*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root, [data-theme="light"] {
  --cream: #f2ede8;
  --ink: #2b2d35;
  --ink-soft: #5c5f6e;
  --accent: #c9613a;
  --glass: rgba(240,236,230,0.72);
  --glass-border: rgba(255,255,255,0.85);
  --shadow: 0 8px 40px rgba(43,45,53,0.10);
  --shadow-hover: 0 20px 60px rgba(43,45,53,0.18);
  --c-red:    #c9613a;
  --c-blue:   #4d8aa8;
  --c-green:  #5ea67a;
  --c-yellow: #d4a24e;
  --c-purple: #8b7ab8;
  --overlay-start: rgba(242,237,232,0.82);
  --overlay-mid:   rgba(230,225,220,0.65);
  --overlay-end:   rgba(232,228,224,0.75);
  --line-fill: rgba(43,45,53,0.10);
  --pill-bg: rgba(43,45,53,0.06);
  --search-bg: rgba(240,236,230,0.72);
  --code-bg: rgba(43,45,53,0.05);
  --code-border: rgba(43,45,53,0.10);
  --step-line: rgba(43,45,53,0.08);
  --callout-info: rgba(77,138,168,0.10);
  --callout-warn: rgba(212,162,78,0.12);
  --callout-danger: rgba(201,97,58,0.10);
}

[data-theme="dark"] {
  --cream: #0c0810;
  --ink: #f5ede8;
  --ink-soft: #a89faa;
  --accent: #e84040;
  --glass: rgba(20,10,18,0.72);
  --glass-border: rgba(220,80,80,0.14);
  --shadow: 0 8px 40px rgba(0,0,0,0.50);
  --shadow-hover: 0 20px 60px rgba(180,20,20,0.30);
  --c-red:    #e84040;
  --c-blue:   #4ac8f0;
  --c-green:  #50d494;
  --c-yellow: #f0b030;
  --c-purple: #c080f8;
  --overlay-start: rgba(12,8,16,0.42);
  --overlay-mid:   rgba(12,8,16,0.34);
  --overlay-end:   rgba(12,8,16,0.40);
  --line-fill: rgba(232,64,64,0.18);
  --pill-bg: rgba(232,64,64,0.08);
  --search-bg: rgba(20,10,18,0.72);
  --code-bg: rgba(255,255,255,0.04);
  --code-border: rgba(255,255,255,0.10);
  --step-line: rgba(255,255,255,0.08);
  --callout-info: rgba(74,200,240,0.10);
  --callout-warn: rgba(240,176,48,0.10);
  --callout-danger: rgba(232,64,64,0.10);
}

html { scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--cream);
  color: var(--ink);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background 0.35s ease, color 0.35s ease;
}

.bg-layer { position:fixed;inset:0;background:var(--cream);z-index:0;transition:background 0.35s; }
.bg-overlay {
  position:fixed;inset:0;
  background:linear-gradient(160deg,var(--overlay-start) 0%,var(--overlay-mid) 40%,var(--overlay-end) 100%);
  z-index:1;transition:background 0.35s ease;
}

.blob {
  position:fixed;border-radius:50%;filter:blur(80px);opacity:0.20;
  pointer-events:none;z-index:2;
  animation:drift 18s ease-in-out infinite alternate;transition:opacity 0.35s ease;
}
[data-theme="dark"] .blob { opacity:0.12; }
.blob-1{width:520px;height:520px;background:#c9613a;top:-140px;left:-100px;animation-delay:0s;}
.blob-2{width:440px;height:440px;background:#4d8aa8;bottom:-80px;right:-80px;animation-delay:-6s;}
.blob-3{width:320px;height:320px;background:#d4a24e;top:40%;left:60%;animation-delay:-12s;}
[data-theme="dark"] .blob-1{background:#c01020;}
[data-theme="dark"] .blob-2{background:#1888c8;}
[data-theme="dark"] .blob-3{background:#e08020;}
@keyframes drift{from{transform:translate(0,0) scale(1);}to{transform:translate(30px,20px) scale(1.06);}}

