/* ==========================================================================
   WS-GATEWAY: ULTRA-SLEEK MONOCHROME DESIGN SYSTEM
   Modern Black & White High-Contrast UI/UX for Standalone WhatsApp Microservice
   ========================================================================== */

/* --- CSS Variables & Theming Tokens --- */
:root, [data-theme="dark"] {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;

  /* Pure Pitch Black & Onyx Dark Palette */
  --bg-app: #000000;
  --bg-surface: #09090b;
  --bg-card: #0e0e11;
  --bg-card-subtle: #141418;
  --bg-card-hover: #1a1a20;
  --bg-input: #08080a;
  --bg-elevated: #18181c;
  --bg-code: #050507;

  /* Borders & Hairlines */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.16);
  --border-strong: rgba(255, 255, 255, 0.28);
  --border-focus: #ffffff;

  /* Typography Gradients & Weights */
  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --text-faint: #52525b;

  /* Monochromatic High-Contrast Accents */
  --accent-contrast: #ffffff;
  --accent-contrast-text: #000000;
  --accent-subtle: rgba(255, 255, 255, 0.06);
  --accent-hover: rgba(255, 255, 255, 0.12);
  --accent-glow: rgba(255, 255, 255, 0.18);

  /* Status Identifiers */
  --status-connected-bg: #ffffff;
  --status-connected-text: #000000;
  --status-connected-dot: #ffffff;
  --status-connecting-bg: #1c1c21;
  --status-connecting-text: #e4e4e7;
  --status-disconnected-bg: #18181b;
  --status-disconnected-text: #a1a1aa;

  --danger-color: #f87171;
  --danger-bg: rgba(248, 113, 113, 0.08);
  --danger-border: rgba(248, 113, 113, 0.22);

  /* Shadows & Elevations */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.9);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.75), 0 0 0 1px var(--border-subtle);
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.9), 0 0 0 1px var(--border-subtle);
  --shadow-glow: 0 0 24px rgba(255, 255, 255, 0.12);

  /* Metrics & Radii */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme: Architectural Minimalist Monochrome */
[data-theme="light"] {
  --bg-app: #fbfbfb;
  --bg-surface: #f4f4f5;
  --bg-card: #ffffff;
  --bg-card-subtle: #f4f4f5;
  --bg-card-hover: #ececed;
  --bg-input: #ffffff;
  --bg-elevated: #ffffff;
  --bg-code: #0f1013;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-medium: rgba(0, 0, 0, 0.16);
  --border-strong: rgba(0, 0, 0, 0.32);
  --border-focus: #000000;

  --text-primary: #09090b;
  --text-secondary: #52525b;
  --text-muted: #71717a;
  --text-faint: #a1a1aa;

  --accent-contrast: #000000;
  --accent-contrast-text: #ffffff;
  --accent-subtle: rgba(0, 0, 0, 0.05);
  --accent-hover: rgba(0, 0, 0, 0.09);
  --accent-glow: rgba(0, 0, 0, 0.12);

  --status-connected-bg: #000000;
  --status-connected-text: #ffffff;
  --status-connected-dot: #000000;
  --status-connecting-bg: #e4e4e7;
  --status-connecting-text: #18181b;
  --status-disconnected-bg: #e4e4e7;
  --status-disconnected-text: #52525b;

  --danger-color: #dc2626;
  --danger-bg: rgba(220, 38, 38, 0.06);
  --danger-border: rgba(220, 38, 38, 0.2);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06), 0 0 0 1px var(--border-subtle);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08), 0 0 0 1px var(--border-subtle);
  --shadow-glow: 0 0 20px rgba(0, 0, 0, 0.08);
}

/* --- Base & Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 14px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Subtle architectural dot grid texture in background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  background-image: radial-gradient(var(--border-subtle) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.35;
  z-index: 1;
}

/* --- Red Matrix Digital Rain Canvas & Vignette --- */
.matrix-rain-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.42;
}

[data-theme="light"] .matrix-rain-canvas {
  opacity: 0.16;
}

.matrix-vignette {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.15) 30%, rgba(0, 0, 0, 0.85) 100%);
  z-index: 1;
}

