/*
 \public\css\style.css
  All colors use CSS variables from theme.css
  Dark = default, Light = Porcelain
*/

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

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-root);
  min-height: 100vh;
  color: var(--text-primary);
  transition: background 0.35s ease, color 0.25s ease;
}

/* ============================================================================
   TOP NAVIGATION
   ============================================================================ */
.topnav {
  background: var(--bg-nav);
  backdrop-filter: var(--nav-blur);
  -webkit-backdrop-filter: var(--nav-blur);
  padding: 16px 5%;
  box-shadow: var(--shadow-nav);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  transition: background 0.35s ease;
}

.logo {
  font-size: 1.5em;
  font-weight: 800;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 16px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  padding: 8px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-weight: 600;
  transition: background 0.25s;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-grad);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9em;
  color: white;
  flex-shrink: 0;
}

.nav-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

/* ============================================================================
   BUTTONS
   ============================================================================ */
.btn {
  padding: 10px 24px;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.9em;
  font-family: inherit;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
  filter: brightness(1.08);
}

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

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

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

/* ============================================================================
   CONTAINER
   ============================================================================ */
.container {
  max-width: 1400px;
  margin: 30px auto;
  padding: 0 5%;
}

/* ============================================================================
   STATS
   ============================================================================ */
.stats-grid, .stats-row, .ml-cards, .data-grid {
  display: grid;
  gap: 20px;
}

.stats-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-bottom: 40px;
}

.stat-card, .ml-card, .data-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  padding: 28px;
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  transition: all 0.3s;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 20px;
}

.stat-card:hover, .ml-card:hover, .data-card:hover {
  transform: translateY(-5px);
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
}

.stat-icon {
  font-size: 2.5em;
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-grad);
  border-radius: 14px;
  flex-shrink: 0;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.stat-info h3 {
  font-size: 2.2em;
  margin-bottom: 5px;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.stat-info p {
  color: var(--text-secondary);
  font-size: 0.95em;
  font-weight: 500;
}

/* ============================================================================
   SECTION HEADERS
   ============================================================================ */
.section-header, .chart-header, .ml-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}

.section-header h2, .chart-header h3, .ml-header h3 {
  font-size: 1.8em;
  color: var(--text-heading);
  font-weight: 700;
}

/* ============================================================================
   PROJECT CARDS
   ============================================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  margin-bottom: 30px;
}

.project-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: all 0.3s;
  animation: slideUp 0.5s ease-out;
  position: relative;
}

.project-card:hover {
  transform: translateY(-8px);
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.project-icon {
  font-size: 2.5em;
  background: var(--accent-grad);
  padding: 16px;
  border-radius: 12px;
  display: inline-flex;
  line-height: 1;
}

.project-status {
  padding: 6px 14px;
  border-radius: var(--radius-badge);
  font-size: 0.75em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-online {
  background: rgba(16, 185, 129, 0.15);
  color: var(--status-online);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-offline {
  background: rgba(239, 68, 68, 0.12);
  color: var(--status-offline);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.project-name {
  font-size: 1.4em;
  font-weight: 700;
  margin: 12px 0 8px;
  color: var(--text-heading);
}

.project-id {
  color: var(--text-muted);
  font-size: 0.85em;
  margin-bottom: 16px;
  font-family: 'DM Mono', 'Courier New', monospace;
}

.project-stats {
  display: flex;
  gap: 16px;
  margin: 20px 0;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.project-stat {
  flex: 1;
  text-align: center;
}

.project-stat-value {
  font-size: 1.8em;
  font-weight: 800;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 4px;
}

.project-stat-label {
  font-size: 0.7em;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.project-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 20px;
}

.project-btn {
  padding: 12px;
  border-radius: 10px;
  border: none;
  font-weight: 700;
  font-size: 0.9em;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: inherit;
}

.project-btn-control {
  background: var(--accent-grad);
  color: white;
  box-shadow: var(--shadow-btn);
}

