/*
Theme Name: Perspectivum
Theme URI: https://perspectivum.example
Author: Perspectivum
Description: Custom theme for Perspectivum, a clinical trial animation brief journal. Includes editable Briefs and Team Member post types.
Version: 1.0.0
Requires PHP: 7.4
Text Domain: perspectivum
*/

@import url('https://fonts.googleapis.com/css2?family=Libre+Baskerville:ital,wght@0,400;0,700;1,400&family=Source+Sans+3:wght@300;400;500;600&display=swap');

:root {
  --font-serif: 'Libre Baskerville', Georgia, serif;
  --font-sans: 'Source Sans 3', system-ui, sans-serif;
  --teal: #1a9090;
  --teal-bg: #f0fafa;
  --teal-border: #c2e6e6;
  --navy: #1a1a2e;
  --body-gray: #4a4a5e;
  --muted-gray: #8a8a9e;
  --border-gray: #d8d8e0;
  --row-border: #e0e0ea;
  --faint-border: #e8e8f0;
}

* {
  box-sizing: border-box;
}

html {
  font-family: var(--font-sans);
  background: #ffffff;
  color: var(--navy);
}

body {
  margin: 0;
}

::-webkit-scrollbar {
  width: 4px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #d0d0d8;
  border-radius: 2px;
}

img {
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Layout */
.pv-wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 56px 32px 80px;
}

.pv-topbar {
  background: var(--teal);
  height: 4px;
  width: 100%;
}

/* Nav */
.pv-nav {
  background: #ffffff;
  border-bottom: 1px solid var(--border-gray);
  position: sticky;
  top: 0;
  z-index: 50;
}

.pv-nav-inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 32px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pv-logo img {
  height: 48px;
  width: auto;
  object-fit: contain;
  cursor: pointer;
}

.pv-nav-links {
  display: flex;
  gap: 2px;
  align-items: center;
}

.pv-nav-links a {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--body-gray);
  padding: 6px 14px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s ease;
  text-transform: capitalize;
  display: inline-block;
}

.pv-nav-links a:hover {
  color: var(--navy);
}

.pv-nav-links a.active {
  font-weight: 600;
  color: var(--teal);
  border-bottom-color: var(--teal);
}

/* Page header */
.pv-page-header {
  margin-bottom: 36px;
  border-bottom: 2px solid var(--navy);
  padding-bottom: 28px;
}

.pv-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.pv-page-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--navy);
  margin: 0 0 14px;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.pv-page-header p {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--body-gray);
  margin: 0;
  max-width: 560px;
  line-height: 1.65;
}

/* Controls */
.pv-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}

.pv-search {
  max-width: 380px;
  background: #f9f9fc;
  border: 1px solid var(--border-gray);
  border-radius: 2px;
  padding: 8px 14px;
  font-family: var(--font-sans);
  font-size: 0.84rem;
  color: var(--navy);
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
}

.pv-search:focus {
  border-color: var(--teal);
  background: #ffffff;
}

.pv-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.pv-pill {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 4px 14px;
  border-radius: 2px;
  border: 1px solid var(--border-gray);
  background: transparent;
  color: #6b6b7e;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.pv-pill:hover {
  border-color: #aaaaaa;
  color: var(--navy);
}

.pv-pill.active {
  border-color: var(--teal);
  background: var(--teal);
  color: #ffffff;
}

.pv-count {
  font-family: var(--font-sans);
  font-size: 0.74rem;
  color: #aaaabc;
  margin-bottom: 4px;
}

/* Article row */
.pv-brief-row {
  border-top: 1px solid var(--row-border);
  padding-top: 22px;
  padding-bottom: 22px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: start;
}

.pv-brief-row[hidden] {
  display: none;
}

.pv-brief-meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 9px;
  flex-wrap: wrap;
}

.pv-category {
  font-family: var(--font-sans);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  color: var(--teal);
  text-transform: uppercase;
}

.pv-phase-tag {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  padding: 2px 7px;
  border-radius: 2px;
  border: 1px solid var(--teal-border);
  background: var(--teal-bg);
  color: var(--teal);
  text-transform: uppercase;
}

