/* ============ Base ============ */
:root {
  --c-bg-deep: #0b0716;
  --c-bg-mid: #1a1233;
  --c-ink: #f4ecd6;
  --c-ink-soft: #cbbfa3;
  --c-ink-mute: #9c9081;
  --c-accent: #f5c45a; /* 金 */
  --c-accent-2: #c79534; /* 金の影 */
  --c-violet: #6b4ed8; /* 詠唱の紫 */
  --c-violet-glow: #a988ff;
  --c-line: rgba(245, 196, 90, 0.35);
  --c-line-soft: rgba(245, 196, 90, 0.18);
  --c-card-bg: rgba(18, 12, 36, 0.78);
  --c-card-bg-strong: rgba(12, 8, 24, 0.88);

  --font-body: "M PLUS Rounded 1c", "Hiragino Sans", system-ui, sans-serif;
  --font-display: "Mochiy Pop One", "M PLUS Rounded 1c", sans-serif;
  --font-title: "Dela Gothic One", "Mochiy Pop One", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: var(--c-ink);
  background: var(--c-bg-deep);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* ============ Background ============ */
.bg-layer {
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(107, 78, 216, 0.55) 0%, transparent 55%),
    linear-gradient(180deg, #0c0820 0%, #1a0f3a 40%, #0b0716 100%),
    url("https://stg-ultemist-assets.instansys.co.jp/scenario-backgrounds/gakuen-gate.png") center top / cover no-repeat;
  background-blend-mode: normal, multiply, normal;
  filter: saturate(0.85) brightness(0.55);
}
.bg-vignette {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 30%, transparent 0%, rgba(11, 7, 22, 0.65) 70%, rgba(11, 7, 22, 0.95) 100%),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.012) 0px, rgba(255,255,255,0.012) 1px, transparent 1px, transparent 3px);
}

/* ============ Hero ============ */
.hero {
  text-align: center;
  padding: 56px 24px 24px;
  position: relative;
}
.hero-inner {
  max-width: 720px;
  margin: 0 auto;
}
.hero-logo {
  width: min(64%, 380px);
  height: auto;
  filter: drop-shadow(0 0 24px rgba(169, 136, 255, 0.45)) drop-shadow(0 6px 16px rgba(0,0,0,0.6));
  margin-bottom: 8px;
}
.hero-eyebrow {
  font-family: var(--font-title);
  letter-spacing: 0.22em;
  font-size: 12px;
  color: var(--c-accent);
  margin: 16px 0 8px;
  text-shadow: 0 0 12px rgba(245, 196, 90, 0.45);
}
.hero-eyebrow::before,
.hero-eyebrow::after {
  content: "✦";
  margin: 0 12px;
  color: var(--c-accent-2);
  font-size: 10px;
  vertical-align: 2px;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(26px, 5.6vw, 40px);
  margin: 0 0 18px;
  background: linear-gradient(180deg, #fff3cd 0%, #f5c45a 60%, #c79534 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 2px 18px rgba(245, 196, 90, 0.25);
}
.hero-lead {
  color: var(--c-ink-soft);
  font-size: 15px;
  margin: 0 auto 28px;
  max-width: 540px;
}
.hero-platforms {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.platform-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 999px;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 14px;
  border: 1px solid var(--c-line);
  background: linear-gradient(180deg, rgba(40, 28, 80, 0.85), rgba(20, 14, 48, 0.85));
  color: var(--c-ink);
  box-shadow: 0 4px 0 rgba(0,0,0,0.35), 0 0 24px rgba(107, 78, 216, 0.25) inset;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.platform-pill:hover { transform: translateY(-1px); }
.platform-pill:active { transform: translateY(1px); box-shadow: 0 1px 0 rgba(0,0,0,0.35); }
.platform-pill--ios .platform-pill__icon::before {
  content: "";
  display: inline-block;
  width: 14px; height: 16px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 384 512'><path d='M318.7 268.7c-.2-36.7 16.4-64.4 50-84.8-18.8-26.9-47.2-41.7-84.7-44.6-35.5-2.8-74.3 20.7-88.5 20.7-15 0-49.4-19.7-76.4-19.7C63.3 141.2 4 184.8 4 273.5q0 39.3 14.4 81.2c12.8 36.7 59 126.7 107.2 125.2 25.2-.6 43-17.9 75.8-17.9 31.8 0 48.3 17.9 76.4 17.9 48.6-.7 90.4-82.5 102.6-119.3-65.2-30.7-61.7-90-61.7-91.9zM254.7 88.2c30.9-36.7 28.1-70.1 27.2-82.2-27.3 1.6-58.9 18.6-76.9 39.6-19.8 22.5-31.5 50.3-29 79.5 29.5 2.3 56.5-12.8 78.7-36.9z'/></svg>") center/contain no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 384 512'><path d='M318.7 268.7c-.2-36.7 16.4-64.4 50-84.8-18.8-26.9-47.2-41.7-84.7-44.6-35.5-2.8-74.3 20.7-88.5 20.7-15 0-49.4-19.7-76.4-19.7C63.3 141.2 4 184.8 4 273.5q0 39.3 14.4 81.2c12.8 36.7 59 126.7 107.2 125.2 25.2-.6 43-17.9 75.8-17.9 31.8 0 48.3 17.9 76.4 17.9 48.6-.7 90.4-82.5 102.6-119.3-65.2-30.7-61.7-90-61.7-91.9zM254.7 88.2c30.9-36.7 28.1-70.1 27.2-82.2-27.3 1.6-58.9 18.6-76.9 39.6-19.8 22.5-31.5 50.3-29 79.5 29.5 2.3 56.5-12.8 78.7-36.9z'/></svg>") center/contain no-repeat;
}
.platform-pill--android .platform-pill__icon {
  color: var(--c-ink-mute);
  font-size: 11px;
}

