/* ============================================
   YouCanBe Muaythai School - Main Stylesheet
   主色：薄荷綠 / 暖黃 / 珊瑚粉 / 奶白
   風格：兒童可愛 + 專業泰拳學院
   ============================================ */

:root{
  --color-mint:#7BC9C0;
  --color-mint-dark:#5AAFA6;
  --color-yellow:#F5D76E;
  --color-yellow-dark:#E8C547;
  --color-coral:#FF9B85;
  --color-coral-dark:#FF7F66;
  --color-cream:#FFF8E7;
  --color-purple:#C9A0DC;
  --color-blue:#A8D8EA;
  --color-text:#2E3A45;
  --color-text-light:#6B7785;
  --color-white:#ffffff;
  --color-shadow:rgba(123,201,192,.25);

  --font-heading:"Fredoka","Noto Sans HK",sans-serif;
  --font-body:"Noto Sans TC","Noto Sans HK",sans-serif;

  --radius-sm:12px;
  --radius-md:20px;
  --radius-lg:32px;
  --radius-pill:999px;

  --shadow-sm:0 4px 12px rgba(46,58,69,.08);
  --shadow-md:0 8px 24px rgba(46,58,69,.12);
  --shadow-lg:0 16px 48px rgba(46,58,69,.16);
  --shadow-glow:0 0 32px var(--color-shadow);

  --transition:.35s cubic-bezier(.34,1.56,.64,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  font-size:16px;line-height:1.7;
  color:var(--color-text);background:var(--color-cream);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}

h1,h2,h3,h4,h5,h6{
  font-family:var(--font-heading);font-weight:700;
  line-height:1.25;color:var(--color-text);letter-spacing:.5px;
}
h1{font-size:clamp(2rem,5vw,3.5rem)}
h2{font-size:clamp(1.75rem,3.5vw,2.75rem)}
h3{font-size:clamp(1.35rem,2.5vw,1.85rem)}
p{margin-bottom:1rem}

.text-mint{color:var(--color-mint-dark)}
.text-coral{color:var(--color-coral-dark)}
.text-yellow{color:var(--color-yellow-dark)}

.container{width:min(100% - 2.5rem,var(--container));margin-inline:auto}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.95rem 2rem;border-radius:var(--radius-pill);
  font-family:var(--font-heading);font-weight:600;font-size:1rem;
  transition:var(--transition);position:relative;overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.btn-primary{background:linear-gradient(135deg,var(--color-coral),var(--color-yellow));color:#fff}
.btn-primary:hover{transform:translateY(-3px) scale(1.03);box-shadow:var(--shadow-md)}
.btn-secondary{background:var(--color-mint);color:#fff}
.btn-secondary:hover{background:var(--color-mint-dark);transform:translateY(-3px)}
.btn-outline{border:3px solid var(--color-mint);color:var(--color-mint-dark);background:#fff}
.btn-outline:hover{background:var(--color-mint);color:#fff}
.btn-whatsapp{background:#25D366;color:#fff}
.btn-whatsapp:hover{background:#1da851;transform:scale(1.05)}

/* Header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,248,231,.92);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:var(--transition);padding:.75rem 0;
}
.site-header.scrolled{box-shadow:var(--shadow-sm);padding:.5rem 0}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:2rem}
.logo{display:flex;align-items:center;gap:.75rem;font-family:var(--font-heading);font-weight:700;font-size:1.25rem}
.logo img{height:60px;transition:var(--transition)}
.logo:hover img{transform:rotate(-8deg) scale(1.05)}
.main-nav ul{display:flex;gap:1.75rem;align-items:center}
.main-nav a{font-family:var(--font-heading);font-weight:500;position:relative;padding:.5rem .25rem;color:var(--color-text)}
.main-nav a::before{
  content:"";position:absolute;bottom:0;left:50%;
  width:0;height:3px;border-radius:3px;background:var(--color-coral);
  transition:var(--transition);transform:translateX(-50%);
}
.main-nav a:hover::before,.main-nav a.active::before{width:100%}
.main-nav a:hover{color:var(--color-coral-dark)}
.nav-toggle{display:none;font-size:1.75rem;color:var(--color-mint-dark)}

