:root {
  --bg:       #ffffff;
  --bg2:      #f8fafc;
  --bg3:      #f1f5f9;
  --border:   #e2e8f0;
  --border2:  #cbd5e1;
  --text:     #1e293b;
  --text2:    #475569;
  --text3:    #94a3b8;
  --cyan:     #0284c7;
  --cyan2:    #0369a1;
  --green:    #059669;
  --green2:   #047857;
  --orange:   #ea580c;
  --orange2:  #c2410c;
  --purple:   #7c3aed;
  --red:      #dc2626;
  --white:    #0f172a;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* NAV */
nav {
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 52px; }
.nav-logo { font-family: var(--font-sans); font-weight: 800; font-size: 15px; color: var(--white); letter-spacing: -0.5px; text-decoration: none; }
.nav-logo span { color: var(--cyan); }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--text2); font-size: 15px; text-decoration: none; letter-spacing: 1px; transition: color 0.2s; }
.nav-links a:hover { color: var(--cyan); }
.nav-gh {
  display: flex; align-items: center; gap: 6px;
  background: var(--border); border: 1px solid var(--border2);
  color: var(--text); font-size: 15px; font-family: inherit;
  padding: 5px 12px; border-radius: 4px;
  text-decoration: none; transition: border-color 0.2s, color 0.2s;
}
.nav-gh:hover { border-color: var(--cyan); color: var(--cyan); }

/* HERO */
.hero { padding: 80px 0 60px; position: relative; overflow: hidden; }
.hero::before {
  content: '';
  position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 800px; height: 600px;
  background: radial-gradient(ellipse at center, rgba(2,132,199,0.05) 0%, transparent 70%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,212,255,0.06); border: 1px solid rgba(0,212,255,0.2);
  color: var(--cyan); font-size: 15px; letter-spacing: 2px;
  padding: 5px 14px; border-radius: 2px; margin-bottom: 28px;
}
.hero-badge::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan); box-shadow: 0 0 8px var(--cyan);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero h1 {
  font-family: var(--font-sans);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 800; color: var(--white);
  letter-spacing: -2px; line-height: 1.0; margin-bottom: 16px;
}
.hero h1 em { font-style: normal; color: var(--cyan); }
.hero-sub-ko { font-size: 15px; color: var(--text3); margin-bottom: 6px; letter-spacing: 0.5px; }
.hero-sub { font-size: 15px; color: var(--text2); max-width: 580px; line-height: 1.7; margin-bottom: 44px; }

/* INSTALL BLOCK */
.install-block {
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: 6px; overflow: hidden; max-width: 680px;
  margin-bottom: 8px; box-shadow: 0 0 40px rgba(0,212,255,0.06);
}
.install-block + .install-block { margin-top: 0; }
.install-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 16px; border-bottom: 1px solid var(--border);
  background: var(--bg3);
}
.install-bar-dots { display: flex; gap: 6px; }
.install-bar-dots span { width: 10px; height: 10px; border-radius: 50%; background: var(--border2); }
.install-bar-label { font-size: 14.5px; color: var(--text3); letter-spacing: 1px; }
.install-cmd { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; gap: 12px; }
.install-cmd code { color: var(--green); font-size: 15.5px; word-break: break-all; }
.install-cmd code .dim { color: var(--text3); }
.install-cmd code .url { color: var(--cyan); }
.install-cmd code .kw { color: var(--orange); }
.copy-btn {
  flex-shrink: 0;
  background: rgba(0,232,122,0.08); border: 1px solid rgba(0,232,122,0.25);
  color: var(--green); font-family: inherit; font-size: 15px;
  padding: 6px 14px; border-radius: 3px; cursor: pointer; letter-spacing: 1px;
  transition: background 0.2s, border-color 0.2s; white-space: nowrap;
}
.copy-btn:hover { background: rgba(0,232,122,0.15); border-color: var(--green); }
.copy-btn.copied { color: var(--cyan); border-color: var(--cyan); background: rgba(0,212,255,0.1); }
.dl-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--cyan); color: #fff; text-decoration: none;
  font-family: inherit; font-size: 15.5px; font-weight: 600;
  padding: 10px 18px; border-radius: 6px; border: 1px solid var(--cyan2);
  transition: background 0.2s, transform 0.1s; white-space: nowrap;
}
.dl-btn:hover { background: var(--cyan2); }
.dl-btn:active { transform: translateY(1px); }
.dl-btn.sm { font-size: 15px; padding: 7px 14px; }
.dl-btn .dl-sub { font-weight: 400; font-size: 15px; opacity: 0.85; }
.win-dl {
  display: flex; align-items: center; flex-wrap: wrap; gap: 12px 16px;
  margin: 18px 0 6px; padding: 14px 16px;
  background: var(--bg2); border: 1px solid var(--border); border-radius: 8px;
}
.win-dl-text { font-size: 15px; color: var(--text2); line-height: 1.6; flex: 1 1 260px; }
.win-dl-text strong { color: var(--white); }
.win-dl-text code { word-break: break-all; }
.win-dl.hero { max-width: 680px; margin-top: 10px; }
.install-note { font-size: 15px; color: var(--text3); letter-spacing: 0.5px; margin-bottom: 48px; margin-top: 10px; }
.install-note a { color: var(--text2); text-decoration: none; }
.install-note a:hover { color: var(--cyan); }

