/* ==========================================================================
   Phillips Digital Solutions — one stylesheet, no JS.
   Dark terminal aesthetic: near-black green-shifted ground, phosphor-green
   accent, mono for headings/labels, sans for body. All decoration is CSS
   (the CSP allows no inline styles and no scripts).
   ========================================================================== */

:root {
  --bg: #070b08;
  --panel: #0c130e;
  --line: #1c2b20;
  --line-bright: #2c4534;
  --text: #b9c9be;
  --bright: #eaf6ee;
  --green: #3aff7e;
  --green-dim: #23a854;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--bg);
  background-image: radial-gradient(ellipse 80% 40% at 50% -10%, rgba(58, 255, 126, 0.07), transparent);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  min-height: 100vh;
}

/* CRT scanlines, barely there */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.18) 0 1px, transparent 1px 4px);
  opacity: 0.35;
}

/* ---------------------------------------------------------------- layout */

.wrap {
  max-width: 46rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.wrap-wide { max-width: 62rem; }

section { margin: 4.5rem 0; }

/* ------------------------------------------------------------------ nav */

header {
  border-bottom: 1px solid var(--line);
  padding: 1rem 0;
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 62rem;
  margin: 0 auto;
  padding: 0 1.25rem;
  font-family: var(--mono);
}

.logo {
  color: var(--green);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  letter-spacing: 0.04em;
}

.logo:hover { text-decoration: none; }

nav ul {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav ul a {
  display: inline-block;
  padding: 0.6rem 0.8rem; /* ≥44px tap target with line-height */
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
}

nav ul a:hover,
nav ul a[aria-current="page"] { color: var(--green); }

@media (max-width: 480px) {
  nav { gap: 0.25rem; }
  nav ul a { padding: 0.6rem 0.45rem; font-size: 0.85rem; }
}

/* ----------------------------------------------------------------- type */

h1, h2, h3 {
  font-family: var(--mono);
  color: var(--bright);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(1.7rem, 5.5vw, 2.6rem); margin: 0.75rem 0 1rem; }
h2 { font-size: clamp(1.25rem, 3.5vw, 1.6rem); margin: 0 0 1rem; }
h3 { font-size: 1.05rem; margin: 0 0 0.5rem; }

p { margin: 0 0 1rem; }

a {
  color: var(--green);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--green-dim);
}

a:hover { text-decoration-color: var(--green); }

strong { color: var(--bright); }

/* terminal-style section label:  $ pds --services */
.term {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--green-dim);
  margin: 0;
}

.term::before { content: "$ "; color: var(--green); }

/* blinking cursor on the hero line */
.cursor::after {
  content: "▊";
  color: var(--green);
  margin-left: 0.15em;
  animation: blink 1.2s steps(1) infinite;
}

@keyframes blink { 50% { opacity: 0; } }

.lead {
  font-size: 1.15rem;
  color: var(--bright);
}

.dim { color: var(--text); font-size: 0.95rem; }

/* ---------------------------------------------------------------- hero */

.hero {
  padding-top: 4.5rem;
  padding-bottom: 1rem;
}

/* -------------------------------------------------------------- blocks */

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 700px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.4rem 1.4rem 1.1rem;
}

.card:hover { border-color: var(--line-bright); }

.card .num {
  font-family: var(--mono);
  color: var(--green);
  font-size: 0.8rem;
  display: block;
  margin-bottom: 0.6rem;
}

.card ul {
  margin: 0.75rem 0 1rem;
  padding-left: 1.1rem;
}

.card li { margin-bottom: 0.35rem; }

.card li::marker { color: var(--green-dim); }

/* receipts: mono numbers that do the bragging */
.receipt {
  font-family: var(--mono);
  color: var(--green);
}

/* case study panel */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--green);
  padding: 1.5rem 1.6rem 1.2rem;
  margin: 1.5rem 0;
}

.panel p:last-child { margin-bottom: 0; }

/* ----------------------------------------------------------------- CTAs */

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.75rem 0;
}

.btn {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--green);
  background: transparent;
  border: 1px solid var(--green-dim);
  padding: 0.75rem 1.25rem; /* ≥44px tall */
  text-decoration: none;
}

.btn:hover {
  background: rgba(58, 255, 126, 0.08);
  border-color: var(--green);
}

.btn-solid {
  background: var(--green);
  color: var(--bg);
  border-color: var(--green);
  font-weight: 700;
}

.btn-solid:hover { background: #63ff99; }

.btn::before { content: "> "; }

/* ---------------------------------------------------------------- footer */

footer {
  border-top: 1px solid var(--line);
  margin-top: 5rem;
  padding: 2rem 0 3rem;
  font-size: 0.9rem;
}

footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  justify-content: space-between;
}

footer p { margin: 0; }

/* ------------------------------------------------------------------ 404 */

.notfound {
  text-align: center;
  padding: 6rem 0 4rem;
}

.notfound .cta-row { justify-content: center; }

.notfound .code {
  font-family: var(--mono);
  font-size: clamp(4rem, 20vw, 8rem);
  color: var(--green);
  text-shadow: 0 0 24px rgba(58, 255, 126, 0.35);
  margin: 0;
  line-height: 1;
}

/* ----------------------------------------------------- reduced motion */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cursor::after { animation: none; }
}