/* ===================================
   Ladda Swiss House — style.css
   =================================== */

/* === RESET ======================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: "Google Sans", sans-serif;
  font-size: 18px;
  line-height: 1.7;
  color: #222;
  background: #fff;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
ul { list-style: none; }

/* === VARIABLES ==================== */
:root {
  --red:      #c5191b;
  --i18n-read-more: "▼ อ่านเพิ่ม";
  --i18n-show-less: "▲ ซ่อน";
  --dark:     #053c5e;
  --text:     #222;
  --muted:    #666;
  --border:   #e5e5e7;
  --bg-light: #f8f8fa;
  --max-w:    1050px;
  --radius:   12px;
  --shadow:   0 2px 12px rgba(0,0,0,0.08);
}

/* === CONTAINER ==================== */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* === TYPOGRAPHY =================== */
h1 { font-size: clamp(2.2rem, 6vw, 4.2rem); font-weight: 700; line-height: 1.15; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); font-weight: 700; line-height: 1.25; }
h3 { font-size: 1.05rem; font-weight: 700; }
p  { font-size: 0.9375rem; color: #444; }

/* === HEADER ======================= */
.site-header {
  position: sticky; top: 0; z-index: 200;
  background: #fff;
  border-bottom: 1px solid var(--border);
  height: 64px;
}
.site-header .container {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.logo img { height: 44px; width: auto; }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav a {
  font-size: 0.875rem; font-weight: 600; color: #333;
  transition: color .18s;
}
.nav a:hover { color: var(--red); }

.lang-btn {
  background: none;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #555;
  cursor: pointer;
  letter-spacing: .04em;
  transition: border-color .18s, color .18s, background .18s;
  flex-shrink: 0;
}
.lang-btn:hover {
  border-color: var(--red);
  color: var(--red);
}

.nav-toggle {
  display: none; background: none; border: none;
  width: 28px; height: 20px; position: relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block; position: absolute;
  width: 100%; height: 2px; background: #333;
  transition: .25s;
}
.nav-toggle span { top: 9px; }
.nav-toggle span::before { content: ''; top: -8px; }
.nav-toggle span::after  { content: ''; top: 8px; }
.nav-toggle.open span   { background: transparent; }
.nav-toggle.open span::before { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span::after  { transform: translateY(-8px) rotate(-45deg); }

/* === MOBILE NAV =================== */
@media (max-width: 640px) {
  .nav-toggle { display: block; }
  .nav {
    display: none; position: absolute;
    top: 64px; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    flex-direction: column; gap: 0;
    padding: 8px 0;
    box-shadow: 0 8px 24px rgba(0,0,0,.08);
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 24px; width: 100%; }
}

/* === HERO ========================= */
.hero {
  position: relative; min-height: 90vh;
  display: flex; align-items: center;
  color: #fff; text-align: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(0,0,0,.5);
}
.hero .container {
  position: relative; z-index: 1;
  padding-top: 5rem; padding-bottom: 4rem;
}
.hero h1 {
  text-decoration: underline;
  text-underline-offset: 6px;
  text-decoration-color: #f5cf00;
  margin-bottom: 1.25rem;
}
.hero-subtitle {
  font-size: clamp(0.875rem, 2vw, 1rem);
  max-width: 580px; margin: 0 auto 2.25rem;
  color: #fff;
  line-height: 1.8;
}
.btn-video {
  display: inline-flex; align-items: center; gap: 8px;
  background: none; border: 2px solid rgba(255,255,255,.7);
  color: #fff; padding: 10px 24px; border-radius: 100px;
  font-size: 0.9rem; font-weight: 600;
  transition: background .2s, border-color .2s;
  margin-bottom: 2rem;
}
.btn-video:hover { background: rgba(255,255,255,.15); border-color: #fff; }
.btn-video svg { width: 18px; height: 18px; }

.hero-cta {
  display: block;
  background: var(--red); color: #fff;
  padding: 13px 32px; border-radius: 8px;
  font-size: 0.95rem; font-weight: 700;
  width: fit-content; margin: 0 auto 1.75rem;
  transition: opacity .18s;
}
.hero-cta:hover { opacity: .88; }

