/* ============================================================
   ZERVONIX — Design System
   styles.css: Variables, reset, base typography, layout utilities
   ============================================================ */

/* ============================================================
   CSS CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* Colors */
  --color-bg:           #0a0d14;
  --color-bg-elevated:  #0d1117;
  --color-bg-card:      #0f1420;
  --color-purple:       #8A65E8;
  --color-purple-bright:#A07AF0;
  --color-purple-dark:  #7250D4;
  --color-aws:          #FF9900;
  --color-white:        #F8F6FF;
  --color-text-secondary: #94a3b8;
  --color-text-muted:   #64748b;
  --color-border:       rgba(138, 101, 232, 0.2);

  /* Typography */
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
  --font-brand: 'Nunito', sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --container-max: 1200px;
  --container-pad: 24px;
  --section-py-desktop: 100px;
  --section-py-mobile:  60px;
  --card-gap: 24px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;

  /* Glow Effects */
  --glow-opacity: 0.15;

  /* Radii */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  12px;
  --radius-xl:  16px;
}

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

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

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

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

input, button, textarea, select {
  font: 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;
  border: none;
  background: none;
}

/* ============================================================
   BASE TYPOGRAPHY
   ============================================================ */
h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.35;
}

h4 {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
}

p {
  line-height: 1.7;
  color: var(--color-text-secondary);
}

code, pre {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  width: 100%;
}

.section {
  padding: var(--section-py-desktop) 0;
}

.section--elevated {
  background-color: var(--color-bg-elevated);
}

.section__header {
  text-align: center;
  margin-bottom: 48px;
}

.section__title {
  color: var(--color-white);
  margin-bottom: 12px;
}

.section__subtitle {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
}

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

.btn--primary:hover {
  background: var(--color-purple-bright);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(138, 101, 232, 0.35);
}

.btn--primary:active {
  transform: translateY(0);
  background: var(--color-purple-dark);
}

.btn--outline {
  background: transparent;
  color: var(--color-purple-bright);
  border: 1.5px solid var(--color-purple);
}

.btn--outline:hover {
  background: rgba(138, 101, 232, 0.12);
  border-color: var(--color-purple-bright);
}

.btn--large {
  padding: 16px 32px;
  font-size: 1rem;
  border-radius: 8px;
}

/* ============================================================
   BADGES / PILLS
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border: 1px solid var(--color-border);
  color: var(--color-purple-bright);
  background: rgba(138, 101, 232, 0.08);
}

.badge--aws {
  border-color: rgba(255, 153, 0, 0.4);
  color: var(--color-aws);
  background: rgba(255, 153, 0, 0.08);
}

.badge--minimal {
  background: transparent;
  border: none;
  padding: 0;
  font-size: 0.85rem;
}

/* ============================================================
   RESPONSIVE BASE
   ============================================================ */
@media (max-width: 640px) {
  :root {
    --section-py-desktop: 48px;
    --container-pad: 16px;
  }

  .section__header {
    margin-bottom: 32px;
  }
}