.page {
  position:relative;z-index:10;
  max-width:1140px;margin:0 auto;
  padding:0 28px 100px;
}

nav {
  display:flex;align-items:center;justify-content:space-between;
  padding:24px 0 16px;
  position:sticky;top:0;z-index:100;
  animation:fadeDown 0.6s ease both;
}
.logo {
  font-family:'Fraunces',serif;font-size:1.6rem;font-weight:700;
  color:var(--ink);letter-spacing:-0.5px;text-decoration:none;
  display:flex;align-items:baseline;gap:0;transition:color 0.35s ease;
}
.logo span{color:var(--accent);}
.logo-badge {
  font-family:'DM Mono',monospace;font-size:0.6rem;font-weight:500;
  color:var(--ink-soft);border:1.5px solid var(--code-border);
  padding:2px 8px;border-radius:50px;letter-spacing:0.1em;
  text-transform:uppercase;margin-left:10px;align-self:center;
}
.nav-right{display:flex;align-items:center;gap:10px;}
.nav-pill {
  display:flex;gap:4px;align-items:center;
  background:var(--glass);border:1.5px solid var(--glass-border);
  border-radius:50px;padding:5px 8px;box-shadow:var(--shadow);
  backdrop-filter:blur(14px);flex-wrap:wrap;
  transition:background 0.35s ease,border-color 0.35s ease;
}
.nav-pill a {
  font-size:0.82rem;font-weight:500;color:var(--ink-soft);
  text-decoration:none;padding:6px 14px;border-radius:50px;
  transition:background 0.2s,color 0.2s;white-space:nowrap;
}
.nav-pill a:hover,.nav-pill a.active{background:var(--accent);color:#fff;}

.theme-toggle {
  display:flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;
  background:var(--glass);border:1.5px solid var(--glass-border);
  box-shadow:var(--shadow);backdrop-filter:blur(14px);
  cursor:pointer;color:var(--ink-soft);font-size:1rem;
  transition:background 0.2s,color 0.2s,transform 0.25s,border-color 0.35s ease;
  user-select:none;flex-shrink:0;
}
.theme-toggle:hover{background:var(--accent);color:#fff;transform:rotate(20deg) scale(1.1);border-color:var(--accent);}

.hero{padding:60px 0 44px;animation:fadeUp 0.7s 0.1s ease both;}
.hero-tag {
  display:inline-flex;align-items:center;gap:8px;
  font-family:'DM Mono',monospace;font-size:0.72rem;font-weight:500;
  letter-spacing:0.14em;text-transform:uppercase;color:var(--accent);
  background:color-mix(in srgb,var(--accent) 10%,transparent);
  border:1.5px solid color-mix(in srgb,var(--accent) 25%,transparent);
  border-radius:50px;padding:5px 16px;margin-bottom:22px;
}
.hero h1 {
  font-family:'Fraunces',serif;
  font-size:clamp(2.4rem,5vw,3.8rem);font-weight:700;
  line-height:1.1;letter-spacing:-1.5px;margin-bottom:16px;
  color:var(--ink);transition:color 0.35s ease;
}
.hero h1 em{color:var(--accent);font-style:italic;}
.hero p{font-size:1.05rem;color:var(--ink-soft);max-width:500px;line-height:1.7;margin-bottom:32px;transition:color 0.35s ease;}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;}
.stat{display:flex;flex-direction:column;gap:2px;}
.stat-num{font-family:'Fraunces',serif;font-size:2rem;font-weight:700;color:var(--ink);letter-spacing:-1px;transition:color 0.35s ease;}
.stat-label{font-size:0.75rem;color:var(--ink-soft);text-transform:uppercase;letter-spacing:0.1em;font-weight:500;}

.rule{display:flex;align-items:center;gap:14px;margin:36px 0 32px;opacity:0.55;animation:fadeUp 0.6s 0.3s ease both;}
.rule-line{flex:1;height:1px;background:var(--line-fill);border-radius:2px;}
.rule-text{font-family:'Fraunces',serif;font-style:italic;font-size:0.9rem;color:var(--ink-soft);white-space:nowrap;}

