/* ═══════════════════════════════════════════════════════════════════════════
   KTF App — Dark Theme Design System
   Fish Processing Plant Time & Share Tracker
   ═══════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Variables ─────────────────────────────────────────────────────────── */
:root {
  --bg-primary:    #0d1117;
  --bg-secondary:  #161b22;
  --bg-card:       #1c2230;
  --bg-input:      #0d1117;
  --bg-hover:      #21262d;

  --accent-blue:   #388bfd;
  --accent-cyan:   #39d353;
  --accent-orange: #e3b341;
  --accent-red:    #f85149;
  --accent-purple: #bc8cff;

  --text-primary:   #e6edf3;
  --text-secondary: #8b949e;
  --text-muted:     #484f58;

  --border-color:   #30363d;
  --border-focus:   #388bfd;

  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.6);

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;

  --transition: 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent-blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: #58a6ff; }

/* ── Scrollbar ─────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Navbar ────────────────────────────────────────────────────────────────── */
.ktf-navbar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(8px);
}

.ktf-navbar__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
}

.ktf-navbar__brand .brand-icon {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}

.ktf-navbar__actions {
  display: flex; align-items: center; gap: 0.75rem;
}

.ktf-navbar__user {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.ktf-navbar__role-badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.role-admin  { background: rgba(188,140,255,0.2); color: var(--accent-purple); }
.role-master { background: rgba(56,139,253,0.2);  color: var(--accent-blue); }

/* ── Sidebar / Nav links ───────────────────────────────────────────────────── */
.ktf-sidebar {
  width: 240px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  min-height: calc(100vh - 57px);
  padding: 1rem 0;
  flex-shrink: 0;
}

.ktf-sidebar__section {
  padding: 0.5rem 1rem 0.25rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.ktf-nav-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
  border-left: 3px solid transparent;
}

.ktf-nav-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.ktf-nav-link.active {
  background: rgba(56,139,253,0.1);
  color: var(--accent-blue);
  border-left-color: var(--accent-blue);
}

/* ── Layout ────────────────────────────────────────────────────────────────── */
.ktf-layout {
  display: flex;
  min-height: calc(100vh - 57px);
}

.ktf-content {
  flex: 1;
  padding: 1.5rem;
  overflow-x: hidden;
  max-width: 1400px;
}

/* ── Cards ─────────────────────────────────────────────────────────────────── */
.ktf-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}

.ktf-card:hover { box-shadow: var(--shadow-md); }

.ktf-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ── Stat cards ────────────────────────────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.25rem;
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--stat-color, var(--accent-blue));
}

.stat-card__value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--stat-color, var(--accent-blue));
  line-height: 1.1;
}

.stat-card__label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.btn-ktf {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-ktf:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary  { background: var(--accent-blue);   color: #fff; }
.btn-primary:hover  { background: #58a6ff; color: #fff; }

.btn-success  { background: var(--accent-cyan);   color: #000; }
.btn-success:hover  { background: #56e26b; color: #000; }

.btn-warning  { background: var(--accent-orange); color: #000; }
.btn-warning:hover  { background: #f0c842; color: #000; }

.btn-danger   { background: var(--accent-red);    color: #fff; }
.btn-danger:hover   { background: #ff7b7b; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); border-color: var(--text-muted); }

/* Large mobile button */
.btn-ktf-lg {
  padding: 0.8rem 1.5rem;
  font-size: 1rem;
  border-radius: var(--radius-md);
  width: 100%;
}

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

.ktf-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.ktf-input, .ktf-select, .ktf-textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  padding: 0.6rem 0.85rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  -webkit-appearance: none;
}

.ktf-input:focus, .ktf-select:focus, .ktf-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(56,139,253,0.2);
}

.ktf-select option { background: var(--bg-secondary); }

/* ── Tables ────────────────────────────────────────────────────────────────── */
.ktf-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.ktf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.ktf-table th {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.ktf-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.ktf-table tr:last-child td { border-bottom: none; }
.ktf-table tr:hover td { background: var(--bg-hover); }

/* ── Badges ────────────────────────────────────────────────────────────────── */
.badge-ktf {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-present { background: rgba(57,211,83,0.15);  color: var(--accent-cyan); }
.badge-sick    { background: rgba(227,179,65,0.15);  color: var(--accent-orange); }
.badge-absent  { background: rgba(248,81,73,0.15);   color: var(--accent-red); }
.badge-open    { background: rgba(56,139,253,0.15);  color: var(--accent-blue); }
.badge-morning { background: rgba(188,140,255,0.15); color: var(--accent-purple); }
.badge-closed  { background: rgba(57,211,83,0.15);   color: var(--accent-cyan); }
.badge-locked  { background: rgba(72,79,88,0.4);     color: var(--text-muted); }

/* ── Alerts ────────────────────────────────────────────────────────────────── */
.ktf-alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.ktf-alert-info    { background: rgba(56,139,253,0.12);  border-left: 3px solid var(--accent-blue); }
.ktf-alert-success { background: rgba(57,211,83,0.12);   border-left: 3px solid var(--accent-cyan); }
.ktf-alert-warning { background: rgba(227,179,65,0.12);  border-left: 3px solid var(--accent-orange); }
.ktf-alert-danger  { background: rgba(248,81,73,0.12);   border-left: 3px solid var(--accent-red); }

