/* ==========================================================
   TROPICA KING — style.css
   แก้สี/ฟอนต์หลักได้ที่ :root ด้านล่าง
   ========================================================== */
:root{
  --red-1:#c8002a; --red-2:#ff0000; --red-3:#ff2200;
  --cream:#FFF6DC;
  --brown:#5B3A29; --brown-dark:#46291b;
  --yellow:#FFE9A0; --orange:#F4A340;
  --text:#4a3426;
  --font:'Prompt',system-ui,sans-serif;
  --maxw:1180px;
  --header-h:76px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h)}
body{font-family:var(--font);background:var(--cream);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-title{font-size:clamp(26px,3.2vw,36px);font-weight:700;text-align:center;margin-bottom:40px;color:var(--brown)}
.section-title.light{color:#fff}
.btn{display:inline-block;background:var(--orange);color:var(--brown-dark);font-weight:600;font-size:15px;padding:12px 26px;border-radius:10px;transition:.2s}
.btn:hover{background:var(--brown);color:#fff;transform:translateY(-2px)}
.btn-dark{background:var(--brown);color:#fff;font-size:12px;padding:6px 14px;border-radius:4px}
.btn-dark:hover{background:var(--orange);color:var(--brown-dark)}

/* 1. HEADER */
.site-header{position:sticky;top:0;z-index:100;background:linear-gradient(90deg,var(--red-1) 0%,var(--red-2) 45%,var(--red-3) 100%);height:var(--header-h)}
.header-inner{max-width:1400px;margin:0 auto;height:100%;padding:0 40px;display:flex;align-items:center;justify-content:space-between}
.logo img{height:60px;width:auto}
.main-nav{display:flex;gap:56px}
.main-nav a{color:#fff;font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:.02em;transition:color .2s}
.main-nav a:hover{color:#ffd98a}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:8px;cursor:pointer}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px}

/* 2 & 4. HERO SLIDER (เต็มความกว้างจอ) */
.hero-slider{position:relative;width:100%;overflow:hidden;background:var(--yellow);touch-action:pan-y}
.slides{display:flex;transition:transform .6s ease;will-change:transform}
.slide{min-width:100%}
.slide img{width:100%;height:auto;aspect-ratio:1920/800;object-fit:cover}
.slider-2 .slide img{aspect-ratio:1920/700}
.slider-btn{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:none;background:rgba(255,246,220,.9);color:var(--brown);font-size:18px;cursor:pointer;z-index:2;transition:.2s}
.slider-btn:hover{background:#fff}
.slider-btn.prev{left:18px}.slider-btn.next{right:18px}
.slider-dots{position:absolute;bottom:14px;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:2}
.slider-dots button{width:10px;height:10px;border-radius:50%;border:none;background:rgba(91,58,41,.35);cursor:pointer;padding:0}
.slider-dots button.active{background:var(--brown);width:26px;border-radius:6px}

/* 3. PARTNER */
.partner-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.partner-text h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.35;color:var(--brown);margin-bottom:20px}
.partner-text p{font-size:17px;margin-bottom:24px}
.partner-img img{width:100%;border-radius:12px 40px 12px 12px;aspect-ratio:9/7;object-fit:cover}

/* 5. USP */
.usp{background:var(--brown)}
.usp-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.usp-card{background:var(--yellow);border-radius:18px;padding:26px 24px;color:var(--brown-dark)}
.usp-card h3{font-size:16px;font-weight:700;margin-bottom:14px;line-height:1.35}
.usp-card li{font-size:14px;padding-left:16px;position:relative;margin-bottom:8px}
.usp-card li::before{content:"•";position:absolute;left:0;color:var(--orange);font-weight:700}

/* 6. OUR PRODUCT + CTA */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.product-img{background:var(--yellow);border-radius:50% 40% 50% 40%/45% 50% 45% 50%;padding:14px;margin-bottom:14px}
.product-img img{width:100%;aspect-ratio:1/1;object-fit:contain;border-radius:12px}
.product-name{font-size:13px;font-weight:600;color:var(--brown);margin-bottom:10px;min-height:42px}
.cta-box{margin-top:56px;background:var(--brown);color:#fff;border-radius:18px;padding:40px 24px;text-align:center}
.cta-box h3{font-size:clamp(20px,2.4vw,26px);margin-bottom:8px}
.cta-box p{margin-bottom:20px;opacity:.9}

/* 7. RECIPES */
.recipes{background:var(--brown)}
.recipe-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.recipe-card{text-align:center;color:#fff;font-weight:600;font-size:14px;transition:transform .2s}
.recipe-card:hover{transform:translateY(-6px)}
.recipe-img{border:5px solid var(--cream);border-radius:26px;overflow:hidden;margin-bottom:14px}
.recipe-img img{width:100%;aspect-ratio:1/1;object-fit:cover}

/* FOOTER */
.site-footer{background:#2b2018;color:rgba(255,246,220,.75);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:40px;padding-bottom:36px}
.footer-logo{height:56px;width:auto;border-radius:6px;margin-bottom:14px}
.footer-brand p{font-size:14px;max-width:320px}
.site-footer h4{color:var(--cream);margin-bottom:14px;font-size:15px}
.site-footer li{font-size:14px;margin-bottom:8px}
.site-footer a:hover{color:var(--orange)}
.footer-bottom{border-top:1px solid rgba(255,246,220,.12);padding:18px 0;font-size:13px;color:rgba(255,246,220,.5)}

/* RESPONSIVE */
@media (max-width:980px){
  .partner-grid{grid-template-columns:1fr}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .recipe-grid{grid-template-columns:1fr;max-width:420px;margin:0 auto}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  :root{--header-h:64px}
  .header-inner{padding:0 20px}
  .logo img{height:50px}
  .nav-toggle{display:flex}
  .main-nav{position:fixed;top:var(--header-h);left:0;right:0;background:var(--red-1);flex-direction:column;gap:0;padding:8px 20px 20px;transform:translateY(-120%);transition:transform .3s;z-index:-1}
  .main-nav.open{transform:none}
  .main-nav a{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.2);font-size:16px}
  .section{padding:52px 0}
  /* สไลด์บนมือถือสูงขึ้นเล็กน้อยให้ภาพเต็มตา */
  .slide img,.slider-2 .slide img{aspect-ratio:4/3}
  .slider-btn{width:36px;height:36px;font-size:15px}
  .slider-btn.prev{left:8px}.slider-btn.next{right:8px}
  /* USP เลื่อนซ้าย-ขวาอ่านง่ายบนมือถือ */
  .usp-row{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:16px;padding-bottom:10px;-webkit-overflow-scrolling:touch}
  .usp-card{min-width:82%;scroll-snap-align:center}
  .product-grid{gap:16px}
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}