:root {
    color-scheme: light;
    --bg: #eff5ff;
    --bg-2: #f8fbff;
    --surface: rgba(255, 255, 255, 0.78);
    --surface-strong: #ffffff;
    --surface-soft: rgba(31, 100, 255, 0.08);
    --text: #0f1b2d;
    --text-soft: #56657f;
    --text-faint: #7b89a2;
    --accent: #2563eb;
    --accent-strong: #1746b8;
    --accent-2: #0ea5a4;
    --accent-soft: rgba(37, 99, 235, 0.12);
    --success: #15966c;
    --warning: #c18312;
    --danger: #d84d67;
    --border: rgba(78, 103, 160, 0.14);
    --shadow: 0 28px 70px rgba(41, 79, 168, 0.14);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --radius-sm: 12px;
}

body[data-theme="dark"] {
    color-scheme: dark;
    --bg: #0c1524;
    --bg-2: #101b2d;
    --surface: rgba(18, 27, 43, 0.84);
    --surface-strong: #152033;
    --surface-soft: rgba(14, 165, 164, 0.08);
    --text: #eef4ff;
    --text-soft: #bfcae0;
    --text-faint: #8b9ab5;
    --accent: #76a7ff;
    --accent-strong: #a9c5ff;
    --accent-2: #39d0cb;
    --accent-soft: rgba(118, 167, 255, 0.14);
    --success: #67ddb1;
    --warning: #f1ba58;
    --danger: #ff91a7;
    --border: rgba(164, 190, 255, 0.12);
    --shadow: 0 34px 86px rgba(0, 0, 0, 0.32);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Plus Jakarta Sans", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.18), transparent 24%),
        radial-gradient(circle at top right, rgba(14, 165, 164, 0.12), transparent 22%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 36px 36px;
    opacity: 0.32;
}

button,
input,
select {
    font: inherit;
}

button {
    cursor: pointer;
}

[hidden] {
    display: none !important;
}

.setup-screen,
.app-shell {
    position: relative;
    z-index: 1;
}

.setup-screen {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.setup-shell,
.topbar,
.panel,
.setup-card,
.setup-copy,
.hero-card,
.summary-tile,
.metric-card,
.insight-box,
.history-item,
.result-grid div,
.result-card {
    border: 1px solid var(--border);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}

.setup-shell {
    width: min(1180px, 100%);
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.95fr);
    gap: 24px;
}

.setup-copy,
.setup-card,
.hero-card,
.panel {
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
}

.setup-copy {
    padding: 44px;
    min-height: 620px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background:
        radial-gradient(circle at top right, rgba(37, 99, 235, 0.16), transparent 24%),
        radial-gradient(circle at bottom left, rgba(14, 165, 164, 0.14), transparent 22%),
        var(--surface);
}

.setup-copy h1,
.hero-copy h1,
.section-heading h2,
.panel-header h3,
.result-main h4,
.insight-box h4,
.brand h2 {
    margin: 0;
    font-family: "Sora", sans-serif;
    letter-spacing: 0;
}

.setup-copy h1 {
    margin-top: 14px;
    font-size: clamp(2.8rem, 4vw, 4.6rem);
    line-height: 1.02;
    max-width: 10ch;
}

.hero-copy h1 {
    font-size: clamp(2rem, 3vw, 3.2rem);
    line-height: 1.06;
    max-width: 12ch;
}

.setup-text,
.section-heading p,
.panel-copy,
.hero-copy p,
.result-main p,
.summary-tile p,
.insight-box p,
.history-meta,
.history-empty {
    color: var(--text-soft);
}

.setup-text {
    max-width: 52ch;
    font-size: 1.04rem;
}

.setup-points {
    display: grid;
    gap: 14px;
    margin-top: 28px;
}

.setup-points div {
    padding: 16px 18px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.42);
    border: 1px solid rgba(255, 255, 255, 0.24);
}

.setup-points strong,
.summary-tile strong,
.metric-card strong,
.history-title {
    display: block;
    font-weight: 700;
}

.setup-points span {
    display: block;
    margin-top: 4px;
    color: var(--text-soft);
}

.setup-card,
.panel {
    padding: 28px;
}

.section-heading {
    margin-bottom: 22px;
}

.section-heading h2,
.panel-header h3 {
    font-size: clamp(1.55rem, 2vw, 2.1rem);
    line-height: 1.12;
}

.eyebrow {
    margin: 0 0 8px;
    font-size: 0.74rem;
    font-weight: 800;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.stack-form,
.metric-grid,
.history-list {
    display: grid;
    gap: 16px;
}

.grid-2,
.grid-3,
.summary-grid,
.main-grid {
    display: grid;
    gap: 16px;
}

.grid-2,
.summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field {
    display: grid;
    gap: 8px;
}

.field span,
.summary-tile span,
.metric-card span,
.result-grid span {
    color: var(--text-faint);
    font-size: 0.82rem;
    font-weight: 700;
}

.field input,
.field select,
.search-input {
    width: 100%;
    min-width: 0;
    padding: 14px 15px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--surface-strong);
    color: var(--text);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.field input:focus,
.field select:focus,
.search-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-soft);
    transform: translateY(-1px);
}

