/* =========================================================
   Maida Chemical — Shared Modern Theme
   Reusable hero / stats / card / reveal / back-to-top system
   used across index, about, product & contact pages.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700;800&display=swap');

*{font-family:'Sarabun',sans-serif}

:root{
  --mc-navy:#0f172a;
  --mc-blue:#1a56db;
  --mc-blue-light:#3b82f6;
  --mc-purple:#a855f7;
  --mc-green:#16a34a;
}

body{scroll-behavior:smooth}

/* ---------- Hero ---------- */
.mc-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#0f172a 0%,#1e3a5f 55%,#1a56db 100%);
  min-height:260px;display:flex;align-items:center;
  margin-top:0;padding:0;
}
.mc-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.16}
.mc-hero-orb{position:absolute;border-radius:50%;filter:blur(6px);pointer-events:none;
  background:radial-gradient(circle,rgba(96,165,250,.55),transparent 70%);
  animation:mcFloat 9s ease-in-out infinite;
}
.mc-hero-orb.o1{width:180px;height:180px;top:-40px;right:8%;animation-delay:0s}
.mc-hero-orb.o2{width:120px;height:120px;bottom:-30px;left:6%;background:radial-gradient(circle,rgba(168,85,247,.5),transparent 70%);animation-delay:2.4s}
.mc-hero-content{position:relative;z-index:1;padding:48px 0 42px}
.mc-hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);
  border-radius:30px;padding:5px 16px;font-size:.8rem;color:rgba(255,255,255,.85);
  margin-bottom:14px;backdrop-filter:blur(4px);
}
.mc-hero-badge .dot{width:8px;height:8px;background:#4ade80;border-radius:50%;box-shadow:0 0 8px #4ade80;animation:mcBlink 1.8s ease-in-out infinite;display:inline-block}
.mc-hero h1{color:#fff;font-size:clamp(1.5rem,4vw,2.5rem);font-weight:800;line-height:1.3;margin-bottom:10px}
.mc-hero p{color:rgba(255,255,255,.75);font-size:1rem;max-width:600px;line-height:1.8;margin-bottom:0}
.mc-hero-line{width:60px;height:4px;background:linear-gradient(90deg,#3b82f6,#a855f7);border-radius:2px;margin-bottom:16px}
.mc-hero-crumb{font-size:.8rem;color:rgba(255,255,255,.55);margin-top:14px}
.mc-hero-crumb a{color:rgba(255,255,255,.8);text-decoration:none}
.mc-hero-crumb a:hover{color:#fff;text-decoration:underline}
.mc-hero-cta{display:inline-flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.mc-btn{
  display:inline-flex;align-items:center;gap:8px;padding:11px 24px;border-radius:50px;
  font-weight:700;font-size:.9rem;text-decoration:none;transition:transform .25s,box-shadow .25s;
}
.mc-btn-solid{background:linear-gradient(135deg,#3b82f6,#a855f7);color:#fff;box-shadow:0 8px 24px rgba(59,130,246,.35)}
.mc-btn-solid:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(59,130,246,.5);color:#fff}
.mc-btn-ghost{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.3);color:#fff}
.mc-btn-ghost:hover{background:rgba(255,255,255,.18);transform:translateY(-3px);color:#fff}

/* ---------- Section title ---------- */
.mc-sec-title{text-align:center;margin-bottom:36px}
.mc-sec-title .tag{
  display:inline-block;background:linear-gradient(135deg,#eff6ff,#f5f3ff);
  border:1px solid #c7d7fe;color:#3b5bdb;font-size:.75rem;font-weight:700;
  border-radius:20px;padding:4px 14px;margin-bottom:12px;letter-spacing:.04em;
}
.mc-sec-title h2{font-size:clamp(1.25rem,3vw,1.9rem);font-weight:800;color:#0f172a;margin-bottom:6px}
.mc-sec-title p{color:#64748b;font-size:.92rem;max-width:560px;margin:0 auto}

/* ---------- Stats strip ---------- */
.mc-stats{padding:46px 0;background:linear-gradient(135deg,#0f172a,#132a4d);position:relative;overflow:hidden}
.mc-stats::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 60% at 50% 0%,rgba(59,130,246,.18),transparent 70%)}
.mc-stat{text-align:center;color:#fff;position:relative;z-index:1}
.mc-stat .num{font-size:clamp(1.7rem,4vw,2.5rem);font-weight:800;background:linear-gradient(135deg,#60a5fa,#c084fc);-webkit-background-clip:text;background-clip:text;color:transparent}
.mc-stat .lbl{font-size:.82rem;color:rgba(255,255,255,.65);margin-top:4px}

