/* -----------------------------------------------------------------
   Argon2id.PasswordHasher WASM demo — minimal, dependency-free styling.
   ----------------------------------------------------------------- */

:root {
    --bg: #0e1117;
    --bg-elev: #161b22;
    --bg-elev-2: #1c232c;
    --border: #2a313a;
    --text: #e6edf3;
    --text-muted: #8b949e;
    --accent: #7c3aed;
    --accent-fg: #ede9fe;
    --success: #2ea043;
    --error: #f85149;
    --info: #58a6ff;
    --code-bg: #0b0f14;
    --shadow: 0 1px 0 rgba(255, 255, 255, 0.03), 0 12px 28px rgba(0, 0, 0, 0.35);
    --radius: 10px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    font-size: 15.5px;
    line-height: 1.55;
    min-height: 100vh;
}

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

code, pre, .wrap {
    font-family: 'JetBrains Mono', 'Fira Code', Menlo, Consolas, monospace;
    font-size: 13.5px;
}

code { background: var(--bg-elev-2); padding: 1px 5px; border-radius: 4px; }

pre {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
    overflow-x: auto;
    margin: 12px 0 24px;
}

pre code { background: transparent; padding: 0; }

.wrap { word-break: break-all; }

h1 { font-size: 1.8rem; margin: 0 0 12px; letter-spacing: -0.015em; }
h2 { font-size: 1.25rem; margin: 32px 0 10px; letter-spacing: -0.01em; }
h3 { font-size: 1rem; margin: 20px 0 8px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; }

.lede {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 64ch;
    margin: 0 0 24px;
}

.muted { color: var(--text-muted); font-size: 0.9em; }

/* ---------- Loading screen (shown before Blazor boots) ---------- */

.bootstrap-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    gap: 8px;
    color: var(--text-muted);
}
.bootstrap-loading small { font-size: 0.85em; opacity: 0.7; }

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

.page {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: var(--bg-elev);
    border-right: 1px solid var(--border);
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.brand {
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 0 6px;
}

.brand-icon { font-size: 1.6rem; }
.brand-title { font-weight: 700; letter-spacing: -0.01em; }
.brand-subtitle { color: var(--text-muted); font-size: 0.85em; }

.nav-menu { display: flex; flex-direction: column; gap: 4px; }

.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--text);
    font-size: 0.95rem;
}
.nav-link:hover { background: var(--bg-elev-2); text-decoration: none; }
.nav-link.active { background: var(--accent); color: var(--accent-fg); }
.nav-link.active:hover { background: var(--accent); }
.nav-icon { display: inline-block; width: 1.2em; text-align: center; }

.sidebar-footer { margin-top: auto; padding: 0 6px; font-size: 0.9em; }

.content {
    padding: 40px 56px;
    max-width: 920px;
}

@media (max-width: 800px) {
    .page { grid-template-columns: 1fr; }
    .sidebar { border-right: none; border-bottom: 1px solid var(--border); }
    .content { padding: 24px 20px; }
}

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

.form {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 24px;
    box-shadow: var(--shadow);
    max-width: 480px;
}

.form-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-row label { font-size: 0.9em; color: var(--text-muted); }
.form-row input {
    background: var(--code-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.95rem;
    font-family: inherit;
}
.form-row input:focus { outline: 2px solid var(--accent); outline-offset: 0; }

.form-actions { margin-top: 8px; }

.validation-message {
    color: var(--error);
    font-size: 0.85em;
    margin-top: 2px;
}

.btn {
    border: none;
    border-radius: 8px;
    padding: 10px 18px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: filter 0.15s ease-in-out;
}
.btn:disabled { opacity: 0.65; cursor: not-allowed; }

.btn-primary { background: var(--accent); color: var(--accent-fg); }
.btn-primary:hover:not(:disabled) { filter: brightness(1.1); }

.btn-secondary {
    background: var(--bg-elev-2);
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-secondary:hover:not(:disabled) { background: var(--bg-elev); }

/* ---------- Playground ---------- */

.playground-form .playground-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px 18px;
}
.estimated-cost { margin: 10px 0 14px; }

.runs {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0 24px;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.runs th, .runs td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.92em;
}
.runs tr:last-child td { border-bottom: none; }
.runs th { color: var(--text-muted); font-weight: 600; background: var(--bg-elev-2); }
.runs td.num, .runs th.num { text-align: right; font-variant-numeric: tabular-nums; }
.runs tr.warn td { background: rgba(248, 81, 73, 0.08); }

/* ---------- Verify textarea ---------- */

.form-row textarea {
    background: var(--code-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.92rem;
    font-family: 'JetBrains Mono', 'Fira Code', Menlo, Consolas, monospace;
    resize: vertical;
    min-height: 60px;
}
.form-row textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; }

/* ---------- Callouts ---------- */

.callout {
    border-radius: var(--radius);
    padding: 14px 18px;
    margin: 24px 0;
    border-left: 4px solid;
    background: var(--bg-elev);
}

.callout-info    { border-color: var(--info); }
.callout-success { border-color: var(--success); }
.callout-error   { border-color: var(--error); }

/* ---------- Steps ---------- */

.steps { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.step-link {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 18px;
    color: var(--text);
}
.step-link:hover { background: var(--bg-elev-2); text-decoration: none; }
.step-number {
    background: var(--accent);
    color: var(--accent-fg);
    border-radius: 50%;
    width: 1.8em;
    height: 1.8em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex: 0 0 auto;
}

/* ---------- PHC breakdown ---------- */

.phc-grid {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 8px 16px;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    margin: 0 0 20px;
}

.phc-grid dt {
    font-size: 0.85em;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding-top: 2px;
}
.phc-grid dd { margin: 0; word-break: break-all; }

/* ---------- User card ---------- */

.user-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 22px;
    margin-bottom: 18px;
    box-shadow: var(--shadow);
}
.user-card-header { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.user-card-header h2 { margin: 0; font-size: 1.15rem; }

/* ---------- Blazor's built-in error UI ---------- */

#blazor-error-ui {
    background: var(--error);
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, .2);
    color: white;
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}
#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}