/* style.css for spwashi.ai – Cyber‑Teal, enhanced contrast & flow */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&family=JetBrains+Mono:wght@400;600&display=swap');

:root {
  /* Palette – Cyber Teal with enhanced contrast */
  --color-bg: #0d1117;
  --color-fg: #e2e8f0;
  --color-primary: #14b8a6; /* teal */
  --color-primary-dark: #0f766e;
  --color-accent: #7c3aed; /* violet */
  --grid-line: rgba(20,184,166,0.07);
  /* Typography */
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  /* Spacing & Radius – Adjusted for better flow */
  --space-xs: 0.375rem;
  --space-s: 0.75rem;
  --space-m: 1.25rem;
  --space-l: 2.5rem;
  --radius: 0.875rem;
  --shadow: 0 4px 12px rgba(0,0,0,0.4);
  --transition: all 200ms ease-out;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-fg);
  background-image: linear-gradient(180deg, rgba(14,165,233,0.06) 0%, transparent 60%),
                    repeating-linear-gradient(45deg, var(--grid-line) 0 1px, transparent 1px 20px);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  margin: 0 0 var(--space-s);
  line-height: 1.3;
  color: var(--color-primary);
}

p { margin: 0 0 var(--space-s); }

a {
  color: var(--color-accent);
  text-decoration: underline dotted var(--color-accent);
  text-underline-offset: 2px;
}

a:hover, a:focus {
  color: var(--color-primary);
  text-decoration: underline solid;
}

code, pre {
  font-family: var(--font-mono);
  background: rgba(124,58,237,0.1);
  padding: 0.2em 0.4em;
  border-radius: 0.375rem;
}

pre {
  overflow-x: auto;
  padding: var(--space-s);
  margin: var(--space-m) 0;
  border: 1px solid var(--grid-line);
}

.container {
  width: min(95vw, 75rem);
  margin-inline: auto;
  padding: var(--space-l) var(--space-m);
}

.card {
  background: #111827;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--space-l);
  backdrop-filter: blur(4px);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(20,184,166,0.2);
}

.button {
  display: inline-flex;
  align-items: center;
  padding: var(--space-s) var(--space-l);
  border-radius: var(--radius);
  font-weight: 600;
  background: var(--color-primary);
  color: #0d1117;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.button:hover,
.button:focus {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(20,184,166,0.4);
}

/* Grid utilities */
.grid { display: grid; gap: var(--space-l); }
.flex { display: flex; gap: var(--space-m); align-items: center; }
.justify-between { justify-content: space-between; }

/* Accent stripe */
.stripe-top {
  position: relative;
  overflow: hidden;
}
.stripe-top::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

/* Focus ring */
.focus-outline {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* List styles for utility */
ul, ol {
  margin: var(--space-m) 0;
  padding-left: var(--space-l);
  list-style-type: none;
}

ul li::before {
  content: '➔ ';
  color: var(--color-accent);
  margin-right: var(--space-xs);
}

/* Dark↔Light toggle support */
@media (prefers-color-scheme: light) {
  :root {
    --color-bg: #f8fafc;
    --color-fg: #0d1117;
    --grid-line: rgba(15,118,110,0.05);
    --shadow: 0 2px 6px rgba(0,0,0,0.1);
  }
  body {
    background-image: linear-gradient(180deg, rgba(124,58,237,0.06) 0%, transparent 60%),
                      repeating-linear-gradient(45deg, var(--grid-line) 0 1px, transparent 1px 20px);
  }
  .card { background: white; }
  .button { color: white; }
  code, pre { background: rgba(124,58,237,0.05); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
  .card:hover, .button:hover, .button:focus { transform: none; }
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  border: 0;
}

/* Nav enhancements */
nav a {
  position: relative;
  padding-bottom: var(--space-xs);
  transition: var(--transition);
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 300ms ease;
}

nav a:hover::after,
nav a:focus::after {
  width: 100%;
}