/* ============ Content layout ============ */
.content {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 20px 80px;
  position: relative;
  z-index: 1;
}

/* ============ Card ============ */
.card {
  background: var(--c-card-bg);
  border: 1px solid var(--c-line);
  border-radius: 18px;
  padding: 28px 26px 30px;
  margin-bottom: 28px;
  position: relative;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow:
    0 24px 60px -20px rgba(0,0,0,0.7),
    0 0 0 1px rgba(255,255,255,0.02) inset;
}
.card::before,
.card::after {
  content: "";
  position: absolute;
  width: 18px; height: 18px;
  border: 1px solid var(--c-accent);
  opacity: 0.7;
}
.card::before { top: -1px; left: -1px; border-right: none; border-bottom: none; border-top-left-radius: 18px; }
.card::after { bottom: -1px; right: -1px; border-left: none; border-top: none; border-bottom-right-radius: 18px; }

.card-heading {
  font-family: var(--font-display);
  font-size: 20px;
  margin: 0 0 18px;
  color: var(--c-accent);
  display: flex;
  align-items: center;
  gap: 12px;
  letter-spacing: 0.04em;
}
.card-heading__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(180deg, #f5c45a, #c79534);
  color: #2a1a05;
  font-family: var(--font-title);
  font-size: 16px;
  box-shadow: 0 0 16px rgba(245, 196, 90, 0.35);
}

.card--notice .notice-list {
  list-style: none;
  padding: 0; margin: 0;
}
.card--notice .notice-list li {
  position: relative;
  padding: 8px 0 8px 24px;
  color: var(--c-ink-soft);
  font-size: 14.5px;
  border-bottom: 1px dashed var(--c-line-soft);
}
.card--notice .notice-list li:last-child { border-bottom: none; }
.card--notice .notice-list li::before {
  content: "◆";
  position: absolute; left: 0; top: 8px;
  color: var(--c-accent);
  font-size: 10px;
}
.card--notice strong { color: var(--c-accent); font-weight: 700; }

/* ============ WIP (開発中) ============ */
.card--wip { background: var(--c-card-bg-strong); }
.wip-lead {
  margin: 0 0 14px;
  font-size: 14px;
  color: var(--c-ink-soft);
}
.wip-lead strong { color: var(--c-accent); }
.wip-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}
.wip-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: rgba(11, 7, 22, 0.55);
  border: 1px solid var(--c-line-soft);
  border-radius: 8px;
  font-size: 13.5px;
  color: var(--c-ink-soft);
}
.wip-tag {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  padding: 3px 8px;
  background: rgba(169, 136, 255, 0.15);
  border: 1px solid rgba(169, 136, 255, 0.4);
  border-radius: 4px;
  color: var(--c-violet-glow);
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.04em;
}

