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

:root {
  --font-sans: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Soft, Eye-Friendly Enterprise Light Palette (Designed for long workdays) */
  --bg-main: #f8fafc;
  --bg-sidebar: #ffffff;
  --bg-header: rgba(255, 255, 255, 0.95);
  --bg-card: #ffffff;
  --bg-card-hover: #fcfdfe;
  --bg-card-hero: linear-gradient(135deg, #ffffff 0%, #f0f7ff 100%);
  --bg-input: #ffffff;
  --bg-subtle: #f1f5f9;
  
  /* Precision Borders */
  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-focus: #2563eb;
  --border-hover: #93c5fd;
  
  /* High-Contrast, Ergonomic Typography */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  /* Vibrant Clean Accents */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-glow: rgba(37, 99, 235, 0.2);
  --accent-cyan: #0284c7;
  --accent-indigo: #4f46e5;
  --accent-emerald: #059669;
  --accent-amber: #d97706;
  --accent-rose: #e11d48;
  --accent-purple: #7c3aed;
  
  /* Radii & Elevation Shadows */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.03);
  --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-card-hover: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
}

/* Optional Dark Mode if user toggles */
[data-theme="dark"] {
  --bg-main: #080c14;
  --bg-sidebar: rgba(10, 15, 26, 0.95);
  --bg-header: rgba(10, 15, 26, 0.9);
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(24, 33, 54, 0.85);
  --bg-card-hero: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.9) 100%);
  --bg-input: #0d1322;
  --bg-subtle: rgba(255, 255, 255, 0.03);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-focus: #38bdf8;
  --border-hover: rgba(56, 189, 248, 0.35);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-card-hover: 0 10px 30px rgba(0, 0, 0, 0.6);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(37, 99, 235, 0.03) 0%, transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(2, 132, 199, 0.03) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  line-height: 1.55;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

[data-theme="dark"] body {
  background-image: 
    radial-gradient(circle at 10% 15%, rgba(99, 102, 241, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 90% 85%, rgba(6, 182, 212, 0.07) 0%, transparent 50%);
}

/* Custom Sleek Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: 999px;
  transition: background 0.2s;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

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

.main-wrapper {
  flex-direction: column;
  flex: 1;
  min-width: 0;
  display: flex;
  background: var(--bg-main);
}

.content-area {
  flex: 1;
  width: 100%;
  max-width: 1520px;
  margin: 0 auto;
  padding: 2.25rem;
}

/* ==================== SIDEBAR ==================== */
.sidebar {
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-subtle);
  z-index: 40;
  flex-direction: column;
  width: 275px;
  height: 100vh;
  display: flex;
  position: sticky;
  top: 0;
  box-shadow: 2px 0 12px rgba(15, 23, 42, 0.03);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

[data-theme="dark"] .sidebar {
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.4);
}

.sidebar-header {
  border-bottom: 1px solid var(--border-subtle);
  align-items: center;
  gap: 0.9rem;
  padding: 1.5rem 1.6rem;
  display: flex;
  background: var(--bg-sidebar);
}

.brand-logo {
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  justify-content: center;
  align-items: center;
  width: 42px;
  height: 42px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  display: flex;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s;
}

.brand-logo:hover {
  transform: scale(1.05) rotate(-2deg);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.45);
}

.brand-text h2 {
  letter-spacing: -0.03em;
  color: var(--text-primary);
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.2;
}

.brand-text span {
  color: var(--text-muted);
  font-size: 0.68rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: block;
  margin-top: 2px;
}

.sidebar-nav {
  flex-direction: column;
  flex: 1;
  gap: 1.6rem;
  padding: 1.25rem 0.85rem;
  display: flex;
  overflow-y: auto;
}

.nav-section-title {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  padding: 0 0.85rem;
  font-size: 0.68rem;
  font-weight: 700;
}

.nav-items {
  flex-direction: column;
  gap: 0.35rem;
  display: flex;
}

button {
  background: transparent;
  border: none;
  font-family: inherit;
  color: inherit;
  cursor: pointer;
}

.nav-link {
  background: transparent;
  width: 100%;
  border-radius: 10px;
  color: var(--text-secondary);
  cursor: pointer;
  border: 1px solid transparent;
  align-items: center;
  gap: 0.85rem;
  padding: 0.72rem 0.9rem;
  font-size: 0.9rem;
  font-weight: 500;
  text-align: left;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-subtle);
  transform: translateX(2px);
}

.nav-link.active {
  color: var(--primary);
  background: #eff6ff;
  border-color: #bfdbfe;
  font-weight: 600;
}

.nav-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 25%;
  height: 50%;
  width: 3px;
  background: var(--primary);
  border-radius: 0 4px 4px 0;
}