[data-theme="light"] .matrix-vignette {
  background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.2) 30%, rgba(240, 240, 245, 0.85) 100%);
}

.app-layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 2;
}

/* --- Top Navigation Header --- */
.top-nav {
  height: 64px;
  background-color: rgba(14, 14, 17, 0.85);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 60;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: var(--transition);
}

[data-theme="light"] .top-nav {
  background-color: rgba(255, 255, 255, 0.88);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  user-select: none;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: #000000;
  border: 1px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 0 0 14px rgba(255, 255, 255, 0.06);
  flex-shrink: 0;
}

.brand-icon:hover {
  border-color: var(--border-strong);
  transform: scale(1.03);
}

.brand-logo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.brand-meta {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand-title {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.025em;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
}

.badge-version {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-medium);
  padding: 1px 7px;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

.brand-subtitle {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

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

/* --- Live Status Pill --- */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card-subtle);
  color: var(--text-secondary);
  transition: var(--transition);
  user-select: none;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  position: relative;
  background: var(--text-muted);
}

.status-dot::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: 50%;
  background: inherit;
  opacity: 0;
}

/* Connected State: High-contrast Stark White on Black */
.status-connected {
  background: var(--accent-contrast);
  color: var(--accent-contrast-text);
  border-color: var(--accent-contrast);
  box-shadow: 0 0 16px var(--accent-glow);
}

.status-connected .status-dot {
  background: var(--accent-contrast-text);
}

.status-connected .status-dot::after {
  background: var(--accent-contrast-text);
  animation: livePulse 2s infinite ease-out;
}

@keyframes livePulse {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(2.6); opacity: 0; }
}

/* Connecting / QR Ready State */
.status-connecting, .status-qr_ready {
  background: var(--bg-card-subtle);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.status-connecting .status-dot, .status-qr_ready .status-dot {
  background: #ffffff;
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
}

[data-theme="light"] .status-connecting .status-dot,
[data-theme="light"] .status-qr_ready .status-dot {
  background: #09090b;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.4);
}

.status-connecting .status-dot::after, .status-qr_ready .status-dot::after {
  animation: livePulse 1.6s infinite ease-out;
}

/* Disconnected State */
.status-disconnected {
  background: var(--bg-card-subtle);
  color: var(--text-muted);
  border-color: var(--border-subtle);
}

.status-disconnected .status-dot {
  background: var(--text-faint);
}

/* --- Layout Grid --- */
.main-content {
  flex: 1;
  max-width: 1360px;
  width: 100%;
  margin: 0 auto;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.content-grid {
  display: grid;
  grid-template-columns: 460px 1fr;
  gap: 28px;
}

@media (max-width: 1080px) {
  .content-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Sleek Cards --- */
.card {
  background-color: rgba(14, 14, 17, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

[data-theme="light"] .card {
  background-color: rgba(255, 255, 255, 0.94);
}

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

.card-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-card);
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 3px;
}

.card-body {
  padding: 24px;
  flex: 1;
}

.card-body.no-padding {
  padding: 0;
}

.card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
  user-select: none;
  outline: none;
}

.btn:focus-visible {
  box-shadow: 0 0 0 2px var(--bg-app), 0 0 0 4px var(--border-focus);
}

/* Primary Button: Stark White Solid (Black in Light mode) */
.btn-primary {
  background-color: var(--accent-contrast);
  color: var(--accent-contrast-text);
  border-color: var(--accent-contrast);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.btn-primary:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--accent-glow);
}

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

.btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Secondary Button: Clean Translucent Graphite */
.btn-secondary {
  background-color: var(--bg-card-subtle);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

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

.btn-secondary:active {
  background-color: var(--accent-hover);
}

/* Danger Button: Subtle Dark Alert */
.btn-danger {
  background-color: var(--danger-bg);
  color: var(--danger-color);
  border-color: var(--danger-border);
}

.btn-danger:hover {
  background-color: var(--danger-color);
  color: #ffffff;
  border-color: var(--danger-color);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.78rem;
  border-radius: var(--radius-sm);
}

.btn-xs {
  padding: 4px 10px;
  font-size: 0.72rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-md);
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.btn-icon:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
  background-color: var(--accent-subtle);
}

