/**
 * booking-public.css — Page publique de réservation /book/:slug
 * Premium dark design — v=300
 */

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

:root {
    --bkp-accent: var(--bkp-primary, #8B5CF6);
    --bkp-accent-light: color-mix(in srgb, var(--bkp-accent) 80%, #fff);
    --bkp-accent-glow: color-mix(in srgb, var(--bkp-accent) 25%, transparent);
    --bkp-bg: #0a0a14;
    --bkp-bg2: #0f0f1a;
    --bkp-card: #141424;
    --bkp-card2: #1a1a2e;
    --bkp-border: rgba(255,255,255,0.06);
    --bkp-border-hover: rgba(255,255,255,0.12);
    --bkp-text: #e2e8f0;
    --bkp-muted: #94a3b8;
    --bkp-success: #10b981;
    --bkp-error: #ef4444;
    --bkp-warning: #f59e0b;
    --bkp-radius: 14px;
    --bkp-radius-sm: 10px;
    --bkp-shadow: 0 4px 24px rgba(0,0,0,0.4);
    --bkp-glow: 0 0 60px var(--bkp-accent-glow);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bkp-bg);
    color: var(--bkp-text);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ─── Background effects ─────────────────────────────────────────────── */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 20%, var(--bkp-accent-glow) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 80%, rgba(99,102,241,0.06) 0%, transparent 40%);
    pointer-events: none;
    z-index: 0;
}

/* ─── Layout ────────────────────────────────────────────────────────── */
.bkp-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

.bkp-container {
    width: 100%;
    max-width: 860px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ─── Top bar ───────────────────────────────────────────────────────── */
.bkp-topbar {
    padding: 16px 0;
    border-bottom: 1px solid var(--bkp-border);
    background: rgba(10,10,20,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.bkp-topbar-inner {
    display: flex;
    align-items: center;
    gap: 10px;
}

.bkp-brand-dot {
    width: 10px;
    height: 10px;
    background: var(--bkp-accent);
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: 0 0 12px var(--bkp-accent-glow);
}

.bkp-brand-name {
    font-weight: 800;
    font-size: 0.9rem;
    color: var(--bkp-text);
    letter-spacing: -0.02em;
}

/* ─── Profile section ───────────────────────────────────────────────── */
.bkp-profile-section { padding: 48px 0 28px; }

#bkp-profile-header {
    display: flex;
    align-items: center;
    gap: 24px;
}

.bkp-profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--bkp-accent), color-mix(in srgb, var(--bkp-accent) 60%, #ec4899));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 0 32px var(--bkp-accent-glow);
    position: relative;
}

.bkp-profile-avatar::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    border: 2px solid color-mix(in srgb, var(--bkp-accent) 30%, transparent);
}

.bkp-profile-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.bkp-profile-info { flex: 1; }

.bkp-profile-name {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}

.bkp-profile-bio {
    font-size: 0.9rem;
    color: var(--bkp-muted);
    line-height: 1.6;
    max-width: 500px;
}

/* ─── Main content ──────────────────────────────────────────────────── */
.bkp-main-section {
    flex: 1;
    padding: 0 0 60px;
}

#bkp-main { padding-top: 8px; }

/* ─── Step title ────────────────────────────────────────────────────── */
.bkp-step-title { margin-bottom: 28px; }

.bkp-step-title h2 {
    font-size: 1.4rem;
    font-weight: 800;
    margin: 8px 0 6px;
    letter-spacing: -0.02em;
}

.bkp-step-title p {
    font-size: 0.9rem;
    color: var(--bkp-muted);
}

.bkp-back-btn {
    background: none;
    border: none;
    color: var(--bkp-accent-light);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 4px 0;
    margin-bottom: 6px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: opacity 0.2s;
}

.bkp-back-btn:hover { opacity: 0.7; }

/* ─── Offers grid ───────────────────────────────────────────────────── */
.bkp-offers-grid {
    display: grid;
    gap: 16px;
}

.bkp-offer-card {
    background: var(--bkp-card);
    border-radius: var(--bkp-radius);
    border: 1px solid var(--bkp-border);
    cursor: pointer;
    overflow: hidden;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    display: flex;
    flex-direction: column;
    position: relative;
}