/* Hero */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding:8rem 0 4rem;
  background:linear-gradient(180deg,var(--color-yellow) 0%,#FFE9A8 60%,var(--color-cream) 100%);
  overflow:hidden;
}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.4);filter:blur(40px)}
.hero::before{width:300px;height:300px;top:10%;left:-100px}
.hero::after{width:400px;height:400px;bottom:-150px;right:-150px;background:rgba(255,155,133,.3)}
.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:3rem;align-items:center;position:relative;z-index:2}
.hero-title{margin-bottom:1.5rem}
.hero-title .highlight{background:linear-gradient(120deg,var(--color-coral),var(--color-coral-dark));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-subtitle{font-size:1.15rem;color:var(--color-text-light);margin-bottom:2rem;max-width:520px}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap}
.hero-image{position:relative}
.hero-image img{border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}

.float-deco{position:absolute;pointer-events:none;z-index:1}
.cloud-1{top:8%;right:8%;width:120px;opacity:.7}
.cloud-2{top:30%;left:5%;width:80px;opacity:.6}
.star{width:32px;height:32px}

section{padding:5rem 0;position:relative}
.about-section{background:var(--color-cream)}
.section-head{text-align:center;margin-bottom:3rem;max-width:680px;margin-inline:auto}
.section-head .eyebrow{
  display:inline-block;background:var(--color-mint);color:#fff;
  font-family:var(--font-heading);font-weight:600;font-size:.85rem;
  padding:.4rem 1.2rem;border-radius:var(--radius-pill);
  margin-bottom:1rem;letter-spacing:1px;
}
.section-head h2{margin-bottom:.75rem}
.section-head p{color:var(--color-text-light)}
.wave-divider{display:block;width:100%;height:80px}

/* Cards */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.75rem}
.card{
  background:#fff;border-radius:var(--radius-md);
  padding:2rem 1.75rem;box-shadow:var(--shadow-sm);
  transition:var(--transition);position:relative;overflow:hidden;
  border:3px solid transparent;
}
.card::before{content:"";position:absolute;top:-50%;right:-50%;width:150px;height:150px;background:var(--color-yellow);opacity:.15;border-radius:50%;transition:var(--transition)}
.card:hover{transform:translateY(-8px) rotate(-1deg);box-shadow:var(--shadow-lg);border-color:var(--color-coral)}
.card:hover::before{transform:scale(1.5)}
.card-icon{
  width:72px;height:72px;border-radius:50%;
  background:linear-gradient(135deg,var(--color-mint),var(--color-blue));
  display:grid;place-items:center;font-size:2rem;color:#fff;margin-bottom:1.25rem;
}
.card h3{margin-bottom:.75rem}
.card p{color:var(--color-text-light);font-size:.95rem}

/* Stats */
.stats{
  background:linear-gradient(135deg,var(--color-mint),var(--color-mint-dark));
  color:#fff;border-radius:var(--radius-lg);
  padding:3rem 2rem;display:grid;
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:2rem;text-align:center;
}
.stat-item .num{font-family:var(--font-heading);font-size:3rem;font-weight:700;display:block;line-height:1;margin-bottom:.5rem}
.stat-item .label{font-size:.95rem;opacity:.92}

/* Course cards */
.course-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);transition:var(--transition);position:relative}
.course-card .thumb{position:relative;overflow:hidden;aspect-ratio:4/3}
.course-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.course-card:hover .thumb img{transform:scale(1.08)}
.course-card .badge{position:absolute;top:1rem;left:1rem;z-index:2;background:var(--color-coral);color:#fff;padding:.4rem 1rem;border-radius:var(--radius-pill);font-family:var(--font-heading);font-weight:600;font-size:.85rem}
.course-card .body{padding:1.75rem}
.course-card h3{margin-bottom:.5rem}
.course-card .meta{display:flex;gap:1rem;color:var(--color-text-light);font-size:.9rem;margin-bottom:1rem}

/* Testimonials */
.testimonial{background:#fff;border-radius:var(--radius-md);padding:2rem;box-shadow:var(--shadow-sm);border-top:5px solid var(--color-yellow);height:100%}
.testimonial .stars{color:var(--color-yellow-dark);margin-bottom:.75rem;font-size:1.1rem}
.testimonial p{font-style:italic;color:var(--color-text-light)}
.testimonial .author{display:flex;align-items:center;gap:.75rem;margin-top:1rem}
.testimonial .avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--color-coral),var(--color-yellow));display:grid;place-items:center;color:#fff;font-weight:700}

