/* =============================================================
   Tunas Harapan 09 — landing page
   Bahasa visual: semangat muda merah-putih, tapi tetap smooth & cute.
   Palet: merah perjuangan hangat + putih bersih + sentuhan pink lembut.
   ============================================================= */
:root{
  --merah:       #E6473E;
  --merah-dark:  #A81F19;
  --merah-deep:  #7A1712;
  --merah-light: #FFE3E0;
  --merah-soft:  #FFF1EE;

  --ink:         #2B2320;
  --ink-soft:    #4A3B36;
  --muted:       #8A736C;

  --paper:       #FFFBF8;
  --white:       #ffffff;

  --radius:      26px;
  --radius-sm:   16px;

  --font-display: 'Baloo 2', 'Poppins', system-ui, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--ink-soft);
  background: var(--paper);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none; color:inherit;}
img{max-width:100%; display:block;}
ul{margin:0; padding:0; list-style:none;}
button{font-family:inherit;}

.container{max-width:1140px; margin:0 auto; padding:0 24px;}
section{padding:110px 0;}

h1,h2,h3{
  font-family: var(--font-display);
  font-weight:700;
  line-height:1.2;
  margin:0;
  color: var(--ink);
}
h2{font-size:clamp(28px, 4vw, 40px);}
h3{font-size:19px;}
p{margin:0;}
code{background:var(--merah-light); color:var(--merah-dark); padding:2px 8px; border-radius:6px; font-size:0.9em;}

.skip-link{position:absolute; left:-999px; top:auto;}
.skip-link:focus{
  left:12px; top:12px; background:var(--merah); color:#fff;
  padding:8px 14px; border-radius:8px; z-index:999;
}

.eyebrow{
  display:inline-block; font-family:var(--font-display); font-size:0.78rem; font-weight:700;
  letter-spacing:.05em; text-transform:uppercase; color:#fff;
  background:var(--merah); padding:9px 26px 9px 18px; margin-bottom:18px;
  clip-path:polygon(0 0, 88% 0, 100% 50%, 88% 100%, 0 100%);
}

.section-head{max-width:640px; margin:0 auto 56px; text-align:center;}
.section-head p{color:var(--muted); margin-top:14px; font-size:1.02rem;}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:0; transform:translateY(26px); transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1; transform:translateY(0);}

/* ---------- buttons (sticker style: bordered + hard offset shadow) ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px; font-weight:700; font-size:0.96rem;
  padding:13px 28px; border-radius:14px; transition:transform .2s ease, box-shadow .2s ease;
  box-shadow:4px 4px 0 var(--ink); border:2.5px solid var(--ink); cursor:pointer;
  font-family:var(--font-display);
}
.btn-primary{background:var(--merah); color:#fff;}
.btn-primary:hover{transform:translate(-2px,-2px); box-shadow:6px 6px 0 var(--ink);}
.btn-primary:active{transform:translate(0,0); box-shadow:2px 2px 0 var(--ink);}
.btn-ghost{background:#fff; color:var(--ink);}
.btn-ghost:hover{background:var(--merah-soft); transform:translate(-2px,-2px); box-shadow:6px 6px 0 var(--ink);}
.btn-ghost:active{transform:translate(0,0); box-shadow:2px 2px 0 var(--ink);}
.btn-sm{padding:9px 18px; font-size:0.84rem; border-width:2px; box-shadow:3px 3px 0 var(--ink);}

/* ---------- brand / logo ---------- */
.brand{display:flex; align-items:center; gap:10px;}
.brand-mark{width:46px; height:46px; flex-shrink:0; border-radius:10px;}
.brand-text{font-family:var(--font-display); font-weight:700; font-size:1.2rem; letter-spacing:-0.01em; color:var(--ink); display:flex; align-items:baseline; gap:4px;}
.brand-num{
  font-size:0.7rem; font-weight:700; background:var(--merah); color:#fff;
  padding:3px 7px; border-radius:8px; vertical-align:middle;
}

