:root {
    color-scheme: dark;

    --bg: #202020;
    --bg-alt: #1C1C1C;
    --bg-input-focus: #1F1F1F;

    --layer: rgba(255, 255, 255, 0.0512);
    --layer-alt: rgba(255, 255, 255, 0.0326);
    --control: rgba(255, 255, 255, 0.0605);
    --control-hover: rgba(255, 255, 255, 0.0837);
    --control-press: rgba(255, 255, 255, 0.0419);

    --stroke: rgba(255, 255, 255, 0.0698);
    --stroke-strong: rgba(255, 255, 255, 0.12);
    --divider: rgba(255, 255, 255, 0.0837);

    --text: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.786);
    --text-tertiary: rgba(255, 255, 255, 0.5442);

    --accent: #60CDFF;
    --accent-hover: #55B9E6;
    --accent-press: #4AA5CC;
    --accent-subtle: rgba(96, 205, 255, 0.12);
    --accent-stroke: rgba(96, 205, 255, 0.35);
    --on-accent: #000000;

    --good: #6CCB5F;
    --mid: #FCE100;
    --low: #FF99A4;

    --font-sans: "Segoe UI Variable Text", "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
    --font-display: "Segoe UI Variable Display", "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
    --font-mono: "Cascadia Mono", "Cascadia Code", Consolas, ui-monospace, monospace;

    --radius-control: 4px;
    --radius-card: 8px;
    --shadow-card: 0 2px 4px rgba(0, 0, 0, 0.24);
    --shadow-flyout: 0 8px 16px rgba(0, 0, 0, 0.34);
    --shell: 64rem;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    background-image: radial-gradient(120rem 40rem at 50% -10rem, rgba(96, 205, 255, 0.05), transparent 70%);
    background-attachment: fixed;
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.25;
    margin: 0 0 0.5rem;
}

h1 { font-size: 28px; }
h2 { font-size: 20px; }
h3 { font-size: 16px; }

p { margin: 0 0 1rem; }

.muted { color: var(--text-secondary); }
.dim { color: var(--text-tertiary); }
.small { font-size: 12px; }

.mono {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
    font-size: 0.93em;
}

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

.shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.65rem 1.5rem;
    background: rgba(32, 32, 32, 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--divider);
    position: sticky;
    top: 0;
    z-index: 20;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text);
    font-size: 14px;
    font-weight: 600;
}

.brand:hover { color: var(--text); text-decoration: none; }
.brand strong { font-weight: 600; }

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: var(--radius-control);
    background: var(--accent);
    color: var(--on-accent);
    font-size: 10px;
}

.topnav {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.topnav a {
    color: var(--text-secondary);
    font-size: 14px;
    padding: 0.35rem 0.7rem;
    border-radius: var(--radius-control);
    transition: background 100ms ease, color 100ms ease;
}

.topnav a:hover {
    color: var(--text);
    background: var(--control-hover);
    text-decoration: none;
}

.topnav a.btn { color: var(--on-accent); }
.topnav a.btn:hover { background: var(--accent-hover); }

.who {
    color: var(--text-tertiary);
    font-size: 12px;
    padding-left: 0.75rem;
    margin-left: 0.4rem;
    border-left: 1px solid var(--divider);
}

.content {
    flex: 1;
    width: 100%;
    max-width: var(--shell);
    margin: 0 auto;
    padding: 2rem 1.5rem 3.5rem;
}

.footer {
    padding: 1.25rem;
    border-top: 1px solid var(--divider);
    color: var(--text-tertiary);
    font-size: 12px;
    text-align: center;
}

/* ---------- surfaces ---------- */

.card {
    background: var(--layer);
    border: 1px solid var(--stroke);
    border-radius: var(--radius-card);
    padding: 1.25rem;
    margin-bottom: 0.85rem;
    box-shadow: var(--shadow-card);
}

.card-tight { padding: 0.9rem 1.1rem; }

.card-link {
    display: block;
    color: inherit;
    transition: background 100ms ease, border-color 100ms ease;
}

.card-link:hover {
    background: var(--control-hover);
    border-color: var(--stroke-strong);
    color: inherit;
    text-decoration: none;
}

.card-link:active { background: var(--control-press); }

.page-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.page-head h1 { margin: 0; }
.page-head .meta { margin: 0.4rem 0 0; }

.eyebrow {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    margin: 0 0 0.35rem;
}

/* ---------- controls ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.4rem 0.95rem;
    min-height: 32px;
    border-radius: var(--radius-control);
    border: 1px solid transparent;
    background: var(--accent);
    color: var(--on-accent);
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background 100ms ease;
}

