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

:root {
  --primary:     #2563eb;
  --primary-h:   #1d4ed8;
  --primary-l:   #eff6ff;
  --success:     #16a34a;
  --warning:     #d97706;
  --danger:      #dc2626;
  --info:        #0891b2;
  --gray-50:     #f9fafb;
  --gray-100:    #f3f4f6;
  --gray-200:    #e5e7eb;
  --gray-300:    #d1d5db;
  --gray-400:    #9ca3af;
  --gray-500:    #6b7280;
  --gray-700:    #374151;
  --gray-900:    #111827;
  --radius:      12px;
  --radius-sm:   8px;
  --shadow:      0 1px 3px rgba(0,0,0,.07), 0 4px 16px rgba(0,0,0,.05);
  --nav-h-mob:   64px;
  --nav-h-desk:  60px;
}

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--gray-50);
  color: var(--gray-900);
  min-height: 100dvh;
  padding-top: 40px;
  padding-bottom: calc(var(--nav-h-mob) + env(safe-area-inset-bottom));
}

/* ─────────────────────────────────────────────────────────────
   NAVBAR
───────────────────────────────────────────────────────────── */
.navbar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 100;
  height: calc(var(--nav-h-mob) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: #fff;
  border-top: 1px solid var(--gray-200);
  display: flex; align-items: center; justify-content: space-around;
  box-shadow: 0 -1px 12px rgba(0,0,0,.06);
}
.nav-brand { display: none; }
.nav-user  {
  display: flex; align-items: center; gap: 0;
  position: fixed; top: 0; left: 0; right: 0; z-index: 101;
  height: 44px; padding: 0 12px;
  background: #fff; border-bottom: 1px solid var(--gray-200);
  justify-content: flex-end;
}
.nav-user a {
  font-size: .75rem; font-weight: 600;
  padding: 6px 10px; border-radius: 8px;
  text-decoration: none; color: var(--gray-700);
  white-space: nowrap;
}
.nav-links { display: flex; width: 100%; justify-content: space-around; }
.nav-link  {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  text-decoration: none; color: var(--gray-400); font-size: .68rem;
  font-weight: 500; padding: 6px 12px; border-radius: var(--radius-sm);
  transition: color .15s;
}
.nav-link.active { color: var(--primary); }
.nav-link-icon   { font-size: 1.25rem; }

@media (min-width: 768px) {
  body { padding-bottom: 0; padding-top: var(--nav-h-desk); }
  .navbar {
    bottom: auto; top: 0;
    height: var(--nav-h-desk); padding-bottom: 0;
    border-top: none; border-bottom: 1px solid var(--gray-200);
    justify-content: space-between; padding: 0 24px;
    box-shadow: 0 1px 8px rgba(0,0,0,.06);
  }
  .nav-brand {
    display: flex; align-items: center; gap: 8px;
    font-weight: 800; font-size: 1rem; color: var(--gray-900);
    text-decoration: none;
  }
  .nav-links { width: auto; gap: 2px; }
  .nav-link  {
    flex-direction: row; gap: 6px; font-size: .875rem;
    padding: 7px 14px;
  }
  .nav-link-icon { font-size: 1rem; }
  .nav-user {
    display: flex; align-items: center; gap: 12px;
    font-size: .8rem;
    position: static; height: auto;
    border-bottom: none; background: transparent;
    padding: 0;
  }
  .nav-username {
    color: var(--gray-500); font-weight: 500;
    text-decoration: none; cursor: pointer;
  }
  .nav-username:hover { color: var(--primary); }
  .nav-sheet-link {
    color: var(--success); font-weight: 600;
    text-decoration: none; font-size: .8rem;
    padding: 5px 10px; border-radius: 6px;
    border: 1.5px solid #86efac;
    transition: background .15s;
  }
  .nav-sheet-link:hover { background: #f0fdf4; }
  .nav-logout   {
    color: var(--danger); text-decoration: none; font-weight: 600;
    padding: 6px 12px; border-radius: 6px;
    transition: background .15s;
  }
  .nav-logout:hover { background: #fef2f2; }
}