/* ---------- header ---------- */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:500;
  background:rgba(255,251,248,0.8);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(43,35,32,0.06);
  transition:box-shadow .3s ease;
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(43,35,32,0.08);}
.header-inner{
  display:flex; align-items:center; gap:20px; height:82px;
}
.header-inner .brand{margin-right:auto;}
.main-nav{display:flex; gap:26px;}
.nav-link{
  font-weight:600; font-size:0.94rem; color:var(--ink-soft); opacity:.85;
  border-bottom:2px solid transparent; padding:4px 0; transition:opacity .2s ease, border-color .2s ease;
}
.nav-link:hover, .nav-link.active{opacity:1; border-color:var(--merah);}
.header-cta{padding:10px 22px; font-size:0.88rem; border-width:2px; box-shadow:3px 3px 0 var(--ink);}
.header-cta:hover{box-shadow:5px 5px 0 var(--ink);}
.nav-toggle{
  display:none; flex-direction:column; justify-content:center; align-items:center;
  gap:5px; width:42px; height:42px; border-radius:12px; background:transparent;
  border:none; cursor:pointer;
}
.nav-toggle span{width:22px; height:2px; background:var(--ink); border-radius:2px; transition:transform .25s ease, opacity .25s ease;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- hero ---------- */
.hero{
  padding:170px 0 90px;
  position:relative;
  background:var(--paper);
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute; top:-15%; left:-15%; width:75%; height:65%;
  background:linear-gradient(120deg, var(--merah-light) 0%, var(--merah-light) 55%, transparent 56%);
  transform:rotate(-6deg);
  z-index:0;
}
.hero::after{
  content:'';
  position:absolute; inset:0;
  background-image:radial-gradient(var(--merah-light) 1.6px, transparent 1.6px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(ellipse 60% 50% at 85% 15%, black 0%, transparent 70%);
  mask-image:radial-gradient(ellipse 60% 50% at 85% 15%, black 0%, transparent 70%);
  z-index:0;
}
.hero-inner{position:relative; z-index:1; display:flex; flex-direction:column; align-items:center; gap:56px;}
.hero-copy{max-width:700px; text-align:center;}
.hero h1{font-size:clamp(2.3rem, 5vw, 3.6rem); letter-spacing:-0.02em; margin-top:10px;}
.hero h1 .accent{color:var(--merah);}
.hero p.lead{font-size:1.08rem; color:var(--muted); max-width:560px; margin:22px auto 30px;}
.hero-actions{display:flex; gap:16px; flex-wrap:wrap; margin-bottom:22px; justify-content:center;}
.hero-note{font-size:0.86rem; color:var(--muted);}

/* ---------- hero photo wall (scrapbook stickers, not a soft blob collage) ---------- */
.photowall{
  position:relative; display:flex; align-items:flex-end; justify-content:center;
  gap:16px; width:100%; max-width:900px; padding:0 8px 20px;
}
.photowall-item{
  position:relative; margin:0; background:#fff; border:3px solid var(--ink); border-radius:14px;
  padding:7px 7px 7px; box-shadow:5px 5px 0 var(--ink); flex:0 0 auto;
  width:130px; height:160px; transform:rotate(var(--r, 0deg));
  transition:transform .25s ease, box-shadow .25s ease;
}
.photowall-item img{width:100%; height:100%; object-fit:cover; border-radius:7px;}
.photowall-item:hover{transform:rotate(0deg) translateY(-8px); box-shadow:7px 7px 0 var(--ink); z-index:5;}
.pw-1{--r:-7deg;}
.pw-2{--r:5deg; margin-bottom:22px;}
.pw-3.pw-featured{width:190px; height:230px; --r:-3deg; z-index:2;}
.pw-4{--r:6deg; margin-bottom:18px;}
.pw-5{--r:-5deg;}
.pw-tag{
  position:absolute; bottom:-16px; left:50%; transform:translateX(-50%) rotate(-2deg);
  background:var(--ink); color:#fff; font-family:var(--font-display); font-weight:700;
  font-size:0.68rem; letter-spacing:.02em; padding:7px 14px; border-radius:8px;
  white-space:nowrap; box-shadow:0 6px 14px rgba(43,35,32,0.3); z-index:6;
}

/* ---------- tentang ---------- */
.about-grid{display:grid; grid-template-columns:1.1fr 0.9fr; gap:60px; align-items:center;}
.about h2{font-size:2.1rem; margin-bottom:20px;}
.about p{color:var(--muted); margin-bottom:16px; font-size:1.03rem;}
blockquote{
  margin:24px 0 0; padding:18px 24px; border-left:4px solid var(--merah);
  background:var(--merah-light); border-radius:0 14px 14px 0;
  font-style:italic; font-weight:600; color:var(--merah-dark); font-family:var(--font-display);
}
.about-visual{display:flex; flex-direction:column; gap:16px;}
.stat-card{
  background:#fff; border:2px solid var(--ink); border-radius:14px; padding:20px 22px;
  box-shadow:4px 4px 0 var(--merah-light); display:flex; align-items:center; gap:16px;
}
.stat-icon{font-size:1.8rem; flex-shrink:0;}
.stat-card strong{font-family:var(--font-display); font-size:1.3rem; color:var(--merah-dark); display:block;}
.stat-card p{color:var(--muted); font-size:0.9rem; margin-top:2px;}

