/* ============================================================
   THEME TOKENS (APP SHARED)
   ============================================================ */

/* Tokens map to the app palette in ui/theme.css. */
:root {
  color-scheme: light dark;
  --sa-bg: var(--bg);
  --sa-text: var(--text);
  --sa-muted: var(--muted);
  --sa-border-soft: var(--borderB);
  --sa-border-strong: var(--borderA);
  --sa-card-bg: var(--panelA);
  --sa-shadow-soft: var(--shadow);
  --sa-orange: var(--focus);
  --sa-orange-deep: var(--ok);
  --sa-orange-soft: var(--infoBg);
  --sa-orange-soft2: var(--infoHoverBg);
  --sa-header-bg: var(--panelA);
  --sa-strip-bg: var(--panelA);
  --sa-mark-from: var(--focus);
  --sa-mark-to: var(--ok);
}

/* ============================================================
   RESET / BASE
   ============================================================ */

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

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

html { font-size: 15px; }

body.home-join {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, sans-serif;
  color: var(--sa-text);

  /* 3-row layout: header / hero+footer / no scroll */
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  height: 100vh;
  overflow: hidden;

  /* ambient background */
  background:
    radial-gradient(900px 600px at 8% 80%, var(--bgGlow1), transparent 55%),
    radial-gradient(880px 620px at 92% 10%, var(--bgGlow2), transparent 55%),
    var(--sa-bg);
}

@media (max-width: 720px) {
  body.home-join {
    height: auto;
    min-height: 100vh;
    overflow-y: auto;
  }
}

body.home-join a:not(.sa-join) {
  color: inherit;
  text-decoration: none;
}
body.home-join a:not(.sa-join):hover {
  text-decoration: underline;
}

/* screen-reader-only helper */
body.home-join .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   HEADER
   ============================================================ */

body.home-join .sa-topbar {
  flex: 0 0 auto;
  background: var(--sa-header-bg);
  border-bottom: 1px solid var(--sa-border-soft);
  backdrop-filter: blur(10px);
}

body.home-join .sa-topbar-inner {
  width: min(1120px, calc(100% - 56px));
  margin: 0 auto;
  padding: 14px 0;

  display: flex;
  align-items: center;
  gap: 16px;
}

body.home-join .sa-actions {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

/* Brand */
body.home-join .sa-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  letter-spacing: -0.02em;
}

body.home-join .sa-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #ffffff;
  font-weight: 900;
  font-size: 16px;
  background: linear-gradient(135deg, var(--sa-mark-from), var(--sa-mark-to));
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

body.home-join .sa-name {
  font-size: 20px;
}

/* Nav cluster */
body.home-join .sa-nav {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--sa-muted);
  font-size: 14px;
}

body.home-join .sa-nav-link {
  padding: 6px 6px;
  border-radius: 8px;
}
body.home-join .sa-nav-link:hover {
  background: rgba(15, 23, 42, 0.06);
  color: var(--sa-text);
  text-decoration: none;
}

body.home-join .sa-sep {
  color: rgba(148, 163, 184, 0.9);
  font-size: 14px;
}
body.home-join .sa-sep-signin {
  margin: 0 4px;
}

/* Theme toggle */
body.home-join .sa-theme-toggle {
  border: 1px solid var(--sa-border-soft);
  border-radius: 999px;
  background: transparent;
  width: 34px;
  height: 34px;
  margin-left: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
}
body.home-join .sa-theme-toggle:hover {
  background: rgba(15, 23, 42, 0.06);
}

body.home-join .sa-theme-icon {
  width: 18px;
  height: 18px;
  stroke: var(--sa-muted);
  fill: none;
}

/* show correct icon per theme */
html[data-theme="light"] .sa-theme-icon-sun {
  display: block;
}
html[data-theme="light"] .sa-theme-icon-moon {
  display: none;
}
html[data-theme="dark"] .sa-theme-icon-sun {
  display: none;
}
html[data-theme="dark"] .sa-theme-icon-moon {
  display: block;
}

/* Sign-in button */
body.home-join .sa-signin {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--sa-border-strong);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,0));
  color: var(--sa-text);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: -0.01em;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
}

body.home-join .sa-signin::after {
  content: "→";
  font-size: 16px;
  line-height: 1;
}

body.home-join .sa-signin:hover {
  background: linear-gradient(180deg, var(--sa-orange-soft2), transparent);
  border-color: var(--sa-orange);
  text-decoration: none;
  transform: translateY(-1px);
}

@media (max-width: 720px) {
  body.home-join .sa-signin {
    font-size: 14px;
    padding: 8px 16px;
    white-space: nowrap;
  }
}

/* ============================================================
   MAIN / HERO + FOOTER
   ============================================================ */

body.home-join .sa-hero {
  /* this fills the remaining viewport between header and footer strip */
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

/* HERO CENTER BLOCK */
body.home-join .sa-hero-inner {
  flex: 1 1 auto; /* take all available space above footer */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;

  width: min(960px, calc(100% - 56px));
  margin: 0 auto;
  text-align: center;
  padding: 20px 0;
}

