:root {
  --bg: #f0f1f2;
  --bg2: #e9ebed;
  --ink: rgba(34, 37, 42, 0.80);
  --muted: rgba(34, 37, 42, 0.52);
  --line: rgba(34, 37, 42, 0.12);
  --line-focus: rgba(34, 37, 42, 0.24);
  --sent: rgba(34, 37, 42, 0.64);
    --transition-slow: 1600ms cubic-bezier(0.22, 1, 0.36, 1);
  --transition-med: 1100ms cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "DM Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", "Helvetica Neue", monospace;
  background:
    radial-gradient(1250px 900px at 22% 12%, rgba(255,255,255,0.30), transparent 60%),
    radial-gradient(980px 780px at 74% 84%, rgba(221,223,226,0.18), transparent 64%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
  color: var(--ink);
  overflow-x: hidden;
  letter-spacing: 0.045em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.ambient,
.grain,
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.ambient {
  opacity: 0.44;
  filter: blur(130px);
  transition: transform 3.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.ambient-a {
  background: radial-gradient(circle at center, rgba(255,255,255,0.18), transparent 58%);
  transform: translate3d(-2%, -1%, 0);
}

.ambient-b {
  background: radial-gradient(circle at center, rgba(210,213,218,0.12), transparent 64%);
  transform: translate3d(1%, 2%, 0);
}

.grain {
  opacity: 0.052;
  background-image:
    linear-gradient(rgba(255,255,255,0.016), rgba(255,255,255,0.016)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cg fill='%23000000' fill-opacity='0.10'%3E%3Ccircle cx='12' cy='18' r='0.55'/%3E%3Ccircle cx='40' cy='60' r='0.55'/%3E%3Ccircle cx='88' cy='34' r='0.65'/%3E%3Ccircle cx='132' cy='80' r='0.5'/%3E%3Ccircle cx='155' cy='20' r='0.55'/%3E%3Ccircle cx='26' cy='136' r='0.55'/%3E%3Ccircle cx='74' cy='128' r='0.5'/%3E%3Ccircle cx='144' cy='144' r='0.65'/%3E%3C/g%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.noise {
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 140 140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.95' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
  animation: flicker 8s steps(8) infinite;
}

.site {
  min-height: 100vh;
  position: relative;
  padding: clamp(28px, 4vw, 52px);
}

.content {
  width: min(380px, calc(100vw - 64px));
  position: absolute;
  left: 50%;
  top: 59.2%;
  transform: translate3d(-50%, -50%, 0);
  transform-origin: center center;
  text-align: center;
  transition: transform 2.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.line,
.footer p,
.note-link,
input,
textarea,
.submit,
.sent-state {
  font-size: clamp(11px, 0.76vw, 12px);
  line-height: 2.14;
  font-weight: 300;
  font-family: inherit;
}

.line {
  margin: 0;
  color: var(--ink);
}

.fade-in {
  opacity: 0;
  transform: translateY(12px);
  animation: settle 1.95s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.delay-1 { animation-delay: 0.4s; }
.delay-2 { animation-delay: 1.2s; }
.delay-3 { animation-delay: 2.0s; }
.delay-4 { animation-delay: 2.8s; }
.delay-5 { animation-delay: 3.6s; }
.delay-6 { animation-delay: 4.4s; }
.delay-7 { animation-delay: 5.2s; }

.gap-after-space { height: 2.55rem; }
.gap-after-first-linger { height: 2.05rem; }
.gap-after-last-linger { height: 3.55rem; }

.ellipsis-line {
  min-height: 2.14em;
  margin-top: -0.28rem;
  color: var(--ink);
}

.ellipsis {
  display: inline-block;
  width: 1.9em;
  text-align: center;
}


.note-wrap {
  position: relative;
  display: inline-block;
  min-width: 220px;
}

.note-link,
.submit {
  appearance: none;
  border: 0;
  background: transparent;
  color: rgba(34, 37, 42, 0.68);
  cursor: pointer;
  font-weight: 300;
  letter-spacing: 0.06em;
  padding: 0;
  transition:
    color 480ms ease,
    opacity 700ms ease,
    transform 1300ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 700ms ease;
}

