/* Design Tokens */
:root {
  /* Primary */
  --color-lavender-dark: #5441AB;
  --color-lavender: #907EDF;
  --color-lavender-bright: #C9BDFF;

  /* Accent (rainbow) */
  --color-yellow: #FDE076;
  --color-orange: #FDAC88;
  --color-pink: #FF99AE;
  --color-green: #9BD0B0;
  --color-blue: #8ED9DF;
  --color-purple: #D9AAE1;

  /* Neutrals */
  --color-white: #FFFCFA;
  --color-light-1: #FFFAF5;
  --color-light-2: #F8F2EB;
  --color-gray-1: #ECE7E3;
  --color-gray-2: #CAC2C2;
  --color-gray-3: #9B8C9B;
  --color-gray-4: #726A78;
  --color-gray-5: #4A4755;
  --color-black: #100E0E;

  /* Special */
  --color-overlay: rgba(40, 36, 58, 0.63);
  --color-warning: #FE093B;

  /* Logo sizing — desktop */
  --font-size-logo-queer: 42px;
  --font-size-logo-postbox: 32px;
  --font-size-logo-subtitle: 16px;
  --size-logo-lines-w: 120px;
  --size-logo-lines-h: 68px;
  --offset-logo-lines-left: 130px;

  /* Layout sizing — desktop */
  --width-sidebar: 200px;
  /* sticky-top-sidebar must stay above the header height (header h ≈ 126px on tablet, 140px desktop) */
  --sticky-top-sidebar: 140px;

  /* Button & icon sizing — desktop */
  --size-icon-action: 72px;
  --size-icon-send-w: 52px;
  --size-icon-send-h: 36px;
  --font-size-send-label: 16px;

  /* Fonts */
  --font-display: 'Albert Sans', sans-serif;
  --font-body: 'Atkinson Hyperlegible Next', 'Atkinson Hyperlegible', sans-serif;

  /* Z-index stacking layers */
  --z-postcard-hover: 2;
  --z-mobile-sidebar: 10;
  --z-send-btn: 100;
  --z-filter-dropdown: 200;
  --z-modal-overlay: 2000;
  --z-header: 2100;
  --z-fullscreen: 3000;

  /* Breakpoints (reference only — CSS vars can't be used in @media queries)
     mobile: 768px  |  tablet: 1024px */
}

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 20px;
  letter-spacing: 1.28px;
  color: var(--color-gray-5);
  background-color: var(--color-white);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--color-white);
  padding: 32px 25px 16px; /* 16px bottom gives breathing room below the logo */
}

/* Drop header behind modal overlay when modal is open */
.modal-open .site-header {
  z-index: 1;
}

.logo {
  position: relative;
  display: inline-block;
  text-decoration: none;
}

.logo-queer {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--font-size-logo-queer);
  line-height: 1;
  letter-spacing: -1.68px;
  color: var(--color-lavender);
  display: block;
}

.logo-postbox {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--font-size-logo-postbox);
  line-height: 1;
  letter-spacing: -0.96px;
  color: var(--color-gray-5);
  display: block;
  margin-top: -6px;
}

.logo-subtitle {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--font-size-logo-subtitle);
  line-height: 20px;
  letter-spacing: 1.5px;
  color: var(--color-gray-4);
  display: block;
  margin-top: 4px;
  text-decoration: none;
}

.logo-lines {
  position: absolute;
  top: 0;
  left: var(--offset-logo-lines-left);
  width: var(--size-logo-lines-w);
  height: var(--size-logo-lines-h);
}

/* Page content
   NOTE: Do not add isolation, z-index, or transforms here —
   modals must be able to layer above the sticky header */
.page-content {
  width: 100%;
}

/* Footer */
.site-footer {
  padding: 40px 25px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  border-top: 1px solid var(--color-gray-1);
  margin-top: 24px;
}

.footer-nav {
  display: flex;
  gap: 24px;
  align-items: center;
}

.footer-link {
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.5px;
  color: var(--color-gray-3);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--color-lavender);
}

.footer-social {
  display: flex;
  gap: 24px;
  align-items: center;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--color-gray-4);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.social-link:hover {
  color: var(--color-lavender);
  background-color: var(--color-light-2);
}

.social-icon {
  width: 24px;
  height: 24px;
}

/* Responsive */

/* Tablet */
@media (max-width: 1024px) {
  :root {
    --font-size-logo-queer: 34px;
    --font-size-logo-postbox: 26px;
    --font-size-logo-subtitle: 14px;
    --size-logo-lines-w: 96px;
    --size-logo-lines-h: 55px;
    --offset-logo-lines-left: 104px;
    --width-sidebar: 180px;
    --sticky-top-sidebar: 130px;
    --size-icon-action: 56px;
    --size-icon-send-w: 44px;
    --size-icon-send-h: 30px;
    --font-size-send-label: 14px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --font-size-logo-queer: 34px;
    --font-size-logo-postbox: 26px;
    --font-size-logo-subtitle: 14px;
    --size-logo-lines-w: 96px;
    --size-logo-lines-h: 55px;
    --offset-logo-lines-left: 104px;
    --width-sidebar: 148px;
    --sticky-top-sidebar: 110px;
    --size-icon-action: 46px;
    --size-icon-send-w: 36px;
    --size-icon-send-h: 25px;
    --font-size-send-label: 13px;
  }

  .site-header {
    padding: 16px;
  }

  .site-footer {
    padding: 32px 16px;
  }
}

/* Share toast notification */
#share-toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: linear-gradient(
    135deg,
    rgba(144, 126, 223, 0.55),
    rgba(217, 170, 225, 0.55),
    rgba(253, 224, 118, 0.55)
  );
  color: var(--color-white);
  padding: 4px 16px;
  border-radius: 20px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 9999;
}

#share-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}