/* ---------- galeri (sorotan utama) ---------- */
.galeri{background:var(--merah-soft);}
.gallery-filter{display:flex; gap:10px; justify-content:center; flex-wrap:wrap; margin-bottom:36px;}
.filter-btn{
  background:#fff; border:2px solid var(--ink); color:var(--ink-soft); font-weight:700;
  font-size:0.86rem; padding:8px 18px; border-radius:999px; cursor:pointer;
  box-shadow:3px 3px 0 var(--ink);
  transition:transform .2s ease, box-shadow .2s ease, color .2s ease, background .2s ease;
}
.filter-btn:hover{transform:translate(-1px,-1px); box-shadow:4px 4px 0 var(--ink);}
.filter-btn.active{background:var(--merah); color:#fff;}

.gallery-grid{
  display:grid; grid-template-columns:repeat(3, 1fr); grid-auto-rows:230px; gap:20px;
}
.gallery-item{
  position:relative; margin:0; border-radius:var(--radius-sm); overflow:hidden; cursor:pointer;
  border:4px solid #fff; box-shadow:0 14px 34px rgba(43,35,32,0.14); box-sizing:border-box;
  transition:transform .3s ease, box-shadow .3s ease;
}
.gallery-item.featured{grid-column:span 2; grid-row:span 2;}
.gallery-item img{width:100%; height:100%; object-fit:cover; transition:transform .4s ease;}
.gallery-item:hover{transform:translateY(-6px); box-shadow:0 22px 46px rgba(168,31,25,0.2);}
.gallery-item:hover img{transform:scale(1.06);}
.gallery-item figcaption{
  position:absolute; left:0; right:0; bottom:0; padding:16px 18px;
  background:linear-gradient(0deg, rgba(43,35,32,0.75), transparent);
  color:#fff; font-weight:600; font-size:0.92rem; font-family:var(--font-display);
}
.gallery-note{text-align:center; color:var(--muted); font-size:0.9rem; margin-top:30px;}

/* ---------- kegiatan / cards3 ---------- */
.cards3{display:grid; grid-template-columns:repeat(3, 1fr); gap:26px;}
.card{
  background:#fff; border:2px solid var(--ink); border-radius:var(--radius); padding:34px 26px;
  box-shadow:5px 5px 0 var(--merah-light); transition:transform .2s ease, box-shadow .2s ease;
}
.card:hover{transform:translate(-3px,-3px); box-shadow:8px 8px 0 var(--merah-light);}
.card .icon{
  width:52px; height:52px; border-radius:14px; background:var(--merah); border:2px solid var(--ink);
  display:flex; align-items:center; justify-content:center; font-size:1.4rem; margin-bottom:18px;
}
.card h3{font-size:1.1rem; margin-bottom:8px;}
.card p{color:var(--muted); font-size:0.94rem;}

/* ---------- pengurus ---------- */
.pengurus{background:var(--merah-soft);}
.pengurus-grid{display:grid; grid-template-columns:repeat(4, 1fr); gap:24px;}
.pengurus-card{
  background:#fff; border:2px solid var(--ink); border-radius:var(--radius); padding:30px 18px; text-align:center;
  box-shadow:5px 5px 0 var(--merah-light); transition:transform .2s ease, box-shadow .2s ease;
}
.pengurus-card:hover{transform:translate(-3px,-3px); box-shadow:7px 7px 0 var(--merah-light);}
.avatar{
  width:70px; height:70px; border-radius:50%; margin:0 auto 16px; background:var(--merah);
  border:2px solid var(--ink); color:#fff; display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-weight:700; font-size:1.2rem;
}
.pengurus-card h3{font-size:1.02rem; margin-bottom:4px;}
.pengurus-card span{color:var(--merah-dark); font-weight:600; font-size:0.86rem;}

