:root {
    color-scheme: dark;
    --bg: #0a0c11;
    --surface: #12151c;
    --surface-2: #171b24;
    --border: #242938;
    --text: #e8eaf0;
    --text-muted: #8b93a7;
    --accent: #6d7cff;
    --accent-strong: #8b97ff;
    --accent-soft: rgba(109, 124, 255, 0.14);
    --success: #2dd4a7;
    --success-soft: rgba(45, 212, 167, 0.14);
    --warning: #f0b94c;
    --warning-soft: rgba(240, 185, 76, 0.14);
    --danger: #f2617a;
    --danger-soft: rgba(242, 97, 122, 0.14);
    --muted-btn: #2a3040;
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 18px;
    --shadow: 0 1px 2px rgba(0,0,0,0.24), 0 8px 24px rgba(0,0,0,0.28);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

body.theme-light {
    color-scheme: light;
    --bg: #f5f6fa;
    --surface: #ffffff;
    --surface-2: #f5f6fb;
    --border: #e6e8f0;
    --text: #1a1d29;
    --text-muted: #6b7183;
    --accent: #4f5bd5;
    --accent-strong: #3d47b8;
    --accent-soft: rgba(79, 91, 213, 0.09);
    --success: #12977a;
    --success-soft: rgba(18, 151, 122, 0.1);
    --warning: #a3720a;
    --warning-soft: rgba(163, 114, 10, 0.1);
    --danger: #d7365a;
    --danger-soft: rgba(215, 54, 90, 0.09);
    --muted-btn: #e6e8f0;
    --shadow: 0 1px 2px rgba(16,24,40,0.04), 0 6px 20px rgba(16,24,40,0.06);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.15s ease, color 0.15s ease;
}

a { color: var(--accent-strong); }

.container { max-width: 1080px; margin: 0 auto; padding: 28px 24px 60px; }

/* Topbar */
.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 20;
}
.topbar-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
    width: 26px; height: 26px; border-radius: 8px;
    background: linear-gradient(135deg, var(--accent), var(--success));
    display: inline-block;
    flex-shrink: 0;
}
.brand-name { font-weight: 650; font-size: 1.05rem; letter-spacing: -0.01em; }

.topbar-actions { display: flex; align-items: center; gap: 10px; }
.user-badge {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent-strong);
    background: var(--accent-soft);
    padding: 5px 12px;
    border-radius: 999px;
}

.icon-button {
    width: 34px; height: 34px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--text-muted);
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}
.icon-button:hover { background: var(--muted-btn); color: var(--text); }
.icon-button .icon { width: 17px; height: 17px; }
.icon-moon { display: none; }
body.theme-light .icon-sun { display: none; }
body.theme-light .icon-moon { display: block; }

/* Tab nav */
.tab-nav { border-top: 1px solid var(--border); }
.tab-nav-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    gap: 4px;
}
.tab-link {
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 550;
    font-size: 0.92rem;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: color 0.15s ease, border-color 0.15s ease;
}
.tab-link:hover { color: var(--text); }
.tab-link.active { color: var(--accent-strong); border-bottom-color: var(--accent); }

/* Panels */
.panel {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 22px 24px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    margin-bottom: 22px;
}
.panel h2 { margin: 0 0 4px; font-size: 1.1rem; font-weight: 650; letter-spacing: -0.01em; }
.panel .panel-subtitle { margin: 0 0 16px; font-size: 0.88rem; color: var(--text-muted); }
.empty-state {
    text-align: center;
    padding: 32px 16px;
    color: var(--text-muted);
    font-size: 0.92rem;
}

/* Buttons */
.button {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    height: 34px; padding: 0 14px; border-radius: var(--radius-sm); cursor: pointer;
    font-size: 0.86rem; font-weight: 600; border: 1px solid transparent;
    transition: transform 0.08s ease, opacity 0.15s ease, background-color 0.15s ease;
    white-space: nowrap;
}
.button:active { transform: scale(0.97); }
.button:disabled { opacity: 0.5; cursor: default; }
.button-ghost { background: var(--surface-2); color: var(--text); border-color: var(--border); }
.button-ghost:hover { background: var(--muted-btn); }
.btn-apply { background: var(--success-soft); color: var(--success); }
.btn-apply:hover { background: var(--success); color: #04231b; }
.btn-disregard { background: var(--surface-2); color: var(--text-muted); border-color: var(--border); }
.btn-disregard:hover { background: var(--danger-soft); color: var(--danger); }
.btn-link { background: var(--accent-soft); color: var(--accent-strong); text-decoration: none; }
.btn-link:hover { background: var(--accent); color: #fff; }

