@charset "UTF-8";
/*
 * Northbury Publishing — Main Stylesheet
 * Requires: Bootstrap 5.3 CDN, Bootstrap Icons, Playfair Display + Lato (Google Fonts)
 */

/* ============================================================
   1. Custom Properties
   ============================================================ */
:root {
  /* Brand palette */
  --nb-navy: #071923;        /* Very dark — body, hero, footer, dropdowns */
  --nb-dark-green: #143d50;  /* Primary brand — buttons, headings */
  --nb-green: #5aa6a3;       /* Soft teal — links, accents */
  --nb-light-green: #7fd0cc; /* Bright aqua — CTA, highlights */
  --nb-gold: #7fd0cc;        /* Bright aqua — accent role */
  --nb-light-gold: #eef6f5;  /* Pale mint — soft backgrounds */
  --nb-cream: #f4fbfa;       /* Very pale mint — light sections */
  --nb-muted: #536974;       /* Blue-gray — muted/body text */
  --nb-footer-muted: #b9d1d0;/* Muted mint-gray — footer secondary text */

  /* Aliases used in sub-page components */
  --col-forest: #143d50;
  --col-light-forest: #5aa6a3;
  --col-gold: #7fd0cc;

  /* Typography */
  --default-font: "Lato", system-ui, sans-serif;
  --heading-font: "Playfair Display", Georgia, serif;
  --nav-font: "Lato", system-ui, sans-serif;

  /* Bootstrap theme overrides */
  --bs-primary: var(--nb-dark-green);
  --bs-secondary: var(--nb-light-green);
  --bs-primary-rgb: 20, 61, 80;
  --bs-secondary-rgb: 127, 208, 204;
  --bs-link-color: var(--nb-green);
  --bs-link-hover-color: var(--nb-dark-green);
  --bs-body-font-family: var(--default-font);
  --bs-gray-100: #f8f9fa;
  --bs-gray-800: #343a40;
  --bs-gray-900: #212529;

  /* Semantic defaults — overridden by .dark-background, .light-background, etc. */
  --background-color: #ffffff;
  --default-color: var(--bs-gray-100);
  --heading-color: var(--col-forest);
  --accent-color: var(--bs-gray-900);
  --surface-color: #ffffff;
  --contrast-color: #ffffff;
  --btn-bg-color: var(--bs-gray-900);
  --btn-hover-color: var(--bs-gray-100);

  /* Navigation */
  --nav-txt-color: #ffffff;
  --nav-hover-color: var(--nb-light-green);
  --nav-dropdown-background-color: var(--nb-navy);
  --nav-dropdown-txt-color: #ffffff;
  --nav-dropdown-hover-color: var(--nb-light-green);
}

/* ============================================================
   2. Base Overrides
   ============================================================ */
html, body {
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

body {
  overflow-y: scroll;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  background-color: var(--nb-navy);
}

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

@media screen and (max-width: 768px) {
  [data-aos-delay] { transition-delay: 0 !important; }
}

a { color: var(--nb-green); text-decoration: none; }
a:hover { color: var(--nb-dark-green); }

h1, h2, h3, h4, h5, h6 {
  color: var(--heading-color);
  font-family: var(--heading-font);
}

/* ============================================================
   3. Button Brand Overrides
   ============================================================ */
.btn-primary {
  background-color: var(--nb-dark-green);
  border-color: var(--nb-dark-green);
  color: #fff;
}
.btn-primary:hover {
  background-color: var(--nb-green);
  border-color: var(--nb-green);
  color: #fff;
}

.btn-outline-secondary:hover {
  background-color: var(--nb-green);
  border-color: var(--nb-green);
  color: #fff;
}

.btn-shade {
  color: var(--bs-gray-100) !important;
  background: linear-gradient(to right, var(--col-forest), var(--col-light-forest)) !important;
}
.btn-shade:hover { filter: brightness(1.3) saturate(1.1); }

