/* ============================================================
 *  theme.css  — Pillars of Eternity Wiki  RPG Dark Fantasy
 *  3-Layer Background System + Dark/Light Mode + i18n
 * ============================================================ */

@import url("./theme-color.css");

/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family: 'Georgia','Times New Roman','Noto Serif SC',serif;
  line-height:2.0;
  background:hsl(var(--color-bg));
  color:hsl(var(--color-text));
  font-size:17px;
  min-height:100vh;
}
a{color:hsl(var(--nav-theme-light));text-decoration:none;transition:color .2s}
a:hover{color:hsl(var(--color-accent-gold))}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{font-family:'Georgia','Times New Roman','Noto Serif SC',serif;line-height:1.4;font-weight:700;color:hsl(var(--color-accent-gold));letter-spacing:.01em}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.6rem,3vw,2.3rem);margin:2.4rem 0 1rem;padding-bottom:.6rem;border-bottom:1px solid hsl(var(--color-border))}
h3{font-size:clamp(1.15rem,2vw,1.5rem);margin:1.8rem 0 .6rem;color:hsl(var(--nav-theme-light))}
p{margin-bottom:1.1rem;color:hsl(var(--color-text))}
ul,ol{margin:.8rem 0 1.2rem 1.6rem}
li{margin-bottom:.35rem}
table{width:100%;border-collapse:collapse;margin:1.2rem 0 1.6rem;font-size:15px;background:hsl(var(--color-surface));border:1px solid hsl(var(--color-border));border-radius:10px;overflow:hidden}
th{background:hsl(var(--nav-theme));color:#fff;padding:.7rem 1rem;text-align:left;font-weight:600}
td{padding:.65rem 1rem;border-top:1px solid hsl(var(--color-border))}
tr:hover td{background:hsl(var(--color-surface-2))}

/* ===== Layout Container (1680px Max Width · Wide-screen Friendly) ===== */
.container{max-width:1680px;margin:0 auto;padding:0 clamp(1rem,3vw,2.5rem)}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:hsl(var(--color-surface) / .96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid hsl(var(--color-border));
  box-shadow:0 2px 20px hsl(var(--nav-theme) / .15);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:2rem}
.nav-brand{display:flex;align-items:center;gap:.85rem;font-weight:700;font-size:1.1rem}
.brand-block{
  width:44px;height:44px;border-radius:10px;
  background:hsl(var(--nav-theme));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.3rem;font-weight:800;
  box-shadow:0 0 20px hsl(var(--color-accent-gold) / .25);
  border:1px solid hsl(var(--color-accent-gold) / .35);
}
.brand-text span{display:block}
.brand-text small{color:hsl(var(--color-text-muted));font-size:.75rem;font-weight:400}

.nav-links{display:flex;align-items:center;gap:.3rem;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.nav-links a{
  display:block;padding:.5rem .9rem;border-radius:8px;
  color:hsl(var(--color-text));font-size:.92rem;font-weight:500;
  transition:all .2s;
}
.nav-links a:hover,.nav-links a.active{
  background:hsl(var(--nav-theme) / .3);
  color:hsl(var(--color-accent-gold));
  box-shadow:inset 0 -2px 0 hsl(var(--color-accent-gold));
}
.nav-right{display:flex;align-items:center;gap:.6rem}
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.55rem 1.1rem;border-radius:10px;
  font-weight:600;font-size:.9rem;
  cursor:pointer;border:none;
  transition:all .2s;
}
.btn-primary{background:hsl(var(--nav-theme));color:#fff;box-shadow:0 4px 16px hsl(var(--nav-theme) / .4)}
.btn-primary:hover{background:hsl(var(--nav-theme-light));transform:translateY(-1px);color:#fff}
.btn-gold{background:hsl(var(--color-accent-gold));color:#1a1200;box-shadow:0 4px 18px hsl(var(--color-accent-gold) / .35)}
.btn-gold:hover{filter:brightness(1.08);transform:translateY(-1px);color:#1a1200}
.btn-ghost{background:transparent;color:hsl(var(--color-text));border:1px solid hsl(var(--color-border))}
.btn-ghost:hover{border-color:hsl(var(--color-accent-gold));color:hsl(var(--color-accent-gold))}

