/* ============================================================================
   PCP4Me Directory — utilitarian, healthcare-appropriate styling.
   
   Aesthetic: refined minimalism. Field-guide / scholarly journal sensibility.
   Designed for clarity at any age, accessibility-first (Atkinson Hyperlegible
   was designed by the Braille Institute specifically for legibility).
   
   Color palette is muted, warm-neutral with a single forest-green primary —
   evokes Western NC without being heavy-handed about it.
   ============================================================================ */

:root {
  /* — Color tokens — */
  --ink:        #1a1a1a;
  --ink-soft:   #4a4a4a;
  --ink-mute:   #767676;
  --paper:      #faf8f3;
  --paper-warm: #f0ebe0;
  --rule:       #1a1a1a14;
  --rule-heavy: #1a1a1a26;
  --forest:     #2d4a3e;
  --forest-deep:#1f3329;
  --clay:       #a85838;
  --moss:       #6b7c5a;
  --cream:      #ebe5d6;

  /* — Typography — */
  --font-display: "Source Serif 4", "Source Serif Pro", Georgia, serif;
  --font-body:    "Atkinson Hyperlegible", "Helvetica Neue", Arial, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* — Spacing scale — */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.5rem;
  --sp-6: 2rem;
  --sp-7: 3rem;
  --sp-8: 4rem;
  --sp-9: 6rem;

  --max-w: 1180px;
}

/* — Reset & base — */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--forest); text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
a:hover { color: var(--clay); }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.2; margin: 0 0 var(--sp-4); color: var(--ink); }
h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.125rem); letter-spacing: -0.005em; }
h3 { font-size: 1.25rem; }

p { margin: 0 0 var(--sp-4); }

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: var(--sp-6) 0;
}

/* — Layout shells — */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-5);
}

.site-header {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  padding: var(--sp-5) 0;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(6px);
  background-color: rgba(250, 248, 243, 0.9);
}
.site-header__inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-5);
}
.site-header__brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.site-header__brand small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-top: -2px;
}
.site-header__nav {
  display: flex;
  gap: var(--sp-5);
  font-size: 0.875rem;
}
.site-header__nav a { color: var(--ink-soft); text-decoration: none; }
.site-header__nav a:hover { color: var(--forest); }

.site-footer {
  border-top: 1px solid var(--rule);
  margin-top: var(--sp-9);
  padding: var(--sp-6) 0 var(--sp-7);
  font-size: 0.8125rem;
  color: var(--ink-mute);
}
.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-5);
  justify-content: space-between;
}
.site-footer__disclaimer {
  margin-top: var(--sp-4);
  max-width: 60ch;
  font-style: italic;
  font-size: 0.8125rem;
}

/* — Hero — */
.hero {
  padding: var(--sp-7) 0 var(--sp-5);
}
.hero__eyebrow {
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clay);
  font-weight: 700;
  margin-bottom: var(--sp-3);
}
.hero__lede {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 1.5vw, 1.25rem);
  font-style: italic;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: var(--sp-4) 0 0;
  line-height: 1.55;
}

/* — Search panel — */
.search-panel {
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  padding: var(--sp-5);
  margin: var(--sp-6) 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
}
@media (min-width: 720px) {
  .search-panel { grid-template-columns: 2fr 1.5fr 1.5fr auto; align-items: end; }
}

.field { display: flex; flex-direction: column; gap: var(--sp-2); }
.field label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 700;
}
.field input,
.field select {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--rule-heavy);
  background: var(--paper);
  color: var(--ink);
  border-radius: 2px;
  width: 100%;
}
.field input:focus,
.field select:focus {
  outline: 2px solid var(--forest);
  outline-offset: -1px;
}
.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='%231a1a1a'%3E%3Cpath d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 10px;
  padding-right: 2.5rem;
}

.btn {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: var(--sp-3) var(--sp-5);
  background: var(--forest);
  color: var(--paper);
  border: 1px solid var(--forest);
  cursor: pointer;
  border-radius: 2px;
  transition: background-color 120ms ease;
  text-decoration: none;
  display: inline-block;
}
.btn:hover { background: var(--forest-deep); border-color: var(--forest-deep); color: var(--paper); }
.btn--ghost { background: transparent; color: var(--forest); }
.btn--ghost:hover { background: var(--forest); color: var(--paper); }

/* — Result meta line — */
.results-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin: var(--sp-6) 0 var(--sp-4);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--rule);
  flex-wrap: wrap;
  gap: var(--sp-3);
}
.results-meta__count {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--ink);
}
.results-meta__count strong { font-weight: 700; }
.results-meta__updated {
  font-size: 0.8125rem;
  color: var(--ink-mute);
}

