/* ================================================================
   Level System - Premium UI Stylesheet
   3 View Modes: Table (List) | Grid (Cards) | Board (Journey)
   ================================================================ */

/* ===== CSS Custom Properties ===== */
:root {
    --ls-cyan: #00d4ff;
    --ls-cyan-dim: rgba(0, 212, 255, 0.15);
    --ls-green: #00ff88;
    --ls-green-dim: rgba(0, 255, 136, 0.12);
    --ls-gold: #ffd700;
    --ls-gold-dim: rgba(255, 215, 0, 0.15);
    --ls-purple: #a78bfa;
    --ls-purple-dim: rgba(167, 139, 250, 0.12);
    --ls-pink: #f472b6;
    --ls-orange: #fb923c;
    --ls-red: #f87171;
    --ls-bg-dark: #0a0a1a;
    --ls-bg-panel: #111827;
    --ls-bg-card: #1a1a2e;
    --ls-border: rgba(99, 102, 241, 0.25);
    --ls-text: #e2e8f0;
    --ls-text-dim: #94a3b8;
    --ls-radius: 14px;
    --ls-radius-sm: 8px;
    --ls-shadow-glow: 0 0 30px rgba(99, 102, 241, 0.15);
    --ls-transition: 0.25s cubic-bezier(.4,0,.2,1);
}

/* ===== Level Select Overlay ===== */
.level-select-overlay {
    position: fixed;
    inset: 0;
    background: rgba(5, 5, 15, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: lsFadeIn 0.35s ease;
    overflow-y: auto;
    padding: 1rem;
}

/* ===== Main Container ===== */
.level-select-container {
    background: linear-gradient(160deg, #0f0f23 0%, #131325 40%, #0d1929 100%);
    border: 1.5px solid var(--ls-border);
    border-radius: 22px;
    padding: 28px 32px 32px;
    width: 100%;
    max-width: 900px;
    max-height: 88vh;
    overflow-y: auto;
    box-shadow: var(--ls-shadow-glow), 0 25px 60px rgba(0,0,0,0.55);
    position: relative;
}

/* Header */
.ls-header {
    text-align: center;
    margin-bottom: 18px;
}

.ls-header h2 {
    font-weight: 600;
    font-size: 1.85em;
    background: linear-gradient(135deg, var(--ls-purple), var(--ls-cyan), var(--ls-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 4px;
    letter-spacing: -0.01em;
}

.ls-header .ls-subtitle {
    color: var(--ls-text-dim);
    font-size: 0.85em;
    font-weight: 500;
}

/* Stats Bar */
.ls-stats-bar {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.ls-stat {
    background: linear-gradient(135deg, rgba(99,102,241,0.1), rgba(0,212,255,0.07));
    border: 1px solid var(--ls-border);
    border-radius: 10px;
    padding: 8px 18px;
    text-align: center;
    min-width: 90px;
}

.ls-stat-label {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ls-text-dim);
    font-weight: 600;
}

.ls-stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--ls-cyan), var(--ls-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== View Toggle Tabs ===== */
.ls-view-toggle {
    display: flex;
    gap: 0;
    justify-content: center;
    margin-bottom: 16px;
    background: rgba(0,0,0,0.35);
    border-radius: 12px;
    padding: 4px;
    border: 1px solid var(--ls-border);
}

.ls-view-btn {
    flex: 1;
    padding: 9px 16px;
    background: transparent;
    color: var(--ls-text-dim);
    border: none;
    border-radius: 9px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ls-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    letter-spacing: 0.02em;
}

.ls-view-btn:hover {
    color: var(--ls-text);
    background: rgba(99, 102, 241, 0.1);
}

.ls-view-btn.active {
    background: linear-gradient(135deg, rgba(99,102,241,0.25), rgba(0,212,255,0.15));
    color: #fff;
    box-shadow: 0 2px 12px rgba(99,102,241,0.2);
}

.ls-view-btn .ls-view-icon {
    font-size: 1em;
    line-height: 1;
}

/* ===== Level Content Area ===== */
.ls-levels-wrap {
    max-height: 46vh;
    overflow-y: auto;
    border-radius: var(--ls-radius);
    background: rgba(0,0,0,0.2);
    border: 1px solid rgba(99,102,241,0.1);
    margin-bottom: 14px;
    scroll-behavior: smooth;
}

