/* ===== Base ===== */
:root {
  --navy: #0d2c4b;
  --navy-dark: #081b30;
  --blue: #1e6fd9;
  --blue-dark: #155bb0;
  --steel: #4a5a6a;
  --steel-light: #eef1f4;
  --accent: #e8871e;
  --accent-dark: #c46e12;
  --line-green: #06c755;
  --text-dark: #1c2b3a;
  --text-muted: #5a6b7a;
  --white: #ffffff;
  --border: #dfe4e8;
  --radius: 8px;
  --max-width: 1200px;
  font-size: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Prompt', 'Kanit', system-ui, sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.7;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section { padding: 60px 0; }
.section-alt { background: var(--steel-light); }

.section-title {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--navy);
}

.section-sub {
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 620px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: var(--radius);
  font-weight: 500;
  cursor: pointer;
  border: none;
  font-size: 0.95rem;
  transition: background 0.15s ease, transform 0.1s ease;
}
.btn-primary { background: var(--accent); color: var(--white); }
.btn-primary:hover { background: var(--accent-dark); }
.btn-outline { background: transparent; color: var(--white); border: 1px solid rgba(255,255,255,0.6); }
.btn-outline:hover { background: rgba(255,255,255,0.12); }
.btn-outline-dark { background: transparent; color: var(--navy); border: 1px solid var(--navy); }
.btn-outline-dark:hover { background: var(--navy); color: var(--white); }

/* ===== Header ===== */
.site-header { background: var(--white); position: sticky; top: 0; z-index: 100; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }

.topbar { padding: 14px 0; }
.topbar .container { display: flex; align-items: center; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.2rem; color: var(--navy); flex-shrink: 0; }
.logo .logo-mark {
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--navy); color: var(--white);
  display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
}
.logo .logo-sub { display: block; font-size: 0.72rem; font-weight: 400; color: var(--text-muted); }

.search-box { flex: 1; max-width: 420px; position: relative; }
.search-box input {
  width: 100%; padding: 10px 44px 10px 16px; border-radius: 999px;
  border: 1px solid var(--border); font-family: inherit; font-size: 0.9rem; background: var(--steel-light);
}
.search-box .search-ic {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  width: 32px; height: 32px; border-radius: 50%; background: var(--navy); color: var(--white);
  display: flex; align-items: center; justify-content: center; font-size: 0.8rem;
}

.chat-pill {
  display: flex; align-items: center; gap: 6px; padding: 9px 18px; border-radius: 999px;
  color: var(--white); font-size: 0.85rem; font-weight: 600; white-space: nowrap; flex-shrink: 0;
}
.chat-pill.line { background: var(--line-green); }
.chat-pill.messenger { background: var(--blue); }

.lang-switch { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; font-weight: 600; color: var(--text-muted); flex-shrink: 0; }
.lang-switch a { color: var(--text-muted); padding: 4px 2px; }
.lang-switch a.active { color: var(--blue); }
.lang-switch span { color: var(--border); }

.navbar { background: var(--steel-light); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 52px; }
.nav-links { display: flex; gap: 26px; font-size: 0.9rem; font-weight: 500; }
.nav-links a { color: var(--text-dark); padding: 4px 0; border-bottom: 2px solid transparent; }
.nav-links a:hover, .nav-links a.active { color: var(--blue); border-bottom-color: var(--blue); }
.nav-phone { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--accent); font-size: 1rem; }
.nav-phone .ph-ic {
  width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: var(--white);
  display: flex; align-items: center; justify-content: center; font-size: 0.8rem; flex-shrink: 0;
}
.nav-toggle { display: none; }

/* ===== Hero (photo collage + overlay headline, like reference site) ===== */
.hero {
  position: relative;
  min-height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; object-position: center; display: block; }
.hero-overlay { position: absolute; inset: 0; background: rgba(8,27,48,0.55); z-index: 1; }
.hero-content { position: relative; z-index: 2; padding: 50px 20px; }
.hero-content h1 { font-size: 1.9rem; font-weight: 700; line-height: 1.5; margin-bottom: 26px; text-shadow: 0 2px 8px rgba(0,0,0,0.35); }
.hero-cta-pill {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--blue); color: var(--white); font-weight: 600; font-size: 1rem;
  padding: 14px 30px; border-radius: 999px; box-shadow: 0 6px 18px rgba(30,111,217,0.4);
}
.hero-cta-pill .bubble-ic {
  width: 26px; height: 26px; border-radius: 50%; background: var(--white); color: var(--blue);
  display: flex; align-items: center; justify-content: center; font-size: 0.8rem; flex-shrink: 0;
}

