*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

:root {
  --black:   #0a0a0a;
  --gray-1:  #141414;
  --gray-2:  #1e1e1e;
  --gray-3:  #2a2a2a;
  --gray-4:  #3a3a3a;
  --gray-5:  #555;
  --gray-6:  #888;
  --gray-7:  #b0b0b0;
  --gray-8:  #d4d4d4;
  --gray-9:  #ebebeb;
  --white:   #ffffff;
  --green:   #4ade80;
  --green-dim: rgba(74,222,128,0.12);
  --green-border: rgba(74,222,128,0.3);
  --amber:   #f0a500;

  --accent:  #ffffff;
  --accent-dim: rgba(255,255,255,0.08);
  --accent-border: rgba(255,255,255,0.14);

  --r-sm:  10px;
  --r-md:  16px;
  --r-lg:  22px;

  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
}

html { background: var(--black); }

body {
  font-family: var(--font);
  background: var(--black);
  color: var(--white);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ─── Pages ──────────────────────────────────────────────── */
.page { display: none; min-height: 100vh; padding-bottom: 110px; }
.page.active { display: block; }

/* ─── Header ─────────────────────────────────────────────── */
.header {
  padding: 20px 20px 16px;
  padding-top: max(20px, env(safe-area-inset-top));
  background: var(--black);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--gray-3);
}
.header-back {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--gray-7);
  font-size: 14px;
  letter-spacing: 0.02em;
  cursor: pointer;
  width: fit-content;
  margin-bottom: 10px;
  transition: color 0.2s;
}
.header-back:active { color: var(--white); }
.header h1 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.8px;
  color: var(--white);
}
.header p {
  font-size: 13px;
  color: var(--gray-6);
  margin-top: 3px;
}

/* ─── Profile / Hero ──────────────────────────────────────── */
.profile-section {
  padding: 32px 20px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 100%);
  border-bottom: 1px solid var(--gray-3);
  margin-bottom: 4px;
}
.profile-section::before {
  content: '';
  position: absolute;
  top: -80px; left: 50%;
  transform: translateX(-50%);
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 65%);
  pointer-events: none;
}
.profile-avatar {
  width: 84px; height: 84px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: var(--gray-2);
  border: 1.5px solid var(--gray-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  position: relative;
  box-shadow: 0 0 0 4px rgba(255,255,255,0.04), 0 8px 24px rgba(0,0,0,0.4);
}
.profile-avatar img {
  width: 84px; height: 84px;
  border-radius: 50%;
  object-fit: cover;
}
.profile-name {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.8px;
  color: var(--white);
}
.profile-bio {
  font-size: 12px;
  color: var(--gray-5);
  margin-top: 6px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}
.profile-location {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--gray-6);
  background: var(--gray-2);
  border: 1px solid var(--gray-3);
  padding: 5px 12px;
  border-radius: 20px;
}

/* ─── Tab Bar ─────────────────────────────────────────────── */
.tab-bar {
  display: flex;
  padding: 16px 16px 12px;
  gap: 8px;
  background: var(--black);
  position: sticky;
  top: 0;
  z-index: 50;
}
.tab-btn {
  flex: 1;
  padding: 10px 16px;
  border-radius: 20px;
  border: 1px solid var(--gray-3);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
  background: transparent;
  color: var(--gray-5);
}
.tab-btn.active {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}
.tab-btn:not(.active):active { background: var(--gray-2); color: var(--gray-7); }

/* ─── Section Label ───────────────────────────────────────── */
.section-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--gray-5);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0 20px 10px;
}

/* ─── Service Cards ───────────────────────────────────────── */
.services-list {
  padding: 4px 16px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.service-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--gray-1);
  padding: 16px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
  border-radius: var(--r-md);
  border: 1.5px solid var(--gray-3);
}
.service-card:active { transform: scale(0.985); background: var(--gray-2); }
.service-card.selected {
  background: var(--green-dim);
  border-color: var(--green-border);
}
.service-card.selected .service-name { color: var(--white); }
.service-card.selected .service-duration { color: rgba(74,222,128,0.7); }
.service-card.selected .service-price-value { color: var(--green); }
.service-card.selected .service-price-duration { color: rgba(74,222,128,0.6); }

.service-check {
  width: 24px; height: 24px;
  border-radius: 50%;
  border: 1.5px solid var(--gray-4);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  background: transparent;
}
.service-card.selected .service-check {
  background: var(--green);
  border-color: var(--green);
}
.service-check-icon { display: none; }
.service-card.selected .service-check-icon { display: block; color: var(--black); }

