/* ==========================================================================
   Life Action — shared styles
   Rules used across every page. Page-specific styles live in each page's
   <style> block, which loads after this file so it can override.
   ========================================================================== */

/* ---------- Theme tokens ---------- */
:root {
  color-scheme: light dark;
  --ink: #16161a;
  --muted: #5b5b63;
  --paper: #f4f4f1;
  --white: white;
  --accent-1: #7c3aed;
  --accent-2: #2563eb;
  --gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  --line: #e4e4df;
  --card-bg: white;
  --footer-bg: #16161a;
  --footer-text: #b8b8bf;
  --footer-link: #e8e8ec;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
    --ink: #ececea;
    --muted: #b0b0b8;
    --paper: #15151a;
    --white: #20202a;
    --accent-1: #a78bfa;
    --accent-2: #60a5fa;
    --gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    --line: #34343e;
    --card-bg: #20202a;
    --footer-bg: #0c0c0f;
    --footer-text: #9c9ca6;
    --footer-link: #e4e4ea;
  }
}
[data-theme="light"] {
  color-scheme: light;
  --ink: #16161a;
  --muted: #5b5b63;
  --paper: #f4f4f1;
  --white: white;
  --accent-1: #7c3aed;
  --accent-2: #2563eb;
  --gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  --line: #e4e4df;
  --card-bg: white;
  --footer-bg: #16161a;
  --footer-text: #b8b8bf;
  --footer-link: #e8e8ec;
}
[data-theme="dark"] {
  color-scheme: dark;
  --ink: #ececea;
  --muted: #b0b0b8;
  --paper: #15151a;
  --white: #20202a;
  --accent-1: #a78bfa;
  --accent-2: #60a5fa;
  --gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  --line: #34343e;
  --card-bg: #20202a;
  --footer-bg: #0c0c0f;
  --footer-text: #9c9ca6;
  --footer-link: #e4e4ea;
}

/* ---------- Base ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.7;
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s ease, color 0.3s ease;
}
h1, h2, h3 {
  font-family: "Archivo", "Inter", sans-serif;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--ink);
}

/* ---------- Accessibility ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 300;
  background: var(--ink);
  color: var(--white);
  padding: 0.7rem 1.1rem;
  border-radius: 0 0 4px 0;
  font-weight: 700;
  text-decoration: none;
  font-size: 0.9rem;
}
.skip-link:focus {
  left: 0;
}
:focus-visible {
  outline: 3px solid var(--accent-2);
  outline-offset: 2px;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ---------- Gradient text ---------- */
.grad-text, .logo b, nav a.active, .kicker, footer .links a:hover {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- Top bar & header ---------- */
.topbar {
  background: var(--gradient);
  color: white;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-align: center;
  padding: 0.55rem 1rem;
  font-weight: 600;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
header .bar {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}
.logo {
  font-family: "Archivo", sans-serif;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  color: var(--ink);
}
nav ul {
  list-style: none;
  display: flex;
  gap: 1.7rem;
  flex-wrap: wrap;
}
nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
nav a:hover {
  color: var(--ink);
  border-color: var(--line);
}
nav a.active {
  border-color: var(--accent-1);
}

/* ---------- Theme switcher ---------- */
.theme-switch {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin-left: 1rem;
}
.theme-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  line-height: 0;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s;
}
.theme-btn[data-theme="system"] {
  width: 3rem;
}
.theme-btn svg {
  width: 16px;
  height: 16px;
  display: block;
  flex-shrink: 0;
}
.theme-btn:hover {
  border-color: var(--accent-1);
  color: var(--ink);
}
.theme-btn.active {
  background: var(--gradient);
  border-color: transparent;
  color: white;
}

/* ---------- Page hero (interior pages; each page sets its own background image) ---------- */
.page-hero {
  color: white;
  padding: 6rem 1.5rem;
}
.page-hero .inner {
  max-width: 1160px;
  margin: 0 auto;
}
.page-hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.3rem);
  max-width: 760px;
  color: white;
}
.page-hero p {
  max-width: 620px;
  color: #d6d6db;
  font-size: 1.05rem;
}

/* ---------- Kicker ---------- */
.kicker {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.9rem;
}
.kicker::before {
  content: "";
  width: 32px;
  height: 2px;
  background: var(--gradient); /* decorative */
}
.kicker.center {
  justify-content: center;
}
.kicker.center::before {
  display: none;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: var(--gradient);
  color: white;
  padding: 0.85rem 1.9rem;
  border-radius: 3px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: filter 0.2s, transform 0.2s;
}
.btn:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

/* ---------- Sections ---------- */
.section {
  padding: 5rem 1.5rem;
}

/* ---------- Cards ---------- */
.card {
  position: relative;
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 1.8rem;
  transition: transform 0.2s, box-shadow 0.2s;
}
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient); /* decorative */
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(0,0,0,0.08);
}
.card p {
  font-size: 0.92rem;
  color: var(--muted);
}

/* ---------- Footer ---------- */
footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  text-align: center;
  padding: 3rem 1.5rem;
}
footer .links {
  margin-bottom: 1.2rem;
}
footer .links a {
  color: var(--footer-link);
  text-decoration: none;
  margin: 0 0.9rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
footer p {
  font-size: 0.8rem;
  opacity: 0.75;
}

/* Links on dark backgrounds (e.g. the footer credit) */
.hlink-darkbg {
  color: #58a6ff;
  transition: color 0.2s;
}
.hlink-darkbg:visited {
  color: #c4b5fd;
  transition: color 0.2s;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  header .bar {
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: center;
  }
  .theme-switch {
    margin-left: 0;
  }
}
@media (max-width: 760px) {
  .page-hero {
    padding: 4rem 1rem;
  }
}