/*
Theme Name: Fun73 Theme
Theme URI: https://example.com
Author: Custom
Description: Fun73 越南旅遊娛樂目錄主題，全寬版面，RWD，多重篩選
Version: 2.2
Tags: responsive, travel, directory
Text Domain: fun73theme
*/

/* ─── RESET ─────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:        #111118;
  --bg-card:   #1c1c28;
  --bg-hdr:    #0d0d18;
  --accent:    #e8433f;
  --gold:      #f0c040;
  --text:      #f5f5f5;
  --muted:     #a8afc2;
  --border:    rgba(255,255,255,0.07);
  --radius:    14px;
  --tab-h:     64px;
  --hdr-h:     64px;
  --inner-max: 1360px;
  --inner-pad: 40px;
}
html,body{
  font-family:'Noto Sans TC','PingFang TC','Microsoft JhengHei',sans-serif;
  background:var(--bg);color:var(--text);font-size:16px;
  min-height:100vh;width:100%;overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}

/* ─── SITE WRAPPER ──────────────────── */
.site-wrapper{width:100%;min-height:100vh;display:flex;flex-direction:column}

/* ─── INNER ─────────────────────────── */
.inner{width:100%;max-width:var(--inner-max);margin:0 auto;padding:0 var(--inner-pad)}

/* ═══════════════════════════════════════
   HEADER
═══════════════════════════════════════ */
.site-header{
  width:100%;height:var(--hdr-h);
  background:var(--bg-hdr);border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:200;
}
.header-inner{
  height:100%;display:flex;align-items:center;gap:16px;
  max-width:var(--inner-max);margin:0 auto;padding:0 var(--inner-pad);
}
.site-logo{font-size:26px;font-weight:900;color:var(--accent);letter-spacing:-1px;flex-shrink:0}
.site-logo span{color:var(--gold)}

/* desktop nav */
.header-nav{flex:1;display:flex;gap:4px}
.header-nav a{padding:7px 16px;border-radius:24px;font-size:15px;color:var(--muted);transition:all .2s}
.header-nav a:hover,.header-nav a.current{background:rgba(232,67,63,.12);color:var(--accent)}

/* header right */
.header-right{flex-shrink:0;display:flex;align-items:center;gap:10px}
.btn-search-icon{
  width:38px;height:38px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);border-radius:50%;cursor:pointer;border:1px solid var(--border);
  transition:background .2s;
}
.btn-search-icon:hover{background:rgba(255,255,255,.12)}
.btn-search-icon svg{width:18px;height:18px;stroke:var(--muted)}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.hamburger span{display:block;width:24px;height:2px;background:var(--muted);border-radius:2px}

/* mobile nav */
.mobile-nav{
  display:none;position:fixed;top:var(--hdr-h);left:0;right:0;
  background:var(--bg-hdr);border-bottom:1px solid var(--border);
  z-index:150;max-height:calc(100vh - var(--hdr-h));overflow-y:auto;
}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:13px 24px;font-size:16px;color:var(--muted);border-bottom:1px solid var(--border)}
.mobile-nav a:hover,.mobile-nav a.on{color:var(--accent)}

/* ═══════════════════════════════════════
   FILTER PANEL — 兩行篩選列
   城市 / 分類 全部用純 <a> chip
═══════════════════════════════════════ */
.filter-panel{
  padding:14px 0 6px;
  display:flex;flex-direction:column;gap:8px;
}

.filter-row{
  display:flex;align-items:flex-start;gap:10px;
}

.filter-row-label{
  flex-shrink:0;
  width:32px;
  padding-top:7px;
  font-size:12px;
  font-weight:700;
  color:var(--muted);
  letter-spacing:.06em;
  text-align:right;
}

.filter-chips-wrap{
  flex:1;
  display:flex;
  flex-wrap:wrap;
  gap:7px;
}

/* chip 基底 */
.filter-chip{
  display:inline-flex;align-items:center;gap:4px;
  padding:6px 15px;border-radius:20px;font-size:13px;font-weight:500;
  border:1px solid var(--border);color:var(--muted);
  cursor:pointer;transition:all .18s;white-space:nowrap;
  background:rgba(255,255,255,.03);
}
.filter-chip:hover{
  border-color:rgba(255,255,255,.2);
  color:var(--text);
  background:rgba(255,255,255,.07);
}

/* 城市 chip 選中 */
.filter-chip--city.filter-chip--on{
  background:rgba(240,192,64,.18);
  border-color:rgba(240,192,64,.5);
  color:var(--gold);
  font-weight:700;
}
.filter-chip--city.filter-chip--on:hover{
  background:rgba(240,192,64,.28);
}

