/* Theme variables */
:root, [data-theme="dark"] {
    --bg: #0f1923;
    --bg-card: #1a2733;
    --bg-input: #162029;
    --border: #263544;
    --border-hover: #4fc3f7;
    --text: #e0e0e0;
    --text-muted: #78909c;
    --text-label: #90a4ae;
    --text-secondary: #b0bec5;
    --text-dim: #546e7a;
    --accent: #0288d1;
    --accent-hover: #039be5;
    --accent-text: #4fc3f7;
    --success: #2e7d32;
    --success-hover: #388e3c;
    --success-text: #66bb6a;
    --error: #ef5350;
    --error-bg: #1e1010;
    --error-border: #5c2020;
    --error-text: #ef9a9a;
    --warn-bg: #2a1f00;
    --warn-border: #5c4a00;
    --warn-text: #ffa726;
    --btn-disabled-bg: #37474f;
    --btn-disabled-text: #607d8b;
    --border-light: #1e3040;
    --border-dark: #37474f;
    --scrollbar: #37474f;
}

[data-theme="light"] {
    --bg: #f0f2f5;
    --bg-card: #ffffff;
    --bg-input: #f5f7fa;
    --border: #d0d7de;
    --border-hover: #0288d1;
    --text: #1f2937;
    --text-muted: #6b7280;
    --text-label: #4b5563;
    --text-secondary: #374151;
    --text-dim: #9ca3af;
    --accent: #0288d1;
    --accent-hover: #0277bd;
    --accent-text: #0277bd;
    --success: #2e7d32;
    --success-hover: #1b5e20;
    --success-text: #2e7d32;
    --error: #d32f2f;
    --error-bg: #fef2f2;
    --error-border: #fca5a5;
    --error-text: #b91c1c;
    --warn-bg: #fffbeb;
    --warn-border: #fcd34d;
    --warn-text: #b45309;
    --btn-disabled-bg: #d1d5db;
    --btn-disabled-text: #9ca3af;
    --border-light: #e5e7eb;
    --border-dark: #d0d7de;
    --scrollbar: #c0c8d0;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 40px 20px;
    transition: background 0.3s, color 0.3s;
}

.container { max-width: 700px; width: 100%; }

.title-row {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 30px;
    position: relative;
}

h1 {
    text-align: center;
    font-size: 2rem;
    color: var(--text);
    font-weight: 600;
}

h2 {
    font-size: 1.25rem;
    margin-bottom: 16px;
    color: var(--text-secondary);
    font-weight: 500;
}

.hint { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 16px; }

.shortcut-hint { margin-top: 10px; text-align: right; font-size: 0.8rem; }
kbd {
    background: var(--bg-input);
    border: 1px solid var(--border-dark);
    border-radius: 3px;
    padding: 1px 6px;
    font-size: 0.8rem;
    font-family: inherit;
}

.step {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 28px;
    margin-bottom: 20px;
    border: 1px solid var(--border);
    display: none;
    transition: background 0.3s, border-color 0.3s;
}
.step.active, .step[style*="display"] { display: block; }

/* Theme toggle */
.btn-icon {
    background: none;
    border: 1px solid var(--border-dark);
    color: var(--text-muted);
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}
.btn-icon:hover { border-color: var(--border-hover); color: var(--text); }
#btn-theme { position: absolute; right: 0; }

/* Drop zone */
.drop-zone {
    border: 2px dashed var(--border-dark);
    border-radius: 10px;
    padding: 50px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--bg-input);
}
.drop-zone:hover, .drop-zone.drag-over { border-color: var(--border-hover); }
.drop-icon { font-size: 2.5rem; display: block; margin-bottom: 10px; }
.drop-zone p { color: var(--text-muted); font-size: 0.95rem; }

/* File list */
.file-list {
    margin-top: 16px;
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-input);
}

.file-list-item {
    display: flex;
    align-items: center;
    padding: 8px 14px;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.9rem;
    transition: background 0.15s;
}
.file-list-item:last-child { border-bottom: none; }
.file-list-item.dragging { opacity: 0.4; }
.file-list-item.drag-over-item { border-top: 2px solid var(--accent-text); }

.file-list-item .drag-handle {
    cursor: grab;
    color: var(--text-dim);
    margin-right: 10px;
    font-size: 1rem;
    user-select: none;
}
.file-list-item .drag-handle:active { cursor: grabbing; }
.file-list-item .name { color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.file-list-item .file-info { color: var(--text-dim); margin-left: 12px; white-space: nowrap; font-size: 0.8rem; }
.file-list-item .remove {
    color: var(--error);
    cursor: pointer;
    margin-left: 12px;
    font-size: 1.1rem;
    background: none;
    border: none;
    padding: 0 4px;
}
.file-list-item .remove:hover { opacity: 0.7; }
.file-list-item .download-single {
    color: var(--accent-text);
    cursor: pointer;
    margin-left: 8px;
    font-size: 0.85rem;
    background: none;
    border: none;
    text-decoration: underline;
}
.file-list-item .download-single:hover { opacity: 0.7; }

/* Progress bar */
.progress-bar {
    background: var(--bg-input);
    border-radius: 8px;
    height: 28px;
    overflow: hidden;
    border: 1px solid var(--border);
    margin: 12px 0;
}
.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #0288d1, #4fc3f7);
    border-radius: 8px;
    width: 0%;
    transition: width 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    color: #fff;
    min-width: 0;
}

