/* ==========================================================================
   500 Clinicians — styles
   Strictly monochrome. Edit the tokens below to adjust the whole site.
   ========================================================================== */

@font-face {
  font-family: "Inter";
  src: url("/fonts/inter-var-latin.woff2") format("woff2-variations"),
       url("/fonts/inter-var-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --black: #0a0a0a;
  --white: #ffffff;
  --grey-50: #f6f6f6;
  --grey-100: #ececec;
  --grey-200: #dcdcdc;
  --grey-400: #9a9a9a;
  --grey-500: #737373;
  --grey-600: #545454;
  --grey-700: #3a3a3a;
  --grey-900: #1a1a1a;

  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --gutter: clamp(1.25rem, 5vw, 4rem);
  --max: 82rem;
  --radius: 999px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

body:has(dialog[open]) { overflow: hidden; }

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

a { color: inherit; }

:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 4px;
  border-radius: 4px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem; top: -4rem;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  background: var(--black);
  color: var(--white);
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 1rem; }

.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  --btn-bg: var(--black);
  --btn-fg: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-height: 3.5rem;
  padding: 0 1.75rem 0 2rem;
  font: inherit;
  font-size: 1.0625rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  line-height: 1;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1.5px solid var(--btn-bg);
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.35s var(--ease), background-color 0.25s ease, color 0.25s ease, box-shadow 0.35s var(--ease);
}

.btn .arrow {
  width: 1.125rem;
  height: 1.125rem;
  flex: none;
  transition: transform 0.35s var(--ease);
}

.btn:hover { box-shadow: 0 10px 30px -12px rgba(0, 0, 0, 0.45); transform: translateY(-1px); }
.btn:hover .arrow { transform: translateX(3px); }
.btn:active { transform: translateY(0) scale(0.985); }

.btn--light { --btn-bg: var(--white); --btn-fg: var(--black); }
.btn--light:hover { box-shadow: 0 10px 30px -12px rgba(255, 255, 255, 0.35); }

.btn--lg {
  min-height: 4.25rem;
  padding: 0 2.25rem 0 2.5rem;
  font-size: clamp(1.0625rem, 1.2vw + 0.75rem, 1.3125rem);
}

.btn--sm {
  min-height: 2.75rem;
  padding: 0 1.25rem;
  font-size: 0.9375rem;
}

.btn--block { width: 100%; }

.btn[disabled],
.btn[aria-disabled="true"] { cursor: progress; opacity: 0.75; transform: none; box-shadow: none; }

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  transition: background-color 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
  border-bottom: 1px solid transparent;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.site-header__logo {
  display: block;
  width: 6.5rem;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}

.site-header__cta {
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), box-shadow 0.35s var(--ease);
}

.is-scrolled .site-header {
  background: rgba(255, 255, 255, 0.82);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--grey-100);
}

.is-scrolled .site-header__logo,
.is-scrolled .site-header__cta {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

/* Simple pages (privacy) always show the header */
.page-simple .site-header { position: sticky; background: var(--white); border-bottom-color: var(--grey-100); }
.page-simple .site-header__logo,
.page-simple .site-header__cta { opacity: 1; transform: none; pointer-events: auto; }

@media (max-width: 640px) {
  .site-header__cta { display: none; }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding-block: 7rem 6rem;
  overflow: hidden;
}

.hero__inner {
  display: grid;
  gap: clamp(2.5rem, 6vw, 4.5rem);
  justify-items: start;
}

.hero__title {
  margin: 0;
  width: min(100%, 60rem);
}

.hero__logo {
  width: 100%;
  height: auto;
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 2rem;
  width: 1px;
  height: 3.5rem;
  background: var(--grey-200);
  overflow: hidden;
  transform: translateX(-50%);
}

.hero__scroll::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--black);
  transform: translateY(-100%);
  animation: scrollcue 2.4s var(--ease) infinite;
}

@keyframes scrollcue {
  0% { transform: translateY(-100%); }
  55% { transform: translateY(0); }
  100% { transform: translateY(100%); }
}

/* Hero load-in */
.js .hero__title,
.js .hero__cta {
  animation: rise 1.1s var(--ease) backwards;
}
.js .hero__title { animation-delay: 0.05s; }
.js .hero__cta { animation-delay: 0.35s; }

@keyframes rise { from { opacity: 0; transform: translateY(18px); } }

/* --------------------------------------------------------------------------
   Statement sections
   -------------------------------------------------------------------------- */

.statement {
  padding-block: clamp(6rem, 16vw, 12rem);
  border-top: 1px solid var(--grey-100);
}

.statement__grid {
  display: grid;
  gap: 2rem 4rem;
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .statement__grid { grid-template-columns: 5rem minmax(0, 1fr); }
  .statement__body { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 4rem; align-items: end; }
}

