/* Tema portofolio — porting dari Portofolio-Muhammad-Ilham-Kurniawan.html */
:root{
  --ink:#0e1726; --ink-2:#1a2332; --paper:#fbfcfd; --surface:#ffffff;
  --accent:#0f4c81; --accent-soft:#e8f0f7; --sky:#4a90c9; --gold:#b8860b;
  --text:#2c3542; --text-2:#5a6572; --line:#e2e7ec;
  --shadow:0 1px 2px rgba(14,23,38,.05),0 8px 28px rgba(14,23,38,.07);
  --shadow-lift:0 2px 4px rgba(14,23,38,.06),0 16px 44px rgba(14,23,38,.12);
  --serif:Georgia,'Times New Roman',serif;
  --sans:'Segoe UI',-apple-system,'Helvetica Neue',Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-print-color-adjust:exact;print-color-adjust:exact}
body{font-family:var(--sans);color:var(--text);background:var(--paper);line-height:1.65;font-size:16px}
::selection{background:var(--accent);color:#fff}
a{color:var(--accent)}
:focus-visible{outline:2.5px solid var(--sky);outline-offset:3px;border-radius:2px}
.wrap{max-width:1060px;margin:0 auto;padding:0 28px}

/* ============ NAV ============ */
nav.main-nav{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(14,23,38,.85);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav-in{max-width:1060px;margin:0 auto;padding:0 28px;height:58px;display:flex;align-items:center;justify-content:space-between}
.brand{font-family:var(--serif);font-size:17px;color:#fff;text-decoration:none;letter-spacing:.5px}
.brand em{font-style:normal;color:var(--sky)}
.nav-links{display:flex;gap:4px;list-style:none}
.nav-links a{color:#b9c5d2;text-decoration:none;font-size:13px;letter-spacing:.8px;text-transform:uppercase;padding:8px 13px;border-radius:6px;transition:color .2s,background .2s}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.09)}
@media(max-width:820px){.nav-links{display:none}}

/* ============ HERO ============ */
header.hero{background:radial-gradient(700px 420px at 85% -10%, rgba(74,144,201,.18), transparent 65%),radial-gradient(560px 400px at -8% 110%, rgba(15,76,129,.35), transparent 60%),linear-gradient(165deg,#0e1726 0%,#14203a 60%,#0f2036 100%);color:#fff;padding:158px 0 96px;position:relative;overflow:hidden}
header.hero::after{content:'';position:absolute;inset:auto 0 0 0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent)}
.kicker{font-size:12px;letter-spacing:4.5px;text-transform:uppercase;color:var(--sky);margin-bottom:22px;font-weight:600}
.kicker::before{content:'';display:inline-block;width:36px;height:1px;background:var(--sky);vertical-align:middle;margin-right:14px;opacity:.7}
h1{font-family:var(--serif);font-weight:500;font-size:clamp(38px,6vw,60px);line-height:1.08;letter-spacing:-.5px;max-width:14ch}
.lede{margin-top:26px;font-size:clamp(17px,2.2vw,20px);color:#aebccb;max-width:56ch;font-weight:300}
.lede b,.lede strong{color:#e8eef4;font-weight:600}
.hero-meta{margin-top:20px;font-size:14px;color:#7e8ea0;letter-spacing:.4px}
.hero-meta span+span::before{content:'·';margin:0 12px;color:#44536a}
.cta-row{margin-top:40px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:8px;font-size:14.5px;font-weight:600;text-decoration:none;letter-spacing:.3px;transition:transform .18s,box-shadow .18s,background .18s}
.btn-solid{background:#fff;color:var(--ink)}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(0,0,0,.35)}
.btn-ghost{border:1px solid rgba(255,255,255,.28);color:#e8eef4}
.btn-ghost:hover{background:rgba(255,255,255,.08);transform:translateY(-2px)}

/* ============ STATS ============ */
.stats{background:var(--ink-2);color:#fff;border-top:1px solid rgba(255,255,255,.06)}
.stats-in{max-width:1060px;margin:0 auto;padding:0 28px;display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:34px 10px;text-align:center;position:relative}
.stat+.stat::before{content:'';position:absolute;left:0;top:28%;bottom:28%;width:1px;background:rgba(255,255,255,.12)}
.stat .num{font-family:var(--serif);font-size:36px;color:#fff}
.stat .num i{font-style:normal;color:var(--sky);font-size:26px}
.stat .lbl{font-size:11.5px;letter-spacing:2.4px;text-transform:uppercase;color:#7e8ea0;margin-top:6px}
@media(max-width:640px){.stats-in{grid-template-columns:1fr 1fr}.stat:nth-child(3)::before{display:none}}

/* ============ SECTIONS ============ */
section{padding:88px 0 8px}
.sec-head{margin-bottom:44px}
.sec-kicker{font-size:12px;letter-spacing:4px;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:10px}
.sec-head h2{font-family:var(--serif);font-weight:500;font-size:clamp(28px,3.6vw,36px);color:var(--ink);letter-spacing:-.3px}
.sec-head p{margin-top:12px;color:var(--text-2);max-width:62ch;font-size:16px}

