/* ═══════════════════════════════════════════
   BOOKING PAGE — CHIPMUNK NAILS
   ═══════════════════════════════════════════ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #faf8f5;
    --white: #ffffff;
    --dark: #2c2c2c;
    --gray: #7a7a7a;
    --gray-light: #b8b0a8;
    --border: #e5ddd5;
    --accent: #c9a88c;
    --accent-dark: #a8825f;
    --success: #10b981;
    --error: #ef4444;
    
    --font-display: 'Playfair Display', serif;
    --font-body: 'Poppins', sans-serif;
    
    --container: 1000px;
    --radius: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.7;
    color: var(--dark);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.hidden { display: none !important; }

/* ═══════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════ */
.header {
    padding: 20px 0;
    background: white;
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    color: var(--dark);
    text-decoration: none;
}

.logo-mark { color: var(--accent); }
.logo-text span { color: var(--accent); }

.btn-back {
    font-size: 14px;
    color: var(--gray);
    text-decoration: none;
    transition: color 0.3s;
}

.btn-back:hover { color: var(--accent-dark); }

/* ═══════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════ */
.booking-hero {
    padding: 60px 0 40px;
    text-align: center;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent-dark);
    margin-bottom: 16px;
}

.booking-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 500;
    margin-bottom: 12px;
}

.booking-hero p {
    color: var(--gray);
    font-size: 16px;
}

/* ═══════════════════════════════════════════
   MAIN
   ═══════════════════════════════════════════ */
.booking-main {
    padding: 20px 0 100px;
}

/* ═══════════════════════════════════════════
   STEP
   ═══════════════════════════════════════════ */
.step {
    background: white;
    border-radius: var(--radius);
    padding: 32px;
    margin-bottom: 24px;
    border: 1px solid var(--border);
    animation: fadeUp 0.4s ease;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.step-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

.step-num {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent);
    color: white;
    font-weight: 700;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.step-header h2 {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 500;
    flex: 1;
}

.chosen-date {
    font-size: 13px;
    color: var(--accent-dark);
    font-weight: 600;
    background: rgba(201, 168, 140, 0.12);
    padding: 6px 14px;
    border-radius: 100px;
}

/* ═══════════════════════════════════════════
   CALENDAR
   ═══════════════════════════════════════════ */
.calendar-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.calendar-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    color: var(--dark);
}

.calendar-nav {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: white;
    font-size: 20px;
    color: var(--dark);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.calendar-nav:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    margin-bottom: 12px;
}

.calendar-weekdays div {
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray);
    padding: 8px 0;
}

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

.cal-day {
    aspect-ratio: 1;
    border: 1px solid transparent;
    background: white;
    border-radius: 8px;
    font-family: inherit;
    font-size: 15px;
    color: var(--dark);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 0;
}

.cal-day:not(:disabled):hover {
    background: rgba(201, 168, 140, 0.1);
    border-color: var(--accent);
}

.cal-day:disabled {
    color: var(--gray-light);
    cursor: not-allowed;
    opacity: 0.4;
}

.cal-day.other-month {
    color: var(--gray-light);
    opacity: 0.3;
    cursor: default;
}

.cal-day.today {
    font-weight: 700;
    color: var(--accent-dark);
}

.cal-day.today::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent-dark);
}

.cal-day.selected {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    font-weight: 600;
}

.cal-day.selected::after {
    background: white;
}

.cal-day.full {
    background: rgba(239, 68, 68, 0.08);
    color: var(--error);
}

.cal-day .dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
}

.cal-day.full .dot { background: var(--error); }

/* ═══════════════════════════════════════════
   TIME SLOTS
   ═══════════════════════════════════════════ */
.time-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 10px;
}

.time-slot {
    padding: 16px 12px;
    border-radius: 10px;
    border: 2px solid var(--border);
    background: white;
    font-family: inherit;
    font-size: 15px;
    font-weight: 500;
    color: var(--dark);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.time-slot:not(:disabled):hover {
    border-color: var(--accent);
    background: rgba(201, 168, 140, 0.05);
}

.time-slot:disabled {
    cursor: not-allowed;
    background: #f5f5f5;
    color: var(--gray-light);
    border-color: #eee;
    text-decoration: line-through;
    opacity: 0.6;
}