/* ============ Platform banner ============ */
.platform-banner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin: -28px -26px 24px;
  padding: 16px 26px;
  border-radius: 18px 18px 0 0;
  border-bottom: 1px solid var(--c-line);
  flex-wrap: wrap;
}
.platform-banner--ios {
  background: linear-gradient(180deg, rgba(107, 78, 216, 0.35), rgba(40, 24, 96, 0.15));
}
.platform-banner--android {
  background: linear-gradient(180deg, rgba(60, 60, 70, 0.3), rgba(30, 30, 40, 0.12));
}
.platform-banner__label {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--c-ink);
}
.platform-banner__sub {
  font-size: 12px;
  color: var(--c-ink-mute);
  letter-spacing: 0.12em;
}

/* ============ Explainer (TestFlight とは？等) ============ */
.explainer {
  background: rgba(107, 78, 216, 0.1);
  border: 1px solid rgba(169, 136, 255, 0.3);
  border-radius: 12px;
  padding: 16px 18px 14px;
  margin-bottom: 20px;
  position: relative;
}
.explainer__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.explainer__icon {
  flex-shrink: 0;
  width: 24px; height: 24px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, rgba(169, 136, 255, 0.9), rgba(107, 78, 216, 0.9));
  color: #fff;
  font-family: var(--font-title);
  font-size: 13px;
  font-style: italic;
  box-shadow: 0 0 10px rgba(169, 136, 255, 0.4);
}
.explainer__title {
  font-family: var(--font-display);
  font-size: 15px;
  margin: 0;
  color: var(--c-ink);
}
.explainer__text {
  font-size: 13.5px;
  color: var(--c-ink-soft);
  margin: 0 0 10px;
  line-height: 1.7;
}
.explainer__text strong { color: var(--c-violet-glow); font-weight: 700; }
.explainer__points {
  list-style: none;
  padding: 0;
  margin: 0;
}
.explainer__points li {
  position: relative;
  padding: 4px 0 4px 18px;
  font-size: 13px;
  color: var(--c-ink-soft);
}
.explainer__points li::before {
  content: "✦";
  position: absolute;
  left: 0; top: 4px;
  color: var(--c-violet-glow);
  font-size: 10px;
}

/* ============ Skip banner ============ */
.skip-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  margin-bottom: 24px;
  background: linear-gradient(180deg, rgba(245, 196, 90, 0.12), rgba(245, 196, 90, 0.04));
  border: 1px solid rgba(245, 196, 90, 0.35);
  border-radius: 10px;
  color: var(--c-ink-soft);
  text-decoration: none;
  font-size: 13.5px;
  transition: transform 0.1s ease, background 0.15s ease;
  scroll-margin-top: 12px;
}
.skip-banner:hover {
  background: linear-gradient(180deg, rgba(245, 196, 90, 0.18), rgba(245, 196, 90, 0.06));
  transform: translateY(-1px);
}
.skip-banner__icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(245, 196, 90, 0.18);
  color: var(--c-accent);
  font-size: 13px;
}
.skip-banner__text { line-height: 1.55; }
.skip-banner strong { color: var(--c-accent); font-weight: 700; }