.service-info { flex: 1; min-width: 0; }
.service-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: -0.1px;
}
.service-desc {
  font-size: 12px;
  color: var(--gray-5);
  margin-top: 2px;
  line-height: 1.4;
}
.service-duration {
  font-size: 12px;
  color: var(--gray-5);
  margin-top: 3px;
}
.service-price { text-align: right; flex-shrink: 0; }
.service-price-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--gray-8);
  letter-spacing: -0.3px;
}
.service-price-duration {
  font-size: 12px;
  color: var(--gray-5);
  margin-top: 3px;
}

/* ─── Bottom Action Bar ───────────────────────────────────── */
.bottom-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  padding: 12px 16px;
  padding-bottom: max(24px, env(safe-area-inset-bottom, 24px));
  background: linear-gradient(to top, var(--black) 60%, transparent);
  z-index: 200;
}
.btn-primary {
  width: 100%;
  padding: 17px;
  background: var(--white);
  color: var(--black);
  border: none;
  border-radius: var(--r-md);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.12s;
  letter-spacing: -0.2px;
}
.btn-primary:active { opacity: 0.88; transform: scale(0.98); }
.btn-primary:disabled {
  background: var(--gray-2);
  color: var(--gray-5);
  cursor: not-allowed;
  transform: none;
  border: 1px solid var(--gray-3);
}
.btn-secondary {
  width: 100%;
  padding: 14px;
  background: transparent;
  color: var(--gray-7);
  border: 1px solid var(--gray-3);
  border-radius: var(--r-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-secondary:active { background: var(--gray-2); color: var(--white); }

/* ─── Calendar ────────────────────────────────────────────── */
.calendar-wrap {
  background: var(--gray-1);
  border: 1px solid var(--gray-3);
  border-radius: var(--r-lg);
  margin: 0 16px;
  padding: 20px 16px;
}
.cal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.cal-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--white);
}
.cal-nav {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--gray-3);
  background: var(--gray-2);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-7);
  font-size: 18px;
  transition: all 0.15s;
}
.cal-nav:active { background: var(--gray-3); color: var(--white); }
.cal-nav:disabled { color: var(--gray-4); cursor: not-allowed; opacity: 0.4; }
.cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  margin-bottom: 6px;
}
.cal-weekday {
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--gray-5);
  padding: 4px 0;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.cal-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
}
.cal-day {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
  background: transparent;
  color: var(--gray-5);
  position: relative;
  gap: 2px;
}
.cal-day.empty { pointer-events: none; }
.cal-day.past, .cal-day.unavailable { color: var(--gray-4); cursor: not-allowed; }
.cal-day.available {
  color: var(--white);
  font-weight: 700;
}
.cal-day.available::after {
  content: '';
  position: absolute;
  bottom: 5px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 4px;
  background: var(--green);
  border-radius: 50%;
}
.cal-day.available:active { background: var(--gray-3); }
.cal-day.today { color: var(--amber); font-weight: 700; }
.cal-day.today::after { background: var(--amber); }
.cal-day.selected {
  background: var(--white) !important;
  color: var(--black) !important;
  font-weight: 800;
}
.cal-day.selected::after { display: none; }
.cal-no-slots {
  text-align: center;
  padding: 28px 20px 16px;
}
.cal-no-slots .no-slots-icon {
  font-size: 36px;
  margin-bottom: 12px;
  opacity: 0.4;
}
.cal-no-slots .no-slots-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
  letter-spacing: -0.3px;
}
.cal-no-slots .no-slots-sub {
  font-size: 13px;
  color: var(--gray-5);
  line-height: 1.6;
}

/* ─── Slots section header ────────────────────────────────── */
.slots-date-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px 12px;
}
.slots-date-pill {
  font-size: 13px;
  font-weight: 700;
  color: var(--white);
  background: var(--gray-2);
  border: 1px solid var(--gray-3);
  padding: 6px 14px;
  border-radius: 20px;
  letter-spacing: -0.2px;
}

/* ─── Time Slots ──────────────────────────────────────────── */
.slots-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 0 16px;
}
.slot-btn {
  padding: 16px 8px;
  background: var(--gray-1);
  border: 1.5px solid var(--gray-3);
  border-radius: var(--r-sm);
  font-size: 15px;
  font-weight: 700;
  color: var(--gray-7);
  cursor: pointer;
  text-align: center;
  transition: all 0.15s;
  letter-spacing: -0.2px;
}
.slot-btn:active { background: var(--gray-2); color: var(--white); }
.slot-btn.selected {
  background: var(--white);
  border-color: var(--white);
  color: var(--black);
  box-shadow: 0 4px 12px rgba(255,255,255,0.15);
}