/* ─────────────────────────────────────────────────────────────
   LAYOUT
───────────────────────────────────────────────────────────── */
.main-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 20px 16px;
}

/* ─────────────────────────────────────────────────────────────
   ALERTS / FLASH
───────────────────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  font-weight: 500;
  margin-bottom: 12px;
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 8px;
}
.alert-error   { background: #fef2f2; color: #991b1b; border: 1px solid #fca5a5; }
.alert-success { background: #f0fdf4; color: #166534; border: 1px solid #86efac; }
.alert-warning { background: #fffbeb; color: #92400e; border: 1px solid #fcd34d; }
.alert-info    { background: #ecfeff; color: #155e75; border: 1px solid #67e8f9; }
.alert-close   {
  background: none; border: none; cursor: pointer; font-size: 1.1rem;
  opacity: .5; line-height: 1; padding: 0; flex-shrink: 0;
}

/* ─────────────────────────────────────────────────────────────
   CARDS
───────────────────────────────────────────────────────────── */
.card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
}
.page-header  { margin-bottom: 20px; }
.page-title   { font-size: 1.35rem; font-weight: 800; }
.page-sub     { font-size: .875rem; color: var(--gray-500); margin-top: 4px; }

/* ─────────────────────────────────────────────────────────────
   AUTH PAGES
───────────────────────────────────────────────────────────── */
.auth-body {
  background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 100%);
  display: flex; align-items: center; justify-content: center;
  min-height: 100dvh; padding: 20px 16px;
  padding-bottom: 20px; /* override body padding */
}
.auth-container { width: 100%; max-width: 420px; }
.auth-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 32px rgba(0,0,0,.1);
  padding: 32px 28px;
}
.auth-card form { display: flex; flex-direction: column; gap: 16px; }
.auth-brand      { text-align: center; margin-bottom: 28px; }
.auth-brand-icon { font-size: 2.5rem; display: block; }
.auth-brand-name { font-size: 1.4rem; font-weight: 800; margin-top: 8px; }
.auth-brand-sub  { color: var(--gray-500); font-size: .875rem; margin-top: 4px; }
.auth-footer     { text-align: center; font-size: .875rem; color: var(--gray-500); margin-top: 20px; }
.auth-link       { color: var(--primary); font-weight: 600; text-decoration: none; }
.auth-link:hover { text-decoration: underline; }
.info-box {
  background: var(--primary-l);
  color: #1e40af;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: .8rem;
  font-weight: 500;
  margin-bottom: 16px;
}
.input-eye-wrap { position: relative; }
.input-eye-wrap .form-input { padding-right: 44px; }
.eye-btn {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; font-size: 1rem;
  opacity: .5; padding: 0;
}
.eye-btn:hover { opacity: 1; }
.required { color: var(--danger); margin-left: 2px; }

/* ─────────────────────────────────────────────────────────────
   FORM ELEMENTS
───────────────────────────────────────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.form-group        { display: flex; flex-direction: column; gap: 4px; }
.form-group--full  { grid-column: 1 / -1; }
.form-card-header  { margin-bottom: 16px; }
.form-card-title   { font-size: 1.05rem; font-weight: 700; }
.form-card-sub     { font-size: .8rem; color: var(--gray-500); margin-top: 2px; }

.form-label {
  font-size: .78rem; font-weight: 600;
  color: var(--gray-700); letter-spacing: .02em;
}
.form-input {
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: .9rem;
  color: var(--gray-900);
  background: var(--gray-50);
  width: 100%;
  -webkit-appearance: none;
  transition: border-color .15s, box-shadow .15s;
}
.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
  background: #fff;
}
.form-textarea { resize: vertical; min-height: 72px; }

.form-actions {
  display: flex; gap: 10px;
  margin-top: 20px; padding-top: 16px;
  border-top: 1px solid var(--gray-100);
}

