/* ==========================================================================
   ChatWA - Global Centralized Design System & Token Architecture
   ========================================================================== */

:root {
  --sys-color-background: #F8FAFC;
  --sys-color-surface: #FFFFFF;
  --sys-color-surface-subtle: #E1EDD4;
  --sys-color-surface-inverse: #0E0D15;
  --sys-color-surface-container: #182346;

  --sys-color-primary: #4D52B4;
  --sys-color-primary-hover: #3D5387;
  --sys-color-accent-blue: #4E9CE8;
  --sys-color-accent-teal: #70D6C5;
  --sys-color-accent-mint: #CAE5BC;

  --sys-color-text-primary: #0E0D15;
  --sys-color-text-secondary: #3D5387;
  --sys-color-text-inverse: #FFFFFF;

  --sys-color-border-subtle: rgba(124, 131, 173, 0.25);
  --sys-color-border-strong: #7C83AD;
  --sys-color-tag-muted: #BFA9BA;
  --sys-color-danger: #DC2626;
  --sys-color-danger-bg: #FEE2E2;
  --sys-color-success: #166534;
  --sys-color-success-bg: #DCFCE7;

  --font-display: 'Outfit', sans-serif;
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--sys-color-background);
  color: var(--sys-color-text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Brand Logo --- */
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--sys-color-surface-container);
  letter-spacing: -0.01em;
}

.brand-logo span {
  color: var(--sys-color-accent-teal);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  min-height: 40px;
}

.btn-primary {
  background-color: var(--sys-color-primary);
  color: var(--sys-color-text-inverse);
}

.btn-primary:hover {
  background-color: var(--sys-color-primary-hover);
}

.btn-outline {
  border-color: var(--sys-color-border-subtle);
  color: var(--sys-color-surface-container);
  background-color: transparent;
}

.btn-outline:hover {
  background-color: rgba(77, 82, 180, 0.05);
  border-color: var(--sys-color-primary);
}

.btn-full {
  width: 100%;
}

.btn-logout {
  min-height: 36px;
  padding: 6px 14px;
  font-size: 13px;
}

/* --- Form Controls --- */
.form-group {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
}

.form-label {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--sys-color-surface-container);
}

.form-input {
  width: 100%;
  height: 42px;
  padding: 0 14px;
  border: 1px solid var(--sys-color-border-subtle);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--sys-color-text-primary);
  background-color: var(--sys-color-surface);
  outline: none;
  transition: border-color 0.2s ease;
}

.form-input:focus {
  border-color: var(--sys-color-primary);
  box-shadow: 0 0 0 3px rgba(77, 82, 180, 0.15);
}

/* --- Alerts --- */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 18px;
  text-align: center;
}

.alert-danger {
  background-color: var(--sys-color-danger-bg);
  color: var(--sys-color-danger);
  border: 1px solid rgba(220, 38, 38, 0.2);
}

.alert-success {
  background-color: var(--sys-color-success-bg);
  color: var(--sys-color-success);
  border: 1px solid rgba(22, 101, 52, 0.2);
}

/* --- Public Header (index.php) --- */
.app-header {
  background-color: var(--sys-color-surface);
  border-bottom: 1px solid var(--sys-color-border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-weight: 500;
  color: var(--sys-color-text-secondary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* --- Authenticated Topbar (header.php) --- */
.app-topbar {
  background-color: var(--sys-color-surface);
  border-bottom: 1px solid var(--sys-color-border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 36px;
}

.app-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-item {
  position: relative;
}

.nav-item .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  border-radius: 6px;
  font-weight: 500;
  color: var(--sys-color-text-secondary);
  font-size: 13.5px;
  transition: all 0.2s ease;
}

.nav-item .nav-link:hover,
.nav-item.active .nav-link {
  color: var(--sys-color-primary);
  background-color: rgba(77, 82, 180, 0.08);
}

.nav-item .caret {
  font-size: 10px;
  margin-left: 2px;
}

/* Dropdown Sub-menu */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 220px;
  background-color: var(--sys-color-surface);
  border: 1px solid var(--sys-color-border-subtle);
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(24, 35, 70, 0.08);
  padding: 6px 0;
  margin-top: 4px;
  z-index: 200;
}