/* ============================================================
   4. Color Presets
   ============================================================ */
section, .section {
  color: color-mix(in srgb, var(--default-color), transparent 20%);
  background-color: var(--background-color);
  padding: 60px 0;
  scroll-margin-top: 100px;
  overflow: clip;
}
@media (max-width: 1199px) {
  section, .section { scroll-margin-top: 66px; }
}

.light-background {
  --background-color: var(--nb-cream);
  --default-color: var(--bs-gray-900);
  --heading-color: var(--col-forest);
  --accent-color: var(--bs-gray-100);
  --surface-color: var(--nb-cream);
  --contrast-color: var(--col-forest);
  --btn-bg-color: var(--bs-gray-100);
  --btn-hover-color: var(--nb-light-green);
}

.dark-background {
  --background-color: var(--nb-navy);
  --default-color: #ffffff;
  --heading-color: #ffffff;
  --accent-color: #c2c3c5;
  --surface-color: var(--col-forest);
  --contrast-color: var(--nb-light-green);
  --btn-bg-color: var(--bs-gray-900);
  --btn-hover-color: var(--bs-gray-800);
}

.black-background {
  --background-color: black;
  --default-color: #ffffff;
  --heading-color: #ffffff;
  --accent-color: #c2c3c5;
  --surface-color: #343a40;
  --contrast-color: #ffffff;
  --btn-hover-color: #ffffff;
}

.accent-background {
  --background-color: var(--bs-primary);
  --default-color: var(--bs-gray-100);
  --heading-color: var(--nb-light-green);
  --accent-color: var(--nb-light-green);
  --surface-color: var(--bs-primary);
  --contrast-color: var(--bs-gray-100);
  --btn-bg-color: var(--nb-dark-green);
  --btn-bg-hover-color: var(--nb-green);
}

/* ============================================================
   5. Shared Components
   ============================================================ */

/* Section title */
.section-title {
  text-align: center;
  padding: 30px 0;
  margin-bottom: 30px;
}
.section-title h2 {
  font-family: var(--heading-font);
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}
.section-title p { margin-bottom: 0; }
@media (max-width: 575px) {
  .section-title h2 { font-size: 28px; margin-bottom: 15px; }
}

/* Section label — small-caps gold eyebrow */
.section-label {
  display: block;
  font-family: var(--default-font);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--nb-gold);
  margin-bottom: 0.75rem;
}

/* Pull-quote */
.pull-quote {
  font-family: var(--heading-font);
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-style: italic;
  font-weight: 400;
  line-height: 1.35;
  color: #fff;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
  letter-spacing: -0.01em;
}
.pull-quote::before { content: '\201C'; }
.pull-quote::after  { content: '\201D'; }

/* Card */
.card {
  background: color-mix(in srgb, var(--accent-color), transparent 90%);
  color: var(--default-color);
  position: relative;
  height: 100%;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  border: 0;
  justify-content: space-between;
  text-align: center;
  transition: background-color 0.3s ease-in-out, color 0.3s ease-in-out;
}
.card .card-img { overflow: hidden; border-radius: 8px 8px 0 0; }
.card .card-img img { transition: 0.3s ease-in-out; }
.card h3 {
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 5px;
  padding: 10px 30px;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--heading-color), transparent 20%);
}
.card p {
  padding: 0 30px;
  color: color-mix(in srgb, var(--default-color), transparent 20%);
  font-size: 15px;
}
.card .icon {
  padding-top: 10px;
  display: inline-block;
  font-size: 48px;
  line-height: 1;
  color: color-mix(in srgb, var(--heading-color), transparent 20%);
  transition: all 0.3s ease-in-out;
}
.card .btn-wrap { padding: 20px 15px; text-align: center; border-radius: 0 0 8px 8px; }
.card .btn-wrap a { text-decoration: none; }
.card .cta-btn {
  display: block;
  padding: 8px 35px 10px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 500;
  font-family: var(--heading-font);
  cursor: pointer !important;
}
.card .cta-btn,
.card .btn {
  border: 1px solid color-mix(in srgb, var(--col-forest), transparent 0%);
  color: var(--contrast-color);
  background: var(--btn-bg-color);
  transition: filter 0.3s;
}
.card:not(.fixed-box-card):hover { background-color: color-mix(in srgb, var(--accent-color), transparent 80%); }
.card .cta-btn:hover,
.card .btn:hover { background: var(--nb-green); color: var(--bs-gray-100); }
.card:hover .card-img img { transform: scale(1.06); }

