:root {
    --brand-500: #6D28D9;
    --brand-400: #9F7AEA;
    --ink: #181030;
    --muted: #6B7280;
    --surface: rgba(255, 255, 255, 0.92);
    --surface-soft: rgba(255, 255, 255, 0.7);
    --surface-strong: rgba(255, 255, 255, 0.98);
    --accent-green: #10B981;
    --accent-red: #EF4444;
    --accent-amber: #F59E0B;
    --shadow-soft: 0 24px 48px rgba(24, 16, 48, 0.16);
    --radius-lg: 16px;
    --radius-md: 12px;
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --transition: 180ms ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--ink);
    background: radial-gradient(circle at top left, rgba(157, 120, 255, 0.45), transparent 45%),
        radial-gradient(circle at bottom right, rgba(109, 40, 217, 0.5), transparent 50%),
        linear-gradient(135deg, #EEF2FF, #F8FAFC);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='200' height='200' viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='rgba(157,122,234,0.08)' stroke-width='1'%3E%3Cpath d='M0 50 Q50 0 100 50 T200 50'/%3E%3Cpath d='M0 150 Q50 100 100 150 T200 150'/%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
    mix-blend-mode: overlay;
    opacity: 0.8;
}

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

button {
    font: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

img {
    max-width: 100%;
    display: block;
}

.shell {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(248, 250, 252, 0.65);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid rgba(109, 40, 217, 0.08);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 68px;
    gap: var(--spacing-md);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    font-size: 1.1rem;
}

.brand__logo {
    width: 40px;
    height: 40px;
    display: inline-block;
    object-fit: contain;
}

.brand__name {
    font-weight: 600;
}

.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--surface);
    border: 1px solid rgba(109, 40, 217, 0.1);
    transition: box-shadow var(--transition);
}

.nav-toggle:focus-visible {
    outline: 2px solid var(--brand-400);
    outline-offset: 2px;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--ink);
    position: relative;
    border-radius: 999px;
}

.nav-toggle span::before,
.nav-toggle span::after {
    content: "";
    position: absolute;
    left: 0;
}

.nav-toggle span::before {
    top: -6px;
}

.nav-toggle span::after {
    top: 6px;
}

.primary-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.primary-nav a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--muted);
    transition: color var(--transition);
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
    color: var(--brand-500);
    outline: none;
}

.lang-switch {
    display: inline-flex;
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-md);
    padding: 3px;
    border: 1px solid rgba(109, 40, 217, 0.12);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.lang-switch button {
    min-width: 56px;
    padding: 6px 10px;
    border-radius: 10px;
    font-weight: 600;
    color: var(--muted);
    transition: all var(--transition);
}

.lang-switch button[aria-pressed="true"] {
    background: linear-gradient(135deg, rgba(109, 40, 217, 0.15), rgba(159, 122, 234, 0.15));
    color: var(--brand-500);
    box-shadow: 0 1px 8px rgba(109, 40, 217, 0.24);
}

.hero {
    padding: clamp(80px, 14vw, 140px) 0 clamp(72px, 12vw, 120px);
}

.hero__grid {
    display: grid;
    gap: clamp(var(--spacing-xl), 6vw, 72px);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    align-items: start;
}

.hero-copy h1 {
    font-size: clamp(2.4rem, 4vw, 3.2rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
}

.hero-copy p {
    color: var(--muted);
    font-size: 1.05rem;
    max-width: 520px;
    margin-bottom: var(--spacing-lg);
}

.hero-support {
    color: var(--muted);
    font-size: 0.95rem;
}

.glass-panel {
    position: relative;
    padding: clamp(var(--spacing-lg), 3vw, var(--spacing-xl));
    border-radius: var(--radius-lg);
    background: var(--surface);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(109, 40, 217, 0.08);
}

