/* ==========================================================================
   main.css — Global styles, variables, reset, typography, layout chrome
   ========================================================================== */

/* === CSS Custom Properties === */
:root {
  --color-bg:           #141414;
  --color-blue:         #03318C;
  --color-text:         #FFFFFF;
  --color-accent:       #F280AA;
  --color-secondary:    #FFFFFF;
  --color-card-hover:   rgba(242, 128, 170, 0.1);

  --font-heading: "BBH Bartle", sans-serif;
  --font-body:    "Outfit", sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --weight-heading: 700;
  --weight-body:    400;

  --gap:              32px;
  --container-max:    1600px;
  --padding-desktop:  80px;
  --padding-tablet:   48px;
  --padding-mobile:   24px;
  --header-height:    64px;

  --ease:               cubic-bezier(0.4, 0, 0.2, 1);
  --transition-hover:   0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-page:    0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Reset === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

[hidden] { display: none !important; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  background-color: var(--color-bg);
  background-image: url('/assets/images/paper.avif');
  background-repeat: repeat;
  background-blend-mode: multiply;
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: var(--weight-body);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === Blue Mode === */
body.is-blue {
  --color-bg: var(--color-blue);
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
  color: inherit;
}

ul, ol {
  list-style: none;
}

/* === Page Transition Overlay === */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-page);
}

.page-transition.is-active {
  opacity: 1;
  pointer-events: all;
}

/* === Site Header === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 var(--padding-desktop);
  background-color: var(--color-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  transition: background-color var(--transition-hover);
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.site-logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 28px;
  width: auto;
  display: block;
  opacity: 1;
  transition: opacity var(--transition-hover);
  /* SVG renders as currentColor — force white */
  filter: brightness(0) invert(1);
}

.site-logo:hover .logo-img {
  opacity: 0.7;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-hover);
  display: flex;
  align-items: center;
  gap: 6px;
}

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

/* === Site Footer (floating fixed bar) === */
.site-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 48px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-footer.is-visible {
  opacity: 1;
  pointer-events: all;
}

/* Extra body padding so page content isn't hidden behind the footer */
body {
  padding-bottom: 48px;
}

/* === Language Toggle === */
.lang-btn {
  display: flex;
  align-items: center;
  gap: 0;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  color: #B3B1A2;
}

.lang-btn [data-lang] {
  color: #B3B1A2;
  transition: color 0.2s var(--ease);
  padding: 2px 1px;
  cursor: pointer;
}

.lang-btn [data-lang].is-active {
  color: var(--color-accent);
}

.lang-btn [data-lang]:hover:not(.is-active) {
  color: rgba(255, 255, 255, 0.7);
}

.lang-sep {
  color: rgba(179, 177, 162, 0.35);
  margin: 0 2px;
  pointer-events: none;
}

/* === Footer Right (logo + icons) === */
.footer-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-logo img {
  height: 20px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1) brightness(0.70);
  transition: opacity 0.25s var(--ease);
}

.footer-logo:hover img {
  opacity: 1;
}

.footer-icon {
  display: flex;
  align-items: center;
  color: #B3B1A2;
  transition: color 0.25s var(--ease);
}

.footer-icon:hover {
  color: var(--color-text);
}

/* === Color Toggle Button === */
.color-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-blue);
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.color-toggle:hover {
  border-color: rgba(255, 255, 255, 0.55);
  transform: scale(1.2);
}

.color-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

body.is-blue .color-toggle {
  background: #141414;
  border-color: rgba(255, 255, 255, 0.35);
}

/* === Drawer language button === */
.drawer-lang {
  display: flex;
  align-items: center;
  gap: 0;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  color: #B3B1A2;
}

.drawer-lang [data-lang] {
  color: rgba(255, 255, 255, 0.25);
  transition: color 0.2s var(--ease);
  padding: 2px 1px;
  cursor: pointer;
}

.drawer-lang [data-lang].is-active {
  color: var(--color-accent);
}

.drawer-lang [data-lang]:hover:not(.is-active) {
  color: var(--color-text);
}

.drawer-lang .lang-sep {
  color: rgba(255, 255, 255, 0.1);
  margin: 0 2px;
}

/* === Nav Drawer (fullscreen menu overlay) === */
.nav-drawer {
  position: fixed;
  inset: 0;
  z-index: 190;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-height) + 40px) var(--padding-desktop) 48px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s var(--ease);
}

.nav-drawer.is-open {
  opacity: 1;
  pointer-events: all;
}

.drawer-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.drawer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.drawer-links li {
  overflow: hidden;
}

.drawer-link {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 7vw, 6rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.12);
  letter-spacing: -0.02em;
  line-height: 1.15;
  padding: 4px 0;
  text-decoration: none;
  transform: translateY(110%);
  transition:
    transform 0.5s var(--ease),
    color 0.25s var(--ease);
}

.nav-drawer.is-open .drawer-link {
  transform: translateY(0);
}

.nav-drawer.is-open .drawer-links li:nth-child(1) .drawer-link { transition-delay: 0.06s; }
.nav-drawer.is-open .drawer-links li:nth-child(2) .drawer-link { transition-delay: 0.12s; }
.nav-drawer.is-open .drawer-links li:nth-child(3) .drawer-link { transition-delay: 0.18s; }
.nav-drawer.is-open .drawer-links li:nth-child(4) .drawer-link { transition-delay: 0.24s; }

.drawer-link:hover,
.drawer-link:focus-visible {
  color: var(--color-text);
}

.drawer-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.25);
  letter-spacing: 0.05em;
}

.drawer-ig {
  color: rgba(255, 255, 255, 0.25);
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.drawer-ig:hover {
  color: var(--color-accent);
}

@media (max-width: 1024px) {
  .nav-drawer {
    padding: calc(var(--header-height) + 32px) var(--padding-tablet) 40px;
  }
}

@media (max-width: 768px) {
  .nav-drawer {
    padding: calc(var(--header-height) + 20px) var(--padding-mobile) 32px;
  }
}



/* === Cycling CTA Word === */
.cta-cycle-word {
  display: inline-block;
  white-space: nowrap;
  color: var(--color-accent);
  transition: opacity 0.25s var(--ease);
}

.cta-cycle-word.is-changing {
  opacity: 0;
}

/* === Bio Cycling Phrase === */
.bio-cycle-word {
  display: inline-block;
  white-space: nowrap;
  color: var(--color-accent);
  transition: opacity 0.25s var(--ease);
}

.bio-cycle-word.is-changing {
  opacity: 0;
}

/* === Focus Indicators (Accessibility) === */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* === Tablet (≤1024px) === */
@media (max-width: 1024px) {
  .site-header {
    padding: 0 var(--padding-tablet);
  }

  .site-footer {
    padding: 0 16px;
  }
}

/* === Mobile (≤768px) === */
@media (max-width: 768px) {
  .site-header {
    padding: 0 var(--padding-mobile);
  }

  .site-nav {
    gap: 16px;
  }

  .site-footer {
    padding: 0 12px;
  }

  /* Drawer — JS (fitHeadings.js) handles per-link sizing on mobile */
  .nav-drawer {
    padding: calc(var(--header-height) + 24px) var(--padding-mobile) 40px;
  }

  .drawer-link {
    line-height: 1.1;
    padding: 8px 0;
  }
}