/* ================================================================
   VIEW 1 : TABLE / LIST
   ================================================================ */
.ls-table-view {
    display: flex;
    flex-direction: column;
    padding: 6px;
    gap: 4px;
}

.ls-table-row {
    display: grid;
    grid-template-columns: 56px 1fr 90px 100px 50px;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: linear-gradient(135deg, rgba(30,30,60,0.6), rgba(20,24,50,0.5));
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--ls-transition);
    position: relative;
    overflow: hidden;
}

.ls-table-row::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(99,102,241,0.04) 50%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.ls-table-row:hover {
    border-color: var(--ls-border);
    background: linear-gradient(135deg, rgba(40,40,80,0.7), rgba(25,30,60,0.6));
    transform: translateX(4px);
}

.ls-table-row:hover::before { opacity: 1; }

.ls-table-row.selected {
    border-color: var(--ls-cyan);
    background: linear-gradient(135deg, rgba(0,212,255,0.1), rgba(99,102,241,0.1));
    box-shadow: 0 0 20px rgba(0,212,255,0.12);
}

.ls-table-row.completed {
    border-left: 3px solid var(--ls-green);
}

.ls-table-row.milestone-row {
    border-left: 3px solid var(--ls-gold);
    background: linear-gradient(135deg, rgba(255,215,0,0.06), rgba(30,30,60,0.6));
}

/* Level number badge in table */
.ls-table-num {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    background: linear-gradient(135deg, #2d3561, #1f2544);
    border: 1.5px solid var(--ls-border);
    color: #fff;
    position: relative;
    flex-shrink: 0;
}

.ls-table-row.completed .ls-table-num {
    background: linear-gradient(135deg, #166534, #14532d);
    border-color: var(--ls-green);
}

.ls-table-row.stars-3 .ls-table-num {
    background: linear-gradient(135deg, #854d0e, #713f12);
    border-color: var(--ls-gold);
}

.ls-table-row.milestone-row .ls-table-num::after {
    content: '\1F451';
    position: absolute;
    top: -8px;
    right: -8px;
    font-size: 0.7em;
}

.ls-table-name {
    font-weight: 600;
    color: var(--ls-text);
    font-size: 0.9rem;
}

.ls-table-name .ls-difficulty-tag {
    display: inline-block;
    padding: 1px 8px;
    border-radius: 20px;
    font-size: 0.6rem;
    font-weight: 600;
    margin-left: 8px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    vertical-align: middle;
}

.ls-diff-easy    { background: rgba(52,211,153,0.15); color: #34d399; }
.ls-diff-medium  { background: rgba(251,191,36,0.15); color: #fbbf24; }
.ls-diff-hard    { background: rgba(248,113,113,0.15); color: #f87171; }
.ls-diff-extreme { background: rgba(244,114,182,0.15); color: #f472b6; }

.ls-table-score {
    color: var(--ls-text-dim);
    font-size: 0.8rem;
    font-weight: 500;
    text-align: right;
}

.ls-table-stars {
    display: flex;
    gap: 2px;
    justify-content: center;
}

.ls-table-stars .ls-star {
    font-size: 1rem;
    transition: transform 0.2s;
}

.ls-table-stars .ls-star.filled { color: var(--ls-gold); }
.ls-table-stars .ls-star.empty  { color: rgba(255,255,255,0.15); }

.ls-table-check {
    text-align: center;
    font-size: 1rem;
}

.ls-table-check .ls-check-icon {
    display: inline-flex;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
}

.ls-check-done {
    background: linear-gradient(135deg, var(--ls-green), #059669);
    color: #000;
}

.ls-check-pending {
    background: rgba(255,255,255,0.06);
    border: 1.5px solid rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.2);
}

/* ===== Locked Levels ===== */
.ls-card.locked {
    opacity: 0.5;
    cursor: not-allowed !important;
    filter: grayscale(40%);
}

.ls-card.locked:hover {
    transform: none;
    border-color: rgba(99,102,241,0.15);
    box-shadow: none;
}

