/* ============================================================
   style.css — HMC Attendance Management System
   Mobile-first responsive design
   Breakpoints: 480px | 640px | 768px | 1024px | 1280px
   ============================================================ */

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

:root {
  --primary:      #4f46e5;
  --primary-dark: #3730a3;
  --primary-light:#e0e7ff;
  --success:      #16a34a;
  --success-bg:   #dcfce7;
  --danger:       #dc2626;
  --danger-bg:    #fee2e2;
  --warning:      #ca8a04;
  --warning-bg:   #fef9c3;
  --info:         #0284c7;
  --info-bg:      #e0f2fe;
  --gray-50:      #f9fafb;
  --gray-100:     #f3f4f6;
  --gray-200:     #e5e7eb;
  --gray-300:     #d1d5db;
  --gray-500:     #6b7280;
  --gray-700:     #374151;
  --gray-900:     #111827;
  --white:        #ffffff;
  --sidebar-w:    250px;
  --topbar-h:     56px;
  --radius:       8px;
  --radius-lg:    12px;
  --shadow:       0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-md:    0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --transition:   .2s ease;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--gray-100);
  color: var(--gray-900);
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

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

/* ── Login Page ────────────────────────────────────────────── */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 2rem 1rem;
}

.login-card {
  background: var(--white);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}

/* ── Layout ────────────────────────────────────────────────── */
.layout { display: flex; min-height: 100vh; }

/* Sidebar — base styles (detailed styles in header.php) */
.sidebar {
  width: 250px;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform .25s cubic-bezier(.4,0,.2,1);
}


/* Main content */
.main-content {
  margin-left: 250px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  background: #1a4a6b;
  border-bottom: 1px solid #0d2d45;
  padding: .875rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow);
}

.topbar-title { font-size: 1.1rem; font-weight: 700; color: #ffffff; }
.topbar-date  { font-size: .8rem; color: rgba(255,255,255,.8); }

.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: #ffffff;
  padding: .25rem;
}

.page-content { padding: 1.5rem; flex: 1; }

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .5rem;
}

.card-title { font-size: 1rem; font-weight: 700; color: var(--gray-900); }
.card-body  { padding: 1.25rem; }

/* ── Stat Cards ────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: .875rem;
  margin-bottom: 1.25rem;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: .875rem;
}

.stat-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.stat-icon.blue   { background: var(--primary-light); }
.stat-icon.green  { background: var(--success-bg); }
.stat-icon.red    { background: var(--danger-bg); }
.stat-icon.yellow { background: var(--warning-bg); }

.stat-value { font-size: 1.6rem; font-weight: 800; line-height: 1; }
.stat-label { font-size: .78rem; color: var(--gray-500); margin-top: .2rem; }

/* ── Forms ─────────────────────────────────────────────────── */
.form-group { margin-bottom: 1rem; }

.form-label {
  display: block;
  font-size: .875rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: .35rem;
}

.form-control {
  width: 100%;
  padding: .6rem .9rem;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 1rem;        /* 16px — prevents iOS auto-zoom */
  color: var(--gray-900);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  min-height: 44px;       /* touch-friendly */
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.15);
}

.form-control.is-invalid { border-color: var(--danger); }
.invalid-feedback { font-size: .8rem; color: var(--danger); margin-top: .25rem; display: block; }

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .6rem 1.1rem;
  border-radius: var(--radius);
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  white-space: nowrap;
  min-height: 40px;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); text-decoration: none; }
.btn:active { transform: translateY(0); }

.btn-primary   { background: var(--primary);  color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success   { background: var(--success);  color: var(--white); }
.btn-success:hover { background: #15803d; }
.btn-danger    { background: var(--danger);   color: var(--white); }
.btn-danger:hover { background: #b91c1c; }
.btn-warning   { background: #f59e0b;         color: var(--white); }
.btn-warning:hover { background: #d97706; }
.btn-secondary { background: var(--gray-200); color: var(--gray-700); }
.btn-secondary:hover { background: var(--gray-300); }
.btn-outline   { background: transparent; border: 1.5px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); }

.btn-sm    { padding: .35rem .75rem; font-size: .8rem;  min-height: 34px; }
.btn-lg    { padding: .75rem 1.5rem; font-size: 1rem;   min-height: 48px; }
.btn-block { width: 100%; }

