/* ============================================================
   Salon SaaS – Main Stylesheet
   ============================================================ */

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

:root {
  --primary:    #6c5ce7;
  --primary-dk: #5a4bd1;
  --secondary:  #00b894;
  --danger:     #d63031;
  --warning:    #fdcb6e;
  --info:       #0984e3;
  --light:      #f8f9fa;
  --dark:       #2d3436;
  --muted:      #636e72;
  --border:     #dfe6e9;
  --sidebar-w:  250px;
  --header-h:   60px;
  --radius:     8px;
  --shadow:     0 2px 8px rgba(0,0,0,.1);
}

html { font-size: 15px; }

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: #f1f2f6;
  color: var(--dark);
  line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

ul { list-style: none; }

/* ---------- Layout ---------- */
.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar {
  width: var(--sidebar-w);
  background: #2c2c54;
  color: #fff;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  overflow-y: auto;
  transition: transform .25s ease;
  z-index: 100;
}

.sidebar-brand {
  padding: 1.25rem 1.5rem;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: .5px;
  border-bottom: 1px solid rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  gap: .5rem;
}

.sidebar-brand span { color: var(--secondary); }

.sidebar-nav { padding: 1rem 0; flex: 1; }

.nav-section {
  padding: .4rem 1.5rem .2rem;
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255,255,255,.4);
  margin-top: .75rem;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .65rem 1.5rem;
  color: rgba(255,255,255,.75);
  font-size: .9rem;
  transition: background .15s, color .15s;
  border-left: 3px solid transparent;
}

.nav-item a:hover,
.nav-item a.active {
  background: rgba(255,255,255,.08);
  color: #fff;
  border-left-color: var(--secondary);
  text-decoration: none;
}

.nav-item a .icon { font-size: 1rem; min-width: 20px; text-align: center; }

.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: .8rem;
  color: rgba(255,255,255,.5);
}

/* ---------- Main Content ---------- */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ---------- Top Header ---------- */
.top-header {
  height: var(--header-h);
  background: #fff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.75rem;
  position: sticky;
  top: 0;
  z-index: 90;
  box-shadow: var(--shadow);
}

.top-header .page-title {
  font-size: 1.05rem;
  font-weight: 600;
}

.top-header .user-info {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: .875rem;
}

.top-header .user-info .role-badge {
  background: var(--primary);
  color: #fff;
  padding: .2rem .65rem;
  border-radius: 20px;
  font-size: .75rem;
  text-transform: capitalize;
}

/* ---------- Page Content ---------- */
.page-content {
  padding: 1.75rem;
  flex: 1;
}

/* ---------- Cards ---------- */
.card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.card-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header h2, .card-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.card-body { padding: 1.5rem; }

/* ---------- Stat Cards ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.stat-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.stat-card.green  { border-left-color: var(--secondary); }
.stat-card.red    { border-left-color: var(--danger); }
.stat-card.yellow { border-left-color: var(--warning); }
.stat-card.blue   { border-left-color: var(--info); }
.stat-card.orange { border-left-color: #e67e22; }

.stat-label { font-size: .78rem; text-transform: uppercase; color: var(--muted); letter-spacing: .5px; }
.stat-value { font-size: 1.75rem; font-weight: 700; line-height: 1.2; }
.stat-sub   { font-size: .78rem; color: var(--muted); }

/* ---------- Tables ---------- */
.table-responsive { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}

thead th {
  background: #f8f9fa;
  padding: .75rem 1rem;
  text-align: left;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--muted);
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}

tbody td {
  padding: .75rem 1rem;
  border-bottom: 1px solid #f1f2f6;
  vertical-align: middle;
}

tbody tr:hover { background: #fafbff; }

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: .2rem .6rem;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 600;
}

.badge-success   { background: #d4edda; color: #155724; }
.badge-warning   { background: #fff3cd; color: #856404; }
.badge-danger    { background: #f8d7da; color: #721c24; }
.badge-info      { background: #d1ecf1; color: #0c5460; }
.badge-secondary { background: #e2e3e5; color: #383d41; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .5rem 1.1rem;
  border: none;
  border-radius: var(--radius);
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  transition: opacity .15s, transform .1s;
  text-decoration: none;
}

.btn:hover { opacity: .88; text-decoration: none; }
.btn:active { transform: scale(.97); }

.btn-primary  { background: var(--primary);   color: #fff; }
.btn-success  { background: var(--secondary); color: #fff; }
.btn-danger   { background: var(--danger);    color: #fff; }
.btn-warning  { background: var(--warning);   color: var(--dark); }
.btn-info     { background: var(--info);      color: #fff; }
.btn-secondary{ background: #b2bec3;          color: #fff; }
.btn-sm       { padding: .3rem .75rem; font-size: .8rem; }
.btn-outline  { background: transparent; border: 1px solid currentColor; }