/* ---------- agenda ---------- */
.agenda-list{max-width:720px; margin:0 auto; display:flex; flex-direction:column; gap:14px;}
.agenda-item{
  display:flex; align-items:center; gap:20px; background:#fff; border:2px solid var(--ink); border-radius:var(--radius-sm);
  padding:16px 20px; box-shadow:4px 4px 0 var(--merah-light); transition:transform .2s ease, box-shadow .2s ease;
}
.agenda-item:hover{transform:translate(-3px,-3px); box-shadow:6px 6px 0 var(--merah-light);}
.agenda-date{
  flex-shrink:0; width:60px; height:60px; border-radius:14px; background:var(--merah-light);
  border:2px solid var(--ink); color:var(--merah-dark); display:flex; flex-direction:column;
  align-items:center; justify-content:center; font-family:var(--font-display);
}
.agenda-date strong{font-size:1.4rem; line-height:1;}
.agenda-date span{font-size:0.72rem; text-transform:uppercase; letter-spacing:.05em; font-weight:700;}
.agenda-info h3{font-size:1rem; margin-bottom:4px;}
.agenda-info p{color:var(--muted); font-size:0.88rem;}

/* ---------- cta ---------- */
.cta{
  position:relative; overflow:hidden;
  background:var(--merah);
  border:3px solid var(--ink); border-radius:var(--radius);
  box-shadow:8px 8px 0 var(--ink);
  color:#fff; text-align:center; padding:70px 40px;
}
.cta::before{
  content:''; position:absolute; inset:0; pointer-events:none;
  background:repeating-linear-gradient(135deg, rgba(255,255,255,0.09) 0 16px, transparent 16px 32px);
}
.cta > *{position:relative; z-index:1;}
.cta h2{color:#fff; font-size:2.1rem; margin-bottom:16px;}
.cta p{opacity:.94; max-width:520px; margin:0 auto 30px;}
.cta .btn-primary{background:#fff; color:var(--merah-dark); border-color:var(--ink);}

/* ---------- footer ---------- */
.site-footer{
  position:relative; overflow:hidden;
  padding:64px 0 34px; text-align:center; background:var(--ink); color:rgba(255,251,248,0.85);
}
.site-footer::before{
  content:''; position:absolute; inset:0; pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,0.09) 1.4px, transparent 1.4px);
  background-size:26px 26px;
}
.site-footer .container{position:relative; z-index:1;}
.site-footer .footer-brand{justify-content:center;}
.site-footer .brand-text{color:#fff;}
.footer-mark{width:64px; height:64px; border-radius:14px; box-shadow:0 10px 26px rgba(0,0,0,0.4);}
.footer-tag{margin:16px 0 26px; font-size:0.95rem; opacity:.8; max-width:480px; margin-left:auto; margin-right:auto;}
.footer-links{display:flex; gap:24px; justify-content:center; flex-wrap:wrap; margin-bottom:22px;}
.footer-links a{font-size:0.9rem; opacity:.8; transition:opacity .2s ease;}
.footer-links a:hover{opacity:1;}
.footer-socials{display:flex; gap:10px; justify-content:center; flex-wrap:wrap; margin-bottom:26px; font-size:0.88rem;}
.footer-socials a{color:#FF9C90; opacity:.95;}
.footer-socials a:hover{opacity:1;}
.footer-socials span{opacity:.4;}
.fine{font-size:0.82rem; opacity:.6;}
.placeholder-note{margin-top:6px; opacity:.4;}

/* ---------- floating buttons ---------- */
.fab-whatsapp{
  position:fixed; bottom:26px; right:26px; width:58px; height:58px; border-radius:50%;
  background:var(--merah); color:#fff; display:flex; align-items:center; justify-content:center;
  font-size:1.5rem; box-shadow:0 16px 34px rgba(168,31,25,0.4); z-index:400;
  transition:transform .25s ease;
}
.fab-whatsapp:hover{transform:scale(1.08);}
.back-to-top{
  position:fixed; bottom:26px; right:96px; width:46px; height:46px; border-radius:50%;
  background:#fff; color:var(--ink); border:1px solid rgba(43,35,32,0.1);
  box-shadow:0 12px 26px rgba(43,35,32,0.12); font-size:1.1rem; cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  opacity:0; pointer-events:none; transform:translateY(10px);
  transition:opacity .25s ease, transform .25s ease; z-index:400;
}
.back-to-top.show{opacity:1; pointer-events:auto; transform:translateY(0);}