.inline-actions,
.topbar-actions,
.compact,
.history-actions,
.history-top,
.history-bottom,
.panel-header {
    display: flex;
    gap: 12px;
    align-items: center;
}

.panel-header {
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 18px;
}

.primary-button,
.secondary-button,
.ghost-button,
.history-button {
    border-radius: 999px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.primary-button,
.secondary-button,
.ghost-button {
    padding: 13px 18px;
    font-weight: 700;
    border: 0;
}

.primary-button {
    color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    box-shadow: 0 18px 34px rgba(37, 99, 235, 0.22);
}

.secondary-button {
    color: var(--text);
    background: var(--surface-strong);
    border: 1px solid var(--border);
}

.ghost-button,
.history-button {
    color: var(--text);
    background: transparent;
    border: 1px solid var(--border);
}

.primary-button:hover,
.secondary-button:hover,
.ghost-button:hover,
.history-button:hover {
    transform: translateY(-2px);
}

.app-shell {
    padding: 24px;
}

.topbar {
    max-width: 1240px;
    margin: 0 auto 22px;
    padding: 18px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--surface);
    border-radius: 22px;
    box-shadow: var(--shadow);
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-mark {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    position: relative;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.28);
}

.brand-mark span {
    position: absolute;
    inset: 11px;
    border: 2px solid rgba(255, 255, 255, 0.78);
    border-radius: 12px;
}

.brand h2 {
    font-size: 1.55rem;
    font-weight: 700;
}

.brand-copy .eyebrow {
    margin-bottom: 4px;
}

.layout {
    max-width: 1240px;
    margin: 0 auto;
}

.hero-band,
.history-section {
    margin-bottom: 22px;
}

.hero-card {
    padding: 28px;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.95fr);
    gap: 18px;
    align-items: center;
    background:
        radial-gradient(circle at top right, rgba(118, 167, 255, 0.18), transparent 22%),
        radial-gradient(circle at bottom left, rgba(57, 208, 203, 0.14), transparent 24%),
        var(--surface);
}

.summary-grid {
    align-self: stretch;
}

.summary-tile {
    padding: 18px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.56);
}

.summary-tile strong {
    margin: 10px 0 8px;
    font-size: 1.55rem;
}

.main-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.82fr);
    margin-bottom: 22px;
}

.status-pill {
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent);
    background: var(--accent-soft);
    white-space: nowrap;
}

.result-card {
    margin-top: 6px;
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
    gap: 16px;
    padding: 20px;
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(14, 165, 164, 0.08));
}

.result-main h4 {
    font-size: 1.28rem;
    line-height: 1.2;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.result-grid div,
.metric-card,
.insight-box,
.history-item {
    padding: 16px;
    border-radius: 18px;
    background: var(--surface-strong);
}

.result-grid strong,
.metric-card strong {
    display: block;
    margin-top: 8px;
    font-size: 1.2rem;
}

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

.insight-box h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    line-height: 1.25;
}

.compact {
    flex-wrap: wrap;
    justify-content: flex-end;
}

.search-input {
    min-width: 220px;
}

.history-list {
    max-height: 680px;
    overflow: auto;
    padding-right: 4px;
}

.history-item {
    display: grid;
    gap: 12px;
}

.history-top,
.history-bottom {
    justify-content: space-between;
    flex-wrap: wrap;
}

.history-title {
    font-size: 1rem;
}

.history-meta {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    font-size: 0.9rem;
}

.history-tag,
.severity-chip {
    padding: 7px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
}

.history-tag {
    color: var(--accent);
    background: var(--accent-soft);
}

.severity-low {
    color: var(--success);
    background: rgba(21, 150, 108, 0.12);
}

.severity-medium {
    color: var(--warning);
    background: rgba(193, 131, 18, 0.14);
}

.severity-high {
    color: var(--danger);
    background: rgba(216, 77, 103, 0.14);
}

.toast-region {
    position: fixed;
    right: 18px;
    bottom: 18px;
    display: grid;
    gap: 10px;
    z-index: 20;
}

.toast {
    min-width: 260px;
    max-width: 360px;
    padding: 14px 16px;
    border-radius: 16px;
    color: var(--text);
    background: var(--surface-strong);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    animation: toast-in 0.28s ease;
}

.toast strong {
    display: block;
    margin-bottom: 4px;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 1120px) {
    .setup-shell,
    .hero-card,
    .main-grid,
    .result-card {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 860px) {
    .setup-screen,
    .app-shell {
        padding: 14px;
    }

    .setup-copy,
    .setup-card,
    .panel,
    .hero-card {
        padding: 22px;
    }

    .topbar {
        flex-direction: column;
        align-items: stretch;
    }

    .topbar-actions,
    .inline-actions,
    .compact,
    .panel-header {
        flex-wrap: wrap;
    }

    .grid-2,
    .grid-3,
    .summary-grid,
    .result-grid {
        grid-template-columns: 1fr;
    }

    .search-input {
        min-width: 0;
    }

    .setup-copy {
        min-height: auto;
    }

    .setup-copy h1,
    .hero-copy h1 {
        max-width: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
}