/* ===================================================================
   Multi-Channel Smart API - Pure Dark Theme
   Black Background, White Text, Minimal Design
   =================================================================== */

:root {
  /* Colors - Pure Dark Theme */
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-tertiary: #141414;
  --bg-code: #1a1a1a;

  --text-primary: #ffffff;
  --text-secondary: #888888;
  --text-muted: #666666;

  --border-primary: #1a1a1a;
  --border-secondary: #2a2a2a;

  --accent: #ffffff;
  --success: #00ff00;
  --error: #ff0000;
  --warning: #ffff00;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Border Radius - Minimal (almost square) */
  --radius: 2px;

  /* Typography */
  --font-mono: 'SF Mono', 'Monaco', 'Courier New', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;

  /* Transitions */
  --transition: all 0.15s ease;
}

/* ===================================================================
   Reset & Base
   =================================================================== */

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

html,
body {
  height: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===================================================================
   Typography
   =================================================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 20px;
}

h3 {
  font-size: 16px;
}

h4 {
  font-size: 14px;
}

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--text-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  opacity: 0.7;
}

code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: var(--radius);
}

/* ===================================================================
   Layout
   =================================================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ===================================================================
   Header
   =================================================================== */

.header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 56px;
  padding: 0 var(--spacing-lg);
}

.logo {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  padding: var(--spacing-sm) 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  border-bottom-color: var(--text-primary);
}

/* ===================================================================
   Buttons
   =================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--accent);
  color: var(--bg-primary);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn:hover {
  opacity: 0.8;
}

.btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--border-secondary);
}

.btn-outline:hover {
  background: var(--bg-tertiary);
}

.btn-ghost {
  background: transparent;
  border: none;
  color: var(--text-secondary);
}

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

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 11px;
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
}

/* Google Button */
.btn-google {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-secondary);
  text-transform: none;
  letter-spacing: 0;
}

.btn-google:hover {
  background: var(--bg-secondary);
}

/* ===================================================================
   Cards
   =================================================================== */

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.card-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-primary);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}



.card-minimal {
  background: transparent;
  border: 1px solid var(--border-primary);
  padding: var(--spacing-md);
}

/* ===================================================================
   Forms
   =================================================================== */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-sans);
  transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-secondary);
}

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

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

.form-hint {
  margin-top: var(--spacing-xs);
  font-size: 11px;
  color: var(--text-muted);
}

/* ===================================================================
   Grid
   =================================================================== */

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ===================================================================
   Stats Card
   =================================================================== */

.stat-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
}

.stat-label {
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-sm);
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.stat-unit {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 400;
}

/* ===================================================================
   Table
   =================================================================== */

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

.table th,
.table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border-primary);
  font-size: 13px;
}

.table th {
  background: var(--bg-tertiary);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.table tr:hover {
  background: var(--bg-tertiary);
}

.table-minimal th {
  background: transparent;
}

/* ===================================================================
   Badge
   =================================================================== */

.badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: var(--radius);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1;
}

.badge-active {
  background: rgba(0, 255, 0, 0.1);
  color: var(--success);
  border: 1px solid var(--success);
}

.badge-inactive {
  background: rgba(255, 0, 0, 0.1);
  color: var(--error);
  border: 1px solid var(--error);
}

.badge-pending {
  background: rgba(255, 255, 0, 0.1);
  color: var(--warning);
  border: 1px solid var(--warning);
}

/* ===================================================================
   Alert
   =================================================================== */

.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius);
  margin-bottom: var(--spacing-md);
  font-size: 13px;
  border: 1px solid;
}

.alert-success {
  background: rgba(0, 255, 0, 0.05);
  color: var(--success);
  border-color: var(--success);
}

.alert-error {
  background: rgba(255, 0, 0, 0.05);
  color: var(--error);
  border-color: var(--error);
}

.alert-warning {
  background: rgba(255, 255, 0, 0.05);
  color: var(--warning);
  border-color: var(--warning);
}

.alert-info {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-secondary);
}

/* ===================================================================
   Code Block (Special UI for copyable content)
   =================================================================== */

.code-block {
  background: var(--bg-code);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
  position: relative;
  overflow-x: auto;
}

