/* cybercreek.us — one stylesheet. Canyon palette, system fonts, fluid layout. */

:root {
  color-scheme: dark light;
  --ground: #0f1e33;
  --panel: #17283f;
  --panel-alt: #132540;
  --line: #2a3d57;
  --text: #f3ede4;
  --muted: #a9b39d;
  --accent: #e07a52;
  --accent-fill: #d4633a;
  --on-accent: #0f1e33;
  --cliff-far: #4a3140;
  --cliff-near: #6b3a30;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  --container: 1120px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, sans-serif;
  --header-h: 4.5rem;
}

/* Light palette: system preference unless the visitor chose dark, or an explicit light choice. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --ground: #f5efe6;
    --panel: #ffffff;
    --panel-alt: #ece4d8;
    --line: #d8cfc2;
    --text: #23303f;
    --muted: #5b6656;
    --accent: #a8401f;
    --accent-fill: #b8482a;
    --on-accent: #ffffff;
    --cliff-far: #d9b7a0;
    --cliff-near: #c98a68;
    --shadow: 0 12px 32px rgba(35, 48, 63, 0.12);
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --ground: #f5efe6;
  --panel: #ffffff;
  --panel-alt: #ece4d8;
  --line: #d8cfc2;
  --text: #23303f;
  --muted: #5b6656;
  --accent: #a8401f;
  --accent-fill: #b8482a;
  --on-accent: #ffffff;
  --cliff-far: #d9b7a0;
  --cliff-near: #c98a68;
  --shadow: 0 12px 32px rgba(35, 48, 63, 0.12);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

* { box-sizing: border-box; }

html {
  font-family: var(--font);
  line-height: 1.6;
  color: var(--text);
  background: var(--ground);
  -webkit-text-size-adjust: 100%;
}

body { margin: 0; }

.container {
  width: min(100% - 2 * clamp(1rem, 4vw, 2.5rem), var(--container));
  margin-inline: auto;
}

a { color: var(--accent); }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

p { margin: 0; }

p + p { margin-top: 0.75rem; }

/* Buttons */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.7rem 1.5rem;
  border-radius: 999px;
  border: 2px solid var(--accent-fill);
  background: var(--accent-fill);
  color: var(--on-accent);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.button:hover { filter: brightness(1.1); }

.button-icon {
  margin-right: 0.45em;
  font-size: 1.1em;
  line-height: 1;
}

.button-small {
  padding: 0.5rem 1.1rem;
  font-size: 0.95rem;
}

.button-outline {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent);
}

.button-outline:hover {
  background: var(--accent-fill);
  color: var(--on-accent);
  filter: none;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: var(--header-h);
}

.wordmark {
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.site-nav {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.site-nav ul {
  flex: 1;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0 0.25rem;
}

.site-nav a:not(.button) {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.5rem 0.75rem;
  color: var(--text);
  text-decoration: none;
  border-radius: 8px;
}

.site-nav a:not(.button):hover,
.site-nav a:not(.button):focus-visible {
  color: var(--accent);
  background: var(--panel);
}

.menu-toggle {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.theme-switch {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
}

.theme-switch button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 36px;
  padding: 0 0.6rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}

.theme-switch button[aria-pressed="true"] {
  background: var(--accent-fill);
  color: var(--on-accent);
}

.theme-switch button:hover:not([aria-pressed="true"]) { color: var(--text); }

@media (min-width: 1000px) {
  .theme-label {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
  }
}

.menu-toggle .icon-close,
.menu-toggle[aria-expanded="true"] .icon-bars { display: none; }
.menu-toggle[aria-expanded="true"] .icon-close { display: block; }

@media (min-width: 1000px) {
  .menu-toggle { display: none; }
}

@media (max-width: 999.98px) {
  .header-row { flex-wrap: wrap; }
  .site-nav {
    flex-basis: 100%;
    order: 3;
  }
  .site-nav.collapsible {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    padding-bottom: 1rem;
  }
  .site-nav.collapsible.open { display: flex; }
  .site-nav.collapsible ul { flex-direction: column; }
  .site-nav.collapsible .nav-contact { display: none; }
  .site-nav.collapsible a:not(.button) { width: 100%; }
  .site-nav.collapsible .theme-switch,
  .site-nav.collapsible .button {
    align-self: flex-start;
    margin-left: 0.75rem;
  }
}

.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;
}

/* Hero */

.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(4rem, 12vw, 8rem) clamp(9rem, 22vw, 15rem);
  text-align: center;
  background:
    radial-gradient(60% 50% at 50% 0%, color-mix(in srgb, var(--accent-fill) 18%, transparent), transparent 70%),
    var(--ground);
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.hero h1 {
  font-size: clamp(3rem, 1.5rem + 8vw, 6.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.tagline {
  font-size: clamp(1.15rem, 0.9rem + 1.2vw, 1.6rem);
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.cliffs {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  width: 100%;
  height: clamp(90px, 18vw, 220px);
  display: block;
}

.cliffs-far { fill: var(--cliff-far); }
.cliffs-near { fill: var(--cliff-near); }

/* Sections */

.section {
  padding-block: clamp(3.5rem, 8vw, 6rem);
  scroll-margin-top: var(--header-h);
}

.section-alt { background: var(--panel-alt); }

.section h2 {
  font-size: clamp(1.9rem, 1.2rem + 2.5vw, 2.75rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.lede {
  max-width: 60ch;
  margin: calc(-1 * clamp(1rem, 3vw, 1.5rem)) auto clamp(2rem, 5vw, 3rem);
  text-align: center;
  font-size: 1.2rem;
  color: var(--muted);
}

.subheading {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.grid + .subheading { margin-top: 3rem; }

/* Grid and cards */

.grid {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.5rem);
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-1 { grid-template-columns: minmax(0, 1fr); }

@media (max-width: 899.98px) {
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 > :last-child:nth-child(odd) { grid-column: 1 / -1; }
}

@media (max-width: 639.98px) {
  .grid-2,
  .grid-3 { grid-template-columns: minmax(0, 1fr); }
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.card h3,
.card h4 {
  font-size: 1.3rem;
  font-weight: 700;
}

.card p { color: var(--muted); }

.card-action .button {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 0.6rem;
}

.card-action p { margin-bottom: 0.5rem; }

.note {
  display: inline-block;
  margin-left: 0.4rem;
  padding: 0.1rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  vertical-align: middle;
  letter-spacing: 0;
}

/* Contact */

.contact-panel {
  align-items: center;
  text-align: center;
  padding-block: clamp(2.5rem, 6vw, 4rem);
}

.contact-panel h2 { margin-bottom: 0; }

.contact-line {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 3.25rem;
  font-size: clamp(1.25rem, 1rem + 1.5vw, 1.75rem);
  color: var(--text);
  overflow-wrap: anywhere;
}

.contact-line .button { font-size: 1.05rem; }

.contact-line a { font-weight: 600; }

/* Footer */

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 2rem;
  color: var(--muted);
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
}