/* ---------------------------------------------------------------------------
   Professional Training - stylesheet
   Colours and spacing live in the :root block below, so you can restyle the
   whole site by changing a few values here.
---------------------------------------------------------------------------- */

:root {
  --navy: #10243f;
  --navy-light: #1d3a5f;
  --accent: #0e9488;
  --accent-dark: #0b7a70;
  --text: #22303f;
  --text-muted: #5b6b7c;
  --bg: #ffffff;
  --bg-alt: #f4f7fa;
  --border: #e1e8ef;

  --max-width: 1080px;
  --gap: 1.75rem;
  --radius: 10px;
}

/* --- Base ---------------------------------------------------------------- */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  /* Stops the sticky header from covering a section heading when you jump to it. */
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

h1, h2, h3 {
  line-height: 1.25;
  color: var(--navy);
  margin-top: 0;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.1rem); margin-bottom: 1.5rem; }
h3 { font-size: 1.2rem; margin-bottom: 0.6rem; }

p { margin-top: 0; }

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.container.narrow {
  max-width: 760px;
}

.lead {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* --- Header -------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--navy);
  box-shadow: 0 1px 6px rgba(16, 36, 63, 0.18);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}

.brand {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #ffffff;
  text-decoration: none;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.4rem;
}

.nav a {
  color: #cfdbe8;
  text-decoration: none;
  font-size: 0.95rem;
  padding: 0.15rem 0;
  border-bottom: 2px solid transparent;
}

.nav a:hover,
.nav a:focus {
  color: #ffffff;
  border-bottom-color: var(--accent);
}

/* --- Hero ---------------------------------------------------------------- */

/* The photo sits under a dark navy wash so the white text stays readable.
   To swap the picture, drop a new file into static/images/ and change the
   url(...) below. To remove it, delete the url(...) line and its comma. */
.hero {
  background-image:
    linear-gradient(160deg, rgba(16, 36, 63, 0.92) 0%, rgba(29, 58, 95, 0.82) 100%),
    url("images/hero.jpg");
  background-size: cover;
  background-position: center;
  color: #ffffff;
  padding: clamp(3.5rem, 10vw, 6.5rem) 0;
}

.hero-inner {
  max-width: 760px;
}

/* The promotional badge above the headline. It only appears when HERO has an
   "offer" line in content.py. */
.hero-offer {
  display: inline-block;
  background: var(--accent);
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.hero h1 {
  color: #ffffff;
  margin-bottom: 1rem;
}

.hero-tagline {
  font-size: 1.15rem;
  color: #cfdbe8;
  margin-bottom: 2rem;
}

.button {
  display: inline-block;
  background: var(--accent);
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  transition: background 0.15s ease, transform 0.15s ease;
}

.button:hover,
.button:focus {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

/* --- Sections ------------------------------------------------------------ */

.section {
  padding: clamp(3rem, 7vw, 4.5rem) 0;
}

.section-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* Cards reflow from several columns to one on narrow screens by themselves. */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--gap);
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: 0 1px 3px rgba(16, 36, 63, 0.05);
}

.card p {
  color: var(--text-muted);
  margin-bottom: 0;
}

.duration {
  margin-top: 1rem !important;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-dark) !important;
}

.benefit {
  border-top: 3px solid var(--accent);
}

/* --- Testimonials -------------------------------------------------------- */

.quote {
  margin: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.quote blockquote {
  margin: 0 0 1.25rem;
  font-size: 1.05rem;
  color: var(--text);
}

.quote figcaption {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
  padding-top: 0.9rem;
}

.quote-name {
  font-weight: 600;
  color: var(--navy);
}

.quote-role {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* --- Contact ------------------------------------------------------------- */

.contact-list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
}

.contact-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
}

.contact-label {
  min-width: 90px;
  font-weight: 600;
  color: var(--navy);
}

/* --- Footer -------------------------------------------------------------- */

.site-footer {
  background: var(--navy);
  color: #a9bccf;
  padding: 1.75rem 0;
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

/* --- Small screens ------------------------------------------------------- */

@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    gap: 0.25rem 1.1rem;
  }
}