/*
Theme Name: Medtown
Theme URI: https://medtown.com.br
Author: Isadora Mamede
Author URI: https://medtown.com.br/about/
Description: Custom theme for Medtown — Medical Research & Data Analysis blog by Isadora Mamede, MD
Version: 2.0.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: medtown
Tags: blog, medical, research, dark-mode
*/

/* ─── DESIGN TOKENS ─────────────────────────────────────────────── */
:root {
  --red:        #E81C2E;
  --red-hover:  #C0111F;
  --blue:       #4B6BDF;
  --green:      #18936B;
  --font-brand: 'Post No Bills Colombo', sans-serif;
  --font-body:  'DM Sans', sans-serif;
  --font-mono:  'Courier New', monospace;
  --radius:     14px;
  --radius-sm:  8px;
}

/* ─── LIGHT MODE ────────────────────────────────────────────────── */
:root,
[data-theme="light"] {
  --bg:       #F9F9F9;
  --bg2:      #F0F0F0;
  --bg-card:  #FFFFFF;
  --text:     #181818;
  --text2:    #5A5A5A;
  --text3:    #9E9E9E;
  --border:   #E4E4E4;
  --nav-bg:   rgba(249,249,249,0.96);
  --shadow:   0 8px 40px rgba(0,0,0,0.12);
  --code-bg:  #F3F3F6;
}

/* ─── DARK MODE ─────────────────────────────────────────────────── */
[data-theme="dark"] {
  --bg:       #0C0C0F;
  --bg2:      #141418;
  --bg-card:  #1B1B1F;
  --text:     #F0F0F0;
  --text2:    #AAAAAA;
  --text3:    #555555;
  --border:   #272730;
  --nav-bg:   rgba(12,12,15,0.96);
  --shadow:   0 8px 40px rgba(0,0,0,0.5);
  --code-bg:  #111115;
}

/* ─── RESET ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  transition: background 0.25s, color 0.25s;
  line-height: 1.6;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: var(--font-body); cursor: pointer; }

/* ─── TYPOGRAPHY ────────────────────────────────────────────────── */
.brand-h { font-family: var(--font-brand); font-weight: 800; letter-spacing: -0.02em; }
.label   { font-size: 11px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; }

/* ─── LAYOUT ────────────────────────────────────────────────────── */
.container  { max-width: 1180px; margin: 0 auto; padding: 0 32px; }
.section    { padding: 72px 0; }
.section-sm { padding: 52px 0; }

/* ─── NAVIGATION ────────────────────────────────────────────────── */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  height: 62px;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 32px; gap: 8px;
}
.site-nav::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--red);
}
.nav-logo {
  display: flex; align-items: center; gap: 9px;
  flex-shrink: 0; text-decoration: none;
}
.nav-logo img { width: 30px; height: 30px; border-radius: 50%; }
.nav-wordmark {
  font-family: var(--font-brand); font-weight: 700;
  font-size: 20px; color: var(--red);
}
.nav-links { display: flex; gap: 2px; margin-left: auto; align-items: center; }
.nav-link {
  font-size: 14px; font-weight: 500; color: var(--text2);
  padding: 6px 11px; border-radius: 6px;
  transition: color 0.15s, background 0.15s; white-space: nowrap;
}
.nav-link:hover, .nav-link.current-menu-item { color: var(--red); background: var(--bg2); }
.nav-ebook {
  background: var(--red); color: white !important;
  padding: 7px 14px; border-radius: 6px;
  font-size: 13px; font-weight: 600;
  transition: background 0.15s; white-space: nowrap; margin-left: 4px;
}
.nav-ebook:hover { background: var(--red-hover); }
.theme-toggle {
  width: 38px; height: 21px; flex-shrink: 0;
  background: var(--bg2); border: 1.5px solid var(--border);
  border-radius: 11px; cursor: pointer; position: relative; margin-left: 8px;
}
.toggle-thumb {
  width: 15px; height: 15px; background: var(--red);
  border-radius: 50%; position: absolute; top: 2px; left: 2px;
  transition: left 0.2s ease;
}
[data-theme="dark"] .toggle-thumb { left: 19px; }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 6px; margin-left: 8px;
  border: none; background: none;
}
.hamburger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; display: block; }
.mobile-menu {
  display: none; position: fixed;
  top: 62px; left: 0; right: 0;
  background: var(--nav-bg); border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px); z-index: 99;
  padding: 12px 0; flex-direction: column;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 12px 24px; font-size: 15px; font-weight: 500; color: var(--text2); }
.mobile-menu a:hover { color: var(--red); }
.mobile-menu .m-ebook { color: var(--red) !important; font-weight: 700; }

/* ─── BUTTONS ───────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600;
  cursor: pointer; border: none;
  transition: all 0.15s; font-family: var(--font-body); text-decoration: none;
}
.btn-primary { background: var(--red); color: white; }
.btn-primary:hover { background: var(--red-hover); color: white; }
.btn-ghost { background: transparent; color: var(--text); border: 1.5px solid var(--border); }
.btn-ghost:hover { border-color: var(--red); color: var(--red); }

/* ─── PILLS ─────────────────────────────────────────────────────── */
.pill {
  display: inline-flex; align-items: center;
  padding: 3px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
}
.pill-publishing { background: rgba(232,28,46,0.12); color: var(--red); }
.pill-data       { background: rgba(75,107,223,0.12); color: var(--blue); }
.pill-career     { background: rgba(24,147,107,0.12); color: var(--green); }

