/* ============================================================
   StayStack — site styles (landing + auth)
   Layers on top of ss-tokens.css (the design-system tokens).
   ============================================================ */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  max-width: 100%;
  background: var(--bg-page);
  color: var(--fg-default);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }

/* ---- Top bar ---- */
.site-header {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 56px);
}
.site-header .brand img { height: 44px; width: auto; display: block; }
.site-header .nav { display: flex; align-items: center; gap: 8px; }
.signin-link {
  text-decoration: none;
  color: var(--ink-900);
  font-size: 15px;
  font-weight: var(--fw-medium);
  padding: 9px 16px;
  border-radius: var(--r-pill);
  transition: background var(--dur-2) var(--ease-calm);
}
.signin-link:hover { background: var(--cream-100); }

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 140px clamp(20px, 5vw, 56px) 96px;
  overflow: hidden;
}
/* Signal waves drift behind, biased to the upper area.
   Scoped with .hero for specificity so it beats the position:relative
   rule that signal-waves.js injects for .ss-waves at runtime. */
.hero .hero-waves {
  position: absolute;
  inset: -5% -5% 30% -5%;
  z-index: 0;
  pointer-events: none;
}
/* Cream protection gradient keeps the type crisp over the waves */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(120% 80% at 50% 58%, var(--cream-50) 30%, rgba(251,247,240,0.78) 52%, rgba(251,247,240,0) 78%),
    linear-gradient(180deg, rgba(251,247,240,0) 0%, rgba(251,247,240,0) 55%, var(--cream-50) 92%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 760px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}
.eyebrow {
  font-size: 12px;
  font-weight: var(--fw-semi);
  text-transform: uppercase;
  letter-spacing: var(--tr-eyebrow);
  color: var(--signal-800);
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--signal-700);
  box-shadow: 0 0 0 4px rgba(31,111,229,0.14);
}
.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(46px, 9.5vw, 132px);
  font-weight: var(--fw-light);
  letter-spacing: -0.035em;
  line-height: 0.98;
  color: var(--ink-1000);
  text-wrap: balance;
  max-width: 100%;
}
.hero .sub {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: var(--fw-regular);
  color: var(--ink-900);
  line-height: 1.3;
}
.hero .support {
  margin: 0;
  font-size: var(--fs-body-lg);
  color: var(--ink-700);
}

/* ---- Buttons ---- */
.cta-row { display: flex; gap: 12px; margin-top: 12px; flex-wrap: wrap; justify-content: center; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--r-pill);
  font-family: inherit;
  font-size: 15px;
  font-weight: var(--fw-medium);
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform var(--dur-2) var(--ease-calm),
              background var(--dur-2) var(--ease-calm),
              box-shadow var(--dur-2) var(--ease-calm);
}
.btn .arrow { transition: transform var(--dur-2) var(--ease-calm); }
.btn-primary {
  background: var(--ink-1000);
  color: var(--cream-50);
  box-shadow: var(--shadow-pill);
}
.btn-primary:hover { transform: translateY(-1px); background: #1d1d1b; }
.btn-primary:hover .arrow { transform: translateX(2px); }
.btn-primary:active { transform: scale(0.98); }
.btn-tertiary {
  background: transparent;
  color: var(--ink-1000);
  border: 1px solid var(--border-default);
}
.btn-tertiary:hover { background: var(--cream-100); transform: translateY(-1px); }
.btn-tertiary:active { transform: scale(0.98); }
.btn:focus-visible {
  outline: none;
  border-color: var(--signal-700);
  box-shadow: 0 0 0 4px rgba(31,111,229,0.16);
}
.btn-full { width: 100%; justify-content: center; }