.pv-phase-tag.is-preclinical {
  border-color: #d0d0dc;
  background: #f4f4f8;
  color: #8a8a9e;
}

.pv-featured-tag {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #ffffff;
  background: var(--teal);
  padding: 2px 7px;
  border-radius: 2px;
  text-transform: uppercase;
}

.pv-brief-row h2 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin: 0 0 9px;
  line-height: 1.35;
  transition: color 0.15s ease;
}

.pv-brief-row a.pv-title-link:hover h2 {
  color: var(--teal);
}

.pv-brief-row p.pv-description {
  font-family: var(--font-sans);
  font-size: 0.84rem;
  color: var(--body-gray);
  line-height: 1.65;
  margin: 0 0 13px;
}

.pv-citation {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  color: var(--muted-gray);
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: baseline;
}

.pv-citation .pv-journal {
  font-style: italic;
}

.pv-citation .pv-vol {
  font-style: normal;
  color: #5a5a6e;
}

.pv-citation .pv-sep {
  color: #c8c8d8;
}

.pv-citation .pv-doi,
.pv-citation .pv-trial {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-style: normal;
}

.pv-citation .pv-doi {
  color: var(--teal);
}

.pv-citation .pv-trial {
  color: var(--muted-gray);
}

.pv-duration {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 500;
  color: #aaaabc;
  white-space: nowrap;
  padding-top: 2px;
}

.pv-empty {
  padding: 80px 0;
  text-align: center;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1rem;
  color: #aaaabc;
}

.pv-empty[hidden] {
  display: none;
}

/* About page */
.pv-about-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 64px;
  margin-bottom: 64px;
  align-items: start;
}

.pv-about-grid p.pv-lede {
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.82;
  color: var(--navy);
  margin: 0 0 20px;
}

.pv-about-grid p.pv-body {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--body-gray);
  margin: 0 0 20px;
}

.pv-stats {
  border-left: 2px solid var(--navy);
  padding-left: 28px;
}

.pv-stat {
  padding-top: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--faint-border);
}

.pv-stat:first-child {
  padding-top: 0;
}

.pv-stat:last-child {
  border-bottom: none;
}

.pv-stat-value {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 4px;
}

.pv-stat-label {
  font-family: var(--font-sans);
  font-size: 0.74rem;
  color: var(--muted-gray);
}

.pv-team h2.pv-section-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy);
  margin: 0;
  border-top: 2px solid var(--navy);
  padding-top: 20px;
  padding-bottom: 20px;
}

.pv-team-member {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  padding-top: 18px;
  padding-bottom: 18px;
  border-top: 1px solid var(--faint-border);
}

.pv-team-name {
  font-family: var(--font-serif);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.pv-team-affiliation {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--muted-gray);
  line-height: 1.45;
}

.pv-team-role {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--body-gray);
  line-height: 1.55;
  padding-top: 2px;
}

.pv-accuracy-note {
  margin-top: 48px;
  background: var(--teal-bg);
  border: 1px solid var(--teal-border);
  border-left: 3px solid var(--teal);
  padding: 20px 24px;
}

.pv-accuracy-note .pv-eyebrow {
  margin-bottom: 8px;
}

.pv-accuracy-note p {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--body-gray);
  line-height: 1.7;
  margin: 0;
}

/* Single brief */
.pv-single-brief .pv-back-link {
  display: inline-block;
  margin-bottom: 24px;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--teal);
}

.pv-single-brief .pv-back-link:hover {
  text-decoration: underline;
}

/* Footer */
.pv-footer {
  background: var(--navy);
  border-top: 2px solid var(--navy);
  padding: 24px 32px;
}

.pv-footer-inner {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.pv-footer-inner img {
  height: 34px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.5;
}

.pv-footer-text {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: #5a5a6e;
}

/* 404 */
.pv-404 {
  text-align: center;
  padding: 100px 32px;
  font-family: var(--font-sans);
  color: var(--body-gray);
}

@media (max-width: 640px) {
  .pv-about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .pv-team-member {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .pv-nav-inner {
    padding: 0 16px;
  }
  .pv-wrap {
    padding: 40px 16px 60px;
  }
}