:root {
    color-scheme: dark;
    --bg: #09111f;
    --bg-soft: #101b2e;
    --panel: rgba(12, 22, 41, 0.88);
    --panel-border: rgba(148, 163, 184, 0.18);
    --text: #e5eefc;
    --muted: #99a7c2;
    --accent: #6ea8fe;
    --accent-strong: #8b5cf6;
    --success: #4ade80;
    --warning: #fbbf24;
    --danger: #fca5a5;
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.32);
    --radius: 20px;
}

:root[data-theme="light"] {
    color-scheme: light;
    --bg: #f4f8ff;
    --bg-soft: #ffffff;
    --panel: rgba(255, 255, 255, 0.95);
    --panel-border: rgba(15, 23, 42, 0.08);
    --text: #162033;
    --muted: #5c6c87;
    --accent: #235bff;
    --accent-strong: #7c3aed;
    --success: #15803d;
    --warning: #b45309;
    --danger: #b91c1c;
    --shadow: 0 18px 48px rgba(15, 23, 42, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(110, 168, 254, 0.18), transparent 30%),
        radial-gradient(circle at top right, rgba(139, 92, 246, 0.16), transparent 22%),
        var(--bg);
    color: var(--text);
    font: 16px/1.5 Inter, "Segoe UI", Roboto, Arial, sans-serif;
}

a {
    color: var(--accent);
}

button,
input,
select {
    font: inherit;
}

code {
    padding: 0.1rem 0.35rem;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.14);
}

.page-shell {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

.app-ad,
.hero,
.search-panel,
.summary-card,
.results-panel,
.side-card,
.info-card,
.result-card {
    backdrop-filter: blur(18px);
    background: var(--panel);
    border: 1px solid var(--panel-border);
    box-shadow: var(--shadow);
}

.hero {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    padding: 32px;
    border-radius: 28px;
}

.app-ad {
    margin-top: 20px;
    padding: 18px 22px;
    border-radius: 22px;
}

.promo-copy,
.app-ad-label,
.ft-ads-label,
.ft-ads-note {
    margin: 6px 0 0;
    color: var(--muted);
}

.app-ad-label,
.ft-ads-label {
    font-size: 0.84rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.eyebrow {
    display: inline-flex;
    margin-bottom: 12px;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    color: var(--accent);
    background: rgba(110, 168, 254, 0.12);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.hero h1,
.results-toolbar h2,
.side-card h2,
.info-card h2 {
    margin: 0 0 12px;
    line-height: 1.1;
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 4rem);
}

.hero-text {
    max-width: 62ch;
    color: var(--muted);
    font-size: 1.05rem;
}

.hero-actions,
.example-row,
.results-toolbar,
.search-actions,
.toggle-row,
.result-main,
.result-actions,
.results-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.hero-card {
    display: grid;
    gap: 16px;
    align-content: start;
}

.hero-mini-grid,
.quick-start-grid {
    display: grid;
    gap: 16px;
}

.hero-mini-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 18px;
}

.hero-mini-card,
.quick-start-card {
    padding: 18px;
    border-radius: 18px;
    border: 1px solid var(--panel-border);
    background: rgba(148, 163, 184, 0.08);
}

.hero-mini-card strong,
.quick-start-card h3 {
    display: block;
    margin-bottom: 8px;
}

.hero-mini-card p,
.quick-start-card p {
    margin: 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.hero-stat,
.summary-card {
    padding: 18px;
    border-radius: 18px;
}

.hero-stat {
    background: rgba(148, 163, 184, 0.08);
    border: 1px solid var(--panel-border);
}

.hero-stat-label,
.summary-label,
.field-hint,
.results-subtitle,
.muted,
.definition-meta,
.history-item span {
    color: var(--muted);
}

.theme-toggle,
.primary-button,
.ghost-button,
.example-chip,
.icon-button,
.history-item {
    border: 0;
    border-radius: 14px;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.theme-toggle,
.ghost-button,
.example-chip,
.icon-button,
.history-item {
    padding: 0.75rem 1rem;
    color: var(--text);
    background: rgba(148, 163, 184, 0.1);
    border: 1px solid var(--panel-border);
}

.primary-button {
    padding: 0.95rem 1.3rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}

.secondary-link {
    padding: 0.75rem 0;
    text-decoration: none;
}

.layout {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
    gap: 24px;
    margin-top: 24px;
}