/* ── Mobile Attendance List ────────────────────────────────────────────────── */
.attendance-list { display: flex; flex-direction: column; gap: 0.5rem; }

.attendance-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  transition: all var(--transition);
}

.attendance-item.status-sick   { border-left: 3px solid var(--accent-orange); }
.attendance-item.status-absent { border-left: 3px solid var(--accent-red); }
.attendance-item.status-present { border-left: 3px solid var(--accent-cyan); }

.attendance-item__name {
  font-weight: 600;
  font-size: 1rem;
  flex: 1;
}

.attendance-item__dept {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.attendance-item__controls {
  display: flex;
  gap: 0.4rem;
  flex-shrink: 0;
}

/* Toggle status buttons */
.btn-status {
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-status.s-present { background: rgba(57,211,83,0.1);  color: var(--accent-cyan);   border-color: var(--accent-cyan); }
.btn-status.s-sick    { background: rgba(227,179,65,0.1); color: var(--accent-orange); border-color: var(--accent-orange); }
.btn-status.s-absent  { background: rgba(248,81,73,0.1);  color: var(--accent-red);    border-color: var(--accent-red); }

.btn-status.active { opacity: 1; }
.btn-status:not(.active) { opacity: 0.35; }
.btn-status:hover { opacity: 1; }

/* ── Evening / Share controls ──────────────────────────────────────────────── */
.share-control {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.share-btn {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-hover);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.share-btn:hover { background: var(--accent-blue); border-color: var(--accent-blue); }

.share-value {
  min-width: 48px;
  text-align: center;
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent-blue);
}

.hours-input {
  width: 70px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  padding: 0.3rem 0.5rem;
  text-align: center;
}

/* ── Login page ────────────────────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 60% 40%, rgba(56,139,253,0.08) 0%, transparent 60%),
              var(--bg-primary);
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}

.login-card__logo {
  text-align: center;
  margin-bottom: 1.75rem;
}

.login-logo-circle {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 0.75rem;
}

.login-card h1 {
  font-size: 1.4rem;
  font-weight: 700;
  text-align: center;
}

.login-card .subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.2rem;
  margin-bottom: 1.75rem;
}

/* ── Page header ───────────────────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-title {
  font-size: 1.4rem;
  font-weight: 700;
}

/* ── Flashes ───────────────────────────────────────────────────────────────── */
.flash-container {
  position: fixed;
  top: 70px;
  right: 1rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 360px;
}

.flash-msg {
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-md);
  animation: slideIn 0.3s ease;
  cursor: pointer;
}

@keyframes slideIn {
  from { transform: translateX(120%); opacity: 0; }
  to   { transform: translateX(0);   opacity: 1; }
}

.flash-success { background: rgba(57,211,83,0.2);  border: 1px solid var(--accent-cyan);   color: var(--accent-cyan); }
.flash-danger  { background: rgba(248,81,73,0.2);  border: 1px solid var(--accent-red);    color: var(--accent-red); }
.flash-warning { background: rgba(227,179,65,0.2); border: 1px solid var(--accent-orange); color: var(--accent-orange); }
.flash-info    { background: rgba(56,139,253,0.2); border: 1px solid var(--accent-blue);   color: var(--accent-blue); }

/* ── Modal ─────────────────────────────────────────────────────────────────── */
.ktf-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.ktf-modal-overlay.show { opacity: 1; pointer-events: all; }

.ktf-modal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: transform var(--transition);
}
.ktf-modal-overlay.show .ktf-modal { transform: scale(1); }

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

.ktf-modal__title { font-size: 1.05rem; font-weight: 700; }

.ktf-modal__close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.ktf-modal__close:hover { background: var(--bg-hover); color: var(--text-primary); }

/* ── Spinner ───────────────────────────────────────────────────────────────── */
.spinner {
  width: 24px; height: 24px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Utility ───────────────────────────────────────────────────────────────── */
.text-muted   { color: var(--text-muted); }
.text-success { color: var(--accent-cyan); }
.text-danger  { color: var(--accent-red); }
.text-warning { color: var(--accent-orange); }
.text-blue    { color: var(--accent-blue); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.w-100 { width: 100%; }
.text-center { text-align: center; }
.fw-bold { font-weight: 700; }

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .ktf-sidebar { display: none; }
  .ktf-content { padding: 1rem; }
  .page-title { font-size: 1.1rem; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .attendance-item { flex-wrap: wrap; }
  .attendance-item__controls { width: 100%; justify-content: flex-end; }
}

/* ── PWA splash ────────────────────────────────────────────────────────────── */
@media (display-mode: standalone) {
  .ktf-navbar { padding-top: env(safe-area-inset-top, 0.75rem); }
}

/* ── Search / filter bar ───────────────────────────────────────────────────── */
.search-bar {
  position: relative;
  margin-bottom: 1rem;
}

.search-bar input {
  padding-left: 2.4rem;
}

.search-bar .search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* ── Med-book warning ──────────────────────────────────────────────────────── */
.med-warning {
  color: var(--accent-red);
  font-weight: 600;
  font-size: 0.8rem;
}

/* ── Latecomer indicator ───────────────────────────────────────────────────── */
.latecomer-badge {
  font-size: 0.72rem;
  padding: 2px 6px;
  background: rgba(227,179,65,0.2);
  color: var(--accent-orange);
  border-radius: 20px;
  font-weight: 600;
}