/* ─── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: #07070d;
  color: #f0f0f8;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  overflow-x: hidden;
}
::selection { background: rgba(232,64,64,0.3); color: #f0f0f8; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #07070d; }
::-webkit-scrollbar-thumb { background: #252535; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #e84040; }

/* ─── Tokens ───────────────────────────────────────────────── */
:root {
  --bg-base:        #07070d;
  --bg-surface:     #0d0d18;
  --bg-elevated:    #12121e;
  --bg-highlight:   #181828;
  --border:         rgba(255,255,255,0.07);
  --border-strong:  rgba(255,255,255,0.13);
  --text-primary:   #f0f0f8;
  --text-secondary: #9090b4;
  --text-muted:     #48486a;
  --accent:         #e84040;
  --accent-light:   #ff6060;
  --accent-dim:     rgba(232,64,64,0.1);
  --accent-border:  rgba(232,64,64,0.28);
  --green:          #34d399;
  --green-dim:      rgba(52,211,153,0.1);
  --blue:           #60a5fa;
  --blue-dim:       rgba(96,165,250,0.1);
  --yellow:         #fbbf24;
  --yellow-dim:     rgba(251,191,36,0.1);
  --purple:         #a78bfa;
  --purple-dim:     rgba(167,139,250,0.1);
  --radius:         12px;
  --radius-sm:      8px;
  --radius-lg:      18px;
  --transition:     0.2s ease;
  --shadow:         0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg:      0 8px 48px rgba(0,0,0,0.7);
  --mono:           'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
}

/* ─── Layout ───────────────────────────────────────────────── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 96px 0; }
.section-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(26px, 3.8vw, 44px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.section-sub {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 540px;
}

/* ─── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
  line-height: 1;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(232,64,64,0.4);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-elevated);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-1px);
}

/* ─── Navbar ───────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 62px;
  display: flex;
  align-items: center;
  background: rgba(7,7,13,0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--text-primary);
}
.nav-brand-icon { font-size: 20px; line-height: 1; }
.nav-brand-name {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
}
.nav-brand-sep {
  color: var(--text-muted);
  font-size: 13px;
  font-style: italic;
  display: none;
}
@media (min-width: 600px) { .nav-brand-sep { display: block; } }

.nav-links {
  display: none;
  list-style: none;
  align-items: center;
  gap: 2px;
}
@media (min-width: 780px) { .nav-links { display: flex; } }
.nav-links a {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition);
}
.nav-links a:hover { color: var(--text-primary); background: var(--bg-elevated); }

.nav-cta { padding: 8px 15px; font-size: 13px; }
.nav-cta svg { flex-shrink: 0; }

/* ─── Hero ─────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.016) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.016) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 55% at 50% -5%, rgba(232,64,64,0.07), transparent),
    radial-gradient(ellipse 45% 40% at 95% 85%, rgba(96,165,250,0.04), transparent);
  pointer-events: none;
}
.hero .container {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
  align-items: center;
}
@media (min-width: 900px) {
  .hero .container { grid-template-columns: 1fr 1fr; gap: 64px; }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 13px;
  border-radius: 100px;
  border: 1px solid var(--accent-border);
  background: var(--accent-dim);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-light);
  letter-spacing: 0.03em;
  margin-bottom: 22px;
}
.hero-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.45; transform: scale(0.8); }
}
.hero-headline {
  font-size: clamp(36px, 5.5vw, 66px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 20px;
}
.hero-headline-accent {
  background: linear-gradient(130deg, var(--accent) 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 34px;
  max-width: 440px;
}
.hero-desc em { color: var(--text-primary); font-style: italic; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ─── Terminal ─────────────────────────────────────────────── */
.terminal-wrap {
  position: relative;
}
.terminal-wrap::before {
  content: '';
  position: absolute; inset: -24px;
  border-radius: var(--radius-lg);
  background: radial-gradient(ellipse at center, rgba(232,64,64,0.07), transparent 70%);
  pointer-events: none;
}
.terminal {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255,255,255,0.05);
  position: relative;
}
.terminal-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 13px 17px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}
.tdot { width: 11px; height: 11px; border-radius: 50%; }
.tdot.r { background: #ff5f57; }
.tdot.y { background: #ffbd2e; }
.tdot.g { background: #28c841; }
.terminal-title {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-left: 6px;
}
.terminal-body {
  padding: 20px 22px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.85;
  min-height: 340px;
}
.t-line { display: block; }
.t-blank { display: block; height: 7px; }
.t-prompt { color: var(--accent); }
.t-cmd    { color: var(--text-primary); font-weight: 600; }
.t-dim    { color: var(--text-muted); }
.t-ok     { color: var(--green); }
.t-info   { color: var(--blue); }
.t-white  { color: var(--text-primary); }
.t-em     { color: var(--text-secondary); font-style: italic; }
.t-hr     { color: var(--text-muted); }
.t-ind    { display: inline-block; width: 16px; }
.t-cursor {
  display: inline-block; width: 7px; height: 13px;
  background: var(--accent); border-radius: 2px;
  margin-left: 2px; vertical-align: middle;
  animation: blink 1.1s step-end infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* ─── Ladder ───────────────────────────────────────────────── */
.ladder {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.ladder-header { text-align: center; margin-bottom: 60px; }
.ladder-header .section-sub { margin: 0 auto; }