.btn-block {
  width: 100%;
}

/* --- Sleek Tab Navigation & Switchers --- */
.tab-switcher, .tab-nav {
  display: flex;
  gap: 4px;
  background-color: var(--bg-card-subtle);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  margin-bottom: 20px;
}

.tab-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  outline: none;
}

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

.tab-btn.active {
  background-color: var(--bg-card);
  color: var(--text-primary);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-subtle);
}

/* --- Connected Device View --- */
.device-profile-box {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px;
  background-color: var(--bg-card-subtle);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  margin-bottom: 22px;
}

.avatar-wrapper {
  position: relative;
  width: 58px;
  height: 58px;
  flex-shrink: 0;
}

.device-avatar, .avatar-fallback {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-full);
  object-fit: cover;
  background-color: var(--bg-input);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border: 1px solid var(--border-strong);
  box-shadow: 0 0 14px rgba(255, 255, 255, 0.08);
}

.online-indicator {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 14px;
  height: 14px;
  background-color: var(--accent-contrast);
  border: 2px solid var(--bg-card);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--accent-glow);
}

.device-details {
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow: hidden;
}

.device-name {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.device-number {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.device-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

/* --- High-Tech Telemetry Metrics Grid --- */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 22px;
}

.metric-item {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 10px;
  text-align: center;
  transition: var(--transition-fast);
}

.metric-item:hover {
  border-color: var(--border-medium);
  background-color: var(--bg-card-hover);
}

.metric-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 5px;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 0.96rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

/* --- QR Code Viewfinder & Scanner --- */
.qr-box-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 290px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 18px;
  position: relative;
  overflow: hidden;
}

/* Modern HUD Viewfinder corner brackets */
.qr-box-wrapper::before,
.qr-box-wrapper::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  pointer-events: none;
  border-color: var(--border-strong);
  border-style: solid;
}

.qr-box-wrapper::before {
  top: 14px;
  left: 14px;
  border-width: 2px 0 0 2px;
}

.qr-box-wrapper::after {
  bottom: 14px;
  right: 14px;
  border-width: 0 2px 2px 0;
}

.qr-img-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: fadeIn 0.3s ease;
  position: relative;
}

.qr-image {
  width: 210px;
  height: 210px;
  image-rendering: pixelated;
  background-color: #ffffff;
  padding: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 0 24px rgba(0, 0, 0, 0.5);
}

.qr-scan-badge {
  margin-top: 10px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-primary);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-medium);
  padding: 3px 12px;
  border-radius: var(--radius-full);
}

.qr-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  color: var(--text-muted);
}

.qr-hint {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.qr-instructions {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.qr-instructions ol {
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.qr-instructions li {
  line-height: 1.45;
}

.qr-instructions strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* --- Pairing Code View --- */
.pairing-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.45;
}

.pairing-code-box {
  margin-top: 20px;
  padding: 20px;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  text-align: center;
  position: relative;
  box-shadow: 0 0 24px rgba(255, 255, 255, 0.04);
}

.pairing-title {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.pairing-digits {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--text-primary);
  margin: 10px 0;
  user-select: all;
  text-shadow: 0 0 16px rgba(255, 255, 255, 0.2);
}

[data-theme="light"] .pairing-digits {
  text-shadow: none;
}

.pairing-steps {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* --- Quick Tool / Number Checker --- */
.quick-tool-section {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}

.section-title-sm {
  font-size: 0.74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.check-number-form {
  display: flex;
  gap: 8px;
}

.check-result {
  margin-top: 10px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
}

/* --- Forms, Inputs & Fieldsets --- */
.form-group {
  margin-bottom: 16px;
}

.form-row {
  display: flex;
  gap: 14px;
}

.flex-1 { flex: 1; }
.flex-2 { flex: 2; }

label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.required {
  color: var(--text-primary);
  font-weight: 700;
}

.input-field {
  width: 100%;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  outline: none;
}

.input-field:hover {
  border-color: var(--border-medium);
}

.input-field:focus {
  border-color: var(--border-focus);
  background-color: var(--bg-card);
  box-shadow: 0 0 0 1px var(--border-focus), 0 0 16px rgba(255, 255, 255, 0.08);
}

