/*
 * Vini Fonts — Premium Stylesheet v5
 * Author: Vinayak Bibyan
 * v5 changes:
 *   - Removed trending section styles
 *   - Added emoji_readable / emoji_balanced / emoji_full pill styles
 *   - Fixed: vf-filter-scrolled pseudo-element z-index conflict
 *   - Fixed: .vf-app padding-bottom was too large on mobile
 *   - Fixed: .vf-card-preview emoji rendering (use word-break: break-word + font-size up on emoji cards)
 *   - Fixed: .vf-stat-badge was duplicated/conflicting in v4 (resolved to single gradient)
 *   - Fixed: .vf-hero::after bleed on narrow viewports
 *   - Added .vf-dot-emoji dot colour for emoji category section labels
 *   - Added toggle switch styles for admin
 */

/* ─── VARIABLES ────────────────────────────────────────── */
.vf-app {
    --vf-bg:          #f8fafc;
    --vf-surface:     #ffffff;
    --vf-surface-2:   #f1f5f9;
    --vf-border:      rgba(148, 163, 184, 0.18);
    --vf-border-2:    rgba(99, 102, 241, 0.18);

    --vf-accent:      #6366f1;
    --vf-accent-2:    #8b5cf6;
    --vf-accent-3:    #0ea5e9;
    --vf-accent-4:    #14b8a6;

    --vf-emoji-1:     #f97316;
    --vf-emoji-2:     #ec4899;
    --vf-emoji-3:     #a855f7;

    --vf-text:        #0f172a;
    --vf-text-2:      #475569;
    --vf-text-3:      #94a3b8;
    --vf-text-light:  #cbd5e1;

    --vf-shadow-sm:   0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --vf-shadow-md:   0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.05);
    --vf-shadow-lg:   0 10px 40px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.06);
    --vf-shadow-glow: 0 0 0 3px rgba(99, 102, 241, 0.15);

    --vf-radius:      14px;
    --vf-radius-sm:   8px;
    --vf-radius-xs:   6px;
    --vf-radius-pill: 100px;

    --vf-font-display: 'Playfair Display', Georgia, serif;
    --vf-font-body:    'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --vf-transition:   all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    --vf-spring:       all 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);

    font-family: var(--vf-font-body);
    color: var(--vf-text);
    background: var(--vf-bg);
    min-height: 300px;
    padding-bottom: 48px;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ─── HERO / INPUT SECTION ──────────────────────────────── */
.vf-hero {
    padding: 32px 20px 28px;
    background: linear-gradient(135deg, #ffffff 0%, #f8faff 50%, #f0f4ff 100%);
    border-bottom: 1px solid var(--vf-border);
    position: relative;
    overflow: hidden;
}

.vf-hero::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, rgba(99,102,241,0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

/* FIX v4: ::after bleed clipped correctly */
.vf-hero::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: -20px;
    width: 160px;
    height: 160px;
    background: radial-gradient(circle, rgba(139,92,246,0.07) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.vf-hero-inner {
    max-width: 860px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.vf-input-wrapper {
    position: relative;
    background: var(--vf-surface);
    border-radius: var(--vf-radius);
    box-shadow: var(--vf-shadow-md), inset 0 0 0 1.5px var(--vf-border);
    transition: box-shadow 0.25s ease;
}

.vf-input-wrapper:focus-within {
    box-shadow: var(--vf-shadow-lg), inset 0 0 0 1.5px var(--vf-accent), var(--vf-shadow-glow);
}

.vf-input-glow {
    position: absolute;
    inset: -2px;
    border-radius: calc(var(--vf-radius) + 2px);
    background: linear-gradient(135deg, var(--vf-accent), var(--vf-accent-2));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
    filter: blur(8px);
}

.vf-input-wrapper:focus-within .vf-input-glow {
    opacity: 0.12;
}

.vf-input {
    width: 100%;
    padding: 20px 56px 10px 22px;
    border: none;
    background: transparent;
    font-family: var(--vf-font-body);
    font-size: 17px;
    font-weight: 400;
    color: var(--vf-text);
    resize: none;
    outline: none;
    line-height: 1.55;
    min-height: 64px;
    box-sizing: border-box;
    border-radius: var(--vf-radius);
    caret-color: var(--vf-accent);
}

.vf-input::placeholder {
    color: var(--vf-text-3);
    font-style: italic;
    font-weight: 300;
}

.vf-input-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 14px 12px 22px;
}

.vf-char-count {
    font-size: 11.5px;
    color: var(--vf-text-3);
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
}

