/* ================================================================
   SmartHRM Pro — main.css
   Base: CSS variables, typography, utility classes, animations
   ================================================================ */

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

/* ========================
   CSS CUSTOM PROPERTIES
   ======================== */
:root {
  /* Brand Colors */
  --color-primary:       #4F46E5;
  --color-primary-dark:  #4338CA;
  --color-primary-light: #EEF2FF;
  --color-secondary:     #6366F1;

  /* UI Colors */
  --color-success:       #10B981;
  --color-warning:       #F59E0B;
  --color-danger:        #EF4444;
  --color-info:          #3B82F6;

  --color-success-light: #D1FAE5;
  --color-warning-light: #FEF3C7;
  --color-danger-light:  #FEE2E2;
  --color-info-light:    #DBEAFE;

  /* Neutrals */
  --color-bg:            #F9FAFB;
  --color-white:         #FFFFFF;
  --color-text:          #111827;
  --color-text-muted:    #6B7280;
  --color-text-light:    #9CA3AF;
  --color-border:        #E5E7EB;
  --color-border-light:  #F3F4F6;

  /* Sidebar */
  --sidebar-bg:          #1F2937;
  --sidebar-hover:       #374151;
  --sidebar-active:      #4F46E5;
  --sidebar-text:        rgba(255, 255, 255, 0.70);
  --sidebar-text-active: #FFFFFF;
  --sidebar-section:     rgba(255, 255, 255, 0.35);

  /* Layout */
  --sidebar-width:       260px;
  --sidebar-collapsed:   72px;
  --topbar-height:       64px;

  /* Border Radius */
  --radius-xs:  4px;
  --radius-sm:  8px;
  --radius:     12px;
  --radius-lg:  16px;
  --radius-xl:  20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs:  0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm:  0 1px 3px rgba(0, 0, 0, 0.10), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow:     0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md:  0 10px 15px rgba(0, 0, 0, 0.10), 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-lg:  0 20px 25px rgba(0, 0, 0, 0.10), 0 10px 10px rgba(0, 0, 0, 0.04);
  --shadow-xl:  0 25px 50px rgba(0, 0, 0, 0.12);

  /* Transitions */
  --transition-fast:   all 0.15s ease;
  --transition:        all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   all 0.40s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================
   RESET & BASE
   ======================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  color-scheme: light !important;
  font-size: 14px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Override Bootstrap dark theme */
[data-bs-theme="dark"] {
  color-scheme: light !important;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover { color: var(--color-primary-dark); }

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}

/* ========================
   TYPOGRAPHY UTILITIES
   ======================== */
.text-primary  { color: var(--color-primary)      !important; }
.text-secondary{ color: var(--color-secondary)     !important; }
.text-success  { color: var(--color-success)       !important; }
.text-warning  { color: var(--color-warning)       !important; }
.text-danger   { color: var(--color-danger)        !important; }
.text-info     { color: var(--color-info)          !important; }
.text-muted    { color: var(--color-text-muted)    !important; }
.text-light    { color: var(--color-text-light)    !important; }
.text-dark     { color: var(--color-text)          !important; }

.fw-300 { font-weight: 300; }
.fw-400 { font-weight: 400; }
.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.fw-800 { font-weight: 800; }

/* ========================
   PAGE HEADER
   ======================== */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.page-heading {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-heading i {
  color: var(--color-primary);
  font-size: 20px;
}

.page-subheading {
  font-size: 13px;
  color: var(--color-text-muted);
  margin: 4px 0 0;
}

/* ========================
   BUTTONS
   ======================== */
.btn {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  border-radius: var(--radius-sm) !important;
  transition: var(--transition) !important;
  font-size: 13px;
  padding: 8px 18px !important;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-primary {
  background: var(--color-primary) !important;
  border-color: var(--color-primary) !important;
  color: #fff !important;
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.30);
}

.btn-primary:hover {
  background: var(--color-primary-dark) !important;
  border-color: var(--color-primary-dark) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.40) !important;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-success {
  background: var(--color-success) !important;
  border-color: var(--color-success) !important;
  color: #fff !important;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25);
}

.btn-success:hover {
  background: #059669 !important;
  border-color: #059669 !important;
  transform: translateY(-1px);
}

.btn-danger {
  background: var(--color-danger) !important;
  border-color: var(--color-danger) !important;
  color: #fff !important;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.25);
}

.btn-danger:hover {
  background: #DC2626 !important;
  transform: translateY(-1px);
}

.btn-warning {
  background: var(--color-warning) !important;
  border-color: var(--color-warning) !important;
  color: #fff !important;
}

.btn-warning:hover {
  background: #D97706 !important;
  transform: translateY(-1px);
}

.btn-secondary {
  background: #6B7280 !important;
  border-color: #6B7280 !important;
  color: #fff !important;
}

.btn-outline-secondary {
  border-color: var(--color-border) !important;
  color: var(--color-text-muted) !important;
  background: transparent !important;
}

