/* =========================================================
   NAUTICAL KNOWLEDGE – GLOBAL STYLES
   ========================================================= */

/* ---------- ROOT COLORS ---------- */
:root {
  --nk-bg: #020b1a;
  --nk-bg-dark: #020b1a;
  --nk-bg-hero: #031428;
  --nk-bg-section-light: #f4f7fc;
  --nk-bg-card-light: #ffffff;
  --nk-bg-card-dark: #071a33;

  --nk-primary: #ffb321;
  --nk-primary-dark: #f09a00;

  --nk-accent: #0c78d4;
  --nk-accent-dark: #07508d;

  --nk-text-main: #e7f0ff;
  --nk-text-muted: #9fb1d5;
  --nk-text-dark: #0a1730;

  --nk-border-subtle: rgba(255, 255, 255, 0.08);
  --nk-radius-lg: 18px;
}

/* ---------- GLOBAL RESET ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--nk-bg);
  color: var(--nk-text-main);
  line-height: 1.5;
}

.container {
  width: min(1120px, 100% - 32px);
  margin: 0 auto;
}

/* =========================================================
   HEADER / NAV
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: radial-gradient(
    circle at left,
    #075c86 0,
    #043a66 40%,
    #02294a 80%
  );
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--nk-text-main);
}

.brand-logo {
  height: 102px;
  width: auto;
  display: block;
}

.brand-name {
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

/* NAVIGATION */
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--nk-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 4px 0;
  position: relative;
}

.main-nav a.active,
.main-nav a:hover {
  color: #ffffff;
}

.main-nav a.active::after,
.main-nav a:hover::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  height: 2px;
  width: 100%;
  background: var(--nk-primary);
  border-radius: 999px;
}

/* Lake temp badge */
.lake-temp-widget {
  background: rgba(3, 17, 39, 0.9);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.8rem;
  color: var(--nk-text-main);
  display: inline-flex;
  gap: 6px;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.lake-temp-widget .label {
  font-weight: 500;
  opacity: 0.85;
}

.lake-temp-widget .value {
  font-weight: 600;
}

/* =========================================================
   HERO
   ========================================================= */

.hero {
  position: relative;
  min-height: 72vh;
  padding: 96px 0 120px;
  display: flex;
  align-items: center;
  background-color: var(--nk-bg-hero);
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 48px;
  align-items: center;
  z-index: 1;
}

.hero-copy {
  max-width: 640px;
  padding: 1.75rem 2rem;
  background: rgba(0, 0, 0, 0.38);
  border-radius: 18px;
  color: #fff;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.hero-kicker {
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--nk-text-muted);
  margin: 0 0 10px;
}

.hero h1 {
  font-size: 2.6rem;
  line-height: 1.1;
  margin: 0 0 16px;
}

.hero-lead {
  margin: 0 0 18px;
  color: var(--nk-text-main);
}

.hero-bullets {
  margin: 0 0 20px;
  padding-left: 1.2rem;
  color: var(--nk-text-main);
  font-size: 0.98rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.hero-note {
  font-size: 0.82rem;
  color: var(--nk-text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.btn-primary {
  background: var(--nk-primary);
  color: #1c1203;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
}

.btn-primary:hover {
  background: var(--nk-primary-dark);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.45);
}

.btn-ghost:hover {
  background: rgba(3, 22, 53, 0.85);
}

/* Hero boat image */
.hero-boat-wrap {
  position: absolute;
  left: 50%;
  bottom: -28px;
  transform: translateX(-50%);
  z-index: 0;
}

.hero-boat {
  max-width: 520px;
  width: 60vw;
  height: auto;
  opacity: 0.96;
}

/* HERO SIDE CARD */
.hero-card {
  max-width: 360px;
  background: rgba(3, 17, 39, 0.92);
  border-radius: var(--nk-radius-lg);
  padding: 20px 22px 18px;
  color: #ffffff;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  position: relative;
  z-index: 1;
}

.hero-card h2 {
  margin: 0 0 10px;
  font-size: 1.15rem;
}

.hero-card dl {
  margin: 0 0 10px;
}

.hero-card dl div {
  margin-bottom: 6px;
}

.hero-card dt {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--nk-text-muted);
}

.hero-card dd {
  margin: 0;
  font-size: 0.9rem;
}

.hero-card-note {
  margin: 8px 0 0;
  font-size: 0.82rem;
  color: var(--nk-text-muted);
}

/* =========================================================
   SECTION SYSTEM
   ========================================================= */

main {
  background: radial-gradient(circle at top, #031225 0, #020b1a 48%, #020816 100%);
}

.section {
  padding: 72px 0;
}

.section-light {
  padding: 72px 0;
  background: var(--nk-bg-section-light);
  color: var(--nk-text-dark);
}

.section-header {
  margin-bottom: 24px;
}

.section-kicker {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--nk-text-muted);
  margin: 0 0 6px;
}

.section-light .section-kicker {
  color: #7b8ca7;
}

.section-header h2 {
  margin: 0;
  font-size: 1.8rem;
}

.section-intro {
  max-width: 720px;
  margin: 10px 0 32px;
  color: var(--nk-text-muted);
}