/* Headline */
body.home-join .sa-h1 {
  margin: 0;
  font-size: clamp(40px, 4.5vw, 60px);
  letter-spacing: -0.04em;
  line-height: 1.05;
}

body.home-join .sa-choice {
  position: relative;
  display: inline-flex;
  align-items: center;
  margin: 0 6px;
}

body.home-join .sa-choice-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--sa-border-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--sa-text);
  font: inherit;
  font-weight: 800;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

body.home-join .sa-choice-trigger:hover {
  background: var(--sa-orange-soft);
  border-color: var(--sa-orange);
}

body.home-join .sa-choice-trigger:active {
  transform: translateY(1px);
}

body.home-join .sa-choice-caret {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

body.home-join .sa-choice-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translate(-50%, -6px);
  min-width: 200px;
  padding: 6px;
  border-radius: 12px;
  border: 1px solid var(--sa-border-strong);
  background: var(--sa-card-bg);
  box-shadow: var(--sa-shadow-soft);
  display: grid;
  gap: 4px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
  z-index: 20;
}

body.home-join .sa-choice.is-open .sa-choice-menu,
body.home-join .sa-choice:hover .sa-choice-menu,
body.home-join .sa-choice:focus-within .sa-choice-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

body.home-join .sa-choice-option {
  border: 1px solid transparent;
  background: transparent;
  color: var(--sa-text);
  text-align: left;
  padding: 8px 10px;
  border-radius: 10px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

body.home-join .sa-choice-option:hover,
body.home-join .sa-choice-option:focus {
  outline: none;
  border-color: var(--sa-border-strong);
  background: rgba(255, 255, 255, 0.06);
}

body.home-join .sa-choice-option[aria-selected="true"] {
  display: none;
}

body.home-join .sa-choice.is-swapping .sa-choice-value {
  animation: saChoiceSwap 240ms ease;
}

@keyframes saChoiceSwap {
  0% { opacity: 1; transform: translateY(0); }
  40% { opacity: 0; transform: translateY(-6px); }
  60% { opacity: 0; transform: translateY(6px); }
  100% { opacity: 1; transform: translateY(0); }
}

@media (max-width: 720px) {
  body.home-join .sa-break {
    display: none;
  }

  body.home-join .sa-choice-trigger {
    padding: 3px 8px;
    font-size: 0.88em;
    gap: 4px;
  }

  body.home-join .sa-choice-menu {
    min-width: 180px;
    font-size: 0.5em; /* keep menu readable without covering the page */
    padding: 5px;
  }

  body.home-join .sa-choice-option {
    padding: 7px 9px;
  }
}

@media (max-width: 520px) {
  body.home-join .sa-choice-trigger {
    font-size: 0.82em;
    padding: 2px 6px;
  }

  body.home-join .sa-choice-menu {
    font-size: 0.46em;
    min-width: 168px;
  }
}

/* Caption */
body.home-join .sa-sub {
  margin: 18px auto 28px;
  max-width: 60ch;
  color: var(--sa-muted);
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.7;
}

/* Card around email form */
body.home-join .sa-card {
  width: min(880px, 100%);
  margin: 0 auto;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid var(--sa-border-soft);
  background: var(--sa-card-bg);
  box-shadow: var(--sa-shadow-soft);
}

/* Form layout */
body.home-join .sa-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  column-gap: 14px;
  row-gap: 0;
  align-items: center;
}

/* Input shell */
body.home-join .sa-input-wrap {
  border-radius: 12px;
  border: 1px solid var(--sa-border-strong);
  background: rgba(255, 255, 255, 0.02);
  padding: 6px 10px;
}

/* Input element */
body.home-join .sa-input {
  width: 100%;
  border: none;
  outline: none;
  background: transparent;
  font-size: 15px;
  line-height: 1.4;
  padding: 5px 4px;
  color: var(--sa-text);
}
body.home-join .sa-input::placeholder {
  color: rgba(148, 163, 184, 0.9);
}

/* CTA button */
body.home-join .sa-btn {
  border: none;
  cursor: pointer;
  padding: 14px 22px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 900;
  color: #ffffff;
  background: linear-gradient(180deg, var(--sa-orange), var(--sa-orange-deep));
  box-shadow: 0 18px 46px rgba(249, 115, 22, 0.25);
  white-space: nowrap;
}
body.home-join .sa-btn:hover {
  filter: brightness(0.97);
}
body.home-join .sa-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Status + privacy under card */
body.home-join .sa-meta {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: space-between;
  flex-wrap: wrap;
  grid-column: 1 / -1;
  color: var(--sa-muted);
  font-size: 13px;
}

body.home-join .sa-status {
  font-size: 13px;
}
body.home-join .sa-privacy {
  font-size: 13px;
}

/* Launch countdown */
body.home-join .sa-launch {
  display: flex;
  justify-content: center;
  padding: 16px 0 22px;
  color: var(--sa-muted);
}

body.home-join .sa-launch-inner {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--sa-border-soft);
  background: rgba(255, 255, 255, 0.04);
  font-size: clamp(13px, 1.3vw, 16px);
  font-weight: 700;
  letter-spacing: -0.01em;
}

body.home-join .sa-launch-count {
  color: var(--sa-text);
  font-weight: 800;
}

@media (max-width: 720px) {
  body.home-join .sa-form {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "input input"
      "meta button";
    row-gap: 10px;
    column-gap: 12px;
    align-items: center;
  }

  body.home-join .sa-input-wrap {
    grid-area: input;
  }

  body.home-join .sa-meta {
    grid-area: meta;
    margin-top: 0;
    justify-content: flex-start;
  }

  body.home-join .sa-btn {
    grid-area: button;
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  body.home-join .sa-btn::after {
    content: "→";
    font-size: 16px;
    line-height: 1;
  }

  body.home-join .sa-btn-label {
    display: none;
  }

  body.home-join .sa-launch {
    padding: 12px 0 18px;
  }

  body.home-join .sa-launch-inner {
    font-size: 13px;
    padding: 6px 12px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}