/* 分類 chip 選中 */
.filter-chip--cat.filter-chip--on{
  background:rgba(232,67,63,.18);
  border-color:rgba(232,67,63,.5);
  color:#ff7a77;
  font-weight:700;
}
.filter-chip--cat.filter-chip--on:hover{
  background:rgba(232,67,63,.28);
}

/* section-title 小標籤 */
.section-title-tag{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:500;
  padding:3px 10px;border-radius:20px;
  background:rgba(240,192,64,.15);color:var(--gold);
  margin-left:6px;
}

/* ═══════════════════════════════════════
   HERO SECTION
═══════════════════════════════════════ */
.hero-section{padding:20px 0 0}

/* Banner Row */
.banner-row{
  display:grid;
  grid-template-columns:3fr 1fr;
  gap:10px;
  height:320px;
}
/* 左側主 Banner */
.banner-main{
  border-radius:var(--radius);
  overflow:hidden;
  position:relative;   /* 作為 swiper 的 containing block */
  height:100%;
}
/* Swiper 撐滿父層，用 absolute 鎖死 */
.banner-main .swiper{
  position:absolute !important;
  top:0; left:0; right:0; bottom:0;
  width:100% !important;
  height:100% !important;
  overflow:hidden !important;
}
.banner-main .swiper-wrapper{
  height:100% !important;
}
/* fade 模式：每張 slide 都是 absolute，要鎖住 */
.banner-main .swiper-slide{
  position:absolute !important;
  top:0; left:0;
  width:100% !important;
  height:100% !important;
  overflow:hidden;
}
.banner-main .swiper-slide a{
  display:block;
  width:100%;
  height:100%;
}
/* 圖片填滿 slide，不超出 */
.banner-main .swiper-slide img{
  display:block;
  position:absolute;
  top:0; left:0;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  max-width:none !important;
  max-height:none !important;
}
.banner-placeholder{
  width:100%;height:100%;
  background:linear-gradient(135deg,#1a1a2e,#e8433f);
  display:flex;align-items:center;justify-content:center;
}
.banner-placeholder span{color:#fff;font-size:20px;font-weight:800;opacity:.8}
.swiper-pagination{
  position:absolute;
  bottom:12px;left:50%;
  transform:translateX(-50%);
  display:flex;gap:6px;z-index:10;
}
.swiper-pagination-bullet{
  width:7px;height:7px;border-radius:50%;
  background:rgba(255,255,255,.35);
  cursor:pointer;transition:all .25s;
}
.swiper-pagination-bullet-active{background:var(--accent);width:24px;border-radius:4px}
/* 右側小圖 */
.banner-side{display:flex;flex-direction:column;gap:10px;height:100%}
.banner-side-item{
  flex:1;
  border-radius:var(--radius);
  overflow:hidden;
  display:block;
  background:var(--bg-card);
  position:relative;
}
.banner-side-item img{
  position:absolute;
  top:0;left:0;
  width:100%;height:100%;
  object-fit:cover;
  object-position:center;
  max-width:none !important;
}
.banner-side-item.banner-placeholder{display:flex;align-items:center;justify-content:center}
.banner-side-item.banner-placeholder span{font-size:13px;opacity:.5}

/* ─── MAIN CONTENT ───────────────────── */
.main-content{flex:1;padding:28px 0 40px}
.section-title{
  font-size:22px;font-weight:800;margin-bottom:20px;
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.section-title::before{content:'';width:5px;height:22px;background:var(--accent);border-radius:3px;display:block;flex-shrink:0}

/* posts grid */
.posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.post-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,0.12);transition:all .25s}
.post-card:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(0,0,0,.5);border-color:rgba(232,67,63,.4)}
.post-card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-hdr)}
.post-card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.post-card:hover .post-card-thumb img{transform:scale(1.07)}
.thumb-placeholder{width:100%;height:100%;min-height:120px;background:linear-gradient(135deg,#1c1c28,#0d0d18);display:flex;align-items:center;justify-content:center}
.thumb-placeholder span{font-size:40px;opacity:.18}
.post-card-body{padding:18px}
.post-card-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.post-card-tag{display:inline-block;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600}
.post-card-tag--cat{background:rgba(232,67,63,.2);color:#ff6b67}
.post-card-tag--city{background:rgba(100,200,255,.12);color:#72d0f5}
.post-card-title{font-size:18px;font-weight:700;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:#fff;line-height:1.5}
.post-card-meta{font-size:13px;color:#c0c7d8}

/* ─── FOOTER ────────────────────────── */
.site-footer{background:var(--bg-hdr);border-top:1px solid var(--border);padding:22px var(--inner-pad);color:var(--muted);font-size:14px;text-align:center}

