@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=Inter:wght@400;600;700;800&display=swap');

:root {
    --bg: #0a0a1a;
    --surface: #12122a;
    --surface2: #1a1a3a;
    --border: #2a2a5a;
    --text: #e0e0ff;
    --text-dim: #8888aa;
    --accent: #00ff88;
    --accent2: #00bbff;
    --accent3: #ff66cc;
    --gold: #ffcc00;
    --danger: #ff4444;
    --warning: #ff8800;
    --xp-color: #00ff88;
    --hp-color: #ff4466;
    --mana-color: #4488ff;
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(0,255,136,0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0,187,255,0.03) 0%, transparent 50%);
}

.pixel-font { font-family: 'Press Start 2P', monospace; }

#app {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
}

/* SCREENS */
.screen { display: none; animation: fadeIn 0.4s ease; }
.screen.active { display: block; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideUp { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.05); } }
@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px var(--accent); }
    50% { box-shadow: 0 0 20px var(--accent), 0 0 40px rgba(0,255,136,0.3); }
}
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes typewriter {
    from { width: 0; }
    to { width: 100%; }
}
@keyframes confetti-fall {
    0% { transform: translateY(-10px) rotate(0deg); opacity: 1; }
    100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border: 2px solid var(--accent);
    background: rgba(0,255,136,0.1);
    color: var(--accent);
    font-family: 'Press Start 2P', monospace;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
    border-radius: 4px;
}
.btn:hover {
    background: var(--accent);
    color: var(--bg);
    box-shadow: 0 0 20px rgba(0,255,136,0.4);
    transform: translateY(-2px);
}
.btn:active { transform: translateY(0); }
.btn-primary {
    border-color: var(--accent2);
    background: rgba(0,187,255,0.1);
    color: var(--accent2);
}
.btn-primary:hover {
    background: var(--accent2);
    color: var(--bg);
    box-shadow: 0 0 20px rgba(0,187,255,0.4);
}
.btn-gold {
    border-color: var(--gold);
    background: rgba(255,204,0,0.1);
    color: var(--gold);
}
.btn-gold:hover {
    background: var(--gold);
    color: var(--bg);
    box-shadow: 0 0 20px rgba(255,204,0,0.4);
}
.btn-danger {
    border-color: var(--danger);
    background: rgba(255,68,68,0.1);
    color: var(--danger);
}
.btn-sm { padding: 8px 16px; font-size: 9px; }
.btn-lg { padding: 16px 36px; font-size: 13px; }
.btn-block { width: 100%; justify-content: center; }

/* CARDS */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    transition: all 0.3s;
}
.card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(0,255,136,0.1);
}
.card-glow {
    animation: glow 2s infinite;
}

/* STATS BARS */
.stat-bar {
    height: 8px;
    background: var(--surface2);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border);
}
.stat-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.8s ease;
    position: relative;
}
.stat-bar-fill::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 50%;
    background: rgba(255,255,255,0.15);
    border-radius: 3px 3px 0 0;
}
.xp-bar .stat-bar-fill { background: linear-gradient(90deg, var(--accent), #00dd77); }
.hp-bar .stat-bar-fill { background: linear-gradient(90deg, var(--danger), #ff6688); }
.mp-bar .stat-bar-fill { background: linear-gradient(90deg, var(--mana-color), #66aaff); }
.progress-bar .stat-bar-fill { background: linear-gradient(90deg, var(--accent2), #66ccff); }

/* HEADER / HUD */
.hud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 24px;
}
.hud-left { display: flex; align-items: center; gap: 16px; }
.hud-right { display: flex; align-items: center; gap: 12px; }
.hud-avatar {
    width: 48px; height: 48px;
    border: 2px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background: var(--surface2);
}
.hud-name { font-weight: 700; font-size: 16px; }
.hud-level {
    background: var(--accent);
    color: var(--bg);
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
}
.hud-xp { font-size: 13px; color: var(--xp-color); }
.hud-streak { font-size: 13px; color: var(--gold); }
.hud-badge { font-size: 13px; color: var(--text-dim); }

/* INTRO SCREEN */
#screen-intro {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    text-align: center;
}
.intro-title {
    font-family: 'Press Start 2P', monospace;
    font-size: 36px;
    color: var(--accent);
    text-shadow: 0 0 30px rgba(0,255,136,0.5), 0 0 60px rgba(0,255,136,0.2);
    margin-bottom: 16px;
    line-height: 1.4;
}
.intro-sub {
    font-size: 18px;
    color: var(--text-dim);
    margin-bottom: 40px;
    max-width: 600px;
    line-height: 1.6;
}
.intro-pixel {
    font-family: 'Press Start 2P', monospace;
    font-size: 60px;
    margin-bottom: 30px;
    animation: float 3s ease-in-out infinite;
}
.intro-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 800px;
    margin: 40px 0;
}
.intro-feature {
    padding: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
}
.intro-feature-icon { font-size: 32px; margin-bottom: 12px; }
.intro-feature-title { font-weight: 600; margin-bottom: 8px; font-size: 14px; }
.intro-feature-desc { font-size: 12px; color: var(--text-dim); line-height: 1.5; }

