:root {
    color-scheme: light;
    --bg: #f5f7fb;
    --surface: #ffffff;
    --surface-soft: #f8fafc;
    --text: #172033;
    --muted: #657089;
    --line: #dfe5ef;
    --brand: #3758d6;
    --brand-dark: #2844ae;
    --accent: #7c3aed;
    --success: #147a50;
    --shadow: 0 16px 40px rgba(31, 45, 78, 0.08);
    --radius: 18px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.55;
}

a {
    color: inherit;
}

button,
input {
    font: inherit;
}

.site-header {
    background:
        radial-gradient(circle at 80% 10%, rgba(124, 58, 237, 0.42), transparent 31rem),
        radial-gradient(circle at 10% 0%, rgba(74, 116, 255, 0.38), transparent 28rem),
        linear-gradient(135deg, #10172b 0%, #172449 58%, #202c5d 100%);
    color: #fff;
}

.nav,
.hero,
.main,
.footer-inner {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 22px 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 750;
    letter-spacing: -0.02em;
}

.brand-mark {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
    font-size: 0.78rem;
    font-weight: 850;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.92rem;
}

.nav-links a {
    text-decoration: none;
}

.nav-links a:hover {
    color: #fff;
}


.nav-support-link {
    padding: 7px 11px;
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}


.support-callout {
    display: flex;
    width: min(1180px, calc(100% - 40px));
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin: 22px auto 50px;
    padding: 15px 20px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface);
    color: var(--text);
    box-shadow: 0 8px 24px rgba(31, 45, 78, 0.05);
}

.support-callout div {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 10px;
    align-items: baseline;
}

.support-callout span {
    color: var(--muted);
    font-size: 0.86rem;
}

.support-callout a {
    flex: 0 0 auto;
    color: var(--brand);
    font-size: 0.84rem;
    font-weight: 750;
    text-decoration: none;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.75fr);
    gap: 52px;
    align-items: center;
    padding: 72px 0 84px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 11px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.86);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.eyebrow::before {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #69e3ad;
    content: "";
    box-shadow: 0 0 0 4px rgba(105, 227, 173, 0.14);
}

.hero h1 {
    max-width: 760px;
    margin: 20px 0 18px;
    font-size: clamp(2.6rem, 5vw, 4.8rem);
    line-height: 0.98;
    letter-spacing: -0.055em;
}

.hero-copy {
    max-width: 720px;
    margin: 0;
    color: rgba(255, 255, 255, 0.74);
    font-size: clamp(1rem, 1.8vw, 1.16rem);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.button {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border: 0;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 750;
    text-decoration: none;
    transition: transform 140ms ease, background 140ms ease, box-shadow 140ms ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button-primary {
    background: #fff;
    color: #16234c;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
}

.button-secondary {
    border: 1px solid rgba(255, 255, 255, 0.22);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.hero-panel {
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 22px;
    background: rgba(9, 15, 34, 0.38);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.18);
    backdrop-filter: blur(12px);
}

.hero-panel-title {
    margin: 0 0 16px;
    color: rgba(255, 255, 255, 0.66);
    font-size: 0.78rem;
    font-weight: 750;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.stat {
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.06);
}

.stat strong {
    display: block;
    margin-bottom: 3px;
    font-size: 1.25rem;
}

.stat span {
    color: rgba(255, 255, 255, 0.62);
    font-size: 0.78rem;
}

.main {
    padding: 54px 0 84px;
}

.intro {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 28px;
    margin-bottom: 28px;
}

.intro h2 {
    margin: 0 0 7px;
    font-size: clamp(1.65rem, 3vw, 2.25rem);
    letter-spacing: -0.035em;
}

.intro p {
    max-width: 660px;
    margin: 0;
    color: var(--muted);
}

.toolbar {
    display: grid;
    grid-template-columns: minmax(220px, 1fr) auto;
    gap: 18px;
    align-items: center;
    margin-bottom: 30px;
}

.search-wrap {
    position: relative;
}

.search-wrap svg {
    position: absolute;
    top: 50%;
    left: 16px;
    width: 18px;
    transform: translateY(-50%);
    color: #8994a8;
}