/* ── Tables ────────────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }

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

thead th {
  background: var(--gray-50);
  padding: .7rem 1rem;
  text-align: left;
  font-weight: 700;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--gray-500);
  border-bottom: 2px solid var(--gray-200);
  white-space: nowrap;
}

tbody td {
  padding: .7rem 1rem;
  border-bottom: 1px solid var(--gray-100);
  vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--gray-50); }

/* ── Badges / Status ───────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .2rem .6rem;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 700;
  text-transform: capitalize;
  white-space: nowrap;
}

.badge-present    { background: var(--success-bg); color: var(--success); }
.badge-absent     { background: var(--danger-bg);  color: var(--danger); }
.badge-late       { background: var(--warning-bg); color: var(--warning); }
.badge-permission { background: #e0f2fe; color: #0284c7; }
.badge-info       { background: var(--info-bg);    color: var(--info); }
.badge-gray       { background: var(--gray-100);   color: var(--gray-500); }

/* ── Alerts ────────────────────────────────────────────────── */
.alert {
  padding: .85rem 1rem;
  border-radius: var(--radius);
  font-size: .875rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
  gap: .6rem;
}

.alert-success { background: var(--success-bg); color: var(--success); border-left: 4px solid var(--success); }
.alert-danger  { background: var(--danger-bg);  color: var(--danger);  border-left: 4px solid var(--danger); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border-left: 4px solid #f59e0b; }
.alert-info    { background: var(--info-bg);    color: var(--info);    border-left: 4px solid var(--info); }

/* ── Progress Bar ──────────────────────────────────────────── */
.progress { height: 8px; background: var(--gray-200); border-radius: 999px; overflow: hidden; }
.progress-bar { height: 100%; border-radius: 999px; transition: width .4s ease; }
.progress-bar.high   { background: var(--success); }
.progress-bar.medium { background: #f59e0b; }
.progress-bar.low    { background: var(--danger); }

/* ── Search & Filter Bar ───────────────────────────────────── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: flex-end;
  margin-bottom: 1rem;
}
.filter-bar .form-group { margin-bottom: 0; }

/* ── Attendance Radio ──────────────────────────────────────── */
.att-radio-group { display: flex; gap: .4rem; flex-wrap: wrap; }
.att-radio-group input[type="radio"] { display: none; }

.att-radio-group label {
  padding: .4rem .85rem;
  border-radius: var(--radius);
  font-size: .82rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all .15s ease;
  user-select: none;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  letter-spacing: .02em;
  /* Default unselected — flat gray */
  background: #e5e7eb;
  color: #6b7280;
  box-shadow: 0 3px 0 #9ca3af, 0 1px 3px rgba(0,0,0,.15);
  transform: translateY(0);
}

.att-radio-group label:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.att-radio-group label:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 #9ca3af;
}

/* ── Present — green 3D ── */
.att-radio-group input[value="present"]:checked + label {
  background: linear-gradient(180deg, #22c55e 0%, #16a34a 100%);
  color: #fff;
  box-shadow: 0 4px 0 #15803d, 0 2px 8px rgba(22,163,74,.4);
  transform: translateY(0);
  text-shadow: 0 1px 2px rgba(0,0,0,.2);
}

/* ── Absent — red 3D ── */
.att-radio-group input[value="absent"]:checked + label {
  background: linear-gradient(180deg, #f87171 0%, #dc2626 100%);
  color: #fff;
  box-shadow: 0 4px 0 #b91c1c, 0 2px 8px rgba(220,38,38,.4);
  transform: translateY(0);
  text-shadow: 0 1px 2px rgba(0,0,0,.2);
}

/* ── Late — amber 3D ── */
.att-radio-group input[value="late"]:checked + label {
  background: linear-gradient(180deg, #fbbf24 0%, #d97706 100%);
  color: #fff;
  box-shadow: 0 4px 0 #b45309, 0 2px 8px rgba(217,119,6,.4);
  transform: translateY(0);
  text-shadow: 0 1px 2px rgba(0,0,0,.2);
}

