@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;500;600;700&family=Noto+Sans+JP:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #8b6f5c;
    --primary-light: #a4897a;
    --primary-dark: #6b5344;
    --accent: #c4956a;
    --accent-light: #e8cdb5;
    --secondary: #8c8584;
    --bg: #f7f4f2;
    --card: #ffffff;
    --text: #3d3331;
    --text-light: #6b5f5d;
    --border: #e8e0dc;
    --success: #7a9e7e;
    --danger: #b5666a;
    --gold: #b8963e;
}

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

body {
    font-family: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg);
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(196, 149, 106, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(139, 111, 92, 0.05) 0%, transparent 50%);
    color: var(--text);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 1.5rem 1rem 0;
    font-size: 16.5px;
}

.container {
    background: var(--card);
    width: 94%;
    max-width: 680px;
    padding: 1.5rem 2.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(61, 51, 49, 0.06), 0 1px 4px rgba(61, 51, 49, 0.04);
    border: 1px solid var(--border);
}

/* ===== Brand Compact ===== */
.brand-compact {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 0.6rem;
    margin-bottom: 0.6rem;
    border-bottom: 1px solid var(--border);
}

.brand-compact-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-icon-sm {
    font-size: 0.9rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-link-sm {
    font-size: 1.3rem;
    font-weight: 700;
    line-height: 1;
    color: var(--primary-dark);
    font-family: 'Noto Serif JP', serif;
    text-decoration: none;
}

.brand-link-sm .spark {
    background: linear-gradient(135deg, var(--accent), #d4a574, var(--gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-compact-right {
    text-align: right;
}

.brand-compact-title {
    display: block;
    font-family: 'Noto Serif JP', serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary-dark);
    letter-spacing: 0.04em;
}

.brand-compact-sub {
    font-size: 0.7rem;
    color: var(--secondary);
    letter-spacing: 0.02em;
}

/* ===== Steps ===== */
.steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 1rem;
}

.step {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    opacity: 0.4;
    transition: opacity 0.3s;
}

.step.active { opacity: 1; }
.step.done { opacity: 0.7; }

.step-num {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1.5px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--secondary);
    transition: all 0.3s;
}

.step.active .step-num {
    background: var(--primary-dark);
    color: white;
    border-color: var(--primary-dark);
}

.step.done .step-num {
    background: var(--success);
    color: white;
    border-color: var(--success);
}

.step-label {
    font-size: 0.8rem;
    color: var(--secondary);
    font-weight: 500;
}

.step.active .step-label { color: var(--primary-dark); font-weight: 600; }

.step-line {
    width: 30px;
    height: 1px;
    background: var(--border);
    margin: 0 0.6rem;
}

/* ===== Step Content ===== */
.step-content { display: none; }
.step-content.active { display: block; }

/* ===== Calendar ===== */
.calendar-section {
    margin-bottom: 1.5rem;
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.cal-nav {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: white;
    font-size: 1.4rem;
    color: var(--secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.cal-nav:hover {
    background: var(--bg);
    color: var(--text);
}

.cal-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary-dark);
    letter-spacing: 0.05em;
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    margin-bottom: 0.4rem;
}

.calendar-weekdays span {
    font-size: 0.75rem;
    color: var(--secondary);
    font-weight: 500;
    padding: 0.3rem 0;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px;
}

.cal-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.88rem;
    border-radius: 50%;
    cursor: default;
    color: var(--secondary);
    opacity: 0.35;
    transition: all 0.2s;
    border: none;
    background: none;
}

.cal-day.available {
    opacity: 1;
    color: var(--text);
    cursor: pointer;
    font-weight: 500;
}

.cal-day.available:hover {
    background: var(--bg);
}

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

.cal-day.today {
    position: relative;
}

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

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

.calendar-note {
    text-align: center;
    font-size: 0.78rem;
    color: var(--secondary);
    margin-top: 0.8rem;
    letter-spacing: 0.02em;
}

/* ===== Time Slots ===== */
.time-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.time-section.hidden { display: none; }

