/* Ubahin design system — token sesuai PRD bagian 4 */
:root{
  --primary:#4F46E5; --primary-dark:#3730A3; --primary-soft:#EEF2FF;
  --accent:#F59E0B; --accent-soft:#FEF3C7;
  --ok:#16A34A; --ok-soft:#DCFCE7; --err:#DC2626; --err-soft:#FEE2E2;
  --bg:#F8FAFC; --surface:#FFFFFF; --text:#0F172A; --muted:#475569; --line:#E2E8F0;
  --radius:14px; --radius-sm:10px;
  --shadow:0 1px 2px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.06);
  --font-head:'Plus Jakarta Sans','Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-body:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --c-img:#0EA5E9; --c-pdf:#EF4444; --c-media:#8B5CF6; --c-tool:#10B981;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font-body);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{font-family:var(--font-head);line-height:1.2;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(1.9rem,5vw,3rem);font-weight:800}
h2{font-size:clamp(1.4rem,3vw,1.9rem);font-weight:700}
h3{font-size:1.1rem;font-weight:700}
p{margin:0 0 1em}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 16px}
.narrow{max-width:760px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;background:var(--text);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:20px;height:64px}
.nav .logo img{height:34px;display:block}
.nav-menu{display:flex;gap:4px;margin-left:12px;flex:1}
.nav-menu>li{list-style:none;position:relative}
.nav-menu,.nav-menu ul{padding:0;margin:0}
.nav-menu>li>a,.nav-menu>li>button{font:600 .95rem var(--font-body);color:var(--text);background:none;border:0;padding:10px 12px;border-radius:10px;cursor:pointer;display:flex;align-items:center;gap:4px}
.nav-menu>li>a:hover,.nav-menu>li>button:hover{background:var(--primary-soft);text-decoration:none}
.drop{display:none;position:absolute;top:100%;left:0;min-width:240px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:8px}
.nav-menu>li:hover .drop,.nav-menu>li:focus-within .drop{display:block}
.drop li{list-style:none}
.drop a{display:block;padding:8px 12px;border-radius:8px;color:var(--text);font-size:.95rem}
.drop a:hover{background:var(--primary-soft);text-decoration:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:700 1rem var(--font-body);padding:12px 22px;border-radius:var(--radius-sm);border:2px solid transparent;cursor:pointer;transition:.15s;text-decoration:none!important}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-primary[disabled]{background:#A5B4FC;cursor:not-allowed}
.btn-ghost{background:var(--surface);color:var(--primary);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary)}
.btn-accent{background:var(--accent);color:#1F1300}
.btn-accent:hover{background:#D97706;color:#fff}
.btn-sm{padding:8px 14px;font-size:.9rem}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:10px;padding:8px 10px;font-size:1.2rem;cursor:pointer}
.nav-cta{margin-left:auto}

/* Hero */
.hero{padding:48px 0 24px;text-align:center}
.hero .eyebrow{display:inline-block;background:var(--primary-soft);color:var(--primary-dark);font-weight:700;font-size:.85rem;padding:6px 14px;border-radius:99px;margin-bottom:16px}
.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:640px;margin:0 auto 28px}
.crumbs{font-size:.9rem;color:var(--muted);padding:16px 0 0}
.crumbs a{color:var(--muted)}