.search-wrap{max-width:460px;position:relative;margin-bottom:0;animation:fadeUp 0.6s 0.2s ease both;}
.search-wrap input {
  width:100%;padding:14px 50px 14px 22px;border-radius:50px;
  border:1.5px solid var(--glass-border);background:var(--search-bg);
  backdrop-filter:blur(12px);font-family:'DM Sans',sans-serif;
  font-size:0.95rem;color:var(--ink);box-shadow:var(--shadow);outline:none;
  transition:border-color 0.2s,box-shadow 0.2s,background 0.35s ease,color 0.35s ease;
}
.search-wrap input::placeholder{color:var(--ink-soft);opacity:0.55;}
.search-wrap input:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 15%,transparent);}
.search-icon{position:absolute;right:18px;top:50%;transform:translateY(-50%);color:var(--ink-soft);pointer-events:none;font-size:0.95rem;opacity:0.5;}

.section-label {
  font-family:'Fraunces',serif;font-size:1.45rem;font-weight:500;
  color:var(--ink);margin:56px 0 24px;
  display:flex;align-items:center;gap:12px;
  animation:fadeUp 0.6s 0.15s ease both;transition:color 0.35s ease;
}
.section-label::after{content:'';flex:1;height:1.5px;background:linear-gradient(90deg,var(--line-fill) 0%,transparent 100%);border-radius:2px;}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px;}
.card {
  background:var(--glass);backdrop-filter:blur(14px);
  border:1.5px solid var(--glass-border);border-radius:22px;
  padding:26px 22px 22px;text-decoration:none;color:inherit;
  display:flex;flex-direction:column;gap:10px;box-shadow:var(--shadow);
  transition:transform 0.25s cubic-bezier(.22,1,.36,1),box-shadow 0.25s,border-color 0.2s,background 0.35s ease;
  cursor:pointer;position:relative;overflow:hidden;
  animation:fadeUp 0.55s ease both;
}
.card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;border-radius:22px 22px 0 0;opacity:0;transition:opacity 0.25s;}
.card:hover{transform:translateY(-6px) scale(1.02);box-shadow:var(--shadow-hover);}
.card:hover::before{opacity:1;}
.card-icon{font-size:1.15rem;line-height:1;width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.card-name{font-family:'Fraunces',serif;font-size:1.05rem;font-weight:500;color:var(--ink);line-height:1.3;transition:color 0.35s ease;}
.card-desc{font-size:0.81rem;color:var(--ink-soft);line-height:1.58;flex:1;transition:color 0.35s ease;}
.card-tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:4px;}
.tag{font-family:'DM Mono',monospace;font-size:0.65rem;font-weight:500;padding:3px 9px;border-radius:50px;border:1.5px solid;letter-spacing:0.04em;}
.card-arrow{font-size:0.76rem;font-weight:500;color:var(--ink-soft);display:flex;align-items:center;gap:6px;margin-top:4px;transition:gap 0.2s,color 0.2s;}
.card:hover .card-arrow{gap:10px;color:var(--accent);}

