/* ─────────────────────────────────────────────────────────────────────────────
   typing-custom.css  –  Custom Text Typing Practice
   The typing arena reuses lesson-typing.css. This file only covers the
   paste-screen phase and page-level overrides.
───────────────────────────────────────────────────────────────────────────── */

/* ── Paste Phase ─────────────────────────────────────────────────────────── */
.custom-paste-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 60px);
    padding: 24px 20px;
    gap: 24px;
}

.custom-paste-card {
    width: 100%;
    max-width: 820px;
    background: var(--card);
    border: 1.5px solid var(--border);
    border-radius: 20px;
    padding: 32px 36px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.18);
    animation: fadeSlideUp 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(18px); }
    to   { opacity: 1; transform: translateY(0); }
}

.custom-paste-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.custom-paste-icon {
    font-size: 2rem;
    line-height: 1;
}

.custom-paste-title {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text);
    margin: 0;
}

.custom-paste-subtitle {
    font-size: 0.82rem;
    color: var(--text-dim);
    margin: 0;
}

/* Textarea */
.custom-paste-textarea {
    width: 100%;
    min-height: 320px;
    resize: vertical;
    background: var(--bg);
    border: 1.5px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.92rem;
    line-height: 1.65;
    padding: 16px 18px;
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.custom-paste-textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.12);
}

.custom-paste-textarea::placeholder {
    color: var(--text-dim);
    opacity: 0.7;
}

/* Footer row */
.custom-paste-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.custom-word-count {
    font-size: 0.82rem;
    color: var(--text-dim);
    font-variant-numeric: tabular-nums;
    min-width: 80px;
}

.custom-word-count.warn {
    color: var(--warning, #f0a500);
}

.custom-paste-error {
    font-size: 0.82rem;
    color: var(--danger);
    min-height: 18px;
    font-weight: 600;
}

/* Tips row */
.custom-paste-tips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.paste-tip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    background: rgba(var(--accent-rgb), 0.08);
    border: 1px solid rgba(var(--accent-rgb), 0.15);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.18s;
    font-family: inherit;
}

.paste-tip:hover {
    background: rgba(var(--accent-rgb), 0.15);
    color: var(--accent);
    transform: translateY(-1px);
}

/* ── Arena Phase (reuses lesson-typing.css) ───────────────────────────────── */
#custom-arena-phase {
    display: none;
}

#custom-arena-phase.visible {
    display: block;
}

/* Back-to-paste button shown in arena header */
.custom-back-btn {
    background: none;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 0.85rem;
    padding: 5px 12px;
    transition: all 0.18s;
    font-family: inherit;
}

.custom-back-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Override typing-page min-height for custom page */
.typing-page {
    padding-top: 72px;
}

/* ── Paste History ───────────────────────────────────────────────────────── */
.custom-paste-history {
    width: 100%;
    max-width: 820px;
    margin: 0 auto;
    animation: fadeSlideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.paste-history-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
    padding: 0 2px;
}

.paste-history-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-dim);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.paste-history-clear-all {
    font-size: 0.75rem;
    color: var(--text-dim);
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    padding: 2px 6px;
    border-radius: 6px;
    transition: color 0.18s, background 0.18s;
}

.paste-history-clear-all:hover {
    color: var(--danger);
    background: rgba(var(--danger-rgb, 202, 71, 84), 0.1);
}

.paste-history-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.paste-history-item {
    display: flex;
    flex-direction: column;
    background: var(--card);
    border: 1.5px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.18s, background 0.18s;
}

.paste-history-item:hover {
    border-color: rgba(var(--accent-rgb), 0.35);
    background: rgba(var(--accent-rgb), 0.03);
}

.paste-history-item.expanded {
    border-color: rgba(var(--accent-rgb), 0.4);
}

/* Top row (arrow + preview + meta + delete) */
.paste-history-top-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    cursor: pointer;
}

.paste-history-arrow {
    font-size: 0.75rem;
    color: var(--text-dim);
    opacity: 0.5;
    flex-shrink: 0;
    transition: transform 0.18s;
    user-select: none;
    width: 12px;
}

.paste-history-preview {
    flex: 1;
    text-align: left;
    background: none;
    border: none;
    color: var(--text-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem;
    cursor: pointer;
    padding: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.18s;
    min-width: 0;
}

.paste-history-preview:hover {
    color: var(--text);
}

.paste-history-meta {
    font-size: 0.72rem;
    color: var(--text-dim);
    opacity: 0.6;
    white-space: nowrap;
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
}

.paste-history-del {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 0.8rem;
    opacity: 0.45;
    padding: 2px 5px;
    border-radius: 6px;
    flex-shrink: 0;
    transition: opacity 0.18s, color 0.18s, background 0.18s;
    line-height: 1;
}