.lang-select,.theme-toggle{
  padding:.45rem .7rem;border-radius:8px;background:hsl(var(--color-surface-2));
  border:1px solid hsl(var(--color-border));color:hsl(var(--color-text));font-size:.85rem;cursor:pointer;
}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:.5rem}
.hamburger span{width:24px;height:2px;background:hsl(var(--color-text));border-radius:2px;transition:.2s}

/* ===== HERO · Layer 1/3: Main Hero Background ===== */
.hero-game-bg{
  position:relative;overflow:hidden;
  padding:clamp(4rem,10vw,8rem) 0 clamp(3rem,7vw,5.5rem);
}
.hero-game-bg::before{
  content:"";position:absolute;inset:0;
  background-image:url("/images/hero-main.jpg"),url("/images/page-bg.jpg");
  background-size:cover;background-position:center 30%;background-repeat:no-repeat;
  z-index:0;
}
.hero-game-bg::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(90deg, hsl(var(--color-bg) / .92) 0%, hsl(var(--color-bg) / .75) 45%, transparent 75%),
    radial-gradient(ellipse at 80% 60%, hsl(var(--color-accent-gold) / .18), transparent 60%);
}
.hero-inner{position:relative;z-index:2;max-width:1100px}
.hero-eyebrow{
  display:inline-block;padding:.3rem .8rem;margin-bottom:1.3rem;
  background:hsl(var(--nav-theme) / .4);border:1px solid hsl(var(--color-accent-gold) / .3);
  color:hsl(var(--color-accent-gold));
  border-radius:100px;font-size:.82rem;font-weight:600;letter-spacing:.02em;
}
.hero-title{margin-bottom:1.2rem;color:#fff;text-shadow:0 4px 30px hsl(var(--nav-theme) / .6)}
.hero-desc{font-size:1.1rem;max-width:720px;margin-bottom:2rem;color:hsl(var(--color-text) / .95)}
.hero-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;max-width:720px;margin-bottom:2.2rem}
.stat-chip{
  background:hsl(var(--color-surface) / .7);backdrop-filter:blur(6px);
  border:1px solid hsl(var(--color-border));border-radius:10px;
  padding:.9rem 1rem;text-align:center;
}
.stat-chip .label{display:block;font-size:.72rem;color:hsl(var(--color-text-muted));text-transform:uppercase;letter-spacing:.06em;margin-bottom:.3rem}
.stat-chip .value{display:block;font-size:1.05rem;font-weight:700;color:hsl(var(--color-accent-gold))}
.hero-ctas{display:flex;gap:1rem;flex-wrap:wrap}

/* ===== Page Hero · Layer 2/3: Inner Page Background System ===== */
.page-hero-bg{
  position:relative;overflow:hidden;
  padding:clamp(3rem,7vw,6rem) 0 clamp(2rem,5vw,3.5rem);
}
.page-hero-bg::before{content:"";position:absolute;inset:0;z-index:0;background-size:cover;background-position:center;background-repeat:no-repeat;background-color:hsl(var(--color-bg))}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(180deg, hsl(var(--color-bg) / .6) 0%, hsl(var(--color-bg) / .88) 70%, hsl(var(--color-bg)) 100%),
    radial-gradient(ellipse at 50% 0%, hsl(var(--color-accent-gold) / .15), transparent 60%);
}
.page-hero-inner{position:relative;z-index:2}