.vf-clear-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--vf-surface-2);
    border: 1px solid var(--vf-border);
    border-radius: 50%;
    cursor: pointer;
    color: var(--vf-text-3);
    transition: var(--vf-transition);
    padding: 0;
}

.vf-clear-btn:hover {
    background: #fee2e2;
    border-color: #fca5a5;
    color: #ef4444;
    transform: scale(1.08);
}

.vf-stats-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    flex-wrap: wrap;
}

/* FIX v4: single canonical .vf-stat-badge (removed duplicate at bottom of v4 file) */
.vf-stat-badge {
    background: linear-gradient(135deg, #7c3aed, #a855f7);
    color: white;
    font-size: 11.5px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: var(--vf-radius-pill);
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.vf-stat-sep {
    color: var(--vf-text-light);
    font-size: 12px;
}

.vf-stat-text {
    font-size: 12.5px;
    color: var(--vf-text-2);
    font-weight: 400;
}

/* ─── FILTER BAR ─────────────────────────────────────────── */
.vf-filter-sticky {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(248, 250, 252, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--vf-border);
    box-shadow: var(--vf-shadow-sm);
}

.vf-filter-scroll {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    scroll-behavior: smooth;
    padding: 14px 20px;
    -ms-overflow-style: none;
    scrollbar-width: none;
    align-items: center;
}

.vf-filter-scroll::-webkit-scrollbar { display: none; }

/* FIX v4: was on .vf-filter-sticky which caused layout issues; now on .vf-filter-scroll wrapper */
.vf-filter-sticky.vf-filter-scrolled {
    position: relative; /* only needed for the pseudo */
}

.vf-filter-sticky.vf-filter-scrolled::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 28px;
    background: linear-gradient(to right, rgba(248,250,252,0.96), transparent);
    pointer-events: none;
    z-index: 2;
}

.vf-pill {
    white-space: nowrap;
    padding: 6px 16px;
    border-radius: var(--vf-radius-pill);
    border: 1.5px solid var(--vf-border);
    background: var(--vf-surface);
    font-family: var(--vf-font-body);
    font-size: 13px;
    font-weight: 500;
    color: var(--vf-text-2);
    cursor: pointer;
    transition: var(--vf-spring);
    flex-shrink: 0;
    line-height: 1;
}

.vf-pill:hover {
    border-color: var(--vf-accent);
    color: var(--vf-accent);
    background: rgba(99, 102, 241, 0.06);
    transform: translateY(-1px);
}

.vf-pill.active {
    background: linear-gradient(135deg, var(--vf-accent), var(--vf-accent-2));
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
    transform: translateY(-1px);
}

/* ── Emoji font pills — warm gradient ── */
.vf-pill-emoji {
    border-color: rgba(249, 115, 22, 0.3);
    color: #c2410c;
}

.vf-pill-emoji:hover {
    border-color: var(--vf-emoji-1);
    color: var(--vf-emoji-1);
    background: rgba(249, 115, 22, 0.07);
    transform: translateY(-1px);
}

.vf-pill-emoji.active {
    background: linear-gradient(135deg, var(--vf-emoji-1), var(--vf-emoji-2));
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
    transform: translateY(-1px);
}

/* ─── SECTION LABELS ─────────────────────────────────────── */
.vf-section {
    padding: 28px 20px 0;
    max-width: 1400px;
    margin: 0 auto;
}

.vf-section-label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
    font-family: var(--vf-font-display);
    font-size: 18px;
    font-weight: 600;
    color: var(--vf-text);
    letter-spacing: -0.01em;
}

.vf-label-dot {
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, var(--vf-accent), var(--vf-accent-2));
    border-radius: 50%;
    flex-shrink: 0;
}

/* NEW v5: emoji section label dot */
.vf-dot-emoji {
    background: linear-gradient(135deg, var(--vf-emoji-1), var(--vf-emoji-2));
    box-shadow: 0 0 8px rgba(249, 115, 22, 0.45);
}

.vf-count-badge {
    font-family: var(--vf-font-body);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 9px;
    background: var(--vf-surface-2);
    border: 1px solid var(--vf-border);
    border-radius: var(--vf-radius-pill);
    color: var(--vf-text-2);
    margin-left: 4px;
}

/* ─── GRID ───────────────────────────────────────────────── */
.vf-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 14px;
}

@media (max-width: 600px) {
    .vf-grid { grid-template-columns: 1fr; gap: 10px; }
}