/* Go-home section */
.go-home-section {
  position: relative;
  width: 100%;
  height: auto;
  padding: 7rem 0;
  background:
    radial-gradient(ellipse 55% 100% at 50% 100%, rgba(90, 166, 163, 0.16) 0%, transparent 70%),
    var(--nb-navy);
  overflow: hidden;
}
.go-home__icon-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 20px;
  color: var(--nb-light-green);
  font-size: 1.15rem;
}
.go-home__line {
  width: 60px;
  height: 1px;
  background: rgba(127, 208, 204, 0.35);
}
.go-home__eyebrow {
  display: block;
  font-family: var(--default-font);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--nb-green);
  margin-bottom: 1rem;
}
.go-home__headline {
  font-family: var(--heading-font);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 1.25rem;
}
.go-home__headline span { color: var(--nb-light-green); }
.go-home__sub {
  font-family: var(--default-font);
  font-size: 1rem;
  font-weight: 300;
  color: rgba(237, 247, 246, 0.65);
  line-height: 1.7;
  max-width: 480px;
  margin: 0 auto 2rem;
}
.go-home__btns {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.875rem;
  flex-wrap: wrap;
}
.go-home__btn-primary {
  display: inline-block;
  font-family: var(--default-font);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--nb-navy);
  background-color: var(--nb-light-green);
  padding: 13px 32px;
  border-radius: 50px;
  text-decoration: none;
  transition: background-color 0.25s ease;
}
.go-home__btn-primary:hover {
  background-color: #fff;
  color: var(--nb-navy);
}
.go-home__btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--default-font);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--nb-light-green);
  background-color: transparent;
  border: 1.5px solid rgba(127, 208, 204, 0.5);
  padding: 12px 32px;
  border-radius: 50px;
  text-decoration: none;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}
.go-home__btn:hover {
  background-color: rgba(127, 208, 204, 0.08);
  border-color: rgba(127, 208, 204, 0.8);
  color: var(--nb-light-green);
}
.go-home__btn i { transition: transform 0.2s ease; }
.go-home__btn:hover i { transform: translateX(4px); }

/* Why-choosing-us */
.why-choosing-us-item {
  background-color: color-mix(in srgb, black, transparent 80%);
  text-align: center;
  border: 1px solid color-mix(in srgb, var(--default-color), transparent 85%);
  padding: 60px 20px;
  transition: border 0.3s ease-in-out;
  height: 100%;
}
.why-choosing-us-item .icon {
  margin: 0 auto 20px;
  width: 64px;
  height: 64px;
  background: color-mix(in srgb, black, transparent 80%);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.3s;
}
.why-choosing-us-item .icon i { color: var(--contrast-color); font-size: 28px; }
.why-choosing-us-item h3 {
  font-family: var(--heading-font);
  font-weight: 600;
  margin: 10px 0 15px;
  font-size: 1.15rem;
}
.why-choosing-us-item p { line-height: 1.65; font-size: 14px; margin-bottom: 0; }
.why-choosing-us-item:hover { border-color: var(--nb-gold); }
.why-choosing-us-item:hover .icon { background: color-mix(in srgb, var(--nb-gold), transparent 60%); }

/* Icons wrap */
.icons-wrap { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; }

