/* ===========================
   LicitaRed – Design System
   =========================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  /* Colors */
  --color-bg: #080c14;
  --color-bg-2: #0d1220;
  --color-bg-3: #111827;
  --color-surface: rgba(255, 255, 255, 0.04);
  --color-surface-hover: rgba(255, 255, 255, 0.07);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.15);

  /* Brand Colors */
  --color-primary: #3b82f6;
  --color-primary-dark: #2563eb;
  --color-primary-light: #60a5fa;
  --color-accent: #06b6d4;
  --color-accent-2: #8b5cf6;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;

  /* Text */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0f172a;

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, #3b82f6 0%, #06b6d4 50%, #8b5cf6 100%);
  --gradient-dark: linear-gradient(180deg, #080c14 0%, #0d1220 100%);
  --gradient-card: linear-gradient(135deg, rgba(59,130,246,0.1) 0%, rgba(6,182,212,0.05) 100%);
  --gradient-hero: radial-gradient(ellipse at 20% 50%, rgba(59,130,246,0.15) 0%, transparent 60%), 
                   radial-gradient(ellipse at 80% 20%, rgba(139,92,246,0.1) 0%, transparent 50%);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(59,130,246,0.2);
  --shadow-glow-sm: 0 0 20px rgba(59,130,246,0.15);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s 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(--color-bg);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
input, textarea, select, button { font-family: inherit; }

/* === TYPOGRAPHY === */
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }
p { color: var(--text-secondary); }

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === LAYOUT === */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-sm {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* === NAV === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-4) 0;
  background: rgba(8, 12, 20, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-base);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 800;
  font-size: 1.25rem;
}

.navbar-brand .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-brand);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition-fast);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
}
.nav-link:hover { color: var(--text-primary); background: var(--color-surface-hover); }

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: var(--transition-fast);
}
.btn:hover::before { background: rgba(255,255,255,0.08); }

.btn-primary {
  background: var(--gradient-brand);
  color: white;
  box-shadow: var(--shadow-glow-sm);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--color-border-strong);
}
.btn-outline:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-primary);
  color: var(--color-primary-light);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover { background: var(--color-surface-hover); color: var(--text-primary); }

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.25); }

.btn-lg { padding: var(--space-4) var(--space-8); font-size: 1rem; border-radius: var(--radius-lg); }
.btn-sm { padding: var(--space-2) var(--space-4); font-size: 0.8rem; }
.btn-full { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* === CARDS === */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  backdrop-filter: blur(10px);
  transition: var(--transition-base);
}

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

.card-glow {
  box-shadow: var(--shadow-glow-sm);
  border-color: rgba(59, 130, 246, 0.2);
}

/* === FORMS === */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.form-input, .form-select {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary);
  font-size: 0.95rem;
  width: 100%;
  transition: var(--transition-fast);
  outline: none;
}

.form-input:focus, .form-select:focus {
  border-color: var(--color-primary);
  background: rgba(59, 130, 246, 0.05);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-input::placeholder { color: var(--text-muted); }

.form-input-icon {
  position: relative;
}
.form-input-icon .icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1rem;
}
.form-input-icon .form-input { padding-left: var(--space-10); }

.form-error {
  font-size: 0.82rem;
  color: var(--color-danger);
  display: none;
}
.form-error.visible { display: block; }

/* === DROPZONE === */
.dropzone {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-xl);
  padding: var(--space-12) var(--space-8);
  text-align: center;
  cursor: pointer;
  transition: var(--transition-base);
  background: var(--color-surface);
  position: relative;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--color-primary);
  background: rgba(59, 130, 246, 0.05);
}

.dropzone-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
  display: block;
}

.dropzone-title {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: var(--space-2);
}

.dropzone-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* === FILE LIST === */
.file-list { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-4); }

.file-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: var(--transition-fast);
}

.file-item-icon { font-size: 1.4rem; flex-shrink: 0; }
.file-item-info { flex: 1; min-width: 0; }
.file-item-name { font-size: 0.9rem; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-item-meta { font-size: 0.78rem; color: var(--text-muted); }

/* === ALERTS === */
.alert {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.alert-success { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3); color: #6ee7b7; }
.alert-info { background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.3); color: #93c5fd; }
.alert-warning { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.3); color: #fcd34d; }