.search-input {
    width: 100%;
    min-height: 48px;
    padding: 11px 16px 11px 46px;
    border: 1px solid var(--line);
    border-radius: 14px;
    outline: none;
    background: var(--surface);
    color: var(--text);
    box-shadow: 0 4px 14px rgba(31, 45, 78, 0.03);
}

.search-input:focus {
    border-color: #9aaaf0;
    box-shadow: 0 0 0 4px rgba(55, 88, 214, 0.1);
}

.filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.filter-button {
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    color: var(--muted);
    cursor: pointer;
    font-size: 0.84rem;
    font-weight: 700;
}

.filter-button:hover,
.filter-button.is-active {
    border-color: var(--brand);
    background: var(--brand);
    color: #fff;
}

.sample-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.sample-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.sample-card[hidden] {
    display: none;
}

.card-main {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 24px;
}

.card-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.category {
    display: inline-flex;
    align-items: center;
    padding: 5px 9px;
    border-radius: 999px;
    background: #eef2ff;
    color: #4158b7;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.035em;
    text-transform: uppercase;
}

.sample-id {
    color: #98a2b4;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.76rem;
}

.sample-card h3 {
    margin: 0;
    font-size: 1.32rem;
    letter-spacing: -0.025em;
}

.description {
    margin: 9px 0 19px;
    color: var(--muted);
    font-size: 0.94rem;
}

.meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.meta-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 9px;
    border: 1px solid #e6eaf2;
    border-radius: 9px;
    background: var(--surface-soft);
    color: #69758c;
    font-size: 0.78rem;
    font-weight: 650;
}

.meta-pill.ok {
    color: var(--success);
}

.card-details {
    border-top: 1px solid var(--line);
    background: var(--surface-soft);
}

.card-details details + details {
    border-top: 1px solid var(--line);
}

.card-details summary {
    padding: 13px 24px;
    cursor: pointer;
    color: #536078;
    font-size: 0.84rem;
    font-weight: 750;
    user-select: none;
}

.detail-content {
    max-height: 330px;
    overflow: auto;
    padding: 0 24px 18px;
}

pre {
    margin: 0;
    padding: 16px;
    overflow: auto;
    border-radius: 12px;
    background: #111827;
    color: #dbe4f3;
    font: 0.79rem/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.card-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 24px 20px;
}

.generate-button {
    width: 100%;
    background: var(--brand);
    color: #fff;
    box-shadow: 0 7px 16px rgba(55, 88, 214, 0.2);
}

.generate-button:hover {
    background: var(--brand-dark);
}

.generate-button[disabled] {
    cursor: progress;
    opacity: 0.68;
    transform: none;
}

.empty-state {
    display: none;
    padding: 54px 24px;
    border: 1px dashed #ccd4e2;
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--muted);
    text-align: center;
}

.empty-state.is-visible {
    display: block;
}

.toast {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 50;
    max-width: min(380px, calc(100% - 44px));
    padding: 13px 16px;
    border-radius: 12px;
    background: #172033;
    color: #fff;
    box-shadow: 0 18px 45px rgba(20, 28, 48, 0.26);
    font-size: 0.88rem;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: opacity 180ms ease, transform 180ms ease;
}

.toast.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.site-footer {
    border-top: 1px solid var(--line);
    background: #fff;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 28px 0;
    color: var(--muted);
    font-size: 0.85rem;
}

.footer-inner a {
    font-weight: 700;
    text-decoration: none;
}

@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .toolbar {
        grid-template-columns: 1fr;
    }

    .filters {
        justify-content: flex-start;
    }

    .sample-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .nav,
    .hero,
    .main,
    .footer-inner {
        width: min(100% - 28px, 1180px);
    }

    .nav-links {
        display: none;
    }

    .support-callout {
        width: min(100% - 28px, 1180px);
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
    }

    .hero {
        padding: 50px 0 60px;
    }

    .hero h1 {
        font-size: 2.55rem;
    }

    .intro {
        align-items: flex-start;
        flex-direction: column;
    }

    .card-main,
    .card-actions {
        padding-right: 18px;
        padding-left: 18px;
    }

    .card-details summary {
        padding-right: 18px;
        padding-left: 18px;
    }

    .detail-content {
        padding-right: 18px;
        padding-left: 18px;
    }

    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
    }
}