/* ===== Feature strip (3 overlapping icon cards) ===== */
.feature-strip { position: relative; z-index: 3; margin-top: -46px; margin-bottom: 40px; }
.feature-strip .container { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card {
  background: var(--white); border: 1px solid var(--border); border-radius: 10px;
  padding: 22px 16px; text-align: center; box-shadow: 0 8px 20px rgba(13,44,75,0.08);
}
.feature-card .f-icon {
  width: 54px; height: 54px; border-radius: 50%; margin: 0 auto 12px; background: var(--steel-light);
  color: var(--blue); display: flex; align-items: center; justify-content: center; font-size: 1.5rem;
}
.feature-card h3 { font-size: 1rem; color: var(--navy); margin-bottom: 4px; }
.feature-card .en { font-size: 0.76rem; color: var(--text-muted); line-height: 1.5; }

/* ===== Cards (services / features) ===== */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.card:hover { box-shadow: 0 8px 24px rgba(13,44,75,0.08); transform: translateY(-2px); }
.card-icon {
  width: 46px; height: 46px; border-radius: var(--radius);
  background: #fdf1e2; color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; margin-bottom: 16px; font-weight: 700;
}
.card h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--navy); }
.card p { color: var(--text-muted); font-size: 0.92rem; }

/* ===== Product grid ===== */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--white);
}
.product-thumb {
  aspect-ratio: 4/3; background: var(--steel-light);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 0.85rem;
}
.product-body { padding: 18px; }
.product-category { font-size: 0.75rem; color: var(--accent); font-weight: 600; text-transform: uppercase; letter-spacing: 0.4px; }
.product-body h3 { font-size: 1.05rem; margin: 6px 0 8px; color: var(--navy); }
.product-meta { display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 14px; }
.product-price { font-weight: 700; color: var(--navy); font-size: 1.05rem; margin-bottom: 14px; }

.filter-bar { display: flex; gap: 10px; margin-bottom: 32px; flex-wrap: wrap; }
.filter-bar a {
  padding: 8px 16px; border-radius: 999px; border: 1px solid var(--border);
  font-size: 0.88rem; color: var(--text-dark);
}
.filter-bar a.active, .filter-bar a:hover { background: var(--navy); color: var(--white); border-color: var(--navy); }

/* ===== Portfolio ===== */
.portfolio-item {
  display: grid; grid-template-columns: 1fr 1.2fr; gap: 28px;
  border: 1px solid var(--border); border-radius: 12px; padding: 24px; margin-bottom: 20px;
  align-items: center;
}
.portfolio-images { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.portfolio-images div {
  aspect-ratio: 1; background: var(--steel-light); border-radius: 8px;
  display: flex; align-items: center; justify-content: center; font-size: 0.75rem; color: var(--text-muted);
}
.portfolio-item h3 { color: var(--navy); margin-bottom: 10px; font-size: 1.1rem; }
.portfolio-item .label { font-size: 0.8rem; font-weight: 600; color: var(--accent); text-transform: uppercase; margin-top: 12px; }

/* ===== Testimonial ===== */
.testimonial {
  background: var(--white); border: 1px solid var(--border); border-radius: 12px;
  padding: 26px; font-style: normal;
}
.testimonial p { color: var(--text-dark); margin-bottom: 14px; }
.testimonial .author { font-size: 0.88rem; font-weight: 600; color: var(--navy); }
.testimonial .role { font-size: 0.82rem; color: var(--text-muted); }

/* ===== Contact form ===== */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.88rem; font-weight: 500; margin-bottom: 6px; color: var(--navy); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: var(--radius);
  font-family: inherit; font-size: 0.95rem;
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-error { color: #c0392b; font-size: 0.82rem; margin-top: 4px; }
.alert { padding: 14px 18px; border-radius: var(--radius); margin-bottom: 20px; font-size: 0.9rem; }
.alert-success { background: #e7f6ec; color: #1c7a3c; border: 1px solid #bfe6cb; }
.alert-error { background: #fdecea; color: #c0392b; border: 1px solid #f5c6c1; }

.contact-info-item { display: flex; gap: 14px; margin-bottom: 20px; }
.contact-info-item .ic {
  width: 40px; height: 40px; border-radius: var(--radius); background: var(--steel-light);
  display: flex; align-items: center; justify-content: center; color: var(--navy); flex-shrink: 0; font-weight: 700;
}
.map-placeholder {
  aspect-ratio: 16/9; background: var(--steel-light); border-radius: 12px;
  display: flex; align-items: center; justify-content: center; color: var(--text-muted); margin-top: 20px;
}

/* ===== Footer ===== */
.site-footer { background: var(--navy-dark); color: #b9c6d3; padding: 50px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 32px; margin-bottom: 32px; }
.footer-grid h4 { color: var(--white); font-size: 0.95rem; margin-bottom: 14px; }
.footer-grid li { margin-bottom: 8px; font-size: 0.88rem; }
.footer-grid a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; font-size: 0.82rem; text-align: center; color: #8a99a8; }