.social-proof {
  display: flex; align-items: center; justify-content: center;
  gap: 12px; font-size: 0.8rem; opacity: .9;
}
.proof-avatars { display: flex; }
.proof-avatars img {
  width: 32px; height: 32px; border-radius: 50%;
  border: 2px solid #fff;
  margin-left: -8px; object-fit: cover;
}
.proof-avatars img:first-child { margin-left: 0; }
.proof-stars { color: #f5cf00; letter-spacing: 1px; font-size: 0.8rem; }

/* === SECTION BASE ================= */
.section {
  padding: clamp(3rem, 7vw, 5.5rem) 0;
}
.section-title {
  text-align: center; margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

/* === TWO-COL LAYOUT =============== */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.two-col.reverse { direction: rtl; }
.two-col.reverse > * { direction: ltr; }
.two-col img { border-radius: var(--radius); width: 100%; object-fit: cover; }

@media (max-width: 680px) {
  .two-col, .two-col.reverse { grid-template-columns: 1fr; direction: ltr; }
  .two-col.reverse > * { direction: ltr; }
}

/* === HOUSE SECTION ================ */
.house-text h2 { color: var(--red); margin-bottom: 1rem; }
.house-text p { margin-bottom: 1.25rem; line-height: 1.75; }
.btn-primary {
  display: inline-block;
  background: var(--red); color: #fff;
  padding: 11px 22px; border-radius: 8px;
  font-size: 0.875rem; font-weight: 700;
  transition: opacity .18s;
}
.btn-primary:hover { opacity: .88; }

/* === ABOUT SECTION ================ */
.section-about { background: var(--bg-light); }
.about-text h2 { margin-bottom: 1rem; }
.about-text p { margin-bottom: 1rem; line-height: 1.8; }

/* === REVIEW CARDS ================= */
.section-reviews { background: #fff; }
.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  /* stretch = cards in same row share height → visually balanced */
  align-items: stretch;
}
@media (max-width: 860px) { .review-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 540px) { .review-grid { grid-template-columns: 1fr; } }

.review-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 16px 14px;
  box-shadow: var(--shadow); display: flex; flex-direction: column;
  cursor: pointer; transition: box-shadow .2s, transform .18s;
}
.review-card:hover { box-shadow: 0 6px 24px rgba(0,0,0,.12); transform: translateY(-2px); }
.review-card.span-2 {
  grid-column: span 2;
  background: linear-gradient(135deg,#fff 80%,#fdf5f5 100%);
  border-color: #e0c8c8;
}
@media (max-width: 860px) { .review-card.span-2 { grid-column: span 2; } }
@media (max-width: 540px) { .review-card.span-2 { grid-column: span 1; } }

.review-header { display:flex; align-items:center; gap:10px; margin-bottom:10px; }
.review-avatar, .review-avatar-fallback {
  width:42px; height:42px; border-radius:50%; flex-shrink:0;
}
.review-avatar { object-fit:cover; background:#eee; }
.review-avatar-fallback {
  background:var(--red); color:#fff;
  display:flex; align-items:center; justify-content:center;
  font-weight:700; font-size:1rem;
}
.review-meta { min-width:0; }
.review-name { font-weight:700; font-size:0.85rem; color:#111; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.review-date { font-size:0.72rem; color:#bbb; margin-top:2px; }
.review-stars { color:#f4b400; font-size:0.9rem; letter-spacing:2px; margin-bottom:8px; }
.review-text-wrap { font-size:0.85rem; color:#444; line-height:1.65; flex:1; }
.review-text-inner {
  display:-webkit-box; -webkit-line-clamp:4; -webkit-box-orient:vertical; overflow:hidden;
}
.review-card.span-2 .review-text-inner { -webkit-line-clamp:5; }
.review-card.expanded .review-text-inner { display:block; overflow:visible; -webkit-line-clamp:unset; }
.review-expand-btn {
  display:inline-block; font-size:0.7rem; color:var(--red);
  font-weight:700; margin-top:5px; user-select:none;
}
.review-expand-btn.hidden { display:none; }
.review-card:not(.expanded) .review-expand-btn::after { content: var(--i18n-read-more); }
.review-card.expanded       .review-expand-btn::after { content: var(--i18n-show-less); }
.review-source {
  display:flex; align-items:center; gap:5px;
  margin-top:10px; padding-top:10px; border-top:1px solid #f2f2f2;
  font-size:0.7rem; color:#ccc;
}
.review-source img { width:13px; height:13px; }