/* Video blocks */
.video-block {
  background: #fff;
  border: 1.5px solid rgba(20, 61, 80, 0.12);
  border-radius: 10px;
  padding: 1.25rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.07);
}
.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 6px;
}
.video-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ============================================================
   6. Header & Navbar
   ============================================================ */
.header {
  background: linear-gradient(135deg, #0e2233 0%, #071923 50%, #0b1e2e 100%);
  border-bottom: 1px solid rgba(127, 208, 204, 0.18);
  box-shadow: none;
  padding: 20px 0;
  transition: box-shadow 0.4s ease, padding 0.4s ease;
  z-index: 997;
}
body.scrolled .header {
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
  padding: 12px 0;
}
.header .logo img {
  height: 40px;
  width: auto;
  margin-right: 8px;
}

/* Desktop nav */
@media (min-width: 1200px) {
  .navmenu { padding: 0; display: flex; }
  .navmenu ul {
    margin: 0;
    padding: 0;
    display: flex;
    list-style: none;
    align-items: center;
    gap: 36px;
  }
  .navmenu li { position: relative; }
  .navmenu a,
  .navmenu a:focus {
    color: var(--bs-gray-100);
    font-size: 13px;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    font-family: var(--nav-font);
    font-weight: 700;
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: color 0.25s ease;
    white-space: nowrap;
  }
  .navmenu a:hover,
  .navmenu .active,
  .navmenu .active:focus { color: var(--nb-gold); }

  .navmenu__btn-primary {
    color: var(--nb-navy) !important;
    background-color: var(--nb-light-green);
    padding: 9px 20px;
    border-radius: 50px;
    gap: 6px;
    transition: background-color 0.25s ease;
  }
  .navmenu__btn-primary:hover { background-color: #fff; }

  .navmenu__btn-secondary {
    color: var(--bs-gray-100) !important;
    background-color: transparent;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    padding: 8px 18px;
    border-radius: 50px;
    gap: 6px;
    transition: background-color 0.25s ease, border-color 0.25s ease;
  }
  .navmenu__btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.55);
    color: #fff !important;
  }

  .navmenu .dropdown > a { gap: 6px; }
  .navmenu a i.toggle-dropdown { font-size: 10px; }
  .navmenu .dropdown ul {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    background-color: rgba(20, 61, 80, 0.97);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    min-width: 210px;
    padding: 6px 0;
    border-radius: 4px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    list-style: none;
    margin: 0;
    z-index: 1000;
  }
  /* Invisible bridge prevents hover gap between trigger and dropdown */
  .navmenu .dropdown ul::before {
    content: '';
    position: absolute;
    top: -12px;
    left: 0;
    right: 0;
    height: 12px;
  }
  .navmenu .dropdown:hover > ul { display: block; }
  .navmenu .dropdown ul li a {
    font-size: 12px;
    padding: 8px 18px;
    display: block;
    color: rgba(255, 255, 255, 0.8) !important;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: 600;
    white-space: nowrap;
  }
  .navmenu .dropdown ul li a:hover { color: var(--nb-gold) !important; }

  /* Nested dropdown — opens downward in-flow, pushing subsequent book items down */
  .navmenu .dropdown .dropdown { position: relative; }
  .navmenu .dropdown .dropdown > a { justify-content: space-between; gap: 14px; }
  .navmenu .dropdown .dropdown > a i.toggle-dropdown {
    transition: transform 0.3s ease;
  }
  .navmenu .dropdown .dropdown:hover > a i.toggle-dropdown {
    transform: rotate(-180deg);
  }
  .navmenu .dropdown .dropdown > ul {
    display: block;
    position: static;
    max-height: 0;
    padding: 0;
    margin: 0;
    box-shadow: none;
    border-radius: 0;
    background-color: rgba(0, 0, 0, 0.15);
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
  }
  .navmenu .dropdown .dropdown > ul::before { content: none; }
  .navmenu .dropdown .dropdown:hover > ul {
    max-height: 400px;
    padding: 6px 0;
  }
}

/* Mobile nav */
@media (max-width: 1199px) {
  .mobile-nav-toggle {
    color: var(--bs-gray-100);
    font-size: 28px;
    line-height: 0;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    transition: color 0.3s;
    z-index: 9999;
    position: relative;
  }
  .navmenu { padding: 0; display: none; }
  .navmenu ul { display: none !important; }
}