.status-text { color: var(--text-muted); font-size: 0.85rem; margin-top: 6px; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: all 0.2s;
    margin-top: 16px;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { background: var(--btn-disabled-bg); color: var(--btn-disabled-text); cursor: not-allowed; }
.btn-success { background: var(--success); color: #fff; font-size: 1.1rem; padding: 14px 36px; }
.btn-success:hover { background: var(--success-hover); }
.btn-secondary { background: transparent; color: var(--text-muted); border: 1px solid var(--border-dark); margin-left: 12px; }
.btn-secondary:hover { border-color: var(--text-dim); color: var(--text-secondary); }
.btn-sm { padding: 6px 14px; font-size: 0.85rem; margin-top: 0; }

.button-row { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; }

.btn-browse { background: var(--border); color: var(--text-secondary); border: 1px solid var(--border-dark); margin-top: 0; }
.btn-browse:hover { color: var(--text); }

/* Form elements */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 8px; color: var(--text-label); font-size: 0.9rem; }

select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-dark);
    border-radius: 8px;
    color: var(--text);
    font-size: 1rem;
    cursor: pointer;
}

/* Custom select with flags */
.custom-select { position: relative; width: 100%; }
.select-selected {
    background: var(--bg-input);
    border: 1px solid var(--border-dark);
    border-radius: 8px;
    padding: 10px 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-size: 1rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2378909c' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
}
.select-selected:hover { border-color: var(--border-hover); }
.select-selected img.flag-icon, .select-item img.flag-icon, .info-box img.flag-icon {
    width: 24px; height: 18px; border-radius: 2px; object-fit: cover; flex-shrink: 0;
}
.info-box img.flag-icon { vertical-align: middle; margin-right: 4px; }
.select-items {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    border-radius: 8px;
    margin-top: 4px;
    max-height: 280px;
    overflow-y: auto;
    z-index: 100;
}
.select-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: background 0.15s;
}
.select-item:hover { background: var(--border); color: var(--text); }
.select-item.active { background: #0d3a5c; color: var(--accent-text); }

/* Info / warning boxes */
.info-box {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: var(--text-label);
}
.info-box strong { color: var(--accent-text); }

.warning-box {
    background: var(--warn-bg);
    border: 1px solid var(--warn-border);
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: var(--warn-text);
}

/* File status list (translation progress) */
.file-status-list { margin-top: 16px; }
.file-status-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.88rem;
    flex-wrap: wrap;
}
.file-status-item:last-child { border-bottom: none; }
.file-status-item .fname { color: var(--text-secondary); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-status-item .fstatus { margin-left: 12px; white-space: nowrap; font-weight: 500; }
.file-status-item .retry-btn {
    margin-left: 8px;
    background: none;
    border: 1px solid var(--warn-border);
    color: var(--warn-text);
    cursor: pointer;
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
}
.file-status-item .retry-btn:hover { background: var(--warn-bg); }

.fstatus.pending { color: var(--text-dim); }
.fstatus.translating { color: var(--warn-text); }
.fstatus.done { color: var(--success-text); }
.fstatus.error { color: var(--error); cursor: help; }

.file-error-detail { width: 100%; font-size: 0.8rem; color: var(--error); padding: 4px 0 2px; opacity: 0.85; }

.error-summary {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    border-radius: 8px;
    padding: 12px 16px;
    margin-top: 16px;
    font-size: 0.9rem;
    color: var(--error-text);
}
.error-summary strong { color: var(--error); }
.error-summary ul { margin: 8px 0 0 18px; list-style: disc; }
.error-summary li { margin-bottom: 4px; }

/* Edit toolbar */
.edit-toolbar {
    display: flex;
    gap: 8px;
    align-items: flex-end;
    margin-bottom: 12px;
}

/* Search & Replace */
.search-replace-bar {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
}
.search-field {
    flex: 1;
    min-width: 120px;
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-dark);
    border-radius: 6px;
    color: var(--text);
    font-size: 0.9rem;
}
.search-field:focus { outline: none; border-color: var(--border-hover); }
.search-count { color: var(--text-dim); font-size: 0.8rem; white-space: nowrap; }

/* Edit container */
.edit-container {
    max-height: 500px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-input);
    margin-bottom: 16px;
}
.edit-block {
    display: flex;
    gap: 12px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-light);
    align-items: flex-start;
}
.edit-block:last-child { border-bottom: none; }
.edit-block.search-highlight { background: rgba(79,195,247,0.08); }

.edit-index { color: var(--text-dim); font-size: 0.8rem; min-width: 36px; padding-top: 6px; text-align: right; flex-shrink: 0; }
.edit-timestamp { color: var(--accent-text); font-size: 0.75rem; min-width: 200px; padding-top: 7px; flex-shrink: 0; font-family: monospace; }
.edit-text {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    border-radius: 6px;
    color: var(--text);
    font-size: 0.9rem;
    padding: 6px 10px;
    resize: vertical;
    min-height: 32px;
    font-family: inherit;
    line-height: 1.4;
}
.edit-text:focus { outline: none; border-color: var(--border-hover); }
.edit-text-col { flex: 1; min-width: 0; }
.edit-original { font-size: 0.8rem; color: var(--text-dim); margin-bottom: 4px; font-style: italic; line-height: 1.3; }

.edit-block.untranslated { background: var(--warn-bg); border-left: 3px solid var(--warn-text); margin: 0 -14px; padding: 10px 14px; }
.untranslated-badge {
    display: inline-block;
    background: var(--warn-border);
    color: var(--warn-text);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Batch rename */
.rename-row {
    display: flex;
    align-items: center;
    gap: 6px;
}
.rename-field {
    width: 120px;
    padding: 8px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border-dark);
    border-radius: 6px;
    color: var(--text);
    font-size: 0.9rem;
}
.rename-field:focus { outline: none; border-color: var(--border-hover); }
.rename-sample { color: var(--text-dim); font-size: 0.85rem; font-style: italic; }
.rename-ext { color: var(--text-dim); font-size: 0.85rem; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-input); }
::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 3px; }