/*
Theme Name: O'Leary Professional
Theme URI: https://www.g-oleary.com
Author: Graden J. O'Leary
Description: A clean, accessible single-page professional theme covering professional/academic background, Rotax 9 series line maintenance services, and process-improvement consulting. Mobile and desktop friendly, built with Lexend.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: oleary-professional
*/

/* ---------- Design tokens ---------- */
:root {
  --ink: #1a1f24;
  --ink-soft: #44505b;
  --line: #d9dee3;
  --bg: #ffffff;
  --bg-alt: #f4f6f8;
  --accent: #1f5673;
  --accent-dark: #143b50;
  --focus: #b8540f;
  --maxw: 1080px;
  --gap: clamp(1.25rem, 4vw, 3rem);
  --radius: 6px;
  --font: "Lexend", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}
body {
  margin: 0;
  font-family: var(--font);
  font-weight: 300;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 1.0625rem;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-weight: 600; line-height: 1.2; color: var(--ink); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.1rem); margin: 0 0 0.4em; }
h3 { font-size: 1.2rem; margin: 0 0 0.4em; }
p { margin: 0 0 1rem; max-width: 65ch; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent-dark); }

/* Visible focus for keyboard users */
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 1000;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; color: #fff; }

/* ---------- Layout helpers ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gap); }
.section { padding: clamp(3rem, 8vw, 5.5rem) 0; }
.section--alt { background: var(--bg-alt); }
.section__lead { color: var(--ink-soft); max-width: 60ch; margin-bottom: 2rem; }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.95);
  backdrop-filter: saturate(180%) blur(6px);
  border-bottom: 1px solid var(--line);
  z-index: 100;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.85rem var(--gap);
}
.brand { font-weight: 600; font-size: 1.15rem; color: var(--ink); text-decoration: none; }
.brand span { color: var(--accent); }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.5rem 0.7rem;
  font: inherit;
  cursor: pointer;
  color: var(--ink);
}
.nav { display: flex; gap: 1.5rem; align-items: center; }
.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 400;
  font-size: 0.98rem;
}
.nav a:hover { color: var(--accent); }
.nav .btn { color: #fff; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 0.7rem 1.3rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 400;
  border: 1px solid var(--accent);
  transition: background 0.15s ease;
}
.btn:hover { background: var(--accent-dark); color: #fff; }
.btn--ghost {
  background: transparent;
  color: var(--accent);
}
.btn--ghost:hover { background: var(--accent); color: #fff; }

/* ---------- Hero ---------- */
.hero {
  padding: clamp(3.5rem, 10vw, 7rem) 0 clamp(3rem, 8vw, 5rem);
  border-bottom: 1px solid var(--line);
}
.hero h1 {
  font-size: clamp(2rem, 6vw, 3.4rem);
  font-weight: 600;
  margin: 0 0 0.5rem;
  letter-spacing: -0.01em;
}
.hero .tagline {
  font-size: clamp(1.05rem, 2.5vw, 1.35rem);
  color: var(--accent);
  font-weight: 400;
  margin: 0 0 1.25rem;
}
.hero p.intro { color: var(--ink-soft); font-size: 1.1rem; }
.hero__actions { margin-top: 1.75rem; display: flex; flex-wrap: wrap; gap: 0.85rem; }

/* ---------- Cards / grid ---------- */
.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
}
.section--alt .card { background: #fff; }
.card h3 { color: var(--accent-dark); }
.card ul { margin: 0.5rem 0 0; padding-left: 1.1rem; color: var(--ink-soft); }
.card li { margin-bottom: 0.4rem; }

/* Two-column prose */
.cols { display: grid; gap: var(--gap); grid-template-columns: 1fr; }
@media (min-width: 720px) {
  .cols--2 { grid-template-columns: 1fr 1fr; }
}

/* Credential list */
.creds { list-style: none; margin: 0; padding: 0; }
.creds li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
}
.creds li:last-child { border-bottom: none; }
.creds strong { color: var(--ink); font-weight: 600; }

/* Notice / disclaimer */
.notice {
  font-size: 0.92rem;
  color: var(--ink-soft);
  border-left: 3px solid var(--accent);
  padding: 0.5rem 0 0.5rem 1rem;
  margin-top: 1.5rem;
  background: var(--bg-alt);
}
.section--alt .notice { background: #fff; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: #c9d2da;
  padding: 2.5rem 0;
}
.site-footer a { color: #fff; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; }
.social { display: flex; gap: 1.25rem; align-items: center; }
.social a { display: inline-flex; align-items: center; gap: 0.4rem; text-decoration: none; }

/* ---------- Responsive nav ---------- */
@media (max-width: 720px) {
  .nav-toggle { display: inline-block; }
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 0.5rem var(--gap) 1rem;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 0.65rem 0; border-bottom: 1px solid var(--line); }
  .nav .btn { margin-top: 0.6rem; text-align: center; }
}

/* ---------- Accessibility utility ---------- */
.screen-reader-text {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Contact form ---------- */
.contact-form { max-width: 38rem; }
.form-row { margin-bottom: 1.25rem; }
.form-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}
@media (min-width: 540px) {
  .form-grid { grid-template-columns: 1fr 1fr; }
}
.contact-form label {
  display: block;
  font-weight: 400;
  font-size: 0.95rem;
  color: var(--ink);
  margin-bottom: 0.35rem;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  font: inherit;
  font-weight: 300;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.6rem 0.75rem;
  transition: border-color 0.15s ease;
}
.section--alt .contact-form input,
.section--alt .contact-form select,
.section--alt .contact-form textarea { background: #fff; }
.contact-form textarea { resize: vertical; min-height: 7rem; }
.contact-form input:hover,
.contact-form select:hover,
.contact-form textarea:hover { border-color: var(--ink-soft); }
.contact-form input:focus-visible,
.contact-form select:focus-visible,
.contact-form textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 1px;
  border-color: var(--accent);
}
.contact-form .btn { cursor: pointer; }

/* Field hints */
.form-hint {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: 0.4rem;
}
.form-hint--foot { margin-top: 1rem; }

/* Honeypot — present for bots, hidden from people and screen readers */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Submission feedback */
.form-message {
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.75rem;
  background: var(--bg-alt);
  border-left: 3px solid var(--accent);
}
.section--alt .form-message { background: #fff; }
.form-message strong {
  display: block;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.form-message p { margin: 0; color: var(--ink-soft); max-width: 60ch; }
.form-message--error { border-left-color: var(--focus); }