/* WHAT GRID */
.what-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--border); border: 1px solid var(--border);
  border-radius: 6px; overflow: hidden; margin-bottom: 80px;
}
.what-item { background: var(--bg); padding: 24px 22px; }
.what-item-label { font-size: 14.5px; letter-spacing: 2px; color: var(--text3); margin-bottom: 8px; text-transform: uppercase; }
.what-item-title { font-family: var(--font-sans); font-size: 15px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.what-item p { font-size: 15px; color: var(--text2); line-height: 1.6; }

/* SECTION */
.section { margin-bottom: 80px; }
.section-header { display: flex; align-items: baseline; gap: 16px; margin-bottom: 24px; }
.section-num { font-family: var(--font-sans); font-size: 15px; font-weight: 800; letter-spacing: 3px; color: var(--text3); }
.section-title { font-family: var(--font-sans); font-size: 22px; font-weight: 700; color: var(--white); letter-spacing: -0.5px; }
.section-title em { font-style: normal; color: var(--cyan); }

/* TERMINAL MOCKUP */
.term {
  background: #0f172a; border: 1px solid #1e293b;
  border-radius: 4px; padding: 10px 12px; margin-top: 12px;
  font-size: 14.5px; line-height: 1.7; overflow: hidden;
}
.term .t-bar { display: flex; gap: 5px; margin-bottom: 8px; }
.term .t-dot { width: 7px; height: 7px; border-radius: 50%; }
.term .t-prompt { color: #475569; }
.term .t-cmd { color: #38bdf8; }
.term .t-ok { color: #34d399; }
.term .t-dim { color: #334155; }
.term .t-warn { color: #fb923c; }

/* PLATFORM GRID */
.platform-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
  margin-bottom: 80px;
}
.platform-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 6px; padding: 20px 22px;
  transition: border-color 0.2s;
}
.platform-card:hover { border-color: var(--border2); }
.platform-icon { font-size: 24px; margin-bottom: 10px; }
.platform-name { font-family: var(--font-sans); font-size: 16px; font-weight: 700; color: var(--white); margin-bottom: 4px; }
.platform-sub { font-size: 15px; color: var(--text3); margin-bottom: 10px; letter-spacing: 0.3px; }
.platform-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.platform-tag {
  font-size: 14.5px; letter-spacing: 1px; font-weight: 700;
  padding: 2px 7px; border-radius: 2px;
  background: var(--bg3); border: 1px solid var(--border); color: var(--text3);
}
.platform-tag.ok { background: rgba(5,150,105,0.08); border-color: rgba(5,150,105,0.25); color: var(--green); }
.platform-tag.docker { background: rgba(2,132,199,0.08); border-color: rgba(2,132,199,0.25); color: var(--cyan); }
.platform-tag.binary { background: rgba(234,88,12,0.08); border-color: rgba(234,88,12,0.25); color: var(--orange); }
.platform-status { display: flex; align-items: center; gap: 6px; margin-top: 10px; font-size: 14.5px; color: var(--text3); }
.platform-status .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 5px var(--green); }

