/*
Theme Name: Video Grid
Theme URI: https://example.com/videogrid
Author: Custom Build
Description: ธีมสไตล์ video grid แบบ dark mode รองรับ Custom Post Type สำหรับวิดีโอ พร้อมหมวดหมู่และระบบค้นหา ออกแบบมาให้ใช้กับเว็บแสดงผล content แบบกริด
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: videogrid
Tags: dark, video, grid, custom-post-type
*/

/* ============ RESET ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
img,svg,video{display:block;max-width:100%;height:auto;}
button{font:inherit;cursor:pointer;background:none;border:none;color:inherit;}
a{color:inherit;text-decoration:none;}
ul,ol{list-style:none;}
input{font:inherit;}

/* ============ THEME TOKENS ============ */
:root{
  --bg:#0d0d10;
  --bg-2:#15151a;
  --bg-3:#1d1d24;
  --surface:#1a1a20;
  --border:rgba(255,255,255,0.06);
  --border-hover:rgba(255,255,255,0.15);
  --text:#f1f1f3;
  --text-muted:#8a8a92;
  --accent:#e91e63;
  --accent-hover:#f43f7a;
  --accent-soft:rgba(233,30,99,0.12);
  --radius:10px;
  --radius-sm:6px;
  --shadow:0 8px 24px rgba(0,0,0,0.4);
  --container:1440px;
  --pad:24px;
}

/* ============ BASE ============ */
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Sarabun','Noto Sans Thai',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  font-size:14px;
  line-height:1.6;
  font-weight:400;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}

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

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(13,13,16,0.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:14px var(--pad);
  display:flex;align-items:center;gap:32px;
}
.site-logo{
  font-family:'Inter',sans-serif;
  font-weight:800;font-size:24px;
  letter-spacing:-0.02em;
  color:var(--text);
  flex-shrink:0;
}
.site-logo span{color:var(--accent);}

.main-nav{
  flex:1;
  display:flex;justify-content:center;
}
.main-nav ul{
  display:flex;gap:4px;align-items:center;
}
.main-nav a{
  padding:8px 16px;
  border-radius:var(--radius-sm);
  color:var(--text);
  font-size:14px;font-weight:500;
  display:flex;align-items:center;gap:6px;
  transition:background 0.2s, color 0.2s;
}
.main-nav a:hover{background:var(--bg-3);color:var(--accent-hover);}
.main-nav a .icon{
  display:inline-flex;align-items:center;
  color:var(--accent);
}

.header-actions{
  display:flex;align-items:center;gap:14px;flex-shrink:0;
}
.search-toggle, .header-icon{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-muted);
  transition:background 0.2s, color 0.2s;
}
.search-toggle:hover, .header-icon:hover{
  background:var(--bg-3);color:var(--text);
}
.lang-flag{
  width:28px;height:20px;border-radius:3px;
  background:linear-gradient(180deg,#a51931 33%,#f4f5f8 33%,#f4f5f8 67%,#2d2a4a 67%);
  display:inline-block;
}
.user-avatar{
  width:36px;height:36px;border-radius:50%;
  background:var(--bg-3);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-muted);font-size:18px;
  border:1px solid var(--border);
}

/* ============ SEARCH BAR (expandable) ============ */
.search-form{
  position:absolute;
  top:100%;left:0;right:0;
  background:var(--bg-2);
  padding:20px var(--pad);
  border-bottom:1px solid var(--border);
  display:none;
}
.search-form.open{display:block;}
.search-form input{
  width:100%;
  background:var(--bg-3);
  border:1px solid var(--border);
  color:var(--text);
  padding:12px 16px;
  border-radius:var(--radius);
  outline:none;
}
.search-form input:focus{border-color:var(--accent);}

/* ============ SECTION ============ */
.video-section{
  padding:32px 0 8px;
}
.section-title{
  display:flex;align-items:center;gap:12px;
  font-size:18px;font-weight:700;
  color:var(--text);
  margin-bottom:20px;
}
.section-title::before{
  content:'';
  display:block;
  width:4px;height:20px;
  background:var(--accent);
  border-radius:2px;
}

/* ============ VIDEO GRID ============ */
.video-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:20px;
}

.video-card{
  display:block;
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform 0.25s ease;
}
.video-card:hover{transform:translateY(-4px);}

.video-thumb{
  position:relative;
  aspect-ratio:16/9;
  background:var(--bg-3);
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border);
  transition:border-color 0.25s ease;
}
.video-card:hover .video-thumb{border-color:var(--border-hover);}

.video-thumb-placeholder{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-muted);
  font-family:'Inter',sans-serif;
  font-size:13px;letter-spacing:0.2em;
  text-transform:uppercase;
  background:linear-gradient(135deg,#1f1f28 0%, #15151a 100%);
}
.video-thumb-placeholder::before{
  content:'';
  position:absolute;
  width:48px;height:48px;
  border-radius:50%;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--border);
}
.video-thumb-placeholder span{position:relative;z-index:2;}

