/* Structural foundations shared by every page. */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 8rem;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--color-fg);
  background:
    radial-gradient(circle at 8% 9%, rgba(254, 111, 152, 0.16), transparent 27rem),
    radial-gradient(circle at 93% 30%, rgba(200, 245, 222, 0.55), transparent 32rem),
    linear-gradient(155deg, rgba(255, 255, 255, 0.3), transparent 48%),
    var(--color-bg);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::selection {
  color: var(--color-dark);
  background: var(--color-mint);
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button {
  border: 0;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-underline-offset: 0.18em;
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: var(--space-2);
  left: var(--space-2);
  z-index: 100;
  padding: 0.65rem 1rem;
  color: var(--color-dark);
  background: var(--color-mint);
  border-radius: var(--radius-pill);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 180ms var(--ease-out);
}

.skip-link:focus {
  transform: translateY(0);
}

.wrap {
  width: var(--wrap);
  margin-inline: auto;
}

.narrow {
  width: var(--narrow);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  color: var(--color-on-dark);
  background: rgba(13, 56, 47, 0.97);
  border-bottom: 1px solid rgba(200, 245, 222, 0.18);
  box-shadow: 0 0.7rem 2.5rem rgba(13, 56, 47, 0.12);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 5rem;
}

.logo {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-on-dark);
  font-family: var(--font-display);
  font-size: 1.03rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.logo img {
  width: 2.55rem;
  height: 2.55rem;
  object-fit: contain;
  filter: drop-shadow(0 0.35rem 0.7rem rgba(0, 0, 0, 0.12));
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(0.4rem, 1vw, 0.8rem);
}

.nav a {
  position: relative;
  padding: 0.55rem 0.85rem;
  color: rgba(244, 255, 249, 0.76);
  border-radius: var(--radius-pill);
  font-size: 0.86rem;
  font-weight: 700;
  text-decoration: none;
  transition: color 220ms ease, background-color 260ms ease, transform 260ms var(--ease-out);
}

.nav a:hover,
.nav a.active {
  color: var(--color-dark);
  background: var(--color-mint);
  transform: translateY(-2px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.15rem;
  padding: 0.8rem 1.4rem;
  color: var(--color-fg);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  box-shadow: 0 0 0 rgba(18, 63, 53, 0);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition:
    color 220ms ease,
    background-color 220ms ease,
    border-color 220ms ease,
    box-shadow 360ms var(--ease-out),
    transform 360ms var(--ease-out);
}

.btn:hover {
  box-shadow: var(--shadow-lift);
  transform: translateY(-4px) rotate(-0.5deg);
}

.btn:active {
  box-shadow: 0 0.35rem 0.8rem rgba(18, 63, 53, 0.12);
  transform: translateY(-1px);
}

.btn-small {
  min-height: 2.65rem;
  padding: 0.64rem 1.1rem;
  font-size: 0.81rem;
}

.btn-primary {
  color: var(--color-dark);
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  color: var(--color-dark);
  background: #ff8aaa;
  border-color: #ff8aaa;
}

.btn-secondary {
  color: var(--color-on-dark);
  background: var(--color-fg);
  border-color: var(--color-fg);
}

.btn-secondary:hover {
  color: var(--color-dark);
  background: var(--color-mint);
  border-color: var(--color-mint);
}

.btn-ghost {
  color: var(--color-fg);
  border-color: rgba(18, 63, 53, 0.42);
}

.btn-ghost:hover {
  color: var(--color-fg);
  background: var(--color-surface);
  border-color: var(--color-fg);
}

.site-header .btn-primary {
  color: var(--color-dark);
  box-shadow: none;
}

.site-footer {
  position: relative;
  padding: var(--space-5) 0;
  overflow: hidden;
  color: var(--color-on-dark);
  background:
    radial-gradient(circle at 88% 10%, rgba(200, 245, 222, 0.18), transparent 19rem),
    var(--color-dark);
  font-size: 0.86rem;
}

.site-footer::before {
  position: absolute;
  top: -4rem;
  left: -2rem;
  width: 18rem;
  height: 8rem;
  background: rgba(254, 111, 152, 0.85);
  border-radius: 50%;
  content: "";
  filter: blur(1px);
  transform: rotate(-8deg);
}

.footer-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.footer-inner p {
  margin: 0;
  color: var(--color-on-dark);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-links a {
  color: var(--color-mint);
  font-weight: 700;
  text-decoration-color: transparent;
  transition: color 180ms ease, text-decoration-color 180ms ease;
}

.footer-links a:hover {
  color: #fff;
  text-decoration-color: var(--color-accent);
}

[data-reveal],
[data-animate] {
  opacity: 0;
  transform: translateY(2.25rem);
  transition:
    opacity var(--duration-reveal) ease,
    transform var(--duration-reveal) var(--ease-out);
  transition-delay: calc(var(--reveal-order, 0) * 65ms);
}

[data-reveal].is-visible,
[data-animate].is-in {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  :root {
    --wrap: min(100% - 2rem, 1200px);
    --narrow: min(100% - 2rem, 780px);
  }

  html {
    scroll-padding-top: 9.5rem;
  }

  .header-inner {
    flex-wrap: wrap;
    gap: 0.4rem 0.75rem;
    padding-block: 0.6rem;
  }

  .header-inner > .btn {
    min-height: 2.4rem;
  }

  .nav {
    order: 3;
    width: 100%;
    gap: 0.35rem;
    padding-top: 0.25rem;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .nav::-webkit-scrollbar {
    display: none;
  }

  .nav a {
    flex: 0 0 auto;
    padding: 0.45rem 0.72rem;
    font-size: 0.79rem;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 430px) {
  .logo span {
    max-width: 8rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .header-inner > .btn {
    padding-inline: 0.8rem;
    font-size: 0.74rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  [data-reveal],
  [data-animate] {
    opacity: 1;
    transform: none;
  }
}