/* Genstone Preference Center — brand-locked styles
   Source of truth: genstone-brand skill (colors, typography, buttons) */

:root {
  --gs-blue:   #00569E;
  --gs-orange: #FA6C00;
  --gs-black:  #18211F;
  --gs-gray:   #F2F2F2;
  --gs-white:  #FFFFFF;
  --gs-blue-deep: #003E73;
  --gs-shadow-sm: 0 1px 2px rgba(24,33,31,.06);
  --gs-shadow-md: 0 6px 18px rgba(24,33,31,.08);
  --gs-shadow-lg: 0 20px 48px rgba(24,33,31,.14);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--gs-gray);
  color: var(--gs-black);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--gs-blue); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 0.92; letter-spacing: -0.03em; color: var(--gs-black); margin: 0 0 12px; }
h1 { font-size: clamp(29px, 4vw, 45px); font-weight: 700; }
h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 600; }
h3 { font-size: clamp(20px, 2.5vw, 28px); font-weight: 600; }
p  { margin: 0 0 16px; }

/* ── Header / Footer ───────────────────────────────────────── */
.gs-header {
  background: var(--gs-white);
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--gs-shadow-sm);
}
.gs-logo-link { display: inline-flex; align-items: center; }
.gs-logo-img { height: 32px; width: auto; display: block; }
.gs-nav-meta {
  font-size: 14px;
  font-weight: 500;
  color: var(--gs-blue);
  letter-spacing: -0.01em;
}

.gs-footer {
  text-align: center;
  padding: 32px 24px 48px;
  font-size: 13px;
  color: #555;
}
.gs-footer p { margin: 6px 0; }
.gs-footer .tiny { font-size: 12px; color: #777; }

.gs-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 32px;
}

/* ── Spinner ───────────────────────────────────────────────── */
.gs-spinner { text-align: center; padding: 80px 0; }
.gs-spinner div {
  width: 44px; height: 44px; border-radius: 50%;
  border: 4px solid rgba(0,86,158,.15);
  border-top-color: var(--gs-blue);
  margin: 0 auto 16px;
  animation: spin 0.8s linear infinite;
}
.gs-spinner span { color: #666; font-size: 14px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Card / Screen ─────────────────────────────────────────── */
.gs-card {
  background: var(--gs-white);
  border-radius: 16px;
  box-shadow: var(--gs-shadow-md);
  padding: 48px 56px;
  margin-bottom: 24px;
}
@media (max-width: 600px) { .gs-card { padding: 32px 24px; } }

.gs-eyebrow {
  display: inline-block;
  background: var(--gs-gray);
  color: var(--gs-blue);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 6px 14px;
  border-radius: 9999px;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.gs-lede {
  font-size: 18px;
  color: #2a3330;
  margin-bottom: 28px;
  line-height: 1.55;
}

.gs-actions {
  display: flex; gap: 12px; flex-wrap: wrap;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--gs-gray);
}
.gs-actions.right { justify-content: flex-end; }

/* ── Buttons (per genstone-brand skill) ───────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px;
  font-family: inherit; font-weight: 600; font-size: 15px;
  letter-spacing: -0.02em;
  border: 0; border-radius: 9999px;
  cursor: pointer;
  transition: transform .1s ease, box-shadow .15s ease, background .15s ease;
  text-decoration: none;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--gs-shadow-md); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }

.btn-primary       { background: var(--gs-blue);   color: #fff; }
.btn-primary:hover { background: var(--gs-blue-deep); }
.btn-accent        { background: var(--gs-orange); color: #fff; }
.btn-dark          { background: var(--gs-black);  color: #fff; }
.btn-ghost-blue    { background: var(--gs-gray); color: var(--gs-blue); }
.btn-ghost-orange  { background: var(--gs-gray); color: var(--gs-orange); }
.btn-ghost-dark    { background: var(--gs-gray); color: var(--gs-black); }