.note-link:hover,
.note-link:focus-visible,
.submit:hover,
.submit:focus-visible {
  color: var(--ink);
  outline: none;
  filter: blur(0px);
}

.note-link {
  padding: 4px 32px;
  border-radius: 999px;
  border: 0.5px solid var(--line);
  background: transparent;
  transition: background 240ms ease, opacity 180ms ease;
}

.note-panel {
  margin-top: 0.9rem;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transform: translateY(-6px);
  transition:
    max-height var(--transition-slow),
    opacity var(--transition-med),
    transform var(--transition-med);
}

.note-wrap.open .note-panel {
  max-height: 430px;
  opacity: 1;
  transform: translateY(0);
}


.field {
  margin-top: 0.72rem;
}

.field-error {
  min-height: 1.3em;
  margin-top: 0.15rem;
  font-size: clamp(9px, 0.58vw, 9.5px);
  line-height: 1.5;
  color: rgba(120, 62, 62, 0.62);
  letter-spacing: 0.03em;
  opacity: 0;
  transition: opacity 320ms ease;
}

.field.has-error .field-error {
  opacity: 1;
}

input.is-invalid,
textarea.is-invalid {
  border-bottom-color: rgba(120, 62, 62, 0.34);
}

input.is-valid,
textarea.is-valid {
  border-bottom-color: rgba(34, 37, 42, 0.18);
}

input,
textarea {
  width: 100%;
  display: block;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  padding: 0.42rem 0 0.5rem;
  border-radius: 0;
  outline: none;
  text-align: center;
  transition: border-color 420ms ease, opacity 420ms ease;
}

input::placeholder,
textarea::placeholder {
  color: rgba(34, 37, 42, 0.34);
}

input:focus,
textarea:focus {
  border-color: var(--line-focus);
}

textarea { resize: none; }

.actions { margin-top: 1.5rem; }

.submit {
  font-size: clamp(10.5px, 0.74vw, 11.5px);
}


.note-wrap.is-submitting .note-panel {
  opacity: 0;
  transform: translateY(-8px);
  max-height: 0;
}

.note-wrap.is-submitting .note-link {
  opacity: 0;
  transform: translateY(-6px);
}

.sent-state {
  position: absolute;
  left: 50%;
  top: 0.05rem;
  transform: translate3d(-50%, 8px, 0);
  color: var(--sent);
  opacity: 0;
  pointer-events: none;
  transition: opacity 1200ms ease, transform 1500ms cubic-bezier(0.22, 1, 0.36, 1);
}

.note-wrap.sent .sent-state {
  opacity: 1;
  transform: translate3d(-50%, 0, 0);
}

.note-wrap.sent .note-link,
.note-wrap.sent .note-panel {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.footer {
  position: absolute;
  left: 50%;
  bottom: clamp(16px, 1.7vw, 24px);
  transform: translateX(-50%);
  width: min(380px, calc(100vw - 64px));
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.64rem;
  text-align: center;
  transition: transform 2.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.footer-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.18;
  font-size: clamp(8.5px, 0.58vw, 9.2px);
}

.footer-logo {
  width: 30px;
  height: auto;
  opacity: 0.42;
  filter: grayscale(1) saturate(0) brightness(0.82) contrast(0.9);
}

@keyframes settle {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

  25% { content: "."; }
  50% { content: ".."; }
  75% { content: "..."; }
  100% { content: ""; }
}

@keyframes flicker {
  0%, 100% { opacity: 0.03; }
  50% { opacity: 0.041; }
}

@media (max-width: 640px) {
  .content, .footer {
    width: min(320px, calc(100vw - 52px));
  }

  .content {
    top: 60.4%;
  }

  .gap-after-space { height: 2.2rem; }
  .gap-after-first-linger { height: 1.8rem; }
  .gap-after-last-linger { height: 3rem; }
}

@media (prefers-reduced-motion: reduce) {
  .ambient,
  .content,
  .footer,
  .note-link,
  .note-panel,
  .sent-state,
  .fade-in,
  .noise {
    animation: none !important;
    transition: none !important;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }
}