/* ---------- lightbox ---------- */
.lightbox{
  position:fixed; inset:0; background:rgba(43,35,32,0.92); z-index:900;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:16px;
  opacity:0; pointer-events:none; transition:opacity .25s ease; padding:24px;
}
.lightbox.open{opacity:1; pointer-events:auto;}
.lightbox-img{max-width:min(88vw, 800px); max-height:70vh; border-radius:16px; box-shadow:0 30px 70px rgba(0,0,0,0.4);}
.lightbox-caption{color:#fff; font-family:var(--font-display); font-weight:600; font-size:1rem;}
.lightbox-close{
  position:absolute; top:22px; right:26px; background:rgba(255,255,255,0.12); color:#fff; border:none;
  width:42px; height:42px; border-radius:50%; font-size:1.2rem; cursor:pointer;
}
.lightbox-nav{
  background:rgba(255,255,255,0.12); color:#fff; border:none; width:48px; height:48px; border-radius:50%;
  font-size:1.8rem; cursor:pointer; display:flex; align-items:center; justify-content:center;
}
.lightbox-prev{position:absolute; left:22px; top:50%; transform:translateY(-50%);}
.lightbox-next{position:absolute; right:22px; top:50%; transform:translateY(-50%);}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .photowall{flex-wrap:wrap; max-width:520px;}
  .about-grid{grid-template-columns:1fr;}
  .about-visual{margin-top:20px;}
  .cards3{grid-template-columns:1fr 1fr;}
  .pengurus-grid{grid-template-columns:1fr 1fr;}
  .gallery-grid{grid-template-columns:repeat(2, 1fr); grid-auto-rows:200px;}
  .gallery-item.featured{grid-column:span 2; grid-row:span 1;}
}
@media (max-width:720px){
  section{padding:80px 0;}
  .hero{padding-top:150px;}
  .main-nav{
    position:absolute; top:100%; left:0; right:0; background:var(--paper);
    flex-direction:column; gap:0; border-bottom:1px solid rgba(43,35,32,0.06);
    box-shadow:0 16px 30px rgba(43,35,32,0.08); max-height:0; overflow:hidden;
    transition:max-height .3s ease;
  }
  .main-nav.open{max-height:420px;}
  .main-nav a{padding:16px 24px; border-top:1px solid rgba(43,35,32,0.06);}
  .nav-toggle{display:flex;}
  .header-cta{display:none;}
  .cards3{grid-template-columns:1fr 1fr; gap:14px;}
  .card{padding:20px 16px;}
  .card .icon{width:42px; height:42px; border-radius:13px; font-size:1.25rem; margin-bottom:12px;}
  .card h3{font-size:0.96rem; margin-bottom:6px;}
  .card p{font-size:0.82rem;}
  .pengurus-grid{grid-template-columns:1fr 1fr; gap:14px;}
  .pengurus-card{padding:20px 14px;}
  .avatar{width:56px; height:56px; font-size:1.05rem; margin-bottom:10px;}
  .pengurus-card h3{font-size:0.88rem;}
  .pengurus-card span{font-size:0.76rem;}
  .photowall{gap:10px; max-width:360px;}
  .photowall-item{width:90px; height:112px; border-width:2.5px; box-shadow:3px 3px 0 var(--ink); border-radius:10px;}
  .photowall-item:hover{box-shadow:4px 4px 0 var(--ink);}
  .pw-3.pw-featured{width:132px; height:160px;}
  .pw-tag{font-size:0.58rem; padding:5px 10px; bottom:-12px;}
  .gallery-grid{grid-template-columns:1fr 1fr; grid-auto-rows:150px; gap:12px;}
  .gallery-item.featured{grid-column:span 2; grid-row:span 1; grid-auto-rows:220px;}
  .gallery-item figcaption{font-size:0.76rem; padding:10px 12px;}
  .gallery-filter{gap:8px;}
  .filter-btn{padding:7px 14px; font-size:0.8rem;}
  .agenda-item{padding:14px 16px; gap:14px;}
  .agenda-date{width:52px; height:52px;}
  .agenda-date strong{font-size:1.1rem;}
  .agenda-info h3{font-size:0.92rem;}
  .agenda-info p{font-size:0.8rem;}
  .cta{padding:46px 22px;}
  .cta h2{font-size:1.5rem;}
  .lightbox-nav{width:38px; height:38px; font-size:1.4rem;}
  .lightbox-close{width:36px; height:36px; top:14px; right:14px;}
}