/* =====================================================================
   components.css — tombol, header, menu, footer, kartu kelas, lencana
   ===================================================================== */

/* ---------- Tombol ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;min-height:48px;padding:.7rem 1.5rem;border-radius:999px;border:2px solid transparent;font:600 .975rem/1.2 var(--font-body);text-decoration:none;text-align:center;cursor:pointer;transition:background-color .2s,color .2s,border-color .2s}
.btn--sm{min-height:44px;padding:.55rem 1.1rem;font-size:.9rem}
.btn--block{display:flex;width:100%}
.btn--primary{background:var(--blue);color:#fff}
.btn--primary:hover{background:#012E9C}
.btn--light{background:#fff;color:var(--navy)}
.btn--light:hover{background:var(--light)}
.btn--outline{border-color:var(--blue);color:var(--blue);background:transparent}
.btn--outline:hover{background:var(--blue);color:#fff}
.btn--outline-light{border-color:rgba(255,255,255,.7);color:#fff;background:transparent}
.btn--outline-light:hover{background:#fff;color:var(--navy)}
.btn--wa{background:var(--whatsapp);color:var(--whatsapp-ink)}
.btn--wa:hover{background:#1EBE5A}
.btn--text{min-height:44px;padding-inline:.5rem;color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.btn--disabled{background:#E3E8F2;color:#5B6584;cursor:not-allowed}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:#fff;min-height:var(--header-h);border-bottom:1px solid transparent;transition:box-shadow .2s,border-color .2s}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(3,16,95,.1);border-color:var(--line)}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:var(--header-h)}
.brand{display:block;flex:none;line-height:0}
.brand img{height:38px;width:auto}
.main-nav{display:none}
.site-header__actions{display:flex;align-items:center;gap:.5rem}
.header-cta__text{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.header-cta{padding:.5rem;min-width:44px}
.menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--navy);cursor:pointer}
.menu-toggle .icon{width:24px;height:24px}
.noscript-bar{display:flex;flex-wrap:wrap;gap:.5rem 1.25rem;align-items:center;padding:.75rem 0;font-size:.95rem}
.noscript-bar a{color:var(--navy);font-weight:600}

.mobile-menu{position:fixed;inset:var(--header-h) 0 0 0;background:#fff;padding:1.25rem 1.25rem calc(1.25rem + env(safe-area-inset-bottom));overflow-y:auto;display:flex;flex-direction:column;gap:1.25rem;z-index:99}
.mobile-menu[hidden]{display:none}
.mobile-menu ul{display:flex;flex-direction:column}
.mobile-menu li a{display:block;padding:.95rem .25rem;font:700 1.15rem var(--font-head);color:var(--navy);text-decoration:none;border-bottom:1px solid var(--line)}
.mobile-menu li a[aria-current="page"]{color:var(--blue)}
.mobile-menu .btn{margin-top:auto}

@media (min-width:640px){
  .header-cta{padding:.55rem 1.1rem}
  .header-cta__text{position:static;width:auto;height:auto;overflow:visible;clip:auto}
}
@media (min-width:1100px){
  .brand img{height:44px}
}
@media (min-width:1240px){
  .main-nav{display:block}
  .main-nav ul{display:flex;gap:1.1rem}
  .main-nav a{display:block;white-space:nowrap;padding:.4rem 0;font-weight:500;font-size:.9rem;color:var(--navy);text-decoration:none;border-bottom:2px solid transparent}
  .main-nav a:hover{border-bottom-color:var(--red)}
  .main-nav a[aria-current="page"]{color:var(--blue);border-bottom-color:var(--red)}
  .menu-toggle{display:none}
}