/* ─── CARDS ──────────────────────────────────────────────── */
.vf-card {
    background: var(--vf-surface);
    border-radius: var(--vf-radius);
    border: 1.5px solid var(--vf-border);
    padding: 16px 18px;
    cursor: pointer;
    transition: var(--vf-spring);
    position: relative;
    overflow: hidden;
    box-shadow: var(--vf-shadow-sm);
}

.vf-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--vf-accent), var(--vf-accent-2), var(--vf-accent-3));
    opacity: 0;
    transition: opacity 0.25s ease;
}

.vf-card:hover {
    transform: translateY(-3px) scale(1.008);
    box-shadow: var(--vf-shadow-lg);
    border-color: var(--vf-border-2);
}

.vf-card:hover::before { opacity: 1; }

.vf-card:active {
    transform: translateY(-1px) scale(1.003);
}

.vf-card-copied {
    border-color: rgba(20, 184, 166, 0.5) !important;
    background: linear-gradient(135deg, #f0fdf9, #ffffff) !important;
}

.vf-card-copied::before {
    opacity: 1;
    background: linear-gradient(90deg, #14b8a6, #0ea5e9) !important;
}

/* NEW v5: Emoji cards — warm accent */
.vf-card-emoji {
    border-color: rgba(249, 115, 22, 0.15);
    background: linear-gradient(135deg, #fffbf5 0%, #ffffff 100%);
}

.vf-card-emoji::before {
    background: linear-gradient(90deg, var(--vf-emoji-1), var(--vf-emoji-2), var(--vf-emoji-3));
}

.vf-card-emoji:hover {
    border-color: rgba(249, 115, 22, 0.35);
    box-shadow: 0 10px 40px rgba(249,115,22,0.10), 0 4px 12px rgba(249,115,22,0.07);
}

.vf-card-emoji .vf-card-cat {
    color: var(--vf-emoji-1);
}

/* Card top row */
.vf-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 10px;
}

.vf-card-meta {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.vf-card-name {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--vf-text);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
}

.vf-card-cat {
    font-size: 10.5px;
    color: var(--vf-text-3);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-weight: 500;
}

/* Copy button */
.vf-copy-btn {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--vf-surface-2);
    border: 1px solid var(--vf-border);
    border-radius: var(--vf-radius-sm);
    cursor: pointer;
    color: var(--vf-text-3);
    transition: var(--vf-spring);
    padding: 0;
}

.vf-copy-btn:hover {
    background: var(--vf-accent);
    border-color: var(--vf-accent);
    color: white;
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

.vf-copy-btn.copied {
    background: #14b8a6;
    border-color: #14b8a6;
    color: white;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(20, 184, 166, 0.35);
}

/* Preview */
.vf-card-preview {
    font-size: 16px;
    line-height: 1.65;
    color: var(--vf-text);
    word-break: break-word;
    overflow-wrap: break-word;
    min-height: 26px;
    unicode-bidi: plaintext;
}

/* FIX v5: emoji cards need larger font for emoji to render correctly */
.vf-card-emoji .vf-card-preview {
    font-size: 18px;
    line-height: 1.8;
    letter-spacing: 0.02em;
}

.vf-placeholder-hint {
    color: var(--vf-text-light);
    font-size: 13px;
    font-style: italic;
    font-family: var(--vf-font-body);
}

/* ─── LOAD MORE ──────────────────────────────────────────── */
.vf-loadmore-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 32px 20px;
    gap: 10px;
}

.vf-loadmore-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    background: var(--vf-surface);
    border: 1.5px solid var(--vf-border);
    border-radius: var(--vf-radius-pill);
    font-family: var(--vf-font-body);
    font-size: 14px;
    font-weight: 600;
    color: var(--vf-text-2);
    cursor: pointer;
    transition: var(--vf-spring);
    box-shadow: var(--vf-shadow-sm);
}

.vf-loadmore-btn:hover {
    background: linear-gradient(135deg, var(--vf-accent), var(--vf-accent-2));
    border-color: transparent;
    color: white;
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
    transform: translateY(-2px);
}

.vf-loadmore-hint {
    font-size: 12px;
    color: var(--vf-text-3);
    margin: 0;
}

/* ─── EMPTY STATE ────────────────────────────────────────── */
.vf-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    gap: 12px;
    color: var(--vf-text-3);
    text-align: center;
}

.vf-empty-icon {
    font-size: 32px;
    opacity: 0.3;
    animation: vf-pulse 2s ease-in-out infinite;
}

.vf-empty p {
    font-size: 15px;
    margin: 0;
    color: var(--vf-text-3);
}

@keyframes vf-pulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(1.08); }
}