/* ─────────────────────────────────────────────────────────────
   BUTTONS
───────────────────────────────────────────────────────────── */
.btn {
  flex: 1; padding: 12px 16px;
  border: none; border-radius: var(--radius-sm);
  font-size: .9rem; font-weight: 600;
  cursor: pointer;
  transition: filter .15s, transform .1s;
  text-align: center;
}
.btn:active { transform: scale(.97); }
.btn-block  { width: 100%; flex: none; }
.btn-primary   { background: var(--primary); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-secondary { background: var(--gray-100); color: var(--gray-700); }
.btn-delete { background: none; border: none; cursor: pointer; font-size: 1rem; padding: 0.2rem 0.4rem; border-radius: 4px; opacity: 0.6; transition: opacity .2s; }
.btn-delete:hover { opacity: 1; background: #fee2e2; }
.btn-success   { background: var(--success); color: #fff; }
.btn-danger    { background: var(--danger);  color: #fff; }
.btn-outline   {
  background: none; border: 1.5px solid var(--gray-300);
  color: var(--gray-700); flex: none; padding: 6px 14px;
}
.btn-sm { padding: 6px 14px; font-size: .8rem; flex: none; }

/* ─────────────────────────────────────────────────────────────
   VOICE RECORDER
───────────────────────────────────────────────────────────── */
.voice-card  { text-align: center; padding: 32px 20px; }
.voice-status {
  font-size: .78rem; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; color: var(--gray-400); margin-bottom: 20px;
}
.btn-mic {
  width: 88px; height: 88px; border-radius: 50%; border: none;
  background: linear-gradient(135deg, var(--primary), var(--primary-h));
  box-shadow: 0 4px 20px rgba(37,99,235,.3);
  cursor: pointer; display: flex; align-items: center;
  justify-content: center; margin: 0 auto 16px;
  font-size: 2rem;
  transition: transform .15s, box-shadow .15s;
}
.btn-mic:active  { transform: scale(.93); }
.btn-mic.recording {
  background: linear-gradient(135deg, var(--danger), #b91c1c);
  box-shadow: 0 4px 20px rgba(220,38,38,.4);
  animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 4px 20px rgba(220,38,38,.35); }
  50%      { box-shadow: 0 4px 36px rgba(220,38,38,.65); }
}
.voice-hint { font-size: .875rem; color: var(--gray-400); }
.voice-transcript {
  margin-top: 16px; background: var(--gray-50); border-radius: var(--radius-sm);
  padding: 12px; font-size: .875rem; color: var(--gray-700); text-align: left;
  line-height: 1.55; border: 1px solid var(--gray-200);
}
.voice-processing {
  display: flex; align-items: center; justify-content: center;
  gap: 10px; margin-top: 16px; color: var(--primary);
  font-weight: 600; font-size: .875rem;
}
.spinner {
  width: 18px; height: 18px;
  border: 2px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .65s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─────────────────────────────────────────────────────────────
   TOAST
───────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: calc(var(--nav-h-mob) + env(safe-area-inset-bottom) + 12px);
  left: 50%; transform: translateX(-50%);
  background: var(--gray-900); color: #fff;
  padding: 11px 20px; border-radius: 24px;
  font-size: .875rem; font-weight: 500;
  opacity: 0; pointer-events: none;
  transition: opacity .25s; z-index: 300;
  white-space: nowrap; max-width: calc(100vw - 32px);
  overflow: hidden; text-overflow: ellipsis;
}
.toast.show    { opacity: 1; }
.toast.success { background: var(--success); }
.toast.error   { background: var(--danger);  }
@media (min-width: 768px) { .toast { bottom: 20px; } }

/* ─────────────────────────────────────────────────────────────
   STATS & CHARTS (Dashboard)
───────────────────────────────────────────────────────────── */
.stats-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 12px; margin-bottom: 16px;
}
.stat-card {
  background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px; text-align: center;
}
.stat-icon  { font-size: 1.5rem; margin-bottom: 6px; }
.stat-value { font-size: 1.05rem; font-weight: 800; color: var(--primary); line-height: 1.2; }
.stat-label { font-size: .7rem; color: var(--gray-500); margin-top: 4px; font-weight: 500; }