.btn:hover:not(:disabled) { background: var(--accent-hover); color: var(--on-accent); text-decoration: none; }
.btn:active:not(:disabled) { background: var(--accent-press); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }

.btn:focus { outline: none; }

.btn:focus-visible {
    outline: 2px solid var(--text);
    outline-offset: 2px;
}

.btn-ghost {
    background: var(--control);
    border-color: var(--stroke-strong);
    color: var(--text);
}

.btn-ghost:hover:not(:disabled) { background: var(--control-hover); color: var(--text); }
.btn-ghost:active:not(:disabled) { background: var(--control-press); }

.btn-lg { padding: 0.55rem 1.35rem; min-height: 38px; }

.btn-danger {
    background: var(--control);
    border-color: var(--stroke-strong);
    color: var(--low);
}

.btn-danger:hover:not(:disabled) {
    background: rgba(255, 153, 164, 0.12);
    border-color: rgba(255, 153, 164, 0.4);
    color: var(--low);
}

.btn-chip {
    background: var(--control);
    border: 1px solid var(--stroke);
    color: var(--text-secondary);
    font-weight: 400;
    font-size: 13px;
    padding: 0.3rem 0.75rem;
    min-height: 28px;
    border-radius: 999px;
}

.btn-chip:hover:not(:disabled) {
    background: var(--control-hover);
    border-color: var(--stroke-strong);
    color: var(--text);
}

input, textarea, select {
    width: 100%;
    padding: 0.4rem 0.7rem;
    min-height: 32px;
    background: var(--control);
    border: 1px solid var(--stroke-strong);
    border-bottom-color: rgba(255, 255, 255, 0.55);
    border-radius: var(--radius-control);
    color: var(--text);
    font-family: inherit;
    font-size: 14px;
    transition: background 100ms ease;
}

input::placeholder, textarea::placeholder { color: var(--text-tertiary); }

input:hover, textarea:hover, select:hover { background: var(--control-hover); }

input:focus, textarea:focus, select:focus {
    outline: none;
    background: var(--bg-input-focus);
    border-color: var(--stroke-strong);
    border-bottom: 2px solid var(--accent);
    padding-bottom: calc(0.4rem - 1px);
}

textarea {
    min-height: 7.5rem;
    resize: vertical;
    line-height: 1.6;
    padding-top: 0.55rem;
}

label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 12px;
    font-weight: 400;
    color: var(--text-secondary);
}

.field { margin-bottom: 1rem; }

.form-narrow {
    max-width: 23rem;
    margin: 3rem auto;
}

/* ---------- alerts ---------- */

.alert {
    padding: 0.65rem 0.85rem;
    border-radius: var(--radius-control);
    border: 1px solid var(--stroke);
    background: var(--layer);
    font-size: 13px;
    margin-bottom: 1rem;
}

.alert-error {
    border-left: 3px solid var(--low);
    color: var(--low);
}

.alert-info {
    border-left: 3px solid var(--accent);
    color: var(--accent);
}

/* ---------- interview transcript ---------- */

.qa {
    position: relative;
    padding-left: 3rem;
    margin-bottom: 1.75rem;
}

.qa::before {
    content: "";
    position: absolute;
    left: 1rem;
    top: 2.25rem;
    bottom: -1.75rem;
    width: 1px;
    background: var(--divider);
}

.qa:last-of-type::before { display: none; }

.qa-number {
    position: absolute;
    left: 0;
    top: 0;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--stroke-strong);
    background: var(--control);
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-tertiary);
}

.qa.evaluated .qa-number {
    border-color: var(--accent-stroke);
    background: var(--accent-subtle);
    color: var(--accent);
}

.qa-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 2rem;
    margin-bottom: 0.3rem;
}

.qa-question {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    line-height: 1.35;
    margin-bottom: 0.75rem;
}

.qa-answer {
    color: var(--text-secondary);
    background: var(--layer-alt);
    border: 1px solid var(--stroke);
    border-radius: var(--radius-control);
    padding: 0.7rem 0.85rem;
    margin-bottom: 0.7rem;
    white-space: pre-wrap;
    font-size: 13px;
}

.qa-feedback {
    background: var(--accent-subtle);
    border: 1px solid var(--accent-stroke);
    border-radius: var(--radius-control);
    padding: 0.7rem 0.85rem;
    font-size: 13px;
}

.qa-feedback-label {
    display: block;
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

