:root {
  --ink: #080a08;
  --ink-soft: #111510;
  --paper: #f8f8f2;
  --muted: #a8aea5;
  --line: rgba(255, 255, 255, 0.18);
  --electric: #c7ef00;
  --electric-dark: #9dbb00;
  --display: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  --body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --content-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--ink);
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}

body,
button {
  font: 400 1rem/1.5 var(--body);
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  border: 0;
}

a {
  color: inherit;
}

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

.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 36px), var(--content-width));
  margin: 0 auto;
  padding: max(18px, env(safe-area-inset-top)) 0 12px;
}

.brand {
  width: 142px;
}

.site-header p {
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.donation-hero {
  position: relative;
  display: grid;
  align-content: center;
  gap: 30px;
  min-height: 100svh;
  padding: 98px 18px max(72px, calc(56px + env(safe-area-inset-bottom)));
  overflow: hidden;
  isolation: isolate;
  background-color: #030503;
  background-image:
    linear-gradient(180deg, rgba(2, 4, 2, 0.28), rgba(2, 4, 2, 0.75)),
    url("assets/eride-bg-portrait.v1.webp");
  background-position: center;
  background-size: cover;
}

.donation-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(circle at 50% 38%, transparent 0 20%, rgba(0, 0, 0, 0.35) 72%);
}

.hero-copy,
.copy-panel {
  width: min(100%, 560px);
  margin-inline: auto;
}

.eyebrow,
.section-number,
.step-label {
  margin: 0;
  color: var(--electric);
  font-size: 0.67rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow::before,
.section-number::before {
  content: "";
  display: inline-block;
  width: 34px;
  height: 2px;
  margin: 0 10px 3px 0;
  background: currentColor;
}

h1,
h2 {
  font-family: var(--display);
  font-style: italic;
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 0.84;
  text-transform: uppercase;
}

h1 {
  margin: 16px 0 0;
  font-size: clamp(3.7rem, 18vw, 7.5rem);
  filter: drop-shadow(5px 7px 0 rgba(0, 0, 0, 0.72));
  transform: skewX(-3deg);
}

h1 em {
  color: var(--electric);
  font-style: inherit;
}

.intro {
  max-width: 390px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.95rem;
  line-height: 1.55;
}

.copy-panel {
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(7, 10, 7, 0.91);
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.38);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.panel-heading {
  padding: 17px 16px 14px;
  border-bottom: 1px solid var(--line);
}

.panel-heading h2 {
  margin: 8px 0 0;
  font-family: var(--body);
  font-size: 1.05rem;
  font-style: normal;
  letter-spacing: -0.01em;
  line-height: 1.2;
  text-transform: none;
}

.copy-row {
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
}

.copy-value span {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.copy-value strong {
  display: block;
  overflow-wrap: anywhere;
  color: #fff;
  font-size: clamp(1.35rem, 6.7vw, 2rem);
  letter-spacing: -0.035em;
  line-height: 1.15;
  user-select: text;
  -webkit-user-select: text;
}

.copy-row--title .copy-value strong {
  font-size: clamp(1.05rem, 4.7vw, 1.38rem);
  letter-spacing: -0.015em;
}

.copy-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 48px;
  margin-top: 13px;
  padding: 11px 15px;
  background: var(--electric);
  color: #10130a;
  cursor: pointer;
  font-size: 0.83rem;
  font-weight: 900;
  transition: background-color 160ms ease, transform 160ms ease;
}

.button-mark {
  font-size: 1.15rem;
  transition: transform 160ms ease;
}

.copy-button:hover,
.copy-button:active {
  background: #ddff37;
}

.copy-button:hover .button-mark {
  transform: translate(2px, -2px);
}

.copy-button:active {
  transform: scale(0.985);
}

.copy-button.is-copied {
  background: #fff;
}

.copy-all-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 52px;
  padding: 13px 16px;
  background: transparent;
  color: #fff;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 900;
  text-align: left;
  transition: background-color 160ms ease;
}

.copy-all-button span:last-child {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 600;
}

.copy-all-button:hover,
.copy-all-button:active,
.copy-all-button.is-copied {
  background: rgba(199, 239, 0, 0.12);
}

.scroll-cue {
  position: absolute;
  right: 18px;
  bottom: max(18px, env(safe-area-inset-bottom));
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
}

.scroll-cue span:last-child {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: 50%;
  color: var(--electric);
  animation: cue 1.8s ease-in-out infinite;
}

.instructions,
.together {
  width: min(calc(100% - 36px), var(--content-width));
  margin-inline: auto;
  padding: 76px 0;
}

.instructions-heading h2,
.together h2 {
  margin: 18px 0 0;
  font-size: clamp(3rem, 14vw, 6.5rem);
}

.instructions-heading > p:last-child {
  margin: 20px 0 0;
  color: var(--muted);
}

.steps {
  margin: 44px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.steps li > span {
  color: var(--electric);
  font-size: 0.68rem;
  font-weight: 900;
}

.steps p {
  margin: 0;
  color: #d8dbd5;
  font-size: 0.96rem;
}

.steps strong {
  color: #fff;
}

.back-to-data {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 52px;
  margin-top: 26px;
  padding: 13px 16px;
  border: 1px solid var(--electric);
  color: var(--electric);
  font-size: 0.82rem;
  font-weight: 900;
  text-decoration: none;
}

