:root {
    color-scheme: light dark;
    --bg: #ffffff;
    --fg: #1b1e23;
    --muted: #6b7280;
    --border: #e2e5e9;
    --accent: #3b5bdb;
    --accent-fg: #ffffff;
    --danger: #c92a2a;
    --surface: #f6f7f9;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #14161a;
        --fg: #e7e9ec;
        --muted: #9aa1ac;
        --border: #2a2e35;
        --accent: #6a8dff;
        --accent-fg: #0c1020;
        --danger: #ff6b6b;
        --surface: #1c1f25;
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.5;
}

main {
    max-width: 860px;
    margin: 0 auto;
    padding: 1.5rem 1rem 4rem;
}

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

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

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

h1 {
    margin-top: 0;
}

.button {
    display: inline-block;
    padding: 0.5rem 0.9rem;
    border-radius: 6px;
    background: var(--accent);
    color: var(--accent-fg);
    text-decoration: none;
    border: none;
    font-size: 0.95rem;
    cursor: pointer;
}

.button-danger {
    background: var(--danger);
}

.button-link {
    background: none;
    border: none;
    padding: 0;
    color: var(--accent);
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: underline;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.empty-state {
    color: var(--muted);
}

.solves-table {
    width: 100%;
    border-collapse: collapse;
}

.solves-table th,
.solves-table td {
    text-align: left;
    padding: 0.6rem 0.5rem;
    border-bottom: 1px solid var(--border);
}

.solves-table th {
    color: var(--muted);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.row-actions a {
    margin-right: 0.75rem;
}

.preview-cell {
    width: 6rem;
}

.preview-thumb {
    display: block;
    width: 6rem;
    height: 6rem;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--border);
}

.dropzone {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 6rem;
    height: 6rem;
    border-radius: 6px;
    border: 1px dashed var(--border);
    color: var(--muted);
    text-align: center;
    font-size: 0.75rem;
    line-height: 1.2;
    padding: 0.3rem;
    cursor: pointer;
}

.dropzone.dropzone-active {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--surface);
}

.dropzone.dropzone-busy {
    opacity: 0.6;
    cursor: default;
}

.dropzone.dropzone-error {
    border-color: var(--danger);
    color: var(--danger);
}

.solve-details {
    display: grid;
    grid-template-columns: 10rem 1fr;
    gap: 0.5rem 1rem;
    margin: 1.5rem 0;
}

.solve-details dt {
    color: var(--muted);
}

.solve-details dd {
    margin: 0;
}

.notes {
    white-space: pre-wrap;
}

.screenshot img,
.current-screenshot img {
    max-width: 100%;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.current-screenshot {
    margin-bottom: 0.5rem;
}

.solve-form {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
    max-width: 32rem;
}

.field label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.field .hint {
    font-weight: 400;
    color: var(--muted);
    font-size: 0.85rem;
}

.field input[type="text"],
.field input[type="date"],
.field input[type="url"],
.field input[type="number"],
.field textarea {
    width: 100%;
    padding: 0.5rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--surface);
    color: var(--fg);
    font-size: 1rem;
    font-family: inherit;
}

.field input[type="file"] {
    display: block;
    margin-top: 0.3rem;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 400;
    margin-top: 0.4rem;
}

.field-error {
    color: var(--danger);
    font-size: 0.85rem;
    margin: 0.3rem 0 0;
}

.actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-top: 0.5rem;
}