/*
Theme Name:  Tử Vi Thông Tuệ
Theme URI:   https://tuvi-thong-tue.com
Author:      Tử Vi Thông Tuệ
Description: Theme tối màu tím sang trọng cho website tử vi và chiêm tinh học. Trang chủ landing page editable qua Customizer. Trang bài viết layout 2 cột với sidebar, TOC tự động và info-card.
Version:     2.0.0
Requires at least: 6.2
Tested up to: 6.7
Requires PHP: 8.0
License:     GNU General Public License v2 or later
Text Domain: tuvi-thong-tue
Tags:        dark, purple, astrology, blog, custom-menu, featured-images, wide-blocks
*/

/* ──────────────────────────────────────
   DESIGN TOKENS
────────────────────────────────────── */
:root {
  --night:    #0F0620;
  --deep:     #1A0A2E;
  --mid:      #2D1157;
  --purple:   #7B3FC4;
  --violet:   #9B5FE0;
  --glow:     #C4A8FF;
  --gold:     #E8C97A;
  --gold-dim: #A8894A;
  --text:     #F0EAF8;
  --body:     #C8BDE0;
  --muted:    #A897C4;
  --border:   rgba(196,168,255,0.12);
  --border-m: rgba(196,168,255,0.22);
  --r-sm:     8px;
  --r-md:     12px;
  --r-lg:     16px;
  --r-xl:     20px;
  --max-w:    1160px;
}

/* ──────────────────────────────────────
   RESET
────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',sans-serif;
  background:var(--night);
  color:var(--body);
  line-height:1.75;
  overflow-x:hidden;
}
img,video{max-width:100%;height:auto;display:block}
a{color:var(--glow);text-decoration:none;transition:color .2s}
a:hover{color:var(--text)}
ul,ol{padding-left:1.5em}
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:var(--night)}
::-webkit-scrollbar-thumb{background:var(--mid);border-radius:2px}

/* ──────────────────────────────────────
   TYPOGRAPHY
────────────────────────────────────── */
h1,h2,h3,h4,h5,h6{
  font-family:'Playfair Display',serif;
  font-weight:500;line-height:1.25;color:var(--text);
}

/* ──────────────────────────────────────
   LAYOUT UTILITIES
────────────────────────────────────── */
.container{max-width:var(--max-w);margin:0 auto;padding:0 40px}
@media(max-width:768px){.container{padding:0 20px}}
.eyebrow{
  display:block;font-size:11px;font-weight:500;
  letter-spacing:.12em;color:var(--gold);
  text-transform:uppercase;margin-bottom:16px;
}

/* ──────────────────────────────────────
   BUTTONS
────────────────────────────────────── */
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'Inter',sans-serif;font-size:15px;font-weight:500;
  padding:13px 26px;background:var(--gold);color:#1A0A2E;
  border:none;border-radius:var(--r-sm);cursor:pointer;
  transition:background .2s,transform .1s;text-decoration:none;
}
.btn-main:hover{background:#f0d68a;color:#1A0A2E}
.btn-main:active{transform:scale(.98)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'Inter',sans-serif;font-size:14px;
  padding:12px 22px;background:transparent;color:var(--glow);
  border:.5px solid var(--border-m);border-radius:var(--r-sm);
  cursor:pointer;transition:border-color .2s,background .2s;text-decoration:none;
}
.btn-ghost:hover{border-color:var(--glow);background:rgba(196,168,255,.06);color:var(--glow)}

