/* =========================================================
   JPARO Systems — Design Tokens & Base Styles
   ========================================================= */

:root {
  /* Brand colors */
  --color-bg: #0A0A0A;
  --color-bg-elevated: #141414;
  --color-bg-card: #181818;
  --color-border: #262626;
  --color-border-strong: #333333;
  --color-text: #FAFAFA;
  --color-text-muted: #A3A3A3;
  --color-text-dim: #6B6B6B;

  --color-green: #00E65A;      /* primary accent — matches logo */
  --color-green-glow: rgba(0, 230, 90, 0.4);
  --color-cyan: #00E5E5;       /* secondary accent */
  --color-cyan-glow: rgba(0, 229, 229, 0.3);

  /* Type scale (clamp for fluid responsive) */
  --text-xs: clamp(0.75rem, 0.7rem + 0.15vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.825rem + 0.2vw, 0.9375rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.4vw, 1.25rem);
  --text-xl: clamp(1.5rem, 1.3rem + 1vw, 1.875rem);
  --text-2xl: clamp(2rem, 1.6rem + 2vw, 2.75rem);
  --text-hero: clamp(2.5rem, 1.8rem + 4vw, 4.5rem);

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

  /* Layout */
  --container-max: 1280px;
  --container-narrow: 880px;
  --header-height: 72px;

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

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 32px var(--color-green-glow);
  --shadow-glow-cyan: 0 0 32px var(--color-cyan-glow);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration: 250ms;
  --duration-slow: 400ms;
}

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

html, body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

button {
  font: inherit;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
}

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

ul, ol { list-style: none; }

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-hero); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

.font-mono {
  font-family: 'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
  letter-spacing: -0.01em;
}

/* Layout primitives */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (min-width: 768px) {
  .container { padding: 0 var(--space-8); }
}

.section {
  padding: clamp(var(--space-16), 10vw, var(--space-32)) 0;
}

.section-tight {
  padding: clamp(var(--space-12), 6vw, var(--space-20)) 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 14px 24px;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all var(--duration) var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-green);
  color: var(--color-bg);
  box-shadow: 0 0 0 1px var(--color-green);
}

.btn-primary:hover {
  box-shadow: 0 0 24px var(--color-green-glow), 0 0 0 1px var(--color-green);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

.btn-secondary:hover {
  border-color: var(--color-green);
  color: var(--color-green);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding: 14px 16px;
}

.btn-ghost:hover {
  color: var(--color-text);
}

.btn-lg {
  padding: 18px 32px;
  font-size: var(--text-base);
}

/* Pills / chips */
.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(0, 230, 90, 0.08);
  color: var(--color-green);
  border: 1px solid rgba(0, 230, 90, 0.2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-family: 'JetBrains Mono', monospace;
}

.pill-cyan {
  background: rgba(0, 229, 229, 0.08);
  color: var(--color-cyan);
  border-color: rgba(0, 229, 229, 0.2);
}

.pill-dim {
  background: var(--color-bg-card);
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

/* Cards */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--duration) var(--ease-out);
}

.card:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
}

.card-interactive:hover {
  border-color: var(--color-green);
  box-shadow: 0 0 0 1px var(--color-green), 0 8px 32px rgba(0, 230, 90, 0.1);
}

/* Grid system */
.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Utility */
.text-muted { color: var(--color-text-muted); }
.text-dim { color: var(--color-text-dim); }
.text-green { color: var(--color-green); }
.text-cyan { color: var(--color-cyan); }

.eyebrow {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.eyebrow-green {
  color: var(--color-green);
}

/* Section heading block */
.section-heading {
  margin-bottom: var(--space-12);
  max-width: 720px;
}

.section-heading h2 {
  margin-bottom: var(--space-4);
}

.section-heading p {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  line-height: 1.5;
}

/* Code/inline tech */
code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9em;
  background: var(--color-bg-elevated);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--color-border);
  color: var(--color-green);
}

/* Divider */
.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-border-strong), transparent);
  margin: var(--space-16) 0;
}

/* Focus */
:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Animations */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-up {
  animation: fade-up 0.6s var(--ease-out) both;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}