:root {
    color-scheme: light;
    --ai-bg: #f7f5f1;
    --ai-surface: #ffffff;
    --ai-surface-muted: #f3f4ef;
    --ai-ink: #0f172a;
    --ai-ink-soft: #334155;
    --ai-muted: #475569;
    --ai-accent: #136b39;
    --ai-accent-strong: #0e8f4a;
    --ai-accent-soft: #dcf7e6;
    --ai-border: rgba(15, 23, 42, 0.08);
    --ai-border-strong: rgba(15, 23, 42, 0.16);
    --ai-shadow-soft: 0 12px 30px -20px rgba(15, 23, 42, 0.35);
    --ai-shadow: 0 24px 60px -32px rgba(15, 23, 42, 0.45);
}

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

body {
    font-family: 'Golos Text', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
    color: var(--ai-ink);
    background: var(--ai-bg);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

::selection {
    background: rgba(31, 191, 99, 0.25);
    color: #0b3b24;
}

a {
    color: inherit;
    text-decoration: none;
}

.ai-wrap {
    width: min(1200px, 100% - 2rem);
    margin: 0 auto;
}

.ai-ambient {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.ai-orb {
    position: absolute;
    border-radius: 999px;
    filter: blur(80px);
    opacity: 0.5;
    animation: ai-float 14s ease-in-out infinite;
}

.ai-orb-a {
    width: 440px;
    height: 440px;
    background: radial-gradient(circle, rgba(31, 191, 99, 0.35), transparent 70%);
    top: -120px;
    right: -80px;
}

.ai-orb-b {
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, rgba(224, 194, 122, 0.25), transparent 70%);
    bottom: -160px;
    left: -120px;
    animation-delay: 2s;
}

.ai-mesh {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(31, 191, 99, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(31, 191, 99, 0.05) 1px, transparent 1px);
    background-size: 64px 64px;
    opacity: 0.5;
}

.ai-topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(18px);
    background: rgba(248, 247, 244, 0.92);
    border-bottom: 1px solid var(--ai-border);
    box-shadow: 0 10px 30px -24px rgba(15, 23, 42, 0.5);
}

.ai-topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
    gap: 16px;
}

.ai-brand {
    font-family: 'Golos Display', 'Golos Text', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--ai-ink);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.ai-brand span {
    color: var(--ai-accent-strong);
}

.ai-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.ai-lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--ai-border);
}

.lang-btn {
    border: none;
    background: transparent;
    padding: 6px 10px;
    border-radius: 999px;
    font-weight: 600;
    font-family: inherit;
    font-size: 0.85rem;
    color: var(--ai-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}

.lang-btn.active {
    background: var(--ai-surface);
    color: var(--ai-ink);
    box-shadow: var(--ai-shadow-soft);
}

.ai-nav-link {
    padding: 8px 14px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ai-ink-soft);
    transition: color 0.2s ease;
}

.ai-nav-link:hover {
    color: var(--ai-accent-strong);
}

.ai-cta-btn {
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid var(--ai-border-strong);
    background: var(--ai-surface);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ai-ink);
    cursor: pointer;
    transition: all 0.2s ease;
}

.ai-cta-btn:hover {
    border-color: rgba(31, 191, 99, 0.45);
    color: var(--ai-accent-strong);
    box-shadow: var(--ai-shadow-soft);
}

.ai-theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid var(--ai-border-strong);
    background: var(--ai-surface);
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1rem;
}

.ai-theme-toggle:hover {
    border-color: rgba(31, 191, 99, 0.45);
    box-shadow: var(--ai-shadow-soft);
}

.ai-hero {
    padding: 100px 0 70px;
}

.ai-hero-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
}

.ai-hero-copy {
    max-width: 720px;
}

.ai-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 999px;
    background: rgba(31, 191, 99, 0.12);
    border: 1px solid rgba(31, 191, 99, 0.25);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--ai-accent-strong);
    margin-bottom: 18px;
}

.ai-hero-title {
    font-family: 'Golos Display', 'Golos Text', sans-serif;
    font-size: clamp(2.6rem, 4vw, 4.4rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
    color: var(--ai-ink);
}

.ai-lead {
    color: var(--ai-ink-soft);
    font-size: 1.05rem;
    margin-bottom: 28px;
    line-height: 1.7;
}

.ai-search-card {
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--ai-border);
    border-radius: 28px;
    padding: 28px;
    box-shadow: var(--ai-shadow);
    backdrop-filter: blur(18px);
}

.ai-search-form label {
    display: block;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--ai-ink-soft);
    margin-bottom: 10px;
}

.ai-input-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.ai-input-row input {
    flex: 1 1 240px;
    padding: 14px 18px;
    border-radius: 999px;
    border: 1px solid var(--ai-border-strong);
    background: #f7f7f2;
    font-family: inherit;
    font-size: 1rem;
    color: var(--ai-ink);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.ai-input-row input:focus {
    outline: none;
    border-color: var(--ai-accent);
    box-shadow: 0 0 0 4px rgba(31, 191, 99, 0.18);
}

.ai-submit {
    padding: 14px 26px;
    border-radius: 999px;
    border: none;
    background: var(--ai-accent);
    color: #ffffff;
    font-family: inherit;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 18px 40px -24px rgba(31, 191, 99, 0.6);
}

.ai-submit:hover {
    background: var(--ai-accent-strong);
    transform: translateY(-2px);
}

.ai-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.ai-helper {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--ai-muted);
    margin-top: 16px;
    align-items: center;
}