.dropdown-item {
  display: block;
  padding: 9px 16px;
  font-size: 13px;
  color: var(--sys-color-surface-container);
  transition: background-color 0.15s ease;
}

.dropdown-item:hover {
  background-color: rgba(77, 82, 180, 0.08);
  color: var(--sys-color-primary);
}

.nav-item.has-dropdown:hover .dropdown-menu {
  display: block;
}

/* Topbar Right Profile */
.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

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

.user-profile-badge .avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background-color: var(--sys-color-surface-container);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 13px;
}

.user-meta {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--sys-color-surface-container);
  line-height: 1.2;
}

.user-role {
  font-size: 10px;
  font-weight: 600;
  color: var(--sys-color-primary);
  letter-spacing: 0.04em;
}

/* --- Main Layout Container --- */
.app-main-content {
  flex: 1;
}

/* --- Internal Footer --- */
.app-internal-footer {
  background-color: var(--sys-color-surface);
  border-top: 1px solid var(--sys-color-border-subtle);
  padding: 14px 20px;
  font-size: 12px;
  color: var(--sys-color-text-secondary);
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* --- Dashboard Specific Styles --- */
.dashboard-container {
  padding-top: 30px;
  padding-bottom: 40px;
}

.welcome-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
}

.page-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--sys-color-surface-container);
}

.page-subtitle {
  color: var(--sys-color-text-secondary);
  font-size: 14px;
  margin-top: 4px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.stat-card {
  background-color: var(--sys-color-surface);
  border: 1px solid var(--sys-color-border-subtle);
  border-radius: 10px;
  padding: 22px;
}

.stat-label {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--sys-color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  color: var(--sys-color-surface-container);
  margin: 6px 0;
}

.stat-meta {
  font-size: 12px;
  color: var(--sys-color-text-secondary);
}

.dashboard-split {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

.dashboard-panel {
  background-color: var(--sys-color-surface);
  border: 1px solid var(--sys-color-border-subtle);
  border-radius: 10px;
  overflow: hidden;
}

.panel-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--sys-color-border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.panel-header h3 {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  color: var(--sys-color-surface-container);
}

.panel-link {
  font-size: 13px;
  color: var(--sys-color-primary);
  font-weight: 500;
}

.panel-content {
  padding: 20px;
}

.thread-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.thread-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--sys-color-border-subtle);
  transition: background-color 0.15s ease;
}

.thread-item:hover {
  background-color: rgba(77, 82, 180, 0.04);
}

.thread-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background-color: var(--sys-color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.thread-info {
  flex: 1;
}

.thread-title {
  display: flex;
  justify-content: space-between;
  font-size: 13.5px;
  margin-bottom: 3px;
}

.thread-time {
  font-size: 11px;
  color: var(--sys-color-text-secondary);
}

.thread-snippet {
  font-size: 12.5px;
  color: var(--sys-color-text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 400px;
}

.launchpad-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.launchpad-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  border-radius: 8px;
  border: 1px solid var(--sys-color-border-subtle);
  transition: all 0.2s ease;
}

.launchpad-item:hover {
  border-color: var(--sys-color-primary);
  box-shadow: 0 4px 12px rgba(24, 35, 70, 0.05);
}

.launchpad-icon {
  font-size: 22px;
}

.launchpad-item strong {
  font-size: 13.5px;
  display: block;
}

.launchpad-item p {
  font-size: 12px;
  color: var(--sys-color-text-secondary);
}

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--sys-color-text-secondary);
  font-size: 13px;
}

/* --- Auth Pages --- */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  background-color: var(--sys-color-surface);
  border: 1px solid var(--sys-color-border-subtle);
  border-radius: 12px;
  width: 100%;
  max-width: 400px;
  padding: 36px 28px;
  box-shadow: 0 10px 30px rgba(24, 35, 70, 0.05);
}

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

.auth-header p {
  color: var(--sys-color-text-secondary);
  font-size: 13.5px;
  margin-top: 4px;
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .dashboard-split {
    grid-template-columns: 1fr;
  }
  .app-nav {
    display: none;
  }
}