/* ── Permission — blue 3D ── */
.att-radio-group input[value="permission"]:checked + label {
  background: linear-gradient(180deg, #38bdf8 0%, #0284c7 100%);
  color: #fff;
  box-shadow: 0 4px 0 #0369a1, 0 2px 8px rgba(2,132,199,.4);
  transform: translateY(0);
  text-shadow: 0 1px 2px rgba(0,0,0,.2);
}

/* ── Modal ─────────────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 300;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--white);
  border-radius: 12px;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px rgba(0,0,0,.25);
  animation: slideUp .2s ease;
}
@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}
.modal-header { padding: 1.25rem; border-bottom: 1px solid var(--gray-200); display: flex; align-items: center; justify-content: space-between; }
.modal-title  { font-size: 1rem; font-weight: 700; }
.modal-close  { background: none; border: none; font-size: 1.4rem; cursor: pointer; color: var(--gray-500); line-height: 1; min-width: 44px; min-height: 44px; display: flex; align-items: center; justify-content: center; }
.modal-body   { padding: 1.25rem; }
.modal-footer { padding: 1rem 1.25rem; border-top: 1px solid var(--gray-200); display: flex; gap: .75rem; justify-content: flex-end; flex-wrap: wrap; }

/* ── Pagination ────────────────────────────────────────────── */
.pagination { display: flex; gap: .35rem; align-items: center; flex-wrap: wrap; margin-top: 1rem; }
.page-link {
  padding: .45rem .8rem;
  border-radius: var(--radius);
  border: 1.5px solid var(--gray-300);
  font-size: .85rem;
  color: var(--gray-700);
  background: var(--white);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
}
.page-link:hover, .page-link.active { background: var(--primary); border-color: var(--primary); color: var(--white); text-decoration: none; }
.page-link.disabled { opacity: .4; pointer-events: none; }

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — Mobile-first breakpoints
   ══════════════════════════════════════════════════════════════ */

/* ── Tablet landscape (≤ 1024px) ───────────────────────────── */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ── Tablet portrait (≤ 768px) ─────────────────────────────── */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: 260px;
    box-shadow: none;
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0,0,0,.3);
  }
  .main-content { margin-left: 0; }
  .hamburger { display: inline-flex; }
  .topbar { padding: 0 1rem; }
  .topbar-date { display: none; }
  .page-content { padding: 1rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: .75rem; }
  .form-row { grid-template-columns: 1fr; }
  .card-header { flex-direction: column; align-items: flex-start; }
  .card-header .btn, .card-header a.btn { align-self: flex-start; }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .filter-bar .form-group, .filter-bar .btn { width: 100%; }
  .modal { max-width: 100%; border-radius: 16px 16px 0 0; }
  .modal-overlay { align-items: flex-end; padding: 0; }
}

/* ── Mobile (≤ 640px) ──────────────────────────────────────── */
@media (max-width: 640px) {
  body { font-size: 14px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: .6rem; }
  .stat-card { padding: .875rem; gap: .65rem; }
  .stat-icon { width: 42px; height: 42px; font-size: 1.2rem; }
  .stat-value { font-size: 1.4rem; }
  .page-content { padding: .875rem; }
  thead th { padding: .6rem .75rem; font-size: .72rem; }
  tbody td  { padding: .6rem .75rem; font-size: .82rem; }
  .card-body { padding: 1rem; }
  .login-card { padding: 1.75rem 1.25rem; border-radius: 12px; }
  .topbar-title { font-size: .88rem; }
  .d-flex.gap-1 { flex-wrap: wrap; }
}

/* ── Small mobile (≤ 480px) ────────────────────────────────── */
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .hide-xs { display: none !important; }
  .btn-block-xs { width: 100%; justify-content: center; }
  .page-link { padding: .4rem .6rem; font-size: .8rem; }
}

/* ── Print ─────────────────────────────────────────────────── */
@media print {
  .sidebar, .topbar, .btn, .filter-bar, .no-print,
  #overlay, .hamburger { display: none !important; }
  .main-content { margin-left: 0 !important; }
  .card { box-shadow: none; border: 1px solid #ccc; page-break-inside: avoid; }
  body { background: white; font-size: 12px; }
  .page-content { padding: 0; }
}