/* ============ Steps ============ */
.steps {
  list-style: none;
  padding: 0; margin: 0;
  display: grid;
  gap: 24px;
}
.step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 18px;
  align-items: start;
  scroll-margin-top: 16px;
}
.step-num {
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-title);
  font-size: 20px;
  color: var(--c-ink);
  background:
    radial-gradient(circle at 50% 30%, rgba(169, 136, 255, 0.5), transparent 60%),
    linear-gradient(180deg, #2a1f5a 0%, #150d33 100%);
  border: 1px solid var(--c-line);
  box-shadow: 0 0 16px rgba(107, 78, 216, 0.35), 0 0 0 4px rgba(11, 7, 22, 0.8);
  position: relative;
}
.step-title {
  font-family: var(--font-display);
  font-size: 17px;
  margin: 4px 0 8px;
  color: var(--c-ink);
}
.step-text {
  font-size: 14.5px;
  color: var(--c-ink-soft);
  margin: 0 0 12px;
}
.step-text strong { color: var(--c-accent); font-weight: 700; }
.step-callout {
  font-size: 13px;
  color: var(--c-ink-soft);
  background: rgba(245, 196, 90, 0.06);
  border-left: 3px solid var(--c-accent);
  padding: 10px 14px;
  margin: 12px 0 0;
  border-radius: 0 8px 8px 0;
}
.step-callout strong { color: var(--c-accent); }
.callout-code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: var(--c-ink-soft);
  background: rgba(11, 7, 22, 0.6);
  padding: 2px 6px;
  border-radius: 4px;
  word-break: break-all;
}
.step-callout--info {
  background: rgba(107, 78, 216, 0.1);
  border-left-color: var(--c-violet-glow);
}

/* ============ Contact card ============ */
.contact-card {
  background: rgba(11, 7, 22, 0.7);
  border: 1px solid var(--c-line-soft);
  border-radius: 10px;
  padding: 14px 16px;
  display: grid;
  gap: 4px;
}
.contact-card__label {
  font-size: 11px;
  color: var(--c-ink-mute);
  letter-spacing: 0.1em;
}
.contact-card__value {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 15px;
  color: var(--c-accent);
  word-break: break-all;
}
.contact-card__note {
  font-size: 12px;
  color: var(--c-ink-mute);
  margin-top: 2px;
}

/* ============ Link button ============ */
.link-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  border-radius: 12px;
  background: linear-gradient(180deg, #f5c45a 0%, #c79534 100%);
  color: #2a1a05;
  font-family: var(--font-display);
  font-size: 14px;
  text-decoration: none;
  box-shadow: 0 4px 0 #8a5e1a, 0 8px 20px rgba(245, 196, 90, 0.3);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}
.link-button:hover { transform: translateY(-1px); }
.link-button:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 #8a5e1a, 0 2px 6px rgba(245, 196, 90, 0.3);
}
.link-button__arrow { font-size: 16px; }
.link-button--invite {
  background: linear-gradient(180deg, #b3a1ff 0%, #8364ff 50%, #5a3fc7 100%);
  color: #fff;
  box-shadow: 0 4px 0 #3a258a, 0 8px 20px rgba(132, 100, 255, 0.4);
}
.link-button--invite:active {
  box-shadow: 0 1px 0 #3a258a, 0 2px 6px rgba(132, 100, 255, 0.3);
}
.invite-url-note {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--c-ink-mute);
  word-break: break-all;
}
.invite-url-note code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  color: var(--c-ink-soft);
  background: rgba(11, 7, 22, 0.6);
  padding: 2px 6px;
  border-radius: 4px;
}
.link-button--large {
  padding: 18px 26px;
  font-size: 16px;
  border-radius: 16px;
}
.simple-lead {
  font-size: 15px;
  color: var(--c-ink-soft);
  margin: 0 0 18px;
  line-height: 1.75;
}
.simple-lead strong { color: var(--c-accent); font-weight: 700; }
.simple-sub {
  font-size: 13px;
  color: var(--c-ink-mute);
  margin: 14px 0 0;
  line-height: 1.6;
}
.simple-sub strong { color: var(--c-ink-soft); }
.inline-link {
  color: var(--c-violet-glow);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.inline-link:hover { color: var(--c-accent); }

/* ============ Mail grid ============ */
.mail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 8px 0 4px;
}
@media (max-width: 540px) {
  .mail-grid { grid-template-columns: 1fr; }
}
.mail-card {
  background: rgba(11, 7, 22, 0.7);
  border: 1px solid var(--c-line-soft);
  border-radius: 12px;
  padding: 14px 14px 12px;
  position: relative;
}
.mail-card__num {
  position: absolute;
  top: -10px; left: 12px;
  font-family: var(--font-title);
  font-size: 16px;
  color: var(--c-accent);
  background: var(--c-bg-deep);
  padding: 0 6px;
  border-radius: 4px;
}
.mail-card__title {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--c-ink);
  margin: 4px 0 2px;
}
.mail-card__from {
  font-size: 11px;
  color: var(--c-ink-mute);
  margin-bottom: 8px;
}
.mail-card__text {
  font-size: 13px;
  color: var(--c-ink-soft);
  margin: 0;
}
.mail-card strong { color: var(--c-accent); }