.code-block pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: #00ff00;
  /* Matrix green for code */
}

.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border-secondary);
}

.code-block-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.copy-btn {
  padding: 4px 12px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: var(--transition);
}

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

.copy-btn.copied {
  background: var(--success);
  color: var(--bg-primary);
  border-color: var(--success);
}

/* ===================================================================
   Auth Pages
   =================================================================== */

.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.auth-box {
  width: 100%;
  max-width: 400px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius);
  padding: var(--spacing-2xl);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.auth-header h1 {
  margin-bottom: var(--spacing-sm);
}

.auth-header p {
  color: var(--text-secondary);
  font-size: 13px;
  margin: 0;
}

.auth-divider {
  display: flex;
  align-items: center;
  margin: var(--spacing-lg) 0;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-primary);
}

.auth-divider::before {
  margin-right: var(--spacing-md);
}

.auth-divider::after {
  margin-left: var(--spacing-md);
}

.auth-footer {
  text-align: center;
  margin-top: var(--spacing-xl);
  color: var(--text-secondary);
  font-size: 13px;
}

/* ===================================================================
   Channel Selector
   =================================================================== */

.channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-md);
}

.channel-card {
  background: var(--bg-tertiary);
  border: 2px solid var(--border-primary);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

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

.channel-card.active {
  border-color: var(--accent);
  background: var(--bg-secondary);
}

.channel-card.disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.channel-icon {
  font-size: 32px;
  margin-bottom: var(--spacing-sm);
}

.channel-name {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.channel-status {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===================================================================
   Profile
   =================================================================== */

.profile-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius);
}

.profile-avatar {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius);
}

.profile-avatar svg {
  width: 32px;
  height: 32px;
}

.profile-info h3 {
  margin-bottom: var(--spacing-xs);
}

.profile-email {
  color: var(--text-secondary);
  font-size: 13px;
}

/* ===================================================================
   Utilities
   =================================================================== */

.hidden {
  display: none !important;
}

.block {
  display: block;
}

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-center {
  justify-content: center;
  align-items: center;
}

.flex-between {
  justify-content: space-between;
}

.gap-xs {
  gap: var(--spacing-xs);
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

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

/* ===================================================================
   Logo Protection (Unselectable & Unclickable)
   =================================================================== */

.site-logo,
.logo img,
.auth-header img {
  pointer-events: none !important;
  user-select: none !important;
  -webkit-user-select: none !important;
  -webkit-user-drag: none !important;
  -moz-user-select: none !important;
  -ms-user-select: none !important;
}

/* ===================================================================
   Custom Modal Styles
   =================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.modal-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius);
  padding: 0;
  width: 400px;
  max-width: 90%;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
  animation: modalFadeIn 0.2s ease;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-header {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-secondary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.modal-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.modal-body {
  padding: var(--spacing-lg);
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.5;
}

.modal-footer {
  display: flex;
  border-top: 1px solid var(--border-secondary);
}

.modal-btn {
  flex: 1;
  padding: 12px;
  background: transparent;
  border: none;
  border-right: 1px solid var(--border-secondary);
  color: var(--text-primary);
  font-size: 13px;
  cursor: pointer;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: background 0.2s;
}

.modal-btn:last-child {
  border-right: none;
}

.modal-btn:hover {
  background: var(--bg-tertiary);
}

.modal-btn.danger {
  background: var(--bg-secondary);
  color: var(--error);
  font-weight: 700;
}

.modal-btn.danger:hover {
  background: rgba(255, 0, 0, 0.15);
}

.modal-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.modal-input-container {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
}

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

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.w-full {
  width: 100%;
}

/* ===================================================================
   Loading
   =================================================================== */

.loader {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border-primary);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin: var(--spacing-xl) auto;
}

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

/* ===================================================================
   Responsive
   =================================================================== */

@media (max-width: 768px) {
  .header-content {
    padding: 0 var(--spacing-md);
  }

  .nav {
    gap: var(--spacing-md);
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .stat-value {
    font-size: 24px;
  }

  .profile-card {
    flex-direction: column;
    text-align: center;
  }
}