.ls-card.locked::before {
    opacity: 0 !important;
}

.ls-card-lock {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.8rem;
    opacity: 0.9;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
}

.ls-card.locked .ls-card-num,
.ls-card.locked .ls-card-stars,
.ls-card.locked .ls-card-status {
    opacity: 0.3;
}

.ls-table-row.locked {
    opacity: 0.5;
    cursor: not-allowed !important;
}

.ls-table-row.locked:hover {
    transform: none;
    border-color: transparent;
    background: linear-gradient(135deg, rgba(30,30,60,0.6), rgba(20,24,50,0.5));
}

.ls-table-row.locked .ls-table-name {
    color: var(--ls-text-dim);
}

.ls-lock-icon {
    margin-left: 6px;
    font-size: 0.8em;
    opacity: 0.8;
}

.ls-board-node.locked {
    opacity: 0.4;
    cursor: not-allowed !important;
    background: linear-gradient(145deg, #1a1a2e, #151525);
    border-color: rgba(99,102,241,0.15);
}

.ls-board-node.locked:hover {
    transform: none;
    box-shadow: none;
    border-color: rgba(99,102,241,0.15);
}

/* ================================================================
   VIEW 2 : GRID / CARDS
   ================================================================ */
.ls-grid-view {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
    padding: 12px;
}

.ls-card {
    background: linear-gradient(160deg, rgba(30,30,65,0.8), rgba(18,22,48,0.9));
    border: 1.5px solid rgba(99,102,241,0.15);
    border-radius: var(--ls-radius);
    padding: 14px 10px 12px;
    text-align: center;
    cursor: pointer;
    transition: var(--ls-transition);
    position: relative;
    overflow: hidden;
}

.ls-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--ls-purple), var(--ls-cyan));
    opacity: 0;
    transition: opacity 0.3s;
}

.ls-card:hover {
    transform: translateY(-4px);
    border-color: var(--ls-cyan);
    box-shadow: 0 8px 25px rgba(0,212,255,0.15), 0 0 0 1px rgba(0,212,255,0.1);
}

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

.ls-card.selected {
    border-color: var(--ls-cyan);
    background: linear-gradient(160deg, rgba(0,212,255,0.12), rgba(99,102,241,0.1));
    box-shadow: 0 0 25px rgba(0,212,255,0.2);
}

.ls-card.selected::before { opacity: 1; }

.ls-card.completed {
    border-color: rgba(0,255,136,0.3);
}

.ls-card.completed::before {
    background: linear-gradient(90deg, var(--ls-green), #059669);
    opacity: 1;
}

.ls-card.stars-3 {
    border-color: rgba(255,215,0,0.35);
}

.ls-card.stars-3::before {
    background: linear-gradient(90deg, var(--ls-gold), var(--ls-orange));
    opacity: 1;
}

.ls-card.milestone-card {
    border-color: rgba(255,215,0,0.4);
    box-shadow: 0 0 20px rgba(255,215,0,0.08);
}

.ls-card-num {
    font-size: 1.6rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff, var(--ls-text-dim));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    margin-bottom: 4px;
}

.ls-card.completed .ls-card-num {
    background: linear-gradient(135deg, var(--ls-green), #6ee7b7);
    -webkit-background-clip: text;
    background-clip: text;
}

.ls-card.stars-3 .ls-card-num {
    background: linear-gradient(135deg, var(--ls-gold), var(--ls-orange));
    -webkit-background-clip: text;
    background-clip: text;
}

.ls-card-stars {
    font-size: 0.75rem;
    margin-bottom: 4px;
    height: 16px;
    display: flex;
    justify-content: center;
    gap: 1px;
}

.ls-card-stars .filled { color: var(--ls-gold); }
.ls-card-stars .empty  { color: rgba(255,255,255,0.12); }

.ls-card-status {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
    color: var(--ls-text-dim);
}

.ls-card.completed .ls-card-status { color: var(--ls-green); }

.ls-card-milestone-crown {
    position: absolute;
    top: 6px;
    right: 6px;
    font-size: 0.8em;
    filter: drop-shadow(0 0 4px rgba(255,215,0,0.5));
}

.ls-card-score {
    font-size: 0.65rem;
    color: var(--ls-text-dim);
    font-weight: 500;
    margin-top: 2px;
}