[data-theme="light"] .input-field:focus {
  box-shadow: 0 0 0 1px var(--border-focus), 0 0 10px rgba(0, 0, 0, 0.08);
}

select.input-field {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' width='16' height='16' stroke='%23a1a1aa' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round' xmlns='http://www.w3.org/2000/svg'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
}

.input-sm {
  padding: 6px 12px;
  font-size: 0.78rem;
}

.textarea-field {
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

.input-help {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 5px;
  display: block;
}

/* Radio Switcher / Toggle for Media Source */
.radio-toggle {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}

.radio-toggle label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  margin-bottom: 0;
  user-select: none;
}

.radio-toggle label:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.radio-toggle input[type="radio"] {
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: transparent;
  outline: none;
  cursor: pointer;
  position: relative;
  margin: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.radio-toggle input[type="radio"]:checked {
  border-color: var(--accent-contrast);
  background: var(--accent-contrast);
}

.radio-toggle label:has(input[type="radio"]:checked) {
  background: var(--bg-card-hover);
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.media-fields-box {
  background: var(--bg-card-subtle);
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  margin-bottom: 16px;
}

.file-input {
  padding: 8px 12px;
  cursor: pointer;
}

.file-input::file-selector-button {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  font-size: 0.76rem;
  font-weight: 500;
  cursor: pointer;
  margin-right: 12px;
  transition: var(--transition-fast);
}

.file-input::file-selector-button:hover {
  background: var(--accent-subtle);
  border-color: var(--border-strong);
}

.composer-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 20px;
}

/* --- API Documentation & Terminal Snippets --- */
.api-docs-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.docs-section {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 20px;
}

.docs-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.docs-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.endpoint-url {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.docs-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.45;
}

.code-snippet-box {
  background-color: var(--bg-code);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.code-header {
  background-color: rgba(255, 255, 255, 0.02);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
}

.btn-copy {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 3px 10px;
  border-radius: var(--radius-xs);
  font-size: 0.7rem;
  font-family: var(--font-sans);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-copy:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
  background-color: var(--accent-subtle);
}

pre {
  margin: 0;
  padding: 14px 16px;
  overflow-x: auto;
}

code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.6;
  color: #e4e4e7;
  white-space: pre-wrap;
  word-break: break-all;
}

[data-theme="light"] code {
  color: #e4e4e7; /* Terminal stays sleek dark contrast in light mode */
}

/* --- Live Message Stream & Activity Log --- */
.card-logs {
  margin-bottom: 28px;
}

.logs-header-meta {
  display: flex;
  flex-direction: column;
}

.logs-controls {
  display: flex;
  align-items: center;
  gap: 14px;
}

.filter-pills {
  display: flex;
  gap: 6px;
  background: var(--bg-card-subtle);
  padding: 3px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}

.filter-pill {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.74rem;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-fast);
  outline: none;
}

.filter-pill:hover {
  color: var(--text-primary);
}

.filter-pill.active {
  background: var(--accent-contrast);
  color: var(--accent-contrast-text);
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.table-responsive {
  overflow-x: auto;
  max-height: 420px;
}

.logs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  text-align: left;
}

.logs-table th {
  background-color: var(--bg-card-subtle);
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 10;
}

.logs-table td {
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: middle;
}

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

.empty-state {
  text-align: center;
  padding: 48px !important;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* --- Badges: Monochromatic High-Contrast --- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-xs);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  border: 1px solid transparent;
}

.badge-post {
  background: var(--bg-card-subtle);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.badge-get {
  background: var(--bg-card-subtle);
  color: var(--text-secondary);
  border-color: var(--border-subtle);
}

.badge-emerald {
  background: var(--accent-contrast);
  color: var(--accent-contrast-text);
  font-weight: 700;
}

.badge-slate {
  background: var(--bg-card-subtle);
  color: var(--text-secondary);
  border-color: var(--border-subtle);
}

.badge-outbound {
  background: var(--bg-card-subtle);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.badge-inbound {
  background: var(--accent-contrast);
  color: var(--accent-contrast-text);
  font-weight: 700;
}

.badge-system {
  background: var(--bg-card-subtle);
  color: var(--text-muted);
  border-color: var(--border-subtle);
}