.time-heading {
    font-family: 'Noto Serif JP', serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 1rem;
    text-align: center;
}

.time-slots {
    display: flex;
    justify-content: center;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.time-slot {
    padding: 0.7rem 1.8rem;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    background: white;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
    cursor: pointer;
    transition: all 0.2s;
}

.time-slot:hover {
    border-color: var(--primary);
    background: #faf7f5;
}

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

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

/* ===== Buttons ===== */
.next-btn {
    display: block;
    width: 100%;
    margin-top: 1.5rem;
    padding: 0.85rem;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: white;
    background: var(--primary-dark);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 0.05em;
}

.next-btn:hover:not(:disabled) { background: var(--primary); }
.next-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.next-btn.hidden { display: none; }

.back-btn {
    padding: 0.85rem 2rem;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--secondary);
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.back-btn:hover { background: var(--bg); color: var(--text); }

.submit-btn {
    flex: 1;
    padding: 0.85rem 2rem;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: white;
    background: var(--primary-dark);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 0.05em;
}

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

.form-actions {
    display: flex;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

/* ===== Form ===== */
.selected-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 1rem;
    background: var(--bg);
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.summary-label {
    font-size: 0.82rem;
    color: var(--secondary);
}

.summary-value {
    font-family: 'Noto Serif JP', serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary-dark);
}

.booking-form { }

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.4rem;
}

.required {
    color: var(--danger);
    font-size: 0.75rem;
}

.optional {
    color: var(--secondary);
    font-size: 0.72rem;
    font-weight: 400;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.7rem 0.9rem;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.92rem;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    background: white;
    color: var(--text);
    transition: border-color 0.2s;
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #c5bdb8;
}

.form-group textarea { resize: vertical; }

/* ===== Confirm ===== */
.confirm-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.confirm-heading {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--primary-dark);
    text-align: center;
    margin-bottom: 1.2rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--border);
}

.confirm-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.6rem 1.2rem;
    font-size: 0.9rem;
}

.confirm-list dt {
    color: var(--secondary);
    font-weight: 500;
    min-width: 90px;
}

.confirm-list dd {
    color: var(--text);
    font-weight: 500;
    word-break: break-all;
}

.confirm-note {
    margin-top: 1.2rem;
    padding-top: 0.8rem;
    border-top: 1px solid var(--border);
    font-size: 0.82rem;
    color: var(--secondary);
    text-align: center;
    letter-spacing: 0.02em;
}

/* ===== Done ===== */
.done-card {
    text-align: center;
    padding: 2rem 1rem;
}

.done-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--success);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.2rem;
}

.done-heading {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 0.8rem;
}

.done-text {
    font-size: 0.9rem;
    color: var(--secondary);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.done-summary {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background: var(--bg);
    border-radius: 8px;
    font-family: 'Noto Serif JP', serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
}

.back-home {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 0.88rem;
    color: var(--primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.back-home:hover { border-bottom-color: var(--primary); }

/* ===== Loading ===== */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(247, 244, 242, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 100;
    backdrop-filter: blur(4px);
}

.loading-overlay.hidden { display: none; }

.loading-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.9s linear infinite;
}

.loading-text {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--secondary);
    font-weight: 300;
}

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

/* ===== Cancel ===== */
.cancel-card {
    text-align: center;
    padding: 2rem 1rem;
}

.cancel-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--danger);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.2rem;
}

.cancel-heading {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 0.8rem;
}

.cancel-details {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background: #fef2f2;
    border-radius: 8px;
    font-family: 'Noto Serif JP', serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.cancel-text {
    font-size: 0.88rem;
    color: var(--secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.cancel-submit-btn {
    padding: 0.85rem 2rem;
    background: #9b3a3a;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.cancel-submit-btn:hover {
    background: #832e2e;
}

/* ===== Reschedule Banner ===== */
.reschedule-banner {
    background: #fff7ed;
    border: 1px solid #f5d0a9;
    border-radius: 8px;
    padding: 0.8rem 1.2rem;
    font-size: 0.88rem;
    color: #92610c;
    text-align: center;
    margin-bottom: 1.2rem;
    font-weight: 500;
}