/* === GALLERY ====================== */
.gallery-tabs { display:flex; gap:8px; flex-wrap:wrap; margin-bottom:14px; }
.gallery-tab {
  background:#f2f2f4; border:1.5px solid transparent; border-radius:100px;
  padding:6px 16px; font-size:0.8rem; font-weight:600; color:#555;
  transition:all .18s; white-space:nowrap;
  display:flex; align-items:center; gap:5px;
}
.gallery-tab:hover { border-color:var(--red); color:var(--red); background:#fff5f5; }
.gallery-tab.active { background:var(--red); color:#fff; border-color:var(--red); }
.tab-count { font-size:0.68rem; background:rgba(0,0,0,.08); border-radius:100px; padding:1px 6px; }
.gallery-tab.active .tab-count { background:rgba(255,255,255,.25); }
.gallery-panel { display:none; }
.gallery-panel.active { display:block; }

.gallery-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:5px;
}
@media (max-width:900px) { .gallery-grid { grid-template-columns:repeat(3,1fr); } }
@media (max-width:540px) {
  .gallery-grid { grid-template-columns:repeat(2,1fr); }
  .gallery-tabs { gap:5px; }
  .gallery-tab { font-size:0.75rem; padding:5px 12px; }
  .tab-count { display:none; }
}

.gallery-item {
  margin:0; overflow:hidden; border-radius:6px;
  aspect-ratio:1/1; cursor:pointer; position:relative; background:#f0f0f0;
}
.gallery-item img { width:100%; height:100%; object-fit:cover; transition:transform .32s, filter .32s; }
.gallery-item:hover img { transform:scale(1.07); filter:brightness(.8); }
.gallery-item::after {
  content:''; position:absolute; inset:0;
  background:rgba(0,0,0,0); transition:background .24s; pointer-events:none;
}
.gallery-item:hover::after { background:rgba(0,0,0,.18); }

/* === LIGHTBOX ===================== */
.lightbox {
  position:fixed; inset:0; z-index:9999;
  background:rgba(0,0,0,.93);
  display:none; align-items:center; justify-content:center; flex-direction:column;
}
.lightbox.open { display:flex; }
.lightbox-img {
  max-width:min(88vw,860px); max-height:80vh;
  object-fit:contain; border-radius:8px;
  box-shadow:0 12px 48px rgba(0,0,0,.6);
  display:block;
}
.lightbox-counter { color:rgba(255,255,255,.5); font-size:.78rem; margin-top:10px; }
.lightbox-nav {
  position:fixed; top:50%; transform:translateY(-50%);
  background:rgba(255,255,255,.12); border:none; color:#fff;
  font-size:1.4rem; width:44px; height:60px; border-radius:8px;
  display:flex; align-items:center; justify-content:center;
  transition:background .2s; z-index:10000;
}
.lightbox-nav:hover { background:rgba(255,255,255,.28); }
.lightbox-prev { left:14px; }
.lightbox-next { right:14px; }
.lightbox-close {
  position:fixed; top:12px; right:16px;
  background:rgba(255,255,255,.08); border:none; color:rgba(255,255,255,.75);
  font-size:1.5rem; border-radius:6px; padding:4px 10px;
  transition:background .2s; z-index:10000;
}
.lightbox-close:hover { background:rgba(255,255,255,.18); color:#fff; }

