:root,[data-theme=light]{
  --color-bg:#fbfcfe;
  --color-surface:#ffffff;
  --color-surface-2:#f3f6fb;
  --color-surface-offset:#eef2f8;
  --color-border:#e0e6ef;
  --color-divider:#eaeff6;
  --color-text:#111826;
  --color-text-muted:#59637a;
  --color-text-faint:#98a2b6;
  --color-primary:#2f6df6;
  --color-primary-hover:#245ad6;
  --color-primary-soft:#e8f0ff;
  --color-code-bg:#0f1626;
  --color-code-text:#c7d2e6;
  --radius-sm:.375rem;--radius-md:.5rem;--radius-lg:.75rem;--radius-xl:1rem;--radius-full:9999px;
  --transition:180ms cubic-bezier(.16,1,.3,1);
  --shadow-sm:0 1px 2px rgba(17,24,38,.06);
  --shadow-md:0 6px 20px rgba(17,24,38,.08);
  --shadow-lg:0 20px 48px rgba(17,24,38,.14);
  --font-body:'Inter','system-ui',sans-serif;
  --font-mono:'JetBrains Mono','SFMono-Regular',monospace;
  --text-xs:clamp(.75rem,.7rem + .25vw,.875rem);
  --text-sm:clamp(.875rem,.82rem + .3vw,1rem);
  --text-base:clamp(1rem,.96rem + .2vw,1.0625rem);
  --text-lg:clamp(1.125rem,1rem + .6vw,1.375rem);
  --text-xl:clamp(1.5rem,1.2rem + 1.2vw,2.125rem);
  --text-2xl:clamp(2.1rem,1.4rem + 2.6vw,3.4rem);
  --wrap:1120px;
}
[data-theme=dark]{
  --color-bg:#0b0f18;
  --color-surface:#121826;
  --color-surface-2:#151d2e;
  --color-surface-offset:#0f1523;
  --color-border:#233049;
  --color-divider:#1a2334;
  --color-text:#e6ebf4;
  --color-text-muted:#98a4bd;
  --color-text-faint:#5f6c86;
  --color-primary:#5b8dff;
  --color-primary-hover:#7aa3ff;
  --color-primary-soft:#16233f;
  --color-code-bg:#0a0f1a;
  --color-code-text:#c7d2e6;
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);
  --shadow-md:0 6px 20px rgba(0,0,0,.5);
  --shadow-lg:0 20px 48px rgba(0,0,0,.6);
}
@media (prefers-color-scheme:dark){:root:not([data-theme]){--color-bg:#0b0f18;--color-surface:#121826;--color-surface-2:#151d2e;--color-border:#233049;--color-text:#e6ebf4;--color-text-muted:#98a4bd;--color-primary:#5b8dff}}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(1.25rem,4vw,2.5rem)}
.accent{color:var(--color-primary)}
em{font-style:normal;color:var(--color-primary);font-weight:600}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-size:var(--text-sm);font-weight:600;padding:.7rem 1.25rem;border-radius:var(--radius-md);text-decoration:none;border:1px solid transparent;white-space:nowrap;line-height:1}
.btn--sm{padding:.5rem .9rem}
.btn--full{width:100%}
.btn--primary{background:var(--color-primary);color:#fff}
.btn--primary:hover{background:var(--color-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn--ghost{background:var(--color-surface);color:var(--color-text);border-color:var(--color-border)}
.btn--ghost:hover{border-color:var(--color-primary);color:var(--color-primary)}

/* header */
.header{position:sticky;top:0;z-index:50;background:color-mix(in oklab,var(--color-bg) 88%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color var(--transition),box-shadow var(--transition)}
.header--scrolled{border-color:var(--color-divider);box-shadow:var(--shadow-sm)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:4rem;gap:1.5rem}
.brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--color-text)}
.brand__mark{color:var(--color-primary)}
.brand__name{font-family:var(--font-mono);font-weight:700;font-size:1.05rem;letter-spacing:-.02em}
.nav{display:flex;gap:1.75rem}
.nav a{color:var(--color-text-muted);text-decoration:none;font-size:var(--text-sm);font-weight:500}
.nav a:hover{color:var(--color-text)}
.header__actions{display:flex;align-items:center;gap:.75rem}
.icon-btn{display:grid;place-items:center;width:2.25rem;height:2.25rem;border-radius:var(--radius-md);color:var(--color-text-muted);border:1px solid var(--color-border)}
.icon-btn:hover{color:var(--color-text);border-color:var(--color-primary)}

