/* ==========================================================================
   Shree KB Group CRM — Minimal Modern Design System
   Theme: Minimalist White & #D88626 Accent
   Zero Box-Shadows, Crisp Minimal Borders, Precision Typography
   File: public/assets/css/app.css
   ========================================================================== */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  
  /* Backgrounds */
  --bg-main: #f9fafb;
  --bg-card: #ffffff;
  --topbar-bg: #ffffff;
  --sidebar-bg: #ffffff;
  --sidebar-hover: #f9fafb;
  --sidebar-active-bg: #fef8f0;
  --sidebar-active-text: #D88626;
  --sidebar-text: #4b5563;
  
  /* Primary Brand: #D88626 */
  --primary: #D88626;
  --primary-hover: #bf731b;
  --primary-active: #a66215;
  --primary-light: #fef8f0;
  --primary-border: #f4d3a8;
  
  /* Semantic Colors */
  --success: #059669;
  --success-light: #ecfdf5;
  --success-border: #a7f3d0;
  
  --warning: #d97706;
  --warning-light: #fffbeb;
  --warning-border: #fde68a;
  
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --danger-border: #fecaca;
  
  --info: #0284c7;
  --info-light: #f0f9ff;
  --info-border: #bae6fd;
  
  /* Typography & Borders */
  --text-dark: #111827;
  --text-body: #374151;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  
  --border-color: #e5e7eb;
  --border-subtle: #f3f4f6;
  --border-dark: #d1d5db;
  
  /* Strict Zero Shadow */
  --shadow-sm: none;
  --shadow: none;
  --shadow-md: none;
  
  /* Corner Radii */
  --radius-sm: 4px;
  --radius: 6px;
  --radius-lg: 8px;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-body);
  line-height: 1.5;
  font-size: 13.5px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover {
  color: var(--primary-hover);
  text-decoration: none;
}

/* Feather Icon Component */
.feather-icon {
  display: inline-block;
  vertical-align: -0.15em;
  stroke-width: 1.8;
  flex-shrink: 0;
}

/* Layout */
.app-layout {
  display: flex;
  min-height: 100vh;
  background-color: var(--bg-main);
}

/* Sidebar */
.app-sidebar {
  width: 250px;
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--border-color);
  color: var(--text-dark);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: all 0.2s ease;
  z-index: 100;
}

.sidebar-header {
  padding: 20px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-brand-icon {
  width: 36px;
  height: 36px;
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}
.sidebar-brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.sidebar-logo-img {
  height: 38px;
  width: auto;
  max-width: 54px;
  object-fit: contain;
}

.sidebar-brand-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: -0.2px;
  line-height: 1.2;
}

.sidebar-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  font-weight: 700;
  margin-top: 3px;
  letter-spacing: 0.3px;
}

.sidebar-nav {
  padding: 14px 10px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  color: var(--sidebar-text);
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 13.5px;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.nav-link:hover {
  background-color: var(--sidebar-hover);
  color: var(--text-dark);
  border-color: var(--border-subtle);
  text-decoration: none;
}

.nav-link.active {
  background-color: var(--sidebar-active-bg);
  color: var(--sidebar-active-text);
  font-weight: 600;
  border-color: var(--primary-border);
}

.nav-link.active .feather-icon {
  stroke: var(--primary);
}

.nav-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: currentColor;
}

/* Topbar */
.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.app-topbar {
  height: 60px;
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 90;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.topbar-logo-img {
  height: 32px;
  width: auto;
  max-width: 50px;
  object-fit: contain;
}

.topbar-brand-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: -0.2px;
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-body);
  padding: 6px 9px;
  cursor: pointer;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-icon-btn,
.notif-bell-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  position: relative;
  cursor: pointer;
  color: var(--text-body);
  padding: 7px;
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  text-decoration: none;
  line-height: 1;
}

.topbar-icon-btn:hover,
.topbar-icon-btn.active,
.notif-bell-btn:hover {
  border-color: var(--primary-border);
  color: var(--primary);
  background: var(--primary-light);
}

.notif-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  height: 16px;
  min-width: 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  border: 1px solid #fff;
}

.user-profile-menu {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius);
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  color: var(--primary);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}

/* Page Layout */
.page-content {
  padding: 24px;
  flex: 1;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: -0.3px;
}

.page-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Cards (Strict Minimalist: 1px Border, No Shadow) */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: none !important;
  margin-bottom: 22px;
}

.card-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dark);
}

.card-body {
  padding: 18px;
}

/* KPI Metric Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.metric-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: none !important;
  transition: border-color 0.15s ease;
}

.metric-card:hover {
  border-color: var(--primary-border);
}

.metric-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.metric-icon.blue { background: var(--primary-light); color: var(--primary); border: 1px solid var(--primary-border); }
.metric-icon.green { background: var(--success-light); color: var(--success); border: 1px solid var(--success-border); }
.metric-icon.amber { background: var(--warning-light); color: var(--warning); border: 1px solid var(--warning-border); }
.metric-icon.rose { background: var(--danger-light); color: var(--danger); border: 1px solid var(--danger-border); }
.metric-icon.cyan { background: var(--info-light); color: var(--info); border: 1px solid var(--info-border); }