/* ─── CARDS ─────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card); border-radius: var(--radius);
  border: 1px solid var(--border); overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; }
.card-img-placeholder {
  width: 100%; aspect-ratio: 16/9;
  background: repeating-linear-gradient(-45deg,var(--bg2) 0,var(--bg2) 9px,var(--border) 9px,var(--border) 10px);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; color: var(--text3); font-family: monospace;
}
.card-body { padding: 20px; }
.card-meta { display: flex; align-items: center; gap: 8px; margin-top: 12px; font-size: 12px; color: var(--text3); }

/* ─── GRIDS ─────────────────────────────────────────────────────── */
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 26px; }

/* ─── TABS ──────────────────────────────────────────────────────── */
.tabs { display: flex; border-bottom: 1px solid var(--border); margin-bottom: 36px; overflow-x: auto; }
.tab {
  padding: 10px 18px; font-size: 14px; font-weight: 500;
  cursor: pointer; border: none; background: none; color: var(--text2);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: all 0.15s; font-family: var(--font-body);
  white-space: nowrap; text-decoration: none;
}
.tab:hover, .tab.active { color: var(--red); border-bottom-color: var(--red); }

/* ─── HERO ──────────────────────────────────────────────────────── */
.hero {
  border-bottom: 1px solid var(--border);
  background: var(--bg); position: relative; overflow: hidden;
}
.hero-dots {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
  background-size: 28px 28px; opacity: 0.55; pointer-events: none;
}
.hero-glow {
  position: absolute; top: -140px; left: -100px;
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(232,28,46,0.07) 0%, transparent 68%);
  pointer-events: none;
}
.hero-inner { padding: 88px 0; position: relative; z-index: 1; }
.hero-h { font-size: clamp(52px,8vw,104px); line-height: 0.98; margin-bottom: 26px; }

/* ─── TOPIC STRIP ───────────────────────────────────────────────── */
.topic-strip { border-bottom: 1px solid var(--border); background: var(--bg-card); }
.topic-strip-inner {
  padding: 14px 32px; display: flex;
  gap: 10px; align-items: center; flex-wrap: wrap;
}

/* ─── EBOOK BANNER ──────────────────────────────────────────────── */
.ebook-banner {
  border-radius: var(--radius); background: var(--red);
  overflow: hidden; display: grid;
  grid-template-columns: 1fr 220px; min-height: 300px;
}
.ebook-banner-body { padding: 44px 48px; }
.ebook-badge {
  display: inline-flex; align-items: center; gap: 9px;
  background: rgba(255,255,255,0.14); border-radius: 7px;
  padding: 6px 14px; margin-bottom: 22px;
}

/* ─── SECTION HEADER ────────────────────────────────────────────── */
.sec-head {
  display: flex; align-items: baseline;
  justify-content: space-between; margin-bottom: 32px; gap: 16px;
}

/* ─── ARTICLE BODY ──────────────────────────────────────────────── */
.art-body h2 {
  font-family: var(--font-brand); font-weight: 700; font-size: 22px;
  margin: 36px 0 12px; color: var(--text);
}
.art-body h3 { font-size: 16px; font-weight: 600; margin: 24px 0 8px; color: var(--text); }
.art-body p { margin-bottom: 16px; color: var(--text2); line-height: 1.8; font-size: 16px; }
.art-body strong { color: var(--text); font-weight: 600; }
.art-body ul { margin: 0 0 16px 20px; }
.art-body ul li { color: var(--text2); font-size: 15px; line-height: 1.8; margin-bottom: 6px; }
.art-body a { color: var(--red); text-decoration: underline; }
.art-tip {
  background: rgba(232,28,46,0.07); border-left: 3px solid var(--red);
  padding: 14px 18px; border-radius: 0 6px 6px 0; margin: 20px 0;
}
.art-tip p { margin: 0; font-size: 14px; color: var(--text2); line-height: 1.7; }

/* ─── ARTICLE LAYOUT ────────────────────────────────────────────── */
.article-layout { display: grid; grid-template-columns: 1fr 290px; gap: 56px; align-items: start; }
.sidebar-author-card { position: sticky; top: 74px; display: flex; flex-direction: column; gap: 18px; }

/* ─── CHAPTER ROW ───────────────────────────────────────────────── */
.ch-row {
  display: grid; grid-template-columns: 68px 1fr; gap: 18px;
  padding: 24px 0; border-bottom: 1px solid var(--border);
}

/* ─── FOOTER ────────────────────────────────────────────────────── */
.site-footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 52px 32px 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px; padding-bottom: 36px; border-bottom: 1px solid var(--border); }

/* ─── WORDPRESS COMPAT ──────────────────────────────────────────── */
.wp-block-image { margin: 24px 0; }
.wp-block-image img { border-radius: var(--radius-sm); }
.aligncenter { text-align: center; }
.screen-reader-text { position: absolute; left: -9999px; }

/* ─── MAILERLITE OVERRIDES ──────────────────────────────────────── */
.ml-embedded { width: 100%; }

/* ─── RESPONSIVE ────────────────────────────────────────────────── */
@media (max-width: 960px) {
  .grid-3         { grid-template-columns: repeat(2,1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .ebook-banner   { grid-template-columns: 1fr; }
  .footer-grid    { grid-template-columns: 1fr 1fr; }
  .feat-grid      { grid-template-columns: 1fr !important; }
}
@media (max-width: 640px) {
  .grid-3    { grid-template-columns: 1fr; }
  .grid-2    { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
  .site-nav  { padding: 0 16px; }
  .section   { padding: 48px 0; }
  .section-sm{ padding: 36px 0; }
  .hero-h    { font-size: 52px !important; }
  .hamburger { display: flex; }
  .nav-links .nav-link { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .ebook-banner-body { padding: 28px 24px; }
}