/* ARCH BOX */
.arch-ascii {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 6px; padding: 32px 40px;
  font-size: 15px; color: var(--text2); line-height: 2;
  overflow-x: auto;
}
.arch-ascii .c1 { color: var(--cyan); font-weight: 700; }
.arch-ascii .c2 { color: var(--green); font-weight: 700; }
.arch-ascii .c3 { color: var(--orange); font-weight: 700; }
.arch-ascii .dim { color: var(--text3); }
.arch-ascii .arrow { color: var(--border2); }

/* INSTALL STEPS */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.step-header { padding: 16px 20px 12px; border-bottom: 1px solid var(--border); display: flex; align-items: flex-start; gap: 14px; }
.step-num-badge {
  width: 32px; height: 32px; border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-sans); font-size: 16px; font-weight: 800;
  flex-shrink: 0;
}
.step-num-badge.s1 { background: rgba(2,132,199,0.12); color: var(--cyan); }
.step-num-badge.s2 { background: rgba(5,150,105,0.12); color: var(--green); }
.step-num-badge.s3 { background: rgba(234,88,12,0.12); color: var(--orange); }
.step-header-text {}
.step-title { font-family: var(--font-sans); font-size: 16px; font-weight: 700; color: var(--white); }
.step-sub { font-size: 14.5px; color: var(--text3); letter-spacing: 0.5px; margin-top: 2px; }
.step-body { padding: 16px 20px; }
.step-cmd {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 3px; padding: 10px 12px;
  font-size: 15px; color: var(--green);
  cursor: pointer; display: block; width: 100%;
  font-family: inherit; text-align: left; margin-bottom: 8px;
  transition: border-color 0.15s, background 0.15s;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.step-cmd:last-of-type { margin-bottom: 0; }
.step-cmd:hover { border-color: var(--border2); background: var(--bg2); }
.step-cmd.cyan { color: var(--cyan); }
.step-cmd.orange { color: var(--orange); }
.step-note { margin-top: 12px; padding: 10px 12px; background: rgba(0,212,255,0.04); border: 1px solid rgba(0,212,255,0.1); border-radius: 3px; font-size: 14.5px; color: var(--text2); line-height: 1.6; }
.step-note strong { color: var(--cyan); }

/* PARALLEL FLOW */
.parallel-box {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 6px; padding: 28px 32px;
}
.parallel-timeline {
  display: flex; flex-direction: column; gap: 0;
}
.pt-row {
  display: grid; grid-template-columns: 80px 1fr;
  gap: 20px; position: relative;
}
.pt-row:not(:last-child)::after {
  content: '';
  position: absolute; left: 38px; top: 36px; bottom: 0;
  width: 1px; background: var(--border);
}
.pt-time {
  font-size: 14.5px; color: var(--text3); padding-top: 18px;
  text-align: right; letter-spacing: 0.5px;
}
.pt-content { padding: 14px 0 20px; }
.pt-label { font-size: 14.5px; letter-spacing: 2px; color: var(--text3); margin-bottom: 6px; text-transform: uppercase; }
.pt-agents { display: flex; gap: 10px; flex-wrap: wrap; }
.pt-agent {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 4px; padding: 8px 14px;
  font-size: 15px;
}
.pt-agent.active { border-color: var(--border2); }
.pt-agent .dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.pt-agent .dot.cyan   { background: var(--cyan); box-shadow: 0 0 6px var(--cyan); animation: pulse 2s infinite; }
.pt-agent .dot.orange { background: var(--orange); box-shadow: 0 0 6px var(--orange); animation: pulse 2s infinite; }
.pt-agent .dot.purple { background: var(--purple); box-shadow: 0 0 6px var(--purple); animation: pulse 2s infinite; }
.pt-agent .dot.green  { background: var(--green); box-shadow: 0 0 6px var(--green); animation: pulse 2s infinite; }
.pt-agent .dot.grey   { background: var(--border2); }
.pt-agent-name { color: var(--text); }
.pt-agent-task { color: var(--text3); font-size: 14.5px; }
.pt-arrow { color: var(--text3); margin: 0 4px; }
.pt-result {
  margin-top: 8px; padding: 8px 12px;
  background: rgba(0,232,122,0.04); border: 1px solid rgba(0,232,122,0.15);
  border-radius: 3px; font-size: 15px; color: var(--green2);
}
.pt-result strong { color: var(--green); }

