ra-h-os/app/globals.css

/* Import clean, modern fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600&display=swap');

/* Geist Sans - Modern font optimized for reading/writing applications */
@font-face {
  font-family: 'Geist';
  src: url('https://cdn.jsdelivr.net/npm/geist@1.3.0/dist/fonts/geist-sans/Geist-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('https://cdn.jsdelivr.net/npm/geist@1.3.0/dist/fonts/geist-sans/Geist-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('https://cdn.jsdelivr.net/npm/geist@1.3.0/dist/fonts/geist-sans/Geist-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('https://cdn.jsdelivr.net/npm/geist@1.3.0/dist/fonts/geist-sans/Geist-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@tailwind base;
@tailwind components;
@tailwind utilities;

:root,
html[data-theme="dark"] {
  color-scheme: dark;
  --rah-bg-base: #0a0a0a;
  --rah-bg-surface: #111111;
  --rah-bg-subtle: #121212;
  --rah-bg-panel: #141414;
  --rah-bg-hover: #151515;
  --rah-bg-elevated: #161616;
  --rah-bg-active: #1a1a1a;
  --rah-bg-modal: #141414;
  --rah-border: #1a1a1a;
  --rah-border-strong: #2a2a2a;
  --rah-border-stronger: #3a3a3a;
  --rah-scrollbar: #353535;
  --rah-scrollbar-hover: #4a4a4a;
  --rah-text-base: #e5e5e5;
  --rah-text-secondary: #c7c7c7;
  --rah-text-muted: #7a7a7a;
  --rah-text-soft: #a3a3a3;
  --rah-text-active: #f0f0f0;
  --rah-text-inverse: #0a0a0a;
  --rah-accent-green: #22c55e;
  --rah-accent-green-hover: #16a34a;
  --rah-accent-green-soft: rgba(34, 197, 94, 0.14);
  --rah-accent-green-soft-strong: rgba(34, 197, 94, 0.22);
  --rah-backdrop: rgba(0, 0, 0, 0.85);
  --rah-shadow-modal: 0 8px 32px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.05);
  --rah-shadow-floating: 0 4px 12px rgba(0, 0, 0, 0.4);
}

html[data-theme="light"] {
  color-scheme: light;
  --rah-bg-base: #ffffff;
  --rah-bg-surface: #fafafa;
  --rah-bg-subtle: #f7f7f7;
  --rah-bg-panel: #f5f5f5;
  --rah-bg-hover: #f0f0f0;
  --rah-bg-elevated: #ececec;
  --rah-bg-active: #e8e8e8;
  --rah-bg-modal: #ffffff;
  --rah-border: #e5e5e5;
  --rah-border-strong: #d4d4d4;
  --rah-border-stronger: #bdbdbd;
  --rah-scrollbar: #d4d4d4;
  --rah-scrollbar-hover: #b5b5b5;
  --rah-text-base: #111111;
  --rah-text-secondary: #333333;
  --rah-text-muted: #6b7280;
  --rah-text-soft: #4b5563;
  --rah-text-active: #000000;
  --rah-text-inverse: #ffffff;
  --rah-accent-green: #16a34a;
  --rah-accent-green-hover: #15803d;
  --rah-accent-green-soft: rgba(22, 163, 74, 0.12);
  --rah-accent-green-soft-strong: rgba(22, 163, 74, 0.2);
  --rah-backdrop: rgba(0, 0, 0, 0.5);
  --rah-shadow-modal: 0 10px 36px rgba(0, 0, 0, 0.18), 0 0 0 1px rgba(0, 0, 0, 0.04);
  --rah-shadow-floating: 0 6px 20px rgba(0, 0, 0, 0.16);
}

/* Modern Clean Design System - RA-H */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  overflow: hidden;
  background-color: var(--rah-bg-base);
  color: var(--rah-text-base);
  /* Geist Sans for optimal reading/writing experience */
  font-family: 'Geist', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px; 
  line-height: 1.5; 
  letter-spacing: -0.011em; /* Optimized letter spacing for Geist */
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Monospace font class for technical elements */
.font-mono {
  font-family: 'JetBrains Mono', 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Courier New', monospace;
  font-feature-settings: 'liga' 1, 'calt' 1;
}

/* Scrollbar styling for terminal theme */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--rah-bg-base);
}

::-webkit-scrollbar-thumb {
  background: var(--rah-scrollbar);
  border-radius: 2px;
}

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

/* Utility classes */
.border-divider {
  border-color: var(--rah-border);
}

.text-muted {
  color: #6b6b6b;
}

.text-primary {
  color: #e5e5e5;
}

.bg-hover:hover {
  background-color: #151515;
}

/* Terminal animations */
@keyframes pulse {
  0%, 100% { 
    opacity: 1;
    transform: scale(1);
  }
  50% { 
    opacity: 0.6;
    transform: scale(1.2);
  }
}

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

@keyframes fadeIn {
  to { opacity: 1; }
}

@keyframes loadingPulse {
  0%, 80%, 100% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Modal/Popup animations */
@keyframes modalFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes modalSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

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

/* Modal utility classes */
.modal-backdrop {
  animation: modalFadeIn 0.15s ease-out;
}

.modal-content {
  animation: modalSlideUp 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Text truncation utilities */
.text-truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.text-truncate-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.text-truncate-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}