/*
 * Pulse Support Design System - v3.0 (Minimalist)
 * Clean, Monochrome, Functional.
 */

/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

:root {
  /* Typography */
  --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* Palette - Zinc/Neutral */
  --bg-primary: #09090b;
  /* Zinc-950 */
  --bg-secondary: #18181b;
  /* Zinc-900 */
  --bg-tertiary: #27272a;
  /* Zinc-800 */

  /* Surfaces */
  --bg-panel: #18181b;
  --bg-glass: rgba(24, 24, 27, 0.95);
  /* Mostly solid */
  --bg-glass-hover: #27272a;

  /* Borders */
  --border-subtle: #27272a;
  --border-medium: #3f3f46;
  --border-highlight: #52525b;

  /* Text */
  --text-primary: #fafafa;
  /* Zinc-50 */
  --text-secondary: #a1a1aa;
  /* Zinc-400 */
  --text-muted: #71717a;
  /* Zinc-500 */
  --text-inverse: #09090b;

  /* Accents - Functional Blue (Clean) */
  --accent-primary: #3b82f6;
  /* Blue-500 */
  --accent-primary-hover: #2563eb;
  --accent-primary-glow: transparent;
  /* No glow */

  --accent-secondary: #e4e4e7;
  /* Zinc-200 */

  /* Status */
  --success: #22c55e;
  --warning: #eab308;
  --danger: #ef4444;

  /* Message Bubbles - Flat */
  --msg-user-bg: #27272a;
  --msg-user-border: #3f3f46;

  --msg-admin-bg: rgba(59, 130, 246, 0.1);
  /* Subtle Blue Tint */
  --msg-admin-border: rgba(59, 130, 246, 0.2);

  --msg-ai-bg: transparent;
  --msg-ai-border: transparent;

  /* Effects */
  --blur-glass: blur(0px);
  /* Removed blur for performance and crispness */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-glow: none;

  /* Layout */
  --header-height: 64px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s ease;

  --z-toast: 9999;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

/* Buttons - Flat/Subtle */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 8px 16px;
  font-weight: 500;
  font-size: 14px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
}

.btn-primary:hover {
  background: #e4e4e7;
  /* Zinc-200 */
}

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-medium);
}

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

.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--border-medium);
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--danger);
}

/* Form Inputs - Clean */
.input,
.response-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  transition: all var(--transition-fast);
  outline: none;
}

.input:focus,
.response-input:focus {
  border-color: var(--text-muted);
  background: var(--bg-tertiary);
}

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

/* Scrollbar - Minimal */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

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

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

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Animations - Subtle Fade */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.animate-fade-in {
  animation: fadeIn 0.2s ease-out;
}