/* ============================================================
   7. Navigation Overlay (mobile full-screen)
   ============================================================ */
.nav-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--nb-dark-green);
  z-index: 9998;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.nav-overlay.is-open { opacity: 1; visibility: visible; }

.nav-overlay__close {
  position: absolute;
  top: 24px;
  right: 28px;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.55);
  font-size: 36px;
  cursor: pointer;
  line-height: 1;
  transition: color 0.25s ease;
  padding: 0;
}
.nav-overlay__close:hover { color: var(--nb-gold); }

.nav-overlay__list { list-style: none; padding: 0; margin: 0; text-align: center; }
.nav-overlay__list li { margin: 0.4rem 0; }
.nav-overlay__list a {
  font-family: var(--heading-font);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  letter-spacing: 0.02em;
  display: block;
  padding: 0.3rem 0;
  transition: color 0.25s ease;
}
.nav-overlay__list a:hover { color: var(--nb-gold); }

.nav-overlay__link--sub {
  font-size: clamp(1rem, 2.5vw, 1.5rem) !important;
  color: rgba(255, 255, 255, 0.45) !important;
  padding: 0.1rem 0 !important;
  letter-spacing: 0.05em;
}

.nav-overlay__tagline {
  margin-top: 3rem;
  color: rgba(255, 255, 255, 0.25);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-family: var(--nav-font);
}

/* ============================================================
   8. Hero — Generic sub-page hero
   ============================================================ */
.hero { width: 100%; position: relative; padding-top: 120px; }
.hero .container { position: relative; z-index: 3; }
.hero h1 { font-size: 48px; font-weight: 700; margin-bottom: 20px; }
.hero p {
  color: color-mix(in srgb, var(--default-color), transparent 40%);
  font-weight: 400;
  margin-bottom: 30px;
}
.hero-bg-section { position: relative; width: 100%; }

.hero .btn-get-started,
.btn-get-started {
  color: var(--default-color);
  font-family: var(--heading-font);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 1px;
  padding: 14px 40px;
  border-radius: 50px;
  transition: 0.3s;
  border: 2px solid color-mix(in srgb, var(--default-color), transparent 90%);
  background-color: color-mix(in srgb, var(--default-color), transparent 90%);
}
.hero .btn-get-started:hover,
.btn-get-started:hover {
  border-color: color-mix(in srgb, var(--bs-gray-100), transparent 40%);
  background-color: color-mix(in srgb, var(--bs-gray-100), transparent 90%);
  color: var(--bs-gray-100);
}

.hero .btn-hero-secondary {
  font-size: 16px;
  transition: 0.5s;
  margin-left: 25px;
  font-weight: 600;
  color: color-mix(in srgb, var(--default-color), transparent 50%);
}
.hero .btn-hero-secondary:hover,
.hero .btn-hero-secondary:hover i {
  color: color-mix(in srgb, var(--default-color), transparent 0%);
}
.hero .btn-get-started i,
.hero .btn-hero-secondary i {
  color: color-mix(in srgb, var(--default-color), transparent 50%);
  font-size: 32px;
  transition: 0.3s;
  line-height: 0;
  margin-right: 8px;
}

@media (max-width: 767px) {
  .hero .btn-get-started {
    background-color: color-mix(in srgb, var(--default-color), transparent 70%);
    min-height: 64px;
    font-size: 16px;
    text-transform: uppercase;
  }
  .hero .btn-hero-secondary {
    margin-left: 0;
    border-radius: 50px;
    font-size: 16px;
    padding: 14px 40px;
    font-family: var(--heading-font);
    border: 2px solid color-mix(in srgb, var(--default-color), transparent 90%);
    background-color: color-mix(in srgb, var(--default-color), transparent 90%);
  }
}

/* ============================================================
   9. Hero — Split-panel (homepage)
   ============================================================ */
#home { scroll-margin-top: 0; }
#mission,
#digital-tools,
#books,
#why-choosing-us { scroll-margin-top: 80px; }