/* ---------- Reveal on scroll ---------- */
.mc-reveal{animation:mcFadeIn .7s cubic-bezier(.16,1,.3,1) both}
.mc-reveal.d1{animation-delay:.08s}
.mc-reveal.d2{animation-delay:.16s}
.mc-reveal.d3{animation-delay:.24s}
.mc-reveal.d4{animation-delay:.32s}
@keyframes mcFadeIn{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion: reduce){.mc-reveal{animation:none;opacity:1;transform:none}}

/* ---------- Modern card + product image wrapper ---------- */
.mc-card{
  background:#fff;border-radius:16px;overflow:hidden;
  box-shadow:0 4px 20px rgba(15,23,42,.08);border:1px solid #f1f5f9;
  transition:transform .35s cubic-bezier(.16,1,.3,1),box-shadow .35s;
  height:100%;
}
.mc-card:hover{transform:translateY(-7px);box-shadow:0 18px 40px rgba(26,86,219,.16)}
.mc-card img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.mc-card:hover img{transform:scale(1.06)}

/* ---------- FAQ (accordion) ---------- */
.mc-faq .accordion-item{border:none;border-radius:14px!important;overflow:hidden;margin-bottom:14px;box-shadow:0 4px 18px rgba(15,23,42,.06)}
.mc-faq .accordion-button{font-weight:700;color:#0f172a;font-size:.96rem;padding:18px 22px;background:#fff}
.mc-faq .accordion-button:not(.collapsed){color:#1a56db;background:linear-gradient(135deg,#eff6ff,#f5f3ff)}
.mc-faq .accordion-button:focus{box-shadow:none}
.mc-faq .accordion-body{padding:4px 22px 20px;color:#475569;line-height:1.8;font-size:.9rem}

/* ---------- Back-to-top ---------- */
#mcTop{
  position:fixed;right:20px;bottom:96px;width:46px;height:46px;border-radius:50%;
  background:linear-gradient(135deg,#1a56db,#3b82f6);color:#fff;border:none;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(26,86,219,.4);
  opacity:0;pointer-events:none;transform:translateY(12px) scale(.85);
  transition:opacity .3s,transform .3s;z-index:9990;cursor:pointer;
}
#mcTop.show{opacity:1;pointer-events:auto;transform:translateY(0) scale(1)}
#mcTop:hover{filter:brightness(1.12)}
@media(max-width:480px){#mcTop{right:14px;bottom:80px;width:42px;height:42px}}

@keyframes mcFloat{0%,100%{transform:translateY(0) translateX(0)}50%{transform:translateY(-18px) translateX(10px)}}
@keyframes mcBlink{0%,100%{opacity:1}50%{opacity:.35}}

@media(max-width:576px){
  .mc-hero{min-height:210px}
  .mc-hero-content{padding:34px 0 30px}
}

/* ---------- Product grid hover (applies to plain <img> grids without touching markup) ---------- */
.mc-card-grid .col{transition:transform .35s cubic-bezier(.16,1,.3,1)}
.mc-card-grid .col img{border-radius:16px;box-shadow:0 4px 20px rgba(15,23,42,.08);transition:transform .4s ease,box-shadow .4s ease;cursor:pointer}
.mc-card-grid .col:hover{transform:translateY(-6px)}
.mc-card-grid .col:hover img{transform:scale(1.035);box-shadow:0 16px 36px rgba(26,86,219,.2)}

/* ---------- Download CTA button ---------- */
.dl-btn{
  display:inline-flex;align-items:center;padding:14px 36px;
  background:linear-gradient(135deg,#0f2c64,#1d4ed8);color:#fff;font-weight:700;font-size:1rem;
  border-radius:50px;text-decoration:none;box-shadow:0 6px 24px rgba(29,78,216,.35);
  transition:transform .2s,box-shadow .2s;position:relative;overflow:hidden;
}
.dl-btn:hover{transform:translateY(-3px);box-shadow:0 10px 32px rgba(29,78,216,.5);color:#fff}

/* ---------- Quick contact chips ---------- */
.mc-quick-contact{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;margin:28px 0}
.mc-chip{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid #eef1f6;border-radius:16px;padding:16px 18px;text-decoration:none;box-shadow:0 4px 16px rgba(15,23,42,.06);transition:transform .25s,box-shadow .25s}
.mc-chip:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(26,86,219,.15)}
.mc-chip .ic{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 4px 10px rgba(0,0,0,.12)}
.mc-chip .tt{font-weight:700;color:#0f172a;font-size:.88rem;display:block}
.mc-chip .sb{font-size:.76rem;color:#94a3b8;display:block}
.dl-btn::after{content:'';position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(120deg,transparent,rgba(255,255,255,.4),transparent);
  transform:skewX(-20deg);animation:mcShine 3.2s ease-in-out infinite}
@keyframes mcShine{0%{left:-60%}45%,100%{left:130%}}