/* ================================================================
   VIEW 3 : BOARD / JOURNEY MAP
   ================================================================ */
.ls-board-view {
    padding: 20px 14px;
    position: relative;
}

.ls-board-track {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    position: relative;
}

.ls-board-row {
    display: flex;
    width: 100%;
    justify-content: space-between;
    position: relative;
    padding: 6px 0;
}

.ls-board-row:nth-child(even) {
    flex-direction: row-reverse;
}

/* Connector line between rows */
.ls-board-row:not(:last-child)::after {
    content: '';
    position: absolute;
    bottom: -8px;
    width: 3px;
    height: 20px;
    background: linear-gradient(180deg, var(--ls-purple), rgba(167,139,250,0.3));
    border-radius: 3px;
}

.ls-board-row:nth-child(odd):not(:last-child)::after { right: 24px; }
.ls-board-row:nth-child(even):not(:last-child)::after { left: 24px; }

.ls-board-node {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    background: linear-gradient(145deg, #252550, #1a1a3e);
    border: 2.5px solid rgba(99,102,241,0.25);
    color: var(--ls-text-dim);
    cursor: pointer;
    transition: var(--ls-transition);
    position: relative;
    flex-shrink: 0;
    z-index: 2;
}

.ls-board-node:hover {
    transform: scale(1.2);
    border-color: var(--ls-cyan);
    box-shadow: 0 0 18px rgba(0,212,255,0.3);
    color: #fff;
}

.ls-board-node.selected {
    border-color: var(--ls-cyan);
    background: linear-gradient(145deg, rgba(0,212,255,0.2), rgba(99,102,241,0.15));
    box-shadow: 0 0 22px rgba(0,212,255,0.35);
    color: #fff;
    transform: scale(1.15);
}

.ls-board-node.completed {
    background: linear-gradient(145deg, #166534, #14532d);
    border-color: var(--ls-green);
    color: #fff;
}

.ls-board-node.completed::after {
    content: '\2713';
    position: absolute;
    bottom: -4px;
    right: -4px;
    width: 16px;
    height: 16px;
    background: var(--ls-green);
    color: #000;
    border-radius: 50%;
    font-size: 0.55rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
}

.ls-board-node.stars-3 {
    background: linear-gradient(145deg, #854d0e, #78350f);
    border-color: var(--ls-gold);
}

.ls-board-node.stars-3::after {
    background: var(--ls-gold);
    content: '\2605';
}

.ls-board-node.milestone-node {
    width: 56px;
    height: 56px;
    font-size: 0.95rem;
    border: 3px solid var(--ls-gold);
    background: linear-gradient(145deg, rgba(255,215,0,0.12), rgba(30,30,65,0.9));
    box-shadow: 0 0 24px rgba(255,215,0,0.15);
    animation: lsBoardPulse 2.5s ease-in-out infinite;
}

.ls-board-node .ls-node-crown {
    position: absolute;
    top: -10px;
    font-size: 0.7em;
    filter: drop-shadow(0 0 4px rgba(255,215,0,0.6));
}

/* Connector dots between nodes in same row */
.ls-board-connector {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 40px;
}

.ls-board-connector::before {
    content: '';
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, rgba(99,102,241,0.2), rgba(99,102,241,0.4), rgba(99,102,241,0.2));
    border-radius: 2px;
}

/* ===== Level Info Panel (Shared) ===== */
.ls-info-panel {
    background: linear-gradient(135deg, rgba(0,0,0,0.4), rgba(15,15,40,0.5));
    border: 1px solid var(--ls-border);
    border-radius: var(--ls-radius);
    padding: 16px 20px;
    margin-bottom: 14px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 16px;
    align-items: center;
}

.ls-info-level {
    text-align: center;
}

.ls-info-level-num {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--ls-cyan), var(--ls-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.ls-info-level-label {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ls-text-dim);
    font-weight: 600;
}

.ls-info-details {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.ls-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
}

.ls-info-label {
    color: var(--ls-text-dim);
    font-weight: 500;
}

.ls-info-value {
    color: var(--ls-text);
    font-weight: 600;
}

.ls-info-stars {
    display: flex;
    gap: 4px;
    justify-content: center;
}

.ls-info-stars .ls-star-lg {
    font-size: 1.6rem;
    transition: transform 0.2s;
}

