/*
Theme Name: PhotoVerse IT Portal
Theme URI: https://photoverse.it.com
Description: Photography universe and humanoid robotics community platform.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 7.4
Text Domain: pvi-theme
*/

/* ========================================
   CSS Variables - Lumea Style
======================================== */
:root {
    --pvi-bg-cream: #faf8f5;
    --pvi-bg-warm: #f5f2ed;
    --pvi-bg-card: #ffffff;
    --pvi-bg-dark: #1c1c1c;
    --pvi-bg-darker: #141414;
    --pvi-text-dark: #1c1c1c;
    --pvi-text-body: #4a4a4a;
    --pvi-text-muted: #8c8c8c;
    --pvi-text-light: #faf8f5;
    --pvi-border: #e8e4de;
    --pvi-accent: #b8956c;
    --pvi-accent-hover: #9a7a56;
    --pvi-radius-sm: 4px;
    --pvi-radius-md: 8px;
    --pvi-radius-lg: 16px;
    --pvi-radius-xl: 24px;
    --pvi-transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    --pvi-font-serif: 'Cormorant Garamond', Georgia, serif;
    --pvi-font-sans: 'DM Sans', -apple-system, sans-serif;
    --pvi-container: 1320px;
    --pvi-gap: 24px;
}

/* ========================================
   Reset & Base
======================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--pvi-font-sans); background-color: var(--pvi-bg-cream); color: var(--pvi-text-dark); line-height: 1.7; }
a { color: inherit; text-decoration: none; transition: var(--pvi-transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* Typography */
h1, h2, h3, h4, h5, h6 { font-family: var(--pvi-font-serif); font-weight: 400; line-height: 1.15; letter-spacing: -0.02em; }
h1 { font-size: clamp(3.5rem, 7vw, 6rem); }
h2 { font-size: clamp(2.5rem, 5vw, 4rem); }
h3 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
h4 { font-size: 1.5rem; }
p { color: var(--pvi-text-body); margin-bottom: 1rem; }

/* Layout */
.pvi-container { width: 100%; max-width: var(--pvi-container); margin: 0 auto; padding: 0 var(--pvi-gap); }
.pvi-section { padding: 140px 0; }

/* ========================================
   Header
======================================== */
.pvi-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(250, 248, 245, 0.92); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); transition: var(--pvi-transition); }
.pvi-header.scrolled { box-shadow: 0 1px 0 var(--pvi-border); }
.pvi-header-inner { display: flex; align-items: center; justify-content: space-between; height: 100px; max-width: var(--pvi-container); margin: 0 auto; padding: 0 var(--pvi-gap); }
.pvi-logo { font-family: var(--pvi-font-serif); font-size: 1.875rem; font-weight: 500; letter-spacing: -0.03em; color: var(--pvi-text-dark); }
.pvi-logo span { font-weight: 300; font-style: italic; }
.pvi-nav-list { display: flex; align-items: center; gap: 56px; }
.pvi-nav-item a { font-size: 0.9375rem; font-weight: 500; color: var(--pvi-text-body); position: relative; }
.pvi-nav-item a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 1px; background: var(--pvi-text-dark); transition: var(--pvi-transition); }
.pvi-nav-item a:hover, .pvi-nav-item.active a { color: var(--pvi-text-dark); }
.pvi-nav-item a:hover::after, .pvi-nav-item.active a::after { width: 100%; }

.pvi-menu-toggle { display: none; width: 32px; height: 32px; background: none; border: none; cursor: pointer; position: relative; }
.pvi-menu-toggle span { position: absolute; left: 0; width: 100%; height: 1px; background: var(--pvi-text-dark); transition: var(--pvi-transition); }
.pvi-menu-toggle span:nth-child(1) { top: 8px; }
.pvi-menu-toggle span:nth-child(2) { top: 15px; }
.pvi-menu-toggle span:nth-child(3) { top: 22px; }
.pvi-menu-toggle.active span:nth-child(1) { top: 15px; transform: rotate(45deg); }
.pvi-menu-toggle.active span:nth-child(2) { opacity: 0; }
.pvi-menu-toggle.active span:nth-child(3) { top: 15px; transform: rotate(-45deg); }