/* hero */
.hero{padding-block:clamp(4rem,10vw,7.5rem) clamp(3rem,7vw,6rem);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(50rem 26rem at 78% -12%,var(--color-primary-soft),transparent 62%);
  opacity:.85;pointer-events:none}
.hero__grid{position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(currentColor .8px,transparent .8px);
  background-size:26px 26px;color:var(--color-border);
  -webkit-mask-image:radial-gradient(60rem 40rem at 65% -5%,#000,transparent 70%);
  mask-image:radial-gradient(60rem 40rem at 65% -5%,#000,transparent 70%)}
.hero__inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.hero__copy{max-width:38rem}
.eyebrow{display:inline-block;font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:.04em;text-transform:uppercase;color:var(--color-primary);background:var(--color-primary-soft);padding:.35rem .7rem;border-radius:var(--radius-full);margin-bottom:1.5rem}
.hero__title{font-size:var(--text-2xl);font-weight:700;letter-spacing:-.03em;line-height:1.08;margin-bottom:1.25rem}
.hero__lead{font-size:var(--text-lg);color:var(--color-text-muted);max-width:44ch;margin-bottom:2rem}
.hero__cta{display:flex;gap:.85rem;flex-wrap:wrap;margin-bottom:1.25rem}
.hero__cta .btn{padding:.85rem 1.6rem}
.hero__note{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-text-faint);margin-top:1.1rem}
.hero__preview{position:relative}
.terminal--hero{max-width:none;width:100%}
.terminal--hero .terminal__body{font-size:.8rem;white-space:pre}

/* install command */
.install{display:flex;align-items:stretch;gap:.5rem;max-width:32rem;margin-top:.5rem}
.install__cmd{flex:1;font-family:var(--font-mono);font-size:.8rem;color:var(--color-text);background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:.65rem .85rem;overflow-x:auto;white-space:nowrap;display:flex;align-items:center}
.install__cmd::before{content:"$";color:var(--color-text-faint);margin-right:.6rem}
.install__copy{font-family:var(--font-mono);font-size:var(--text-xs);font-weight:600;color:var(--color-text-muted);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:0 .9rem;cursor:pointer;transition:var(--transition)}
.install__copy:hover{color:var(--color-primary);border-color:var(--color-primary)}
.install__copy.is-copied{color:var(--color-primary);border-color:var(--color-primary);background:var(--color-primary-soft)}

/* sections */
.section{padding-block:clamp(3.5rem,8vw,7rem)}
.section--alt{background:var(--color-surface-offset);border-block:1px solid var(--color-divider)}
.section__head{max-width:42rem;margin-bottom:clamp(2.5rem,5vw,4rem)}
.kicker{display:block;font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:.08em;text-transform:uppercase;color:var(--color-primary);margin-bottom:.75rem}
.section__title{font-size:var(--text-xl);font-weight:700;letter-spacing:-.02em;margin-bottom:.75rem}
.section__sub{font-size:var(--text-base);color:var(--color-text-muted)}

/* problem cards */
.problem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
.pcard{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1.75rem;box-shadow:var(--shadow-sm)}
.pcard__num{font-family:var(--font-mono);font-size:var(--text-sm);color:var(--color-primary);margin-bottom:1rem}
.pcard h3{font-size:var(--text-lg);margin-bottom:.6rem}
.pcard p{font-size:var(--text-sm);color:var(--color-text-muted)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}
.step{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1.5rem}
.step__icon{width:2.5rem;height:2.5rem;border-radius:var(--radius-md);background:var(--color-primary-soft);color:var(--color-primary);display:grid;place-items:center;margin-bottom:1rem}
.step__icon svg{width:1.35rem;height:1.35rem}
.step h3{font-size:var(--text-base);font-weight:600;margin-bottom:.45rem}
.step p{font-size:var(--text-sm);color:var(--color-text-muted)}