/* ============ ABOUT ============ */
.about-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:48px;align-items:start}
@media(max-width:820px){.about-grid{grid-template-columns:1fr}}
.about-copy p{margin-bottom:18px;font-size:16.5px;color:#37414e}
.about-copy .pull,.about-copy blockquote{font-family:var(--serif);font-size:21px;color:var(--ink);line-height:1.5;border-left:3px solid var(--gold);padding-left:22px;margin:26px 0}
.facts{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:28px 28px 14px}
.facts h3{font-size:12px;letter-spacing:2.6px;text-transform:uppercase;color:var(--text-2);margin-bottom:18px}
.fact{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-top:1px solid var(--line);font-size:14.5px}
.fact dt{color:var(--text-2)}
.fact dd{color:var(--ink);font-weight:600;text-align:right}

/* ============ PROJECTS ============ */
#projects{background:linear-gradient(180deg,var(--paper),#f2f5f8 12%,#f2f5f8 88%,var(--paper))}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px}
.chip{font-size:13px;font-weight:600;letter-spacing:.6px;padding:8px 20px;border-radius:99px;cursor:pointer;border:1px solid #c9d4de;background:#fff;color:var(--text-2);transition:all .18s}
.chip:hover{border-color:var(--accent);color:var(--accent)}
.chip.on{background:var(--ink);border-color:var(--ink);color:#fff}
.proj-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
@media(max-width:820px){.proj-grid{grid-template-columns:1fr}}
.proj{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:30px 32px;position:relative;overflow:hidden;transition:transform .22s,box-shadow .22s;display:flex;flex-direction:column}
.proj:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}
.proj::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--sky));opacity:0;transition:opacity .22s}
.proj:hover::before{opacity:1}
.proj.hide{display:none}
.proj.feat{grid-column:1/-1}
.proj-top{display:flex;align-items:baseline;justify-content:space-between;gap:14px;flex-wrap:wrap}
.proj h3{font-family:var(--serif);font-weight:600;font-size:21px;color:var(--ink);letter-spacing:-.2px}
.proj h3 a{color:inherit;text-decoration:none}
.proj h3 a:hover{color:var(--accent)}
.cat{font-size:10.5px;font-weight:700;letter-spacing:1.6px;text-transform:uppercase;padding:4px 12px;border-radius:99px;white-space:nowrap}
.cat.ai{background:#f1e8fb;color:#6b21a8}
.cat.iot{background:#e3f5ee;color:#0f766e}
.cat.cloud{background:var(--accent-soft);color:var(--accent)}
.cat.web{background:#fdf1e3;color:#b45309}
.proj .role{font-size:12.5px;color:var(--gold);font-weight:700;letter-spacing:1.4px;text-transform:uppercase;margin-top:6px}
.proj p{font-size:15px;color:#42505e;margin-top:12px}
.proj ul{list-style:none;margin-top:14px}
.proj li{padding:5px 0 5px 22px;position:relative;font-size:14px;color:#42505e}
.proj li::before{content:'—';position:absolute;left:0;color:var(--sky)}
.stack{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:20px}
.tag{font-size:12px;font-weight:600;color:var(--accent);background:var(--accent-soft);padding:4px 12px;border-radius:6px}
.feat-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:36px;align-items:start}
@media(max-width:820px){.feat-grid{grid-template-columns:1fr}}
.feat-aside{background:var(--ink);border-radius:10px;padding:22px 24px;color:#c3cfdc}
.feat-aside h4{font-size:11px;letter-spacing:2.4px;text-transform:uppercase;color:var(--sky);margin-bottom:14px}
.feat-aside code{display:block;font-family:'Cascadia Code','SF Mono',Consolas,monospace;font-size:12.5px;line-height:1.75;color:#dbe5ee;white-space:pre;overflow-x:auto}

/* ============ EXPERTISE ============ */
.exp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:820px){.exp-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.exp-grid{grid-template-columns:1fr}}
.exp{border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:26px 26px 24px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.exp:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}
.exp .ico{width:42px;height:42px;border-radius:10px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.exp .ico svg{width:21px;height:21px;stroke:var(--accent);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.exp h3{font-size:16.5px;color:var(--ink);font-weight:650;margin-bottom:7px}
.exp p{font-size:13.8px;color:var(--text-2)}

/* ============ EXPERIENCE ============ */
.tl{list-style:none;position:relative;margin-left:6px}
.tl::before{content:'';position:absolute;left:0;top:6px;bottom:6px;width:1.5px;background:linear-gradient(var(--accent),#c9d7e4)}
.tl li{position:relative;padding:0 0 40px 40px}
.tl li::before{content:'';position:absolute;left:-5.5px;top:5px;width:12px;height:12px;border-radius:50%;background:#fff;border:2.5px solid var(--accent)}
.tl .when{font-size:12px;font-weight:700;color:var(--gold);letter-spacing:2px;text-transform:uppercase}
.tl h3{font-family:var(--serif);font-weight:600;font-size:20px;color:var(--ink);margin-top:4px}
.tl .where{font-size:14.5px;color:var(--text-2);margin-top:2px}
.tl p{font-size:14.5px;color:#42505e;margin-top:9px;max-width:70ch}

