/* ═══════════════════════════════════════════════════════
   Podcast Studio Bookings — Frontend Styles
   Mobile-first, dark mode, accessible
   Neural network theme — LabCid brand (#0B44C0)
   ═══════════════════════════════════════════════════════ */

/* ─── Reset & Base ─── */
.psb-booking {
    --psb-bg: #070b18;
    --psb-bg-gradient: linear-gradient(160deg, #070b18 0%, #0c1530 40%, #0f1d45 100%);
    --psb-surface: rgba(15, 25, 55, 0.75);
    --psb-surface-hover: rgba(20, 35, 75, 0.85);
    --psb-border: rgba(92, 225, 230, 0.12);
    --psb-border-hover: rgba(92, 225, 230, 0.25);
    --psb-text: #e8f4ff;
    --psb-text-muted: #8fa3c4;
    --psb-text-dim: #5a6f94;
    --psb-accent: #0B44C0;
    --psb-accent-hover: #093DA6;
    --psb-cyan: #5ce1e6;
    --psb-cyan-dim: rgba(92, 225, 230, 0.15);
    --psb-cyan-glow: rgba(92, 225, 230, 0.3);
    --psb-warn: #ffb703;
    --psb-danger: #ef476f;
    --psb-info: #219ebc;
    --psb-prep: #7e57c2;
    --psb-rec: #0B44C0;
    --psb-clean: #ff7043;
    --psb-radius: 12px;
    --psb-radius-sm: 8px;

    font-family: 'Sora', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--psb-text);
    background: transparent;
    padding: 2rem 1.5rem 4rem;
    max-width: 580px;
    margin: 0 auto;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-sizing: border-box;
}

.psb-booking *,
.psb-booking *::before,
.psb-booking *::after {
    box-sizing: border-box;
}

.psb-booking::before {
    content: '\1F399';
    font-size: 2.5rem;
    display: block;
    text-align: center;
    margin-bottom: 0.75rem;
    filter: drop-shadow(0 0 12px rgba(92, 225, 230, 0.4));
}

/* ─── Steps ─── */
.psb-step {
    margin-bottom: 2rem;
    width: 100%;
}

.psb-step-title {
    font-family: 'Orbitron', monospace, sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--psb-cyan);
    margin: 0 0 1rem;
    text-align: center;
    text-shadow: 0 0 20px rgba(92, 225, 230, 0.25);
}

/* ─── Room Buttons ─── */
.psb-rooms {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}

@media (min-width: 480px) {
    .psb-rooms { grid-template-columns: 1fr 1fr; }
}

.psb-room-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: 1rem;
    background: var(--psb-surface);
    border: 2px solid var(--psb-border);
    border-radius: var(--psb-radius);
    color: var(--psb-text);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    font-size: 1rem;
    backdrop-filter: blur(8px);
}

.psb-room-btn:hover,
.psb-room-btn:focus-visible {
    background: var(--psb-surface-hover);
    border-color: var(--psb-cyan);
    box-shadow: 0 0 16px rgba(92, 225, 230, 0.12);
}

.psb-room-btn.psb-active {
    border-color: var(--psb-cyan);
    background: var(--psb-cyan-dim);
    box-shadow: 0 0 20px rgba(92, 225, 230, 0.15), inset 0 0 20px rgba(92, 225, 230, 0.05);
}

.psb-room-name {
    font-weight: 700;
    font-size: 1.1rem;
}

.psb-room-hours {
    font-size: 0.85rem;
    color: var(--psb-text-muted);
}

/* ─── Calendar ─── */
.psb-calendar-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.psb-calendar-nav button {
    background: var(--psb-surface);
    border: 2px solid var(--psb-border);
    border-radius: var(--psb-radius-sm);
    color: var(--psb-text);
    padding: 0.6rem 1rem;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: 700;
    transition: all 0.2s;
    min-width: 44px;
    min-height: 44px;
    line-height: 1;
    backdrop-filter: blur(8px);
}

.psb-calendar-nav button:hover {
    background: var(--psb-surface-hover);
    border-color: var(--psb-cyan);
    color: var(--psb-cyan);
}

.psb-cal-month-year {
    font-family: 'Orbitron', monospace;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--psb-text);
}

.psb-calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    text-align: center;
}

.psb-cal-header {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--psb-text-muted);
    padding: 0.5rem 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.psb-cal-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--psb-radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    background: transparent;
    border: 2px solid transparent;
    color: var(--psb-text);
    min-height: 38px;
}

.psb-cal-day:hover:not(.psb-disabled):not(.psb-selected):not(.psb-empty) {
    background: var(--psb-surface);
    border-color: var(--psb-border);
}

.psb-cal-day.psb-today {
    border-color: var(--psb-cyan);
    color: var(--psb-cyan);
    font-weight: 700;
    text-shadow: 0 0 10px rgba(92, 225, 230, 0.3);
}

.psb-cal-day.psb-selected {
    background: var(--psb-accent);
    color: #fff;
    font-weight: 700;
    border-color: var(--psb-accent);
    box-shadow: 0 0 16px rgba(11, 68, 192, 0.35);
}

.psb-cal-day.psb-disabled {
    color: #6b7fa3;
    cursor: not-allowed;
    opacity: 0.7;
    text-decoration: line-through;
    text-decoration-color: rgba(107, 127, 163, 0.3);
}

.psb-cal-day.psb-empty {
    cursor: default;
}

/* ─── Duration Buttons ─── */
.psb-durations {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.65rem;
}

@media (min-width: 480px) {
    .psb-durations { grid-template-columns: repeat(4, 1fr); }
}

