/*
Theme Name: UNUS Blog
Theme URI: https://unus.com.br
Author: UNUS Team
Author URI: https://unus.com.br
Description: Tema oficial para o blog UNUS, focado em imobiliária de alto padrão.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: unus-blog
*/

:root {
  /* ============================================================
     UNUS DESIGN SYSTEM — COLOR TOKENS
     ============================================================ */

  /* PRIMARY SCALE (Brand Cyan) */
  --primary-50:  #E8F8FE;
  --primary-100: #BDEDFC;
  --primary-200: #8AE1FA;
  --primary-300: #57D4F7;
  --primary-400: #2ECAF5;
  --primary-500: #07C2F2;
  --primary-600: #06A3CC;
  --primary-700: #0580A3;
  --primary-800: #045E7A;
  --primary-900: #033C52;

  /* SECONDARY SCALE (Graphite) */
  --secondary-50:  #F4F4F5;
  --secondary-100: #E4E4E6;
  --secondary-200: #C9CACC;
  --secondary-300: #AEAFB3;
  --secondary-400: #939499;
  --secondary-500: #696A6C;
  --secondary-600: #555658;
  --secondary-700: #414244;
  --secondary-800: #2D2E30;
  --secondary-900: #1A1A1C;

  /* NEUTRAL / SURFACES */
  --neutral-50:  #F8F8F6;
  --neutral-100: #F2F1EE;
  --neutral-200: #EAEAE6;
  --neutral-300: #DDDDD8;
  --neutral-400: #C5C5C0;
  --neutral-500: #9E9E99;
  --neutral-600: #787873;
  --neutral-700: #52524E;
  --neutral-800: #2C2C2A;
  --neutral-900: #161615;

  /* SEMANTIC MAPPINGS */
  --background:          var(--neutral-50);
  --foreground:          var(--secondary-500);
  --color-heading:       var(--secondary-900);
  --color-body:          var(--secondary-500);
  --accent:              var(--primary-500);
  --border:              var(--neutral-300);

  /* FONTS */
  --font-sans: 'Inter', sans-serif;
  --font-serif: 'Cormorant Garamond', serif;

  /* SPACING — 8pt Grid */
  --spacing-sm:  16px;
  --spacing-md:  24px;
  --spacing-lg:  32px;
  --spacing-xl:  48px;
  --spacing-2xl: 64px;
}

/* Base Styles */
* { box-sizing: border-box; }

body {
  background-color: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  line-height: 1.5;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-heading);
  font-weight: 400;
  line-height: 1.2;
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2.5rem; letter-spacing: -0.01em; }
h3 { font-size: 1.5rem; }

p {
  margin-bottom: var(--spacing-md);
  font-weight: 300;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  opacity: 0.7;
}

.container-fluid {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 80px;
  display: flex;
  align-items: center;
  transition: all 0.5s ease;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.site-header.transparent {
  background-color: transparent;
  backdrop-filter: none;
  border-bottom-color: transparent;
}

.site-header.transparent .logo-img {
  filter: brightness(0) invert(1);
}

.site-header.transparent .main-navigation a,
.site-header.transparent .favoritos-link {
  color: rgba(255, 255, 255, 0.9);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo-img {
  height: 40px;
  width: auto;
  filter: brightness(0);
}

.main-navigation ul {
  display: flex;
  gap: 40px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-navigation a {
  color: var(--color-heading);
  font-size: 13px;
  text-transform: none;
  letter-spacing: 0.04em;
  font-weight: 400;
}

.favoritos-link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-heading);
  letter-spacing: 0.04em;
}

/* Mobile Menu */
.menu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  color: inherit;
}

.menu-toggle .bar {
  width: 24px;
  height: 1.5px;
  background-color: currentColor;
  transition: all 0.3s ease;
}

.mobile-menu-overlay {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(-10px);
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-navigation ul {
  list-style: none;
  padding: 40px var(--spacing-lg);
  margin: 0;
}

.mobile-navigation li {
  border-bottom: 1px solid var(--neutral-100);
}

.mobile-navigation a {
  display: block;
  padding: 20px 0;
  font-size: 18px;
  color: var(--color-heading);
}

.mobile-menu-footer {
  margin-top: auto;
  padding: 40px var(--spacing-lg);
}

.btn-favoritos-mobile {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  background-color: var(--secondary-900);
  color: #FFFFFF !important;
  padding: 18px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 500;
}

/* Footer */
.site-footer {
  background-color: var(--secondary-900);
  color: #FFFFFF;
  padding-top: 80px;
  padding-bottom: 40px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 64px;
}

.footer-logo.invert { filter: brightness(0) invert(1); height: 40px; margin-bottom: 24px; }

.footer-desc { color: rgba(255, 255, 255, 0.3); font-size: 13px; max-width: 260px; }

.footer-title {
  color: rgba(255, 255, 255, 0.4);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 600;
  margin-bottom: 24px;
}

.footer-nav ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }

.footer-nav a { color: rgba(255, 255, 255, 0.5); font-size: 14px; font-weight: 300; }

.footer-bottom { display: flex; justify-content: space-between; font-size: 12px; color: rgba(255, 255, 255, 0.2); }

.footer-legal { display: flex; gap: 24px; }

/* Blog Content */
.site-main { padding-top: 160px; padding-bottom: 80px; }

.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }

.post-card {
  background: #FFFFFF;
  border: 1px solid var(--neutral-200);
  display: flex;
  flex-direction: column;
}

.post-card-image-link { aspect-ratio: 16/10; overflow: hidden; background: var(--neutral-100); }

.post-thumbnail img { width: 100%; height: 100%; object-fit: cover; }

.post-card-content { padding: 32px; flex-grow: 1; display: flex; flex-direction: column; }

.entry-meta { font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--neutral-500); margin-bottom: 16px; }

.entry-title { font-size: 20px; margin-bottom: 16px; }

.read-more { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--secondary-900); display: inline-flex; align-items: center; gap: 8px; margin-top: auto; }

/* Single Post */
.single-post .container { max-width: 800px; }

.single-post .entry-title { font-size: 48px; margin-top: 16px; text-align: center; }

.single-post .post-thumbnail { margin: 64px 0; }

.entry-content { font-size: 18px; line-height: 1.8; color: var(--secondary-800); font-weight: 300; }

/* Buttons */
.btn-primary {
  display: inline-block;
  background-color: var(--secondary-900);
  color: #FFFFFF !important;
  padding: 16px 40px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

/* Responsive */
@media (max-width: 1024px) {
  .main-navigation, .header-actions { display: none; }
  .menu-toggle { display: flex; }
  .post-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .post-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .site-header { height: 70px; }
  .mobile-menu-overlay { top: 70px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}