:root {
    color-scheme: light dark;
    --color-bg: #f0f4f8;
    --color-surface: #ffffff;
    --color-border: #d5dde8;
    --color-text: #15202b;
    --color-text-muted: #5c6b7a;
    --color-primary: #0d9488;
    --color-primary-soft: #ccfbf1;
    --color-primary-contrast: #ffffff;
    --color-success: #059669;
    --color-error: #dc2626;
    --color-warning: #d97706;
    --radius: 14px;
    --shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

:root[data-theme="dark"] {
    --color-bg: #0f1419;
    --color-surface: #1a222c;
    --color-border: #2a3542;
    --color-text: #e8edf2;
    --color-text-muted: #94a3b8;
    --color-primary: #2dd4bf;
    --color-primary-soft: rgba(45, 212, 191, 0.12);
    --color-primary-contrast: #0f1419;
    --color-success: #34d399;
    --color-error: #f87171;
    --color-warning: #fbbf24;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-bg: #0f1419;
        --color-surface: #1a222c;
        --color-border: #2a3542;
        --color-text: #e8edf2;
        --color-text-muted: #94a3b8;
        --color-primary: #2dd4bf;
        --color-primary-soft: rgba(45, 212, 191, 0.12);
        --color-primary-contrast: #0f1419;
        --color-success: #34d399;
        --color-error: #f87171;
        --color-warning: #fbbf24;
        --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: "Vazirmatn", Tahoma, sans-serif;
    line-height: 1.7;
}

.page {
    max-width: 680px;
    margin: 0 auto;
    padding: 2.5rem 1.25rem 4rem;
}

.page__header {
    position: relative;
    text-align: center;
    margin-bottom: 2rem;
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    margin-bottom: 0.75rem;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--color-primary), #14b8a6);
    color: #fff;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.04em;
    box-shadow: var(--shadow);
}

.page__title {
    font-size: 1.9rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
}

.page__subtitle {
    color: var(--color-text-muted);
    margin: 0 auto;
    max-width: 28rem;
    font-size: 0.95rem;
}

.page__footer {
    margin-top: 3rem;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.theme-toggle {
    position: absolute;
    top: 0;
    left: 0;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    cursor: pointer;
    font-size: 1.1rem;
}

.theme-toggle:hover {
    border-color: var(--color-primary);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.dropzone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    padding: 2.5rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease, transform 0.15s ease;
    box-shadow: var(--shadow);
}

.dropzone:hover,
.dropzone:focus-visible {
    border-color: var(--color-primary);
    outline: none;
    transform: translateY(-1px);
}

.dropzone.is-dragover {
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
}

.dropzone__icon {
    width: 3rem;
    height: 3rem;
    margin: 0 auto 0.75rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    font-size: 1.4rem;
    font-weight: 700;
}

.dropzone__text {
    margin: 0 0 0.35rem;
    font-weight: 600;
}

.dropzone__hint {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.results {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.result-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    box-shadow: var(--shadow);
    padding: 1rem 1.25rem;
}

.result-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.result-card__filename {
    font-weight: 600;
    word-break: break-all;
}

.result-card__status {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.15rem 0.6rem;
    border-radius: 999px;
    white-space: nowrap;
    background: var(--color-border);
    color: var(--color-text-muted);
}

.result-card__status.is-uploading {
    background: var(--color-primary-soft);
    color: var(--color-primary);
}

.result-card__status.is-success {
    background: color-mix(in srgb, var(--color-success) 15%, transparent);
    color: var(--color-success);
}

.result-card__status.is-error {
    background: color-mix(in srgb, var(--color-error) 15%, transparent);
    color: var(--color-error);
}

.result-card__progress {
    margin-top: 0.75rem;
    height: 6px;
    border-radius: 999px;
    background: var(--color-border);
    overflow: hidden;
}

.result-card__progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-primary), #14b8a6);
    transition: width 0.15s ease;
}

.result-card__meta {
    margin: 0.85rem 0 0;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.35rem 0.75rem;
    font-size: 0.85rem;
}

.result-card__meta dt {
    color: var(--color-text-muted);
}

.result-card__meta dd {
    margin: 0;
    word-break: break-all;
}

.result-card__error {
    margin-top: 0.75rem;
    color: var(--color-error);
    font-size: 0.9rem;
}

.result-card__actions {
    margin-top: 0.85rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.result-card__actions button {
    font: inherit;
    font-size: 0.8rem;
    padding: 0.35rem 0.7rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text);
    cursor: pointer;
}

.result-card__actions button:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.result-card__json {
    margin-top: 0.85rem;
    max-height: 220px;
    overflow: auto;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 0.75rem;
    font-size: 0.75rem;
    white-space: pre-wrap;
    word-break: break-all;
    display: none;
}

.result-card__json.is-visible {
    display: block;
}