/* ========== RESET & BASE ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background-color: #0f172a;
  color: #e2e8f0;
  line-height: 1.6;
}

/* ========== COLORS & THEME ========== */
:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --text-primary: #e2e8f0;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border: #334155;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

p { margin-bottom: 1rem; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-hover);
}

/* ========== LAYOUT: LOGIN ========== */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  padding: 1rem;
}

.login-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 25px rgba(0, 0, 0, 0.3);
}

.login-card h1 {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 1.75rem;
}

.login-card .subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

/* ========== LAYOUT: MAIN APP ========== */
.app-container {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.sidebar {
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 1.5rem 0;
}

.sidebar-header {
  padding: 0 1.5rem 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}

.sidebar-header h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.sidebar-header .user-info {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.nav-items {
  list-style: none;
  flex: 1;
}

.nav-item {
  padding: 0;
  margin: 0.5rem 0.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.95rem;
}

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

.nav-link.active {
  background: var(--accent);
  color: white;
}

.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 0.5rem;
}

.sidebar-footer button {
  flex: 1;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header h1 {
  font-size: 1.5rem;
  margin: 0;
}

.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 2rem;
  background: var(--bg-primary);
}

/* ========== FORMS & INPUTS ========== */
.form-group {
  margin-bottom: 1.25rem;
}

label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="url"],
select,
textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="url"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

select {
  cursor: pointer;
}

textarea {
  resize: vertical;
  min-height: 120px;
  font-family: 'Monaco', 'Courier New', monospace;
}

.char-counter {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.char-counter.warning {
  color: var(--warning);
}

.char-counter.error {
  color: var(--danger);
}

/* ========== BUTTONS ========== */
button {
  padding: 0.75rem 1.25rem;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(99, 102, 241, 0.3);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

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

.btn-secondary:hover {
  background: #475569;
  border-color: var(--accent);
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-success {
  background: var(--success);
  color: white;
}

.btn-success:hover {
  background: #059669;
}

.btn-small {
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
}

.btn-icon {
  padding: 0.5rem;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.button-group {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.button-group button {
  flex: 1;
}

/* ========== BADGES & PILLS ========== */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge-primary {
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
}

.badge-success {
  background: rgba(16, 185, 129, 0.2);
  color: #6ee7b7;
}

.badge-warning {
  background: rgba(245, 158, 11, 0.2);
  color: #fcd34d;
}

.badge-danger {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
}

.badge-gray {
  background: rgba(148, 163, 184, 0.2);
  color: #cbd5e1;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.875rem;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
}

.chip-close {
  cursor: pointer;
  color: var(--text-muted);
  font-weight: bold;
}

.chip-close:hover {
  color: var(--danger);
}

/* ========== CARDS & SECTIONS ========== */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.card-header h2 {
  margin: 0;
}

.section {
  margin-bottom: 2rem;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ========== WIZARD ========== */
.wizard {
  max-width: 900px;
}

.wizard-header {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.wizard-step {
  flex: 1;
  position: relative;
}

.step-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.wizard-step.active .step-indicator {
  background: var(--accent);
  color: white;
}

.wizard-step.completed .step-indicator {
  background: var(--success);
  color: white;
}

.step-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  text-align: center;
}

.wizard-step.active .step-label {
  color: var(--text-primary);
  font-weight: 600;
}

.step-connector {
  position: absolute;
  top: 20px;
  left: 50%;
  width: 100%;
  height: 2px;
  background: var(--bg-tertiary);
  transform: translateX(-50%);
  z-index: -1;
}

.wizard-step.completed .step-connector {
  background: var(--success);
}

.wizard-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
}

.wizard-footer {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
}

.wizard-footer button {
  flex: 0 1 auto;
}

/* ========== TABLES ========== */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

thead {
  background: var(--bg-tertiary);
  border-bottom: 2px solid var(--border);
}

th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
}

td {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
}

tr:hover {
  background: rgba(99, 102, 241, 0.05);
}

.table-wrapper {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.table-wrapper table {
  margin: 0;
}

/* ========== MODALS ========== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.2s;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
  animation: slideUp 0.3s;
}

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h2 {
  margin: 0;
  flex: 1;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
}

/* ========== ALERTS ========== */
.alert {
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  border-left: 4px solid;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.alert-info {
  background: rgba(59, 130, 246, 0.1);
  border-left-color: var(--info);
  color: #bfdbfe;
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border-left-color: var(--success);
  color: #86efac;
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border-left-color: var(--warning);
  color: #fcd34d;
}

.alert-danger {
  background: rgba(239, 68, 68, 0.1);
  border-left-color: var(--danger);
  color: #fca5a5;
}

.alert-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.alert-message {
  font-size: 0.9rem;
}

/* ========== LOADING & SPINNERS ========== */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(99, 102, 241, 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-lg {
  width: 40px;
  height: 40px;
  border-width: 3px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-text {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ========== SEARCH & DROPDOWN ========== */
.search-input-wrapper {
  position: relative;
  margin-bottom: 1.25rem;
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  padding-left: 2.5rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23cbd5e1'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 0.75rem center;
  background-size: 18px;
}

.dropdown-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 8px 8px;
  list-style: none;
  max-height: 250px;
  overflow-y: auto;
  z-index: 100;
}

.dropdown-item {
  padding: 0.75rem 1rem;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}

.dropdown-item:hover,
.dropdown-item.selected {
  background: var(--bg-tertiary);
  color: var(--accent);
}

/* ========== IMAGE UPLOAD AREA ========== */
.image-preview {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 16 / 9;
  background: var(--bg-tertiary);
  border: 2px dashed var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 1rem 0;
  overflow: hidden;
}

.image-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-placeholder {
  color: var(--text-muted);
  text-align: center;
}

/* ========== EMPTY STATE ========== */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.empty-state h3 {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    max-height: 70px;
    flex-direction: row;
    align-items: center;
    overflow-x: auto;
  }

  .sidebar-header {
    padding: 0 1rem;
    border-bottom: none;
    margin-bottom: 0;
    border-right: 1px solid var(--border);
  }

  .nav-items {
    display: flex;
    flex: 1;
    overflow-x: auto;
  }

  .nav-item {
    margin: 0;
    white-space: nowrap;
  }

  .sidebar-footer {
    padding: 0 1rem;
    border-left: 1px solid var(--border);
    border-top: none;
  }

  .content-area {
    padding: 1rem;
  }

  .wizard-content {
    padding: 1.5rem 1rem;
  }

  .wizard-footer {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .wizard-footer button {
    flex: 1 1 calc(50% - 0.25rem);
  }

  .modal {
    width: 95%;
    max-width: none;
  }

  .button-group {
    flex-direction: column;
  }

  .button-group button {
    width: 100%;
  }

  table {
    font-size: 0.85rem;
  }

  th, td {
    padding: 0.75rem 0.5rem;
  }

  .login-card {
    padding: 1.5rem;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 14px;
  }

  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
  h3 { font-size: 1.1rem; }

  .wizard-header {
    flex-wrap: wrap;
  }

  .wizard-step {
    flex: 0 0 calc(50% - 0.25rem);
  }

  .step-connector {
    width: 50%;
  }

  button {
    padding: 0.65rem 1rem;
    font-size: 0.9rem;
  }

  .sidebar-header h2 {
    font-size: 1rem;
  }

  .card {
    padding: 1rem;
  }

  .modal-body {
    padding: 1rem;
  }
}

/* ========== ANIMATIONS ========== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.slide-in {
  animation: slideIn 0.3s;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #64748b;
}