/* ─── Mini booking summary strip ─────────────────────────── */
.booking-strip {
  margin: 0 16px;
  background: var(--gray-1);
  border: 1px solid var(--gray-3);
  border-radius: var(--r-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.booking-strip-item {
  font-size: 12px;
  color: var(--gray-6);
  display: flex;
  align-items: center;
  gap: 5px;
}
.booking-strip-item strong { color: var(--white); font-weight: 600; }
.booking-strip-sep { color: var(--gray-4); font-size: 12px; }

/* ─── Summary / Review ────────────────────────────────────── */
.summary-card {
  background: var(--gray-1);
  border: 1px solid var(--gray-3);
  border-radius: var(--r-lg);
  margin: 0 16px;
  overflow: hidden;
}
.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  border-bottom: 1px solid var(--gray-3);
  font-size: 15px;
}
.summary-row:last-child { border-bottom: none; }
.summary-row-label { color: var(--gray-6); font-size: 13px; }
.summary-row-value { font-weight: 600; text-align: right; max-width: 65%; color: var(--white); }
.summary-total { font-size: 18px !important; font-weight: 800 !important; letter-spacing: -0.4px; }
.summary-total.summary-row-label { color: var(--gray-7) !important; font-size: 13px !important; }

.prepayment-box {
  margin: 12px 16px 0;
  background: rgba(240,165,0,0.08);
  border: 1px solid rgba(240,165,0,0.2);
  border-radius: var(--r-md);
  padding: 14px 16px;
}
.prepayment-box p { font-size: 13px; color: var(--gray-7); line-height: 1.6; }
.prepayment-box strong { color: var(--amber); font-weight: 700; }

/* ─── Contact form card ───────────────────────────────────── */
.contact-card {
  margin: 12px 16px 0;
  background: var(--gray-1);
  border: 1px solid var(--gray-3);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.contact-card-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--gray-5);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 14px 20px 0;
}
.contact-field {
  padding: 10px 16px 14px;
}
.contact-field label {
  font-size: 11px;
  font-weight: 700;
  color: var(--gray-5);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 6px;
}
.contact-field + .contact-field {
  border-top: 1px solid var(--gray-3);
  padding-top: 10px;
}

/* ─── Payment Page ────────────────────────────────────────── */
.payment-card {
  background: var(--gray-1);
  border: 1px solid var(--gray-3);
  border-radius: var(--r-lg);
  margin: 0 16px;
  overflow: hidden;
}
.payment-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-3);
}
.payment-row:last-child { border-bottom: none; }
.payment-label { font-size: 12px; color: var(--gray-5); text-transform: uppercase; letter-spacing: 0.08em; }
.payment-value { font-size: 16px; font-weight: 700; color: var(--white); font-family: 'SF Mono', 'Fira Mono', monospace; }
.payment-amount {
  font-size: 52px;
  font-weight: 800;
  color: var(--white);
  text-align: center;
  letter-spacing: -2px;
  padding: 32px 20px 8px;
}
.copy-btn {
  background: var(--gray-3);
  border: none;
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
  color: var(--gray-7);
  cursor: pointer;
  margin-left: 10px;
  letter-spacing: 0.02em;
  transition: all 0.15s;
}
.copy-btn:active { background: var(--gray-4); color: var(--white); }