/* Schedule */
.schedule-table{width:100%;border-collapse:separate;border-spacing:6px;background:#fff;border-radius:var(--radius-md);overflow:hidden}
.schedule-table th{background:var(--color-mint);color:#fff;padding:1rem;font-family:var(--font-heading)}
.schedule-table td{background:var(--color-cream);padding:.85rem;text-align:center;border-radius:var(--radius-sm);transition:var(--transition)}
.schedule-table td:hover{background:var(--color-yellow);transform:scale(1.04)}
.schedule-table .kids{background:#FFE5DC}
.schedule-table .teens{background:#D4F1E8}
.schedule-table .adults{background:#E0EAFC}

/* FAQ */
.faq-item{background:#fff;border-radius:var(--radius-md);margin-bottom:1rem;box-shadow:var(--shadow-sm);overflow:hidden}
.faq-q{padding:1.25rem 1.5rem;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-family:var(--font-heading);font-weight:600}
.faq-q .icon{width:32px;height:32px;border-radius:50%;background:var(--color-mint);color:#fff;display:grid;place-items:center;transition:var(--transition)}
.faq-item.open .faq-q .icon{transform:rotate(45deg);background:var(--color-coral)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-item.open .faq-a{max-height:500px}
.faq-a > div{padding:0 1.5rem 1.5rem;color:var(--color-text-light)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.contact-info li{display:flex;gap:1rem;align-items:flex-start;margin-bottom:1.25rem}
.contact-info .ic{width:48px;height:48px;border-radius:14px;flex-shrink:0;background:var(--color-yellow);display:grid;place-items:center;font-size:1.25rem}
.contact-form input,.contact-form textarea{width:100%;padding:1rem 1.25rem;border:2px solid #EAE2C8;border-radius:var(--radius-sm);background:#fff;font-family:inherit;font-size:1rem;margin-bottom:1rem;transition:var(--transition)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--color-mint);box-shadow:0 0 0 4px var(--color-shadow)}

/* Footer */
.site-footer{background:linear-gradient(180deg,#2E3A45,#1F2830);color:#cfd6df;padding:4rem 0 2rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2.5rem;margin-bottom:2.5rem}
.site-footer h4{color:#fff;margin-bottom:1rem;font-size:1.1rem}
.site-footer a{color:#cfd6df}
.site-footer a:hover{color:var(--color-yellow)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:1.5rem;text-align:center;font-size:.9rem;opacity:.7}

/* Floating WhatsApp */
.float-whatsapp{position:fixed;bottom:24px;right:24px;z-index:999;width:60px;height:60px;border-radius:50%;background:#25D366;color:#fff;display:grid;place-items:center;font-size:1.75rem;box-shadow:0 8px 24px rgba(37,211,102,.4);animation:breathe 2.4s ease-in-out infinite}
.float-whatsapp:hover{transform:scale(1.12)}

/* Loader */
.page-loader{position:fixed;inset:0;z-index:9999;background:var(--color-cream);display:grid;place-items:center;transition:opacity .5s,visibility .5s}
.page-loader.hide{opacity:0;visibility:hidden}
.loader-glove{width:80px;height:80px;animation:spin 1.2s linear infinite}

/* Cursor star */
.cursor-star{position:fixed;width:16px;height:16px;pointer-events:none;z-index:9998;color:var(--color-coral);transform:translate(-50%,-50%);transition:opacity .3s}

/* Page header (sub pages) */
.page-header{padding:9rem 0 4rem;background:linear-gradient(180deg,var(--color-yellow),var(--color-cream));text-align:center;position:relative;overflow:hidden}
.breadcrumb{display:flex;justify-content:center;gap:.5rem;font-size:.9rem;color:var(--color-text-light);margin-top:.75rem}
.breadcrumb a:hover{color:var(--color-coral-dark)}

/* Utilities */
.text-center{text-align:center}
.mt-2{margin-top:2rem}.mt-3{margin-top:3rem}.mb-2{margin-bottom:2rem}