.btn-outline-secondary:hover {
  background: var(--color-bg) !important;
  border-color: var(--color-text-muted) !important;
  color: var(--color-text) !important;
}

.btn-sm {
  padding: 5px 12px !important;
  font-size: 12px;
}

.btn-icon {
  width: 34px;
  height: 34px;
  padding: 0 !important;
  justify-content: center;
  border-radius: var(--radius-sm) !important;
}

/* ========================
   PAGE HEADERS
   ======================== */
.page-title,
h3.mb-3,
h2.mb-3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px !important;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-title i,
h3.mb-3 i,
h2.mb-3 i {
  color: var(--color-primary);
}

/* ========================
   BADGES
   ======================== */
.badge {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  border-radius: var(--radius-full) !important;
  font-size: 11px;
  padding: 4px 10px !important;
  letter-spacing: 0.02em;
}

.badge-active, .badge-present {
  background: var(--color-success-light);
  color: #065F46;
}

.badge-inactive {
  background: var(--color-danger-light);
  color: #991B1B;
}

.badge-pending {
  background: var(--color-warning-light);
  color: #92400E;
}

.badge-approved {
  background: var(--color-success-light);
  color: #065F46;
}

.badge-rejected {
  background: var(--color-danger-light);
  color: #991B1B;
}

.badge-absent {
  background: var(--color-danger-light);
  color: #991B1B;
}

.badge-late {
  background: var(--color-warning-light);
  color: #92400E;
}

.badge-completed {
  background: var(--color-success-light);
  color: #065F46;
}

.badge-in-progress {
  background: var(--color-info-light);
  color: #1E40AF;
}

.badge-high {
  background: var(--color-danger-light);
  color: #991B1B;
}

.badge-medium {
  background: var(--color-warning-light);
  color: #92400E;
}

.badge-low {
  background: var(--color-success-light);
  color: #065F46;
}

.badge-primary-soft {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* ========================
   ALERTS
   ======================== */
.alert {
  border: none !important;
  border-radius: var(--radius-sm) !important;
  padding: 12px 16px !important;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px !important;
}

.alert-success {
  background: var(--color-success-light) !important;
  color: #065F46 !important;
}

.alert-danger {
  background: var(--color-danger-light) !important;
  color: #991B1B !important;
}

.alert-warning {
  background: var(--color-warning-light) !important;
  color: #92400E !important;
}

.alert-info {
  background: var(--color-info-light) !important;
  color: #1E40AF !important;
}

/* ========================
   FORM CONTROLS (Bootstrap override)
   ======================== */
.form-control,
.form-select {
  font-family: 'Inter', sans-serif !important;
  font-size: 13px !important;
  color: var(--color-text) !important;
  background-color: var(--color-white) !important;
  border: 1.5px solid var(--color-border) !important;
  border-radius: var(--radius-sm) !important;
  padding: 10px 14px !important;
  transition: var(--transition-fast) !important;
  box-shadow: none !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12) !important;
  outline: none !important;
}

.form-control::placeholder {
  color: var(--color-text-light) !important;
}

.form-label {
  font-size: 13px !important;
  font-weight: 600 !important;
  color: var(--color-text) !important;
  margin-bottom: 6px !important;
}

.form-text {
  font-size: 12px !important;
  color: var(--color-text-muted) !important;
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

/* Section header inside forms */
.section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 20px;
}

.section-header h4 {
  color: white;
  font-size: 14px;
  margin: 0;
}

/* ========================
   ANIMATIONS
   ======================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.04); }
}

.fade-in    { animation: fadeIn 0.4s ease both; }
.fade-in-up { animation: fadeInUp 0.4s ease both; }
.slide-in   { animation: slideInLeft 0.35s ease both; }

/* Staggered delay helpers */
.delay-1 { animation-delay: 0.05s; }
.delay-2 { animation-delay: 0.10s; }
.delay-3 { animation-delay: 0.15s; }
.delay-4 { animation-delay: 0.20s; }

/* ========================
   MISC UTILITIES
   ======================== */
.divider {
  height: 1px;
  background: var(--color-border);
  margin: 20px 0;
}

/* Legacy utility aliases used in existing views */
.justify-center {
  justify-content: center !important;
}

.justify-between {
  justify-content: space-between !important;
}

.align-center {
  align-items: center !important;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.avatar-sm {
  width: 32px;
  height: 32px;
}

.avatar-lg {
  width: 56px;
  height: 56px;
}

.avatar-xl {
  width: 80px;
  height: 80px;
}

.avatar-placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-weight: 600;
}

/* Action buttons in tables */
.action-btn {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-text-muted);
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-fast);
}

.action-btn:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.action-btn.action-danger:hover {
  background: var(--color-danger-light);
  border-color: var(--color-danger);
  color: var(--color-danger);
}

.action-btn.action-success:hover {
  background: var(--color-success-light);
  border-color: var(--color-success);
  color: var(--color-success);
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 24px;
}

.empty-state i {
  font-size: 48px;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.empty-state h5 {
  font-size: 16px;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 13px;
  color: var(--color-text-light);
}