/* ================================================
   EDUCATOR EXTENSIONS — Stage Movement & Performance Coach
   ================================================ */

/* ── GRADE 5-8 badges ── */
.grade-5 { background: linear-gradient(135deg, #ff9a00, #ff6b35); color: white; }
.grade-6 { background: linear-gradient(135deg, #f820b0, #8a2be2); color: white; }
.grade-7 { background: linear-gradient(135deg, #00ff88, #00d2ff); color: #000; }
.grade-8 { background: linear-gradient(135deg, #f6d365, #fda085); color: #000; }
.grade-8 .grade-info h3 { background: linear-gradient(to right, #f6d365, #fda085); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.delay-6 { animation-delay: 0.6s; opacity: 0; animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.delay-7 { animation-delay: 0.7s; opacity: 0; animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.delay-8 { animation-delay: 0.8s; opacity: 0; animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; }

/* ── DANCE HERO ── */
.dance-hero {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, rgba(138,43,226,0.15), rgba(0,210,255,0.1));
    position: relative;
    overflow: hidden;
}
.dance-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 50%, rgba(248,32,176,0.15), transparent 60%);
}
.dance-hero-icon {
    width: 80px;
    height: 80px;
    background: var(--grad-primary);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    box-shadow: 0 0 30px rgba(138,43,226,0.5);
    flex-shrink: 0;
    position: relative;
    animation: dance-bob 3s ease-in-out infinite;
}
@keyframes dance-bob { 0%,100% { transform: translateY(0) rotate(0deg); } 50% { transform: translateY(-6px) rotate(3deg); } }
.dance-hero-content { flex: 1; position: relative; }
.dance-hero-stat {
    text-align: center;
    position: relative;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    padding: 1rem 1.5rem;
    flex-shrink: 0;
}
.dance-stat-num { display: block; font-family: var(--font-heading); font-size: 2.5rem; font-weight: 800; color: var(--accent-pink); }
.dance-stat-label { font-size: 0.8rem; color: var(--text-muted); }

/* ── DANCE STYLE SELECTOR ── */
.dance-style-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}
.dance-style-btn {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--border-radius-md);
    padding: 1.2rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    color: var(--text-muted);
}
.dance-style-btn:hover { background: rgba(255,255,255,0.08); color: var(--text-main); transform: translateY(-3px); }
.dance-style-btn.active {
    background: rgba(138,43,226,0.15);
    border-color: rgba(138,43,226,0.5);
    color: var(--text-main);
    box-shadow: 0 4px 20px rgba(138,43,226,0.2);
}
.style-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.style-name { font-weight: 700; font-size: 0.95rem; margin-bottom: 0.2rem; }
.style-desc { font-size: 0.75rem; }

/* ── DANCE SECTION TITLE ── */
.dance-section-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-main);
}
.dance-section-title i { color: var(--primary-color); }

/* ── DANCE LESSON CARDS ── */
.dance-lessons-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
    margin-bottom: 2rem;
}
.dance-lesson-card {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    transition: var(--transition-smooth);
    cursor: pointer;
}
.dance-lesson-card:hover { transform: translateY(-5px); box-shadow: 0 12px 40px rgba(0,0,0,0.4); }
.dlc-thumb-wrap { position: relative; }
.dlc-thumb {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.dlc-thumb-icon { font-size: 2.5rem; color: rgba(255,255,255,0.8); }
.dlc-thumb-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-fast);
}
.dance-lesson-card:hover .dlc-thumb-overlay { opacity: 1; }
.dlc-play-btn {
    width: 52px; height: 52px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    color: #000;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
}
.dlc-play-btn:hover { transform: scale(1.1); background: white; }
.dlc-badge {
    position: absolute;
    top: 0.6rem;
    left: 0.6rem;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
}
.dlc-beginner { background: rgba(0,255,136,0.2); color: var(--accent-green); border: 1px solid rgba(0,255,136,0.3); }
.dlc-intermediate { background: rgba(0,210,255,0.2); color: var(--accent-blue); border: 1px solid rgba(0,210,255,0.3); }
.dlc-advanced { background: rgba(248,32,176,0.2); color: var(--accent-pink); border: 1px solid rgba(248,32,176,0.3); }
.dlc-badge-lock {
    position: absolute;
    top: 0.6rem;
    right: 0.6rem;
    width: 28px; height: 28px;
    background: rgba(0,0,0,0.6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: var(--text-muted);
}
.dlc-info { padding: 0.8rem 1rem; }
.dlc-title { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.3rem; }
.dlc-meta { font-size: 0.78rem; color: var(--text-muted); display: flex; align-items: center; gap: 0.4rem; }

