/*
Theme Name: ViseCrosetate
Theme URI: https://visecrosetate.ro
Author: Your Team
Author URI: https://visecrosetate.ro
Description: Hybrid presentation + ecommerce theme, optimized for Lighthouse. Production-ready with security best practices.
Version: 0.0.2
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: visecrosetate
Domain Path: /languages
Requires at least: 5.9
Requires PHP: 7.4
*/

/* ============================================
   VARIABLES CSS (Design System)
   ============================================ */

:root {
  /* Spacing Scale (8px base) */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Colors */
  --color-primary: #2563eb;
  --color-secondary: #f59e0b;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f9fafb;
  --color-border: #e5e7eb;
  --color-error: #dc2626;
  --color-success: #10b981;

  /* Typography */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-loose: 1.75;

  /* Breakpoints (mobile-first) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;

  /* Layout */
  --container-width: 1200px;
  --container-padding: 1rem;

  /* Typography sizes (scaling) */
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
}

/* Dark mode support (opțional) */
@media (prefers-color-scheme: dark) {
  :root {
    --color-text: #f3f4f6;
    --color-text-light: #d1d5db;
    --color-bg: #111827;
    --color-bg-alt: #1f2937;
    --color-border: #374151;
  }
}

/* ============================================
   RESET & NORMALIZATION
   ============================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: var(--line-height-normal);
  font-feature-settings: "kern" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

h1 {
  font-size: var(--text-2xl);
}

h2 {
  font-size: var(--text-xl);
}

h3 {
  font-size: var(--text-lg);
}

h4, h5, h6 {
  font-size: var(--text-base);
}

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

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

a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

button,
input,
select,
textarea {
  font-family: inherit;
  color: inherit;
}

/* ============================================
   LAYOUT CONTAINERS
   ============================================ */

.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
  max-width: var(--container-width);
}

/* Full-width container - occupies entire viewport width */
.full-width {
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.site-header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  /* Lighthouse: no layout shift on scroll */
  will-change: auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
}

.site-logo {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.site-logo a {
  color: inherit;
}

.site-logo a:focus-visible {
  outline-offset: 2px;
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  color: var(--color-text);
  font-size: var(--text-lg);
}

.menu-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
}

/* Navigation - desktop */
.primary-navigation {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.primary-navigation a {
  display: inline-block;
  padding: var(--spacing-sm) 0;
  position: relative;
  font-size: var(--text-sm);
}

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

.primary-navigation a:hover::after {
  width: 100%;
}

/* ============================================
   MOBILE RESPONSIVE (Mobile-First)
   ============================================ */

@media (max-width: 767px) {
  /* Typography scaling down */
  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  h3 {
    font-size: 1.125rem;
  }

  /* Spacing tighter on mobile */
  :root {
    --container-padding: 1rem;
    --spacing-lg: 1.5rem;
  }

  /* Menu toggle visible, nav hidden */
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .primary-navigation {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    gap: 0;
    padding: var(--spacing-md);
  }

  .primary-navigation.active {
    display: flex;
  }

  .primary-navigation a {
    padding: var(--spacing-md);
    display: block;
    border-bottom: 1px solid var(--color-border);
  }

  .primary-navigation a::after {
    display: none;
  }
}

/* Tablet+ */
@media (min-width: 768px) {
  .site-header {
    position: sticky;
  }

  .header-inner {
    padding: var(--spacing-lg) 0;
  }
}

/* Desktop large */
@media (min-width: 1024px) {
  :root {
    --container-padding: 2rem;
    --spacing-lg: 2rem;
  }

  h1 {
    font-size: var(--text-3xl);
  }

  h2 {
    font-size: var(--text-2xl);
  }
}

/* ============================================
   MAIN CONTENT LAYOUT
   ============================================ */

.site-main {
  min-height: calc(100vh - 200px);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.page-header {
  background-color: var(--color-bg-alt);
  padding: var(--spacing-2xl) var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
  margin-bottom: var(--spacing-md);
}

/* ============================================
   POSTS/ARTICLES GRID (Responsive)
   ============================================ */

.posts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

@media (min-width: 768px) {
  .posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .posts-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.post-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow var(--transition-normal),
              transform var(--transition-normal);
  display: flex;
  flex-direction: column;
  /* Lighthouse: prevent layout shift */
  min-height: auto;
}

.post-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.post-card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background-color: var(--color-bg-alt);
}

.post-card-content {
  padding: var(--spacing-md);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.post-card-title {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-sm);
  margin-top: 0;
}

.post-card-excerpt {
  color: var(--color-text-light);
  font-size: var(--text-sm);
  margin-bottom: var(--spacing-md);
  flex-grow: 1;
}

.post-card-meta {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  display: flex;
  gap: var(--spacing-sm);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--color-primary);
  background-color: transparent;
  color: var(--color-primary);
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  gap: var(--spacing-xs);
}

.btn:hover {
  background-color: var(--color-primary);
  color: white;
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: #1d4ed8;
  border-color: #1d4ed8;
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: white;
  border-color: var(--color-secondary);
}

.btn-secondary:hover {
  background-color: #d97706;
  border-color: #d97706;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================
   FORMS (Accessibility + Mobile-friendly)
   ============================================ */

form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

label {
  font-weight: 600;
  font-size: var(--text-sm);
}

input,
textarea,
select {
  padding: var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: var(--text-base);
  background-color: var(--color-bg);
  transition: border-color var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-color: var(--color-primary);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-2xl) 0;
  margin-top: var(--spacing-2xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-section h3 {
  margin-bottom: var(--spacing-md);
  font-size: var(--text-base);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

.footer-section a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

/* ============================================
   UTILITIES
   ============================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 8px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--color-text-light);
}

.margin-top {
  margin-top: var(--spacing-md);
}

.margin-bottom {
  margin-bottom: var(--spacing-md);
}

/* Prevent horizontal overflow (critical for mobile) */
html,
body {
  overflow-x: hidden;
}

/* ============================================
   LIGHTHOUSE OPTIMIZATION TWEAKS
   ============================================ */

/* Prevent CLS (Cumulative Layout Shift) */
img {
  display: block;
}

/* Optimize font loading */
@font-face {
  font-family: 'System Font Stack';
  src: local('Segoe UI'), local('Roboto'), local('Helvetica Neue');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* Reduce render-blocking (critical path) */
@media print {
  body {
    background: white;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .site-header,
  .site-footer,
  .menu-toggle,
  .skip-link {
    display: none;
  }

  .container {
    max-width: 100%;
  }
}