.ls-info-stars .ls-star-lg.filled {
    color: var(--ls-gold);
    filter: drop-shadow(0 0 4px rgba(255,215,0,0.4));
}

.ls-info-stars .ls-star-lg.empty {
    color: rgba(255,255,255,0.1);
}

/* ===== Play Button ===== */
.play-btn {
    width: 100%;
    padding: 14px 20px;
    font-size: 1.05em;
    font-weight: 700;
    background: linear-gradient(135deg, var(--ls-green), #059669);
    color: #000;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--ls-transition);
    box-shadow: 0 4px 20px rgba(0,255,136,0.2);
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.play-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(0,255,136,0.35);
    background: linear-gradient(135deg, #34d399, #10b981);
}

.play-btn:active {
    transform: translateY(0);
}

.play-btn .play-icon {
    font-size: 1.1em;
}

/* ===== Level Complete Overlay ===== */
.level-complete-overlay {
    position: fixed;
    inset: 0;
    background: rgba(5, 5, 15, 0.95);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    animation: lsFadeIn 0.3s ease;
    padding: 1rem;
}

.level-complete-container {
    background: linear-gradient(160deg, #0f0f23, #131325, #0d1929);
    border: 2px solid var(--ls-green);
    border-radius: 22px;
    padding: 36px 32px;
    text-align: center;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 0 60px rgba(0,255,136,0.12), 0 25px 60px rgba(0,0,0,0.5);
    animation: lsScaleIn 0.45s cubic-bezier(.34,1.56,.64,1);
}

.level-complete-container h2 {
    font-weight: 700;
    font-size: 1.85em;
    background: linear-gradient(135deg, var(--ls-green), var(--ls-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 6px;
}

.milestone-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, var(--ls-gold), var(--ls-orange));
    color: #000;
    padding: 8px 22px;
    border-radius: 50px;
    font-size: 0.95em;
    font-weight: 700;
    margin-bottom: 14px;
    box-shadow: 0 4px 20px rgba(255,215,0,0.35);
    animation: lsPulse 1.2s ease infinite;
}

.stars-display {
    font-size: 2.8em;
    margin: 16px 0;
    animation: lsStarPop 0.65s ease;
    filter: drop-shadow(0 0 10px rgba(255,215,0,0.25));
}

.score-display {
    margin: 14px 0;
}

.score-display p {
    color: var(--ls-text);
    font-size: 1em;
    font-weight: 500;
}

.score-value {
    color: var(--ls-cyan);
    font-size: 1.5em;
    font-weight: 700;
}

.level-complete-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 20px;
}

/* Shared button styles */
.btn-primary, .btn-secondary {
    padding: 12px 24px;
    font-size: 0.95em;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--ls-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    letter-spacing: 0.02em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--ls-green), #059669);
    color: #000;
    box-shadow: 0 3px 14px rgba(0,255,136,0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0,255,136,0.35);
}

.btn-secondary {
    background: rgba(99,102,241,0.12);
    border: 1px solid var(--ls-border);
    color: var(--ls-text);
}

.btn-secondary:hover {
    background: rgba(99,102,241,0.22);
    border-color: rgba(99,102,241,0.4);
    transform: translateY(-1px);
}

/* ===== In-Game Level Indicator ===== */
.level-indicator {
    position: fixed;
    top: 12px;
    right: 12px;
    background: linear-gradient(135deg, rgba(15,15,35,0.92), rgba(10,10,26,0.95));
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--ls-text);
    padding: 8px 16px;
    border-radius: 10px;
    font-size: 0.85em;
    font-weight: 600;
    border: 1px solid var(--ls-border);
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 6px;
}

#currentLevelValue {
    font-weight: 700;
    background: linear-gradient(135deg, var(--ls-cyan), var(--ls-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.15em;
}

/* ===== Confetti ===== */
.confetti {
    position: fixed;
    width: 10px;
    height: 10px;
    top: -10px;
    z-index: 10002;
    border-radius: 2px;
    animation: lsConfettiFall linear forwards;
}