.main-column,
.side-column,
.summary-grid,
.filters-grid,
.info-section,
.results-grid {
    display: grid;
    gap: 18px;
}

.search-panel,
.results-panel,
.side-card,
.info-card {
    padding: 24px;
    border-radius: 24px;
}

.search-row {
    display: grid;
    grid-template-columns: minmax(0, 2.2fr) repeat(3, minmax(160px, 1fr));
    gap: 16px;
}

.filters-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

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

.field label {
    font-weight: 700;
}

.field input,
.field select {
    width: 100%;
    padding: 0.95rem 1rem;
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    color: var(--text);
    background: rgba(9, 17, 31, 0.22);
}

:root[data-theme="light"] .field input,
:root[data-theme="light"] .field select {
    background: rgba(244, 248, 255, 0.92);
}

.field-main input {
    font-size: 1.1rem;
}

.filters-panel {
    margin-top: 18px;
}

.filters-panel summary {
    cursor: pointer;
    font-weight: 700;
    margin-bottom: 18px;
}

.toggle-row label {
    display: inline-flex;
    gap: 8px;
    align-items: center;
}

.feedback {
    margin-top: 18px;
}

.feedback-error,
.feedback-neutral {
    margin: 0;
    padding: 0.85rem 1rem;
    border-radius: 14px;
}

.feedback-error {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.16);
}

.feedback-neutral {
    background: rgba(110, 168, 254, 0.08);
    border: 1px solid rgba(110, 168, 254, 0.16);
}

.summary-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin: 18px 0;
}

.quick-start-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-bottom: 18px;
}

.summary-card strong {
    display: block;
    margin-top: 10px;
    font-size: 1.15rem;
}

.results-toolbar {
    justify-content: space-between;
    margin-bottom: 18px;
}

.results-subtitle {
    margin: 0;
}

.results-grid {
    min-height: 220px;
}

.result-card {
    padding: 18px;
    border-radius: 20px;
}

.result-card h3 {
    margin: 0 0 4px;
    font-size: 1.45rem;
}

.result-meta,
.definition-preview {
    margin: 0;
}

.result-actions {
    justify-content: flex-end;
}

.icon-button.is-favourite {
    border-color: rgba(251, 191, 36, 0.45);
    color: var(--warning);
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 14px 0 12px;
}

.tag {
    display: inline-flex;
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    font-size: 0.88rem;
    color: var(--accent);
    background: rgba(110, 168, 254, 0.12);
}

.loading-state,
.empty-state {
    display: grid;
    place-items: center;
    gap: 10px;
    padding: 36px;
    text-align: center;
    border-radius: 18px;
    background: rgba(148, 163, 184, 0.08);
    border: 1px dashed var(--panel-border);
}

.empty-state ul {
    margin: 0;
    padding-left: 18px;
    text-align: left;
}

.spinner {
    width: 38px;
    height: 38px;
    border: 4px solid rgba(148, 163, 184, 0.25);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.9s linear infinite;
}

.history-item {
    display: grid;
    width: 100%;
    gap: 4px;
    margin-bottom: 10px;
    text-align: left;
}

.compact-list {
    margin: 0;
    padding-left: 18px;
}

.definition-card h3 {
    margin: 0 0 8px;
    font-size: 1.4rem;
}

button:hover,
button:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible {
    outline: none;
    transform: translateY(-1px);
    border-color: rgba(110, 168, 254, 0.45);
    box-shadow: 0 0 0 4px rgba(110, 168, 254, 0.15);
}

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

@media (max-width: 1120px) {
    .hero,
    .layout {
        grid-template-columns: 1fr;
    }

    .search-row,
    .filters-grid,
    .summary-grid,
    .hero-mini-grid,
    .quick-start-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .page-shell {
        padding: 16px;
    }

    .hero,
    .search-panel,
    .results-panel,
    .side-card,
    .info-card,
    .app-ad {
        padding: 18px;
        border-radius: 20px;
    }

    .search-row,
    .filters-grid,
    .summary-grid,
    .hero-mini-grid,
    .quick-start-grid {
        grid-template-columns: 1fr;
    }

    .results-toolbar,
    .result-main {
        flex-direction: column;
        align-items: flex-start;
    }

    .result-actions {
        width: 100%;
        justify-content: flex-start;
    }
}