/*
Theme Name: Medical Custom Theme
Theme URI: https://example.com
Author: Senior WP Developer
Author URI: https://example.com
Description: Tema nativo de WordPress responsive para portal de salud, con topbar, header interactivo, off-canvas menu, hero slider y layout de 2 columnas.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: medical-theme
*/

/* =========================================================
   1. VARIABLES GLOBALES
   ========================================================= */
:root {
  --color-primary: #1d3557;
  --color-primary-dark: #14253d;
  --color-white: #ffffff;
  --color-light-bg: #f5f7fa;
  --color-text: #22292f;
  --color-border: #e1e5ea;
  --color-accent: #4fa3d1;
  --font-main: 'Exo 2', sans-serif;
  --header-height: 84px;
  --topbar-height: 38px;
  --transition-fast: 0.25s ease;
  --max-width: 1200px;
}

/* =========================================================
   2. RESET / BASE
   ========================================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-light-bg);
  line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.screen-reader-text {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
}

/* =========================================================
   3. TOPBAR
   ========================================================= */
.site-topbar {
  background: var(--color-primary-dark);
  color: var(--color-white);
  height: var(--topbar-height);
}

.site-topbar .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 13px;
}

.site-topbar__message {
  margin: 0;
}

.site-topbar__social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

.site-topbar__social:hover {
  background: var(--color-accent);
}

.site-topbar__social svg {
  width: 14px;
  height: 14px;
  fill: var(--color-white);
}

/* =========================================================
   4. HEADER
   ========================================================= */
.site-header {
  background: var(--color-primary);
  color: var(--color-white);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 24px;
}

.site-header__logo {
  flex: 0 0 auto;
}

.site-header__logo a {
  display: inline-block;
}

.site-header__logo img {
  max-height: 56px;
  width: auto;
}

.site-header__logo .site-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
}

/* Main menu (desktop) */
.main-navigation {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
}

.main-navigation ul {
  display: flex;
  gap: 32px;
}

.main-navigation a {
  font-weight: 700;
  font-size: 15px;
  color: var(--color-white);
  padding: 8px 2px;
  position: relative;
}

.main-navigation a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-fast);
}

.main-navigation a:hover::after,
.main-navigation .current-menu-item a::after {
  width: 100%;
}

.main-navigation .sub-menu {
  display: none;
}

/* Header right: search + hamburger */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 0 0 auto;
}

.search-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-white);
  padding: 6px;
  display: inline-flex;
}

.search-toggle svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.header-search {
  position: absolute;
  top: 100%;
  right: 0;
  left: 0;
  background: var(--color-primary-dark);
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-fast);
  z-index: 50;
}

.header-search.is-open {
  max-height: 90px;
}

.header-search form {
  display: flex;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 20px;
  gap: 10px;
}

.header-search input[type="search"] {
  flex: 1 1 auto;
  padding: 10px 14px;
  border: none;
  border-radius: 4px;
  font-family: var(--font-main);
  font-size: 15px;
}

.header-search button {
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  padding: 10px 18px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 700;
}

.site-header {
  position: relative;
}

/* Hamburger button (hidden on desktop) */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 24px;
  position: relative;
  padding: 0;
}

.menu-toggle span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.menu-toggle span:nth-child(1) { top: 0; }
.menu-toggle span:nth-child(2) { top: 10px; }
.menu-toggle span:nth-child(3) { top: 20px; }

.menu-toggle.is-active span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}
.menu-toggle.is-active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.is-active span:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

/* =========================================================
   5. OFF-CANVAS MOBILE MENU
   ========================================================= */
.off-canvas-menu {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 80%;
  max-width: 340px;
  background: var(--color-primary);
  z-index: 1001;
  transform: translateX(-100%);
  transition: transform var(--transition-fast);
  overflow-y: auto;
  box-shadow: 4px 0 12px rgba(0, 0, 0, 0.3);
}

.off-canvas-menu.is-open {
  transform: translateX(0);
}

.off-canvas-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.off-canvas-menu__close {
  background: transparent;
  border: none;
  color: var(--color-white);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

.off-canvas-menu nav ul {
  display: flex;
  flex-direction: column;
}

.off-canvas-menu nav a {
  display: block;
  padding: 16px 20px;
  color: var(--color-white);
  font-weight: 700;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.off-canvas-menu nav a:hover {
  background: rgba(255, 255, 255, 0.08);
}

.off-canvas-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast);
}

.off-canvas-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

body.off-canvas-active {
  overflow: hidden;
}

/* =========================================================
   6. HERO SLIDER
   ========================================================= */
.hero-slider {
  position: relative;
  width: 100%;
  height: 440px;
  overflow: hidden;
  background: var(--color-primary-dark);
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease;
}

.hero-slide.is-active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

.hero-slide__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-slide__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(29, 53, 87, 0.92), rgba(29, 53, 87, 0.25));
}

.hero-slide__content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 40px 20px;
  color: var(--color-white);
}