/* ─── Appointment Cards ───────────────────────────────────── */
.appointments-list {
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.appt-card {
  background: var(--gray-1);
  border: 1px solid var(--gray-3);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.appt-card-top {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
}
.appt-card-date-block {
  background: var(--gray-2);
  border-radius: 10px;
  padding: 10px 12px;
  text-align: center;
  flex-shrink: 0;
  min-width: 52px;
}
.appt-card-day { font-size: 22px; font-weight: 800; letter-spacing: -1px; color: var(--white); line-height: 1; }
.appt-card-mon { font-size: 11px; font-weight: 700; color: var(--gray-5); text-transform: uppercase; letter-spacing: 0.06em; margin-top: 2px; }
.appt-card-info { flex: 1; min-width: 0; }
.appt-time { font-size: 16px; font-weight: 700; color: var(--white); letter-spacing: -0.3px; }
.appt-services { font-size: 13px; color: var(--gray-6); margin-top: 3px; line-height: 1.4; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.appt-card-right { text-align: right; flex-shrink: 0; }
.appt-price { font-size: 16px; font-weight: 800; letter-spacing: -0.5px; color: var(--white); }
.appt-status {
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 20px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid var(--gray-3);
  color: var(--gray-6);
  background: var(--gray-2);
  display: inline-block;
  margin-top: 4px;
}
.appt-status.pending { color: var(--amber); border-color: rgba(240,165,0,0.3); background: rgba(240,165,0,0.08); }
.appt-status.confirmed { color: var(--green); border-color: var(--green-border); background: var(--green-dim); }
.appt-status.cancelled { color: var(--gray-5); }
.appt-card-footer {
  border-top: 1px solid var(--gray-3);
  padding: 10px 16px;
  display: flex;
  gap: 8px;
  align-items: center;
}
.appt-prepayment { font-size: 12px; color: var(--amber); flex: 1; }
.appt-cancel-btn {
  padding: 8px 16px;
  background: transparent;
  color: var(--gray-6);
  border: 1px solid var(--gray-3);
  border-radius: var(--r-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
  flex-shrink: 0;
}
.appt-cancel-btn:active { background: rgba(229,57,53,0.1); border-color: rgba(229,57,53,0.3); color: #e57373; }

/* ─── Empty State ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}
.empty-state-icon {
  font-size: 48px;
  margin-bottom: 18px;
  opacity: 0.3;
}
.empty-state h3 { font-size: 20px; font-weight: 700; letter-spacing: -0.4px; margin-bottom: 8px; }
.empty-state p { font-size: 14px; color: var(--gray-6); line-height: 1.6; }

/* ─── Success Screen ──────────────────────────────────────── */
.success-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 40px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.success-screen.confirmed {
  background: radial-gradient(ellipse at 50% -10%, rgba(74,222,128,0.2) 0%, transparent 65%),
              var(--black);
}
.success-icon {
  width: 88px; height: 88px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 40px;
  margin-bottom: 28px;
  animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  background: var(--gray-2);
  border: 1px solid var(--gray-3);
}
.success-screen.confirmed .success-icon {
  background: rgba(74,222,128,0.12);
  border: 1.5px solid rgba(74,222,128,0.35);
  color: var(--green);
  box-shadow: 0 0 40px rgba(74,222,128,0.15);
}
@keyframes popIn {
  from { transform: scale(0.4); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}
.success-screen.confirmed h2 { color: var(--green); }
.success-screen h2 {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 10px;
}
.success-screen p { font-size: 14px; color: var(--gray-6); line-height: 1.7; max-width: 280px; }
.success-details {
  background: var(--gray-1);
  border: 1px solid var(--gray-3);
  border-radius: var(--r-lg);
  width: 100%;
  margin: 24px 0 20px;
  overflow: hidden;
}
.success-screen.confirmed .success-details {
  background: rgba(74,222,128,0.05);
  border-color: rgba(74,222,128,0.18);
}

/* ─── Loading ─────────────────────────────────────────────── */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px;
  gap: 14px;
  color: var(--gray-5);
  font-size: 14px;
}
.spinner {
  width: 26px; height: 26px;
  border: 2px solid var(--gray-3);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Toast ───────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 110px; left: 50%;
  transform: translateX(-50%) translateY(16px);
  background: var(--gray-2);
  color: var(--white);
  border: 1px solid var(--gray-3);
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  opacity: 0;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 999;
  white-space: nowrap;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ─── Divider ─────────────────────────────────────────────── */
.divider { height: 1px; background: var(--gray-3); margin: 0 16px; }

/* ─── Spacing helpers ─────────────────────────────────────── */
.mt-4  { margin-top: 4px;  }
.mt-8  { margin-top: 8px;  }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.mt-24 { margin-top: 24px; }
.mt-28 { margin-top: 28px; }
.px-16 { padding: 0 16px;  }
.note  { font-size: 13px; color: var(--gray-6); line-height: 1.6; padding: 14px 20px; }

.form-input {
  width: 100%;
  background: var(--gray-2);
  border: 1.5px solid var(--gray-3);
  border-radius: var(--r-sm);
  padding: 14px 16px;
  font-size: 15px;
  color: var(--white);
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s;
  display: block;
}
.form-input:focus { border-color: var(--gray-5); }
.form-input::placeholder { color: var(--gray-4); }

/* ─── Admin panel shared ──────────────────────────────────── */
.section-card {
  background: var(--gray-1);
  border: 1px solid var(--gray-3);
  border-radius: var(--r-lg);
  margin: 0 16px;
  overflow: hidden;
}