/* ONE-LINER BLOCK */
.oneliner-block {
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: 6px; overflow: hidden;
}
.oneliner-row {
  display: grid; grid-template-columns: 120px 1fr auto;
  align-items: center; gap: 0;
  border-bottom: 1px solid var(--border);
  padding: 0;
}
.oneliner-row:last-child { border-bottom: none; }
.oneliner-label {
  padding: 14px 16px; font-size: 14.5px; color: var(--text3);
  letter-spacing: 1px; border-right: 1px solid var(--border);
  background: var(--bg3);
}
.oneliner-label .role-badge {
  display: inline-block; padding: 2px 6px; border-radius: 2px;
  font-size: 14.5px; font-weight: 700; letter-spacing: 1px; margin-bottom: 4px;
}
.oneliner-cmd { padding: 14px 16px; font-size: 15px; color: var(--green); word-break: break-all; }
.oneliner-cmd .dim { color: var(--text3); }
.oneliner-cmd .kw  { color: var(--cyan); }
.oneliner-cmd .val { color: var(--orange); }
.oneliner-copy {
  padding: 14px 16px;
  background: none; border: none; border-left: 1px solid var(--border);
  color: var(--text3); font-family: inherit; font-size: 14.5px;
  cursor: pointer; letter-spacing: 1px; white-space: nowrap;
  transition: color 0.2s;
}
.oneliner-copy:hover { color: var(--cyan); }

/* TABLE */
.table-wrap { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
table { width: 100%; border-collapse: collapse; }
thead { background: var(--bg2); }
th { padding: 10px 16px; font-size: 14.5px; font-weight: 700; color: var(--text3); letter-spacing: 2px; text-align: left; border-bottom: 1px solid var(--border); }
td { padding: 9px 16px; font-size: 15px; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: none; }
tr:nth-child(even) td { background: var(--bg2); }
.ev { color: var(--cyan); font-weight: 500; }
.dir { color: var(--text3); font-size: 14.5px; }
.desc { color: var(--text2); }
.payload { color: var(--green); font-size: 15px; }

/* CHIPS */
.chip { display: inline-block; padding: 2px 7px; border-radius: 2px; font-size: 14.5px; font-weight: 700; letter-spacing: 0.5px; }
.chip.cyan   { background: rgba(0,212,255,0.1); color: var(--cyan); }
.chip.green  { background: rgba(0,232,122,0.1); color: var(--green); }
.chip.orange { background: rgba(255,140,66,0.1); color: var(--orange); }
.chip.purple { background: rgba(140,107,255,0.1); color: var(--purple); }

/* SCREENSHOTS */
.ss-featured { width: 100%; border-radius: 10px; border: 1px solid var(--border2); display: block; margin-bottom: 16px; box-shadow: 0 4px 24px rgba(0,0,0,.08); }
.ss-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.ss-item { display: flex; flex-direction: column; gap: 8px; }
.ss-item img { width: 100%; border-radius: 8px; border: 1px solid var(--border); display: block; box-shadow: 0 2px 10px rgba(0,0,0,.06); transition: transform .2s, box-shadow .2s; cursor: zoom-in; }
.ss-item img:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,.12); }
.ss-caption { font-size: 15px; color: var(--text3); text-align: center; line-height: 1.4; }
.ss-caption strong { color: var(--text2); display: block; margin-bottom: 2px; }
@media (max-width: 900px) { .ss-grid { grid-template-columns: 1fr; } }

/* lightbox */
.lb-bg { display:none; position:fixed; inset:0; background:rgba(0,0,0,.85); z-index:9999; align-items:center; justify-content:center; cursor:zoom-out; }
.lb-bg.open { display:flex; }
.lb-img { max-width:92vw; max-height:90vh; border-radius:8px; box-shadow:0 8px 40px rgba(0,0,0,.5); }

/* CHANGELOG */
.cl-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.cl-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 20px 22px; }
.cl-card-ver { font-family: var(--font-sans); font-size: 16px; font-weight: 800; color: var(--white); letter-spacing: -0.3px; display: flex; align-items: center; gap: 8px; }
.cl-badge { font-size: 14.5px; font-weight: 700; padding: 2px 7px; border-radius: 20px; letter-spacing: .5px; background: var(--cyan); color: #fff; }
.cl-card-date { font-size: 14.5px; color: var(--text3); margin: 4px 0 12px; }
.cl-items { list-style: none; display: flex; flex-direction: column; gap: 7px; }
.cl-items li { font-size: 15px; color: var(--text2); display: flex; align-items: baseline; gap: 7px; line-height: 1.5; }
.cl-tag { font-size: 14.5px; font-weight: 700; padding: 1px 5px; border-radius: 3px; letter-spacing: .4px; flex-shrink: 0; text-transform: uppercase; }
.cl-tag.feat { background: rgba(2,132,199,.12); color: var(--cyan); }
.cl-tag.fix  { background: rgba(245,158,11,.12); color: #d97706; }
.cl-tag.sec  { background: rgba(220,38,38,.12);  color: var(--red); }
@media (max-width: 900px) { .cl-grid { grid-template-columns: 1fr; } }