/* HUB SCREEN */
#screen-hub .hub-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}
.hub-stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}
.hub-stat {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
}
.hub-stat-value { font-size: 28px; font-weight: 800; }
.hub-stat-label { font-size: 11px; color: var(--text-dim); margin-top: 4px; }
.hub-stat.xp .hub-stat-value { color: var(--xp-color); }
.hub-stat.level .hub-stat-value { color: var(--accent2); }
.hub-stat.streak .hub-stat-value { color: var(--gold); }
.hub-stat.lessons .hub-stat-value { color: var(--accent3); }

/* LESSON LIST */
.lesson-list { display: flex; flex-direction: column; gap: 12px; }
.lesson-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}
.lesson-item:hover {
    border-color: var(--accent);
    transform: translateX(4px);
}
.lesson-item.completed { border-color: var(--accent); opacity: 0.8; }
.lesson-item.completed .lesson-status { color: var(--accent); }
.lesson-status { font-size: 20px; width: 30px; text-align: center; }
.lesson-info { flex: 1; }
.lesson-title { font-weight: 600; font-size: 14px; }
.lesson-meta { font-size: 11px; color: var(--text-dim); margin-top: 4px; display: flex; gap: 12px; }
.lesson-xp { color: var(--xp-color); }
.lesson-diff {
    padding: 1px 8px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 600;
}
.diff-beginner { background: rgba(0,255,136,0.2); color: var(--accent); }
.diff-intermediate { background: rgba(0,187,255,0.2); color: var(--accent2); }
.diff-advanced { background: rgba(255,102,204,0.2); color: var(--accent3); }
.diff-expert { background: rgba(255,68,68,0.2); color: var(--danger); }

/* SKILL TREE */
.skill-tree-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
    padding: 20px;
}
.skill-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 12px;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    text-align: center;
}
.skill-node:hover { transform: translateY(-4px); }
.skill-node.unlocked {
    border-color: var(--accent);
    background: rgba(0,255,136,0.05);
}
.skill-node.locked { opacity: 0.5; cursor: not-allowed; }
.skill-node.locked:hover { transform: none; }
.skill-node.current {
    border-color: var(--gold);
    animation: glow 2s infinite;
}
.skill-node-icon { font-size: 32px; margin-bottom: 8px; }
.skill-node-name { font-size: 11px; font-weight: 600; }
.skill-node-status {
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: 14px;
}
.skill-node-req {
    font-size: 9px;
    color: var(--text-dim);
    margin-top: 4px;
}

/* LESSON VIEW */
.lesson-view-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.lesson-view-back { cursor: pointer; font-size: 20px; }
.lesson-view-title { flex: 1; font-size: 20px; font-weight: 700; }
.lesson-view-content {
    line-height: 1.8;
    font-size: 15px;
}
.lesson-view-content h2 { margin: 24px 0 12px; color: var(--accent); font-size: 18px; }
.lesson-view-content h3 { margin: 20px 0 10px; color: var(--accent2); font-size: 16px; }
.lesson-view-content p { margin: 12px 0; }
.lesson-view-content ul, .lesson-view-content ol { margin: 12px 0; padding-left: 24px; }
.lesson-view-content li { margin: 6px 0; }
.lesson-view-content code {
    background: var(--surface2);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 13px;
    color: var(--accent3);
}
.lesson-view-content pre {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    overflow-x: auto;
    margin: 16px 0;
}
.lesson-view-content pre code {
    background: none;
    padding: 0;
    color: var(--text);
    font-size: 13px;
    line-height: 1.6;
}
.lesson-view-content blockquote {
    border-left: 3px solid var(--accent);
    padding-left: 16px;
    margin: 16px 0;
    color: var(--text-dim);
    font-style: italic;
}
.lesson-view-content img { max-width: 100%; border-radius: 8px; margin: 16px 0; }
.lesson-view-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
}
.lesson-view-content th, .lesson-view-content td {
    border: 1px solid var(--border);
    padding: 8px 12px;
    text-align: left;
}
.lesson-view-content th { background: var(--surface2); font-weight: 600; }
.lesson-view-content hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }

.lesson-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

/* CODE CHALLENGE */
.challenge-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin: 20px 0;
}
.challenge-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--surface2);
    border-bottom: 1px solid var(--border);
}
.challenge-title { font-weight: 600; font-size: 13px; }
.challenge-lang { font-size: 11px; color: var(--text-dim); }
.challenge-editor {
    width: 100%;
    min-height: 200px;
    padding: 16px;
    background: #0d0d20;
    border: none;
    color: var(--text);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    line-height: 1.6;
    resize: vertical;
    tab-size: 4;
}
.challenge-editor:focus { outline: none; }
.challenge-output {
    padding: 16px;
    background: #0d0d20;
    border-top: 1px solid var(--border);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    min-height: 60px;
    white-space: pre-wrap;
}
.challenge-actions { display: flex; gap: 12px; padding: 16px; }

/* QUIZ */
.quiz-container { margin: 20px 0; }
.quiz-question {
    padding: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 12px;
}
.quiz-question-text { font-weight: 600; margin-bottom: 12px; }
.quiz-options { display: flex; flex-direction: column; gap: 8px; }
.quiz-option {
    padding: 12px 16px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}
.quiz-option:hover { border-color: var(--accent2); }
.quiz-option.selected { border-color: var(--accent2); background: rgba(0,187,255,0.1); }
.quiz-option.correct { border-color: var(--accent); background: rgba(0,255,136,0.1); }
.quiz-option.incorrect { border-color: var(--danger); background: rgba(255,68,68,0.1); }
.quiz-option .index {
    display: inline-block;
    width: 24px;
    height: 24px;
    line-height: 24px;
    text-align: center;
    background: var(--border);
    border-radius: 50%;
    margin-right: 12px;
    font-size: 12px;
}

/* ACHIEVEMENTS */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}
.achievement-card {
    padding: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s;
}
.achievement-card.unlocked { border-color: var(--gold); }
.achievement-card.locked { opacity: 0.4; }
.achievement-icon { font-size: 28px; margin-bottom: 8px; }
.achievement-name { font-size: 12px; font-weight: 600; margin-bottom: 4px; }
.achievement-desc { font-size: 10px; color: var(--text-dim); }

/* LEADERBOARD */
.leaderboard-table { width: 100%; border-collapse: collapse; }
.leaderboard-table th, .leaderboard-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.leaderboard-table th {
    font-size: 11px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.leaderboard-table tr:hover td { background: var(--surface2); }
.leaderboard-rank {
    font-weight: 800;
    font-size: 16px;
    width: 40px;
}
.rank-1 { color: var(--gold); }
.rank-2 { color: #c0c0c0; }
.rank-3 { color: #cd7f32; }
.leaderboard-user { font-weight: 600; }
.leaderboard-xp { color: var(--xp-color); }
.leaderboard-level { color: var(--accent2); }
.leaderboard-streak { color: var(--gold); }

/* NOTIFICATION */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 24px;
    background: var(--surface);
    border: 1px solid var(--accent);
    border-radius: 8px;
    z-index: 1000;
    max-width: 400px;
    animation: slideUp 0.4s ease;
    box-shadow: 0 0 30px rgba(0,255,136,0.2);
}
.notification.hidden { display: none; }
.notification-title { font-weight: 700; margin-bottom: 4px; }
.notification-desc { font-size: 12px; color: var(--text-dim); }
.notification.xp { border-color: var(--xp-color); }
.notification.badge { border-color: var(--gold); }
.notification.error { border-color: var(--danger); }

/* WEAK TOPICS */
.weak-topics {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.weak-topic-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
}
.weak-topic-name { font-weight: 600; font-size: 13px; }
.weak-topic-score { font-size: 12px; }
.weak-topic-score.low { color: var(--danger); }
.weak-topic-score.medium { color: var(--warning); }
.weak-topic-score.high { color: var(--accent); }

/* IMPROVER PANEL */
.improver-panel {
    background: var(--surface);
    border: 2px solid var(--gold);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}
.improver-title {
    font-family: 'Press Start 2P', monospace;
    font-size: 14px;
    color: var(--gold);
    margin-bottom: 16px;
}
.improver-bar-container { margin-bottom: 12px; }
.improver-label {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    margin-bottom: 4px;
}
.improver-value { font-weight: 700; }

/* SIDEBAR */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.sidebar-card {
    padding: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
}
.sidebar-card-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

/* NAV */
.nav-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    padding: 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    flex-wrap: wrap;
}
.nav-item {
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.3s;
    background: none;
    color: var(--text-dim);
}
.nav-item:hover { color: var(--text); background: var(--surface2); }
.nav-item.active {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(0,255,136,0.1);
}

/* PROFILE SCREEN */
.profile-header {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 32px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 24px;
}
.profile-avatar {
    width: 80px;
    height: 80px;
    border: 3px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    background: var(--surface2);
}
.profile-info { flex: 1; }
.profile-name { font-size: 24px; font-weight: 800; }
.profile-level { color: var(--accent2); font-size: 14px; margin-top: 4px; }
.profile-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