.statement__index {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--grey-500);
  font-variant-numeric: tabular-nums;
  padding-top: 0.9em;
}

.statement h2,
.cta h2 {
  margin: 0;
  font-size: clamp(2.5rem, 6.4vw, 5.75rem);
  line-height: 0.98;
  font-weight: 800;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.statement p {
  margin: 0;
  max-width: 34ch;
  font-size: clamp(1.125rem, 0.6vw + 1rem, 1.375rem);
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: var(--grey-600);
  text-wrap: pretty;
}

/* Inverted section */
.statement--dark {
  background: var(--black);
  color: var(--white);
  border-top: 0;
}
.statement--dark .statement__index { color: var(--grey-400); }
.statement--dark p { color: var(--grey-400); }

/* 500-dot field */
.dots {
  margin-top: clamp(4rem, 9vw, 7rem);
  display: grid;
  grid-template-columns: repeat(25, 1fr);
  gap: clamp(6px, 1.2vw, 14px);
  max-width: 100%;
}

@media (max-width: 640px) {
  .dots { grid-template-columns: repeat(20, 1fr); gap: 7px; }
}

.dots span {
  display: block;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--grey-700);
  transform: scale(0.55);
  transition: background-color 0.6s ease, transform 0.8s var(--ease);
  transition-delay: calc(var(--i, 0) * 2.2ms);
}

.dots.is-visible span {
  background: var(--white);
  transform: scale(1);
}

/* --------------------------------------------------------------------------
   Call to action
   -------------------------------------------------------------------------- */

.cta {
  padding-block: clamp(7rem, 18vw, 13rem);
  text-align: center;
}

.cta__inner {
  display: grid;
  justify-items: center;
  gap: clamp(2.5rem, 5vw, 3.5rem);
}

.cta h2 { max-width: 14ch; }

/* --------------------------------------------------------------------------
   Mobile sticky CTA
   -------------------------------------------------------------------------- */

.mobile-cta {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 15;
  padding: 0.75rem var(--gutter) calc(0.75rem + env(safe-area-inset-bottom));
  background: linear-gradient(to top, rgba(255, 255, 255, 1) 55%, rgba(255, 255, 255, 0));
  transform: translateY(110%);
  transition: transform 0.45s var(--ease);
  pointer-events: none;
}

.mobile-cta.is-visible { transform: none; pointer-events: auto; }

@media (min-width: 641px) {
  .mobile-cta { display: none; }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--grey-100);
  padding-block: 2rem calc(2rem + env(safe-area-inset-bottom));
  font-size: 0.875rem;
  color: var(--grey-500);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  justify-content: space-between;
  align-items: center;
}

.site-footer p { margin: 0; }

.site-footer a {
  text-decoration: none;
  color: var(--grey-600);
  transition: color 0.2s ease;
}
.site-footer a:hover { color: var(--black); text-decoration: underline; text-underline-offset: 3px; }

@media (max-width: 640px) {
  .page-home .site-footer { padding-bottom: calc(6rem + env(safe-area-inset-bottom)); }
}

/* --------------------------------------------------------------------------
   Reveal on scroll (only when JS is available)
   -------------------------------------------------------------------------- */

.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}
.js .reveal.is-visible { opacity: 1; transform: none; }
.js .reveal[data-delay="1"] { transition-delay: 0.12s; }

/* --------------------------------------------------------------------------
   Registration dialog
   -------------------------------------------------------------------------- */

.join {
  width: min(100% - 2rem, 34rem);
  max-height: calc(100dvh - 2rem);
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: 1.5rem;
  background: var(--white);
  color: var(--black);
  box-shadow: 0 40px 120px -30px rgba(0, 0, 0, 0.5);
  overflow: auto;
  overscroll-behavior: contain;
}

.join::backdrop {
  background: rgba(10, 10, 10, 0.55);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.join[open] { animation: dialog-in 0.5s var(--ease); }
.join[open]::backdrop { animation: fade-in 0.4s ease; }

@keyframes dialog-in {
  from { opacity: 0; transform: translateY(24px) scale(0.98); }
  to { opacity: 1; transform: none; }
}
@keyframes fade-in { from { opacity: 0; } }

/* No-JS fallback: show the dialog when targeted by #join */
.join:target:not([open]) {
  display: block;
  position: fixed;
  inset: 0;
  z-index: 50;
}

@media (max-width: 640px) {
  .join {
    width: 100%;
    max-width: 100%;
    height: 100%;
    max-height: 100%;
    border-radius: 0;
    margin: 0;
  }
  @keyframes dialog-in {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: none; }
  }
}

.join__inner {
  position: relative;
  padding: clamp(2rem, 6vw, 3rem);
  padding-bottom: calc(clamp(2rem, 6vw, 3rem) + env(safe-area-inset-bottom));
}

