/* ==========================================================================
   Voicgen CSS - Premium AI SaaS Theme (Light Mode)
   ========================================================================== */

/* --- CSS Variables / Design Tokens --- */
:root {
  /* Colors */
  --bg-color: #ffffff;
  --bg-alt: #fafafa;
  --bg-panel: #ffffff;
  
  --text-primary: #111111;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  
  --accent-color: #c43aed; /* The requested purple accent */
  --accent-glow: rgba(196, 58, 237, 0.15);
  --accent-hover: #a82bc9;
  
  --border-color: #e5e7eb;
  --border-highlight: #d1d5db;
  
  --cta-bg: #111111;
  --cta-text: #ffffff;
  --cta-hover: #333333;
  
  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Layout */
  --container-width: 1200px;
  --container-narrow: 800px;
  --nav-height: 72px;
  --section-y: clamp(3.5rem, 6vw, 7.5rem);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  /* Shadows & Effects */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
  --shadow-card: 0 12px 32px -4px rgba(0, 0, 0, 0.07), 0 4px 12px -2px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 40px -10px var(--accent-glow);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Base Styles --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* Sticky footer: keep footer at viewport bottom when page content is short */
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

body > main {
  flex: 1 0 auto;
}

body > nav.navbar,
body > footer.footer,
body > .mobile-nav-backdrop,
body > .mobile-nav-panel {
  flex-shrink: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

img, svg {
  max-width: 100%;
  display: block;
}

/* --- Layout & Utility --- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left));
  padding-right: max(16px, env(safe-area-inset-right));
}

.container-narrow {
  max-width: var(--container-narrow);
}

@media (min-width: 480px) {
  .container {
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
  }
}

@media (min-width: 768px) {
  .container {
    padding-left: max(24px, env(safe-area-inset-left));
    padding-right: max(24px, env(safe-area-inset-right));
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: max(32px, env(safe-area-inset-left));
    padding-right: max(32px, env(safe-area-inset-right));
  }
}