/* Konverter */
.tool{background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:20px;max-width:860px;margin:0 auto;text-align:left}
.drop-zone{border:2.5px dashed #A5B4FC;border-radius:var(--radius);background:var(--primary-soft);padding:44px 20px;text-align:center;transition:.15s;cursor:pointer}
.drop-zone.over{background:#E0E7FF;border-color:var(--primary);transform:scale(1.01)}
.drop-zone .big{font:700 1.25rem var(--font-head);margin:10px 0 4px}
.drop-zone small{color:var(--muted)}
.drop-zone svg{width:56px;height:56px;color:var(--primary)}
.picked{margin-top:16px;display:grid;gap:8px}
.file{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:#fff}
.file .ext{flex:none;width:44px;height:44px;border-radius:10px;display:grid;place-items:center;color:#fff;font:800 .7rem var(--font-head);text-transform:uppercase;background:var(--c-tool)}
.file .ext.img{background:var(--c-img)} .file .ext.pdf{background:var(--c-pdf)} .file .ext.media{background:var(--c-media)}
.file .meta{flex:1;min-width:0}
.file .name{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file .sub{font-size:.85rem;color:var(--muted)}
.file .state{font-size:.85rem;font-weight:600}
.state.ok{color:var(--ok)} .state.err{color:var(--err)}
.x{background:none;border:0;font-size:1.4rem;line-height:1;color:var(--muted);cursor:pointer;padding:6px 10px;border-radius:8px}
.x:hover{background:var(--err-soft);color:var(--err)}
.opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-top:18px}
.opt label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}
.opt select,.opt input[type=text],.opt input[type=number]{width:100%;padding:11px 12px;border:1.5px solid var(--line);border-radius:var(--radius-sm);font:1rem var(--font-body);background:#fff;color:var(--text)}
.opt input[type=range]{width:100%;accent-color:var(--primary)}
.opt .hint{font-size:.8rem;color:var(--muted);margin-top:4px}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;align-items:center}
.progress{height:10px;border-radius:99px;background:var(--line);overflow:hidden;margin-top:16px;display:none}
.progress>div{height:100%;width:0;background:var(--primary);transition:width .2s}
.status{margin-top:10px;font-size:.92rem;color:var(--muted);min-height:1.4em}
.alert{margin-top:14px;padding:12px 14px;border-radius:var(--radius-sm);font-size:.95rem;display:none}
.alert.err{display:block;background:var(--err-soft);color:#7F1D1D}
.alert.info{display:block;background:var(--accent-soft);color:#78350F}
.results{margin-top:20px;display:none}
.results h3{margin-bottom:10px}
.res{display:flex;align-items:center;gap:12px;border:1px solid #BBF7D0;background:var(--ok-soft);border-radius:12px;padding:10px 12px;margin-bottom:8px}
.res .meta{flex:1;min-width:0}
.res .name{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.res .sub{font-size:.85rem;color:#166534}
.res img.thumb{width:44px;height:44px;object-fit:cover;border-radius:8px;flex:none}
.trust{display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:center;margin:18px 0 0;padding:0;list-style:none;color:var(--muted);font-size:.9rem}
.trust li::before{content:"✓ ";color:var(--ok);font-weight:800}

/* Seksi */
section.block{padding:48px 0}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;color:var(--text);transition:.15s}
a.card:hover{border-color:var(--primary);box-shadow:var(--shadow);transform:translateY(-2px);text-decoration:none}
.card .ico{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;color:#fff;font-weight:800;font-size:.75rem;margin-bottom:10px;background:var(--c-tool)}
.ico.img{background:var(--c-img)} .ico.pdf{background:var(--c-pdf)} .ico.media{background:var(--c-media)}
.card h3{margin:0 0 4px;font-size:1.02rem}
.card p{margin:0;color:var(--muted);font-size:.92rem}
.steps{counter-reset:s;display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));padding:0;list-style:none}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.steps li::before{content:counter(s);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;font-weight:800;margin-bottom:10px}
.banner{background:linear-gradient(135deg,var(--primary),#7C3AED);color:#fff;border-radius:20px;padding:32px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.banner h2{margin:0;color:#fff}.banner p{margin:4px 0 0;opacity:.9}
details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:0;margin-bottom:10px}
summary{cursor:pointer;font-weight:700;padding:14px 16px;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::after{content:"+";font-size:1.3rem;line-height:1;color:var(--primary)}
details[open] summary::after{content:"–"}
details div{padding:0 16px 14px;color:var(--muted)}
.prose{max-width:760px}
.prose h2{margin-top:1.6em}
.prose li{margin-bottom:.4em}
.prose table{border-collapse:collapse;width:100%;margin:1em 0}
.prose th,.prose td{border:1px solid var(--line);padding:8px 10px;text-align:left}
.prose th{background:var(--primary-soft)}
.pill{display:inline-block;background:var(--accent-soft);color:#78350F;font-size:.75rem;font-weight:700;padding:2px 8px;border-radius:99px;vertical-align:middle}

/* Footer */
.site-footer{background:#0F172A;color:#CBD5E1;margin-top:48px;padding:48px 0 24px}
.site-footer a{color:#CBD5E1}
.site-footer a:hover{color:#fff}
.fgrid{display:grid;gap:28px;grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
.site-footer h3{color:#fff;font-size:.95rem;margin-bottom:10px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:6px;font-size:.92rem}
.fbottom{border-top:1px solid #1E293B;margin-top:32px;padding-top:18px;font-size:.85rem;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}
.unit{display:grid;gap:14px;grid-template-columns:1fr auto 1fr;align-items:end}
.unit .swap{align-self:end;margin-bottom:2px}

@media (max-width:860px){
  .burger{display:block}
  .nav-menu{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;padding:8px 16px 16px;margin:0;max-height:75vh;overflow:auto}
  .nav-menu.open{display:flex}
  .drop{display:block;position:static;border:0;box-shadow:none;padding:0 0 0 12px;min-width:0}
  .nav-cta{display:none}
  .unit{grid-template-columns:1fr}
}
@media (max-width:480px){.tool{padding:14px;border-radius:16px}.drop-zone{padding:32px 12px}.banner{padding:22px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}