/* ═══════════════════════════════════════════════════════
   LearnBlazor — Microsoft Learn-inspired theme
   ═══════════════════════════════════════════════════════
   Type scale:  0.875rem (sm) · 1rem (base) · 1.25rem (lg) · hero h1 clamp
   Colors:      --text (primary) · --muted (secondary) · --link (interactive)
   Weights:     400 (body) · 600 (emphasis)
   ═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans:wght@400;600;700&display=swap');

:root {
    --font: 'Noto Sans', 'Segoe UI', system-ui, sans-serif;
    --text: #1a1a1a;
    --muted: #505050;
    --link: #0068d4;
    --link-hover: #004a95;
    --bg: #ffffff;
    --bg-accent: #e8e6df;
    --bg-card: #f5f5f2;
    --border: #d6d6d6;
    --purple: #613182;
    --red: #f4374d;
    --radius: 0.375rem;
    --radius-lg: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-lg: 1.25rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        --text: #e8e8e8;
        --muted: #b0b0b0;
        --link: #4ea4f5;
        --link-hover: #7dbdff;
        --bg: #1f1f1f;
        --bg-accent: #091f2c;
        --bg-card: #292929;
        --border: #404040;
    }
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
    font-family: var(--font);
    font-size: var(--fs-base);
    font-weight: 400;
    line-height: 1.6;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
}

/* ── Page shell ─────────────────────────────────────── */
.learnweb-body {
    min-height: 100vh;
    background: var(--bg);
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 960px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    flex: 1;
}

/* ── Hero banner ────────────────────────────────────── */
.hero-banner {
    position: relative;
    background: var(--bg-accent);
    border-radius: var(--radius-lg);
    margin: 2rem auto;
    max-width: 960px;
    min-height: 280px;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 3rem 2.5rem;
}

.hero-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 75% 50%, rgba(139, 61, 166, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse at 90% 30%, rgba(244, 55, 77, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero-banner::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 45%;
    background: url('https://learn.microsoft.com/media/home-and-directory/hero_mcp.png') center/cover no-repeat;
    opacity: 0.85;
    mask-image: linear-gradient(to right, transparent 0%, black 30%);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 30%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 55%;
}

.hero-content h1 {
    font-size: clamp(1.75rem, 2.5vw + 1rem, 2.5rem);
    font-weight: 700;
    color: var(--text);
    line-height: 1.2;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
    outline: none;
}

.hero-content .subtitle {
    color: var(--muted);
    font-size: var(--fs-base);
    line-height: 1.6;
    margin-bottom: 0;
}

/* ── Search section ─────────────────────────────────── */
.search-section {
    margin: 2rem 0;
}

.search-container {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

input[type="text"] {
    flex: 1;
    min-width: 200px;
    padding: 0.625rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font: inherit;
    font-size: var(--fs-base);
    background: var(--bg);
    color: var(--text);
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--link);
    box-shadow: 0 0 0 2px rgba(0, 104, 212, 0.15);
}

button, .btn-search {
    padding: 0.625rem 1.5rem;
    background: var(--link);
    color: #fff;
    border: 1px solid var(--link);
    border-radius: var(--radius);
    font: inherit;
    font-size: var(--fs-base);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

button:hover, .btn-search:hover {
    background: var(--link-hover);
    border-color: var(--link-hover);
}

button:disabled, .btn-search:disabled {
    background: var(--border);
    border-color: var(--border);
    color: var(--muted);
    cursor: not-allowed;
}

/* ── Results ────────────────────────────────────────── */
.results {
    margin-top: 1.5rem;
}

.result-count {
    color: var(--muted);
    font-size: var(--fs-sm);
    margin-bottom: 1rem;
}

.result-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--purple);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: var(--radius);
    transition: box-shadow 0.2s;
}

.result-item:hover {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.result-title {
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--link);
    margin-bottom: 0.5rem;
    line-height: 1.4;
    text-decoration: none;
    display: block;
    transition: color 0.15s;
}

.result-title:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

.result-content {
    color: var(--muted);
    line-height: 1.6;
    font-size: var(--fs-base);
    white-space: pre-wrap;
}

/* ── Alerts ─────────────────────────────────────────── */
.alert-danger {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-left: 3px solid var(--red);
    color: #b91c1c;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-size: var(--fs-base);
}

.no-results {
    text-align: center;
    color: var(--muted);
    padding: 3rem;
    font-size: var(--fs-base);
}

/* ── Footer ─────────────────────────────────────────── */
.footer {
    margin-top: 3rem;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--muted);
    font-size: var(--fs-sm);
}

.footer a {
    color: var(--link);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* ── Spinner ────────────────────────────────────────── */
.spinner-border {
    width: 1rem;
    height: 1rem;
    border-width: 2px;
}

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 700px) {
    .hero-banner {
        min-height: 200px;
        padding: 2rem 1.5rem;
        margin: 1rem;
    }

    .hero-banner::after {
        width: 35%;
        opacity: 0.5;
    }

    .hero-content {
        max-width: 70%;
    }

    .container {
        padding: 0 1rem;
    }

    .search-container {
        flex-direction: column;
    }

    input[type="text"],
    button {
        flex: none;
        width: 100%;
    }

    button {
        justify-content: center;
    }
}

/* ── Blazor error boundary ──────────────────────────── */
.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}