.join__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 0;
  border-radius: 50%;
  background: var(--grey-50);
  color: var(--black);
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.3s var(--ease);
}
.join__close:hover { background: var(--grey-100); transform: rotate(90deg); }
.join__close svg { width: 1.125rem; height: 1.125rem; }

.join h2 {
  margin: 0 3rem 0.75rem 0;
  font-size: clamp(1.875rem, 4vw, 2.5rem);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.join__intro {
  margin: 0 0 2rem;
  color: var(--grey-600);
}

.field { margin-bottom: 1.25rem; }

.field label {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.005em;
}

.field label .req { color: var(--grey-500); font-weight: 500; }
.field label .opt { color: var(--grey-500); font-weight: 450; }

.field input {
  display: block;
  width: 100%;
  min-height: 3.375rem;
  padding: 0.875rem 1.125rem;
  font: inherit;
  font-size: 1rem; /* 16px+ prevents iOS zoom on focus */
  color: var(--black);
  background: var(--grey-50);
  border: 1.5px solid var(--grey-50);
  border-radius: 0.875rem;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.field input::placeholder { color: var(--grey-500); opacity: 1; }

.field input:hover { border-color: var(--grey-200); }

.field input:focus {
  outline: none;
  background: var(--white);
  border-color: var(--black);
  box-shadow: 0 0 0 4px rgba(10, 10, 10, 0.08);
}

.field input[aria-invalid="true"] {
  background: var(--white);
  border-color: var(--black);
  border-style: dashed;
}

.field__error {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  font-weight: 550;
  color: var(--black);
}
.field__error:empty { display: none; }
.field__error::before {
  content: "!";
  display: inline-grid;
  place-items: center;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 50%;
  background: var(--black);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 800;
  flex: none;
}

.join__notice {
  margin: 1.75rem 0 1.75rem;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--grey-600);
}
.join__notice a { color: var(--black); font-weight: 600; text-underline-offset: 3px; }

.join__status {
  margin: 0 0 1rem;
  padding: 0.875rem 1rem;
  border-radius: 0.875rem;
  background: var(--grey-50);
  border: 1px solid var(--grey-200);
  font-size: 0.9375rem;
}
.join__status:empty { display: none; }

.honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.spinner {
  display: none;
  width: 1.125rem;
  height: 1.125rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.is-submitting .spinner { display: inline-block; }
.is-submitting .arrow { display: none; }

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

/* Confirmation */
.confirm {
  display: grid;
  justify-items: center;
  text-align: center;
  padding-block: clamp(2.5rem, 8vw, 4rem);
}

.confirm__icon {
  width: 4.5rem;
  height: 4.5rem;
  margin-bottom: 2rem;
  color: var(--black);
}

.confirm__icon circle {
  stroke-dasharray: 152;
  stroke-dashoffset: 152;
  animation: draw 0.8s var(--ease) 0.1s forwards;
}
.confirm__icon path {
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  animation: draw 0.5s var(--ease) 0.6s forwards;
}
@keyframes draw { to { stroke-dashoffset: 0; } }

.confirm h1,
.confirm h2 {
  margin: 0 0 0.75rem;
  max-width: 16ch;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.confirm p { margin: 0; color: var(--grey-600); font-size: 1.125rem; }

.confirm .btn { margin-top: 2.5rem; }

[hidden] { display: none !important; }

/* Standalone confirmation page (no-JS fallback) */
.page-confirm main {
  min-height: calc(100svh - 10rem);
  display: grid;
  place-items: center;
}

/* --------------------------------------------------------------------------
   Privacy Notice
   -------------------------------------------------------------------------- */

.legal {
  padding-block: clamp(4rem, 10vw, 7rem) clamp(5rem, 12vw, 8rem);
}

.legal__inner { max-width: 44rem; }

.legal h1 {
  margin: 0 0 1.5rem;
  font-size: clamp(2.75rem, 7vw, 5rem);
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.045em;
}

.legal__meta {
  margin: 0 0 3.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--grey-100);
  color: var(--grey-600);
}
.legal__meta p { margin: 0; }
.legal__meta strong { color: var(--black); font-weight: 650; }

.legal h3 {
  margin: 3rem 0 0.875rem;
  font-size: 1.375rem;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.legal p,
.legal li { color: var(--grey-700); }

.legal p { margin: 0 0 1rem; }

.legal ul { margin: 0 0 1rem; padding-left: 1.25rem; }
.legal li { margin-bottom: 0.375rem; }
.legal li::marker { color: var(--grey-400); }

.legal a { color: var(--black); font-weight: 600; text-underline-offset: 3px; }

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0s !important;
  }
  .js .reveal,
  .js .hero__title,
  .js .hero__cta { opacity: 1; transform: none; }
  .hero__scroll { display: none; }
}