[data-theme="dark"] .nav-link.active {
  color: #38bdf8;
  background: linear-gradient(90deg, rgba(56, 189, 248, 0.12) 0%, rgba(99, 102, 241, 0.06) 100%);
  border-color: rgba(56, 189, 248, 0.25);
}

[data-theme="dark"] .nav-link.active::before {
  background: #38bdf8;
  box-shadow: 0 0 10px #38bdf8;
}

/* ==================== TOP HEADER ==================== */
.top-header {
  background: var(--bg-header);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 30;
  justify-content: space-between;
  align-items: center;
  height: 72px;
  padding: 0 2.25rem;
  display: flex;
  position: sticky;
  top: 0;
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
}

[data-theme="dark"] .top-header {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.company-selector-box {
  align-items: center;
  gap: 1.25rem;
  display: flex;
}

.active-company-badge {
  border: 1px solid var(--border-medium);
  border-radius: 9999px;
  background: var(--bg-subtle);
  align-items: center;
  gap: 0.65rem;
  padding: 0.45rem 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  box-shadow: var(--shadow-sm);
}

.active-company-badge strong {
  color: var(--text-primary) !important;
}

.active-company-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 6px #10b981;
  display: inline-block;
  animation: pulse-subtle 2s infinite ease-in-out;
}

.company-dropdown {
  background: var(--bg-input);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  border-radius: 10px;
  cursor: pointer;
  outline: none;
  padding: 0.55rem 1.1rem;
  font-size: 0.88rem;
  font-family: inherit;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.company-dropdown:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.user-profile-menu {
  align-items: center;
  gap: 1.25rem;
  display: flex;
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 0.45rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
}

.theme-toggle-btn:hover {
  background: var(--bg-card);
  border-color: var(--border-medium);
  transform: translateY(-1px);
}

.theme-icon::before {
  content: '☀️';
  font-size: 0.95rem;
}

[data-theme="dark"] .theme-icon::before {
  content: '🌙';
}

/* ==================== CARDS ==================== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 1.75rem;
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.2s, box-shadow 0.2s;
  position: relative;
  color: var(--text-primary);
}

.card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card-hover);
}

/* Guarantee hero card & requisition cards adapt to light theme */
.card[style*="linear-gradient"] {
  background: var(--bg-card-hero) !important;
  border: 1px solid var(--border-subtle) !important;
  color: var(--text-primary) !important;
}

.card-title {
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  color: var(--text-primary);
}

/* ==================== BUTTONS ==================== */
.btn {
  border-radius: 10px;
  cursor: pointer;
  border: 1px solid transparent;
  justify-content: center;
  align-items: center;
  gap: 0.55rem;
  padding: 0.65rem 1.35rem;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  user-select: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  color: #fff !important;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  transform: translateY(-1.5px);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-secondary {
  color: var(--text-primary) !important;
  border: 1px solid var(--border-medium);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--border-hover);
  background: var(--bg-subtle);
  transform: translateY(-1px);
}

.btn-success {
  color: #fff !important;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  box-shadow: 0 2px 6px rgba(16, 185, 129, 0.25);
}

.btn-success:hover:not(:disabled) {
  transform: translateY(-1.5px);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.btn-danger {
  color: #fff !important;
  background: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
  box-shadow: 0 2px 6px rgba(244, 63, 94, 0.25);
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.8rem;
  border-radius: 8px;
}

/* ==================== FORMS ==================== */
.form-group {
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
  display: flex;
}

.form-label {
  color: var(--text-secondary);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.form-control, .input {
  background: var(--bg-input);
  border: 1px solid var(--border-medium);
  border-radius: 10px;
  color: var(--text-primary);
  outline: none;
  padding: 0.72rem 1rem;
  font-family: inherit;
  font-size: 0.92rem;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.form-control:focus, .input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* ==================== BADGES ==================== */
.badge {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 9999px;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  font-size: 0.72rem;
  font-weight: 700;
  display: inline-flex;
}

.badge-success {
  color: #15803d !important;
  background: #dcfce7 !important;
  border: 1px solid #bbf7d0 !important;
}

.badge-warning {
  color: #b45309 !important;
  background: #fef3c7 !important;
  border: 1px solid #fde68a !important;
}

.badge-danger {
  color: #be123c !important;
  background: #ffe4e6 !important;
  border: 1px solid #fecdd3 !important;
}

.badge-info {
  color: #0369a1 !important;
  background: #e0f2fe !important;
  border: 1px solid #bae6fd !important;
}

[data-theme="dark"] .badge-success {
  color: #34d399 !important;
  background: rgba(16, 185, 129, 0.15) !important;
  border: 1px solid rgba(16, 185, 129, 0.35) !important;
}