/* ─── TOAST ──────────────────────────────────────────────── */
.vf-toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: var(--vf-text);
    color: white;
    padding: 10px 22px;
    border-radius: var(--vf-radius-pill);
    font-size: 13.5px;
    font-weight: 500;
    font-family: var(--vf-font-body);
    z-index: 9999;
    pointer-events: none;
    transition: transform 0.32s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.2s ease;
    opacity: 0;
    box-shadow: 0 6px 24px rgba(0,0,0,0.22);
    white-space: nowrap;
}

.vf-toast.vf-toast-show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ─── INIT ANIMATIONS ────────────────────────────────────── */
.vf-app .vf-card {
    opacity: 0;
    transform: translateY(12px);
    animation: none;
}

.vf-app.vf-ready .vf-card {
    animation: vf-fadeup 0.38s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.vf-app.vf-ready .vf-card:nth-child(1)   { animation-delay: 0.00s; }
.vf-app.vf-ready .vf-card:nth-child(2)   { animation-delay: 0.02s; }
.vf-app.vf-ready .vf-card:nth-child(3)   { animation-delay: 0.03s; }
.vf-app.vf-ready .vf-card:nth-child(4)   { animation-delay: 0.04s; }
.vf-app.vf-ready .vf-card:nth-child(5)   { animation-delay: 0.05s; }
.vf-app.vf-ready .vf-card:nth-child(6)   { animation-delay: 0.06s; }
.vf-app.vf-ready .vf-card:nth-child(n+7) { animation-delay: 0.08s; }

@keyframes vf-fadeup {
    to { opacity: 1; transform: translateY(0); }
}

/* ─── SCROLLBAR ──────────────────────────────────────────── */
.vf-app ::-webkit-scrollbar { width: 5px; height: 5px; }
.vf-app ::-webkit-scrollbar-track { background: transparent; }
.vf-app ::-webkit-scrollbar-thumb { background: var(--vf-text-light); border-radius: 4px; }
.vf-app ::-webkit-scrollbar-thumb:hover { background: var(--vf-text-3); }

/* ─── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 768px) {
    .vf-hero                 { padding: 24px 16px 20px; }
    .vf-input                { font-size: 15px; padding: 16px 48px 8px 16px; }
    .vf-section              { padding: 22px 16px 0; }
    .vf-section-label        { font-size: 16px; }
    .vf-card-preview         { font-size: 14.5px; }
    .vf-card-emoji .vf-card-preview { font-size: 16px; }
    .vf-card                 { padding: 14px 15px; }
    .vf-filter-scroll        { padding: 12px 16px; gap: 5px; }
    .vf-pill                 { font-size: 12px; padding: 5px 13px; }
    .vf-app                  { padding-bottom: 32px; }
}

@media (max-width: 480px) {
    .vf-hero     { padding: 18px 12px 16px; }
    .vf-stats-row { gap: 6px; }
    .vf-stat-text { display: none; }
    .vf-section   { padding: 18px 12px 0; }
}

/* ─── CATEGORY PILL ACCENTS (preserved from v4) ─────────── */
.vf-pill[data-cat="morse"]     { border-color: rgba(99,102,241,0.3); }
.vf-pill[data-cat="regional"]  { border-color: rgba(14,165,233,0.3); }
.vf-pill[data-cat="combining"] { border-color: rgba(245,158,11,0.3); }
.vf-pill[data-cat="mixed"]     { border-color: rgba(16,185,129,0.3); }

.vf-pill[data-cat="morse"].active     { background:#6366f1; color:#fff; border-color:#6366f1; }
.vf-pill[data-cat="regional"].active  { background:#0ea5e9; color:#fff; border-color:#0ea5e9; }
.vf-pill[data-cat="combining"].active { background:#f59e0b; color:#fff; border-color:#f59e0b; }
.vf-pill[data-cat="mixed"].active     { background:#10b981; color:#fff; border-color:#10b981; }

/* Morse/regional card previews — monospace */
.vf-card[data-cat="morse"] .vf-card-preview,
.vf-card[data-cat="regional"] .vf-card-preview {
    font-family: 'Courier New', monospace;
    font-size: 0.78rem;
    letter-spacing: 0.05em;
    word-break: break-all;
}

/* ─── PRINT HIDE ─────────────────────────────────────────── */
@media print {
    .vf-filter-sticky,
    .vf-loadmore-wrap,
    .vf-clear-btn,
    .vf-copy-btn,
    .vf-toast { display: none !important; }
}