:root {
    /* Brand */
    --primary: #185365;         /* deep teal — brand primary */
    --primary-dark: #0D3945;    /* sidebar / hover depth */
    --primary-light: #2E7C90;   /* accents, links on dark */
    --primary-tint: #E4EEF0;    /* pale teal wash */

    --gold: #B49349;            /* brand gold — CTAs, highlights */
    --gold-dark: #8C7135;       /* gold hover/active */
    --gold-light: #D8BE83;      /* soft gold accents */
    --gold-tint: #F6EFDF;       /* pale gold wash */

    /* Neutrals */
    --ink: #16232A;
    --bg: #F1F4F3;
    --panel: #FFFFFF;
    --line: #E1E7E5;
    --muted: #647079;

    /* Status semantics (kept distinct from brand teal/gold) */
    --teal: #1E8F72;
    --teal-bg: #E4F4EF;
    --amber: #B8721F;
    --amber-bg: #FBF0DE;
    --coral: #B8392F;
    --coral-bg: #FBEAE8;

    /* Flight board */
    --board: #0A2530;
    --board-amber: #D9B36A;
}

* { box-sizing: border-box; }

body.app-body {
    background: var(--bg);
    color: var(--ink);
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    -webkit-font-smoothing: antialiased;
}

.btn, .form-control, .form-select, .nav-item, .chip, h1, h2, h3, .page-title, .brand {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

a { color: var(--primary); }
a:hover { color: var(--primary-dark); }

.app-shell {
    display: flex;
    min-height: 100vh;
    align-items: stretch;
}

/* ---------- Sidebar ---------- */
.sidebar {
    width: 238px;
    flex-shrink: 0;
    background: linear-gradient(180deg, var(--primary-dark) 0%, #0A2C36 100%);
    color: #EAF3F2;
    padding: 22px 16px;
    box-shadow: 2px 0 14px rgba(0, 0, 0, 0.12);
}

.sidebar .brand-block {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 22px;
    padding-bottom: 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar .brand-logo {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: #fff;
    flex-shrink: 0;
    object-fit: contain;
    box-shadow: 0 0 0 2px var(--gold);
}

.sidebar .brand-text { min-width: 0; }

.sidebar .brand {
    font-weight: 700;
    font-size: 14.5px;
    letter-spacing: 0.04em;
    color: #fff;
    line-height: 1.25;
}

.sidebar .brand-sub {
    font-size: 9.5px;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--gold-light);
    margin-top: 2px;
}

.sidebar .nav-label {
    font-size: 10.5px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gold-light);
    font-weight: 700;
    margin: 18px 0 8px 4px;
}

.sidebar .nav-item {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 10px;
    border-radius: 7px;
    font-size: 13px;
    font-weight: 500;
    color: #C9DBDA;
    text-decoration: none;
    margin-bottom: 2px;
    transition: background 0.12s ease, color 0.12s ease;
}

.sidebar .nav-item:hover {
    background: rgba(255, 255, 255, 0.07);
    color: #fff;
}

.sidebar .nav-item.active {
    background: rgba(180, 147, 73, 0.22);
    color: #fff;
    box-shadow: inset 3px 0 0 var(--gold);
}

.sidebar .nav-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #4C7079;
    flex-shrink: 0;
}

.sidebar .nav-item.active .nav-dot {
    background: var(--gold);
}

.sidebar .access-note {
    margin-top: 20px;
    font-size: 11px;
    line-height: 1.5;
    color: #A9C2C0;
    padding: 10px;
    background: rgba(255, 255, 255, 0.05);
    border-left: 2px solid var(--gold);
    border-radius: 6px;
}

/* ---------- Main column ---------- */
.main {
    flex: 1;
    padding: 28px 34px;
    min-width: 0;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 22px;
}

.page-title {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.01em;
    margin: 0;
    color: var(--primary-dark);
}

.page-sub {
    color: var(--muted);
    font-size: 13px;
    margin-top: 3px;
}

.user-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--panel);
    border: 1px solid var(--line);
    padding: 7px 12px;
    border-radius: 8px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--ink);
    text-decoration: none;
    box-shadow: 0 1px 2px rgba(16, 40, 46, 0.05);
}

.user-chip:hover { color: var(--ink); border-color: var(--gold); }

.avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--gold);
    color: #2A2107;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
}

/* ---------- Stat cards ---------- */
.stat-row {
    display: flex;
    gap: 14px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.stat-card {
    flex: 1;
    min-width: 150px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-top: 3px solid var(--gold);
    border-radius: 10px;
    padding: 14px 16px;
    box-shadow: 0 1px 3px rgba(16, 40, 46, 0.05);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(13, 57, 69, 0.10);
}

.stat-num {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-dark);
}

.stat-label {
    font-size: 11.5px;
    color: var(--muted);
    margin-top: 2px;
}

/* ---------- Panels ---------- */
.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 22px;
    box-shadow: 0 1px 3px rgba(16, 40, 46, 0.05);
}