/* FOR-WHO PERSONAS */
.fw-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 0; }
.fw-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 8px; padding: 24px 22px;
  transition: border-color 0.2s, transform 0.2s;
}
.fw-card:hover { border-color: var(--border2); transform: translateY(-2px); }
.fw-icon { font-size: 28px; margin-bottom: 12px; }
.fw-who { font-family: var(--font-sans); font-size: 15px; font-weight: 700; color: var(--white); margin-bottom: 6px; }
.fw-situation { font-size: 15px; color: var(--text3); margin-bottom: 12px; letter-spacing: 0.2px; }
.fw-pain { font-size: 15px; color: var(--text2); padding: 10px 12px; background: rgba(220,38,38,0.05); border: 1px solid rgba(220,38,38,0.12); border-radius: 4px; margin-bottom: 8px; line-height: 1.6; }
.fw-gain { font-size: 15px; color: var(--text2); padding: 10px 12px; background: rgba(5,150,105,0.05); border: 1px solid rgba(5,150,105,0.15); border-radius: 4px; line-height: 1.6; }
.fw-gain strong { color: var(--green); }
.fw-pain strong { color: var(--red); }
@media (max-width: 900px) { .fw-grid { grid-template-columns: 1fr; } }

/* HOW-IT-WORKS */
.how-row {
  display: grid; grid-template-columns: 1fr 40px 1fr 40px 1fr;
  gap: 0; align-items: stretch; margin-bottom: 0;
}
.how-step {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 8px; padding: 20px 18px;
}
.how-arrow {
  display: flex; align-items: center; justify-content: center;
  color: var(--border2); font-size: 20px;
}
.how-num { font-family: var(--font-sans); font-size: 15px; font-weight: 800; letter-spacing: 3px; color: var(--text3); margin-bottom: 6px; }
.how-title { font-family: var(--font-sans); font-size: 16px; font-weight: 700; color: var(--white); margin-bottom: 6px; }
.how-desc { font-size: 15px; color: var(--text2); line-height: 1.6; }
.how-code { margin-top: 10px; background: var(--bg3); border: 1px solid var(--border); border-radius: 3px; padding: 8px 10px; font-size: 14.5px; color: var(--green); word-break: break-all; }
.how-code .dim { color: var(--text3); }
.how-code .cyan { color: var(--cyan); }
@media (max-width: 900px) {
  .how-row { grid-template-columns: 1fr; }
  .how-arrow { transform: rotate(90deg); height: 32px; }
}

/* DEMO SECTION */
.demo-video-placeholder {
  width: 100%; aspect-ratio: 16/9;
  border: 2px dashed var(--border2); border-radius: 10px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: var(--bg2); margin-bottom: 48px; gap: 10px;
}
.demo-video-placeholder .dvp-icon { font-size: 40px; opacity: 0.4; }
.demo-video-placeholder .dvp-label { font-family: var(--font-sans); font-size: 16px; font-weight: 700; color: var(--text3); }
.demo-video-placeholder .dvp-sub { font-size: 15px; color: var(--text3); letter-spacing: 0.5px; }