.page-beginner::before{background-image:url("/images/beginner.jpg"),url("/images/hero-main.jpg")}
.page-classes::before{background-image:url("/images/classes.jpg"),url("/images/hero-main.jpg")}
.page-companions::before{background-image:url("/images/companions.jpg"),url("/images/hero-main.jpg")}
.page-combat::before{background-image:url("/images/combat.jpg"),url("/images/hero-main.jpg")}
.page-progression::before{background-image:url("/images/page-bg.jpg"),url("/images/hero-main.jpg")}
.page-builds::before{background-image:url("/images/builds.jpg"),url("/images/hero-main.jpg")}
.page-patch::before{background-image:url("/images/hero-main.jpg"),url("/images/page-bg.jpg")}
.page-tier::before{background-image:url("/images/builds.jpg"),url("/images/hero-main.jpg")}

/* ===== Main Content Grid ===== */
.main-content{padding:clamp(2rem,5vw,4rem) 0}
.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:clamp(1.5rem,4vw,3.5rem);align-items:start}
.article-card{
  background:hsl(var(--color-surface));
  border:1px solid hsl(var(--color-border));
  border-radius:14px;
  padding:clamp(1.3rem,3vw,2.5rem);
  box-shadow:0 8px 40px 60px -20px hsl(0 0% 0% / .4);
}

/* ===== Breadcrumb ===== */
.breadcrumb{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem .2rem;margin:0 0 1.5rem;font-size:.88rem;color:hsl(var(--color-text-muted));padding:0}
.breadcrumb li{margin:0}
.breadcrumb li+li::before{content:"›";margin:0 .5rem;color:hsl(var(--color-accent-gold))}

/* ===== Cards (Start Section, CTA Related Guides) ===== */
.section-padding{padding:clamp(3rem,7vw,6rem) 0}
.section-eyebrow{display:block;text-align:center;font-size:.85rem;text-transform:uppercase;letter-spacing:.12em;color:hsl(var(--color-accent-gold));font-weight:600;margin-bottom:.6rem}
.section-title{text-align:center;margin-bottom:2.5rem;max-width:780px;margin-left:auto;margin-right:auto}

.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.3rem}
.start-card{
  background:hsl(var(--color-surface));
  border:1px solid hsl(var(--color-border));
  border-radius:14px;
  padding:1.8rem 1.6rem;
  transition:all .25s;
  position:relative;
  overflow:hidden;
}
.start-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,hsl(var(--nav-theme)),hsl(var(--color-accent-gold)));opacity:0;transition:opacity .25s}
.start-card:hover{transform:translateY(-4px);border-color:hsl(var(--color-accent-gold) / .4)}
.start-card:hover::before{opacity:1}
.card-num{
  width:40px;height:40px;border-radius:10px;
  background:hsl(var(--nav-theme) / .25);color:hsl(var(--color-accent-gold));
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1.1rem;margin-bottom:1rem;
  border:1px solid hsl(var(--color-accent-gold) / .25);
}
.start-card h3{color:hsl(var(--color-accent-gold));margin:.3rem 0 .6rem}
.start-card p{color:hsl(var(--color-text-muted));font-size:.95rem;margin:0}

/* ===== Info Card: Pro Tips / Common Mistakes ===== */
.info-card{
  border-radius:12px;
  padding:1.3rem 1.5rem;
  margin:1.5rem 0;
  border-left:4px solid hsl(var(--color-accent-gold));
  background:hsl(var(--color-accent-gold) / .08);
}
.info-card.error{border-left-color:hsl(0 65% 55%);background:hsl(0 65% 55% / .1)}
.info-card h4{color:hsl(var(--color-accent-gold));margin-bottom:.5rem}
.info-card.error h4{color:hsl(0 65% 65%)}

