@font-face {
  font-family: 'Inter';
  src: url('fonts/Inter-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('fonts/Inter-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

::selection {
  background-color: #ffffff;
  color: #000000;
}

:root {
  --color-bg: #000000;
  --color-text-primary: #e8e8e8;
  --color-text-secondary: #888888;
  --color-text-tertiary: #555555;
  --color-border: #1a1a1a;
  --color-link: #e8e8e8;
  --color-link-hover: #ffffff;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-7: 56px;
  --space-8: 64px;
  --space-9: 72px;
  --space-10: 80px;
  --space-12: 96px;
  --space-16: 128px;

  --radius: 8px;

  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-md: 17px;
  --font-size-lg: 18px;
  --font-size-xl: 22px;
  --font-size-2xl: 26px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 600ms;
  --duration-enter: 900ms;
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.62;
  letter-spacing: 0.01em;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

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

a:focus-visible {
  outline: 2px solid var(--color-text-primary);
  outline-offset: 4px;
  border-radius: 2px;
}

.loader {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--duration-slow) var(--ease-out),
    visibility var(--duration-slow) var(--ease-out);
}

.loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-text-tertiary);
  animation: loader-pulse 1s var(--ease-out) infinite;
}

@keyframes loader-pulse {

  0%,
  100% {
    opacity: 0.2;
    transform: scale(0.8);
  }

  50% {
    opacity: 1;
    transform: scale(1);
  }
}

.page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: 680px;
  margin: 0 auto;
  padding: var(--space-12) var(--space-4);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--duration-enter) var(--ease-out),
    transform var(--duration-enter) var(--ease-out);
}

.page.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-9);
  gap: var(--space-4);
}

.header-identity {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.header-name {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
  line-height: 1.15;
}

.header-role {
  font-size: var(--font-size-md);
  font-weight: 400;
  color: var(--color-text-secondary);
  letter-spacing: 0.005em;
}

.header-clock {
  font-size: var(--font-size-sm);
  font-weight: 400;
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
  min-width: 120px;
  text-align: right;
  line-height: calc(var(--font-size-2xl) * 1.15);
}

.content {
  flex: 1;
}

.content p {
  font-size: var(--font-size-md);
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  letter-spacing: 0.015em;
}

.content p:last-child {
  margin-bottom: 0;
}

.content a {
  color: var(--color-link);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-text-tertiary);
  transition: text-decoration-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.content a:hover {
  color: var(--color-link-hover);
  text-decoration-color: var(--color-link-hover);
}

.fade-item {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 1100ms var(--ease-out),
    transform 1100ms var(--ease-out);
}

.fade-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.page-404 {
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
}

.title-404 {
  font-size: 64px;
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  line-height: 1;
}

.text-404 {
  color: var(--color-text-secondary);
  font-size: var(--font-size-md);
  margin-bottom: var(--space-3);
}

.link-404 {
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--color-text-tertiary);
  transition: text-decoration-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}
.link-404.fade-item {
  transition: text-decoration-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    opacity 1100ms var(--ease-out),
    transform 1100ms var(--ease-out);
}

.link-404:hover {
  color: var(--color-link-hover);
  text-decoration-color: var(--color-link-hover);
}

@media (max-width: 600px) {
  .page {
    padding: var(--space-7) var(--space-3);
  }

  .header {
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
  }

  .header-clock {
    text-align: left;
    min-width: unset;
    padding-top: 0;
  }

  .header-name {
    font-size: var(--font-size-xl);
  }

  .header-role {
    font-size: var(--font-size-base);
  }

  .content p {
    font-size: var(--font-size-base);
    line-height: 1.75;
    margin-bottom: var(--space-3);
  }
}

@media (max-width: 380px) {
  .page {
    padding: var(--space-6) var(--space-2);
  }

  .header-name {
    font-size: var(--font-size-lg);
  }

  .content p {
    font-size: 15px;
  }
}

/* ─── Pay Page ─── */

.pay-list {
  display: flex;
  flex-direction: column;
  margin-top: var(--space-2);
}

.pay-item {
  border-top: 1px solid var(--color-border);
  transition: border-color var(--duration-fast) var(--ease-out);
}
.pay-item.fade-item {
  transition: border-color var(--duration-fast) var(--ease-out),
    opacity 1100ms var(--ease-out),
    transform 1100ms var(--ease-out);
}
.pay-item:last-child {
  border-bottom: 1px solid var(--color-border);
}

/* ── Accordion toggle ── */
.pay-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  background: none;
  border: none;
  padding: 20px 0;
  cursor: pointer;
  font-family: inherit;
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
}
.pay-toggle:hover {
  color: var(--color-text-primary);
}
.pay-item.is-open > .pay-toggle {
  color: var(--color-text-primary);
}
.pay-toggle:focus-visible {
  outline: 2px solid var(--color-text-primary);
  outline-offset: 4px;
  border-radius: 2px;
}

.pay-asset {
  font-size: var(--font-size-md);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1;
}

.pay-chevron {
  width: 15px;
  height: 15px;
  color: var(--color-text-tertiary);
  flex-shrink: 0;
  transition: transform var(--duration-normal) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}
.pay-toggle:hover .pay-chevron {
  color: var(--color-text-secondary);
}
.pay-item.is-open .pay-chevron {
  transform: rotate(180deg);
  color: var(--color-text-secondary);
}

/* ── Collapsible panel ── */
.pay-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-normal) var(--ease-out);
}
.pay-item.is-open .pay-panel {
  grid-template-rows: 1fr;
}
.pay-panel-inner {
  overflow: hidden;
}

/* ── Network list ── */
.pay-networks {
  list-style: none;
  padding: 4px 0 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pay-network {
  display: flex;
}

.pay-copy {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  background: none;
  border: none;
  border-radius: 6px;
  padding: 10px 10px 10px 4px;
  cursor: pointer;
  font-family: inherit;
  color: var(--color-text-secondary);
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}
.pay-copy:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-primary);
}
.pay-copy:active {
  background: rgba(255, 255, 255, 0.07);
}
.pay-copy:focus-visible {
  outline: 2px solid var(--color-text-primary);
  outline-offset: -2px;
}

.pay-network-name {
  font-size: var(--font-size-sm);
  font-weight: 400;
  color: inherit;
  text-align: left;
  letter-spacing: 0.005em;
}

.pay-copy-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  white-space: nowrap;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}
.pay-copy:hover .pay-copy-hint {
  opacity: 1;
}
.pay-copy.is-copied .pay-copy-hint {
  opacity: 1;
  color: var(--color-text-secondary);
}

/* ── Back link ── */
.pay-back {
  font-size: var(--font-size-sm);
  font-weight: 400;
  color: var(--color-text-tertiary);
  text-decoration: none;
  line-height: calc(var(--font-size-2xl) * 1.15);
  letter-spacing: 0.01em;
  transition: color var(--duration-fast) var(--ease-out);
}
.pay-back:hover {
  color: var(--color-text-secondary);
}