/* ============================================================================
 * SPM APA — Shared Base Styles (spm-base.css)
 * ============================================================================
 * Shared CSS for all standalone GitHub Pages apps in the APA project.
 * Import via: <link rel="stylesheet" href="https://southportlandmetroapa.github.io/shared/spm-base.css">
 *
 * Provides: brand colors, reset, typography, header, card, modal, button.
 * Apps override with their own <style> block after this import.
 * ============================================================================ */

/* -- Brand Colors & Design Tokens ----------------------------------------- */
:root {
  --spm-primary: #ea002a;
  --spm-accent: #0031a1;
  --bg: #f5f5f5;
  --card: #ffffff;
  --border: #e1e1e1;
  --text: #1f1f1f;
  --muted: #666;
}

/* -- Reset & Base Typography ---------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

/* -- Header (gradient banner) --------------------------------------------- */
.spm-header {
  border-radius: 22px;
  padding: 22px 20px 20px;
  color: #fff;
  background: linear-gradient(135deg, var(--spm-primary), var(--spm-accent));
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  text-align: center;
  margin-bottom: 18px;
}

.spm-header h1 {
  margin: 0;
  font-size: clamp(1.25rem, 1rem + 1.5vw, 1.75rem);
  font-weight: 900;
  letter-spacing: -0.02em;
}

.spm-header .spm-subtitle {
  margin: 4px 0 0;
  font-size: clamp(1rem, 0.75rem + 1vw, 1.35rem);
  font-weight: 500;
  font-style: italic;
  opacity: 0.92;
}

/* -- Card ----------------------------------------------------------------- */
.spm-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 20px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
  margin-bottom: 16px;
}

/* -- Modal Overlay -------------------------------------------------------- */
.spm-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.68);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 20px;
}

.spm-modal.active { display: flex; }

.spm-modal-panel {
  width: 100%;
  max-width: 520px;
  background: #fff;
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  text-align: center;
  max-height: 90svh;
  overflow-y: auto;
}

/* -- Buttons -------------------------------------------------------------- */
.spm-btn {
  display: inline-block;
  border: none;
  border-radius: 999px;
  padding: 12px 24px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  min-height: 44px;
  transition: filter 0.15s, transform 0.15s;
}

.spm-btn:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.spm-btn:active {
  transform: translateY(0);
}

.spm-btn-primary {
  background: linear-gradient(135deg, var(--spm-primary), var(--spm-accent));
  color: #fff;
}

.spm-btn-secondary {
  background: #fff;
  color: var(--text);
  border: 2px solid var(--border);
}

.spm-btn-danger {
  background: #fff;
  color: var(--spm-primary);
  border: 2px solid var(--spm-primary);
}

/* -- Status Badge --------------------------------------------------------- */
.spm-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* -- Page Container ------------------------------------------------------- */
.spm-page {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 12px;
}

@media (min-width: 768px) {
  .spm-page { padding: 16px 20px; }
}

@media (min-width: 1200px) {
  .spm-page { padding: 20px 30px; }
}

/* -- Footer --------------------------------------------------------------- */
.spm-footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  padding: 24px 0 16px;
}