/* Job table (desktop) / cards (mobile) */
.job-table { width: 100%; border-collapse: collapse; }
.job-table th, .job-table td { padding: 13px 10px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
.job-table tbody tr:last-child td { border-bottom: none; }
.job-table tbody tr:hover { background: var(--surface-2); }
.job-table th { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); font-weight: 650; }
.job-table td.job-title { font-weight: 600; }
.job-table td.actions { white-space: nowrap; }
.job-table td.actions form { display: inline; }
.job-table td.actions .button + form,
.job-table td.actions form + form { margin-left: 6px; }

.fit-badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 999px; font-size: 0.76rem; font-weight: 650; }
.fit-badge::before { content: ""; width: 6px; height: 6px; border-radius: 999px; background: currentColor; }
.fit-excellent { background: var(--success-soft); color: var(--success); }
.fit-good { background: var(--accent-soft); color: var(--accent-strong); }
.fit-moderate { background: var(--warning-soft); color: var(--warning); }

/* Learning topics */
.topic-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.topic-card {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    transition: border-color 0.15s ease, transform 0.1s ease;
}
.topic-card:hover { border-color: var(--accent); }
.topic-card h3 { margin: 0 0 8px; font-size: 1rem; font-weight: 650; letter-spacing: -0.01em; }
.topic-card p { margin: 0 0 12px; font-size: 0.88rem; color: var(--text-muted); line-height: 1.5; }
.topic-card a { font-size: 0.85rem; font-weight: 600; text-decoration: none; }
.topic-card a:hover { text-decoration: underline; }

/* Login */
.login-shell { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.login-card {
    width: 100%; max-width: 360px;
    padding: 32px 28px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}
.login-brand { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 22px; }
.login-card h1 { text-align: center; font-size: 1.2rem; font-weight: 650; margin: 0 0 22px; letter-spacing: -0.01em; }
.login-card label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text-muted); margin: 14px 0 6px; }
.login-card input[type=text], .login-card input[type=password] {
    width: 100%; padding: 11px 12px; border-radius: var(--radius-sm); border: 1px solid var(--border);
    background: var(--surface-2); color: var(--text); font-size: 0.95rem; font-family: inherit;
}
.login-card input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.login-card button {
    width: 100%; height: 40px; margin-top: 20px; border: none; border-radius: var(--radius-sm);
    background: var(--accent); color: #fff; font-size: 0.92rem; font-weight: 650; cursor: pointer;
    transition: background-color 0.15s ease;
}
.login-card button:hover { background: var(--accent-strong); }
.login-error {
    color: var(--danger); text-align: center; font-size: 0.85rem;
    background: var(--danger-soft); border-radius: var(--radius-sm); padding: 9px 12px; margin: 0 0 4px;
}

footer.page-footer { text-align: center; margin-top: 30px; font-size: 0.8rem; color: var(--text-muted); }

/* Mobile */
@media (max-width: 700px) {
    .container { padding: 20px 14px 48px; }
    .topbar-inner { padding: 14px 16px; }
    .tab-nav-inner { padding: 0 16px; }
    .brand-name { font-size: 0.98rem; }
    .panel { padding: 18px 16px; }

    .job-table thead { display: none; }
    .job-table, .job-table tbody, .job-table tr, .job-table td { display: block; width: 100%; }
    .job-table tr {
        border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px;
        padding: 4px 14px; background: var(--surface-2);
    }
    .job-table tbody tr:hover { background: var(--surface-2); }
    .job-table td { border-bottom: 1px solid var(--border); padding: 10px 0; display: flex; justify-content: space-between; align-items: center; gap: 10px; text-align: right; }
    .job-table tr td:last-child { border-bottom: none; }
    .job-table td::before { content: attr(data-label); font-weight: 600; color: var(--text-muted); text-align: left; font-size: 0.82rem; }
    .job-table td.actions { justify-content: flex-end; flex-wrap: wrap; }
    .job-table td.actions::before { content: none; }
    .job-table td.actions .button + form,
    .job-table td.actions form + form { margin-left: 8px; }
}