/* — Provider grid — */
.provider-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-1);
}
@media (min-width: 720px) {
  .provider-grid { grid-template-columns: 1fr 1fr; gap: 0; }
}
@media (min-width: 1000px) {
  .provider-grid { grid-template-columns: 1fr 1fr 1fr; }
}

.provider-card {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: var(--sp-5);
  margin: -1px 0 0 -1px;     /* overlap borders for clean grid */
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  text-decoration: none;
  color: var(--ink);
  transition: background-color 120ms ease;
  position: relative;
}
.provider-card:hover {
  background: var(--paper-warm);
  color: var(--ink);
  z-index: 1;
}
.provider-card__name {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.2;
  color: var(--ink);
  margin: 0;
}
.provider-card__creds {
  font-size: 0.8125rem;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
  font-weight: 700;
  text-transform: uppercase;
  margin-top: -2px;
}
.provider-card__specialty {
  font-size: 0.9375rem;
  color: var(--forest);
  font-weight: 600;
}
.provider-card__practice {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9375rem;
  color: var(--ink-soft);
  margin: 0;
}
.provider-card__meta {
  display: flex;
  gap: var(--sp-4);
  font-size: 0.8125rem;
  color: var(--ink-mute);
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: var(--sp-3);
  border-top: 1px solid var(--rule);
}
.provider-card__meta span::before {
  content: "";
  display: inline-block;
  width: 4px; height: 4px;
  background: var(--clay);
  border-radius: 50%;
  margin-right: var(--sp-2);
  vertical-align: middle;
}

/* — Pagination — */
.pagination {
  display: flex;
  justify-content: center;
  gap: var(--sp-2);
  margin-top: var(--sp-7);
}
.pagination button {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  background: transparent;
  border: 1px solid var(--rule-heavy);
  padding: var(--sp-2) var(--sp-4);
  cursor: pointer;
  color: var(--ink-soft);
  border-radius: 2px;
}
.pagination button[aria-current="true"] {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.pagination button:disabled {
  opacity: 0.35;
  cursor: default;
}

/* — Provider detail page — */
.detail {
  padding: var(--sp-7) 0;
}
.detail__back {
  font-size: 0.875rem;
  color: var(--ink-mute);
  text-decoration: none;
  display: inline-block;
  margin-bottom: var(--sp-4);
}
.detail__back:hover { color: var(--forest); }
.detail__name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.875rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 var(--sp-2);
}
.detail__creds {
  font-size: 0.875rem;
  color: var(--ink-mute);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--sp-5);
}
.detail__specialty {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.375rem;
  color: var(--forest);
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
  margin-top: var(--sp-6);
}
@media (min-width: 720px) {
  .detail-grid { grid-template-columns: 2fr 1fr; }
}

.detail-section { padding-bottom: var(--sp-5); border-bottom: 1px solid var(--rule); margin-bottom: var(--sp-5); }
.detail-section:last-child { border-bottom: 0; }
.detail-section__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clay);
  margin-bottom: var(--sp-2);
}
.detail-section__value { font-size: 1rem; color: var(--ink); }
.detail-section__value--mono { font-family: var(--font-mono); font-size: 0.875rem; }

.cta-card {
  background: var(--forest);
  color: var(--paper);
  padding: var(--sp-5);
  border-radius: 2px;
}
.cta-card h3 { color: var(--paper); margin-bottom: var(--sp-3); }
.cta-card p { color: rgba(250, 248, 243, 0.85); font-size: 0.9375rem; }
.cta-card .btn { background: var(--paper); color: var(--forest); border-color: var(--paper); margin-top: var(--sp-2); }
.cta-card .btn:hover { background: var(--cream); color: var(--forest); border-color: var(--cream); }

/* — Practice profile — */
.practice-header {
  padding: var(--sp-7) 0 var(--sp-5);
  border-bottom: 1px solid var(--rule);
  margin-bottom: var(--sp-6);
}
.practice-header__location {
  font-size: 0.875rem;
  color: var(--ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  margin-bottom: var(--sp-2);
}
.practice-header__name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

/* — Empty / loading states — */
.state-msg {
  text-align: center;
  padding: var(--sp-8) var(--sp-4);
  color: var(--ink-mute);
  font-style: italic;
}

/* — Skeleton shimmer for loading — */
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
.skeleton {
  background: linear-gradient(90deg, var(--rule) 0%, var(--rule-heavy) 50%, var(--rule) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.4s ease-in-out infinite;
  border-radius: 2px;
  height: 1em;
}