.btn-lg { padding: 18px 44px; font-size: 16px; }

/* ── Group / Publication toggles ──────────────────────────── */
.gs-group, .gs-pub {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 20px;
  background: var(--gs-gray);
  border-radius: 14px;
  margin-bottom: 12px;
  transition: background .15s;
}
.gs-group:hover, .gs-pub:hover { background: #eaeaea; }

.gs-group-text { flex: 1; }
.gs-group-name {
  font-size: 17px; font-weight: 600;
  color: var(--gs-black);
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}
.gs-group-desc { font-size: 14px; color: #555; margin: 0; }

.gs-pub-name { font-size: 15px; font-weight: 500; color: var(--gs-black); margin: 0; }
.gs-pub-meta { font-size: 12px; color: #666; margin: 4px 0 0; }

/* iOS-style toggle */
.gs-toggle {
  position: relative;
  width: 48px; height: 28px;
  flex-shrink: 0;
  cursor: pointer;
  margin-top: 2px;
}
.gs-toggle input { opacity: 0; width: 0; height: 0; }
.gs-toggle .slider {
  position: absolute; inset: 0;
  background: #c7c7c7;
  border-radius: 9999px;
  transition: .2s;
}
.gs-toggle .slider::before {
  content: ''; position: absolute;
  width: 22px; height: 22px;
  left: 3px; top: 3px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0,0,0,.2);
  transition: .2s;
}
.gs-toggle input:checked + .slider { background: var(--gs-blue); }
.gs-toggle input:checked + .slider::before { transform: translateX(20px); }

/* Checkbox-style for screen 2 */
.gs-check { accent-color: var(--gs-orange); width: 22px; height: 22px; margin-top: 2px; }

/* Duration radio pills (screen 3) */
.gs-duration {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-top: 10px;
}
.gs-duration label {
  display: inline-flex; align-items: center; gap: 6px;
  background: #fff;
  border: 2px solid #d8d8d8;
  border-radius: 9999px;
  padding: 8px 16px;
  font-size: 13px; font-weight: 500;
  cursor: pointer;
  transition: all .15s;
}
.gs-duration label:hover { border-color: var(--gs-blue); }
.gs-duration input { display: none; }
.gs-duration input:checked + span { color: var(--gs-blue); }
.gs-duration label:has(input:checked) {
  border-color: var(--gs-blue);
  background: #f0f7ff;
}

/* Anti-unsub callout */
.gs-callout {
  background: linear-gradient(135deg, #f0f7ff 0%, #fff5ec 100%);
  border-left: 4px solid var(--gs-orange);
  padding: 20px 24px;
  border-radius: 12px;
  margin: 24px 0;
}
.gs-callout strong { color: var(--gs-blue); display: block; margin-bottom: 6px; }

/* ── Popup ────────────────────────────────────────────────── */
.gs-popup {
  position: fixed; inset: 0;
  background: rgba(24,33,31,.55);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  padding: 24px;
  animation: fade .2s ease;
}
.gs-popup[hidden] { display: none; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.gs-popup-card {
  background: #fff;
  border-radius: 20px;
  padding: 40px;
  max-width: 480px;
  box-shadow: var(--gs-shadow-lg);
  text-align: center;
}
.gs-popup-card h2 { font-size: 28px; margin-bottom: 12px; }
.gs-popup-card p  { font-size: 15px; color: #444; margin-bottom: 24px; }
.gs-popup-actions {
  display: flex; gap: 10px; flex-direction: column;
}
.gs-popup-actions .btn { width: 100%; justify-content: center; }

/* ── Thank-you screen ─────────────────────────────────────── */
.gs-thanks {
  text-align: center;
  padding: 60px 40px;
}
.gs-thanks .check {
  width: 80px; height: 80px;
  background: var(--gs-blue);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px;
  color: #fff; font-size: 42px;
}

/* ── Progress dots ────────────────────────────────────────── */
.gs-progress { display: flex; gap: 8px; justify-content: center; margin-bottom: 24px; }
.gs-progress span {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #ccc;
  transition: all .2s;
}
.gs-progress span.active { background: var(--gs-blue); width: 24px; border-radius: 9999px; }