15s;
    border-left: 3px solid transparent;
}
.nav-link:hover { color: var(--text); background: rgba(255,255,255,.04); }
.nav-link.active { color: var(--yellow); border-left-color: var(--yellow); background: rgba(255,204,0,.06); }
.nav-link svg { opacity: 0.7; flex-shrink: 0; }
.nav-link.active svg { opacity: 1; }

.sidebar-user {
    padding: 14px 18px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}
.avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--yellow);
    color: #000;
    font-weight: 700;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.sidebar-user-info { flex: 1; min-width: 0; }
.sidebar-user-info .name {
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sidebar-user-info .dept {
    font-size: 10px;
    color: var(--muted);
}

/* ── Main content ── */
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.topbar {
    height: 52px;
    background: var(--bg-side);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 12px;
}
.topbar-title { font-size: 14px; font-weight: 600; flex: 1; }
.topbar-meta { font-size: 12px; color: var(--muted); }

.content { padding: 24px; flex: 1; }

/* ── Dashboard grid ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }

.stat-row { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.stat-card {
    flex: 1;
    min-width: 120px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
}
.stat-card .val {
    font-size: 26px;
    font-weight: 700;
    color: var(--yellow);
    line-height: 1;
    margin-bottom: 4px;
}
.stat-card .lbl { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }

/* ── Message list ── */
.msg-item {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}
.msg-item:last-child { border-bottom: none; padding-bottom: 0; }
.msg-header { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.msg-author { font-size: 12px; font-weight: 600; color: var(--yellow); }
.msg-time   { font-size: 11px; color: #555; }
.msg-body   { font-size: 13px; color: var(--text); }

/* ── File list ── */
.file-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}
.file-item:last-child { border-bottom: none; }
.file-icon {
    width: 32px;
    height: 32px;
    background: rgba(255,204,0,.12);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--yellow);
    font-size: 11px;
    font-weight: 700;
}
.file-info { flex: 1; min-width: 0; }
.file-name { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-meta { font-size: 11px; color: var(--muted); margin-top: 1px; }
.file-dl a { font-size: 11px; }

/* ── Upload area ── */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 32px;
    text-align: center;
    color: var(--muted);
    transition: border-color 0.15s;
    cursor: pointer;
}
.upload-zone:hover { border-color: var(--yellow); color: var(--text); }
.upload-zone input[type=file] { display: none; }
.upload-zone .uz-icon { font-size: 28px; margin-bottom: 8px; }
.upload-zone .uz-label { font-size: 13px; font-weight: 500; }
.upload-zone .uz-hint { font-size: 11px; margin-top: 4px; }

/* ── Table ── */
table { width: 100%; border-collapse: collapse; }
th {
    text-align: left;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--muted);
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}
td {
    padding: 10px 12px;
    font-size: 13px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,.02); }

/* ── Badge ── */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.badge-yellow { background: rgba(255,204,0,.15); color: var(--yellow); }
.badge-green  { background: rgba(40,167,69,.15);  color: #6ee7a0; }
.badge-grey   { background: var(--border); color: var(--muted); }

/* ── Breadcrumb ── */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 20px;
}
.breadcrumb span { color: #555; }

/* ── Textarea ── */
textarea.form-control { resize: vertical; min-height: 80px; }

/* ── Divider ── */
.divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }