/* Slushproof — engineering notebook meets literary magazine.
   Palette: FAFAF7 paper, 1A1A1A ink, 4A4A48 muted,
   8B2C2C concern, 2E5339 strength, E4E3DE rule.
   Typography: Fraunces display, Inter body, JetBrains Mono data.
*/

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,600;0,9..144,700;1,9..144,400;1,9..144,600&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --paper: #FAFAF7;
  --ink: #1A1A1A;
  --muted: #4A4A48;
  --concern: #8B2C2C;
  --strength: #2E5339;
  --rule: #E4E3DE;
  --serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, 'Courier New', monospace;
  --max: 880px;
  --radius: 8px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.sp-wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.5rem 1.75rem 4rem;
}

/* HEADER ------------------------------------------------------------------ */
.sp-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 2.25rem;
}
.sp-head a { text-decoration: none; color: inherit; }
.sp-wordmark {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}
.sp-nav {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--muted);
}
.sp-nav a { margin-left: 1.25rem; color: var(--muted); }
.sp-nav a:hover { color: var(--ink); }

/* TYPE -------------------------------------------------------------------- */
.sp-display {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 3rem;
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
  color: var(--ink);
}
.sp-h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 2rem;
  line-height: 1.1;
  margin: 2.5rem 0 0.75rem;
}
.sp-h2 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.35rem;
  line-height: 1.2;
  margin: 1.75rem 0 0.5rem;
}
.sp-eyebrow {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.6rem;
}
.sp-lede {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.25rem;
  line-height: 1.4;
  color: var(--muted);
  margin: 0 0 1.5rem;
}
p { margin: 0 0 0.9rem; }
.sp-body { font-family: var(--sans); font-size: 1rem; }
.sp-data { font-family: var(--mono); font-size: 0.9rem; }
.sp-muted { color: var(--muted); }
.sp-strength { color: var(--strength); }
.sp-concern { color: var(--concern); }

/* RULES (horizontal lines) ------------------------------------------------ */
hr.sp-rule-thin   { border: 0; border-top: 1px solid var(--rule); margin: 1.5rem 0; }
hr.sp-rule-heavy  { border: 0; border-top: 1px solid var(--ink);  margin: 2rem 0 1.25rem; }

/* PULL-QUOTE — the craft citation treatment ------------------------------ */
.sp-pull {
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  padding: 0.9rem 0 0.8rem;
  margin: 1.5rem 0;
}
.sp-pull-quote {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.4rem;
  line-height: 1.3;
  color: var(--ink);
  margin: 0 0 0.4rem;
}
.sp-pull-attr {
  font-family: var(--sans);
  font-size: 0.82rem;
  color: var(--muted);
}

/* COLUMNS ----------------------------------------------------------------- */
.sp-cols-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
@media (max-width: 700px) {
  .sp-cols-2 { grid-template-columns: 1fr; gap: 1rem; }
}

/* FINDING (accent bar + body) -------------------------------------------- */
.sp-finding {
  border-left: 3px solid var(--rule);
  padding: 0.1rem 0 0.4rem 0.85rem;
  margin-bottom: 1.15rem;
}
.sp-finding.strength { border-left-color: var(--strength); }
.sp-finding.concern  { border-left-color: var(--concern); }
.sp-finding-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.05rem;
  margin: 0 0 0.25rem;
}
.sp-finding-body {
  font-family: var(--serif);
  color: var(--muted);
  margin: 0 0 0.3rem;
}
.sp-finding-meta {
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* TABLE (comparison) ----------------------------------------------------- */
.sp-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
}
.sp-table th, .sp-table td {
  text-align: left;
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
  font-family: var(--sans);
  font-size: 0.95rem;
}
.sp-table th {
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.sp-table tr:last-child td { border-bottom: 1px solid var(--ink); }
.sp-table .feat { font-weight: 700; font-family: var(--sans); }

/* BUTTONS (modern, accessible) ------------------------------------------ */
.sp-btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.2;
  padding: 0.7rem 1.3rem;
  border-radius: var(--radius);
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.05s ease, box-shadow 0.15s ease;
  margin-right: 0.5rem;
}
.sp-btn:hover {
  background: #333;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
.sp-btn:active { transform: translateY(1px); }
.sp-btn:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.sp-btn-ghost {
  background: transparent;
  color: var(--ink);
}
.sp-btn-ghost:hover {
  background: var(--rule);
  box-shadow: none;
}

/* FORMS ------------------------------------------------------------------ */
.sp-form { margin-top: 1.5rem; }
.sp-form label {
  display: block;
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  margin: 1rem 0 0.35rem;
  letter-spacing: 0.01em;
}
.sp-form input[type="text"],
.sp-form input[type="email"],
.sp-form input[type="password"],
.sp-form input[type="url"],
.sp-form input[type="tel"],
.sp-form textarea,
.sp-form select {
  display: block;
  width: 100%;
  padding: 0.65rem 0.8rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  line-height: 1.3;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-sizing: border-box;
  transition: border 0.15s ease, box-shadow 0.15s ease;
}
.sp-form textarea { min-height: 8rem; resize: vertical; }
.sp-form input:focus,
.sp-form textarea:focus,
.sp-form select:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: 0 0 0 3px rgba(26,26,26,0.08);
}
.sp-form .sp-help {
  font-family: var(--sans);
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.3rem;
}
.sp-form .sp-error {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--concern);
  margin-top: 0.5rem;
  display: none;
}
.sp-form .sp-success {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--strength);
  margin-top: 0.5rem;
  display: none;
}
.sp-form button[type="submit"] { margin-top: 1.5rem; }

/* DIVIDER / "or" / alt-auth row ----------------------------------------- */
.sp-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 2rem 0;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.sp-divider::before,
.sp-divider::after {
  content: "";
  flex: 1;
  border-top: 1px solid var(--rule);
}

/* CARD GRID (home, sample list, etc.) ----------------------------------- */
.sp-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.sp-card {
  display: block;
  padding: 1.5rem 1.25rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.05s ease, box-shadow 0.15s ease;
}
.sp-card:hover {
  border-color: var(--ink);
  box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}
.sp-card:active { transform: translateY(1px); }
.sp-card-label {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--ink);
}
.sp-card-sub {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.4rem;
}

/* INLINE LINKS ---------------------------------------------------------- */
.sp-link-row {
  font-family: var(--sans);
  font-size: 0.9rem;
  color: var(--muted);
  margin-top: 1.25rem;
}
.sp-link-row a { color: var(--ink); text-decoration: underline; text-underline-offset: 2px; }

/* EMBED (Termly full-page) ---------------------------------------------- */
.sp-embed { margin-top: 1.5rem; }
.sp-embed iframe { width: 100%; border: 0; }

/* PROSE-CHECK MODAL (landing pages) -------------------------------------- */
.sp-modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(20, 20, 20, 0.55);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 4vh 1rem 1rem;
  z-index: 1000;
}
.sp-modal-backdrop.open { display: flex; }
.sp-modal {
  background: var(--paper);
  border-radius: var(--radius);
  width: 100%;
  max-width: 720px;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
  overflow: hidden;
}
.sp-modal-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 1.1rem 1.5rem 0.8rem;
  border-bottom: 1px solid var(--rule);
}
.sp-modal-head h2 {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0;
  color: var(--ink);
}
.sp-modal-close {
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--muted);
  cursor: pointer;
  line-height: 1;
  padding: 0 0.25rem;
}
.sp-modal-close:hover { color: var(--ink); }
.sp-modal-body {
  padding: 1.25rem 1.5rem;
  overflow-y: auto;
  flex: 1;
}
.sp-modal-body textarea {
  width: 100%;
  min-height: 220px;
  padding: 0.8rem 1rem;
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.55;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: #fff;
  resize: vertical;
}
.sp-modal-body textarea:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: 0 0 0 3px rgba(26,26,26,0.06);
}
.sp-modal-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--sans);
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 0.4rem;
}
.sp-modal-foot {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.sp-modal-foot .sp-btn { margin: 0; }
.sp-modal-progress {
  text-align: center;
  padding: 2.5rem 1rem;
}
.sp-modal-spinner {
  display: inline-block;
  width: 26px;
  height: 26px;
  border: 3px solid var(--rule);
  border-top-color: var(--ink);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 0.75rem;
}
.sp-modal-results h3 {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}
.sp-modal-results .sp-modal-summary {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

/* FOOTER ----------------------------------------------------------------- */
.sp-foot {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.sp-foot a { color: var(--muted); margin-left: 1rem; }
.sp-foot a:hover { color: var(--ink); }