.bkp-offer-card:hover {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--bkp-accent) 40%, transparent);
    box-shadow: var(--bkp-glow);
}

.bkp-offer-accent { height: 3px; flex-shrink: 0; }

.bkp-offer-body {
    padding: 22px 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.bkp-offer-title {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.bkp-offer-desc {
    font-size: 0.85rem;
    color: var(--bkp-muted);
    line-height: 1.5;
}

.bkp-offer-meta { display: flex; gap: 8px; flex-wrap: wrap; }

.bkp-chip {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    background: rgba(255,255,255,0.05);
    color: var(--bkp-muted);
}

.bkp-chip-price { background: rgba(245,158,11,0.12); color: #fbbf24; }
.bkp-chip-free  { background: rgba(16,185,129,0.12); color: #6ee7b7; }

.bkp-payment-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--bkp-muted);
    background: rgba(255,255,255,0.03);
    border-radius: 8px;
    padding: 8px 12px;
    line-height: 1.4;
}

.bkp-payment-icon { font-size: 0.9rem; }

.bkp-offer-select-btn {
    padding: 14px 24px;
    text-align: right;
    font-size: 0.85rem;
    color: var(--bkp-accent-light);
    font-weight: 700;
    border-top: 1px solid var(--bkp-border);
    transition: background 0.2s;
}

.bkp-offer-card:hover .bkp-offer-select-btn {
    background: rgba(255,255,255,0.02);
}

/* ─── Calendar ──────────────────────────────────────────────────────── */
.bkp-calendar-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 24px;
    align-items: start;
}

.bkp-calendar-left {
    background: var(--bkp-card);
    border-radius: var(--bkp-radius);
    border: 1px solid var(--bkp-border);
    padding: 24px;
}

.bkp-month-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.bkp-month-label {
    font-size: 1.05rem;
    font-weight: 700;
    text-transform: capitalize;
    letter-spacing: -0.01em;
}

.bkp-nav-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--bkp-border);
    background: transparent;
    color: var(--bkp-text);
    cursor: pointer;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease-out, background 0.2s ease-out, border-color 0.2s ease-out, color 0.2s ease-out, opacity 0.2s ease-out;
}

.bkp-nav-btn:hover {
    background: rgba(255,255,255,0.06);
    border-color: var(--bkp-border-hover);
}

.bkp-cal-headers {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    margin-bottom: 8px;
}

.bkp-cal-head {
    text-align: center;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--bkp-muted);
    padding: 8px 0;
}

.bkp-cal-body {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.bkp-cal-day {
    aspect-ratio: 1;
    border-radius: var(--bkp-radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(148,163,184,0.5);
    position: relative;
    cursor: default;
    user-select: none;
    transition: transform 0.2s ease-out, background 0.2s ease-out, border-color 0.2s ease-out, color 0.2s ease-out, opacity 0.2s ease-out;
}

.bkp-cal-empty { background: transparent; }
.bkp-cal-past { opacity: 0.25; }

.bkp-cal-available {
    background: color-mix(in srgb, var(--bkp-accent) 6%, transparent);
    color: var(--bkp-text);
    cursor: pointer;
    border: 1px solid color-mix(in srgb, var(--bkp-accent) 15%, transparent);
    font-weight: 600;
}

.bkp-cal-available:hover {
    background: color-mix(in srgb, var(--bkp-accent) 15%, transparent);
    border-color: color-mix(in srgb, var(--bkp-accent) 40%, transparent);
    transform: scale(1.05);
}

.bkp-cal-selected {
    background: var(--bkp-accent) !important;
    color: #fff !important;
    border-color: var(--bkp-accent) !important;
    font-weight: 700;
    box-shadow: 0 0 20px var(--bkp-accent-glow);
    transform: scale(1.05);
}

.bkp-cal-dot {
    position: absolute;
    bottom: 5px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--bkp-accent-light);
}