.chart-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; flex-wrap: wrap; gap: 8px;
}
.chart-title  { font-size: 1rem; font-weight: 700; }
.chart-wrapper { position: relative; height: 230px; }
.year-selector { display: flex; align-items: center; gap: 8px; }
.year-btn {
  width: 28px; height: 28px; border: 1.5px solid var(--gray-200);
  border-radius: 6px; background: #fff; cursor: pointer;
  font-size: .9rem; display: flex; align-items: center; justify-content: center;
  transition: border-color .15s;
}
.year-btn:hover { border-color: var(--primary); color: var(--primary); }
.year-display { font-weight: 700; font-size: .9rem; min-width: 52px; text-align: center; }

/* ─────────────────────────────────────────────────────────────
   CALENDAR
───────────────────────────────────────────────────────────── */
.calendar-legend {
  display: flex; gap: 16px; margin-bottom: 12px; flex-wrap: wrap;
}
.legend-item { display: flex; align-items: center; gap: 5px; font-size: .75rem; color: var(--gray-500); }
.legend-dot  { width: 9px; height: 9px; border-radius: 50%; }
.legend-booked { background: var(--primary); }
.legend-free   { background: var(--gray-200); }
.legend-today  { background: var(--warning); }

.calendar-grid {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 3px;
}
.cal-day-header {
  text-align: center; font-size: .65rem; font-weight: 700;
  color: var(--gray-400); padding: 4px 0; text-transform: uppercase;
}
.cal-day {
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  border-radius: 6px; font-size: .78rem; font-weight: 500;
  background: var(--gray-50); color: var(--gray-600);
}
.cal-day.empty  { background: transparent; }
.cal-day.booked { background: var(--primary); color: #fff; }
.cal-day.today  { background: var(--warning); color: #fff; font-weight: 800; }
.cal-day.past   { opacity: .4; }

/* ─────────────────────────────────────────────────────────────
   TABLE (List page)
───────────────────────────────────────────────────────────── */
.search-bar    { margin-top: 10px; }
.search-input  {
  width: 100%; padding: 10px 14px;
  border: 1.5px solid var(--gray-200); border-radius: 10px;
  font-size: .9rem; background: #fff; -webkit-appearance: none;
}
.search-input:focus { outline: none; border-color: var(--primary); }

.table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.booking-table {
  width: 100%; border-collapse: collapse;
  font-size: .78rem; white-space: nowrap;
}
.booking-table th {
  background: var(--gray-50); color: var(--gray-600);
  font-weight: 700; padding: 10px 12px; text-align: left;
  border-bottom: 2px solid var(--gray-200);
  font-size: .7rem; letter-spacing: .03em; text-transform: uppercase;
}
.booking-table td {
  padding: 10px 12px; border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
}
.booking-table tr:last-child td { border-bottom: none; }
.booking-table tr:hover td { background: var(--gray-50); }
.table-loading { text-align: center; padding: 32px; color: var(--gray-400); }

/* ─────────────────────────────────────────────────────────────
   ADMIN PAGE
───────────────────────────────────────────────────────────── */
.section-title {
  font-size: 1rem; font-weight: 700; margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 22px; height: 22px; padding: 0 7px;
  border-radius: 11px; font-size: .75rem; font-weight: 700;
}
.badge-warning { background: #fef3c7; color: #92400e; }

.user-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0; border-bottom: 1px solid var(--gray-100);
  gap: 12px; flex-wrap: wrap;
}
.user-row:last-child { border-bottom: none; }
.user-info    { display: flex; align-items: center; gap: 12px; }
.user-avatar  { font-size: 1.5rem; flex-shrink: 0; }
.user-name    { font-weight: 600; font-size: .9rem; }
.user-meta    { font-size: .78rem; color: var(--gray-500); margin-top: 2px; }
.user-date    { font-size: .72rem; color: var(--gray-400); margin-top: 1px; }
.user-actions { display: flex; gap: 8px; flex-shrink: 0; }
.empty-state  { color: var(--gray-400); font-size: .875rem; padding: 12px 0; }

/* ─────────────────────────────────────────────────────────────
   SCROLLBAR
───────────────────────────────────────────────────────────── */
::-webkit-scrollbar       { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 3px; }