/* ============================================
   Phase 8-9: Experience Center + Personalization
   ============================================ */

/* ── Experience Center Section ── */
.experience-section {
    max-width: 1200px;
    margin: 60px auto;
    padding: 0 20px;
}
.experience-section .section-header h2 {
    font-size: 2rem;
}
#experience-center {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.demo-card {
    background: rgba(13, 17, 23, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    overflow: hidden;
    transition: border-color 0.3s;
}
.demo-card:hover {
    border-color: rgba(124, 106, 255, 0.25);
}
.demo-card-header {
    padding: 16px 20px 8px;
}
.demo-card-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 2px;
}
.demo-card-header p {
    font-size: 0.7rem;
    color: var(--text-muted, #8b949e);
}
.demo-card-body {
    padding: 12px 20px 20px;
}

/* Piano demo */
.demo-piano {
    display: flex;
    gap: 4px;
}
.piano-key {
    flex: 1;
    height: 80px;
    background: linear-gradient(180deg, #fff 0%, #e8e8e8 100%);
    border: 1px solid rgba(0,0,0,0.15);
    border-radius: 0 0 6px 6px;
    font-size: 0.65rem;
    font-weight: 600;
    color: #333;
    cursor: pointer;
    transition: background 0.1s, transform 0.1s;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 8px;
}
.piano-key:hover {
    background: linear-gradient(180deg, #f0f0ff 0%, #d8d8ff 100%);
}
.piano-key.pressed {
    background: linear-gradient(180deg, #c8c0ff 0%, #7c6aff 100%);
    color: #fff;
    transform: scaleY(0.97);
}

/* Tarot demo */
.demo-tarot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.tarot-card-flip {
    width: 120px;
    height: 180px;
    perspective: 600px;
    cursor: pointer;
    position: relative;
}
.tarot-front, .tarot-back {
    position: absolute;
    inset: 0;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-weight: 600;
    transition: transform 0.6s;
    backface-visibility: hidden;
    padding: 12px;
}
.tarot-front {
    background: linear-gradient(135deg, #1a1140 0%, #2d1b69 50%, #0d0d2b 100%);
    border: 1px solid rgba(124, 106, 255, 0.3);
    color: #c0b0ff;
    font-size: 0.9rem;
}
.tarot-back {
    background: linear-gradient(135deg, #7c6aff 0%, #06b6d4 100%);
    color: #fff;
    font-size: 0.75rem;
    transform: rotateY(180deg);
}
.tarot-card-flip.flipped .tarot-front {
    transform: rotateY(180deg);
}
.tarot-card-flip.flipped .tarot-back {
    transform: rotateY(0);
}
.tarot-result {
    font-size: 0.75rem;
    color: var(--text-secondary, #b0b0b0);
    min-height: 1.2em;
}

/* Color demo */
.demo-color label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--text-secondary, #b0b0b0);
    margin-bottom: 6px;
}
.demo-color input[type=range] {
    flex: 1;
    accent-color: #7c6aff;
}

/* Generic demo button */
.demo-btn {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, #7c6aff, #06b6d4);
    color: #fff;
    font-weight: 600;
    font-size: 0.8rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: opacity 0.2s;
}
.demo-btn:hover {
    opacity: 0.85;
}

/* ── Recently Used Apps Bar ── */
.recent-section {
    max-width: 1200px;
    margin: 30px auto 0;
    padding: 0 20px;
}
.recent-header {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
}
.recent-sub {
    font-size: 0.7rem;
    color: var(--text-muted, #8b949e);
    font-weight: 400;
}
.recent-track {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    scrollbar-width: none;
    padding-bottom: 8px;
}
.recent-track::-webkit-scrollbar { display: none; }
.recent-chip {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 100px;
    text-decoration: none;
    color: #fff;
    font-size: 0.8rem;
    font-weight: 500;
    transition: border-color 0.3s, background 0.3s;
}
.recent-chip:hover {
    border-color: rgba(124, 106, 255, 0.3);
    background: rgba(124, 106, 255, 0.08);
}
.recent-chip-icon {
    font-size: 1rem;
}

/* ── Toast Notifications ── */
.adg-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: rgba(20, 24, 30, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 0.8rem;
    padding: 10px 24px;
    border-radius: 12px;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    pointer-events: none;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}
.adg-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ── Responsive ── */
@media (max-width: 700px) {
    #experience-center {
        grid-template-columns: 1fr;
    }
}