/* ============ Coming soon (Android) ============ */
.card--coming { opacity: 0.92; }
.coming-soon {
  text-align: center;
  padding: 24px 12px 8px;
}
.coming-soon__sigil {
  font-size: 36px;
  color: var(--c-accent);
  opacity: 0.6;
  margin-bottom: 8px;
  text-shadow: 0 0 20px rgba(245, 196, 90, 0.4);
}
.coming-soon__title {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 0 0 12px;
  color: var(--c-ink);
}
.coming-soon__text {
  color: var(--c-ink-soft);
  font-size: 14.5px;
  margin: 0 0 14px;
}
.coming-soon__sub {
  color: var(--c-ink-mute);
  font-size: 13px;
  margin: 0;
}

/* ============ Feedback ============ */
.feedback-lead {
  font-size: 14.5px;
  color: var(--c-ink-soft);
  margin: 0 0 18px;
}
.feedback-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.feedback-grid--single {
  grid-template-columns: 1fr;
}
@media (max-width: 540px) {
  .feedback-grid { grid-template-columns: 1fr; }
}
.feedback-card strong { color: var(--c-accent); }
.feedback-aside {
  margin: 14px 0 0;
  padding: 10px 14px;
  background: rgba(245, 196, 90, 0.06);
  border-left: 3px solid var(--c-accent);
  border-radius: 0 8px 8px 0;
  font-size: 13px;
  color: var(--c-ink-soft);
}
.feedback-aside strong { color: var(--c-accent); font-weight: 700; }
.feedback-card {
  background: rgba(11, 7, 22, 0.7);
  border: 1px solid var(--c-line-soft);
  border-radius: 12px;
  padding: 14px 16px;
}
.feedback-card__head {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--c-accent);
  margin-bottom: 6px;
}
.feedback-card__value {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 14px;
  color: var(--c-ink);
  display: block;
  margin-bottom: 6px;
  word-break: break-all;
}
.feedback-card__note {
  font-size: 12px;
  color: var(--c-ink-mute);
  margin: 0;
}

/* ============ FAQ ============ */
.faq {
  border-top: 1px dashed var(--c-line-soft);
  padding: 12px 0;
}
.faq:first-of-type { border-top: none; padding-top: 0; }
.faq summary {
  font-family: var(--font-display);
  font-size: 14.5px;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-left: 22px;
  color: var(--c-ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "▸";
  position: absolute; left: 0; top: 0;
  color: var(--c-accent);
  transition: transform 0.15s ease;
}
.faq[open] summary::before { transform: rotate(90deg); }
.faq p {
  margin: 10px 0 4px 22px;
  font-size: 13.5px;
  color: var(--c-ink-soft);
}