/* ---------- Forms ---------- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.form-group { display: flex; flex-direction: column; gap: .35rem; }

label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--dark);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="datetime-local"],
input[type="tel"],
select,
textarea {
  padding: .55rem .9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .9rem;
  font-family: inherit;
  transition: border-color .15s;
  width: 100%;
  background: #fff;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108,92,231,.15);
}

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

.form-actions {
  display: flex;
  gap: .75rem;
  margin-top: 1.25rem;
  align-items: center;
}

/* ---------- Alerts ---------- */
.alert {
  padding: .9rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
  font-size: .9rem;
  border-left: 4px solid transparent;
}

.alert-success { background: #d4edda; color: #155724; border-left-color: var(--secondary); }
.alert-error   { background: #f8d7da; color: #721c24; border-left-color: var(--danger); }
.alert-warning { background: #fff3cd; color: #856404; border-left-color: var(--warning); }
.alert-info    { background: #d1ecf1; color: #0c5460; border-left-color: var(--info); }

/* ---------- Auth Pages ---------- */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2c2c54, #6c5ce7);
  padding: 2rem;
}

.auth-card {
  background: #fff;
  border-radius: 12px;
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 8px 30px rgba(0,0,0,.2);
}

.auth-card h1 {
  font-size: 1.5rem;
  margin-bottom: .3rem;
  text-align: center;
}

.auth-card .subtitle {
  text-align: center;
  color: var(--muted);
  font-size: .875rem;
  margin-bottom: 1.75rem;
}

.auth-card .form-group { margin-bottom: 1rem; }

.auth-footer {
  text-align: center;
  margin-top: 1.25rem;
  font-size: .875rem;
  color: var(--muted);
}

/* ---------- Toolbar / Filter bar ---------- */
.toolbar {
  display: flex;
  gap: .75rem;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.toolbar .form-group { min-width: 160px; }

/* ---------- Low-stock alert strip ---------- */
.low-stock-strip {
  background: #fff3cd;
  border: 1px solid #ffc107;
  border-radius: var(--radius);
  padding: .75rem 1.25rem;
  font-size: .875rem;
  color: #856404;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}

/* ---------- Calendar day header ---------- */
.day-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.day-nav a.btn { padding: .35rem .9rem; }

.day-label {
  font-size: 1.1rem;
  font-weight: 600;
}

/* ---------- Chart placeholder ---------- */
.chart-container {
  position: relative;
  height: 260px;
}

/* ---------- Pagination ---------- */
.pagination {
  display: flex;
  gap: .35rem;
  margin-top: 1rem;
  justify-content: center;
}

.pagination a, .pagination span {
  padding: .35rem .75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .85rem;
  color: var(--primary);
}

.pagination .current {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ---------- Hamburger (mobile) ---------- */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.4rem;
  color: var(--dark);
}

/* ---------- Sidebar Overlay ---------- */
#sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 99;
  opacity: 0;
  transition: opacity .25s ease;
}

#sidebar-overlay.active {
  display: block;
  opacity: 1;
}

/* ---------- Responsive ---------- */

/* Sidebar overlay mobile */
#sidebar-overlay.active {
  display: block !important;
}

/* Tablet & below (768px) */
@media (max-width: 768px) {
  /* Sidebar becomes slide-in drawer */
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  
  /* Main content takes full width */
  .main-content {
    margin-left: 0;
  }
  
  /* Show hamburger button */
  .hamburger { 
    display: block; 
  }
  
  /* Stats: 2 columns */
  .stat-grid { 
    grid-template-columns: 1fr 1fr; 
  }
  
  /* Top header: smaller padding, wrap user info if needed */
  .top-header {
    padding: 0 1rem;
    flex-wrap: wrap;
    gap: .5rem;
  }
  
  .top-header .user-info {
    gap: .5rem;
    font-size: .8rem;
  }
  
  /* Card headers: allow wrapping */
  .card-header {
    flex-wrap: wrap;
    gap: .75rem;
    padding: .875rem 1rem;
  }
  
  /* Tables: smaller text, tighter padding */
  table {
    font-size: .8rem;
  }
  
  thead th,
  tbody td {
    padding: .5rem .65rem;
  }
  
  /* Buttons: smaller on mobile */
  .btn {
    font-size: .8rem;
    padding: .4rem .85rem;
  }
  
  .btn-sm {
    font-size: .75rem;
    padding: .25rem .6rem;
  }
  
  /* Form actions: wrap if needed */
  .form-actions {
    flex-wrap: wrap;
  }
  
  /* Toolbar: stack vertically */
  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .toolbar .form-group {
    min-width: 100%;
  }
  