.ladder-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}
@media (min-width: 600px)  { .ladder-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .ladder-grid { grid-template-columns: repeat(4, 1fr); } }

.ladder-step {
  background: var(--bg-elevated);
  padding: 32px 26px;
  position: relative;
  transition: background var(--transition);
  overflow: hidden;
}
.ladder-step:hover { background: var(--bg-highlight); }
.ladder-step::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  opacity: 0; transition: opacity var(--transition);
}
.ladder-step:hover::after { opacity: 1; }
.ladder-step[data-lv="1"]::after { background: var(--blue); }
.ladder-step[data-lv="2"]::after { background: var(--yellow); }
.ladder-step[data-lv="3"]::after { background: var(--purple); }
.ladder-step[data-lv="4"]::after { background: var(--accent); }

.step-level {
  font-family: var(--mono);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 14px;
}
.step-icon  { font-size: 26px; display: block; margin-bottom: 11px; }
.step-name  { font-size: 19px; font-weight: 800; letter-spacing: -0.01em; color: var(--text-primary); margin-bottom: 8px; }
.step-rule  {
  font-family: var(--mono); font-size: 11px; font-weight: 500;
  padding: 5px 9px; border-radius: 5px; margin-bottom: 11px; display: inline-block;
}
.ladder-step[data-lv="1"] .step-rule { background: var(--blue-dim);   color: var(--blue); }
.ladder-step[data-lv="2"] .step-rule { background: var(--yellow-dim); color: var(--yellow); }
.ladder-step[data-lv="3"] .step-rule { background: var(--purple-dim); color: var(--purple); }
.ladder-step[data-lv="4"] .step-rule { background: var(--accent-dim); color: var(--accent-light); }
.step-desc  { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

.ladder-note {
  margin-top: 44px; text-align: center;
}
.ladder-note-inner {
  display: inline-block;
  padding: 16px 28px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  font-size: 14px; font-weight: 600; color: var(--accent-light);
}
.ladder-note-inner span { color: var(--text-secondary); font-weight: 400; }

/* ─── Features ─────────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 52px;
}
@media (min-width: 600px)  { .features-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .features-grid { grid-template-columns: repeat(4, 1fr); } }

.feat-card {
  background: var(--bg-surface);
  padding: 30px 26px;
  transition: background var(--transition);
}
.feat-card:hover { background: var(--bg-elevated); }
.feat-icon  { font-size: 26px; display: block; margin-bottom: 14px; }
.feat-title { font-size: 14px; font-weight: 700; color: var(--text-primary); margin-bottom: 7px; letter-spacing: -0.01em; }
.feat-desc  { font-size: 13px; color: var(--text-secondary); line-height: 1.65; }

/* ─── Roadmap ──────────────────────────────────────────────── */
.roadmap {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.roadmap-header { text-align: center; margin-bottom: 60px; }
.roadmap-header .section-sub { margin: 0 auto; }

.phases {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 640px)  { .phases { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1100px) { .phases { grid-template-columns: repeat(5, 1fr); } }

.phase-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elevated);
  transition: all var(--transition);
}
.phase-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.phase-head {
  padding: 14px 18px;
  display: flex; align-items: center; gap: 8px;
}
.phase-num  { font-family: var(--mono); font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.65; }
.phase-name { font-size: 12px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }

.phase-card[data-p="1"] .phase-head { background: var(--blue-dim);   color: var(--blue); }
.phase-card[data-p="2"] .phase-head { background: var(--purple-dim); color: var(--purple); }
.phase-card[data-p="3"] .phase-head { background: var(--yellow-dim); color: var(--yellow); }
.phase-card[data-p="4"] .phase-head { background: var(--accent-dim); color: var(--accent-light); }
.phase-card[data-p="5"] .phase-head { background: var(--green-dim);  color: var(--green); }

.phase-steps { list-style: none; padding: 14px 18px; display: flex; flex-direction: column; gap: 10px; }
.phase-step  { display: flex; align-items: flex-start; gap: 9px; }
.ps-num  { font-family: var(--mono); font-size: 10px; font-weight: 600; color: var(--text-muted); padding-top: 2px; min-width: 20px; }
.ps-name { font-size: 12px; font-weight: 600; color: var(--text-primary); line-height: 1.4; }
.ps-desc { font-size: 11px; color: var(--text-muted); margin-top: 2px; line-height: 1.4; }

