:root {
  --nav-height: 72px;
  --surface-color: #ffffff;
  --surface-muted: #f5f7fb;
  --content-max-width: min(1100px, calc(100% - 2.5rem));
  --text-primary: #1a1c1f;
  --text-secondary: #4a4f56;
  --brand-primary: #0070f3;
  --brand-accent: #0055b5;
  --border-subtle: #e5e8ef;
  --transition-base: 200ms ease;
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Source Sans Pro", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: var(--text-primary);
  background: linear-gradient(180deg, var(--surface-muted) 0%, #ffffff 220px);
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(0, 112, 243, 0.35);
  outline-offset: 2px;
}

img,
svg,
video {
  max-width: 100%;
  height: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Layout */

main.page-wrapper {
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 4vw, 3.75rem);
  padding: calc(var(--nav-height) + 18px) 0 72px;
}

main.page-wrapper > *:not(.full-bleed) {
  width: var(--content-max-width);
  margin-left: auto;
  margin-right: auto;
}

main.page-wrapper > .full-bleed {
  width: 100vw;
  margin-left: calc(50% - 50vw);
}

.content-stack > * + * {
  margin-top: clamp(1.5rem, 3vw, 2.5rem);
}

footer {
  background: var(--surface-color);
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
}

footer .nav-link {
  color: var(--text-secondary);
}

footer .nav-link:hover {
  color: var(--brand-primary);
}

/* Navigation */

.custom-nav {
  position: sticky;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(229, 232, 239, 0.75);
  z-index: 1000;
}

.nav-container {
  width: var(--content-max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: var(--nav-height);
  padding: 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.logo img {
  display: block;
  width: 40px;
  height: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-size: 1.05rem;
}

.nav-links a {
  position: relative;
  color: var(--text-secondary);
  font-weight: 600;
  letter-spacing: 0.01em;
  padding-bottom: 4px;
  transition: color var(--transition-base);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: transparent;
  transition: background var(--transition-base),
    transform var(--transition-base);
  transform: scaleX(0);
  transform-origin: right;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--brand-primary);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  background: var(--brand-primary);
  transform: scaleX(1);
  transform-origin: left;
}

.nav-links a.active {
  color: var(--brand-primary);
}

.nav-links a.active::after {
  background: var(--brand-primary);
  transform: scaleX(1);
  transform-origin: left;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  padding: 0.4rem;
  border-radius: 10px;
  cursor: pointer;
  transition: background var(--transition-base);
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  background: rgba(0, 112, 243, 0.08);
}

.nav-toggle-bar {
  display: block;
  width: 26px;
  height: 3px;
  margin: 5px 0;
  border-radius: 2px;
  background: var(--text-primary);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Hero Carousel */

.hero-carousel .carousel-indicators [data-bs-target] {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.hero-carousel .carousel-item img {
  width: 100%;
  height: clamp(220px, 40vw, 380px);
  object-fit: cover;
  object-position: center 20%;
}

.hero-carousel .carousel-caption {
  background: rgba(17, 24, 39, 0.45);
  backdrop-filter: blur(6px);
  border-radius: 14px;
  padding: clamp(1.1rem, 3vw, 1.75rem);
}

.hero-carousel .carousel-caption h1 {
  font-size: clamp(1.8rem, 4vw, 2.65rem);
  font-weight: 700;
}

.hero-carousel .carousel-caption p {
  font-size: clamp(1rem, 2.3vw, 1.25rem);
  line-height: 1.6;
}

/* Cards & content blocks */

.album {
  background: var(--surface-color);
  border-radius: 18px;
  box-shadow: 0 12px 28px rgba(18, 38, 63, 0.08);
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

.album .card {
  border: 0;
  border-radius: 16px;
  overflow: hidden;
  transition: transform var(--transition-base),
    box-shadow var(--transition-base);
}

.album .card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
}

.album .card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center top;
}

.album .card-body {
  padding: 1.25rem 1.4rem 1.6rem;
}

.album h3 {
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.album p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* Featurettes & imagery */

.featurette img {
  border-radius: 18px;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.15);
  width: 100%;
}

.featurette-heading {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.lead {
  color: var(--text-secondary);
}

/* Forms */

form {
  display: grid;
  gap: 1.25rem;
}

label {
  font-weight: 600;
  color: var(--text-secondary);
}

.btn {
  border-radius: 999px;
  transition: transform var(--transition-base),
    box-shadow var(--transition-base);
}

.btn-primary,
.btn.btn-primary {
  background: var(--brand-primary);
  border-color: var(--brand-primary);
  color: #ffffff;
}

.btn-primary:hover,
.btn.btn-primary:hover {
  background: var(--brand-accent);
  border-color: var(--brand-accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 18px rgba(0, 112, 243, 0.25);
}

input,
textarea,
select {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
  font-size: 1rem;
  transition: border-color var(--transition-base),
    box-shadow var(--transition-base);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(0, 112, 243, 0.15);
  outline: none;
}

/* Tables */

table {
  width: 100%;
  border-collapse: collapse;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.08);
}

th,
td {
  padding: 0.9rem 1rem;
  text-align: left;
}

thead {
  background: var(--brand-primary);
  color: #ffffff;
}

tbody tr:nth-of-type(even) {
  background: rgba(0, 0, 0, 0.02);
}

tbody tr + tr {
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

/* Utilities */

.text-muted {
  color: #868c96 !important;
}

.bg-light {
  background: var(--surface-muted) !important;
}

/* Responsive adjustments */

@media (max-width: 1100px) {
  :root {
    --nav-height: 68px;
  }

  .nav-links {
    gap: 1.1rem;
  }
}

@media (max-width: 900px) {
  main.page-wrapper {
    padding-top: calc(var(--nav-height) + 10px);
  }

  .nav-container {
    position: relative;
    width: 100%;
    padding: 0 clamp(1rem, 4vw, 1.5rem);
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--border-subtle);
    padding: 1.35rem clamp(1.25rem, 6vw, 2rem) 1.85rem;
    flex-direction: column;
    gap: 1rem;
    box-shadow: 0 22px 36px rgba(17, 24, 39, 0.18);
  }

  .nav-links[data-state="open"] {
    display: flex;
  }

  .nav-links a {
    width: 100%;
    text-align: left;
    font-size: 1.05rem;
    padding: 0.35rem 0;
  }
}

@media (max-width: 640px) {
  :root {
    --nav-height: 62px;
  }

  main.page-wrapper {
    gap: 2rem;
    padding-bottom: 56px;
  }

  section,
  article {
    border-radius: 14px;
    padding: 1.5rem;
  }

  .hero-carousel .carousel-caption {
    margin: 0 auto;
    max-width: calc(100% - 1.5rem);
    padding: 1rem;
  }

  .hero-carousel .carousel-caption h1 {
    font-size: clamp(1.4rem, 6vw, 1.75rem);
    line-height: 1.25;
  }

  .hero-carousel .carousel-caption p {
    font-size: clamp(0.95rem, 3.8vw, 1.05rem);
    line-height: 1.5;
    margin-top: 0.65rem;
  }

  .album {
    border-radius: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}