/* ===== Animations ===== */
@keyframes lsFadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes lsScaleIn {
    from { transform: scale(0.6) translateY(20px); opacity: 0; }
    to   { transform: scale(1) translateY(0); opacity: 1; }
}

@keyframes lsStarPop {
    0%   { transform: scale(0.4); opacity: 0; }
    60%  { transform: scale(1.15); }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes lsPulse {
    0%, 100% { transform: scale(1); box-shadow: 0 4px 20px rgba(255,215,0,0.35); }
    50%      { transform: scale(1.04); box-shadow: 0 4px 28px rgba(255,215,0,0.5); }
}

@keyframes lsBoardPulse {
    0%, 100% { box-shadow: 0 0 24px rgba(255,215,0,0.15); }
    50%      { box-shadow: 0 0 32px rgba(255,215,0,0.3); }
}

@keyframes lsConfettiFall {
    0%   { transform: translateY(0) rotate(0deg); opacity: 1; }
    100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

@keyframes lsShimmer {
    0%   { background-position: -200% center; }
    100% { background-position: 200% center; }
}

/* also keep old names for backward compatibility */
@keyframes fadeIn   { from { opacity: 0; } to { opacity: 1; } }
@keyframes scaleIn  { from { transform: scale(0.5); opacity: 0; } to { transform: scale(1); opacity: 1; } }
@keyframes starPop  { 0%,100% { transform: scale(1); } 50% { transform: scale(1.2); } }
@keyframes pulse    { 0%,100% { transform: scale(1); } 50% { transform: scale(1.05); } }
@keyframes confettiFall { to { transform: translateY(100vh) rotate(360deg); opacity: 0; } }

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .level-select-container { padding: 18px 14px 20px; }
    .ls-header h2 { font-size: 1.45em; }

    .ls-grid-view { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: 8px; }
    .ls-card { padding: 10px 6px 8px; }
    .ls-card-num { font-size: 1.3rem; }

    .ls-table-row { grid-template-columns: 42px 1fr 70px 80px; }
    .ls-table-check { display: none; }
    .ls-table-num { width: 34px; height: 34px; font-size: 0.8rem; }

    .ls-board-node { width: 38px; height: 38px; font-size: 0.75rem; }
    .ls-board-node.milestone-node { width: 46px; height: 46px; }

    .ls-info-panel { grid-template-columns: auto 1fr; }
    .ls-info-stars { grid-column: 1 / -1; }

    .ls-stats-bar { gap: 6px; }
    .ls-stat { padding: 6px 12px; min-width: 70px; }
}

@media (max-width: 480px) {
    .ls-grid-view { grid-template-columns: repeat(auto-fill, minmax(65px, 1fr)); gap: 6px; }
    .ls-card { padding: 8px 4px 6px; }
    .ls-card-num { font-size: 1.1rem; }
    .ls-card-stars { font-size: 0.6rem; }
    .ls-card-status { font-size: 0.5rem; }

    .ls-table-row { grid-template-columns: 38px 1fr 60px; }
    .ls-table-stars { display: none; }
    .ls-table-score { font-size: 0.7rem; }

    .ls-board-node { width: 34px; height: 34px; font-size: 0.7rem; }

    .ls-view-btn { font-size: 0.7rem; padding: 7px 8px; }

    .level-indicator { font-size: 0.75em; padding: 6px 12px; }

    .level-complete-container { padding: 24px 18px; }
    .level-complete-container h2 { font-size: 1.4em; }
    .stars-display { font-size: 2.2em; }
}

/* ===== Scrollbar ===== */
.ls-levels-wrap::-webkit-scrollbar,
.level-select-container::-webkit-scrollbar {
    width: 6px;
}

.ls-levels-wrap::-webkit-scrollbar-track,
.level-select-container::-webkit-scrollbar-track {
    background: rgba(0,0,0,0.2);
    border-radius: 6px;
}

.ls-levels-wrap::-webkit-scrollbar-thumb,
.level-select-container::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--ls-purple), var(--ls-cyan));
    border-radius: 6px;
}

.ls-levels-wrap::-webkit-scrollbar-thumb:hover,
.level-select-container::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--ls-cyan), var(--ls-green));
}

/* Hidden utility */
.ls-hidden { display: none !important; }