.hero-viewport {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.hero-viewport .features-strip { flex: 0 0 auto; }
@media (max-width: 767px) {
  .hero-viewport { min-height: auto; }
}
.hero-full {
  flex: 1 1 auto;
  height: auto;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 90px 0 0;
  background:
    radial-gradient(ellipse 55% 80% at 78% 50%, #143d50 0%, transparent 65%),
    var(--nb-navy);
}
.hero-full__inner {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.hero-full__content {
  flex: 0 0 50%;
  display: flex;
  flex-direction: column;
}
.hero-full__visual {
  flex: 0 0 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-full__eyebrow {
  display: block;
  font-family: var(--default-font);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--nb-green);
  margin-bottom: 1.25rem;
}
.hero-full__headline {
  font-family: var(--heading-font);
  font-size: clamp(2.6rem, 4.8vw, 4.5rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.08;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
.hero-full__sub {
  font-family: var(--default-font);
  font-size: 1rem;
  font-weight: 300;
  color: rgba(237, 247, 246, 0.65);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  max-width: 460px;
}
.hero-full__btns {
  display: flex;
  gap: 0.875rem;
  flex-wrap: wrap;
}
.hero-full__btn-primary {
  display: inline-block;
  font-family: var(--default-font);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--nb-navy);
  background-color: var(--nb-light-green);
  padding: 13px 28px;
  border-radius: 50px;
  text-decoration: none;
  transition: background-color 0.25s ease;
}
.hero-full__btn-primary:hover {
  background-color: #fff;
  color: var(--nb-navy);
}
.hero-full__btn-secondary {
  display: inline-block;
  font-family: var(--default-font);
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 13px 28px;
  border-radius: 50px;
  text-decoration: none;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}
.hero-full__btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.16);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}
.hero-full__book-img {
  max-width: 105%;
  max-height: 80vh;
  object-fit: contain;
  filter: drop-shadow(-12px 16px 32px rgba(0, 0, 0, 0.4));
}

@media (max-width: 767px) {
  .hero-full { height: auto; min-height: auto; padding: 7rem 0 3rem; }
  .hero-full__inner { flex-direction: column; gap: 2.5rem; padding: 0 1.5rem; }
  .hero-full__content, .hero-full__visual { flex: none; width: 100%; }
  .hero-full__visual { justify-content: center; max-height: 280px; }
  .hero-full__book-img { max-width: 60%; }
  .hero-full__headline { font-size: clamp(2.2rem, 8vw, 3rem); }
}

/* ============================================================
   Features Strip
   ============================================================ */
.features-strip {
  background: linear-gradient(135deg, #0e2233 0%, #071923 50%, #0b1e2e 100%);
  padding: 48px 0;
  border-top: 1px solid rgba(127, 208, 204, 0.18);
  border-bottom: 1px solid rgba(127, 208, 204, 0.18);
}
.features-strip .row > [class*="col"] {
  position: relative;
}
.features-strip .row > [class*="col"]:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 10%;
  height: 80%;
  width: 1px;
  background: rgba(127, 208, 204, 0.15);
}
.features-strip__item {
  color: inherit;
  text-decoration: none;
  transition: transform 0.2s ease;
}
.features-strip__item:hover {
  color: inherit;
  transform: translateY(-2px);
}
.features-strip__item:hover .features-strip__icon {
  background: rgba(127, 208, 204, 0.28);
  border-color: rgba(127, 208, 204, 0.5);
}
.features-strip__item:hover .features-strip__title {
  color: #7fd0cc;
}
.features-strip__icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  background: rgba(127, 208, 204, 0.15);
  border: 1px solid rgba(127, 208, 204, 0.3);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #7fd0cc;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.features-strip__title {
  font-weight: 700;
  font-size: 0.92rem;
  color: #edf7f6;
  margin-bottom: 5px;
  line-height: 1.3;
}
.features-strip__desc {
  font-size: 0.8rem;
  color: #b9d1d0;
  line-height: 1.55;
  margin-bottom: 0;
}
@media (max-width: 991px) {
  .features-strip .row > [class*="col"]::after { display: none; }
}