/* ========================================
   Hero Section
======================================== */
.pvi-hero { min-height: 100vh; display: flex; align-items: center; padding-top: 100px; background: var(--pvi-bg-cream); overflow: hidden; }
.pvi-hero-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 80px; align-items: center; }
.pvi-hero-content { padding-right: 40px; }
.pvi-hero-label { display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; color: var(--pvi-accent); margin-bottom: 32px; padding-bottom: 16px; border-bottom: 1px solid var(--pvi-border); }
.pvi-hero-title { margin-bottom: 32px; }
.pvi-hero-title em { font-style: italic; font-weight: 300; }
.pvi-hero-desc { font-size: 1.125rem; color: var(--pvi-text-body); max-width: 440px; margin-bottom: 48px; line-height: 1.8; }
.pvi-hero-actions { display: flex; align-items: center; gap: 24px; }
.pvi-hero-visual { position: relative; }
.pvi-hero-image { position: relative; aspect-ratio: 4/5; border-radius: var(--pvi-radius-lg); overflow: hidden; background: var(--pvi-bg-warm); }
.pvi-hero-image img { width: 100%; height: 100%; object-fit: cover; }
.pvi-hero-float { position: absolute; bottom: -40px; left: -60px; background: var(--pvi-bg-card); padding: 32px; border-radius: var(--pvi-radius-md); box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08); }
.pvi-hero-float-number { font-family: var(--pvi-font-serif); font-size: 3rem; font-weight: 400; color: var(--pvi-text-dark); line-height: 1; }
.pvi-hero-float-label { font-size: 0.8125rem; color: var(--pvi-text-muted); margin-top: 8px; }

/* Buttons */
.pvi-btn { display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 20px 40px; font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; border-radius: var(--pvi-radius-sm); transition: var(--pvi-transition); cursor: pointer; border: none; }
.pvi-btn-dark { background: var(--pvi-bg-dark); color: var(--pvi-text-light); }
.pvi-btn-dark:hover { background: var(--pvi-bg-darker); transform: translateY(-2px); }
.pvi-btn-outline { background: transparent; color: var(--pvi-text-dark); border: 1px solid var(--pvi-border); }
.pvi-btn-outline:hover { background: var(--pvi-bg-dark); color: var(--pvi-text-light); border-color: var(--pvi-bg-dark); }
.pvi-btn-accent { background: var(--pvi-accent); color: var(--pvi-bg-card); }
.pvi-btn-accent:hover { background: var(--pvi-accent-hover); }

/* ========================================
   Category Filter
======================================== */
.pvi-filter { display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 64px; flex-wrap: wrap; }
.pvi-filter-btn { padding: 14px 28px; font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.05em; color: var(--pvi-text-body); background: transparent; border: 1px solid var(--pvi-border); border-radius: var(--pvi-radius-sm); cursor: pointer; transition: var(--pvi-transition); }
.pvi-filter-btn:hover, .pvi-filter-btn.active { color: var(--pvi-text-light); background: var(--pvi-bg-dark); border-color: var(--pvi-bg-dark); }

/* ========================================
   Posts Section
======================================== */
.pvi-posts-section { padding: 120px 0; background: var(--pvi-bg-warm); }
.pvi-section-header { text-align: center; margin-bottom: 80px; }
.pvi-section-label { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; color: var(--pvi-accent); margin-bottom: 20px; display: block; }
.pvi-section-header h2 { margin-bottom: 20px; }
.pvi-section-header p { max-width: 560px; margin: 0 auto; font-size: 1.0625rem; }
.pvi-posts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }

/* Post Card */
.pvi-card { background: var(--pvi-bg-card); border-radius: var(--pvi-radius-lg); overflow: hidden; transition: var(--pvi-transition); }
.pvi-card:hover { transform: translateY(-12px); box-shadow: 0 40px 80px rgba(0, 0, 0, 0.08); }
.pvi-card-image { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--pvi-bg-warm); }
.pvi-card-image img { width: 100%; height: 100%; object-fit: cover; transition: var(--pvi-transition); }
.pvi-card:hover .pvi-card-image img { transform: scale(1.05); }
.pvi-card-category { position: absolute; top: 20px; left: 20px; padding: 8px 16px; background: var(--pvi-bg-card); color: var(--pvi-text-dark); border-radius: var(--pvi-radius-sm); font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; }
.pvi-card-body { padding: 36px; }
.pvi-card-meta { font-size: 0.75rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--pvi-accent); margin-bottom: 16px; }
.pvi-card-title { font-size: 1.5rem; margin-bottom: 16px; line-height: 1.3; }
.pvi-card-title a:hover { color: var(--pvi-accent); }
.pvi-card-excerpt { font-size: 0.9375rem; color: var(--pvi-text-body); margin-bottom: 28px; line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.pvi-card-link { display: inline-flex; align-items: center; gap: 10px; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase; color: var(--pvi-text-dark); }
.pvi-card-link svg { width: 16px; height: 16px; transition: var(--pvi-transition); }
.pvi-card-link:hover { color: var(--pvi-accent); }
.pvi-card-link:hover svg { transform: translateX(6px); }