/* ---- Demo request section ---- */
.demo {
  position: relative;
  background: var(--cream-100);
  border-top: 1px solid var(--border-soft);
  padding: clamp(64px, 9vw, 112px) clamp(20px, 5vw, 56px);
  display: flex;
  justify-content: center;
}
.demo-card {
  width: 100%;
  max-width: 520px;
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  padding: clamp(28px, 4vw, 44px);
  text-align: left;
}
.demo-card .eyebrow { margin-bottom: 14px; }
.demo-card h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: var(--fw-medium);
  letter-spacing: -0.015em;
  color: var(--ink-1000);
}
.demo-card .lead {
  margin: 0 0 24px;
  font-size: var(--fs-body);
  color: var(--ink-700);
}
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: var(--fs-body-sm);
  font-weight: var(--fw-medium);
  color: var(--ink-900);
  margin-bottom: 6px;
}
.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  font-family: inherit;
  font-size: var(--fs-body);
  color: var(--ink-1000);
  background: var(--white);
  border: 1px solid var(--border-default);
  border-radius: var(--r-md);
  transition: border-color var(--dur-2) var(--ease-calm), box-shadow var(--dur-2) var(--ease-calm);
}
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--signal-700);
  box-shadow: 0 0 0 4px rgba(31,111,229,0.12);
}
.form-group input::placeholder { color: var(--ink-300); }
.demo-card .btn-primary { margin-top: 6px; }
.demo-foot { margin: 18px 0 0; font-size: var(--fs-caption); color: var(--ink-500); }
.demo-foot a { color: var(--signal-800); }

/* ---- Footer ---- */
.site-footer {
  background: var(--cream-50);
  border-top: 1px solid var(--border-soft);
  padding: 28px clamp(20px, 5vw, 56px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer .copy { font-size: var(--fs-body-sm); color: var(--ink-500); }
.site-footer .links { display: flex; gap: 18px; }
.site-footer .links a {
  font-size: var(--fs-body-sm);
  color: var(--ink-700);
  text-decoration: none;
}
.site-footer .links a:hover { color: var(--ink-1000); text-decoration: underline; }

/* ---- Auth (sign in / thank-you) shared shell ---- */
.auth-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 96px 20px;
  position: relative;
  overflow: hidden;
}
.auth-shell .auth-waves { position: absolute; inset: -8% -8% 50% -8%; z-index: 0; pointer-events: none; opacity: 0.6; }
.auth-shell::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(120% 70% at 50% 40%, var(--cream-50) 35%, rgba(251,247,240,0.7) 60%, rgba(251,247,240,0) 85%);
}
.auth-logo { position: relative; z-index: 2; height: 52px; width: auto; margin-bottom: 28px; }
.auth-box {
  position: relative; z-index: 2;
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  padding: clamp(28px, 4vw, 40px);
  width: 100%;
  max-width: 400px;
  text-align: left;
}
.auth-box h1 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: var(--fw-medium);
  letter-spacing: -0.015em;
  color: var(--ink-1000);
  text-align: center;
}
.auth-box .auth-intro { margin: 0 0 24px; font-size: var(--fs-body-sm); color: var(--ink-500); text-align: center; }
.auth-box .error-message {
  background: #fbecea; border: 1px solid rgba(178,58,58,0.25); color: var(--danger);
  padding: 12px 14px; border-radius: var(--r-md); font-size: var(--fs-body-sm); margin-bottom: 18px;
}
.auth-footer { margin-top: 22px; font-size: var(--fs-body-sm); color: var(--ink-500); text-align: center; }
.auth-footer a { color: var(--signal-800); font-weight: var(--fw-medium); text-decoration: none; }
.auth-footer a:hover { text-decoration: underline; }
.auth-success { position: relative; z-index: 2; max-width: 460px; }
.auth-success .eyebrow { justify-content: center; margin-bottom: 18px; }
.auth-success h1 {
  margin: 0 0 12px; font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px); font-weight: var(--fw-light);
  letter-spacing: -0.03em; line-height: 1.02; color: var(--ink-1000);
}
.auth-success p { margin: 0 0 26px; font-size: var(--fs-body-lg); color: var(--ink-700); }

/* ---- Motion preferences ---- */
@media (prefers-reduced-motion: reduce) {
  .ss-waves-svg path { animation: none !important; }
  .btn { transition: none; }
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
  .hero { padding-top: 120px; }
  .cta-row { width: 100%; max-width: 320px; flex-direction: column; }
  .cta-row .btn { width: 100%; justify-content: center; }
  .site-footer { flex-direction: column; text-align: center; }
}