.bkp-cal-selected .bkp-cal-dot { background: rgba(255,255,255,0.7); }

/* ─── Slots panel ───────────────────────────────────────────────────── */
.bkp-slots-panel {
    background: var(--bkp-card);
    border-radius: var(--bkp-radius);
    border: 1px solid var(--bkp-border);
    padding: 22px;
    min-height: 220px;
}

.bkp-slots-hint {
    color: var(--bkp-muted);
    font-size: 0.85rem;
    text-align: center;
    padding: 40px 16px;
    line-height: 1.6;
}

.bkp-slots-date {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 16px;
    text-transform: capitalize;
}

.bkp-slots-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.bkp-slot-btn {
    padding: 11px;
    text-align: center;
    border-radius: var(--bkp-radius-sm);
    border: 1px solid var(--bkp-border);
    background: rgba(255,255,255,0.02);
    color: var(--bkp-text);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    transition: transform 0.2s ease-out, background 0.2s ease-out, border-color 0.2s ease-out, color 0.2s ease-out, opacity 0.2s ease-out;
}

.bkp-slot-btn:hover {
    border-color: color-mix(in srgb, var(--bkp-accent) 50%, transparent);
    background: color-mix(in srgb, var(--bkp-accent) 10%, transparent);
    color: var(--bkp-accent-light);
}

.bkp-slot-btn.selected {
    background: var(--bkp-accent);
    border-color: var(--bkp-accent);
    color: #fff;
    box-shadow: 0 4px 16px var(--bkp-accent-glow);
}

/* ─── Form ──────────────────────────────────────────────────────────── */
.bkp-form-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 28px;
    align-items: start;
}

.bkp-booking-summary {
    background: var(--bkp-card);
    border-radius: var(--bkp-radius);
    border: 1px solid var(--bkp-border);
    padding: 24px;
    position: sticky;
    top: 80px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.bkp-summary-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--bkp-muted);
    margin-bottom: 4px;
}

.bkp-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.03);
}

.bkp-summary-row:last-child { border-bottom: none; }
.bkp-summary-row span { color: var(--bkp-muted); flex-shrink: 0; }
.bkp-summary-row strong { color: var(--bkp-text); text-align: right; }

.bkp-summary-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0 0;
    border-top: 2px solid var(--bkp-border);
    margin-top: 4px;
}

.bkp-summary-total span {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--bkp-text);
}

.bkp-summary-total strong {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--bkp-accent-light);
}

.bkp-form { display: flex; flex-direction: column; gap: 18px; }

.bkp-form-group { display: flex; flex-direction: column; gap: 6px; }

.bkp-label {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--bkp-muted);
}

.bkp-input, .bkp-textarea {
    padding: 12px 16px;
    background: var(--bkp-bg2);
    border: 1px solid var(--bkp-border);
    border-radius: var(--bkp-radius-sm);
    color: var(--bkp-text);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.bkp-input:focus, .bkp-textarea:focus {
    outline: none;
    border-color: var(--bkp-accent);
    box-shadow: 0 0 0 3px var(--bkp-accent-glow);
}

.bkp-input::placeholder, .bkp-textarea::placeholder {
    color: rgba(148,163,184,0.4);
}

.bkp-textarea { resize: vertical; min-height: 90px; }

.bkp-payment-notice {
    background: rgba(245,158,11,0.06);
    border: 1px solid rgba(245,158,11,0.15);
    border-radius: var(--bkp-radius-sm);
    padding: 16px;
    font-size: 0.85rem;
    color: #fcd34d;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.bkp-form-error {
    background: rgba(239,68,68,0.08);
    border: 1px solid rgba(239,68,68,0.2);
    border-radius: var(--bkp-radius-sm);
    padding: 12px 16px;
    color: #f87171;
    font-size: 0.85rem;
}

.bkp-submit-btn {
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--bkp-accent), color-mix(in srgb, var(--bkp-accent) 70%, #ec4899));
    color: #fff;
    border: none;
    border-radius: var(--bkp-radius-sm);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    transition: transform 0.25s ease-out, background 0.25s ease-out, border-color 0.25s ease-out, color 0.25s ease-out, opacity 0.25s ease-out;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.bkp-submit-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(255,255,255,0.1), transparent);
    pointer-events: none;
}