.c-red .card-icon{background:color-mix(in srgb,var(--c-red) 14%,transparent);color:var(--c-red);}
.c-blue .card-icon{background:color-mix(in srgb,var(--c-blue) 14%,transparent);color:var(--c-blue);}
.c-green .card-icon{background:color-mix(in srgb,var(--c-green) 14%,transparent);color:var(--c-green);}
.c-yellow .card-icon{background:color-mix(in srgb,var(--c-yellow) 18%,transparent);color:var(--c-yellow);}
.c-purple .card-icon{background:color-mix(in srgb,var(--c-purple) 14%,transparent);color:var(--c-purple);}
.c-red::before{background:linear-gradient(90deg,var(--c-red),color-mix(in srgb,var(--c-red) 50%,#fff));}
.c-blue::before{background:linear-gradient(90deg,var(--c-blue),color-mix(in srgb,var(--c-blue) 50%,#fff));}
.c-green::before{background:linear-gradient(90deg,var(--c-green),color-mix(in srgb,var(--c-green) 50%,#fff));}
.c-yellow::before{background:linear-gradient(90deg,var(--c-yellow),color-mix(in srgb,var(--c-yellow) 50%,#fff));}
.c-purple::before{background:linear-gradient(90deg,var(--c-purple),color-mix(in srgb,var(--c-purple) 50%,#fff));}
.c-red:hover{border-color:color-mix(in srgb,var(--c-red) 38%,transparent);}
.c-blue:hover{border-color:color-mix(in srgb,var(--c-blue) 38%,transparent);}
.c-green:hover{border-color:color-mix(in srgb,var(--c-green) 38%,transparent);}
.c-yellow:hover{border-color:color-mix(in srgb,var(--c-yellow) 38%,transparent);}
.c-purple:hover{border-color:color-mix(in srgb,var(--c-purple) 38%,transparent);}
.card:nth-child(1){animation-delay:.04s}.card:nth-child(2){animation-delay:.08s}
.card:nth-child(3){animation-delay:.12s}.card:nth-child(4){animation-delay:.16s}
.card:nth-child(5){animation-delay:.20s}.card:nth-child(6){animation-delay:.24s}

.tag-red{color:var(--c-red);border-color:color-mix(in srgb,var(--c-red) 30%,transparent);background:color-mix(in srgb,var(--c-red) 8%,transparent);}
.tag-blue{color:var(--c-blue);border-color:color-mix(in srgb,var(--c-blue) 30%,transparent);background:color-mix(in srgb,var(--c-blue) 8%,transparent);}
.tag-green{color:var(--c-green);border-color:color-mix(in srgb,var(--c-green) 30%,transparent);background:color-mix(in srgb,var(--c-green) 8%,transparent);}
.tag-yellow{color:var(--c-yellow);border-color:color-mix(in srgb,var(--c-yellow) 30%,transparent);background:color-mix(in srgb,var(--c-yellow) 8%,transparent);}
.tag-purple{color:var(--c-purple);border-color:color-mix(in srgb,var(--c-purple) 30%,transparent);background:color-mix(in srgb,var(--c-purple) 8%,transparent);}
.tag-soft{color:var(--ink-soft);border-color:var(--code-border);background:var(--pill-bg);}

.article{margin-top:72px;animation:fadeUp 0.6s ease both;}
.article-header{display:flex;align-items:center;gap:18px;margin-bottom:28px;padding-bottom:22px;border-bottom:1.5px solid var(--glass-border);}
.article-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;flex-shrink:0;}
.article-title{font-family:'Fraunces',serif;font-size:2rem;font-weight:700;color:var(--ink);letter-spacing:-0.5px;line-height:1.15;transition:color 0.35s ease;}
.article-sub{font-size:0.78rem;color:var(--ink-soft);letter-spacing:0.1em;text-transform:uppercase;font-weight:500;margin-top:4px;}
.article > p{font-size:0.92rem;color:var(--ink-soft);line-height:1.8;margin-bottom:1rem;transition:color 0.35s ease;}

.tech-stack{display:flex;flex-wrap:wrap;gap:8px;margin:1.25rem 0;}
.tech-pill{display:flex;align-items:center;gap:7px;background:var(--glass);backdrop-filter:blur(10px);border:1.5px solid var(--glass-border);border-radius:50px;padding:6px 14px;box-shadow:var(--shadow);font-size:0.8rem;font-weight:500;color:var(--ink);transition:background 0.35s ease,border-color 0.35s ease,color 0.35s ease;}
.tech-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0;}