/* ACTIVITY GRAPH */
.activity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(14px, 1fr));
    gap: 3px;
    margin: 12px 0;
}
.activity-cell {
    width: 14px;
    height: 14px;
    border-radius: 2px;
    background: var(--surface2);
}
.activity-cell.active { background: var(--accent); }
.activity-cell.many { background: var(--accent2); }

/* LOADING */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px;
    font-size: 14px;
    color: var(--text-dim);
}
.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: 12px;
}

/* UTILITY */
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }
.text-center { text-align: center; }
.text-dim { color: var(--text-dim); }
.text-accent { color: var(--accent); }
.text-gold { color: var(--gold); }
.text-sm { font-size: 12px; }
.text-xs { font-size: 10px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.mt-4 { margin-top: 16px; }
.w-full { width: 100%; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* RECOMMENDED LESSONS */
.recommended-list { display: flex; flex-direction: column; gap: 8px; }
.recommended-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}
.recommended-item:hover { border-color: var(--accent); }
.recommended-item.weak-lesson { border-color: var(--warning); }
.recommended-icon { font-size: 18px; }
.recommended-info { flex: 1; }
.recommended-title { font-size: 13px; font-weight: 600; }
.recommended-meta { font-size: 11px; color: var(--text-dim); }
.recommended-xp { color: var(--xp-color); font-size: 11px; }

/* RESPONSIVE */
@media (max-width: 768px) {
    #app { padding: 12px; }
    .intro-title { font-size: 20px; }
    .intro-features { grid-template-columns: 1fr; }
    #screen-hub .hub-grid { grid-template-columns: 1fr; }
    .hub-stats-row { grid-template-columns: repeat(2, 1fr); }
    .hud { flex-direction: column; gap: 12px; text-align: center; }
    .hud-left { flex-direction: column; }
    .profile-header { flex-direction: column; text-align: center; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .nav-bar { justify-content: center; }
    .nav-item { font-size: 10px; padding: 6px 10px; }
    .skill-tree-container { grid-template-columns: repeat(2, 1fr); }
}

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

/* FLOATING POPUPS */
 #popup-container {
    position: fixed;
    bottom: 90px;
    right: 20px;
    z-index: 999;
    display: flex;
    flex-direction: column-reverse;
    gap: 10px;
    pointer-events: none;
}
.floating-popup {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: var(--surface);
    border: 1px solid var(--accent);
    border-radius: 10px;
    padding: 14px 16px;
    max-width: 340px;
    box-shadow: 0 4px 24px rgba(0,255,136,0.18);
    cursor: pointer;
    pointer-events: auto;
    opacity: 0;
    transform: translateX(40px) scale(0.95);
    transition: opacity 0.4s cubic-bezier(0.4,0,0.2,1), transform 0.4s cubic-bezier(0.4,0,0.2,1);
    animation: slideUp 0.4s ease;
}
.floating-popup.popup-visible {
    opacity: 1;
    transform: translateX(0) scale(1);
}
.floating-popup.popup-suggestion {
    border-color: var(--gold);
    box-shadow: 0 4px 24px rgba(255,215,0,0.2), 0 0 40px rgba(255,215,0,0.1);
}
.floating-popup:hover {
    border-color: var(--accent-hover);
    box-shadow: 0 6px 32px rgba(0,255,136,0.25);
    transform: translateX(-4px) scale(1.02);
    transition: all 0.25s ease;
}
.floating-popup.popup-suggestion:hover {
    border-color: var(--gold);
    box-shadow: 0 6px 32px rgba(255,215,0,0.3), 0 0 50px rgba(255,215,0,0.15);
}
.popup-icon {
    font-size: 22px;
    flex-shrink: 0;
    margin-top: 2px;
}
.popup-body {
    flex: 1;
    min-width: 0;
}
.popup-title {
    font-weight: 700;
    font-size: 13px;
    margin-bottom: 2px;
    color: var(--accent);
}
.popup-suggestion .popup-title {
    color: var(--gold);
}
.popup-desc {
    font-size: 12px;
    color: var(--text-dim);
    line-height: 1.4;
}
.popup-close {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 18px;
    cursor: pointer;
    padding: 0 0 0 8px;
    flex-shrink: 0;
    line-height: 1;
}
.popup-close:hover {
    color: var(--danger);
}

/* APK DOWNLOAD BUTTON */
.apk-download-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 998;
    background: var(--surface);
    border: 1px solid var(--gold);
    border-radius: 30px;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 700;
    color: var(--gold);
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 0 20px rgba(255,215,0,0.2);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}
.apk-download-btn:hover {
    background: var(--gold);
    color: var(--bg);
    box-shadow: 0 0 30px rgba(255,215,0,0.4);
    transform: scale(1.05);
}