/* Status colors in logs table */
.status-sent {
  color: var(--text-primary);
}

.status-delivered {
  color: var(--text-primary);
}

.status-read {
  color: var(--accent-contrast);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.status-failed {
  color: var(--danger-color);
}

.status-received {
  color: var(--text-primary);
}

/* --- Modals: Blur Backdrop & Centered Pop --- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 120;
}

.modal-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modalPop 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
  0% { transform: scale(0.96); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.modal-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.btn-close {
  background: transparent;
  border: none;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-fast);
}

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

.modal-body {
  padding: 22px;
}

.modal-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.45;
}

.modal-desc code {
  font-family: var(--font-mono);
  background: var(--bg-card-subtle);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
  font-size: 0.74rem;
  color: var(--text-primary);
}

.modal-footer {
  padding: 16px 22px;
  background-color: var(--bg-card-subtle);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
}

/* --- Footer --- */
.bottom-footer {
  padding: 22px 28px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.74rem;
  color: var(--text-muted);
  background-color: var(--bg-surface);
}

@media (max-width: 768px) {
  .bottom-footer {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

/* --- Spinners --- */
.spinner {
  width: 28px;
  height: 28px;
  border: 2px solid var(--border-subtle);
  border-top-color: var(--text-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border-subtle);
  border-top-color: var(--text-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* --- Toast Notifications --- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 220;
}

.toast {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  box-shadow: var(--shadow-lg);
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 400px;
}

.toast-success {
  border-left: 3px solid var(--text-primary);
}

.toast-error {
  border-left: 3px solid var(--danger-color);
}

.toast-info {
  border-left: 3px solid var(--text-secondary);
}

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

/* --- Utility Classes --- */
.hidden {
  display: none !important;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-strong);
}

/* ==========================================================================
   CYBER LOGIN GATE STYLES
   ========================================================================== */
.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  padding: 20px;
  animation: fadeInOverlay 0.3s ease;
}

@keyframes fadeInOverlay {
  from { opacity: 0; }
  to { opacity: 1; }
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: #0a0a0d;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  padding: 40px 32px 34px 32px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.95), 0 0 40px rgba(239, 68, 68, 0.1);
  text-align: center;
  position: relative;
  overflow: hidden;
  animation: loginSlideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.login-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #ef4444, #ffffff, #ef4444, transparent);
}

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

.login-card.shake {
  animation: shakeCard 0.4s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes shakeCard {
  10%, 90% { transform: translate3d(-1px, 0, 0); }
  20%, 80% { transform: translate3d(2px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
  40%, 60% { transform: translate3d(4px, 0, 0); }
}

.login-brand {
  margin-bottom: 24px;
}

.login-brand-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 0 auto 16px auto;
}

.brand-logo-left {
  width: 50px;
  height: 50px;
  object-fit: contain;
  filter: drop-shadow(0 0 14px rgba(239, 68, 68, 0.45));
  transition: transform 0.25s ease;
  user-select: none;
}

.brand-logo-x {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.35);
  line-height: 1;
  user-select: none;
}

.brand-logo-right {
  width: 40px;
  height: 40px;
  object-fit: contain;
  filter: drop-shadow(0 0 14px rgba(255, 255, 255, 0.25));
  transition: transform 0.25s ease;
  user-select: none;
}

.brand-logo-left:hover,
.brand-logo-right:hover {
  transform: scale(1.08);
}

.login-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #ffffff;
  margin: 0;
}

.login-form {
  text-align: left;
}

.login-form .form-group {
  margin-bottom: 14px;
}

.login-input {
  width: 100%;
  height: 46px;
  padding: 0 16px;
  background-color: #050508;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #ffffff;
  transition: var(--transition);
  letter-spacing: 0.05em;
}

.login-input:focus {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
  background-color: #07070b;
}

.login-error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #fca5a5;
  font-size: 0.8rem;
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
  text-align: left;
  line-height: 1.4;
  animation: fadeInOverlay 0.2s ease;
}

.login-btn {
  height: 46px;
  font-size: 0.9rem;
  font-weight: 600;
  background: #ffffff;
  color: #000000;
  border: none;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 14px rgba(255, 255, 255, 0.18);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
}

.login-btn:hover {
  background: #e4e4e7;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.28);
}

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