/* === BADGE === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.badge-blue { background: rgba(59,130,246,0.15); color: var(--color-primary-light); border: 1px solid rgba(59,130,246,0.3); }
.badge-green { background: rgba(16,185,129,0.15); color: #34d399; border: 1px solid rgba(16,185,129,0.3); }
.badge-yellow { background: rgba(245,158,11,0.15); color: #fbbf24; border: 1px solid rgba(245,158,11,0.3); }
.badge-red { background: rgba(239,68,68,0.15); color: #f87171; border: 1px solid rgba(239,68,68,0.3); }
.badge-purple { background: rgba(139,92,246,0.15); color: #a78bfa; border: 1px solid rgba(139,92,246,0.3); }

/* === SPINNER === */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* === LOADING OVERLAY === */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 12, 20, 0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 999;
  backdrop-filter: blur(8px);
  display: none;
}
.loading-overlay.active { display: flex; }

.loading-card {
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-12) var(--space-16);
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.loading-spinner-lg {
  width: 64px;
  height: 64px;
  border: 4px solid rgba(59,130,246,0.2);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--space-6);
}

/* === STATUS DOTS === */
.status-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.status-dot.green { background: var(--color-success); box-shadow: 0 0 8px var(--color-success); }
.status-dot.yellow { background: var(--color-warning); box-shadow: 0 0 8px var(--color-warning); }
.status-dot.blue { background: var(--color-primary); box-shadow: 0 0 8px var(--color-primary); }
.status-dot.red { background: var(--color-danger); box-shadow: 0 0 8px var(--color-danger); }

/* === DIVIDER === */
.divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}
.divider-text { font-size: 0.8rem; color: var(--text-muted); white-space: nowrap; }

/* === PAGE LAYOUTS === */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  background-image: var(--gradient-hero);
  padding: var(--space-6);
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-lg);
}

.auth-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  font-weight: 800;
  font-size: 1.4rem;
}

.auth-logo .logo-icon {
  width: 44px;
  height: 44px;
  background: var(--gradient-brand);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.auth-title { text-align: center; margin-bottom: var(--space-2); font-size: 1.5rem; }
.auth-subtitle { text-align: center; font-size: 0.9rem; margin-bottom: var(--space-8); }

/* === DASHBOARD LAYOUT === */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background: var(--color-bg-2);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 50;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: var(--space-10);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.sidebar-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-brand);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.sidebar-nav { flex: 1; display: flex; flex-direction: column; gap: var(--space-1); }

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item:hover { background: var(--color-surface); color: var(--text-primary); }
.nav-item.active { background: rgba(59,130,246,0.15); color: var(--color-primary-light); }
.nav-item .nav-icon { font-size: 1.1rem; width: 20px; text-align: center; }

.sidebar-footer {
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
}

.user-avatar {
  width: 36px;
  height: 36px;
  background: var(--gradient-brand);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.user-name { font-size: 0.85rem; font-weight: 600; }
.user-email { font-size: 0.75rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 150px; }

.main-content {
  flex: 1;
  margin-left: 260px;
  padding: var(--space-8);
  min-height: 100vh;
}

.page-header {
  margin-bottom: var(--space-8);
}

.page-title { margin-bottom: var(--space-2); }
.page-subtitle { font-size: 0.95rem; }

/* === TABLES === */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  background: rgba(255,255,255,0.03);
  padding: var(--space-4) var(--space-5);
  text-align: left;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--color-border);
}

.data-table td {
  padding: var(--space-4) var(--space-5);
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--color-surface); }

/* === GRID === */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }

/* === TOAST === */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.9rem;
  font-weight: 500;
  min-width: 280px;
  max-width: 400px;
  animation: toastIn 0.3s ease forwards;
  pointer-events: all;
}

.toast.hiding { animation: toastOut 0.3s ease forwards; }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(100%); }
}

.toast-success { border-left: 4px solid var(--color-success); }
.toast-error { border-left: 4px solid var(--color-danger); }
.toast-info { border-left: 4px solid var(--color-primary); }
.toast-warning { border-left: 4px solid var(--color-warning); }

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border-strong); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .main-content { margin-left: 0; padding: var(--space-6) var(--space-4); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .auth-card { padding: var(--space-6); }
}

/* === ANIMATIONS === */
.fade-in {
  animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* === MISC === */
.text-center { text-align: center; }
.text-right { text-align: right; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.w-full { width: 100%; }
.hidden { display: none !important; }