/* ==========================================================================
   AIVIO Modern Design System Theme
   Unified Styling aligned with AIVIO index.html
   ========================================================================== */

@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css");

:root {
  /* Backgrounds */
  --bg-base: #faf9f6;        /* Warm Ivory */
  --bg-white: #ffffff;
  --bg-subtle: #f1f5f9;       /* Light Slate Blue */
  --bg-card: #ffffff;
  
  /* Typography */
  --text-main: #0f172a;       /* Deep Slate Black */
  --text-muted: #475569;      /* Charcoal Gray */
  --text-light: #64748b;      /* Slate Light */
  
  /* Brand Primary */
  --primary: #1e3a8a;         /* Deep Navy */
  --primary-hover: #172554;
  --primary-light: #eff6ff;
  
  /* Brand Accent */
  --accent: #ea580c;          /* Warm Orange */
  --accent-hover: #c2410c;
  --accent-soft: #fff7ed;     /* Soft Warm Orange Background */
  
  /* Borders & Lines */
  --line: #e2e8f0;
  --line-subtle: #edf2f7;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.08);
  
  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  
  /* Layout */
  --max-width: 1200px;
  --font-family: 'Pretendard Variable', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-base);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Common UI Component Utility Classes */
.aivio-header {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 14px 24px;
}

.aivio-nav-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.aivio-brand {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.aivio-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  border-radius: var(--radius-full);
  border: 1px solid #fed7aa;
}

.aivio-card {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.aivio-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.aivio-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  text-decoration: none;
}

.aivio-btn-primary {
  background: var(--primary);
  color: #ffffff;
}

.aivio-btn-primary:hover {
  background: var(--primary-hover);
  color: #ffffff;
}

.aivio-btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--line);
}

.aivio-btn-outline:hover {
  background: var(--bg-subtle);
  border-color: var(--primary);
}

.aivio-btn-accent {
  background: var(--accent);
  color: #ffffff;
}

.aivio-btn-accent:hover {
  background: var(--accent-hover);
}