/*
Theme Name: Above Baseline
Theme URI: https://abovebaseline.blog
Author: Above Baseline
Description: A clean, modern drug development news blog for CRO professionals. Covers Small Molecule, ADCs, ADA & Immunogenicity, PK/PD, and more.
Version: 1.0
License: GNU General Public License v2 or later
Text Domain: above-baseline
*/

/* ===========================
   CSS VARIABLES
=========================== */
:root {
  --orange: #E8610A;
  --orange-light: #FDF0E8;
  --orange-mid: #F5873A;
  --blue: #1A5FA8;
  --blue-light: #E8F1FB;
  --blue-mid: #3A82D4;
  --white: #FFFFFF;
  --off-white: #F7F8FA;
  --gray-light: #EEEEF0;
  --gray-mid: #9A9BA3;
  --gray-dark: #4A4B52;
  --text-primary: #1A1B1F;
  --text-secondary: #5A5C66;
  --border: #E2E3E8;
}

/* ===========================
   RESET & BASE
=========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  background: var(--off-white);
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.6;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--orange); }

/* ===========================
   ALERT BANNER
=========================== */
.ab-alert-banner {
  background: var(--orange-light);
  border-bottom: 1px solid #F5C09A;
  padding: 9px 24px;
  font-size: 12px;
  color: var(--orange);
  text-align: center;
  font-weight: 500;
}
.ab-alert-banner strong { font-weight: 700; }

/* ===========================
   HEADER
=========================== */
.ab-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.ab-header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.ab-logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
}

.ab-logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.4px;
}

.ab-logo-text span { color: var(--orange); }

.ab-logo-tag {
  font-size: 11px;
  color: var(--gray-mid);
  font-weight: 400;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

/* ===========================
   NAVIGATION
=========================== */
.ab-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}

.ab-nav li a {
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
  display: block;
}

.ab-nav li a:hover,
.ab-nav li.current-menu-item a,
.ab-nav li.current-cat a {
  background: var(--orange-light);
  color: var(--orange);
}

.ab-nav .menu-submit a {
  background: var(--orange);
  color: var(--white) !important;
  margin-left: 8px;
}

.ab-nav .menu-submit a:hover {
  background: #C4510A;
}

/* Hamburger */
.ab-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.ab-hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  display: block;
}

/* ===========================
   HERO
=========================== */
.ab-hero {
  background: var(--blue);
  color: var(--white);
  padding: 36px 24px;
}

.ab-hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

.ab-hero h1 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}

.ab-hero h1 span { color: #7CB9F4; }

.ab-hero p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  max-width: 520px;
}

.ab-hero-date {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  white-space: nowrap;
}

/* Category hero variants */
.ab-hero.hero-sm { background: #1A3F6F; }
.ab-hero.hero-adc { background: #1A3F8C; }
.ab-hero.hero-ada { background: #3D1F6E; }
.ab-hero.hero-pkpd { background: #0F5C3A; }
.ab-hero.hero-picks { background: #8A5A00; }

/* ===========================
   MAIN LAYOUT
=========================== */
.ab-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 24px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 28px;
  align-items: start;
}

.ab-single-col {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 24px;
}

/* ===========================
   SECTION LABEL
=========================== */
.ab-section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--gray-mid);
  margin-bottom: 14px;
}

/* ===========================
   ARTICLE CARDS
=========================== */
.ab-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 14px;
  transition: border-color 0.15s, box-shadow 0.15s;
  display: block;
  color: var(--text-primary);
  text-decoration: none;
}

.ab-card:hover {
  border-color: var(--blue-mid);
  box-shadow: 0 2px 12px rgba(26,95,168,0.08);
  color: var(--text-primary);
}

.ab-card:last-child { margin-bottom: 0; }

/* Featured card */
.ab-card.featured {
  background: var(--blue);
  border: none;
  color: var(--white);
}

.ab-card.featured:hover {
  box-shadow: 0 4px 20px rgba(26,95,168,0.2);
}

.ab-card.featured .ab-card-headline { color: var(--white); font-size: 18px; }
.ab-card.featured .ab-card-summary { color: rgba(255,255,255,0.72); }
.ab-card.featured .ab-card-meta { color: rgba(255,255,255,0.5); }
.ab-card.featured .ab-card-source { color: #7CB9F4; }

.ab-featured-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--orange-mid);
  margin-bottom: 8px;
}

/* Category tags */
.ab-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 10px;
}

.ab-tag-sm    { background: #FDE8D6; color: #A03D0A; }
.ab-tag-adc   { background: #E8F0FD; color: #1A4DA8; }
.ab-tag-ada   { background: #F0EAF8; color: #5C3A8C; }
.ab-tag-pkpd  { background: #E2F4EE; color: #1A6A45; }
.ab-tag-picks { background: #FFF3D6; color: #8A5A00; }
.ab-tag-general { background: var(--gray-light); color: var(--gray-dark); }

.ab-card-headline {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 7px;
  line-height: 1.4;
}

.ab-card-summary {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 12px;
}

.ab-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--gray-mid);
  flex-wrap: wrap;
}

.ab-card-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
}

.ab-card-source { font-weight: 500; color: var(--blue); }
.ab-card.featured .ab-card-source { color: #7CB9F4; }

/* ===========================
   SIDEBAR
=========================== */
.ab-sidebar-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  margin-bottom: 16px;
}