/* ========================================
   About Section
======================================== */
.pvi-about { padding: 140px 0; background: var(--pvi-bg-cream); }
.pvi-about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center; }
.pvi-about-image { position: relative; aspect-ratio: 3/4; border-radius: var(--pvi-radius-lg); overflow: hidden; background: var(--pvi-bg-warm); }
.pvi-about-image img { width: 100%; height: 100%; object-fit: cover; }
.pvi-about-content h2 { margin-bottom: 32px; }
.pvi-about-content p { font-size: 1.0625rem; margin-bottom: 24px; }

.pvi-features { display: flex; flex-direction: column; gap: 24px; margin: 48px 0; }
.pvi-feature { display: flex; align-items: flex-start; gap: 20px; }
.pvi-feature-icon { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; background: var(--pvi-bg-warm); border-radius: var(--pvi-radius-md); flex-shrink: 0; }
.pvi-feature-icon svg { width: 24px; height: 24px; color: var(--pvi-accent); }
.pvi-feature h4 { font-family: var(--pvi-font-sans); font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.pvi-feature p { font-size: 0.9375rem; margin: 0; color: var(--pvi-text-muted); }

/* Stats Section */
.pvi-stats { padding: 100px 0; background: var(--pvi-bg-dark); }
.pvi-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 48px; }
.pvi-stat { text-align: center; }
.pvi-stat-number { font-family: var(--pvi-font-serif); font-size: 4rem; font-weight: 400; color: var(--pvi-text-light); line-height: 1; margin-bottom: 12px; }
.pvi-stat-label { font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255, 255, 255, 0.5); }

/* ========================================
   Single Post
======================================== */
.pvi-single { padding-top: 160px; padding-bottom: 120px; }
.pvi-single-header { max-width: 800px; margin: 0 auto 72px; text-align: center; }
.pvi-single-category { display: inline-block; font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; color: var(--pvi-accent); padding: 12px 24px; border: 1px solid var(--pvi-border); border-radius: var(--pvi-radius-sm); margin-bottom: 32px; }
.pvi-single-title { margin-bottom: 32px; }
.pvi-single-meta { display: flex; align-items: center; justify-content: center; gap: 40px; font-size: 0.875rem; color: var(--pvi-text-muted); }
.pvi-single-featured { max-width: 1000px; margin: 0 auto 72px; aspect-ratio: 16/9; border-radius: var(--pvi-radius-lg); overflow: hidden; background: var(--pvi-bg-warm); }
.pvi-single-featured img { width: 100%; height: 100%; object-fit: cover; }
.pvi-single-content { max-width: 720px; margin: 0 auto; }
.pvi-single-content p { font-size: 1.0625rem; line-height: 1.9; margin-bottom: 1.75rem; }
.pvi-single-content h2 { font-size: 2rem; margin: 64px 0 28px; }
.pvi-single-content h3 { font-size: 1.5rem; margin: 48px 0 24px; }
.pvi-single-content blockquote { margin: 48px 0; padding: 40px 48px; background: var(--pvi-bg-warm); border-left: 3px solid var(--pvi-accent); border-radius: 0 var(--pvi-radius-md) var(--pvi-radius-md) 0; }
.pvi-single-content blockquote p { font-family: var(--pvi-font-serif); font-size: 1.375rem; font-style: italic; color: var(--pvi-text-dark); margin: 0; }
.pvi-single-content ul, .pvi-single-content ol { margin: 28px 0; padding-left: 24px; }
.pvi-single-content li { margin-bottom: 12px; color: var(--pvi-text-body); list-style: disc; }
.pvi-single-content a { color: var(--pvi-accent); text-decoration: underline; text-underline-offset: 3px; }

/* CTA Section */
.pvi-cta { padding: 140px 0; background: var(--pvi-bg-dark); text-align: center; }
.pvi-cta-content { max-width: 680px; margin: 0 auto; }
.pvi-cta h2 { color: var(--pvi-text-light); margin-bottom: 24px; }
.pvi-cta p { font-size: 1.125rem; color: rgba(255, 255, 255, 0.6); margin-bottom: 48px; }