/* ── WEBCAM ZONE ── */
.webcam-zone {
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
}
.webcam-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.2rem;
}
.webcam-header h3 { font-size: 1rem; display: flex; align-items: center; gap: 0.6rem; }
.webcam-header h3 i { color: var(--accent-pink); }
.webcam-controls { display: flex; gap: 0.8rem; }
.webcam-view {
    width: 100%;
    height: 280px;
    background: rgba(0,0,0,0.4);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.dance-webcam-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}
.dance-webcam-video.active { display: block; }
.webcam-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    text-align: center;
    max-width: 320px;
}
.webcam-placeholder i { font-size: 3rem; opacity: 0.3; }
.webcam-pose-overlay {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
}
.pose-hint-box {
    background: rgba(0,255,136,0.1);
    border: 1px solid rgba(0,255,136,0.3);
    border-radius: var(--border-radius-sm);
    padding: 0.6rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    backdrop-filter: blur(10px);
    white-space: nowrap;
}

/* ── PERFORMANCE COACH ── */
.coach-hero {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, rgba(248,32,176,0.1), rgba(138,43,226,0.15));
    position: relative;
    overflow: hidden;
}
.coach-icon-wrap { position: relative; flex-shrink: 0; }
.coach-ai-avatar {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #f820b0, #8a2be2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: white;
    position: relative;
    z-index: 1;
}
.coach-ai-ring {
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid rgba(248,32,176,0.5);
    animation: coach-ring 2s ease-in-out infinite;
}
@keyframes coach-ring { 0%,100% { transform: scale(1); opacity: 0.5; } 50% { transform: scale(1.08); opacity: 1; } }
.coach-hero-content { flex: 1; }

/* ── PILLARS GRID ── */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.2rem;
    margin-bottom: 2rem;
}
.pillar-card {
    border-radius: var(--border-radius-md);
    padding: 1.2rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid var(--glass-border);
}
.pillar-card:hover { transform: translateY(-3px); border-color: rgba(138,43,226,0.4); }
.pillar-card.locked-pillar { opacity: 0.6; }
.pillar-icon {
    width: 48px; height: 48px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    margin-bottom: 1rem;
}
.pillar-content { margin-bottom: 0.8rem; }
.pillar-name { font-weight: 700; font-size: 1rem; margin-bottom: 0.3rem; }
.pillar-desc { font-size: 0.82rem; color: var(--text-muted); line-height: 1.4; }
.pillar-prog-wrap {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.5rem;
}
.pillar-prog-wrap .progress-sm { flex: 1; }
.pillar-expand-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16,1,0.3,1), opacity 0.3s ease;
    opacity: 0;
}
.pillar-card.expanded .pillar-expand-content {
    max-height: 400px;
    opacity: 1;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--glass-border);
}

/* Pillar Lessons */
.pillar-lessons { display: flex; flex-direction: column; gap: 0.5rem; }
.pl-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    padding: 0.4rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.pl-done { color: var(--text-muted); }
.pl-done i { color: var(--accent-green); }
.pl-active { color: white; font-weight: 600; }
.locked-lesson { color: rgba(255,255,255,0.2); }

/* ── PERFORMANCE CHALLENGE ── */
.perf-challenge {
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    background: linear-gradient(135deg, rgba(255,154,0,0.1), rgba(248,32,176,0.1));
    border: 1px solid rgba(255,154,0,0.3);
}
.challenge-header { display: flex; justify-content: space-between; align-items: flex-start; }
.challenge-xp {
    background: linear-gradient(135deg, #f6d365, #fda085);
    color: #000;
    font-weight: 800;
    font-size: 1.1rem;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    flex-shrink: 0;
}
.challenge-steps {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.cs-step {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(255,255,255,0.05);
    border-radius: var(--border-radius-sm);
    padding: 0.5rem 0.8rem;
    font-size: 0.82rem;
}
.cs-num {
    width: 22px; height: 22px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}
.cs-arrow { color: var(--text-muted); font-size: 0.7rem; }

/* ── REFERENCE GRID ── */
.reference-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1rem; }
.ref-card {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    padding: 1.2rem;
    border-radius: var(--border-radius-md);
    transition: var(--transition-fast);
}
.ref-card:hover { transform: translateY(-2px); }
.ref-icon {
    width: 52px; height: 52px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}
.ref-info { flex: 1; }
.ref-name { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.2rem; }
.ref-desc { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.5rem; }
.ref-tags { display: flex; gap: 0.4rem; flex-wrap: wrap; }

/* ── BUTTON SMALL ── */
.btn-sm { padding: 0.5rem 1rem !important; font-size: 0.82rem !important; }

/* ── TOAST (ensure accessible across new tabs) ── */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(18,20,28,0.95);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    padding: 1rem 2rem;
    color: white;
    font-size: 0.9rem;
    backdrop-filter: blur(20px);
    z-index: 999;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); }