/* ──────────────────────────────────────
   NAV
────────────────────────────────────── */
#site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 40px;height:64px;
  background:rgba(15,6,32,.9);
  backdrop-filter:blur(14px);
  border-bottom:.5px solid var(--border);
  transition:background .3s;
}
.site-branding{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-mark{width:28px;height:28px;display:grid;grid-template-columns:1fr 1fr;gap:2px}
.logo-mark span{border-radius:2px;background:var(--purple);transition:opacity .3s}
.logo-mark span:nth-child(1){opacity:.85}
.logo-mark span:nth-child(2){opacity:.5}
.logo-mark span:nth-child(3){opacity:.4}
.logo-mark span:nth-child(4){opacity:.9}
.site-branding:hover .logo-mark span{opacity:1}
.site-name{
  font-family:'Playfair Display',serif;font-size:17px;
  font-weight:500;color:var(--text);
}
#primary-nav ul{display:flex;gap:28px;list-style:none}
#primary-nav a{font-size:14px;color:var(--muted);transition:color .2s}
#primary-nav a:hover,#primary-nav .current-menu-item a{color:var(--text)}
.nav-cta{
  font-family:'Inter',sans-serif;font-size:13px;font-weight:500;
  padding:8px 18px;background:var(--purple);color:#fff;
  border:none;border-radius:var(--r-sm);cursor:pointer;
  transition:background .2s;text-decoration:none;white-space:nowrap;
}
.nav-cta:hover{background:var(--violet);color:#fff}
.nav-toggle{
  display:none;background:none;border:none;
  cursor:pointer;padding:6px;color:var(--muted);
}
@media(max-width:900px){
  #site-header{padding:0 20px}
  #primary-nav{
    display:none;position:absolute;top:64px;left:0;right:0;
    background:rgba(15,6,32,.98);border-bottom:.5px solid var(--border);
    padding:16px 20px;
  }
  #primary-nav.open{display:block}
  #primary-nav ul{flex-direction:column;gap:14px}
  .nav-toggle{display:block}
}

/* ──────────────────────────────────────
   FOOTER
────────────────────────────────────── */
#site-footer{padding:56px 40px 32px;border-top:.5px solid var(--border)}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;
  gap:48px;margin-bottom:40px;max-width:var(--max-w);margin-left:auto;margin-right:auto;
}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:540px){.footer-grid{grid-template-columns:1fr}#site-footer{padding:40px 20px 24px}}
.footer-logo-wrap{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand-desc{font-size:13px;color:var(--muted);line-height:1.65;font-weight:300}
.footer-col h4{
  font-family:'Inter',sans-serif;font-size:11px;font-weight:500;
  letter-spacing:.1em;color:var(--glow);text-transform:uppercase;
  margin-bottom:16px;
}
.footer-col ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13px;color:var(--muted)}
.footer-col a:hover{color:var(--text)}
.footer-social{display:flex;align-items:center;gap:12px;margin-top:16px}
.social-link{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
.social-link:hover{color:var(--glow)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:10px;max-width:var(--max-w);margin:0 auto;
  padding-top:24px;border-top:.5px solid var(--border);
  font-size:12px;color:var(--muted);
}

/* ──────────────────────────────────────
   ANIMATIONS
────────────────────────────────────── */
.fade-up{
  opacity:0;transform:translateY(22px);
  transition:opacity .65s ease,transform .65s ease;
}
.fade-up.visible{opacity:1;transform:translateY(0)}
.fade-up:nth-child(2){transition-delay:.08s}
.fade-up:nth-child(3){transition-delay:.16s}
.fade-up:nth-child(4){transition-delay:.24s}
@media(prefers-reduced-motion:reduce){
  .fade-up{opacity:1;transform:none;transition:none}
  .hero-la-so,#stars-canvas{animation:none}
}

/* ──────────────────────────────────────
   WP ALIGNMENT
────────────────────────────────────── */
.alignleft{float:left;margin:.5em 1.5em 1em 0}
.alignright{float:right;margin:.5em 0 1em 1.5em}
.aligncenter{display:block;margin:0 auto 1.5em}
.wp-caption-text{font-size:13px;color:var(--muted);font-style:italic;margin-top:8px}
.screen-reader-text{
  border:0;clip:rect(1px,1px,1px,1px);clip-path:inset(50%);
  height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px;
}