:root {
  /* Design Tokens - Light Theme */
  --bg-gradient: linear-gradient(135deg, #f0f4f8 0%, #e2e8f0 100%);
  --panel-bg: rgba(255, 255, 255, 0.7);
  --panel-border: rgba(255, 255, 255, 0.5);
  --ink: #1e293b;
  --muted: #64748b;
  --primary: #10b981;
  --primary-glow: rgba(16, 185, 129, 0.2);
  --accent: #f59e0b;
  --danger: #ef4444;
  --glass-blur: 12px;
  --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
  --radius-lg: 24px;
  --radius-md: 12px;
  --font-main: "Space Grotesk", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

[data-theme="dark"] {
  --bg-gradient: linear-gradient(135deg, #0f172a 0%, #020617 100%);
  --panel-bg: rgba(30, 41, 59, 0.7);
  --panel-border: rgba(255, 255, 255, 0.1);
  --ink: #f1f5f9;
  --muted: #94a3b8;
  --primary: #34d399;
  --primary-glow: rgba(52, 211, 153, 0.3);
  --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--ink);
  background: var(--bg-gradient);
  background-attachment: fixed;
  min-height: 100vh;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.layout>section {
  animation: fadeIn 0.5s ease out forwards;
}

/* Glassmorphism Panel */
.panel {
  background: var(--panel-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 24px;
}

.layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 16px;
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(12, 1fr);
}

/* Header/Hero Section */
.hero {
  grid-column: span 12;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 24px;
}

.brand-section {
  flex: 1;
  min-width: 300px;
}

.brand-row {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 8px;
}

.brand-mark {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 24px;
  display: grid;
  place-items: center;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.eyebrow {
  font-family: var(--font-mono);
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 14px;
  margin: 0;
}

h1 {
  margin: 0;
  font-size: 32px;
  font-weight: 700;
}

h2 {
  margin: 0 0 20px;
  font-size: 20px;
  font-weight: 600;
}

.controls-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-end;
}

/* Theme Toggle */
.theme-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 30px;
}

.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #cbd5e1;
  transition: .4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked+.slider {
  background-color: var(--primary);
}

input:checked+.slider:before {
  transform: translateX(30px);
}

/* Buttons & Inputs */
.btn {
  font: inherit;
  font-weight: 600;
  border: 1px solid var(--panel-border);
  background: var(--panel-bg);
  color: var(--ink);
  border-radius: var(--radius-md);
  padding: 12px 20px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn.primary {
  background: var(--primary);
  color: #fff;
  border: none;
}

.btn.accent {
  background: var(--accent);
  color: #fff;
  border: none;
}

input,
textarea,
select {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  padding: 12px;
  font: inherit;
  color: var(--ink);
  outline: none;
}

input:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Status Chips */
.status-grid {
  display: flex;
  gap: 12px;
  margin: 16px 0;
  flex-wrap: wrap;
}

.status-chip {
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--panel-border);
  border-radius: 99px;
  font-size: 14px;
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #94a3b8;
}

.status-dot.active {
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
}

/* Config Forms */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.span-2 {
  grid-column: span 2;
}

/* Message Preview */
.preview-container {
  background: #e5ddd5;
  background-image: url("https://user-images.githubusercontent.com/15075759/28719144-86dc0f70-73b1-11e7-911d-60d70fcded21.png");
  border-radius: var(--radius-md);
  padding: 20px;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.msg-bubble {
  max-width: 80%;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
  position: relative;
  box-shadow: 0 1px 0.5px rgba(0, 0, 0, 0.13);
}

.msg-bubble.sent {
  background: #dcf8c6;
  align-self: flex-end;
  border-top-right-radius: 0;
}

.msg-bubble.received {
  background: #fff;
  align-self: flex-start;
  border-top-left-radius: 0;
}

/* Dashboard Specifics */
.qr-panel {
  grid-column: span 4;
}

.config-panel {
  grid-column: span 8;
}

.reports-panel,
.logs-panel,
.custom-panel {
  grid-column: span 12;
}

.qr-box {
  background: #fff;
  padding: 20px;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  min-height: 300px;
  justify-content: center;
}

.qr-box img {
  max-width: 100%;
  border-radius: 8px;
}

/* Progress Bar */
.progress-wrapper {
  margin: 10px 0;
  background: rgba(0, 0, 0, 0.05);
  border-radius: 99px;
  height: 8px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--primary);
  width: 0%;
  transition: width 0.3s ease;
}

/* Authentication Styling */
.auth-shell {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  animation: fadeIn 0.8s ease;
}

/* Responsive */
@media (max-width: 1024px) {

  .qr-panel,
  .config-panel {
    grid-column: span 12;
  }
}

@media (max-width: 640px) {
  .form-grid {
    grid-template-columns: 1fr;
  }

  .span-2 {
    grid-column: span 1;
  }
}