/* === TARGET AUDIENCE ============== */
.target-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:20px;
}
@media (max-width:860px) { .target-grid { grid-template-columns:repeat(2,1fr); } }
@media (max-width:480px) { .target-grid { grid-template-columns:1fr 1fr; gap:12px; } }

.target-card { text-align:center; padding:20px 12px; }
.target-icon {
  width:56px; height:56px; margin:0 auto 12px;
  background:var(--bg-light); border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:1.5rem;
}
.target-card h3 { font-size:0.9rem; margin-bottom:6px; color:var(--dark); }
.target-card p { font-size:0.8rem; color:#666; line-height:1.6; }

/* === FOOTER ======================= */
.site-footer {
  background:#111; color:#aaa;
  padding:2rem 0;
  font-size:0.8rem;
}
.site-footer .container {
  display:flex; align-items:center; justify-content:space-between;
  flex-wrap:wrap; gap:12px;
}
.footer-social { display:flex; gap:12px; }
.footer-social a {
  width:36px; height:36px; border-radius:50%;
  background:rgba(255,255,255,.08);
  display:flex; align-items:center; justify-content:center;
  transition:background .18s;
}
.footer-social a:hover { background:rgba(255,255,255,.18); }
.footer-social svg { width:18px; height:18px; fill:#fff; }

/* === VIDEO POPUP ================== */
.popup {
  position:fixed; inset:0; z-index:10000;
  display:none; align-items:center; justify-content:center;
}
.popup.open { display:flex; }
.popup-backdrop {
  position:absolute; inset:0;
  background:rgba(0,0,0,.85); cursor:pointer;
}
.popup-inner {
  position:relative; z-index:1;
  max-width:min(90vw,800px); width:100%;
}
.popup-close {
  position:absolute; top:-40px; right:0;
  background:none; border:none; color:#fff;
  font-size:1.5rem; opacity:.75;
}
.popup-close:hover { opacity:1; }
.popup-inner video {
  width: auto;
  max-width: 100%;
  max-height: 78vh;
  border-radius: 8px;
  display: block;
  margin: 0 auto;
}
.popup-inner img { max-height:80vh; border-radius:8px; margin:auto; display:block; }

/* === CHAT BUTTON ================== */
.chat-btn {
  position:fixed; bottom:24px; right:24px; z-index:9999;
  width:56px; height:56px; border-radius:50%;
  background:var(--red); color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 4px 16px rgba(197,25,27,.4);
  cursor:pointer; transition:transform .2s, box-shadow .2s;
}
.chat-btn:hover { transform:scale(1.05); box-shadow:0 6px 20px rgba(197,25,27,.5); }
.chat-btn svg { width:26px; height:26px; transition:opacity .3s, transform .3s; }
.chat-btn .icon-chat { opacity:1; transform:scale(1); }
.chat-btn .icon-close { position:absolute; opacity:0; transform:scale(.5) rotate(90deg); }
.chat-btn.open .icon-chat  { opacity:0; transform:scale(.5) rotate(-90deg); }
.chat-btn.open .icon-close { opacity:1; transform:scale(1) rotate(0deg); }

.chat-panel {
  position:fixed; bottom:92px; right:24px; z-index:9998;
  display:flex; flex-direction:column; gap:10px;
  pointer-events:none; opacity:0;
  transform:translateY(10px) scale(.95);
  transition:opacity .25s, transform .25s;
}
.chat-panel.open { opacity:1; transform:none; pointer-events:auto; }
.chat-panel li a {
  display:flex; align-items:center; gap:10px;
  background:#fff; border-radius:100px;
  padding:8px 16px 8px 8px;
  font-size:0.85rem; font-weight:600;
  box-shadow:0 4px 16px rgba(0,0,0,.12);
  white-space:nowrap;
  transition:box-shadow .18s;
}
.chat-panel li a:hover { box-shadow:0 6px 20px rgba(0,0,0,.18); }
.chat-panel li a svg { width:40px; height:40px; flex-shrink:0; }

/* === SEPARATOR ==================== */
hr.divider {
  border:none; border-top:1px solid var(--border);
  margin:0;
}