/* ============ CREDENTIALS ============ */
.cred-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:820px){.cred-grid{grid-template-columns:1fr 1fr}}
.cred{border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:18px 20px;display:flex;gap:14px;align-items:center;box-shadow:var(--shadow)}
.cred .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);flex:none}
.cred b{display:block;font-size:14.5px;color:var(--ink)}
.cred span{font-size:12.8px;color:var(--text-2)}
.edu{margin-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:640px){.edu{grid-template-columns:1fr}}
.edu .cred{border-left:3px solid var(--gold)}

/* ============ CONTACT ============ */
#contact{padding:96px 0 90px;background:radial-gradient(600px 380px at 15% 0%, rgba(74,144,201,.15), transparent 60%),linear-gradient(165deg,#0e1726,#13223c);color:#fff;margin-top:88px}
#contact .sec-kicker{color:var(--sky)}
#contact h2{font-family:var(--serif);font-weight:500;font-size:clamp(30px,4vw,42px);letter-spacing:-.3px;max-width:22ch}
#contact .sub{margin-top:16px;color:#aebccb;font-size:17px;max-width:56ch;font-weight:300}
.contact-row{margin-top:38px;display:flex;gap:14px;flex-wrap:wrap}
.contact-links{margin-top:44px;display:flex;gap:28px;flex-wrap:wrap;font-size:14.5px}
.contact-links a{color:#8fc1ea;text-decoration:none;border-bottom:1px solid rgba(143,193,234,.35);padding-bottom:2px}
.contact-links a:hover{color:#fff;border-color:#fff}
footer.site-footer{background:var(--ink);color:#5f7189;text-align:center;font-size:13px;padding:26px 20px}

/* ============ REVEAL ============ */
html.js .rv{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
html.js .rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .proj,.exp,.btn{transition:none}
}

/* ============ DETAIL PROJECT / ARTIKEL ============ */
.article-hero{background:linear-gradient(165deg,#0e1726 0%,#14203a 60%,#0f2036 100%);color:#fff;padding:120px 0 56px}
.article-hero h1{max-width:24ch;font-size:clamp(30px,4.6vw,44px)}
.article-hero .meta{margin-top:14px;color:#7e8ea0;font-size:14px}
.article-body{padding:54px 0 80px;max-width:760px;margin:0 auto}
.article-body img{max-width:100%;height:auto;border-radius:10px;box-shadow:var(--shadow)}
.article-body h2,.article-body h3{font-family:var(--serif);color:var(--ink);margin:32px 0 12px}
.article-body p{margin:0 0 16px}
.article-body ul,.article-body ol{margin:0 0 16px 24px}
.article-body blockquote{font-family:var(--serif);font-size:19px;border-left:3px solid var(--gold);padding-left:20px;margin:24px 0;color:var(--ink)}
.article-body pre{background:var(--ink);color:#dbe5ee;border-radius:10px;padding:18px 20px;overflow-x:auto;font-size:13.5px;margin:0 0 16px}
.article-body code{font-family:'Cascadia Code','SF Mono',Consolas,monospace}
.article-body p code,.article-body li code{background:var(--accent-soft);color:var(--accent);padding:1px 6px;border-radius:4px;font-size:.9em}
.article-body table{border-collapse:collapse;width:100%;margin:0 0 16px}
.article-body td,.article-body th{border:1px solid var(--line);padding:8px 12px;font-size:14.5px}
.article-body th{background:var(--accent-soft)}
.back-link{display:inline-block;margin-bottom:8px;color:var(--sky);text-decoration:none;font-size:13.5px;letter-spacing:1px;text-transform:uppercase}
.preview-banner{background:#b45309;color:#fff;text-align:center;padding:8px;font-size:13px;position:sticky;top:0;z-index:60}

/* ============ SHARE PAGES ============ */
.share-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(165deg,#0e1726 0%,#14203a 60%,#0f2036 100%);padding:24px}
.share-card{background:var(--surface);border-radius:16px;box-shadow:var(--shadow-lift);max-width:420px;width:100%;padding:38px 36px;text-align:center}
.share-card .lock{width:52px;height:52px;border-radius:14px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;margin:0 auto 18px}
.share-card .lock svg{width:26px;height:26px;stroke:var(--accent);fill:none;stroke-width:1.8;stroke-linecap:round}
.share-card h1{font-size:22px;max-width:none;font-family:var(--serif);color:var(--ink)}
.share-card p{color:var(--text-2);font-size:14.5px;margin-top:8px}
.share-card form{margin-top:22px}
.share-card input[type=password]{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:8px;font-size:15px}
.share-card input[type=password]:focus{border-color:var(--accent);outline:none}
.share-card button{margin-top:14px;width:100%;padding:12px;border:0;border-radius:8px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;cursor:pointer}
.share-card button:hover{background:#0d4271}
.share-card .err{margin-top:12px;color:#b91c1c;font-size:13.5px}
.share-card .badge{display:inline-block;margin-top:16px;font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--text-2)}