/* HydraSonic site — same design tokens as the app. */

:root {
  --accent: #dc143c;
  --bg: #0d0d10;
  --bg-raised: #17171c;
  --bg-hover: #1f1f26;
  --border: #26262e;
  --text: #ececf1;
  --text-muted: #8b8b96;
  font-family: "Segoe UI", "SF Pro Text", system-ui, -apple-system, sans-serif;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page {
  text-align: center;
  padding: 24px;
  max-width: 560px;
}

.logo {
  width: 96px;
  height: 96px;
  margin: 0 auto 12px;
  background: var(--accent);
  -webkit-mask: url("/logo.svg") no-repeat center / contain;
  mask: url("/logo.svg") no-repeat center / contain;
}

h1 {
  font-size: 34px;
  margin: 0 0 6px;
  letter-spacing: 0.5px;
}

.tagline {
  color: var(--text-muted);
  margin: 0 0 32px;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 14px 34px;
  font-size: 17px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: filter 0.15s;
}

.btn:hover {
  filter: brightness(1.15);
}

.btn:disabled {
  filter: grayscale(0.6);
  cursor: default;
}

.alt-links {
  margin-top: 18px;
  font-size: 13px;
  color: var(--text-muted);
}

.alt-links a {
  color: var(--text-muted);
}

.alt-links a:hover {
  color: var(--text);
}

.foot {
  margin-top: 48px;
  font-size: 12px;
  color: var(--text-muted);
}

.foot a {
  color: var(--text-muted);
}

/* premium page */
.price {
  font-size: 44px;
  font-weight: 700;
  margin: 0 0 4px;
}

.price small {
  font-size: 15px;
  font-weight: 400;
  color: var(--text-muted);
}

.email-input {
  background: var(--bg-hover);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 15px;
  width: 280px;
  outline: none;
  margin-bottom: 14px;
}

.email-input:focus {
  border-color: var(--accent);
}

.key-box {
  background: var(--bg-raised);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 18px 22px;
  font-family: ui-monospace, monospace;
  font-size: 22px;
  letter-spacing: 0.08em;
  user-select: all;
  margin: 20px 0 10px;
  word-break: break-all;
}

.hint {
  color: var(--text-muted);
  font-size: 13px;
}

.error {
  color: var(--accent);
  margin-top: 14px;
}

.hidden {
  display: none;
}

/* main page (wider hero) */
.page-wide {
  max-width: 720px;
}

.logo-big {
  width: 128px;
  height: 128px;
}

.hero-title {
  font-size: 46px;
}

.cta-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-big {
  padding: 16px 40px;
  font-size: 18px;
}

.btn-outline {
  background: transparent;
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--border);
}

.btn-outline:hover {
  box-shadow: inset 0 0 0 1px var(--accent);
  color: var(--accent);
  filter: none;
}

.features {
  display: flex;
  gap: 14px;
  margin-top: 44px;
  text-align: left;
}

.feature {
  flex: 1;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
}

.feature-title {
  display: block;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--accent);
}

.feature-desc {
  font-size: 13px;
  color: var(--text-muted);
}

@media (max-width: 640px) {
  .features {
    flex-direction: column;
  }
}

/* premium amount picker */
.amount-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 8px;
}

.amount-currency {
  font-size: 22px;
  color: var(--text-muted);
}

.amount-input {
  background: var(--bg-hover);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 34px;
  font-weight: 700;
  width: 130px;
  text-align: center;
  outline: none;
}

.amount-input:focus {
  border-color: var(--accent);
}

.foot a {
  color: var(--text-muted);
}

.foot a:hover {
  color: var(--text);
}