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

:root {
    --bg: #0a0a0a;
    --surface: #111111;
    --surface-raised: #161616;
    --border: #222222;
    --text: #e8e8e8;
    --text-dim: #666666;
    --accent-red: #ff3b3b;
    --accent-blue: #3b8fff;
    --accent-green: #3bff8f;
    --accent-yellow: #ffd93b;

    --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
}

body {
    min-height: 100vh;
}

a { color: inherit; }

button, input, select {
    font-family: var(--font-mono);
}

/* ---------- Layout shell ---------- */

.app-shell {
    max-width: 1180px;
    margin: 0 auto;
    padding: 40px 24px 80px;
}

.topbar {
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.eyebrow {
    display: inline-block;
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 4px 10px;
    margin-bottom: 14px;
}

.page-title {
    font-size: 1.9rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.01em;
}

.page-title .dim {
    color: var(--text-dim);
    font-weight: 400;
}

.page-subtitle {
    margin-top: 6px;
    color: var(--text-dim);
    font-size: 0.85rem;
}

/* ---------- Tabs ---------- */

.tabs {
    display: flex;
    gap: 28px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 28px;
    overflow-x: auto;
}

.tab {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0 0 14px 0;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
}

.tab:hover {
    color: var(--text);
}

.tab.active {
    color: var(--accent-yellow);
    border-bottom-color: var(--accent-yellow);
}

/* ---------- Stat grid ---------- */

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    border: 1px solid var(--border);
    margin-bottom: 24px;
}

.stat-cell {
    padding: 18px 20px;
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stat-grid .stat-cell:nth-last-child(-n+10) { border-bottom: none; }
.stat-cell:last-child { border-right: none; }

.stat-label {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 1.7rem;
    font-weight: 700;
    line-height: 1;
}

.v-red { color: var(--accent-red); }
.v-blue { color: var(--accent-blue); }
.v-green { color: var(--accent-green); }
.v-yellow { color: var(--accent-yellow); }
.v-text { color: var(--text); }

/* ---------- Buttons ---------- */

.btn {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 700;
    padding: 12px 20px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
    cursor: pointer;
}

.btn:hover { border-color: var(--text-dim); }

.btn-primary {
    background: var(--text);
    color: var(--bg);
    border: 1px solid var(--text);
}

.btn-primary:hover { background: #ffffff; }

.btn-danger {
    color: var(--accent-red);
    border-color: var(--accent-red);
}

.btn-sm { padding: 7px 12px; font-size: 0.7rem; }

/* ---------- Log line ---------- */

.log-line {
    color: var(--accent-green);
    font-size: 0.82rem;
    margin: 14px 0 28px;
}

.log-line::before { content: "// "; opacity: 0.7; }

/* ---------- Cards / panels ---------- */

.panel {
    border: 1px solid var(--border);
    padding: 20px;
    margin-bottom: 24px;
}

.panel-title {
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

/* ---------- Tables / lists ---------- */

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.data-table th {
    text-align: left;
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
    font-weight: 400;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
}

.data-table tr:last-child td { border-bottom: none; }

.tag {
    display: inline-block;
    font-size: 0.65rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 2px 8px;
    border: 1px solid var(--border);
    color: var(--text-dim);
    margin-right: 4px;
}

.tag-probe { color: var(--accent-yellow); border-color: var(--accent-yellow); }
.tag-bestanden { color: var(--accent-green); border-color: var(--accent-green); }
.tag-nicht-bestanden { color: var(--accent-red); border-color: var(--accent-red); }

/* ---------- Forms ---------- */

.form-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

.form-row label {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
}

.form-row input,
.form-row select {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 12px;
    font-size: 0.88rem;
}

.form-row input:focus,
.form-row select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0 16px;
}

.filter-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.segmented {
    display: inline-flex;
    border: 1px solid var(--border);
}

.segmented button {
    background: none;
    border: none;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 8px 14px;
    cursor: pointer;
    border-right: 1px solid var(--border);
}

.segmented button:last-child { border-right: none; }
.segmented button.active { color: var(--bg); background: var(--accent-blue); }

/* ---------- Requirement tree ---------- */

.req-card {
    border: 1px solid var(--border);
    padding: 16px 18px;
    margin-bottom: 10px;
}

.req-card.req-child {
    margin-left: 28px;
    border-left: 2px solid var(--border);
}

.req-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.req-name { font-size: 0.9rem; font-weight: 500; }

.req-status {
    font-size: 0.68rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 3px 8px;
    border: 1px solid var(--border);
}

.req-status.done { color: var(--accent-green); border-color: var(--accent-green); }
.req-status.open { color: var(--text-dim); }

.progress-track {
    height: 4px;
    background: var(--surface-raised);
    margin-top: 10px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent-blue);
}

.req-meta {
    margin-top: 6px;
    font-size: 0.72rem;
    color: var(--text-dim);
}

/* ---------- Auth screen ---------- */

.auth-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-box {
    width: 100%;
    max-width: 380px;
    max-height: 85vh;
    overflow-y: auto;
    border: 1px solid var(--border);
    background: var(--bg);
    padding: 32px;
}

.auth-tabs {
    display: flex;
    gap: 20px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.scale-option {
    border: 1px solid var(--border);
    padding: 12px;
    margin-bottom: 8px;
    cursor: pointer;
    font-size: 0.82rem;
}

.scale-option.selected {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.hidden { display: none !important; }

.empty-state {
    color: var(--text-dim);
    font-size: 0.85rem;
    padding: 24px 0;
}

@media (max-width: 640px) {
    .stat-cell:nth-child(2n) { border-right: none; }
}