:root {
    color-scheme: light;
    --bg: #f4f7ff;
    --text: #11203b;
    --muted: #59708f;
    --primary: #2f6df6;
    --primary-dark: #2158c9;
    --border: #d9e4ff;
    --card: #ffffff;
    --success: #228b5e;
    --danger: #b84040;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: linear-gradient(180deg, #f7faff 0%, var(--bg) 100%);
    color: var(--text);
}

img {
    max-width: 100%;
}

.hero {
    padding: 20px 20px 40px;
}

.hero__inner {
    max-width: 1180px;
    margin: 0 auto;
}

.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.brand {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 12px;
}

.nav-links a,
.text-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.hero__content {
    display: grid;
    gap: 24px;
    align-items: start;
    grid-template-columns: 1.1fr 0.9fr;
}

.hero__copy h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.05;
    margin: 8px 0 14px;
}

.eyebrow {
    color: var(--primary);
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 0.8rem;
}

.lead {
    font-size: 1.07rem;
    color: var(--muted);
    max-width: 680px;
}

.hero__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.hero__badges span {
    background: rgba(47, 109, 246, 0.08);
    color: var(--primary-dark);
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 0.9rem;
}

.hero__card,
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 24px;
    box-shadow: 0 18px 45px rgba(17, 32, 59, 0.06);
}

.hero__card {
    padding: 20px;
}

.drop-zone {
    border: 2px dashed var(--border);
    border-radius: 20px;
    padding: 28px 20px;
    text-align: center;
    background: linear-gradient(180deg, rgba(47, 109, 246, 0.03), rgba(47, 109, 246, 0.08));
    transition: border-color 0.2s ease, transform 0.2s ease;
    cursor: pointer;
}

.drop-zone.dragover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.drop-zone__icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.drop-zone__title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 6px;
}

.drop-zone__subtitle,
.muted {
    color: var(--muted);
    margin: 0;
}

.toolbar {
    display: flex;
    gap: 12px;
    margin: 14px 0;
    flex-wrap: wrap;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1 1 180px;
    font-weight: 600;
    font-size: 0.95rem;
}

select,
button {
    font: inherit;
}

select {
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #fff;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border: none;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 700;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

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

.btn:disabled {
    cursor: not-allowed;
    opacity: 0.65;
    transform: none;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: rgba(47, 109, 246, 0.12);
    color: var(--primary);
}

.selection-panel {
    border-top: 1px solid #edf3ff;
    padding-top: 14px;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.panel-header h2 {
    font-size: 1rem;
    margin: 0;
}

.file-list,
.results-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.file-list li,
.results-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid #f0f4ff;
}

.file-list li:last-child,
.results-list li:last-child {
    border-bottom: none;
}

.file-name {
    overflow-wrap: anywhere;
}

.remove-link {
    color: var(--danger);
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
    font-weight: 600;
}

.content {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 20px 40px;
    display: grid;
    gap: 24px;
}

.card {
    padding: 24px;
}

.card__header h2 {
    margin: 0 0 8px;
    font-size: 1.3rem;
}

.card__header p {
    margin: 0;
    color: var(--muted);
}

.benefits {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    margin-top: 16px;
}

.benefits article {
    border: 1px solid #edf3ff;
    border-radius: 18px;
    padding: 16px;
    background: #fbfdff;
}

.benefits h3 {
    margin-top: 0;
    margin-bottom: 6px;
}

.results-actions {
    margin: 16px 0;
}

.status-messages {
    display: grid;
    gap: 8px;
    margin-bottom: 12px;
}

.status {
    padding: 10px 12px;
    border-radius: 12px;
    font-size: 0.95rem;
}

.status.success {
    background: rgba(34, 139, 94, 0.12);
    color: var(--success);
}

.status.error {
    background: rgba(184, 64, 64, 0.12);
    color: var(--danger);
}

.status.info {
    background: rgba(47, 109, 246, 0.1);
    color: var(--primary-dark);
}

.faq-list {
    display: grid;
    gap: 12px;
    margin-top: 16px;
}

.faq-list details {
    border: 1px solid #edf3ff;
    border-radius: 14px;
    padding: 12px 14px;
    background: #fbfdff;
}

.faq-list summary {
    cursor: pointer;
    font-weight: 600;
}

.faq-list p {
    margin: 8px 0 0;
    color: var(--muted);
}

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

@media (max-width: 640px) {
    .hero {
        padding: 16px 16px 28px;
    }

    .toolbar {
        flex-direction: column;
    }

    .card,
    .hero__card {
        padding: 18px;
    }
}