@import "../../style.css";

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
}

.app {
    max-width: 1100px;
    margin: 48px auto;
    padding: 0 var(--space-3) var(--space-5);
}

.header {
    text-align: left;
    margin-bottom: var(--space-4);
}

.header h1 {
    margin: 0 0 var(--space-2);
    font-size: 30px;
    letter-spacing: 0.01em;
}

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

.panel {
    background: linear-gradient(140deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--space-4);
    margin-bottom: var(--space-4);
}

.inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-3);
}

.input-block {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.input-block label {
    font-weight: 600;
    color: var(--muted);
}

textarea {
    width: 100%;
    min-height: 220px;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    resize: vertical;
    font-size: 15px;
    line-height: 1.5;
    font-family: var(--font-mono);
    background: var(--bg-alt);
    color: var(--text);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

textarea:focus {
    outline: none;
    border-color: rgba(56, 189, 248, 0.7);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
    background: #0e192c;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.ghost-button {
    padding: 10px 16px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text);
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
}

.ghost-button:hover {
    border-color: rgba(56, 189, 248, 0.5);
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.45);
}

.ghost-button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.stats {
    margin-top: var(--space-4);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-2);
}

.stat {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--space-2) var(--space-3);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.stat .label {
    font-size: 11px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
}

.stat .value {
    font-size: 22px;
    font-weight: 700;
    color: #e0f2fe;
}

.result-panel h2 {
    margin: 0;
    font-size: 20px;
}

.result-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--space-2);
    align-items: center;
    margin-bottom: var(--space-2);
}

.result-meta {
    font-size: 13px;
    color: var(--muted);
}

.diff-output {
    border: 1px solid var(--border);
    border-radius: calc(var(--radius) - 4px);
    background: var(--panel-strong);
    padding: var(--space-2);
    max-height: 640px;
    overflow: auto;
}

.diff-head {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
    padding: 6px 6px var(--space-2);
    position: sticky;
    top: 0;
    background: var(--panel-strong);
    z-index: 1;
}

.diff-head-cell {
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--muted);
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: rgba(255, 255, 255, 0.03);
}

.diff-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.diff-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
    padding: 0 6px;
}

.diff-cell {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-height: 68px;
}

.diff-cell.same {
    background: rgba(255, 255, 255, 0.02);
}

.diff-cell.added {
    background: rgba(34, 211, 238, 0.12);
    border-color: rgba(34, 211, 238, 0.4);
}

.diff-cell.removed {
    background: rgba(248, 113, 113, 0.14);
    border-color: rgba(248, 113, 113, 0.4);
}

.diff-cell.empty {
    background: rgba(15, 23, 42, 0.35);
    border-style: dashed;
    color: var(--muted);
}

.diff-cell.moved {
    box-shadow: inset 3px 0 0 var(--move-color);
    border-color: var(--move-color);
}

.diff-row.is-target .diff-cell.moved {
    box-shadow: inset 3px 0 0 var(--move-color), 0 0 0 2px rgba(56, 189, 248, 0.4);
}

.cell-meta {
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}

.cell-body {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
}

.cell-text {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 13px;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--text);
    min-width: 0;
}

.cell-text .diff-remove {
    background: rgba(34, 211, 238, 0.22);
    color: #e0f2fe;
    border-radius: 6px;
    padding: 0 2px;
}

.cell-text .diff-add {
    background: rgba(248, 113, 113, 0.28);
    color: #fee2e2;
    border-radius: 6px;
    padding: 0 2px;
}

.cell-placeholder {
    font-size: 12px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.move-link {
    border-radius: 999px;
    border: 1px solid var(--move-color);
    background: rgba(255, 255, 255, 0.06);
    color: var(--move-color);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 4px 10px;
    cursor: pointer;
    flex-shrink: 0;
    transition: transform 0.15s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.move-link:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 14px rgba(15, 23, 42, 0.35);
}

.move-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.empty-state {
    padding: var(--space-4);
    text-align: center;
    color: var(--muted);
    font-size: 14px;
}

@media (max-width: 720px) {
    .app {
        margin: 32px 0;
        padding: 0 var(--space-3) var(--space-4);
    }

    .diff-row {
        grid-template-columns: 1fr;
    }

    .diff-head {
        display: none;
    }
}