.panel-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 18px;
    border-bottom: 1px solid var(--line);
    gap: 12px;
    flex-wrap: wrap;
}

.panel-head h2 { margin: 0; font-size: 14.5px; font-weight: 700; color: var(--primary-dark); }
.panel-head p { margin: 2px 0 0; font-size: 11.5px; color: var(--muted); }

.panel table { margin-bottom: 0; }
.panel .table > :not(caption) > * > * { border-bottom-color: var(--line); }
.panel .table-hover > tbody > tr:hover > * { background-color: var(--primary-tint); }

.search-wrap { position: relative; flex: 1; min-width: 200px; max-width: 320px; }
.search-wrap input { padding-left: 30px; }
.search-icon { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); font-size: 12px; color: var(--muted); z-index: 5; }

.form-row {
    display: flex;
    gap: 10px;
    padding: 14px 18px;
    flex-wrap: wrap;
    background: var(--primary-tint);
    border-bottom: 1px solid var(--line);
}
.form-row .form-control, .form-row .form-select, .form-row textarea { flex: 1; min-width: 140px; }
.form-row textarea { min-width: 100%; }

/* ---------- Chips / tags ---------- */
.chip {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.01em;
    cursor: pointer;
    border: 1px solid transparent;
    user-select: none;
    white-space: nowrap;
}
.chip.teal { background: var(--teal-bg); color: var(--teal); }
.chip.amber { background: var(--amber-bg); color: var(--amber); }
.chip.coral { background: var(--coral-bg); color: var(--coral); }
.chip.gray { background: #EEF1F6; color: var(--muted); }
.chip:hover { filter: brightness(0.95); transform: translateY(-1px); }
.chip.static { cursor: default; }
.chip.static:hover { transform: none; filter: none; }

.type-tag {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.03em;
    padding: 2px 7px;
    border-radius: 4px;
}
.type-tag.sa { background: #1B3F4D; color: #9FD4E3; }
.type-tag.rp { background: #4A3B1E; color: #E3C98F; }

.cost-tag {
    font-family: 'Consolas', monospace;
    font-size: 11px;
    color: var(--primary);
    background: var(--primary-tint);
    padding: 2px 8px;
    border-radius: 4px;
}

.review-days { font-family: 'Consolas', monospace; font-size: 11.5px; }
.date-cell { font-family: 'Consolas', monospace; font-size: 11.5px; color: var(--muted); }
.name-cell { font-weight: 600; }
.sub-cell { color: var(--muted); font-size: 11px; margin-top: 1px; }

.overdue-row { background: var(--coral-bg); }
.due-soon-row { background: var(--amber-bg); }

/* ---------- Flight board (opportunities) ---------- */
.board { background: var(--board); padding: 6px; border-radius: 0 0 12px 12px; }
.board-row {
    display: grid;
    grid-template-columns: 1.6fr 0.8fr 1fr 1fr 0.9fr;
    align-items: center;
    gap: 10px;
    padding: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.board-row.header {
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #6E93A0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.board-row:last-child { border-bottom: none; }
.board-row:not(.header):hover { background: rgba(217, 179, 106, 0.06); }
.flap { font-family: 'Consolas', monospace; color: var(--board-amber); font-size: 13px; font-weight: 600; letter-spacing: 0.02em; }
.board-prog { color: #EAF3F2; font-size: 13px; font-weight: 600; }
.board-req { color: #82A2AC; font-size: 11px; margin-top: 3px; line-height: 1.4; }
.board-country { color: #9DC0C9; font-size: 12px; }
.board-meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 5px; }
.board-link { font-size: 11px; color: #9DC0C9; text-decoration: none; cursor: pointer; }
.board-link:hover { color: var(--gold-light); text-decoration: underline; }
.board-empty { padding: 26px; text-align: center; color: #82A2AC; font-size: 12.5px; }

.countdown { font-family: 'Consolas', monospace; font-size: 13px; font-weight: 600; }
.countdown-ok, .countdown.ok { color: #5FD9A4; }
.countdown-soon, .countdown.soon { color: var(--board-amber); }
.countdown-late, .countdown.late { color: #F26B5E; }

/* ---------- Read-only banner ---------- */
.readonly-banner {
    background: var(--gold-tint);
    border: 1px solid var(--gold-light);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 12px;
    color: #6B5626;
    margin-bottom: 18px;
}