[data-theme="dark"] .badge-warning {
  color: #fbbf24 !important;
  background: rgba(245, 158, 11, 0.15) !important;
  border: 1px solid rgba(245, 158, 11, 0.35) !important;
}

[data-theme="dark"] .badge-danger {
  color: #fb7185 !important;
  background: rgba(244, 63, 94, 0.15) !important;
  border: 1px solid rgba(244, 63, 94, 0.35) !important;
}

[data-theme="dark"] .badge-info {
  color: #38bdf8 !important;
  background: rgba(6, 182, 212, 0.15) !important;
  border: 1px solid rgba(6, 182, 212, 0.35) !important;
}

/* ==================== DATA TABLES ==================== */
.table-responsive {
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  width: 100%;
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

.data-table {
  border-collapse: separate;
  border-spacing: 0;
  text-align: left;
  width: 100%;
  font-size: 0.88rem;
}

.data-table th {
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
  background: var(--bg-subtle);
  padding: 0.95rem 1.15rem;
  font-weight: 700;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.data-table td {
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 0.95rem 1.15rem;
  background: var(--bg-card);
  transition: background 0.15s;
}

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

.data-table tr:hover td {
  background: var(--bg-subtle) !important;
}

/* ==================== DROPZONE ==================== */
.dropzone-container {
  border-radius: var(--radius-lg);
  text-align: center;
  cursor: pointer;
  background: var(--bg-card);
  border: 2px dashed #93c5fd;
  padding: 3.5rem 2rem;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
  color: var(--text-primary);
}

.dropzone-container:hover {
  border-color: var(--primary);
  background: #eff6ff;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.1);
  transform: scale(1.005);
}

[data-theme="dark"] .dropzone-container {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.25) 0%, rgba(15, 23, 42, 0.45) 100%);
  border-color: rgba(56, 189, 248, 0.35);
}

[data-theme="dark"] .dropzone-container:hover {
  background: rgba(56, 189, 248, 0.08);
  border-color: #38bdf8;
}

/* ==================== MODAL ==================== */
.modal-backdrop {
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  z-index: 100;
  background: rgba(15, 23, 42, 0.45);
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
  display: flex;
  position: fixed;
  inset: 0;
  animation: fade-in 0.2s ease-out;
}

.modal-content {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 650px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  background: var(--bg-card);
  overflow: hidden;
  animation: modal-appear 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  color: var(--text-primary);
}

[data-theme="dark"] .modal-content {
  background: linear-gradient(165deg, #131c31 0%, #0c1220 100%);
  border-color: var(--border-medium);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 40px rgba(99, 102, 241, 0.2);
}

.modal-header {
  border-bottom: 1px solid var(--border-subtle);
  justify-content: space-between;
  align-items: center;
  padding: 1.35rem 1.75rem;
  display: flex;
  background: var(--bg-subtle);
  color: var(--text-primary);
}

.modal-header button {
  color: var(--text-secondary) !important;
  cursor: pointer;
  transition: color 0.15s;
}

.modal-header button:hover {
  color: var(--text-primary) !important;
}

.modal-body {
  max-height: 80vh;
  padding: 1.75rem;
  overflow-y: auto;
  color: var(--text-primary);
  background: var(--bg-card);
}

.modal-body > div[style*="background: rgba(255, 255, 255, 0.03)"],
.modal-body > div[style*="background:rgba(255,255,255,0.03)"] {
  background: var(--bg-subtle) !important;
  border: 1px solid var(--border-subtle);
}

.modal-footer {
  border-top: 1px solid var(--border-subtle);
  justify-content: flex-end;
  align-items: center;
  gap: 0.85rem;
  padding: 1.25rem 1.75rem;
  display: flex;
  background: var(--bg-subtle);
}

/* Clean style for helper boxes */
div[style*="background: rgba(59, 130, 246, 0.08)"],
div[style*="background:rgba(59, 130, 246, 0.08)"] {
  background: #eff6ff !important;
  border-color: #bfdbfe !important;
  color: #1e40af !important;
}

div[style*="background: rgba(245, 158, 11, 0.08)"],
div[style*="background:rgba(245, 158, 11, 0.08)"] {
  background: #fffbeb !important;
  border-color: #fde68a !important;
  color: #92400e !important;
}

div[style*="background: rgba(52, 211, 153, 0.1)"],
div[style*="background:rgba(52, 211, 153, 0.1)"] {
  background: #ecfdf5 !important;
  border-color: #a7f3d0 !important;
  color: #065f46 !important;
}

div[style*="background: rgba(16, 185, 129, 0.1)"],
div[style*="background:rgba(16, 185, 129, 0.1)"] {
  background: #ecfdf5 !important;
  border-color: #a7f3d0 !important;
}

/* Keyframes */
@keyframes modal-appear {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes pulse-subtle {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.15);
  }
}