.demo-scenes { display: flex; flex-direction: column; gap: 0; }
.demo-scene {
  display: grid; grid-template-columns: 260px 1fr;
  border: 1px solid var(--border); border-bottom: none; overflow: hidden;
}
.demo-scene:first-child { border-radius: 8px 8px 0 0; }
.demo-scene:last-child  { border-bottom: 1px solid var(--border); border-radius: 0 0 8px 8px; }
.demo-scene-shot {
  border-right: 1px solid var(--border); background: var(--bg3);
  display: flex; align-items: center; justify-content: center;
  min-height: 140px; position: relative; overflow: hidden;
}
.demo-scene-shot img { width: 100%; height: 100%; object-fit: cover; display: block; cursor: zoom-in; transition: transform 0.2s; }
.demo-scene-shot img:hover { transform: scale(1.03); }
.demo-scene-shot .shot-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 6px; padding: 20px; width: 100%; height: 100%;
}
.demo-scene-shot .shot-empty span { font-size: 22px; opacity: 0.3; }
.demo-scene-shot .shot-empty p { font-size: 14.5px; color: var(--text3); text-align: center; letter-spacing: 0.5px; }
.demo-scene-body { padding: 20px 24px; }
.demo-scene-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.demo-scene-num {
  font-family: var(--font-sans); font-size: 14.5px; font-weight: 800;
  letter-spacing: 2px; color: var(--text3);
}
.demo-scene-time { font-size: 14.5px; color: var(--text3); background: var(--bg3); padding: 2px 8px; border-radius: 20px; }
.demo-scene-title { font-family: var(--font-sans); font-size: 15px; font-weight: 700; color: var(--white); margin-bottom: 6px; }
.demo-scene-script { font-size: 15px; color: var(--text2); line-height: 1.7; }
.demo-scene-script .narr { font-style: italic; color: var(--text3); }
.demo-scene-script code { background: var(--bg3); padding: 1px 6px; border-radius: 3px; color: var(--green); font-size: 15px; }
.demo-scene-script .highlight { color: var(--cyan); font-weight: 600; }
@media (max-width: 700px) {
  .demo-scene { grid-template-columns: 1fr; }
  .demo-scene-shot { min-height: 100px; border-right: none; border-bottom: 1px solid var(--border); }
}

/* FOOTER */
footer { border-top: 1px solid var(--border); padding: 32px 0; margin-top: 40px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; }
.footer-left { font-size: 15px; color: var(--text3); }
.footer-left strong { color: var(--text2); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 15px; color: var(--text3); text-decoration: none; }
.footer-links a:hover { color: var(--cyan); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: 1fr; }
  .oneliner-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
  .nav-links { display: none; }
  .hero h1 { font-size: 32px; letter-spacing: -1px; }
}
@media (max-width: 600px) {
  .parallel-box { padding: 16px; }
  .arch-ascii { padding: 20px; }
}

/* ANIMATIONS */
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.hero > * { animation: fadeUp 0.6s ease both; }
.hero > *:nth-child(1) { animation-delay: 0.05s; }
.hero > *:nth-child(2) { animation-delay: 0.12s; }
.hero > *:nth-child(3) { animation-delay: 0.18s; }
.hero > *:nth-child(4) { animation-delay: 0.24s; }
.hero > *:nth-child(5) { animation-delay: 0.30s; }
.hero > *:nth-child(6) { animation-delay: 0.36s; }
.hero > *:nth-child(7) { animation-delay: 0.42s; }

/* ── 페이지 분리 이후 공통 ───────────────────────────────────────────── */
.nav-links a.active { color: var(--cyan); }
@media (max-width: 900px) {
  /* 모바일에서도 서브 페이지로 갈 수 있게 — 숨기지 않고 가로 스크롤 줄로 */
  .nav-inner { height: auto; flex-wrap: wrap; padding: 10px 0; row-gap: 8px; }
  .nav-links { display: flex !important; order: 3; width: 100%; gap: 18px; overflow-x: auto; padding-bottom: 2px; scrollbar-width: none; }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a { white-space: nowrap; }
}
.page-hero { padding: 56px 0 28px; }
.page-hero .crumb { font-size: 15px; color: var(--text3); text-decoration: none; }
.page-hero .crumb:hover { color: var(--cyan); }
.page-hero h1 { font-family: var(--font-sans); font-size: 34px; font-weight: 800; color: var(--white); letter-spacing: -1px; margin: 10px 0 8px; }
.page-hero p { color: var(--text2); font-size: 16px; max-width: 640px; line-height: 1.7; }

/* ── 모바일 넘침 방지 (서브 페이지의 기존 표·그리드) ─────────────────── */
@media (max-width: 600px) {
  .platform-grid { grid-template-columns: 1fr !important; }
  .section table { display: block; max-width: 100%; min-width: 0 !important; overflow-x: auto; }
}
@media (max-width: 600px) {
  .section code { word-break: break-all; white-space: normal; }
}