  /* Calendar toolbar: better stacking */
  .cal-toolbar {
    gap: .5rem;
  }
  
  .cal-toolbar h2 {
    font-size: 1.1rem;
    flex: 1 1 100%;
  }
  
  .cal-nav {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .cal-nav .cal-range {
    min-width: 120px;
  }
  
  /* Appointment slot buttons: smaller */
  .slot-btn {
    font-size: .75rem;
    padding: .3rem .6rem;
  }
}

/* Mobile phones (480px and below) */
@media (max-width: 480px) {
  /* Single column stats */
  .stat-grid { 
    grid-template-columns: 1fr; 
  }
  
  /* Tighter page padding */
  .page-content { 
    padding: 1rem; 
  }
  
  /* Card: less padding */
  .card-body {
    padding: 1rem;
  }
  
  .card-header {
    padding: .75rem 1rem;
    flex-direction: column;
    align-items: flex-start;
  }
  
  .card-header h2,
  .card-header h3 {
    font-size: .95rem;
  }
  
  /* Form grid: single column */
  .form-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  /* Auth card: smaller padding */
  .auth-wrapper {
    padding: 1rem;
  }
  
  .auth-card {
    padding: 1.75rem 1.25rem;
  }
  
  .auth-card h1 {
    font-size: 1.25rem;
  }
  
  /* Top header: stack if very narrow */
  .top-header {
    padding: 0 .75rem;
  }
  
  .top-header .page-title {
    font-size: .9rem;
  }
  
  .top-header .user-info {
    font-size: .75rem;
    gap: .4rem;
  }
  
  .top-header .user-info .role-badge {
    padding: .15rem .5rem;
    font-size: .7rem;
  }
  
  /* Tables: stack action buttons vertically */
  tbody td {
    padding: .45rem .5rem;
  }
  
  tbody td .btn {
    display: block;
    width: 100%;
    margin-bottom: .25rem;
    text-align: center;
  }
  
  tbody td .btn:last-child {
    margin-bottom: 0;
  }
  
  tbody td form {
    display: block !important;
    width: 100%;
    margin-bottom: .25rem;
  }
  
  tbody td form:last-child {
    margin-bottom: 0;
  }
  
  tbody td form button {
    width: 100%;
  }
  
  /* Table responsive: ensure horizontal scroll if needed */
  .table-responsive {
    -webkit-overflow-scrolling: touch;
  }
  
  /* Calendar: smaller fonts */
  .cal-toolbar h2 {
    font-size: 1rem;
  }
  
  .cal-nav .cal-range {
    font-size: .8rem;
    min-width: 100px;
  }
  
  .cal-gutter {
    width: 42px;
  }
  
  .cal-gutter-hour span {
    font-size: .62rem;
  }
  
  .cal-col-header {
    font-size: .68rem;
  }
  
  .cal-col-header .dnum {
    font-size: .9rem;
  }
  
  .cal-evt {
    font-size: .65rem;
    padding: 1px 3px;
  }
  
  .cal-evt b {
    font-size: .66rem;
  }
  
  .cal-evt s {
    font-size: .6rem;
  }
  
  /* Popup: full width on very small screens */
  .cal-popup {
    width: calc(100vw - 2rem);
    max-width: 100%;
    padding: 1.25rem;
  }
  
  .cal-popup h3 {
    font-size: 1rem;
  }
  
  .cal-popup table {
    font-size: .8rem;
  }
  
  .cal-popup .pactions {
    gap: .35rem;
  }
  
  .cal-popup .pactions .btn {
    font-size: .75rem;
    padding: .3rem .6rem;
  }
  
  /* Client autocomplete dropdown: adjust for mobile */
  #client-dropdown {
    max-height: 180px;
  }
  
  #client-dropdown .cd-item {
    padding: .4rem .6rem;
    font-size: .82rem;
  }
  
  #client-dropdown .cd-item small {
    font-size: .7rem;
  }
  
  /* Slot grid: smaller gap */
  #slot-grid {
    gap: .3rem;
  }
  
  .slot-btn {
    font-size: .7rem;
    padding: .25rem .5rem;
  }
}

/* Very small screens (360px and below) */
@media (max-width: 360px) {
  html {
    font-size: 14px;
  }
  
  .page-content {
    padding: .75rem;
  }
  
  .cal-nav {
    flex-direction: column;
    width: 100%;
  }
  
  .cal-nav .cal-range {
    text-align: center;
    width: 100%;
  }
  
  .view-switch {
    width: 100%;
  }
  
  .view-switch a {
    flex: 1;
    text-align: center;
  }
}