/* ===== TOC (Table of Contents) Sidebar ===== */
.toc-wrap{
  position:sticky;top:88px;
  background:hsl(var(--color-surface));
  border:1px solid hsl(var(--color-border));
  border-radius:12px;
  padding:1.2rem 1.3rem;
}
.toc-title{font-size:.85rem;text-transform:uppercase;letter-spacing:.1em;color:hsl(var(--color-accent-gold));margin-bottom:.9rem;padding-bottom:.7rem;border-bottom:1px solid hsl(var(--color-border))}
.toc-list{list-style:none;padding:0;margin:0;font-size:.9rem}
.toc-list li{margin:0}
.toc-list a{
  display:block;padding:.42rem .6rem;border-radius:6px;
  color:hsl(var(--color-text-muted));
  border-left:2px solid transparent;
  transition:all .15s;
}
.toc-list a:hover{color:hsl(var(--color-accent-gold));border-left-color:hsl(var(--color-accent-gold));background:hsl(var(--nav-theme) / .15)}

/* ===== About Stats Grid ===== */
.about-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(2rem,5vw,4rem);align-items:center;margin-top:1rem}
.about-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:.8rem}
.about-stat{
  background:hsl(var(--color-surface-2));
  border:1px solid hsl(var(--color-border));
  border-radius:10px;
  padding:.9rem 1rem;
}
.about-stat .lbl{display:block;font-size:.72rem;color:hsl(var(--color-text-muted));text-transform:uppercase;letter-spacing:.06em}
.about-stat .val{display:block;font-weight:700;margin-top:.15rem;color:hsl(var(--color-accent-gold))}

/* ===== Tier List Badges ===== */
.tier-badge{display:inline-block;padding:.2rem .65rem;border-radius:8px;font-weight:700;font-size:.85rem;margin-right:.4rem}
.tier-s{background:hsl(0 70% 50% / .2);color:hsl(0 70% 75%);border:1px solid hsl(0 70% 50% / .5)}
.tier-a{background:hsl(30 85% 50% / .2);color:hsl(30 85% 75%);border:1px solid hsl(30 85% 50% / .5)}
.tier-b{background:hsl(50 85% 50% / .2);color:hsl(50 85% 80%);border:1px solid hsl(50 85% 50% / .5)}
.tier-c{background:hsl(120 50% 50% / .2);color:hsl(120 50% 75%);border:1px solid hsl(120 50% 50% / .5)}
.tier-d{background:hsl(240 30% 50% / .2);color:hsl(240 30% 80%);border:1px solid hsl(240 30% 50% / .5)}

/* ===== FAQ Section ===== */
.faq-list{margin:1.5rem 0 0}
.faq-item{
  background:hsl(var(--color-surface-2));
  border:1px solid hsl(var(--color-border));
  border-radius:10px;
  margin-bottom:.8rem;
  overflow:hidden;
}
.faq-q{padding:1rem 1.3rem;font-weight:600;color:hsl(var(--color-accent-gold));cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:1rem}
.faq-a{padding:0 1.3rem 1.1rem;color:hsl(var(--color-text-muted));display:none}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-q{color:hsl(var(--nav-theme-light));background:hsl(var(--nav-theme) / .1)}

/* ===== CTA Final · Layer 3/3: Radial Ellipse Mask (R5) ===== */
.cta-game-bg{
  position:relative;overflow:hidden;
  padding:clamp(3rem,7vw,5rem) 0;
  margin:clamp(2.5rem,6vw,4.5rem) 0;
  border-radius:18px;
  border:1px solid hsl(var(--color-accent-gold) / .3);
}
.cta-game-bg::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:url("/images/page-bg.jpg"),url("/images/hero-main.jpg");
  background-size:cover;background-position:center;
}
.cta-game-bg::after{
  content:"";position:absolute;inset:0;z-index:1;
  background: radial-gradient(ellipse at 50% 40%, var(--cta-mask-center), transparent 72%);
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:820px;margin:0 auto}
.cta-inner h2{color:#fff;border:none;padding:0;margin-bottom:1rem;text-shadow:0 4px 24px hsl(var(--color-bg) / .9)}
.cta-inner p{color:hsl(0 0% 92%);font-size:1.05rem;margin-bottom:2rem;text-shadow:0 2px 10px hsl(var(--color-bg) / .7)}
.cta-inner .hero-ctas{justify-content:center}

