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

:root {
  --paper: #F7F7F5;
  --ink: #14181C;
  --ink-2: #4A535C;
  --ink-3: #7A828A;
  --blueprint: #1B4CD6;
  --surface: #FFFFFF;
  --border: color-mix(in srgb, var(--ink) 12%, transparent);
  --error: #B3362B;
  --font-display: 'IBM Plex Sans Condensed', 'IBM Plex Sans', system-ui, sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --maxw: 920px;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(1200px 500px at 12% -10%, color-mix(in srgb, var(--blueprint) 10%, transparent), transparent 60%),
    linear-gradient(180deg, #EEF1F6 0%, var(--paper) 42%, #F3F1EC 100%);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.pis-wrap {
  width: min(100% - 2.5rem, var(--maxw));
  margin-inline: auto;
}

.pis-header {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(8px);
}

.pis-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
  text-decoration: none;
}

.pis-brand__logo { display: block; }
.pis-brand__wordmark { display: flex; flex-direction: column; line-height: 1.15; }
.pis-brand__primary {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}
.pis-brand__secondary {
  font-size: 0.72rem;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pis-main {
  flex: 1;
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 3.5rem;
}

.pis-layout {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
}

@media (min-width: 860px) {
  .pis-layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3.5rem;
  }
}

.pis-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blueprint);
  margin-bottom: 0.85rem;
}

.pis-intro h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.4rem + 2.4vw, 3rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 14ch;
  margin-bottom: 1rem;
}

.pis-lede {
  color: var(--ink-2);
  font-size: 1.05rem;
  max-width: 36ch;
}

.pis-form-panel,
.pis-success {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: clamp(1.35rem, 3vw, 1.85rem);
  box-shadow: 0 18px 40px color-mix(in srgb, var(--ink) 6%, transparent);
}

.pis-form-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 1.25rem;
}

.pis-hp {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.pis-field {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.pis-field label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink);
}

.pis-field input {
  width: 100%;
  border: 1px solid var(--border);
  background: #FBFBFA;
  color: var(--ink);
  border-radius: 2px;
  padding: 0.8rem 0.9rem;
  font: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.pis-field input:focus {
  outline: none;
  border-color: var(--blueprint);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--blueprint) 16%, transparent);
  background: #fff;
}

.pis-field-error {
  display: none;
  color: var(--error);
  font-size: 0.8125rem;
}

.pis-field.has-error input {
  border-color: var(--error);
}

.pis-field.has-error .pis-field-error {
  display: block;
}

.pis-submit {
  width: 100%;
  margin-top: 0.35rem;
  border: 0;
  border-radius: 2px;
  background: var(--ink);
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  padding: 0.95rem 1.1rem;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}

.pis-submit:hover:not(:disabled) {
  background: var(--blueprint);
}

.pis-submit:disabled {
  opacity: 0.7;
  cursor: wait;
}

.pis-submit .spinner {
  display: inline-block;
  width: 0.9em;
  height: 0.9em;
  margin-right: 0.45rem;
  border: 2px solid color-mix(in srgb, #fff 35%, transparent);
  border-top-color: #fff;
  border-radius: 50%;
  vertical-align: -0.12em;
  animation: pis-spin 0.7s linear infinite;
}

@keyframes pis-spin {
  to { transform: rotate(360deg); }
}

.pis-fineprint {
  margin-top: 0.85rem;
  font-size: 0.8125rem;
  color: var(--ink-3);
  min-height: 1.2em;
}

.pis-fineprint.is-error {
  color: var(--error);
}

.pis-success {
  text-align: center;
  padding-block: 2.4rem;
}

.pis-success__mark {
  width: 2.6rem;
  height: 2.6rem;
  margin: 0 auto 1rem;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: color-mix(in srgb, var(--blueprint) 12%, transparent);
  color: var(--blueprint);
  font-size: 1.2rem;
  font-weight: 700;
}

.pis-success h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.55rem;
}

.pis-success p {
  color: var(--ink-2);
  max-width: 28ch;
  margin-inline: auto;
}

.pis-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0 1.6rem;
  color: var(--ink-3);
  font-size: 0.875rem;
}

.pis-footer a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .pis-submit .spinner { animation: none; }
}