.project-btn-control:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
}

.project-btn-monitor {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.project-btn-monitor:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.project-menu-btn {
  background: var(--bg-badge);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  grid-column: 1 / -1;
}

.project-menu-btn:hover {
  background: var(--accent-subtle);
  border-color: var(--border-hover);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ============================================================================
   EMPTY STATE
   ============================================================================ */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 1.1em;
  background: var(--bg-empty);
  border-radius: var(--radius-card);
  border: 2px dashed var(--border);
}

/* ============================================================================
   MODAL
   ============================================================================ */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(6px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

[data-theme="light"] .modal {
  background: rgba(15, 23, 42, 0.40);
}

.modal.show,
.modal.active {
  display: flex;
}

.modal-content {
  background: var(--bg-modal);
  border-radius: 20px;
  padding: 32px;
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border-modal);
  box-shadow: var(--shadow-modal);
  transition: background 0.3s ease;
  animation: modalIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(-20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  font-size: 1.5em;
  color: var(--text-heading);
  font-weight: 700;
}

.close-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 1.4em;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-btn:hover {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
  color: var(--color-danger);
  transform: rotate(90deg);
}

/* ============================================================================
   FORMS
   ============================================================================ */
.form-container { padding: 40px 30px; }
.form-section { display: none; }
.form-section.active { display: block; animation: fadeIn 0.3s; }

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
  color: var(--text-label);
  font-size: 0.92em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  color: var(--text-primary);
  font-size: 0.95em;
  font-family: inherit;
  transition: all 0.25s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-placeholder);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--border-focus);
  background: var(--bg-input-focus);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

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

.form-group select {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: var(--select-arrow);
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-group select option {
  background: var(--bg-modal);
  color: var(--text-primary);
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  cursor: pointer;
  margin: 0;
}

.checkbox-group label {
  margin: 0;
  cursor: pointer;
  color: var(--text-label);
}

/* ============================================================================
   CODE BLOCK
   ============================================================================ */
.code-block {
  position: relative;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  padding-top: 50px;
  margin: 12px 0;
}

.code-block pre {
  margin: 0;
  color: var(--text-code);
  font-family: 'DM Mono', 'Courier New', monospace;
  font-size: 0.9em;
  line-height: 1.65;
  overflow-x: auto;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.copy-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--accent-grad);
  color: white;
  border: none;
  padding: 7px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.82em;
  font-weight: 700;
  transition: all 0.25s ease;
  z-index: 10;
}

.copy-btn:hover {
  filter: brightness(1.1);
  transform: scale(1.04);
}

.copy-btn.copied {
  background: linear-gradient(135deg, #22c55e, #16a34a);
}

/* ============================================================================
   TABS
   ============================================================================ */
.tabs {
  display: flex;
  border-bottom: 2px solid var(--border);
}

.tab {
  flex: 1;
  padding: 18px;
  text-align: center;
  cursor: pointer;
  background: transparent;
  border: none;
  font-size: 1em;
  font-weight: 700;
  color: var(--text-muted);
  font-family: inherit;
  transition: all 0.25s ease;
}

.tab:hover { color: var(--text-secondary); }

.tab.active {
  color: var(--accent);
  border-bottom: 3px solid var(--accent);
  margin-bottom: -2px;
}

/* ============================================================================
   MESSAGES
   ============================================================================ */
.message {
  padding: 14px 16px;
  border-radius: 10px;
  margin-bottom: 20px;
  display: none;
  animation: slideDown 0.3s;
  font-weight: 500;
  font-size: 0.92em;
}

.message.show { display: block; }

.message.error {
  background: rgba(239, 68, 68, 0.10);
  color: var(--color-danger);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.message.success {
  background: rgba(34, 197, 94, 0.10);
  color: var(--color-success);
  border: 1px solid rgba(34, 197, 94, 0.25);
}