.psb-duration-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    padding: 0.85rem 0.5rem;
    background: var(--psb-surface);
    border: 2px solid var(--psb-border);
    border-radius: var(--psb-radius-sm);
    color: var(--psb-text);
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    backdrop-filter: blur(8px);
}

.psb-duration-btn:hover,
.psb-duration-btn:focus-visible {
    border-color: var(--psb-cyan);
    background: var(--psb-surface-hover);
}

.psb-duration-btn.psb-active {
    border-color: var(--psb-cyan);
    background: var(--psb-cyan-dim);
}

.psb-dur-label {
    font-weight: 700;
    font-size: 1rem;
}

.psb-dur-price {
    font-size: 0.75rem;
    color: var(--psb-cyan);
}

/* ─── Slots Grid ─── */
.psb-slots-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.65rem;
}

@media (min-width: 480px) {
    .psb-slots-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 640px) {
    .psb-slots-grid { grid-template-columns: repeat(5, 1fr); }
}

.psb-slot-btn {
    padding: 0.7rem 0.3rem;
    background: var(--psb-surface);
    border: 2px solid var(--psb-border);
    border-radius: var(--psb-radius-sm);
    color: var(--psb-text);
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
    text-align: center;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
}

.psb-slot-btn:hover:not(.psb-unavailable) {
    border-color: var(--psb-cyan);
    background: var(--psb-surface-hover);
}

.psb-slot-btn.psb-selected {
    background: var(--psb-accent);
    color: #fff;
    border-color: var(--psb-accent);
    font-weight: 700;
    box-shadow: 0 0 16px rgba(11, 68, 192, 0.3);
}

.psb-slot-btn.psb-unavailable {
    opacity: 0.35;
    cursor: not-allowed;
    text-decoration: line-through;
}

.psb-slot-time {
    font-size: 0.95rem;
    font-weight: 600;
}

.psb-slot-no-slots {
    grid-column: 1 / -1;
    text-align: center;
    padding: 2rem;
    color: var(--psb-text-muted);
    font-size: 0.95rem;
}

/* ─── Slot Detail / Timeline ─── */
.psb-slot-detail {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background: var(--psb-surface);
    border-radius: var(--psb-radius);
    border: 1px solid var(--psb-border);
    backdrop-filter: blur(12px);
}

.psb-slot-timeline {
    display: flex;
    gap: 2px;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.psb-tl-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 0.25rem;
    font-size: 0.7rem;
}

.psb-tl-prep {
    background: var(--psb-prep);
    color: #fff;
    flex: 0 0 25%;
}

.psb-tl-rec {
    background: var(--psb-rec);
    color: #fff;
    flex: 1;
}

.psb-tl-clean {
    background: var(--psb-clean);
    color: #fff;
    flex: 0 0 25%;
}

.psb-tl-label {
    font-weight: 700;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.psb-tl-time {
    font-size: 0.75rem;
}

.psb-slot-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

#psb-detail-price {
    font-family: 'Orbitron', monospace;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--psb-cyan);
    text-shadow: 0 0 12px rgba(92, 225, 230, 0.3);
}

/* ─── Hold Timer ─── */
.psb-hold-timer {
    text-align: center;
    margin-bottom: 1rem;
}

.psb-timer-bar {
    width: 100%;
    height: 6px;
    background: var(--psb-border);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.psb-timer-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--psb-accent), var(--psb-cyan));
    border-radius: 3px;
    width: 100%;
    transition: width 1s linear;
}

.psb-timer-text {
    font-family: 'Orbitron', monospace;
    font-size: 0.85rem;
    color: var(--psb-warn);
    margin: 0;
}

.psb-timer-text.psb-expired {
    color: var(--psb-danger);
}

/* ─── Add to Cart Button ─── */
.psb-add-to-cart-btn {
    display: block;
    width: 100%;
    padding: 1.1rem;
    background: linear-gradient(135deg, var(--psb-accent), #0d5ce0);
    color: #fff;
    border: none;
    border-radius: var(--psb-radius);
    font-family: 'Orbitron', monospace;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.2s;
    text-transform: uppercase;
    margin-top: 1.5rem;
    box-shadow: 0 4px 20px rgba(11, 68, 192, 0.35);
}

.psb-add-to-cart-btn:hover {
    background: linear-gradient(135deg, var(--psb-accent-hover), #1070f0);
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(11, 68, 192, 0.45), 0 0 30px rgba(92, 225, 230, 0.1);
}

.psb-add-to-cart-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ─── Loading Overlay ─── */
.psb-loading {
    position: absolute;
    inset: 0;
    background: rgba(7, 11, 24, 0.88);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    border-radius: var(--psb-radius);
}

.psb-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--psb-border);
    border-top-color: var(--psb-cyan);
    border-radius: 50%;
    animation: psb-spin 0.8s linear infinite;
}

@keyframes psb-spin {
    to { transform: rotate(360deg); }
}

/* ─── Neural Network Background ─── */
.psb-neural-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.psb-neural-bg canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* Content sits above the neural bg */
.psb-booking-app {
    position: relative;
    z-index: 1;
    width: 100%;
    min-height: 100vh;
    background: var(--psb-bg-gradient);
}

.psb-booking {
    position: relative;
    z-index: 1;
}

/* ─── Responsive ─── */
@media (max-width: 360px) {
    .psb-booking { padding: 1rem 0.75rem 3rem; }
    .psb-durations { grid-template-columns: repeat(2, 1fr); }
    .psb-slots-grid { grid-template-columns: repeat(2, 1fr); }
    .psb-step-title { font-size: 0.8rem; }
    .psb-cal-day { font-size: 0.85rem; min-height: 34px; }
}