/* ============ Survey CTA ============ */
.card--survey {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(245, 196, 90, 0.18) 0%, transparent 60%),
    linear-gradient(180deg, rgba(40, 28, 80, 0.92), rgba(20, 14, 48, 0.92));
  border-color: rgba(245, 196, 90, 0.6);
  text-align: center;
  overflow: hidden;
  padding: 36px 26px 32px;
}
.card--survey::before,
.card--survey::after {
  border-color: var(--c-accent);
  width: 22px; height: 22px;
  opacity: 0.9;
}
.survey-glow {
  position: absolute;
  inset: -40px;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(245, 196, 90, 0.35), transparent 55%),
    radial-gradient(ellipse at 80% 100%, rgba(169, 136, 255, 0.25), transparent 55%);
  pointer-events: none;
  z-index: 0;
  animation: surveyGlow 6s ease-in-out infinite alternate;
}
@keyframes surveyGlow {
  from { opacity: 0.7; }
  to { opacity: 1; }
}
.survey-inner {
  position: relative;
  z-index: 1;
}
.survey-eyebrow {
  display: inline-block;
  font-family: var(--font-title);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--c-accent);
  padding: 4px 12px;
  border: 1px solid var(--c-accent);
  border-radius: 999px;
  margin-bottom: 14px;
  text-shadow: 0 0 12px rgba(245, 196, 90, 0.5);
}
.survey-title {
  font-family: var(--font-display);
  font-size: clamp(20px, 4.6vw, 26px);
  margin: 0 0 14px;
  background: linear-gradient(180deg, #fff3cd 0%, #f5c45a 60%, #c79534 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 2px 18px rgba(245, 196, 90, 0.25);
  line-height: 1.4;
}
.survey-text {
  font-size: 14.5px;
  color: var(--c-ink-soft);
  margin: 0 auto 22px;
  max-width: 520px;
}
.survey-reward {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  max-width: 520px;
  margin: 0 auto 22px;
  padding: 12px 18px;
  background:
    linear-gradient(180deg, rgba(245, 196, 90, 0.18), rgba(245, 196, 90, 0.08));
  border: 1px solid rgba(245, 196, 90, 0.5);
  border-radius: 12px;
  text-align: left;
  box-shadow: 0 0 24px rgba(245, 196, 90, 0.15) inset;
}
.survey-reward__badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  background: linear-gradient(180deg, #f5c45a, #c79534);
  color: #2a1a05;
  font-family: var(--font-title);
  font-size: 11px;
  border-radius: 6px;
  letter-spacing: 0.1em;
  box-shadow: 0 0 12px rgba(245, 196, 90, 0.5);
}
.survey-reward__text {
  margin: 0;
  font-size: 14px;
  color: var(--c-ink-soft);
  line-height: 1.55;
}
.survey-reward__text strong {
  color: var(--c-accent);
  font-weight: 700;
}

.survey-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  border-radius: 14px;
  background: linear-gradient(180deg, #ffd86b 0%, #f5c45a 50%, #c79534 100%);
  color: #2a1a05;
  font-family: var(--font-display);
  font-size: 16px;
  text-decoration: none;
  box-shadow:
    0 6px 0 #8a5e1a,
    0 12px 30px rgba(245, 196, 90, 0.4),
    0 0 0 1px rgba(255, 243, 205, 0.6) inset;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.survey-button:hover { transform: translateY(-2px); }
.survey-button:active {
  transform: translateY(4px);
  box-shadow:
    0 2px 0 #8a5e1a,
    0 4px 12px rgba(245, 196, 90, 0.3),
    0 0 0 1px rgba(255, 243, 205, 0.6) inset;
}
.survey-button__icon {
  display: inline-flex;
  width: 24px; height: 24px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(42, 26, 5, 0.18);
  font-size: 12px;
}
.survey-button__arrow { font-size: 18px; }
.survey-note {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--c-ink-mute);
  letter-spacing: 0.06em;
}

/* ============ Footer ============ */
.footer {
  text-align: center;
  margin-top: 40px;
  padding: 24px 0 0;
  border-top: 1px solid var(--c-line-soft);
}
.footer-thanks {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--c-ink);
  margin: 0 0 12px;
}
.footer-copy {
  font-size: 11px;
  color: var(--c-ink-mute);
  letter-spacing: 0.1em;
  margin: 0;
}

/* ============ Alta decoration ============ */
.alta-decor {
  position: fixed;
  right: -90px;
  bottom: -40px;
  width: 360px;
  height: 360px;
  z-index: -1;
  opacity: 0.18;
  pointer-events: none;
  filter: drop-shadow(0 0 40px rgba(169, 136, 255, 0.5));
  mask-image: linear-gradient(180deg, transparent 0%, #000 25%, #000 75%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 25%, #000 75%, transparent 100%);
}
.alta-decor img {
  width: 100%; height: 100%;
  object-fit: contain;
  object-position: center;
}
@media (max-width: 720px) {
  .alta-decor { width: 220px; height: 220px; right: -60px; bottom: -20px; opacity: 0.12; }
}