.dropzone {
    border: 1.5px dashed rgba(109, 40, 217, 0.35);
    border-radius: var(--radius-lg);
    padding: clamp(var(--spacing-lg), 5vw, 56px);
    text-align: center;
    background: var(--surface-soft);
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.dropzone:hover,
.dropzone:focus-visible,
.dropzone.dragover {
    border-color: var(--brand-500);
    box-shadow: 0 0 0 4px rgba(109, 40, 217, 0.12);
    transform: translateY(-2px);
    outline: none;
}

.dropzone__icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    border-radius: 20px;
    display: grid;
    place-items: center;
    font-size: 1.8rem;
    background: linear-gradient(140deg, rgba(109, 40, 217, 0.15), rgba(159, 122, 234, 0.2));
    color: var(--brand-500);
}

.dropzone__title {
    font-weight: 600;
    font-size: 1.15rem;
    margin-bottom: var(--spacing-sm);
}

.dropzone__subtitle {
    color: var(--muted);
    margin-bottom: var(--spacing-sm);
}

.dropzone__hint {
    color: rgba(107, 114, 128, 0.8);
    font-size: 0.95rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
    margin-top: var(--spacing-lg);
}

.primary-btn {
    border-radius: 999px;
    padding: 12px 24px;
    background: linear-gradient(140deg, var(--brand-500), var(--brand-400));
    color: white;
    font-weight: 600;
    box-shadow: 0 15px 30px rgba(109, 40, 217, 0.25);
    transition: transform var(--transition), box-shadow var(--transition);
}

.primary-btn:hover,
.primary-btn:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 18px 36px rgba(109, 40, 217, 0.3);
    outline: none;
}

.ghost-btn {
    border-radius: 999px;
    padding: 11px 22px;
    border: 1px solid rgba(109, 40, 217, 0.2);
    color: var(--brand-500);
    font-weight: 600;
    background: rgba(255, 255, 255, 0.85);
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.ghost-btn:hover,
.ghost-btn:focus-visible {
    border-color: rgba(109, 40, 217, 0.4);
    background: rgba(109, 40, 217, 0.08);
    color: var(--brand-500);
    outline: none;
}

.ghost-btn:disabled,
.primary-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.status-area {
    margin-top: var(--spacing-md);
    min-height: 24px;
    font-size: 0.95rem;
    color: var(--muted);
}

.media-preview {
    margin-top: var(--spacing-lg);
    border-radius: var(--radius-md);
    background: var(--surface-strong);
    padding: var(--spacing-md);
    border: 1px solid rgba(109, 40, 217, 0.08);
}

.media-preview img {
    border-radius: var(--radius-md);
    width: 100%;
    object-fit: contain;
    max-height: 320px;
    background: rgba(15, 23, 42, 0.04);
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.progress-track {
    margin-top: var(--spacing-md);
    height: 12px;
    border-radius: 999px;
    background: rgba(109, 40, 217, 0.08);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(120deg, rgba(109, 40, 217, 0.8), rgba(159, 122, 234, 0.8));
    transition: width 220ms ease;
}

.loader {
    margin-top: var(--spacing-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--muted);
    font-size: 0.95rem;
}

.loader::before {
    content: "";
    width: 14px;
    height: 14px;
    border: 2px solid rgba(109, 40, 217, 0.35);
    border-top-color: var(--brand-500);
    border-radius: 50%;
    display: inline-block;
    animation: spin 1s linear infinite;
}

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

.error-message {
    margin-top: var(--spacing-md);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(239, 68, 68, 0.12);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.24);
}

.analysis-outcome {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    background: var(--surface-strong);
    border: 1px solid rgba(109, 40, 217, 0.08);
    display: grid;
    gap: var(--spacing-md);
}

.analysis-outcome[hidden] {
    display: none !important;
}

.verdict-chip {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    background: rgba(109, 40, 217, 0.08);
}