.time-slot.selected {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

/* Slot đã có người đặt - vẫn click được để xem ai */
.time-slot.slot-booked {
    background: rgba(59, 130, 246, 0.08);
    border-color: #3b82f6;
    color: #3b82f6;
    cursor: pointer;
    text-decoration: none;
    opacity: 1;
}

.time-slot.slot-booked::after {
    content: ' 👤';
    font-size: 11px;
}

.time-slot.slot-booked:hover {
    background: rgba(59, 130, 246, 0.15);
    transform: translateY(-2px);
}

/* ═══════════════════════════════════════════
   FORM
   ═══════════════════════════════════════════ */
.booking-form {
    max-width: 500px;
    margin: 0 auto;
}

.chosen-summary {
    background: rgba(201, 168, 140, 0.1);
    border-left: 4px solid var(--accent);
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 24px;
    font-size: 14px;
}

.chosen-summary strong {
    color: var(--accent-dark);
}

/* ═══ FORM GROUP — FIX LAYOUT ═══ */
.form-group {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px;
    margin-bottom: 18px;
    width: 100%;
}

.form-group.full {
    grid-column: span 2;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--dark);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: inherit;
    font-size: 15px;
    color: var(--dark);
    background: white;
    outline: none;
    transition: var(--transition);
    box-sizing: border-box;
}

/* ═══ TEXTAREA — FIX SIZE ═══ */
.form-group textarea {
    width: 100% !important;
    min-height: 120px !important;
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: inherit;
    font-size: 15px;
    color: var(--dark);
    background: white;
    outline: none;
    resize: vertical;
    line-height: 1.5;
    box-sizing: border-box;
    transition: var(--transition);
    display: block;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(201, 168, 140, 0.15);
}

.btn-submit {
    width: 100%;
    padding: 18px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 10px;
    font-family: inherit;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 12px;
}

.btn-submit:hover:not(:disabled) {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(201, 168, 140, 0.3);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ═══════════════════════════════════════════
   SUCCESS
   ═══════════════════════════════════════════ */
.success-card {
    background: white;
    border-radius: var(--radius);
    padding: 60px 40px;
    text-align: center;
    border: 1px solid var(--border);
    max-width: 500px;
    margin: 0 auto;
    animation: fadeUp 0.5s ease;
}

.success-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--success);
    color: white;
    font-size: 40px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    animation: pop 0.5s ease;
}

@keyframes pop {
    0% { transform: scale(0); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.success-card h2 {
    font-family: var(--font-display);
    font-size: 28px;
    margin-bottom: 12px;
}

.success-card > p {
    color: var(--gray);
    margin-bottom: 32px;
}

.success-info {
    background: var(--bg);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 32px;
    text-align: left;
}

.success-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px dashed var(--border);
}

.success-row:last-child { border-bottom: none; }

.success-row span {
    font-size: 14px;
    color: var(--gray);
}

.success-row strong {
    font-family: var(--font-display);
    font-size: 18px;
    color: var(--accent-dark);
}

.success-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 14px 28px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover { background: var(--accent-dark); }

.btn-secondary {
    background: white;
    color: var(--dark);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent-dark);
}

/* ═══════════════════════════════════════════
   TOAST
   ═══════════════════════════════════════════ */
.toast {
    position: fixed;
    top: 24px;
    right: 24px;
    padding: 14px 22px;
    border-radius: 10px;
    background: white;
    color: var(--dark);
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    z-index: 9999;
    font-size: 14px;
    animation: slideIn 0.3s ease;
    max-width: 340px;
    border-left: 4px solid var(--success);
}

.toast.error { border-left-color: var(--error); }

@keyframes slideIn {
    from { transform: translateX(400px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 640px) {
    .step { padding: 24px 20px; }
    .calendar-title { font-size: 18px; }
    .cal-day { font-size: 14px; }
    .time-grid {
        grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
        gap: 8px;
    }
    .time-slot { padding: 12px 8px; font-size: 14px; }
    .success-card { padding: 40px 24px; }
    .success-card h2 { font-size: 22px; }
    .success-actions { flex-direction: column; }
    .step-header { flex-direction: column; align-items: flex-start; }
    .form-group textarea { min-height: 100px !important; }
}