/* ProofStamp brandkit v1.1 alignment for the OpenTimestamps / Bitcoin app. */

:root {
  --navy: var(--ps-blue);
  --navy-soft: var(--ps-blue-hover);
  --green: var(--ps-blue);
  --green-dark: var(--ps-blue-hover);
  --green-pale: var(--ps-tint);
  --cream: var(--ps-white);
  --paper: var(--ps-white);
  --ink: var(--ps-graphite);
  --muted: var(--ps-muted);
  --line: var(--ps-border);
  --danger: var(--ps-danger);
  --danger-pale: #FDF1F0;
  --shadow: 0 10px 30px rgba(22, 45, 82, .07);
  font-family: var(--ps-font-sans);
  background: var(--ps-white);
  color: var(--ps-graphite);
}

body,
button,
input,
textarea {
  font-family: var(--ps-font-sans);
}

body {
  background: var(--ps-white);
  color: var(--ps-graphite);
}

code,
pre,
.inline-details code,
.details code {
  font-family: var(--ps-font-mono);
}

.site-header {
  min-height: 78px;
  padding-top: 0;
  padding-bottom: 0;
  border-bottom: 1px solid var(--ps-border);
}

.brand {
  gap: .72rem;
  color: var(--ps-blue);
}

.brand-mark {
  width: 190px;
  height: 22px;
  flex: 0 0 190px;
  background: url('./proofstamp-logo.svg') left center / contain no-repeat;
}

.brand-copy strong {
  display: none;
}

.brand-copy small {
  margin: 0;
  color: var(--ps-muted);
  font-size: .74rem;
  font-weight: 500;
  white-space: nowrap;
}

main {
  padding-bottom: 1.5rem;
}

.hero {
  max-width: 880px;
  margin: 3.2rem auto 1.8rem;
  padding: 0;
  text-align: left;
}

.hero h1 {
  max-width: 760px;
  margin: 0 0 .75rem;
  color: var(--ps-blue);
  font-family: var(--ps-font-sans);
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -.04em;
}

.hero > p {
  max-width: 650px;
  margin: 0;
  color: var(--ps-muted);
  font-size: 1.02rem;
}

.trust-list {
  justify-content: flex-start;
  gap: .45rem .85rem;
  margin-top: 1.15rem;
  color: var(--ps-muted);
  font-size: .82rem;
  font-weight: 500;
}

.trust-list li + li::before {
  content: '·';
  margin-right: .85rem;
  color: var(--ps-border);
}

.tool-shell {
  width: min(880px, calc(100% - 2rem));
  margin-bottom: 4rem;
  border: 1px solid var(--ps-border);
  border-radius: 12px;
  background: var(--ps-white);
  box-shadow: var(--shadow);
}

.tabs {
  border-bottom-color: var(--ps-border);
  background: var(--ps-surface);
}

.tab {
  color: var(--ps-muted);
  font-weight: 600;
}

#mode-create:checked ~ .tabs label[for="mode-create"],
#mode-verify:checked ~ .tabs label[for="mode-verify"] {
  color: var(--ps-blue);
  border-bottom-color: var(--ps-blue);
  background: var(--ps-white);
}

#mode-create:focus-visible ~ .tabs label[for="mode-create"],
#mode-verify:focus-visible ~ .tabs label[for="mode-verify"] {
  outline-color: rgba(22, 45, 82, .24);
}

.panel,
.result-stage {
  padding: 2rem;
}

.stage + .stage,
.result-stage {
  border-color: var(--ps-border);
}

.stage-kicker {
  color: var(--ps-blue);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .11em;
}

h2,
.verify-file-field > span,
.verification-check strong {
  color: var(--ps-blue);
}

h2 {
  font-family: var(--ps-font-sans);
  font-weight: 600;
}

.stage-subcopy,
.verify-intro p,
.explanation p,
.success-intro,
.field small,
.privacy-note,
.warning-note {
  color: var(--ps-muted);
}

input[type=file],
textarea {
  border-color: var(--ps-border);
  border-radius: 8px;
  background: var(--ps-white);
  color: var(--ps-graphite);
}

input[type=file]::file-selector-button {
  border-radius: 6px;
  background: var(--ps-tint);
  color: var(--ps-blue);
  font-weight: 600;
}

input[type=file]:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(22, 45, 82, .16);
  border-color: var(--ps-blue);
}

button,
.primary,
.secondary,
.text-button {
  border-radius: 8px;
  font-weight: 600;
}

.primary {
  background: var(--ps-blue);
  color: var(--ps-white);
  box-shadow: none;
}

.primary:hover {
  background: var(--ps-blue-hover);
  transform: none;
}

.secondary {
  border-color: var(--ps-border);
  background: var(--ps-white);
  color: var(--ps-blue);
}

.secondary:hover {
  border-color: var(--ps-blue);
}

.text-button,
.text-link,
.inline-details summary,
.advanced-details > summary,
.nested-details > summary,
.independent-details > summary {
  color: var(--ps-blue);
}

.hash-status {
  border: 1px solid var(--ps-border);
  border-radius: 8px;
  background: var(--ps-tint);
  color: var(--ps-blue);
}

.inline-details code {
  border-top-color: rgba(22, 45, 82, .16);
}

.ok {
  color: var(--ps-success);
}

.badge {
  border-color: var(--ps-border);
  background: var(--ps-surface);
  color: var(--ps-muted);
  font-weight: 600;
}

#timestamp-badge,
#verification-badge {
  border-color: rgba(138, 90, 0, .26);
  background: #FFF8E8;
  color: var(--ps-warning);
}

.advanced-details,
.verify-file-field,
.share-note,
.verification-check {
  border-color: var(--ps-border);
  border-radius: 8px;
}

.advanced-details,
.verify-file-field,
.result-stage {
  background: var(--ps-surface);
}

.share-note,
.verification-check {
  background: var(--ps-white);
}

.success-mark {
  width: 42px;
  height: 42px;
  margin-bottom: .85rem;
  border-radius: 0;
  background: url('./proof-point-card-marker.svg') center / contain no-repeat;
  color: transparent;
  font-size: 0;
}

.warning-note strong,
.bitcoin-pending-guidance {
  color: var(--ps-warning);
}

.verification-check-icon.verified {
  background: #EEF6F1;
  color: var(--ps-success);
}

.verification-check-icon.pending {
  background: #FFF8E8;
  color: var(--ps-warning);
}

.verification-check-icon.neutral {
  background: var(--ps-surface);
  color: var(--ps-muted);
}

.verify-panel.mismatch-active #saved-status {
  border-color: rgba(166, 58, 50, .28);
  background: #FDF1F0;
  color: var(--ps-danger);
}

.explanation {
  max-width: 880px;
}

.explanation-number {
  color: var(--ps-blue);
}

.limitation {
  border-radius: 8px;
  background: var(--ps-blue);
}

.site-footer {
  border-top: 1px solid var(--ps-border);
  color: var(--ps-muted);
}

.site-footer a {
  color: var(--ps-blue);
}

.site-footer a:hover {
  color: var(--ps-blue-hover);
}

@media (max-width: 920px) {
  .hero {
    width: min(880px, calc(100% - 2rem));
  }
}

@media (max-width: 700px) {
  .site-header {
    min-height: 68px;
    padding: 0 1rem;
  }

  .brand-mark {
    width: 156px;
    height: 19px;
    flex-basis: 156px;
  }

  .brand-copy small {
    font-size: .68rem;
  }

  .hero {
    margin-top: 2.25rem;
  }

  .hero h1 {
    font-size: clamp(2.25rem, 11vw, 3.1rem);
  }

  .tool-shell {
    width: calc(100% - 1rem);
    border-radius: 10px;
  }

  .panel,
  .result-stage {
    padding: 1.2rem;
  }

  .trust-list {
    display: grid;
    gap: .35rem;
  }

  .trust-list li + li::before {
    content: none;
  }

  .site-footer {
    align-items: flex-start;
  }
}