.hero-slide__category {
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.hero-slide__title {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 10px;
  max-width: 700px;
}

.hero-slide__title a {
  color: var(--color-white);
}

.hero-slide__excerpt {
  max-width: 600px;
  font-size: 15px;
  opacity: 0.9;
}

.hero-slider__dots {
  position: absolute;
  bottom: 16px;
  right: 30px;
  z-index: 3;
  display: flex;
  gap: 8px;
}

.hero-slider__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: none;
  cursor: pointer;
  padding: 0;
}

.hero-slider__dot.is-active {
  background: var(--color-white);
}

/* =========================================================
   7. MAIN CONTENT LAYOUT (2 COLUMNS)
   ========================================================= */
.content-layout {
  max-width: var(--max-width);
  margin: 40px auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 2.3fr 1fr;
  gap: 32px;
  align-items: start;
}

.section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 18px;
  padding-bottom: 8px;
  border-bottom: 3px solid var(--color-primary);
  display: inline-block;
}

/* Posts grid 3x2 */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.post-card {
  background: var(--color-white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(29, 53, 87, 0.08);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 18px rgba(29, 53, 87, 0.15);
}

.post-card__thumb {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: var(--color-light-bg);
}

.post-card__body {
  padding: 16px;
}

.post-card__category {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 6px;
  display: block;
}

.post-card__title {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--color-primary);
}

.post-card__excerpt {
  font-size: 13px;
  color: #556070;
}

/* =========================================================
   8. SIDEBAR
   ========================================================= */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.sidebar-block {
  background: var(--color-white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(29, 53, 87, 0.08);
}

.sidebar-block__label {
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 10px 14px;
}

.sidebar-block__thumb {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.sidebar-block__body {
  padding: 14px;
}

.sidebar-block__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 6px;
}

.sidebar-block__excerpt {
  font-size: 13px;
  color: #556070;
}

.sidebar-block__empty {
  padding: 16px;
  font-size: 13px;
  color: #8a93a0;
}

/* =========================================================
   9. FOOTER
   ========================================================= */
.site-footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 28px 0;
  margin-top: 40px;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-footer__copy {
  font-size: 13px;
  opacity: 0.85;
  margin: 0;
}

.site-footer__nav ul {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.site-footer__nav a {
  font-size: 13px;
  color: var(--color-white);
  opacity: 0.85;
}

.site-footer__nav a:hover {
  opacity: 1;
  color: var(--color-accent);
}

/* =========================================================
   10. RESPONSIVE BREAKPOINTS
   ========================================================= */

/* Tablet: <= 992px */
@media (max-width: 992px) {
  .content-layout {
    grid-template-columns: 1fr;
  }

  .posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-slide__title {
    font-size: 24px;
  }
}

/* Mobile / Tablet: <= 768px -> off-canvas menu activates */
@media (max-width: 768px) {
  .main-navigation {
    display: none;
  }

  .menu-toggle {
    display: inline-block;
  }

  .site-header .container {
    height: 68px;
  }

  .hero-slider {
    height: 320px;
  }

  .posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .site-topbar .container {
    font-size: 12px;
  }
}

/* Small mobile: <= 480px */
@media (max-width: 480px) {
  .posts-grid {
    grid-template-columns: 1fr;
  }

  .hero-slide__title {
    font-size: 20px;
  }

  .hero-slider {
    height: 280px;
  }

  .site-footer .container {
    flex-direction: column;
    text-align: center;
  }
}

/* =========================================================
   11. SINGLE ENTRY / ARCHIVES / PAGINATION (index.php)
   ========================================================= */
.single-entry {
  background: var(--color-white);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 2px 8px rgba(29, 53, 87, 0.08);
}

.single-entry__title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 6px 0 10px;
}

.single-entry__meta {
  font-size: 13px;
  color: #8a93a0;
  margin: 0 0 20px;
}

.single-entry__thumb {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 24px;
}

.single-entry__content {
  font-size: 16px;
}

.single-entry__content a {
  color: var(--color-accent);
  text-decoration: underline;
}

.single-entry__content h2,
.single-entry__content h3 {
  color: var(--color-primary);
}

.single-entry__content blockquote {
  border-left: 4px solid var(--color-accent);
  margin: 20px 0;
  padding: 6px 18px;
  color: #556070;
}

.no-results {
  background: var(--color-white);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 2px 8px rgba(29, 53, 87, 0.08);
}

.no-results h2 {
  color: var(--color-primary);
  margin-top: 0;
}

.pagination {
  margin-top: 32px;
}

.pagination .nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.pagination .page-numbers {
  display: inline-block;
  padding: 8px 14px;
  background: var(--color-white);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-weight: 700;
  font-size: 14px;
}

.pagination .page-numbers:hover,
.pagination .page-numbers.current {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.page-links {
  margin-top: 20px;
  font-weight: 700;
  color: var(--color-primary);
}

@media (max-width: 480px) {
  .single-entry {
    padding: 20px;
  }
  .single-entry__title {
    font-size: 22px;
  }
}