.bkp-submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--bkp-accent-glow);
}

.bkp-submit-btn:active:not(:disabled) {
    transform: translateY(0);
}

.bkp-submit-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.bkp-btn-new {
    margin-top: 8px;
    background: transparent;
    border: 2px solid color-mix(in srgb, var(--bkp-accent) 40%, transparent);
    color: var(--bkp-accent-light);
}

.bkp-btn-new::after { display: none; }

.bkp-btn-new:hover:not(:disabled) {
    background: color-mix(in srgb, var(--bkp-accent) 10%, transparent);
    border-color: var(--bkp-accent);
}

/* ─── Confirmation ──────────────────────────────────────────────────── */
.bkp-confirmed-card {
    max-width: 540px;
    margin: 0 auto;
    text-align: center;
    padding: 48px 36px;
    background: var(--bkp-card);
    border-radius: 20px;
    border: 1px solid rgba(16,185,129,0.2);
    box-shadow: 0 0 60px rgba(16,185,129,0.06);
    position: relative;
    overflow: hidden;
}

.bkp-confirmed-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--bkp-success), #34d399, var(--bkp-success));
}

.bkp-confirmed-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    display: block;
}

.bkp-confirmed-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}

.bkp-confirmed-sub {
    color: var(--bkp-muted);
    font-size: 0.9rem;
    margin-bottom: 28px;
}

.bkp-confirmed-details {
    background: rgba(255,255,255,0.03);
    border-radius: 12px;
    padding: 20px 24px;
    margin-bottom: 24px;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.bkp-confirmed-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    font-size: 0.875rem;
}

.bkp-confirmed-row span { color: var(--bkp-muted); }
.bkp-confirmed-row strong { color: var(--bkp-text); }
.bkp-confirmed-link { color: var(--bkp-accent-light); font-size: 0.82rem; word-break: break-all; }

.bkp-confirmed-note {
    font-size: 0.82rem;
    color: var(--bkp-muted);
    margin-bottom: 24px;
    line-height: 1.7;
}

/* ─── Loading & States ──────────────────────────────────────────────── */
.bkp-loading {
    padding: 48px;
    text-align: center;
    color: var(--bkp-muted);
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.bkp-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--bkp-border);
    border-top-color: var(--bkp-accent);
    border-radius: 50%;
    animation: bkp-spin 0.8s linear infinite;
}

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

.bkp-error {
    padding: 18px;
    background: rgba(239,68,68,0.06);
    border: 1px solid rgba(239,68,68,0.15);
    border-radius: var(--bkp-radius-sm);
    color: #f87171;
    font-size: 0.875rem;
}

.bkp-empty {
    padding: 60px 32px;
    text-align: center;
    color: var(--bkp-muted);
    font-size: 0.95rem;
}

/* ─── Footer ────────────────────────────────────────────────────────── */
.bkp-footer {
    padding: 24px 0;
    border-top: 1px solid var(--bkp-border);
    text-align: center;
    font-size: 0.78rem;
    color: rgba(148,163,184,0.5);
}

.bkp-footer strong {
    color: var(--bkp-muted);
    font-weight: 600;
}

/* ─── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 720px) {
    .bkp-calendar-layout { grid-template-columns: 1fr; }
    .bkp-form-layout { grid-template-columns: 1fr; }
    .bkp-booking-summary { position: static; order: -1; }
    #bkp-profile-header { flex-direction: column; text-align: center; }
    .bkp-profile-section { padding: 32px 0 20px; }
    .bkp-profile-bio { max-width: 100%; }
    .bkp-slots-grid { grid-template-columns: repeat(3, 1fr); }
    .bkp-container { padding: 0 16px; }
    .bkp-calendar-left { padding: 18px; }
    .bkp-confirmed-card { padding: 36px 24px; }
}

@media (max-width: 420px) {
    .bkp-slots-grid { grid-template-columns: repeat(2, 1fr); }
    .bkp-profile-name { font-size: 1.3rem; }
    .bkp-step-title h2 { font-size: 1.2rem; }
}