/* ============================================================
   10. Digital Tools — Chapter tab navigation
   ============================================================ */
.tools-chapter {
  display: flex;
  gap: 0;
  align-items: stretch;
  margin-top: 2.5rem;
}
.tools-chapter__nav {
  flex: 0 0 28%;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  padding-right: 2rem;
}
.tools-chapter__nav .nav-link {
  display: block;
  padding: 1.25rem 0 1.25rem 1.5rem;
  border: none;
  border-left: 3px solid transparent;
  background: transparent;
  color: rgba(255, 255, 255, 0.4);
  text-align: left;
  font-family: var(--default-font);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all 0.25s ease;
  border-radius: 0;
  cursor: pointer;
  width: 100%;
  text-decoration: none;
}
.tools-chapter__nav .nav-link:hover {
  color: rgba(255, 255, 255, 0.8);
  border-left-color: rgba(90, 166, 163, 0.4);
}
.tools-chapter__nav .nav-link.active {
  border-left-color: var(--nb-gold);
  color: #fff;
}
.tools-chapter__nav .tab-num {
  font-family: var(--heading-font);
  font-size: 1.75rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.1);
  display: block;
  line-height: 1;
  margin-bottom: 0.3rem;
  transition: color 0.25s ease;
}
.tools-chapter__nav .nav-link.active .tab-num { color: rgba(90, 166, 163, 0.4); }
.tools-chapter__content { flex: 1; padding-left: 3rem; }
.tools-chapter__content .tab-pane h3 {
  font-family: var(--heading-font);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 600;
  color: #fff;
  margin-bottom: 1rem;
  margin-top: 0;
}
.tools-chapter__content .tab-pane p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.7;
}
.tools-chapter__content .tab-pane img { border-radius: 4px; opacity: 0.9; }

@media (max-width: 991px) {
  .tools-chapter { flex-direction: column; }
  .tools-chapter__nav {
    display: flex;
    flex-wrap: wrap;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-right: 0;
    padding-bottom: 0;
    margin-bottom: 2rem;
    gap: 0;
  }
  .tools-chapter__nav .nav-link {
    flex: 1 1 auto;
    padding: 1.1rem 0.5rem;
    border-left: none;
    border-bottom: 3px solid transparent;
    text-align: left;
    font-size: 1.1rem;
    letter-spacing: 0.06em;
  }
  .tools-chapter__nav .nav-link:hover {
    border-left-color: transparent;
    border-bottom-color: rgba(90, 166, 163, 0.4);
  }
  .tools-chapter__nav .nav-link.active {
    border-left-color: transparent;
    border-bottom-color: var(--nb-gold);
  }
  .tools-chapter__nav .tab-num {
    font-size: 1.1rem;
    display: inline;
    margin-right: 0.5rem;
    margin-bottom: 0;
  }
  .tools-chapter__content { padding-left: 0; }
}

/* ============================================================
   11. Books — Featured editorial
   ============================================================ */
.book-featured {
  background:
    radial-gradient(ellipse 55% 100% at 50% 100%, rgba(90, 166, 163, 0.16) 0%, transparent 70%),
    var(--nb-navy);
  border-top: 1px solid rgba(127, 208, 204, 0.18);
  border-bottom: 1px solid rgba(127, 208, 204, 0.18);
}
.book-featured__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.book-featured__cover-wrap {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.book-featured__cover {
  max-width: 85%;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.5));
  transform: rotate(-2deg);
  transition: transform 0.4s ease;
}
.book-featured__cover:hover { transform: rotate(0deg) scale(1.02); }
.book-featured__title {
  font-family: var(--heading-font);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}
.book-featured__title span { color: var(--nb-light-green); }
.book-featured__desc {
  font-family: var(--default-font);
  font-size: 1rem;
  font-weight: 300;
  color: rgba(237, 247, 246, 0.65);
  line-height: 1.7;
  margin-bottom: 1.75rem;
  max-width: 480px;
}
.book-featured__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--default-font);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--nb-light-green);
  margin-bottom: 2rem;
}
.book-featured__meta i { font-size: 0.9rem; }
.book-featured__meta .meta-sep { color: rgba(255, 255, 255, 0.3); }
.book-featured__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--default-font);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--nb-navy);
  background-color: var(--nb-light-green);
  padding: 13px 28px;
  border-radius: 50px;
  text-decoration: none;
  transition: background-color 0.25s ease;
  margin-bottom: 2rem;
}
.book-featured__cta:hover { background-color: #fff; color: var(--nb-navy); }