/* terminal */
.terminal{background:var(--color-code-bg);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--color-border);max-width:44rem}
.terminal__bar{display:flex;align-items:center;gap:.5rem;padding:.75rem 1rem;background:rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.07)}
.dot{width:.7rem;height:.7rem;border-radius:50%}
.dot--r{background:#ff5f56}.dot--y{background:#ffbd2e}.dot--g{background:#27c93f}
.terminal__title{margin-left:.6rem;font-family:var(--font-mono);font-size:var(--text-xs);color:#8b97b0}
.terminal__body{padding:1.5rem;overflow-x:auto;font-family:var(--font-mono);font-size:.82rem;line-height:1.7;color:var(--color-code-text)}
.terminal__body code{font-family:inherit}
.c-h{color:#7aa3ff;font-weight:700}
.c-k{color:#5b8dff;font-weight:700}
.c-b{color:#27c93f}
.c-f{color:#ffbd2e}
.demo__caption{margin-top:1.5rem;font-size:var(--text-sm);color:var(--color-text-muted);max-width:44rem}

/* compare */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.compare__col{border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1.75rem;background:var(--color-surface)}
.compare__col--us{border-color:var(--color-primary);box-shadow:var(--shadow-md);position:relative}
.compare__label{font-family:var(--font-mono);font-size:var(--text-sm);font-weight:700;margin-bottom:1.25rem}
.compare__col--us .compare__label{color:var(--color-primary)}
.compare__list{display:flex;flex-direction:column;gap:.85rem}
.compare__list li{font-size:var(--text-sm);padding-left:1.6rem;position:relative}
.compare__list li::before{content:"✓";position:absolute;left:0;color:var(--color-primary);font-weight:700}
.compare__list--muted li{color:var(--color-text-muted)}
.compare__list--muted li::before{content:"×";color:var(--color-text-faint)}

/* pricing */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;align-items:start}
.tier{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1.75rem;position:relative}
.tier--feature{border-color:var(--color-primary);box-shadow:var(--shadow-md)}
.tier__flag{position:absolute;top:-.7rem;right:1.25rem;font-family:var(--font-mono);font-size:.68rem;text-transform:uppercase;letter-spacing:.05em;background:var(--color-primary);color:#fff;padding:.25rem .6rem;border-radius:var(--radius-full)}
.tier__name{font-size:var(--text-lg);font-weight:600;margin-bottom:.5rem}
.tier__price{font-family:var(--font-mono);font-size:var(--text-xl);font-weight:700;margin-bottom:.35rem}
.tier__price span{font-size:var(--text-sm);color:var(--color-text-faint);font-weight:500}
.tier__desc{font-size:var(--text-sm);color:var(--color-text-muted);margin-bottom:1.25rem;min-height:2.6em}
.tier__feats{display:flex;flex-direction:column;gap:.65rem;margin-bottom:1.5rem}
.tier__feats li{font-size:var(--text-sm);padding-left:1.5rem;position:relative}
.tier__feats li::before{content:"→";position:absolute;left:0;color:var(--color-primary)}

/* cta */
.cta{padding-block:clamp(4rem,8vw,7rem);background:var(--color-surface-offset);border-top:1px solid var(--color-divider)}
.cta__inner{text-align:center;max-width:40rem}
.cta__title{font-size:var(--text-xl);font-weight:700;letter-spacing:-.02em;margin-bottom:.75rem}
.cta__lead{color:var(--color-text-muted);margin-bottom:2rem;margin-inline:auto}
.cta__actions{display:flex;gap:.85rem;justify-content:center;flex-wrap:wrap}
.cta__actions .btn{padding:.85rem 1.6rem}


/* footer */
.footer{padding-block:2.5rem;border-top:1px solid var(--color-divider)}
.footer__inner{display:flex;flex-direction:column;align-items:center;gap:.5rem;text-align:center}
.footer__brand{display:flex;align-items:center;gap:.5rem;color:var(--color-primary);font-family:var(--font-mono);font-weight:700}
.footer__brand span{color:var(--color-text)}
.footer__tag{font-family:var(--font-mono);font-size:var(--text-sm);color:var(--color-text-muted)}
.footer__copy{font-size:var(--text-xs);color:var(--color-text-faint)}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media (max-width:900px){
  .problem-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .nav{display:none}
  .hero__inner{grid-template-columns:1fr;gap:2.5rem}
  .hero__copy{max-width:none}
  .hero__preview{max-width:32rem}
}
@media (max-width:640px){
  .problem-grid,.steps,.compare,.tiers{grid-template-columns:1fr}
  .hero__cta .btn{flex:1}
}