.reschedule-banner.hidden { display: none; }

/* ===== Footer ===== */
.footer {
    width: 100%;
    text-align: center;
    margin-top: auto;
    padding: 1.5rem 1rem;
    font-size: 0.88rem;
    color: var(--primary-dark);
    font-family: 'Noto Serif JP', serif;
    letter-spacing: 0.15em;
    font-weight: 500;
}

.footer-brand { font-family: 'Noto Serif JP', serif; font-weight: 700; }

.footer-spark {
    background: linear-gradient(135deg, var(--accent), #d4a76a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
    body { padding: 0.5rem 0.3rem 0; }
    .container { padding: 1rem 0.8rem; max-width: 100%; border-radius: 10px; }
    .brand-compact { margin-bottom: 0.4rem; padding-bottom: 0.4rem; }
    .brand-link-sm { font-size: 1.1rem; }
    .brand-compact-title { font-size: 0.82rem; }
    .brand-compact-sub { font-size: 0.62rem; }
    .steps { gap: 0; margin-bottom: 0.8rem; }
    .step-num { width: 24px; height: 24px; font-size: 0.72rem; }
    .step-label { font-size: 0.65rem; }
    .step-line { width: 12px; margin: 0 0.2rem; }
    .calendar-section { margin-bottom: 0.8rem; }
    .calendar-header { margin-bottom: 0.5rem; }
    .calendar-weekdays span { font-size: 0.7rem; }
    .cal-day { font-size: 0.78rem; width: 34px; height: 34px; }
    .cal-nav { font-size: 1.2rem; width: 30px; height: 30px; }
    .cal-title { font-size: 0.95rem; }
    .calendar-note { font-size: 0.72rem; margin-top: 0.3rem; }
    .time-slot { padding: 0.5rem 1rem; font-size: 0.85rem; }
    .time-heading { font-size: 0.88rem; }
    .next-btn { font-size: 0.88rem; padding: 0.7rem 1.2rem; }
    .selected-summary { padding: 0.5rem 0.7rem; flex-direction: column; gap: 0.15rem; }
    .summary-label { font-size: 0.75rem; }
    .summary-value { font-size: 0.88rem; }
    .booking-form label { font-size: 0.82rem; }
    .booking-form input,
    .booking-form textarea { font-size: 0.88rem; padding: 0.6rem 0.7rem; }
    .form-group { margin-bottom: 0.8rem; }
    .confirm-card { padding: 0.8rem; }
    .confirm-heading { font-size: 0.95rem; }
    .confirm-list { grid-template-columns: 1fr; gap: 0.25rem; }
    .confirm-list dt { min-width: auto; font-size: 0.75rem; margin-top: 0.25rem; }
    .confirm-list dd { font-size: 0.85rem; }
    .confirm-note { font-size: 0.75rem; }
    .form-actions { flex-direction: column-reverse; gap: 0.5rem; }
    .back-btn, .submit-btn, .next-btn { width: 100%; text-align: center; }
    .done-heading { font-size: 1.05rem; }
    .done-text { font-size: 0.8rem; }
    .done-summary { font-size: 0.85rem; padding: 0.4rem 0.8rem; }
    .cancel-heading { font-size: 1.05rem; }
    .cancel-card .form-actions { flex-direction: row; }
    .reschedule-banner { font-size: 0.78rem; padding: 0.5rem 0.7rem; }
    .loading-text { font-size: 0.78rem; }
    .footer { padding: 1rem 0.5rem; font-size: 0.78rem; }
}

@media (max-width: 380px) {
    .container { padding: 0.8rem 0.6rem; }
    .brand-link-sm { font-size: 1rem; }
    .brand-compact-title { font-size: 0.75rem; }
    .brand-compact-sub { font-size: 0.58rem; }
    .cal-day { width: 30px; height: 30px; font-size: 0.72rem; }
    .step-num { width: 22px; height: 22px; font-size: 0.65rem; }
    .step-label { font-size: 0.58rem; }
    .step-line { width: 8px; }
}