/* ─── TAB BAR ───────────────────────── */
.tab-bar{display:none;position:fixed;bottom:0;left:0;right:0;height:var(--tab-h);background:var(--bg-hdr);border-top:1px solid var(--border);z-index:200}
.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:12px;color:var(--muted);cursor:pointer;transition:color .2s}
.tab-item svg{width:24px;height:24px}
.tab-item.active,.tab-item:hover{color:var(--accent)}

/* ─── SEARCH OVERLAY ────────────────── */
.search-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.75);z-index:500;align-items:center;justify-content:center}
.search-overlay.active{display:flex}
.search-box{background:var(--bg-card);border-radius:18px;padding:32px;width:90%;max-width:500px;border:1px solid var(--border)}
.search-box p{font-size:15px;margin-bottom:6px;color:var(--text)}
.search-box .search-hint{font-size:12px;color:var(--muted);margin-bottom:16px}
.search-box input{width:100%;padding:12px 16px;background:rgba(255,255,255,.07);border:1px solid var(--border);border-radius:10px;color:var(--text);font-size:16px;outline:none;margin-bottom:16px}
.search-box input:focus{border-color:var(--accent)}
.search-btns{display:flex;gap:10px;justify-content:flex-end}
.sbtn-cancel{padding:9px 20px;border-radius:10px;border:none;background:rgba(255,255,255,.08);color:var(--muted);font-size:14px;cursor:pointer}
.sbtn-ok{padding:9px 24px;border-radius:10px;border:none;background:var(--accent);color:#fff;font-size:14px;font-weight:700;cursor:pointer}

/* ─── BACK TO TOP ───────────────────── */
#btt{position:fixed;right:22px;bottom:26px;width:42px;height:42px;background:var(--accent);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;opacity:0;pointer-events:none;transition:opacity .3s,transform .3s;z-index:99;text-decoration:none}
#btt.show{opacity:1;pointer-events:auto}
#btt:hover{transform:translateY(-3px)}

/* ═══════════════════════════════════════
   RWD — TABLET  ≤ 1100px
═══════════════════════════════════════ */
@media (max-width:1100px){
  :root{--inner-pad:28px}
  .banner-row{height:260px}
}

/* ═══════════════════════════════════════
   RWD — MOBILE  ≤ 768px
═══════════════════════════════════════ */
@media (max-width:768px){
  :root{--inner-pad:14px}

  .header-nav{display:none}
  .hamburger{display:flex}
  .site-logo{font-size:22px}

  .tab-bar{display:flex}
  .site-footer{display:none}
  .main-content{padding-bottom:calc(var(--tab-h)+16px)}

  /* Banner */
  .banner-row{grid-template-columns:1fr;height:auto;gap:8px}
  /* 手機主 banner 用 aspect-ratio 撐高，不能用 height:100% 因為父層是 auto */
  .banner-main{
    border-radius:12px;
    height:auto;
    aspect-ratio:16/7;
    position:relative;
    overflow:hidden;
  }
  /* slide 圖片跟著 aspect-ratio 撐開的父層 */
  .banner-main .swiper-slide img{
    aspect-ratio:unset;
    height:100%;
  }
  .banner-side{flex-direction:row}
  .banner-side-item{
    aspect-ratio:16/7;
    flex:1;
    height:auto;
  }

  /* Filter Panel — 兩行都橫向捲動 */
  .hero-section .inner{padding:0;overflow:visible}
  .filter-panel{padding:10px 0 4px;gap:6px}

  .filter-row{
    gap:0;
    align-items:stretch;
  }
  .filter-row-label{
    writing-mode:horizontal-tb;
    width:auto;
    padding:8px 0 8px var(--inner-pad);
    padding-right:8px;
    font-size:11px;
    display:flex;
    align-items:center;
    flex-shrink:0;
  }
  .filter-chips-wrap{
    flex:1;
    flex-wrap:nowrap;
    overflow-x:auto;
    overflow-y:visible;
    padding:4px var(--inner-pad) 6px 0;
    gap:6px;
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
  }
  .filter-chips-wrap::-webkit-scrollbar{display:none}
  .filter-chip{flex-shrink:0;padding:5px 13px;font-size:12px}

  /* Posts */
  .posts-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .main-content{padding-top:20px}
  .main-content .inner{padding:0 var(--inner-pad)}

  #btt{bottom:calc(var(--tab-h)+12px);right:14px}
}

@media (max-width:400px){
  .posts-grid{grid-template-columns:1fr}
}

/* ─── Search hint tags ──────────────── */
.search-hint-tag{
  display:inline-flex;align-items:center;
  padding:2px 9px;border-radius:12px;font-size:12px;font-weight:600;
  margin-left:4px;
}
.search-hint-tag--city{background:rgba(240,192,64,.18);color:var(--gold)}
.search-hint-tag--cat{background:rgba(232,67,63,.18);color:#ff7a77}