/* ===== Related Guides ===== */
.related-title{font-size:1.4rem;margin-bottom:1.3rem;color:hsl(var(--color-accent-gold))}
.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem;margin-bottom:1rem}
.related-card{
  display:block;
  background:hsl(var(--color-surface-2));
  border:1px solid hsl(var(--color-border));
  border-radius:12px;
  padding:1.2rem 1.3rem;
  transition:all .2s;
}
.related-card:hover{border-color:hsl(var(--color-accent-gold) / .45);transform:translateY(-3px)}
.chip{display:inline-block;padding:.15rem .55rem;border-radius:100px;font-size:.7rem;background:hsl(var(--nav-theme) / .3);color:hsl(var(--nav-theme-light));margin-bottom:.5rem}
.related-card h4{color:hsl(var(--color-accent-gold));font-size:1rem;margin:.2rem 0 .4rem}
.related-card p{color:hsl(var(--color-text-muted));font-size:.88rem;margin:0}

/* ===== Footer ===== */
.site-footer{
  margin-top:4rem;padding:3rem 0 1.8rem;
  background:hsl(var(--color-surface));
  border-top:1px solid hsl(var(--color-border));
}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:2rem;margin-bottom:2.5rem}
.footer-col h5{color:hsl(var(--color-accent-gold));font-size:.9rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:1rem}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:.45rem}
.footer-col a{color:hsl(var(--color-text-muted));font-size:.92rem}
.footer-col a:hover{color:hsl(var(--color-accent-gold))}
.footer-about p{color:hsl(var(--color-text-muted));font-size:.9rem;line-height:1.9}
.footer-disclaimer{
  text-align:center;padding-top:1.8rem;border-top:1px solid hsl(var(--color-border));
  font-size:.82rem;color:hsl(var(--color-text-muted));
}
.footer-disclaimer strong{color:hsl(var(--nav-theme-light));font-weight:600}

/* ===== Mobile: < 1024px ===== */
@media (max-width:1024px){
  .content-grid{grid-template-columns:1fr}
  .toc-wrap{position:static;margin-bottom:2rem}
  .about-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;background:hsl(var(--color-surface));padding:1rem;border-bottom:1px solid hsl(var(--color-border));gap:.2rem}
  .nav-links.open{display:flex;z-index:99}
  .hamburger{display:flex}
  .hero-game-bg::after{background:linear-gradient(180deg, hsl(var(--color-bg) / .75) 0%, hsl(var(--color-bg) / .92) 100%)}
  .hero-inner{text-align:center}
  .hero-ctas{justify-content:center}
}
@media (max-width:600px){
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .about-stats{grid-template-columns:1fr 1fr}
  body{font-size:16px;line-height:1.9}
}

/* ===== Keyword Directory (Popular Search Topics) ===== */
.keyword-directory{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:1.3rem;
}
.kw-group{
  background:hsl(var(--color-surface));
  border:1px solid hsl(var(--color-border));
  border-radius:12px;
  padding:1.3rem 1.4rem;
  transition:border-color .25s,box-shadow .25s;
}
.kw-group:hover{
  border-color:hsl(var(--color-accent-gold) / .45);
  box-shadow:0 6px 24px hsl(var(--color-bg) / .5);
}
.kw-group-title{
  font-size:1rem;
  color:hsl(var(--color-accent-gold));
  margin:0 0 .8rem;
  padding-bottom:.6rem;
  border-bottom:1px solid hsl(var(--color-border));
  font-weight:700;
}
.kw-list{
  list-style:none;
  padding:0;
  margin:0;
}
.kw-list li{
  margin:0;
}
.kw-list a{
  display:block;
  padding:.35rem 0;
  color:hsl(var(--color-text-muted));
  font-size:.88rem;
  border-bottom:1px solid hsl(var(--color-border) / .4);
  transition:color .15s,padding-left .15s;
}
.kw-list a:hover{
  color:hsl(var(--color-accent-gold));
  padding-left:.5rem;
}
.kw-list li:last-child a{
  border-bottom:none;
}