/* ---------- scores & badges ---------- */

.score {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
    font-weight: 600;
    font-size: 13px;
    color: var(--accent);
    white-space: nowrap;
}

.score-good { color: var(--good); }
.score-mid { color: var(--mid); }
.score-low { color: var(--low); }

.score-big {
    font-family: var(--font-display);
    font-variant-numeric: tabular-nums;
    font-size: 40px;
    font-weight: 600;
    line-height: 1.1;
}

.badge {
    display: inline-block;
    padding: 0.1rem 0.6rem;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 400;
    border: 1px solid var(--stroke-strong);
    color: var(--text-secondary);
    background: var(--control);
}

.badge-live {
    border-color: var(--accent-stroke);
    background: var(--accent-subtle);
    color: var(--accent);
}

/* ---------- layout helpers ---------- */

.row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.stack { display: flex; flex-direction: column; gap: 0.7rem; }
.actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.grid {
    display: grid;
    gap: 0.85rem;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.stat-value {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
}

.stat-label {
    color: var(--text-tertiary);
    font-size: 12px;
    margin-top: 0.2rem;
}

/* ---------- progress ---------- */

.progress {
    height: 3px;
    background: var(--control);
    border-radius: 999px;
    overflow: hidden;
    margin-top: 0.75rem;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 999px;
    transition: width 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- tables ---------- */

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

th, td {
    text-align: left;
    padding: 0.6rem 0.5rem;
    border-bottom: 1px solid var(--divider);
}

th {
    color: var(--text-tertiary);
    font-weight: 600;
    font-size: 12px;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr { transition: background 100ms ease; }
tbody tr:hover { background: var(--control-hover); }

.table-wrap { overflow-x: auto; }

/* ---------- spinner ---------- */

.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.25);
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    vertical-align: -2px;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- trend ---------- */

.trend { display: flex; flex-direction: column; gap: 0.6rem; }

.trend-row {
    display: grid;
    grid-template-columns: minmax(6rem, 11rem) 1fr auto;
    align-items: center;
    gap: 0.85rem;
    font-size: 13px;
}

.trend-bar {
    height: 4px;
    background: var(--control);
    border-radius: 999px;
    overflow: hidden;
}

.trend-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 999px;
}

/* ---------- landing ---------- */

.landing {
    max-width: 38rem;
    margin: 4rem auto 0;
    text-align: center;
}

.landing h1 {
    font-size: 40px;
    line-height: 1.15;
    margin: 1rem 0 0;
}

.landing .lede {
    color: var(--text-secondary);
    font-size: 16px;
    margin: 1rem auto 2rem;
    max-width: 32rem;
}

.landing-actions {
    display: flex;
    gap: 0.6rem;
    justify-content: center;
    flex-wrap: wrap;
}

.landing-note { margin: 1rem 0 0; }

.steps {
    display: grid;
    gap: 0.85rem;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    margin: 4rem auto 0;
    max-width: var(--shell);
    text-align: left;
}

.step {
    background: var(--layer);
    border: 1px solid var(--stroke);
    border-radius: var(--radius-card);
    padding: 1.15rem;
    box-shadow: var(--shadow-card);
}

.step-num {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.step h3 { margin-bottom: 0.3rem; }
.step p { color: var(--text-secondary); font-size: 13px; margin: 0; }

/* ---------- errors ---------- */

.blazor-error-boundary {
    background: var(--layer);
    border: 1px solid var(--stroke);
    border-left: 3px solid var(--low);
    border-radius: var(--radius-control);
    padding: 1rem;
    color: var(--low);
}

#blazor-error-ui {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #2B2B2B;
    border-top: 1px solid var(--stroke-strong);
    color: var(--text);
    padding: 0.7rem 1.25rem;
    font-size: 13px;
    box-shadow: var(--shadow-flyout);
    z-index: 1000;
}

#blazor-error-ui .reload { color: var(--accent); }

/* ---------- responsive ---------- */

@media (max-width: 640px) {
    .content { padding: 1.25rem 1rem 2.5rem; }
    .topbar { padding: 0.6rem 1rem; }
    .who { display: none; }
    .page-head { flex-direction: column; align-items: flex-start; }
    .trend-row { grid-template-columns: 1fr; gap: 0.3rem; }
    .landing { margin-top: 2.5rem; }
    .landing h1 { font-size: 28px; }
    .landing h1 br { display: none; }
    .steps { margin-top: 2.5rem; }
    .qa { padding-left: 2.75rem; }
    .score-big { font-size: 32px; }
}