.section-light .section-intro {
  color: #4b5970;
}

/* =========================================================
   COURSE GRID (WHITE BACKGROUND)
   ========================================================= */

.section-light.section-courses {
  background: #ffffff;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.section-light .card,
.card-grid.card-grid-courses .card {
  background: var(--nk-bg-card-light);
  color: var(--nk-text-dark);
  border-radius: var(--nk-radius-lg);
  padding: 20px 20px 18px;
  box-shadow: 0 16px 40px rgba(5, 20, 45, 0.18);
  border: 1px solid rgba(3, 16, 38, 0.05);
}

.section-light .card h3,
.section-light .card p,
.card-grid.card-grid-courses .card h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 1rem;
}

/* FIXED — Prevent overlap of CORE COURSE label */
/* FIX: keep CORE COURSE label from overlapping the title */
/* CORE COURSE label above Docking 101, no overlap */
.card-tagged {
  /* same card styling as normal card; no special positioning needed */
}

.card-tagged .card-tag {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 600;
  color: #c27300;
  margin-bottom: 4px; /* space between label and "Docking 101" */
}

.card-tagged h3 {
  margin-top: 0; /* keeps heading tight under the label */
}



/* Simple illustration layout */
.illustration-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.illustration-grid figure {
  margin: 0;
}

.illustration-grid img {
  width: 100%;
  border-radius: var(--nk-radius-lg);
  display: block;
}

.illustration-grid figcaption {
  font-size: 0.85rem;
  margin-top: 6px;
  color: #4b5970;
}

/* Forms (contact, etc.) */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 10px;
}

.form-field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: #2a3750;
}

.form-field input,
.form-field select,
.form-field textarea {
  padding: 9px 10px;
  border-radius: 10px;
  border: 1px solid #ccd5e5;
  font-size: 0.9rem;
  font-family: inherit;
}

.form-field textarea {
  min-height: 120px;
  resize: vertical;
}

/* =========================================================
   NEXT STEP – BLUE SECONDARY BUTTON WITH MATCHING SHADOW
   ========================================================= */
.next-steps .btn-ghost {
  background: #0c78d4;
  color: #ffffff;
  border: 1px solid #0a5ea8;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.30);
  transition: transform 0.12s ease, box-shadow 0.12s ease,
              background 0.12s ease, border-color 0.12s ease;
}

.next-steps .btn-ghost:hover {
  background: #07508d;
  border-color: #063b68;
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

/* =========================================================
   CTA BAND ABOVE FOOTER (BLUE GRADIENT)
   ========================================================= */

.cta-band {
  background: radial-gradient(circle at left, #075c86 0, #043a66 40%, #02294a 80%);
  padding: 22px 0;
  color: #ffffff;
}

.cta-band-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

/* =========================================================
   FOOTER
   ========================================================= */

.site-footer {
  background: #020712;
  color: var(--nk-text-muted);
  padding: 24px 0 40px;
  font-size: 0.8rem;
}

.footer-inner {
  text-align: center;
}

.footer-links {
  margin: 0 0 6px;
}

.footer-links a {
  color: var(--nk-text-muted);
  text-decoration: none;
  margin: 0 4px;
}

.footer-links a:hover {
  color: #ffffff;
}

.legal {
  margin: 0;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 900px) {
  .hero {
    padding: 72px 0 96px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .hero-copy {
    padding: 1.5rem 1.4rem;
  }

  .hero h1 {
    font-size: 2.1rem;
  }

  .hero-boat-wrap {
    bottom: -18px;
  }

  .hero-boat {
    max-width: 420px;
  }
}

@media (max-width: 800px) {
  .header-inner {
    flex-wrap: wrap;
  }

  .main-nav ul {
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}

@media (max-width: 600px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .main-nav ul {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    row-gap: 4px;
  }

  .lake-temp-widget {
    margin-top: 6px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }
}

/* =========================================================
   COURSE PAGE EXTRAS (DOCKING 101, ETC.)
   ========================================================= */

/* White content box so text is readable on courses */
.course-content-box {
  background: #ffffff;
  color: #0a1730;
  padding: 28px 28px 32px;
  border-radius: var(--nk-radius-lg);
  box-shadow: 0 16px 38px rgba(5, 20, 45, 0.25);
  margin-bottom: 32px;
  border: 1px solid rgba(3, 16, 38, 0.06);
}

.course-content-box h2,
.course-content-box h3,
.course-content-box p,
.course-content-box li {
  color: #0a1730;
}

/* Boat terminology / illustration images on course pages */
.boat-terminology-img {
  width: 100%;
  max-width: 600px;
  border-radius: var(--nk-radius-lg);
  display: block;
  margin: 0 auto;
  box-shadow: 0 16px 40px rgba(5, 20, 45, 0.35);
}

/* Simple list spacing for course sections */
.course-list {
  padding-left: 1.2rem;
}

/* Icons used for instructor worksheets section */
.worksheet-icon {
  width: 72px;
  height: 72px;
  display: block;
  margin-bottom: 10px;
  border-radius: 18px;
}

/* Optional: tighter single-column illustration wrapper */
.illustration {
  margin: 0;
  @media (max-width: 600px) {
  .brand-logo {
    height: 72px;
  }
}
}