/* ===== Two-column home layout: product feed + sidebar ===== */
.home-columns { display: grid; grid-template-columns: 1.7fr 1fr; gap: 28px; align-items: start; }

.feed-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.feed-head h2 { font-size: 1.2rem; color: var(--navy); font-weight: 600; }
.feed-arrows { display: flex; gap: 8px; }
.feed-arrows span {
  width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; font-size: 0.8rem; color: var(--text-muted);
}

.mini-product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.mini-card { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: var(--white); }
.mini-thumb {
  aspect-ratio: 4/3; background: var(--steel-light); color: var(--text-muted);
  display: flex; align-items: center; justify-content: center; font-size: 0.75rem;
}
.mini-body { padding: 12px; }
.mini-body h4 { font-size: 0.88rem; color: var(--navy); margin-bottom: 4px; }
.mini-spec { font-size: 0.74rem; color: var(--text-muted); line-height: 1.5; margin-bottom: 6px; }
.mini-price { font-size: 0.8rem; margin-bottom: 8px; }
.mini-price b { color: var(--accent); }
.mini-actions { display: flex; gap: 6px; }
.mini-actions .btn-mini {
  flex: 1; text-align: center; padding: 7px 6px; border-radius: 6px; font-size: 0.75rem; font-weight: 600;
}
.mini-actions .btn-mini.ghost { border: 1px solid var(--blue); color: var(--blue); }
.mini-actions .btn-mini.solid { background: var(--accent); color: var(--white); }

/* Sidebar: repair categories box */
.side-box { border-radius: 10px; margin-bottom: 20px; overflow: hidden; }
.repair-box { background: var(--navy); color: var(--white); padding: 20px; }
.repair-box h3 { font-size: 1.05rem; margin-bottom: 12px; }
.repair-box ul { columns: 2; gap: 16px; font-size: 0.85rem; line-height: 2; color: #cfe0f0; }

/* Sidebar: quick quote form */
.quote-box { background: var(--white); border: 1px solid var(--border); padding: 20px; }
.quote-box h3 { font-size: 1rem; color: var(--navy); margin-bottom: 14px; }
.quote-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 8px; }
.quote-box input, .quote-box select, .quote-box textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 6px;
  font-family: inherit; font-size: 0.85rem; margin-bottom: 8px;
}
.quote-box textarea { min-height: 70px; resize: vertical; }
.quote-checkbox { display: flex; align-items: center; gap: 6px; font-size: 0.78rem; color: var(--text-muted); margin-bottom: 10px; }
.quote-submit {
  width: 100%; background: var(--accent); color: var(--white); border: none; padding: 11px; border-radius: 6px;
  font-weight: 600; font-size: 0.9rem; cursor: pointer; margin-bottom: 8px;
}
.quote-line-note {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  font-size: 0.78rem; color: var(--text-muted);
}

/* Before/After strip */
.ba-strip-head { font-size: 1rem; font-weight: 600; color: var(--navy); margin-bottom: 10px; }
.ba-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.ba-thumb { position: relative; aspect-ratio: 1; border-radius: 8px; overflow: hidden; background: var(--steel-light); }
.ba-thumb span {
  position: absolute; bottom: 6px; left: 6px; background: rgba(8,27,48,0.7); color: var(--white);
  font-size: 0.68rem; padding: 2px 8px; border-radius: 4px;
}

/* Floating chat buttons */
.floating-chat { position: fixed; right: 20px; bottom: 24px; display: flex; flex-direction: column; gap: 10px; z-index: 200; }
.floating-chat a {
  width: 52px; height: 52px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  color: var(--white); font-size: 1.4rem; box-shadow: 0 4px 14px rgba(0,0,0,0.25);
}
.floating-chat .fc-line { background: var(--line-green); }
.floating-chat .fc-messenger { background: var(--blue); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .card-grid, .product-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-wrap { grid-template-columns: 1fr; }
  .portfolio-item { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .search-box { display: none; }
  .home-columns { grid-template-columns: 1fr; }
  .feature-strip .container { grid-template-columns: 1fr; }
  .feature-strip { margin-top: 20px; }
  .mini-product-grid { grid-template-columns: repeat(2, 1fr); }
  .ba-strip { grid-template-columns: repeat(2, 1fr); }
  .repair-box ul { columns: 1; }
}
@media (max-width: 560px) {
  .card-grid, .product-grid, .footer-grid, .mini-product-grid, .ba-strip { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 1.3rem; }
  .topbar .container { flex-wrap: wrap; }
  .chat-pill span.chat-label { display: none; }
}