.together {
  border-top: 1px solid var(--line);
}

.together img {
  margin-top: 36px;
  border-radius: 16px;
}

footer {
  display: grid;
  place-items: center;
  gap: 14px;
  padding: 45px 18px max(40px, env(safe-area-inset-bottom));
  background: #030403;
  color: #747a72;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

footer img {
  width: 130px;
}

footer p {
  margin: 0;
}

.copy-status {
  position: fixed;
  z-index: 10;
  left: 50%;
  bottom: max(18px, calc(10px + env(safe-area-inset-bottom)));
  width: max-content;
  max-width: calc(100% - 36px);
  padding: 13px 18px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: #f8f8f2;
  box-shadow: 0 14px 50px rgba(0, 0, 0, 0.42);
  color: #11130e;
  font-size: 0.82rem;
  font-weight: 800;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 18px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.copy-status.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.copy-status.is-error {
  width: min(430px, calc(100% - 36px));
  background: #fff2ef;
  color: #6f2118;
}

:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 4px;
}

.reveal {
  animation: rise 680ms cubic-bezier(0.2, 0.72, 0.2, 1) both;
}

.reveal-delay {
  animation-delay: 130ms;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes cue {
  50% { transform: translateY(4px); }
}

/* Windows renders condensed display faces more tightly than macOS.
   Keep the original art direction and relax spacing only on that platform. */
.is-windows .copy-value strong {
  letter-spacing: 0.005em;
  line-height: 1.24;
}

.is-windows .copy-row--title .copy-value strong {
  letter-spacing: 0.005em;
}

@media (min-width: 900px) {
  .is-windows h1 {
    letter-spacing: 0.025em;
    line-height: 0.9;
  }

  .is-windows .instructions-heading h2,
  .is-windows .together h2 {
    letter-spacing: 0;
    line-height: 0.9;
  }

  .is-windows .panel-heading h2,
  .is-windows .copy-button {
    letter-spacing: 0.01em;
  }

  .is-windows .copy-row {
    padding-block: 25px;
  }

  .is-windows .copy-value strong {
    font-size: 1.8rem;
    white-space: nowrap;
  }

  .is-windows .copy-row--title .copy-value strong {
    font-size: clamp(1rem, 1.55vw, 1.2rem);
  }

  .site-header {
    width: min(calc(100% - 64px), var(--content-width));
    padding-top: 24px;
  }

  .brand {
    width: 190px;
  }

  .donation-hero {
    grid-template-columns: minmax(0, 0.9fr) minmax(420px, 0.7fr);
    align-items: center;
    gap: clamp(44px, 7vw, 110px);
    padding: 110px max(32px, calc((100vw - var(--content-width)) / 2)) 70px;
    background-image:
      linear-gradient(90deg, rgba(2, 4, 2, 0.25), rgba(2, 4, 2, 0.58)),
      url("assets/eride-bg-landscape.v1.webp");
  }

  .hero-copy,
  .copy-panel {
    width: 100%;
  }

  h1 {
    font-size: clamp(5.5rem, 10vw, 9rem);
  }

  .intro {
    font-size: 1.05rem;
  }

  .copy-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 20px;
    align-items: center;
    padding: 22px;
  }

  .panel-heading,
  .copy-all-button {
    padding-inline: 22px;
  }

  .copy-button {
    width: 148px;
    margin: 0;
  }

  .scroll-cue {
    right: max(32px, calc((100vw - var(--content-width)) / 2));
    bottom: 26px;
  }

  .instructions {
    display: grid;
    grid-template-columns: minmax(260px, 0.75fr) minmax(420px, 1.25fr);
    gap: clamp(60px, 10vw, 150px);
    padding: 130px 0;
  }

  .instructions-heading h2 {
    font-size: clamp(4rem, 7vw, 6.5rem);
  }

  .steps {
    margin-top: 0;
  }

  .steps li {
    grid-template-columns: 44px minmax(0, 1fr);
    padding: 23px 0;
  }

  .steps p {
    font-size: 1.05rem;
  }

  .back-to-data {
    width: 210px;
    float: right;
  }

  .together {
    display: grid;
    grid-template-columns: 0.72fr 1.28fr;
    gap: clamp(60px, 10vw, 150px);
    align-items: center;
    padding: 110px 0;
  }

  .together h2 {
    font-size: clamp(4rem, 7vw, 6.5rem);
  }

  .together img {
    margin: 0;
  }
}

@media (min-width: 900px) and (max-width: 1199px) {
  .is-windows .copy-value strong {
    font-size: 1.5rem;
  }

  .is-windows .copy-row--title .copy-value strong {
    font-size: 1rem;
  }
}

@media (max-width: 359px), (max-height: 699px) and (max-width: 699px) {
  .donation-hero {
    gap: 18px;
    min-height: auto;
    padding-top: 86px;
  }

  h1 {
    font-size: 3.25rem;
  }

  .intro {
    margin-top: 12px;
    font-size: 0.86rem;
  }

  .panel-heading {
    display: none;
  }

  .copy-row {
    padding-block: 14px;
  }

  .copy-button {
    margin-top: 10px;
  }
}

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

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