.metric-val {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.1;
  letter-spacing: -0.5px;
}

.metric-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 3px;
}

/* Minimalist Clean Buttons (1px Border, No Shadow) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 13px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  box-shadow: none !important;
  line-height: 1.4;
  white-space: nowrap;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  border-color: #c0731a;
}
.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-active);
  color: #ffffff;
}

.btn-secondary {
  background: #ffffff;
  border-color: var(--border-dark);
  color: var(--text-dark);
}
.btn-secondary:hover {
  background: var(--bg-main);
  border-color: #9ca3af;
  color: var(--text-dark);
}

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

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

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

.btn-whatsapp {
  background: #25d366;
  color: #ffffff;
  border-color: #1eb956;
}
.btn-whatsapp:hover {
  background: #1eb956;
  color: #ffffff;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 10px 18px;
  font-size: 14px;
}

/* Badges (Delicate borders & clean tint) */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid transparent;
}

.badge-primary { background: var(--primary-light); color: var(--primary); border-color: var(--primary-border); }
.badge-success { background: var(--success-light); color: #065f46; border-color: var(--success-border); }
.badge-warning { background: var(--warning-light); color: #92400e; border-color: var(--warning-border); }
.badge-danger { background: var(--danger-light); color: #991b1b; border-color: var(--danger-border); }
.badge-info { background: var(--info-light); color: #0369a1; border-color: var(--info-border); }
.badge-neutral { background: #f3f4f6; color: #374151; border-color: var(--border-color); }
.badge-muted { background: #f9fafb; color: #6b7280; border-color: var(--border-color); }

/* Form Elements */
.form-group {
  margin-bottom: 15px;
}

.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  margin-bottom: 5px;
  color: var(--text-dark);
}

.form-control {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  font-size: 13.5px;
  background: #ffffff;
  color: var(--text-dark);
  transition: border-color 0.15s ease;
  box-shadow: none !important;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  background: #ffffff;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

/* Minimalist Filter Bar */
.filter-bar {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  margin-bottom: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-end;
  box-shadow: none !important;
}

/* Minimal Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: #ffffff;
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.table th {
  background: #fafafa;
  padding: 11px 16px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
  font-size: 13px;
}

.table tbody tr:last-child td {
  border-bottom: none;
}

.table tbody tr:hover {
  background: #fbfbfc;
}

/* Alerts */
.flash-container {
  margin-bottom: 18px;
}

.alert {
  padding: 11px 15px;
  border-radius: var(--radius);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  box-shadow: none !important;
}

.alert-success { background: var(--success-light); color: #065f46; border: 1px solid var(--success-border); }
.alert-danger { background: var(--danger-light); color: #991b1b; border: 1px solid var(--danger-border); }
.alert-warning { background: var(--warning-light); color: #92400e; border: 1px solid var(--warning-border); }
.alert-info { background: var(--info-light); color: #075985; border: 1px solid var(--info-border); }

.alert-close {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: inherit;
  opacity: 0.6;
}
.alert-close:hover { opacity: 1; }

/* Timeline */
.timeline {
  position: relative;
  padding-left: 20px;
  border-left: 1px solid var(--border-color);
  margin-left: 8px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.timeline-item {
  position: relative;
}

.timeline-dot {
  position: absolute;
  left: -26px;
  top: 3px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid #ffffff;
}

.timeline-time {
  font-size: 11px;
  color: var(--text-muted);
}

.timeline-title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 2px;
  color: var(--text-dark);
}

.timeline-desc {
  font-size: 12.5px;
  color: var(--text-body);
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  padding: 7px 11px;
  border-radius: var(--radius);
  margin-top: 5px;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(17, 24, 39, 0.4);
  backdrop-filter: blur(2px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
}

.modal-dialog {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  box-shadow: none !important;
  overflow: hidden;
}

.modal-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
}

.modal-close {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-muted);
}

.modal-body {
  padding: 18px;
}

.modal-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  background: #fafafa;
}

/* Auth Pages (Clean White & #D88626) */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fafbfc;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: none !important;
}

.auth-logo-box {
  text-align: center;
  margin-bottom: 24px;
}

.auth-logo-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 12px auto;
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-logo-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: -0.3px;
}

.auth-portal-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  padding: 2px 9px;
  border-radius: 4px;
  margin-top: 6px;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  letter-spacing: 0.3px;
}

/* Responsive Media Queries */
@media (max-width: 768px) {
  .app-sidebar {
    position: fixed;
    top: 0;
    left: -260px;
    height: 100vh;
  }
  
  .app-sidebar.show {
    left: 0;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .page-content {
    padding: 16px;
  }
  
  .metrics-grid {
    grid-template-columns: 1fr;
  }
}