.verdict-chip.is-authentic {
    background: rgba(16, 185, 129, 0.12);
}

.verdict-chip.is-fake {
    background: rgba(239, 68, 68, 0.12);
}

.verdict-chip.is-inconclusive {
    background: rgba(245, 158, 11, 0.12);
}

.verdict-indicator {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--brand-500);
    box-shadow: 0 0 0 4px rgba(109, 40, 217, 0.12);
}

.verdict-chip.is-authentic .verdict-indicator {
    background: var(--accent-green);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.16);
}

.verdict-chip.is-fake .verdict-indicator {
    background: var(--accent-red);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.16);
}

.verdict-chip.is-inconclusive .verdict-indicator {
    background: var(--accent-amber);
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.16);
}

.verdict-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.verdict-label {
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.02em;
}

.verdict-summary {
    margin-block: 1rem;
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.95rem;
}

.details-raw {
    margin-block-start: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    max-width: 100%;
}

.details-raw summary {
    cursor: pointer;
    font-weight: 600;
    list-style: none;
    color: rgba(255, 255, 255, 0.85);
}

.details-raw[open] summary {
    margin-block-end: 0.75rem;
}

.details-raw summary::-webkit-details-marker {
    display: none;
}

.details-raw pre {
    max-width: 100%;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    font-size: 0.85rem;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.8);
}

.outcome-actions .ghost-btn {
    flex: 0 1 auto;
}

.section-title {
    font-size: clamp(1.9rem, 3vw, 2.4rem);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.info-grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.info-card {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(109, 40, 217, 0.1);
    box-shadow: 0 12px 30px rgba(24, 16, 48, 0.08);
}

.info-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.15rem;
}

.info-card p {
    color: var(--muted);
    font-size: 0.95rem;
}

.section {
    margin-top: clamp(96px, 14vw, 140px);
}

.privacy-card {
    padding: clamp(var(--spacing-lg), 6vw, 56px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(109, 40, 217, 0.12);
    background: var(--surface);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    box-shadow: 0 18px 44px rgba(24, 16, 48, 0.12);
    color: var(--muted);
}

.privacy-card h2 {
    color: var(--ink);
    margin-bottom: var(--spacing-md);
}

.faq-item {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(109, 40, 217, 0.12);
    background: rgba(255, 255, 255, 0.88);
    padding: var(--spacing-md) var(--spacing-lg);
}

.faq-item summary {
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    position: relative;
}

.faq-item summary::after {
    content: "+";
    position: absolute;
    right: 0;
    top: 0;
    font-size: 1.2rem;
    transition: transform var(--transition);
    color: var(--brand-500);
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item p {
    margin: var(--spacing-sm) 0 0;
    color: var(--muted);
}

footer {
    margin-top: clamp(96px, 14vw, 140px);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    border-top: 1px solid rgba(109, 40, 217, 0.1);
    background: rgba(255, 255, 255, 0.82);
}

.footer__inner {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
    text-align: center;
    color: var(--muted);
    font-size: 0.95rem;
}

.footer__links {
    display: inline-flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer__links a {
    color: inherit;
    transition: color var(--transition);
}

.footer__links a:hover,
.footer__links a:focus-visible {
    color: var(--brand-500);
    outline: none;
}

@media (max-width: 900px) {
    .primary-nav {
        position: fixed;
        inset: 70px 16px auto;
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
        padding: var(--spacing-lg);
        background: rgba(248, 250, 252, 0.95);
        border-radius: var(--radius-lg);
        border: 1px solid rgba(109, 40, 217, 0.12);
        box-shadow: 0 18px 44px rgba(24, 16, 48, 0.12);
        transform-origin: top right;
        transform: scale(0.95);
        opacity: 0;
        pointer-events: none;
        transition: transform var(--transition), opacity var(--transition);
    }

    .primary-nav.is-open {
        transform: scale(1);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-toggle {
        display: inline-flex;
    }
}

@media (max-width: 600px) {
    .shell {
        padding: 0 var(--spacing-md);
    }

    .controls,
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
}