.ai-chip {
    border: 1px solid var(--ai-border);
    background: rgba(255, 255, 255, 0.7);
    padding: 6px 14px;
    border-radius: 999px;
    font-family: inherit;
    font-size: 0.8rem;
    color: var(--ai-ink-soft);
    cursor: pointer;
    transition: all 0.2s ease;
}

.ai-chip:hover {
    border-color: rgba(31, 191, 99, 0.45);
    color: var(--ai-accent-strong);
    background: var(--ai-accent-soft);
}

.ai-status {
    margin-top: 16px;
    font-size: 0.9rem;
    color: var(--ai-muted);
    min-height: 22px;
}

.ai-results {
    padding: 70px 0 100px;
}

.ai-results-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 20px;
    margin-bottom: 32px;
}

.ai-results-title {
    font-family: 'Golos Display', 'Golos Text', sans-serif;
    font-size: clamp(2rem, 3vw, 2.8rem);
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-top: 16px;
}

.ai-results-meta {
    color: var(--ai-muted);
    max-width: 320px;
    text-align: right;
    font-size: 0.95rem;
}

.ai-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.card {
    background: var(--ai-surface);
    border-radius: 24px;
    border: 1px solid var(--ai-border);
    padding: 22px;
    display: grid;
    gap: 14px;
    min-height: 220px;
    box-shadow: var(--ai-shadow-soft);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s ease;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--ai-shadow);
}

.card-head {
    display: flex;
    align-items: center;
    gap: 12px;
}

.card-logo {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: rgba(31, 191, 99, 0.1);
    display: grid;
    place-items: center;
    overflow: hidden;
    flex-shrink: 0;
}

.card-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card h4 {
    font-family: 'Golos Display', 'Golos Text', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.card p {
    color: var(--ai-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.card a {
    color: var(--ai-accent-strong);
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.card a:hover {
    color: var(--ai-accent);
}

.ai-footer {
    padding: 32px 0 48px;
    border-top: 1px solid var(--ai-border);
    color: var(--ai-muted);
}

.ai-footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 0.9rem;
}

[data-theme="dark"] {
    --ai-bg: #0b1f14;
    --ai-surface: #112218;
    --ai-surface-muted: #14291c;
    --ai-ink: #eef2f6;
    --ai-ink-soft: #c0cad6;
    --ai-muted: #9aa6b2;
    --ai-accent: #1fbf63;
    --ai-accent-strong: #34d87a;
    --ai-accent-soft: rgba(31, 191, 99, 0.15);
    --ai-border: rgba(238, 242, 246, 0.1);
    --ai-border-strong: rgba(238, 242, 246, 0.16);
    --ai-shadow: 0 30px 70px -45px rgba(0, 0, 0, 0.8);
    --ai-shadow-soft: 0 18px 40px -28px rgba(0, 0, 0, 0.6);
}

[data-theme="dark"] body {
    background:
        radial-gradient(900px 500px at 10% -5%, rgba(31, 191, 99, 0.12), transparent 60%),
        linear-gradient(180deg, #0b1f14 0%, #0f172a 60%, #0b1f14 100%);
}

[data-theme="dark"] .ai-topbar {
    background: rgba(11, 31, 20, 0.88);
    border-bottom-color: rgba(238, 242, 246, 0.08);
}

[data-theme="dark"] .ai-cta-btn,
[data-theme="dark"] .ai-theme-toggle {
    background: rgba(255, 255, 255, 0.08);
    color: var(--ai-ink);
    border-color: rgba(238, 242, 246, 0.16);
}

[data-theme="dark"] .ai-cta-btn:hover,
[data-theme="dark"] .ai-theme-toggle:hover {
    border-color: rgba(31, 191, 99, 0.5);
}

[data-theme="dark"] .ai-lang-switch {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(238, 242, 246, 0.12);
}

[data-theme="dark"] .lang-btn {
    color: var(--ai-muted);
}

[data-theme="dark"] .lang-btn.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--ai-ink);
}

[data-theme="dark"] .ai-nav-link {
    color: var(--ai-muted);
}

[data-theme="dark"] .ai-nav-link:hover {
    color: var(--ai-accent-strong);
}

[data-theme="dark"] .ai-search-card {
    background: rgba(17, 34, 24, 0.8);
    border-color: rgba(238, 242, 246, 0.1);
}

[data-theme="dark"] .ai-input-row input {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(238, 242, 246, 0.16);
    color: var(--ai-ink);
}

[data-theme="dark"] .ai-chip {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(238, 242, 246, 0.12);
    color: var(--ai-muted);
}

[data-theme="dark"] .ai-chip:hover {
    background: rgba(31, 191, 99, 0.15);
    border-color: rgba(31, 191, 99, 0.4);
    color: var(--ai-accent-strong);
}

[data-theme="dark"] .ai-mesh {
    opacity: 0.2;
}

[data-theme="dark"] .card {
    background: var(--ai-surface);
    border-color: rgba(238, 242, 246, 0.08);
}

[data-animate] {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes ai-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-18px); }
}

@media (max-width: 880px) {
    .ai-results-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .ai-results-meta {
        text-align: left;
        max-width: none;
    }

    .ai-controls {
        gap: 8px;
    }
}

@media (max-width: 640px) {
    .ai-hero {
        padding: 70px 0 50px;
    }

    .ai-search-card {
        padding: 20px;
    }

    .ai-nav-link {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}