/* ---------- WhatsApp melayang ---------- */
.wa-float{position:fixed;right:1rem;bottom:calc(1rem + env(safe-area-inset-bottom));z-index:95;display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--whatsapp);color:#fff;box-shadow:0 6px 18px rgba(0,0,0,.28),0 0 0 3px #fff}
.wa-float .icon{width:30px;height:30px}
.wa-float:hover{background:#1EBE5A}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-deep);color:#C9D6F0;padding-top:clamp(2.5rem,2rem + 3vw,4rem)}
.site-footer a{color:#fff}
.footer__grid{display:grid;gap:2rem;grid-template-columns:1fr}
.footer__logo{display:inline-block;background:#fff;padding:.6rem .9rem;border-radius:14px;line-height:0}
.footer__logo img{height:40px;width:auto}
.footer__tagline{margin:1rem 0 .25rem;font:500 1rem var(--font-head);color:#fff}
.footer__about{max-width:22rem;font-size:.95rem}
.footer__title{font:700 1rem var(--font-head);color:#fff;margin:0 0 .75rem}
.footer__col li{padding:.2rem 0;font-size:.95rem}
.footer__col a{text-decoration:none}
.footer__col a:hover{text-decoration:underline}
.footer__bottom{margin-top:2.25rem;padding:1.25rem 0 calc(1.25rem + 3.5rem);border-top:1px solid rgba(255,255,255,.14);font-size:.875rem}
.footer__bottom p{margin:0}
@media (min-width:768px){.footer__grid{grid-template-columns:1.3fr 1fr 1.2fr}.footer__grid .footer__col:nth-child(4){grid-column:auto}.footer__bottom{padding-bottom:1.25rem}}
@media (min-width:1000px){.footer__grid{grid-template-columns:1.4fr 1fr 1.2fr 1fr}}

/* ---------- Lencana status & kartu kelas ---------- */
.badge{display:inline-block;align-self:flex-start;padding:.25rem .7rem;border-radius:999px;font:600 .8125rem/1.3 var(--font-body)}
.badge--open{background:var(--blue);color:#fff}
.badge--soon{background:var(--light);color:var(--navy);box-shadow:inset 0 0 0 1px var(--line)}
.badge--closed{background:#E3E8F2;color:#4A5473}

.classes__grid{display:grid;gap:1.25rem;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr))}
.class-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden}
.class-card__media{aspect-ratio:4/5;background:var(--light);overflow:hidden}
.class-card__media>img{width:100%;height:100%;object-fit:cover}
.poster-fallback{position:relative;width:100%;height:100%;display:grid;place-items:center;background:linear-gradient(135deg,var(--light),#fff);overflow:hidden}
.poster-fallback::before{content:"";position:absolute;width:70%;aspect-ratio:1;border-radius:50%;background:var(--blue);opacity:.12;right:-20%;top:-12%}
.poster-fallback::after{content:"";position:absolute;width:34%;aspect-ratio:1;background:var(--red);border-radius:100% 0 0 0;right:0;bottom:0;opacity:.9}
.poster-fallback img{position:relative;z-index:1;width:62%;height:auto}
.class-card__body{display:flex;flex-direction:column;gap:.7rem;padding:1.25rem 1.25rem 1.4rem;flex:1}
.class-card__title{margin:0;font-size:1.2rem;line-height:1.3;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.class-card__summary{margin:0;color:var(--muted);font-size:.95rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.class-card__meta{display:grid;gap:.4rem;font-size:.9rem;color:var(--ink)}
.class-card__meta li{display:flex;gap:.55rem;align-items:flex-start}
.class-card__meta .icon{margin-top:.15rem;color:var(--blue)}
.class-card__actions{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:auto;padding-top:.5rem}
.class-card__actions .btn{flex:1 1 auto}
.class-card__actions .btn--text{flex:0 0 auto}
@media (max-width:767px){
  .classes__grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:1rem;padding-bottom:.75rem;margin-inline:-1.25rem;padding-inline:1.25rem;scroll-padding-inline:1.25rem}
  .classes__grid>.class-card{flex:0 0 82%;scroll-snap-align:start}
}
.classes__empty{display:grid;gap:.5rem;justify-items:start;padding:clamp(1.5rem,1rem + 2vw,2.25rem);background:#fff;border:1px dashed #9DB8DA;border-radius:var(--radius-l)}
.classes__empty h3{margin:0}
.classes__empty p{margin:0 0 .75rem;color:var(--muted);max-width:34rem}
[data-classes]:not(.is-ready){min-height:14rem}
.js [data-classes]:not(.is-ready) .classes__empty{visibility:hidden}

.classes__group+.classes__group{margin-top:clamp(2rem,1.5rem + 2vw,3rem)}
.classes__group-title{margin:0 0 1rem;font-size:1.3rem}