/* ========================================
   Footer
======================================== */
.pvi-footer { background: var(--pvi-bg-darker); padding: 100px 0 48px; }
.pvi-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 64px; margin-bottom: 80px; }
.pvi-footer-brand .pvi-logo { color: var(--pvi-text-light); margin-bottom: 24px; display: inline-block; }
.pvi-footer-brand p { font-size: 0.9375rem; color: rgba(255, 255, 255, 0.5); max-width: 280px; line-height: 1.8; }
.pvi-footer-title { font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 32px; color: var(--pvi-text-light); }
.pvi-footer-links li { margin-bottom: 16px; }
.pvi-footer-links a { font-size: 0.9375rem; color: rgba(255, 255, 255, 0.5); }
.pvi-footer-links a:hover { color: var(--pvi-accent); }
.pvi-footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 48px; border-top: 1px solid rgba(255, 255, 255, 0.08); font-size: 0.875rem; color: rgba(255, 255, 255, 0.4); }
.pvi-footer-social { display: flex; gap: 16px; }
.pvi-footer-social a { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; border: 1px solid rgba(255, 255, 255, 0.1); border-radius: var(--pvi-radius-sm); color: rgba(255, 255, 255, 0.5); transition: var(--pvi-transition); }
.pvi-footer-social a:hover { background: var(--pvi-accent); border-color: var(--pvi-accent); color: var(--pvi-bg-dark); }

/* Pagination */
.pvi-pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 80px; }
.pvi-pagination a, .pvi-pagination span { display: flex; align-items: center; justify-content: center; min-width: 52px; height: 52px; padding: 0 20px; font-size: 0.9375rem; font-weight: 500; color: var(--pvi-text-body); background: var(--pvi-bg-card); border: 1px solid var(--pvi-border); border-radius: var(--pvi-radius-sm); transition: var(--pvi-transition); }
.pvi-pagination a:hover { border-color: var(--pvi-text-dark); }
.pvi-pagination .current { color: var(--pvi-text-light); background: var(--pvi-bg-dark); border-color: var(--pvi-bg-dark); }

/* ========================================
   Responsive
======================================== */
@media (max-width: 1024px) {
    .pvi-hero-grid, .pvi-about-grid { grid-template-columns: 1fr; gap: 60px; }
    .pvi-hero-content { padding-right: 0; text-align: center; }
    .pvi-hero-desc { margin-left: auto; margin-right: auto; }
    .pvi-hero-actions { justify-content: center; }
    .pvi-hero-visual { max-width: 500px; margin: 0 auto; }
    .pvi-hero-float { left: auto; right: -20px; bottom: -20px; }
    .pvi-posts-grid { grid-template-columns: repeat(2, 1fr); }
    .pvi-about-image { max-width: 500px; margin: 0 auto; order: -1; }
    .pvi-footer-grid { grid-template-columns: 1fr 1fr; }
    .pvi-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
}

@media (max-width: 768px) {
    :root { --pvi-gap: 20px; }
    .pvi-header-inner { height: 80px; }
    .pvi-nav { position: fixed; top: 80px; left: 0; right: 0; bottom: 0; background: var(--pvi-bg-cream); padding: 60px 24px; transform: translateX(100%); transition: var(--pvi-transition); }
    .pvi-nav.active { transform: translateX(0); }
    .pvi-nav-list { flex-direction: column; gap: 40px; }
    .pvi-nav-item a { font-family: var(--pvi-font-serif); font-size: 2rem; }
    .pvi-menu-toggle { display: block; }
    .pvi-hero { min-height: auto; padding: 140px 0 100px; }
    .pvi-hero-actions { flex-direction: column; width: 100%; }
    .pvi-btn { width: 100%; }
    .pvi-posts-grid { grid-template-columns: 1fr; }
    .pvi-footer-grid { grid-template-columns: 1fr; gap: 48px; }
    .pvi-footer-bottom { flex-direction: column; gap: 24px; text-align: center; }
    .pvi-section { padding: 100px 0; }
    .pvi-stats-grid { grid-template-columns: 1fr 1fr; }
    .pvi-stat-number { font-size: 3rem; }
}

@media (max-width: 480px) {
    h1 { font-size: 2.75rem; }
    h2 { font-size: 2rem; }
    .pvi-card-body { padding: 28px; }
    .pvi-hero-float { display: none; }
}

/* Placeholder */
.pvi-placeholder { width: 100%; height: 100%; background: linear-gradient(135deg, var(--pvi-bg-warm) 0%, var(--pvi-bg-card) 100%); display: flex; align-items: center; justify-content: center; }
.pvi-placeholder svg { width: 64px; height: 64px; color: var(--pvi-border); }