.ab-sidebar-card:last-child { margin-bottom: 0; }

.ab-sidebar-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

/* Digest items */
.ab-digest-item {
  display: flex;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-light);
}
.ab-digest-item:last-child { border-bottom: none; padding-bottom: 0; }

.ab-digest-num {
  font-size: 18px;
  font-weight: 700;
  color: var(--border);
  min-width: 24px;
  line-height: 1.2;
}

.ab-digest-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.ab-digest-text strong { color: var(--text-primary); font-weight: 500; }

/* Topic pills */
.ab-topic-pill {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 20px;
  margin: 4px 4px 0 0;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  text-decoration: none;
}

.ab-topic-pill:hover {
  border-color: var(--orange);
  color: var(--orange);
  background: var(--orange-light);
}

/* Stat rows */
.ab-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-light);
  font-size: 13px;
}
.ab-stat-row:last-child { border-bottom: none; }
.ab-stat-label { color: var(--text-secondary); }
.ab-stat-val { font-weight: 600; color: var(--text-primary); }
.ab-stat-val.up { color: #1A6A45; }
.ab-stat-val.down { color: #A03D0A; }

/* ===========================
   SINGLE POST
=========================== */
.ab-post-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 36px 24px;
}

.ab-post-header-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.ab-post-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.3;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.ab-post-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--gray-mid);
  flex-wrap: wrap;
}

.ab-post-content {
  max-width: 740px;
}

.ab-post-content p { margin-bottom: 1.2rem; color: var(--text-secondary); line-height: 1.75; }
.ab-post-content h2 { font-size: 20px; font-weight: 600; margin: 2rem 0 0.75rem; color: var(--text-primary); }
.ab-post-content h3 { font-size: 17px; font-weight: 600; margin: 1.5rem 0 0.5rem; }
.ab-post-content ul, .ab-post-content ol { margin: 0 0 1rem 1.5rem; color: var(--text-secondary); }
.ab-post-content li { margin-bottom: 0.4rem; }
.ab-post-content a { color: var(--blue); }
.ab-post-content a:hover { color: var(--orange); }
.ab-post-content blockquote {
  border-left: 3px solid var(--orange);
  padding: 12px 20px;
  margin: 1.5rem 0;
  background: var(--orange-light);
  border-radius: 0 8px 8px 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* ===========================
   ABOUT PAGE
=========================== */
.ab-about-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px;
  margin-bottom: 20px;
}

.ab-about-card h2 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.4px;
  margin-bottom: 16px;
}

.ab-about-card h2 span { color: var(--orange); }

.ab-about-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 14px;
  max-width: 680px;
}

.ab-about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.ab-about-tag {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===========================
   CONTACT / FORMS
=========================== */
.ab-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.ab-form-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.ab-form-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.ab-form-card > p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.5;
}

/* WPForms overrides */
.ab-form-card .wpforms-container .wpforms-field input,
.ab-form-card .wpforms-container .wpforms-field textarea,
.ab-form-card .wpforms-container .wpforms-field select {
  border: 1px solid var(--border) !important;
  border-radius: 7px !important;
  font-size: 14px !important;
  padding: 9px 12px !important;
  color: var(--text-primary) !important;
}

.ab-form-card .wpforms-container .wpforms-field input:focus,
.ab-form-card .wpforms-container .wpforms-field textarea:focus {
  border-color: var(--blue-mid) !important;
  outline: none !important;
  box-shadow: 0 0 0 3px rgba(58,130,212,0.1) !important;
}

.ab-form-card .wpforms-submit {
  background: var(--orange) !important;
  border: none !important;
  border-radius: 7px !important;
  padding: 10px 20px !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  cursor: pointer !important;
  color: var(--white) !important;
}

.ab-form-card .wpforms-submit:hover {
  background: #C4510A !important;
}

/* ===========================
   FOOTER
=========================== */
.ab-footer {
  border-top: 1px solid var(--border);
  background: var(--white);
  padding: 24px;
  margin-top: 40px;
}

.ab-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--gray-mid);
  flex-wrap: wrap;
  gap: 12px;
}

.ab-footer-links a {
  color: var(--gray-mid);
  text-decoration: none;
  margin-left: 16px;
  font-size: 12px;
}

.ab-footer-links a:hover { color: var(--orange); }

/* ===========================
   PAGINATION
=========================== */
.ab-pagination {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 28px;
  flex-wrap: wrap;
}

.ab-pagination a,
.ab-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.15s;
}

.ab-pagination a:hover { border-color: var(--orange); color: var(--orange); background: var(--orange-light); }
.ab-pagination .current { background: var(--orange); color: var(--white); border-color: var(--orange); }

/* ===========================
   SEARCH
=========================== */
.ab-search-bar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
}

.ab-search-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.ab-search-inner form {
  display: flex;
  gap: 8px;
  max-width: 500px;
}

.ab-search-inner input[type="search"] {
  flex: 1;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 14px;
  outline: none;
}

.ab-search-inner input[type="search"]:focus { border-color: var(--blue-mid); }

.ab-search-inner button {
  padding: 8px 16px;
  background: var(--blue);
  color: var(--white);
  border: none;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 900px) {
  .ab-main { grid-template-columns: 1fr; }
  .ab-contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .ab-nav { display: none; }
  .ab-hamburger { display: flex; }
  .ab-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    right: 16px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    z-index: 200;
    min-width: 200px;
  }
  .ab-hero h1 { font-size: 20px; }
  .ab-hero-date { display: none; }
  .ab-post-title { font-size: 22px; }
  .ab-about-card { padding: 20px; }
}