.book-features { display: flex; flex-wrap: wrap; gap: 10px; }
.book-features__pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid rgba(127, 208, 204, 0.3);
  border-radius: 8px;
  font-family: var(--default-font);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.02);
  white-space: nowrap;
  text-decoration: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.book-features__pill:hover {
  border-color: rgba(127, 208, 204, 0.6);
  background-color: rgba(127, 208, 204, 0.08);
  color: #fff;
}
.book-features__pill i { font-size: 15px; color: var(--nb-light-green); }

@media (max-width: 767px) {
  .book-featured__inner { grid-template-columns: 1fr; gap: 40px; }
  .book-featured__cover-wrap { justify-content: center; }
  .book-featured__cover { max-width: 60%; transform: none; }
  .book-featured__cover:hover { transform: none; }
}

/* ============================================================
   12. Editorial columns — supporting content under Digital Tools
   ============================================================ */
.editorial-grid {
  columns: 2;
  column-gap: 4rem;
  margin-top: 4rem;
  padding-top: 4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.editorial-grid__item { break-inside: avoid; margin-bottom: 2.5rem; }
.editorial-grid__heading {
  font-family: var(--heading-font);
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.5rem;
}
.editorial-grid__text {
  font-family: var(--default-font);
  font-size: 0.9rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
  margin-bottom: 0;
}

@media (max-width: 767px) {
  .stats-strip { flex-wrap: wrap; gap: 24px; }
  .stats-strip__item { flex: 0 0 calc(50% - 12px); }
  .editorial-grid { columns: 1; }
}

/* ============================================================
   13. Footer
   ============================================================ */
.footer-editorial { background-color: var(--nb-navy); padding: 64px 0 0; }
.footer-editorial__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-editorial__logo { max-height: 30px; margin-bottom: 1.25rem; display: block; }
.footer-editorial__tagline {
  font-family: var(--default-font);
  font-size: 0.875rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  max-width: 260px;
}
.footer-editorial__social { display: flex; gap: 16px; }
.footer-editorial__social a {
  color: rgba(255, 255, 255, 0.35);
  font-size: 18px;
  transition: color 0.25s ease;
  text-decoration: none;
}
.footer-editorial__social a:hover { color: var(--nb-gold); }
.footer-editorial__heading {
  font-family: var(--default-font);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--nb-gold);
  margin-bottom: 1.25rem;
  display: block;
}
.footer-editorial__links { list-style: none; padding: 0; margin: 0; }
.footer-editorial__links li { margin-bottom: 0.6rem; }
.footer-editorial__links a {
  font-family: var(--default-font);
  font-size: 0.875rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color 0.25s ease;
}
.footer-editorial__links a:hover { color: rgba(255, 255, 255, 0.9); }
.footer-editorial__contact-label {
  font-family: var(--default-font);
  font-size: 0.875rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.6;
}
.footer-editorial__contact-label a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color 0.25s ease;
}
.footer-editorial__contact-label a:hover { color: rgba(255, 255, 255, 0.9); }
.footer-editorial__bottom {
  border-top: 1px solid rgba(248, 245, 238, 0.12);
  padding: 20px 0;
}
.footer-editorial__copy {
  font-family: var(--default-font);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.25);
  margin: 0;
}

@media (max-width: 767px) {
  .footer-editorial__grid { grid-template-columns: 1fr; gap: 32px; }
}