/* Password strength */
.password-strength { margin-top: 5px; font-size: 0.85em; font-weight: 600; }
.strength-weak   { color: var(--color-danger); }
.strength-medium { color: var(--color-warning); }
.strength-strong { color: var(--color-success); }

/* ============================================================================
   TABLES
   ============================================================================ */
.data-table { width: 100%; border-collapse: collapse; }

.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  background: var(--bg-badge);
  font-weight: 700;
  color: var(--text-secondary);
  font-size: 0.82em;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table td {
  color: var(--text-primary);
  font-size: 0.92em;
}

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

/* ============================================================================
   ML PREDICTIONS
   ============================================================================ */
.prediction-badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 12px;
  font-size: 0.85em;
  font-weight: 600;
  margin-top: 10px;
}

.prediction-high   { background: rgba(239, 68, 68, 0.15);  color: var(--color-danger); }
.prediction-normal { background: rgba(34, 197, 94, 0.15);  color: var(--color-success); }
.prediction-low    { background: rgba(59, 130, 246, 0.15); color: var(--accent); }

/* ============================================================================
   EXPORT BUTTONS
   ============================================================================ */
.export-buttons {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 15px;
}

/* ============================================================================
   LOADING & SPINNER
   ============================================================================ */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
}

.spinner {
  border: 3px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 0.9s linear infinite;
  margin: 20px auto;
}

/* ============================================================================
   HEADER SECTION (monitor page)
   ============================================================================ */
.header-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 26px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(8px);
}

.header-section h1 {
  color: var(--text-heading);
  margin-bottom: 14px;
  font-size: 1.9em;
  font-weight: 700;
}

.device-info {
  color: var(--text-secondary);
  font-size: 0.9em;
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-badge);
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.status-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

/* ============================================================================
   CHART / DATA SECTIONS
   ============================================================================ */
.chart-section,
.export-section,
.ml-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 26px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(8px);
  transition: background 0.3s ease;
}

.export-section h3,
.chart-section h3,
.ml-section h3 {
  color: var(--text-heading);
  font-size: 1.3em;
  font-weight: 700;
  margin-bottom: 8px;
}

.export-section p {
  color: var(--text-secondary);
  font-size: 0.92em;
}

/* Chart controls */
.chart-controls {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.chart-controls select,
.chart-controls button {
  padding: 9px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.88em;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s ease;
  appearance: none;
  background-image: var(--select-arrow);
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}

.chart-controls select:focus,
.chart-controls button:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

.chart-controls select option {
  background: var(--bg-modal);
  color: var(--text-primary);
}

/* ============================================================================
   ANIMATIONS
   ============================================================================ */
@keyframes spin      { to { transform: rotate(360deg); } }
@keyframes slideUp   { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn    { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

/* ============================================================================
   SCROLLBARS
   ============================================================================ */
.modal-content::-webkit-scrollbar,
.code-block::-webkit-scrollbar { width: 8px; height: 8px; }

.modal-content::-webkit-scrollbar-track,
.code-block::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
  border-radius: 4px;
}

.modal-content::-webkit-scrollbar-thumb,
.code-block::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}

.modal-content::-webkit-scrollbar-thumb:hover,
.code-block::-webkit-scrollbar-thumb:hover {
  filter: brightness(1.2);
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */
@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid, .data-grid, .stats-row { grid-template-columns: 1fr; }
  .user-info span { display: none; }
  .section-header, .chart-header, .ml-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }
  .project-actions { grid-template-columns: 1fr; }
  .modal-content { padding: 24px; }
  .stat-icon { width: 60px; height: 60px; font-size: 2em; }
  .stat-info h3 { font-size: 1.8em; }
  .device-info { gap: 10px; }
  .info-item { font-size: 0.82em; padding: 5px 10px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  body { padding: 0; }
  .container { border-radius: 0; padding: 20px 4%; margin: 0; }
  .form-container { padding: 30px 20px; }
}