.video-duration{
  position:absolute;
  bottom:8px;right:8px;
  background:rgba(0,0,0,0.85);
  color:var(--text);
  font-size:12px;font-weight:600;
  padding:3px 8px;
  border-radius:4px;
  font-variant-numeric:tabular-nums;
}

.video-badge{
  position:absolute;
  top:8px;left:8px;
  background:var(--accent);
  color:#fff;
  font-size:10px;font-weight:700;
  letter-spacing:0.1em;
  padding:3px 8px;
  border-radius:3px;
  text-transform:uppercase;
}

.play-overlay{
  position:absolute;inset:0;
  background:rgba(0,0,0,0.4);
  display:flex;align-items:center;justify-content:center;
  opacity:0;
  transition:opacity 0.25s ease;
}
.video-card:hover .play-overlay{opacity:1;}
.play-overlay svg{
  width:54px;height:54px;
  color:#fff;
  filter:drop-shadow(0 4px 12px rgba(0,0,0,0.6));
}

.video-info{
  padding:12px 4px 4px;
}
.video-title{
  font-size:14px;font-weight:500;
  color:var(--text);
  line-height:1.4;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:6px;
  transition:color 0.2s;
}
.video-card:hover .video-title{color:var(--accent-hover);}
.video-meta{
  font-size:12px;
  color:var(--text-muted);
  display:flex;align-items:center;gap:6px;
}
.video-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-muted);}

/* ============ LOAD MORE ============ */
.load-more-wrap{
  display:flex;justify-content:center;
  margin-top:24px;padding-bottom:8px;
}
.load-more{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 20px;
  color:var(--text-muted);
  font-size:13px;font-weight:500;
  border-radius:20px;
  transition:color 0.2s, background 0.2s;
}
.load-more:hover{color:var(--text);background:var(--bg-2);}
.load-more svg{width:14px;height:14px;}

/* ============ SINGLE VIDEO PAGE ============ */
.single-video{padding:32px 0;}
.video-player-wrap{
  background:#000;
  aspect-ratio:16/9;
  border-radius:var(--radius);
  overflow:hidden;
  margin-bottom:24px;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-muted);
}
.single-video h1{
  font-size:24px;font-weight:700;
  margin-bottom:12px;
}
.single-video-meta{
  display:flex;gap:16px;color:var(--text-muted);
  font-size:14px;margin-bottom:24px;
  padding-bottom:24px;border-bottom:1px solid var(--border);
}
.single-video-content{
  font-size:15px;line-height:1.8;
  color:var(--text);
}

/* ============ FOOTER ============ */
.site-footer{
  margin-top:60px;
  padding:40px 0 24px;
  border-top:1px solid var(--border);
  background:var(--bg-2);
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
  margin-bottom:32px;
}
.footer-col h5{
  font-size:13px;font-weight:600;
  color:var(--text);
  margin-bottom:14px;
  text-transform:uppercase;
  letter-spacing:0.1em;
}
.footer-col a{
  display:block;
  color:var(--text-muted);
  font-size:13px;padding:4px 0;
  transition:color 0.2s;
}
.footer-col a:hover{color:var(--accent-hover);}
.footer-col p{color:var(--text-muted);font-size:13px;}
.footer-bottom{
  padding-top:24px;
  border-top:1px solid var(--border);
  text-align:center;
  color:var(--text-muted);
  font-size:12px;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1100px){
  .video-grid{grid-template-columns:repeat(3, 1fr);}
  .main-nav a{padding:8px 10px;font-size:13px;}
}
@media (max-width: 768px){
  .video-grid{grid-template-columns:repeat(2, 1fr);}
  .main-nav{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .header-inner{gap:16px;}
}
@media (max-width: 480px){
  .video-grid{grid-template-columns:1fr;gap:16px;}
  .footer-grid{grid-template-columns:1fr;}
  :root{--pad:16px;}
}

/* ============ MOBILE MENU ============ */
.mobile-menu-btn{
  display:none;
  width:38px;height:38px;border-radius:50%;
  align-items:center;justify-content:center;
  color:var(--text);
}
@media (max-width: 768px){
  .mobile-menu-btn{display:flex;}
}
.mobile-menu{
  display:none;
  background:var(--bg-2);
  border-bottom:1px solid var(--border);
  padding:12px var(--pad);
}
.mobile-menu.open{display:block;}
.mobile-menu a{
  display:block;
  padding:12px 16px;
  border-radius:var(--radius-sm);
  color:var(--text);
  font-size:14px;font-weight:500;
}
.mobile-menu a:hover{background:var(--bg-3);}