/* ---------- Timeline (student progress) ---------- */
.case-select { display: flex; gap: 8px; margin-bottom: 18px; }
.case-select button {
    background: var(--panel);
    border: 1px solid var(--line);
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--muted);
    cursor: pointer;
}
.case-select button.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.timeline { padding: 26px 24px; }
.tl-step { display: flex; gap: 14px; position: relative; padding-bottom: 26px; }
.tl-step:last-child { padding-bottom: 0; }
.tl-line { position: absolute; left: 11px; top: 24px; bottom: 0; width: 2px; background: var(--line); }
.tl-step.done .tl-line, .tl-step.current .tl-line { background: var(--primary); }
.tl-dot {
    width: 24px; height: 24px; border-radius: 50%;
    background: #EEF1F6; border: 2px solid var(--line);
    flex-shrink: 0; display: flex; align-items: center; justify-content: center;
    font-size: 11px; font-weight: 700; color: var(--muted); z-index: 1;
}
.tl-step.done .tl-dot { background: var(--primary); border-color: var(--primary); color: #fff; }
.tl-step.current .tl-dot { background: var(--gold-tint); border-color: var(--gold); color: var(--gold-dark); }
.tl-step.rejected .tl-dot { background: var(--coral-bg); border-color: var(--coral); color: var(--coral); }
.tl-title { font-size: 13.5px; font-weight: 700; }
.tl-step.current .tl-title { color: var(--gold-dark); }
.tl-step.rejected .tl-title { color: var(--coral); }
.tl-date { font-family: 'Consolas', monospace; font-size: 11px; color: var(--muted); margin-top: 2px; }
.tl-note { font-size: 11.5px; color: var(--muted); margin-top: 3px; }

/* ---------- Misc ---------- */
.empty-state { padding: 32px 18px; text-align: center; color: var(--muted); font-size: 13px; }
.upload-row { display: flex; gap: 10px; align-items: center; padding: 14px 18px; background: var(--primary-tint); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.suggest-form { display: flex; gap: 10px; padding: 14px 18px; flex-wrap: wrap; background: var(--primary-tint); border-bottom: 1px solid var(--line); align-items: flex-end; }
.suggest-form label { font-size: 10.5px; color: var(--muted); display: block; margin-bottom: 4px; }
.check-col { width: 26px; }

/* ---------- Bootstrap overrides (brand colors) ---------- */
.btn-primary {
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 55%, var(--gold-dark) 100%);
    border-color: var(--gold-dark);
    color: #241D08;
    font-weight: 600;
    box-shadow: 0 1px 2px rgba(140, 113, 53, 0.25);
    transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn-primary:hover, .btn-primary:focus, .btn-primary:active {
    background: var(--gold-dark) !important;
    border-color: var(--gold-dark) !important;
    color: #fff !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(140, 113, 53, 0.30);
}
.btn-secondary {
    background-color: var(--primary);
    border-color: var(--primary);
}
.btn-secondary:hover, .btn-secondary:focus, .btn-secondary:active {
    background-color: var(--primary-dark) !important;
    border-color: var(--primary-dark) !important;
}
.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
}
.btn-outline-primary:hover {
    background-color: var(--primary);
    border-color: var(--primary);
}
.btn-link { color: var(--primary); }
.form-control:focus, .form-select:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 0.2rem rgba(24, 83, 101, 0.15);
}
.dropdown-item:active, .dropdown-item.active {
    background-color: var(--primary-tint);
    color: var(--ink);
}

/* ---------- Public navbar (guest) ---------- */
.guest-navbar {
    background: var(--panel);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 1px 3px rgba(16, 40, 46, 0.05);
}
.guest-navbar .navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: var(--primary-dark);
}
.guest-navbar .navbar-brand img {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    box-shadow: 0 0 0 2px var(--gold);
}
.guest-navbar .nav-link { color: var(--ink); font-weight: 500; }
.guest-navbar .nav-link:hover { color: var(--primary); }

/* ---------- Auth pages (login / register) ---------- */
.auth-wrap {
    min-height: calc(100vh - 64px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 16px;
    background:
        radial-gradient(circle at 15% 20%, rgba(180, 147, 73, 0.10), transparent 45%),
        radial-gradient(circle at 85% 80%, rgba(24, 83, 101, 0.10), transparent 45%),
        var(--bg);
}
.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-top: 4px solid var(--gold);
    border-radius: 14px;
    padding: 36px 32px;
    box-shadow: 0 10px 30px rgba(13, 57, 69, 0.10);
}
.auth-card .auth-logo {
    display: block;
    width: 66px;
    height: 66px;
    margin: 0 auto 14px;
    border-radius: 50%;
}
.auth-card h1 {
    font-size: 20px;
    font-weight: 700;
    text-align: center;
    color: var(--primary-dark);
    margin-bottom: 2px;
}
.auth-card .auth-sub {
    text-align: center;
    font-size: 12px;
    color: var(--muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 24px;
}
.auth-card label { font-size: 13px; font-weight: 600; color: var(--ink); }
.auth-card .btn-primary { width: 100%; padding: 10px; margin-top: 6px; }
.auth-card .auth-footer { text-align: center; font-size: 12.5px; color: var(--muted); margin-top: 18px; }

@media (max-width: 768px) {
    .app-shell { flex-direction: column; }
    .sidebar { width: 100%; }
    .board-row { grid-template-columns: 1fr; }
}