/* ── Utility ───────────────────────────────────────────────── */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-muted  { color: var(--gray-500); }
.text-small  { font-size: .8rem; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: .5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.gap-1 { gap: .5rem; }
.gap-2 { gap: 1rem; }
.flex-wrap { flex-wrap: wrap; }
.justify-between { justify-content: space-between; }
.w-100 { width: 100%; }
.fw-bold { font-weight: 700; }

/* ══════════════════════════════════════════════════════════════
   MOBILE ENHANCEMENTS — Phone-first fixes
   ══════════════════════════════════════════════════════════════ */

/* Fix iOS auto-zoom: all inputs must be 16px */
input, select, textarea, .form-control {
  font-size: 16px !important;
}

/* Hamburger — proper tap target */
.hamburger {
  min-width: 44px;
  min-height: 44px;
  display: none;
  align-items: center;
  justify-content: center;
}

/* Remove inline min-width overrides on filter fields on mobile */
@media (max-width: 768px) {
  .filter-bar .form-control,
  .filter-bar select,
  .filter-bar input[type="text"],
  .filter-bar input[type="date"],
  .filter-bar input[type="datetime-local"] {
    min-width: 0 !important;
    width: 100% !important;
  }

  /* Attendance status buttons — wrap on small screens */
  .att-status-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: .3rem;
  }

  /* Tasks assign dropdown — full width */
  #assignDropdown {
    position: fixed !important;
    top: auto !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    border-radius: 16px 16px 0 0 !important;
    max-height: 70vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    z-index: 999 !important;
  }
  #userCheckList {
    max-height: 50vh !important;
    -webkit-overflow-scrolling: touch;
  }

  /* Submit buttons full width on mobile */
  .btn-submit-mobile {
    width: 100%;
    justify-content: center;
  }

  /* Card header actions stack */
  .card-header > div { width: 100%; }

  /* Form row always single column */
  .form-row { grid-template-columns: 1fr !important; }

  /* Topbar title truncate */
  .topbar-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: calc(100vw - 120px);
  }
}

/* ── Attendance table — card layout on mobile ── */
@media (max-width: 640px) {
  /* Hide table headers */
  .att-table thead { display: none; }

  /* Each row becomes a card */
  .att-table tbody tr {
    display: block;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    margin-bottom: .75rem;
    padding: .75rem;
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .att-table tbody td {
    display: flex;
    align-items: flex-start;
    gap: .5rem;
    padding: .3rem 0;
    border: none;
    font-size: .875rem;
  }

  /* Label each cell with data-label */
  .att-table tbody td::before {
    content: attr(data-label);
    font-weight: 700;
    font-size: .75rem;
    color: var(--gray-500);
    min-width: 70px;
    flex-shrink: 0;
    text-transform: uppercase;
    letter-spacing: .04em;
    padding-top: .1rem;
  }

  /* Status buttons wrap */
  .att-table td[data-label="Status"] { flex-wrap: wrap; }

  /* Page content tighter */
  .page-content { padding: .625rem; }

  /* Stats 2 columns */
  .stats-grid { grid-template-columns: 1fr 1fr; gap: .5rem; }
  .stat-card { padding: .75rem; gap: .5rem; }
  .stat-value { font-size: 1.25rem; }
  .stat-icon { width: 36px; height: 36px; font-size: 1rem; }

  /* Login card full width */
  .lp-card { border-radius: 12px; }
  .lp-header { padding: 1.5rem 1.25rem 1.25rem; }
  .lp-body { padding: 1.25rem; }
  .lp-logo-wrap { width: 90px; height: 90px; }

  /* My tasks submit button */
  form[enctype] .btn-success { width: 100%; justify-content: center; }

  /* Table horizontal scroll hint */
  .table-wrapper {
    -webkit-overflow-scrolling: touch;
    overflow-x: auto;
  }
  .table-wrapper::after {
    content: '';
    display: block;
  }
}

/* ── Extra small (320px) ── */
@media (max-width: 380px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .topbar { padding: 0 .625rem; }
  .page-content { padding: .5rem; }
  .card-body { padding: .75rem; }
  .btn { padding: .5rem .75rem; font-size: .8rem; }
  .btn-lg { padding: .65rem 1rem; font-size: .9rem; }
}