.step-list{list-style:none;margin:1.5rem 0;}
.step-item{display:flex;gap:18px;padding:18px 0;border-bottom:1.5px solid var(--step-line);}
.step-item:last-child{border-bottom:none;}
.step-num{font-family:'DM Mono',monospace;font-size:0.7rem;color:var(--accent);font-weight:500;padding-top:3px;flex-shrink:0;width:28px;letter-spacing:0.05em;}
.step-title{font-family:'Fraunces',serif;font-size:0.98rem;font-weight:500;color:var(--ink);margin-bottom:5px;transition:color 0.35s ease;}
.step-desc{font-size:0.83rem;color:var(--ink-soft);line-height:1.65;font-weight:400;transition:color 0.35s ease;}

.code-block{background:var(--code-bg);border:1.5px solid var(--code-border);border-radius:18px;overflow:hidden;margin:1.5rem 0;box-shadow:var(--shadow);}
.code-header{display:flex;align-items:center;justify-content:space-between;padding:10px 18px;border-bottom:1.5px solid var(--code-border);background:color-mix(in srgb,var(--cream) 60%,transparent);}
.code-lang{font-family:'DM Mono',monospace;font-size:0.66rem;color:var(--ink-soft);letter-spacing:0.1em;text-transform:uppercase;font-weight:500;}
.code-copy{font-family:'DM Sans',sans-serif;font-size:0.7rem;font-weight:600;color:var(--ink-soft);background:none;border:none;cursor:pointer;letter-spacing:0.06em;text-transform:uppercase;padding:4px 10px;border-radius:50px;transition:background 0.2s,color 0.2s;}
.code-copy:hover{background:var(--accent);color:#fff;}
.code-body{padding:1.25rem 1.5rem;overflow-x:auto;}
.code-body pre{font-family:'DM Mono',monospace;font-size:0.81rem;line-height:1.75;color:var(--ink-soft);white-space:pre;}
.kw{color:var(--c-blue);}.str{color:var(--c-green);}.cm{color:var(--ink-soft);opacity:0.5;font-style:italic;}.fn{color:var(--c-red);}.num{color:var(--c-purple);}

.callout{border-left:3px solid var(--c-blue);background:var(--callout-info);border-radius:0 14px 14px 0;padding:14px 18px;margin:1.5rem 0;}
.callout.warn{border-color:var(--c-yellow);background:var(--callout-warn);}
.callout.danger{border-color:var(--c-red);background:var(--callout-danger);}
.callout-title{font-family:'Fraunces',serif;font-size:0.9rem;font-weight:500;color:var(--ink);margin-bottom:5px;display:flex;align-items:center;gap:8px;transition:color 0.35s ease;}
.callout p{font-size:0.83rem;color:var(--ink-soft);line-height:1.6;margin:0;}

.diff-table{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:0.82rem;background:var(--glass);backdrop-filter:blur(12px);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);}
.diff-table th{text-align:left;font-size:0.66rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--ink-soft);font-weight:600;padding:12px 18px;border-bottom:1.5px solid var(--glass-border);background:color-mix(in srgb,var(--cream) 40%,transparent);}
.diff-table td{padding:12px 18px;color:var(--ink-soft);border-bottom:1.5px solid var(--step-line);line-height:1.5;vertical-align:top;}
.diff-table tr:last-child td{border-bottom:none;}
.diff-table tr:hover td{background:color-mix(in srgb,var(--accent) 4%,transparent);}
.diff-table td:first-child{font-family:'Fraunces',serif;font-weight:500;color:var(--ink);font-size:0.9rem;}
.chk{color:var(--c-green);}.crs{color:var(--c-red);}

footer{text-align:center;padding:60px 0 0;color:var(--ink-soft);font-size:0.83rem;opacity:0.7;transition:color 0.35s ease;}

@keyframes fadeUp{from{opacity:0;transform:translateY(22px);}to{opacity:1;transform:translateY(0);}}
@keyframes fadeDown{from{opacity:0;transform:translateY(-14px);}to{opacity:1;transform:translateY(0);}}

@media(max-width:640px){
  .nav-pill{display:none;}
  .grid{grid-template-columns:1fr 1fr;gap:12px;}
  .hero h1{font-size:2.2rem;}
  .page{padding:0 16px 80px;}
}