/* ========================================
   base.css — Reset + Design Tokens
   DevOps AI by RainTech
   ======================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

/* --- Design Tokens --- */
:root {
  /* Brand Colors */
  --green-primary: #79C600;
  --green-bright: #8BDB02;
  --blue-cetacean: #001647;
  --blue-royal: #05108E;
  --blue-sky: #20BAE7;
  --white-ghost: #F7F7FF;
  --violet-bright: #C616EA;
  --gray: #97999B;
  --black: #000000;
  --cyan: #17E4ED;
  --blue-mid: #2272E0;

  /* Semantic Colors (Dark Mode Default) */
  --bg-primary: #001647;
  --bg-secondary: #001030;
  --bg-tertiary: #001a52;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --bg-surface: #00204f;
  --text-primary: #F7F7FF;
  --text-secondary: rgba(247, 247, 255, 0.72);
  --text-tertiary: rgba(247, 247, 255, 0.48);
  --text-muted: rgba(247, 247, 255, 0.32);
  --border-default: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.2);
  --accent: #8BDB02;
  --accent-hover: #79C600;
  --accent-glow: rgba(139, 219, 2, 0.15);

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, #8BDB02 0%, #17E4ED 100%);
  --gradient-blue: linear-gradient(135deg, #05108E 0%, #001647 100%);
  --gradient-cyan: linear-gradient(135deg, #17E4ED 0%, #2272E0 100%);
  --gradient-royal: linear-gradient(135deg, #05108E 0%, #2272E0 100%);
  --gradient-violet: linear-gradient(135deg, #C616EA 0%, #5D24FC 100%);

  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  /* Fluid Type Scale */
  --text-xs: clamp(0.694rem, 0.66rem + 0.17vw, 0.8rem);
  --text-sm: clamp(0.833rem, 0.78rem + 0.27vw, 1rem);
  --text-base: clamp(1rem, 0.93rem + 0.36vw, 1.2rem);
  --text-lg: clamp(1.2rem, 1.1rem + 0.5vw, 1.5rem);
  --text-xl: clamp(1.44rem, 1.3rem + 0.7vw, 1.875rem);
  --text-2xl: clamp(1.728rem, 1.53rem + 0.99vw, 2.344rem);
  --text-3xl: clamp(2.074rem, 1.79rem + 1.42vw, 2.93rem);
  --text-4xl: clamp(2.488rem, 2.08rem + 2.04vw, 3.66rem);
  --text-hero: clamp(2.986rem, 2.4rem + 2.93vw, 4.58rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --max-width: 1280px;
  --max-width-narrow: 960px;
  --max-width-wide: 1440px;
  --gutter: clamp(1rem, 3vw, 2rem);
  --section-padding: clamp(4rem, 8vw, 8rem);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(139, 219, 2, 0.15);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;

  /* Z-index */
  --z-header: 100;
  --z-dropdown: 200;
  --z-overlay: 300;
  --z-modal: 400;
}

/* Light Mode */
[data-theme="light"] {
  --bg-primary: #F7F7FF;
  --bg-secondary: #EEEEF5;
  --bg-tertiary: #E5E5EF;
  --bg-card: rgba(0, 22, 71, 0.04);
  --bg-card-hover: rgba(0, 22, 71, 0.08);
  --bg-surface: #FFFFFF;
  --text-primary: #001647;
  --text-secondary: rgba(0, 22, 71, 0.72);
  --text-tertiary: rgba(0, 22, 71, 0.48);
  --text-muted: rgba(0, 22, 71, 0.32);
  --border-default: rgba(0, 22, 71, 0.1);
  --border-strong: rgba(0, 22, 71, 0.2);
  --accent: #79C600;
  --accent-hover: #6AB200;
  --accent-glow: rgba(121, 198, 0, 0.12);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 40px rgba(121, 198, 0, 0.1);
}

/* Base Typography */
body {
  font-family: var(--font-family);
  font-size: var(--text-base);
  font-weight: var(--font-weight-regular);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--duration-slow) var(--ease-out),
              color var(--duration-slow) var(--ease-out);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-extrabold);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-hero); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); font-weight: var(--font-weight-bold); }

p {
  color: var(--text-secondary);
  max-width: 70ch;
}

/* Skip to content */
.skip-to-content {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--accent);
  color: var(--blue-cetacean);
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-sm);
  z-index: 9999;
  transition: top var(--duration-fast);
}

.skip-to-content:focus {
  top: var(--space-4);
}

/* Focus Visible */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Selection */
::selection {
  background: rgba(139, 219, 2, 0.3);
  color: var(--text-primary);
}

/* Utility: Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

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

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

/* Utility: Section */
.section {
  padding-block: var(--section-padding);
}

/* Scroll animation base */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}