/* ─── Commands ─────────────────────────────────────────────── */
.commands-list {
  display: flex; flex-direction: column; gap: 10px;
  margin-top: 52px;
}
.cmd-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px 22px;
  align-items: start;
  padding: 22px 26px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.cmd-card:hover {
  background: var(--bg-elevated);
  border-color: var(--border-strong);
  transform: translateX(3px);
}
.cmd-badge {
  font-family: var(--mono); font-size: 12.5px; font-weight: 600;
  padding: 7px 13px;
  background: var(--accent-dim);
  color: var(--accent-light);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  letter-spacing: -0.01em;
  align-self: center;
}
.cmd-title { font-size: 14px; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; letter-spacing: -0.01em; }
.cmd-desc  { font-size: 13px; color: var(--text-secondary); line-height: 1.65; }
.cmd-tags  { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 9px; }
.cmd-tag   {
  font-size: 11px; font-weight: 500;
  padding: 3px 7px; border-radius: 4px;
  background: var(--bg-highlight); color: var(--text-muted);
  border: 1px solid var(--border);
}

/* ─── Domains ──────────────────────────────────────────────── */
.domains {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.domains-grid {
  display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: 52px;
}
@media (min-width: 600px)  { .domains-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .domains-grid { grid-template-columns: repeat(4, 1fr); } }

.domain-card {
  padding: 26px; background: var(--bg-elevated);
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: all var(--transition);
}
.domain-card:hover { border-color: var(--border-strong); transform: translateY(-3px); box-shadow: var(--shadow); }
.domain-icon { font-size: 30px; margin-bottom: 12px; display: block; }
.domain-name { font-size: 15px; font-weight: 700; color: var(--text-primary); margin-bottom: 3px; letter-spacing: -0.01em; }
.domain-type { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-muted); margin-bottom: 13px; }
.domain-list { list-style: none; display: flex; flex-direction: column; gap: 5px; }
.domain-list li {
  font-size: 12px; color: var(--text-secondary);
  display: flex; align-items: center; gap: 6px;
}
.domain-list li::before { content: '→'; color: var(--text-muted); font-size: 10px; }

/* ─── Setup ────────────────────────────────────────────────── */
.setup-body { margin-top: 44px; }
.setup-tabs {
  display: flex; gap: 3px;
  background: var(--bg-elevated);
  padding: 4px; border-radius: var(--radius-sm);
  width: fit-content; border: 1px solid var(--border);
  margin-bottom: 22px;
}
.setup-tab {
  padding: 8px 17px; border-radius: 6px;
  font-size: 13px; font-weight: 600;
  cursor: pointer; border: none;
  background: transparent; color: var(--text-muted);
  transition: all var(--transition);
}
.setup-tab:hover { color: var(--text-secondary); }
.setup-tab.active { background: var(--bg-highlight); color: var(--text-primary); box-shadow: 0 1px 4px rgba(0,0,0,0.4); }

.code-block {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  overflow: hidden;
}
.code-block-header {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 16px; border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}
.code-block-label { font-family: var(--mono); font-size: 11px; color: var(--text-muted); margin-left: 6px; }
.os-toggle {
  margin-left: auto;
  display: flex; gap: 3px;
  background: var(--bg-surface);
  padding: 3px; border-radius: 6px;
  border: 1px solid var(--border);
}
.os-btn {
  padding: 4px 11px; border-radius: 4px;
  font-size: 11px; font-weight: 600;
  font-family: var(--mono); cursor: pointer;
  border: none; background: transparent;
  color: var(--text-muted);
  transition: all var(--transition);
}
.os-btn.active { background: var(--bg-highlight); color: var(--text-primary); }
.cb-blank { height: 7px; }
.code-block-body {
  padding: 22px; font-family: var(--mono);
  font-size: 12.5px; line-height: 2; overflow-x: auto;
}
.cb-comment { color: var(--text-muted); }
.cb-cmd     { color: var(--text-primary); }
.cb-arg     { color: var(--blue); }
.cb-kw      { color: var(--purple); }

.setup-note {
  margin-top: 18px; padding: 14px 18px;
  background: var(--green-dim);
  border: 1px solid rgba(52,211,153,0.2);
  border-radius: var(--radius-sm);
  font-size: 13px; color: var(--green);
  display: flex; align-items: flex-start; gap: 9px;
}

/* ─── Footer ───────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--border); padding: 44px 0 32px; }
.footer .container {
  display: flex; flex-direction: column;
  gap: 22px; align-items: center; text-align: center;
}
@media (min-width: 768px) {
  .footer .container { flex-direction: row; justify-content: space-between; text-align: left; }
}
.footer-brand-name {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 15px; font-weight: 600;
  color: var(--text-primary); text-decoration: none; margin-bottom: 5px;
}
.footer-tagline { font-size: 12px; color: var(--text-muted); font-style: italic; }
.footer-links { display: flex; gap: 18px; list-style: none; flex-wrap: wrap; justify-content: center; }
.footer-links a { font-size: 13px; color: var(--text-muted); text-decoration: none; transition: color var(--transition); }
.footer-links a:hover { color: var(--text-primary); }
.footer-copy { font-size: 12px; color: var(--text-muted); line-height: 1.8; }