.paste-history-del:hover {
    opacity: 1;
    color: var(--danger);
    background: rgba(var(--danger-rgb, 202, 71, 84), 0.1);
}

/* ── Chunk Drawer ──────────────────────────────────────────────────────────── */
.paste-history-drawer {
    border-top: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.12);
    display: flex;
    flex-direction: column;
    gap: 0;
    overflow: hidden;
    animation: drawerSlideDown 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes drawerSlideDown {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.paste-history-chunk-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 18px 9px 24px;
    border-bottom: 1px solid rgba(var(--border-rgb, 255, 255, 255), 0.04);
    transition: background 0.15s;
    cursor: pointer;
}

.paste-history-chunk-row:last-child {
    border-bottom: none;
}

.paste-history-chunk-row:hover {
    background: rgba(var(--accent-rgb), 0.09);
}

.paste-history-chunk-row.done .paste-history-chunk-label {
    color: var(--accent);
    opacity: 0.85;
}

/* Compact number badge */
.paste-history-chunk-label {
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--text-dim);
    background: rgba(var(--accent-rgb), 0.08);
    border: 1px solid rgba(var(--accent-rgb), 0.15);
    border-radius: 5px;
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-variant-numeric: tabular-nums;
}

.paste-history-chunk-hint {
    flex: 1;
    font-size: 0.72rem;
    color: var(--text-dim);
    opacity: 0.55;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-family: 'JetBrains Mono', monospace;
}

.paste-history-chunk-status {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
    flex-shrink: 0;
    min-width: 16px;
    text-align: center;
}

.paste-history-chunk-play {
    background: none;
    border: 1px solid rgba(var(--accent-rgb), 0.2);
    border-radius: 6px;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 0.6rem;
    padding: 3px 7px;
    flex-shrink: 0;
    transition: all 0.15s;
    font-family: inherit;
    line-height: 1.5;
}

.paste-history-chunk-play:hover {
    background: rgba(var(--accent-rgb), 0.12);
    border-color: var(--accent);
    color: var(--accent);
    transform: scale(1.05);
}

/* Hidden until hover reveal for play button */
.paste-history-chunk-play {
    opacity: 0;
    transition: all 0.15s, opacity 0.15s;
}
.paste-history-chunk-row:hover .paste-history-chunk-play {
    opacity: 1;
}

/* Edit button — pencil icon, hidden until row hovered */
.paste-history-edit-btn {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 0.78rem;
    opacity: 0;
    padding: 2px 5px;
    border-radius: 6px;
    flex-shrink: 0;
    transition: opacity 0.18s, background 0.18s;
    line-height: 1;
}
.paste-history-top-row:hover .paste-history-edit-btn {
    opacity: 0.6;
}
.paste-history-edit-btn:hover {
    opacity: 1 !important;
    background: rgba(var(--accent-rgb), 0.1);
}

/* All-done item gets a subtle accent tint */
.paste-history-item.all-done {
    border-color: rgba(var(--accent-rgb), 0.28);
}
.paste-history-item.all-done .paste-history-preview {
    opacity: 0.65;
}

/* Empty-state message */
.paste-history-empty {
    color: var(--text-dim);
    text-align: center;
    padding: 30px 16px;
    font-size: 0.88rem;
    opacity: 0.6;
}

/* ── Offline indicator and Chunk Navigation ──────────────────────────────── */
.offline-indicator-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    vertical-align: middle;
}

.offline-dot {
    width: 6px;
    height: 6px;
    background-color: #ef4444;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px #ef4444;
    animation: pulseOffline 2s infinite alternate;
}

@keyframes pulseOffline {
    0% { opacity: 0.4; }
    100% { opacity: 1; }
}

.chunk-badge-wrapper {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--card);
    border: 1.5px solid var(--border);
    border-radius: 20px;
    padding: 3px 6px;
}

.chunk-badge {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-dim);
    padding: 0 4px;
    font-variant-numeric: tabular-nums;
}

.chunk-nav-btn {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 0.75rem;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 50%;
    transition: all 0.18s;
    line-height: 1;
}

.chunk-nav-btn:hover:not(:disabled) {
    color: var(--accent);
    background: rgba(var(--accent-rgb), 0.08);
}

.chunk-nav-btn:disabled {
    opacity: 0.25;
    cursor: not-allowed;
}

.paste-history-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    background: rgba(var(--accent-rgb), 0.08);
    border: 1px solid rgba(var(--accent-rgb), 0.2);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.18s;
    font-family: inherit;
    font-weight: 600;
}
.paste-history-toggle-btn:hover, .paste-history-toggle-btn.active {
    background: rgba(var(--accent-rgb), 0.16);
    color: var(--accent);
    border-color: var(--accent);
}

/* ── Mobile ──────────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
    .custom-paste-card {
        padding: 20px 16px;
    }
    .custom-paste-footer {
        flex-direction: column;
        align-items: flex-start;
    }
}