/* Nibbus — landing · design system (Soft Structuralism + glass accents) */
@import url('https://api.fontshare.com/v2/css?f[]=clash-display@500,600,700&f[]=satoshi@400,500,700&display=swap');

:root {
  --ink: #0B0B14;
  --ink-2: #1A1A26;
  --muted: #5C5C70;
  --muted-2: #8A8A9C;
  --bg: #FAFAFB;
  --surface: #FFFFFF;
  --surface-2: #F4F4F7;
  --primary: #4F46E5;
  --primary-600: #4338CA;
  --primary-050: #EEF0FF;
  --violet: #7C3AED;
  --spark: #FF7A45;
  --ok: #10B981;
  --line: rgba(11, 11, 20, 0.08);
  --line-2: rgba(11, 11, 20, 0.06);
  --hair: rgba(255, 255, 255, 0.65);

  --r-sm: 14px;
  --r: 22px;
  --r-lg: 28px;
  --r-xl: 34px;
  --r-2xl: 44px;

  --ease: cubic-bezier(0.32, 0.72, 0, 1);
  --ease-2: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-3: cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-soft: 0 1px 2px rgba(11, 11, 20, 0.04), 0 12px 32px -12px rgba(11, 11, 20, 0.12);
  --shadow-lift: 0 2px 4px rgba(11, 11, 20, 0.04), 0 30px 60px -22px rgba(11, 11, 20, 0.20);
  --shadow-inset: inset 0 1px 1px rgba(255, 255, 255, 0.7);

  --maxw: 1200px;
  --gut: clamp(20px, 5vw, 40px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: 'Satoshi', system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* ambient orbs (fixed, GPU-cheap) */
.orbs { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.55; }
.orb-a { width: 640px; height: 640px; top: -220px; left: -160px;
  background: radial-gradient(circle at 30% 30%, rgba(79, 70, 229, 0.28), transparent 70%); }
.orb-b { width: 560px; height: 560px; top: 120px; right: -200px;
  background: radial-gradient(circle at 60% 40%, rgba(124, 58, 237, 0.20), transparent 70%); }
.orb-c { width: 520px; height: 520px; top: 720px; left: 40%;
  background: radial-gradient(circle at 50% 50%, rgba(255, 122, 69, 0.14), transparent 70%); }

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul { list-style: none; }

/* layout */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gut); position: relative; z-index: 1; }
section { position: relative; z-index: 1; padding: clamp(80px, 11vw, 150px) 0; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line);
  font-size: 11px; font-weight: 500; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--muted); box-shadow: var(--shadow-soft);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 0 4px rgba(79,70,229,0.14); }

h1, h2, h3 { font-family: 'Clash Display', system-ui, sans-serif; font-weight: 600; letter-spacing: -0.02em; line-height: 1.04; color: var(--ink); }
h1 { font-size: clamp(42px, 6.6vw, 84px); letter-spacing: -0.035em; }
h2 { font-size: clamp(30px, 4.4vw, 54px); letter-spacing: -0.03em; }
h3 { font-size: clamp(20px, 2vw, 24px); }
p { color: var(--muted); }
.lead { font-size: clamp(18px, 2vw, 21px); color: var(--muted); max-width: 56ch; }
.gradient { background: linear-gradient(100deg, var(--primary), var(--violet) 60%, var(--spark)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.section-head { max-width: 720px; margin-bottom: clamp(40px, 5vw, 64px); }
.section-head .eyebrow { margin-bottom: 18px; }
.section-head p { margin-top: 16px; font-size: clamp(17px, 1.6vw, 19px); }

/* ---------- buttons ---------- */
.btn { --bg-b: var(--ink); display: inline-flex; align-items: center; gap: 12px;
  padding: 14px 22px 14px 26px; border-radius: 999px; font-weight: 500; font-size: 16px;
  background: var(--bg-b); color: #fff; border: 1px solid transparent; cursor: pointer;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease), background .35s var(--ease);
  box-shadow: 0 10px 24px -10px rgba(11, 11, 20, 0.45); }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: scale(0.98); }
.btn .ico { width: 30px; height: 30px; border-radius: 50%; background: rgba(255,255,255,0.16);
  display: grid; place-items: center; transition: transform .5s var(--ease); }
.btn:hover .ico { transform: translate(3px, -1px) scale(1.06); }
.btn--primary { background: linear-gradient(120deg, var(--primary), var(--violet)); }
.btn--ghost { background: var(--surface); color: var(--ink); border: 1px solid var(--line); box-shadow: var(--shadow-soft); }
.btn--ghost .ico { background: var(--surface-2); color: var(--ink); }
.btn--lg { padding: 17px 24px 17px 30px; font-size: 17px; }
.link { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; color: var(--ink);
  border-bottom: 1px solid var(--line); padding-bottom: 2px; transition: border-color .3s var(--ease), color .3s; }
.link:hover { border-color: var(--primary); color: var(--primary); }

/* ---------- nav ---------- */
.nav { position: fixed; top: 18px; left: 0; right: 0; z-index: 60; display: flex; justify-content: center;
  padding: 0 var(--gut); pointer-events: none; }
.nav-pill { pointer-events: auto; display: flex; align-items: center; gap: 6px; padding: 8px;
  border-radius: 999px; background: rgba(255, 255, 255, 0.72); border: 1px solid var(--line);
  backdrop-filter: blur(20px) saturate(160%); -webkit-backdrop-filter: blur(20px) saturate(160%);
  box-shadow: var(--shadow-soft); max-width: 100%; }
.brand { display: flex; align-items: center; gap: 10px; padding: 0 10px 0 8px; font-family: 'Clash Display'; font-weight: 600; font-size: 19px; letter-spacing: -0.02em; }
.brand svg { width: 30px; height: 30px; }
.nav-links { display: flex; align-items: center; gap: 2px; margin: 0 6px; }
.nav-links a { padding: 9px 14px; border-radius: 999px; font-size: 15px; color: var(--muted); font-weight: 500; transition: color .3s, background .3s; }
.nav-links a:hover { color: var(--ink); background: var(--surface-2); }
.nav-cta { display: flex; align-items: center; gap: 8px; }
.nav-cta .btn { padding: 11px 18px 11px 22px; font-size: 15px; }
.nav-cta .btn .ico { width: 24px; height: 24px; }
.signin { padding: 9px 14px; font-size: 15px; color: var(--muted); font-weight: 500; border-radius: 999px; transition: color .3s; }
.signin:hover { color: var(--ink); }
.burger { display: none; width: 42px; height: 42px; border: none; background: var(--surface-2); border-radius: 999px; cursor: pointer; position: relative; }
.burger span { position: absolute; left: 12px; right: 12px; height: 1.6px; background: var(--ink); border-radius: 2px; transition: transform .4s var(--ease), opacity .3s; }
.burger span:nth-child(1) { top: 16px; } .burger span:nth-child(2) { top: 20.5px; } .burger span:nth-child(3) { top: 25px; }
.burger.open span:nth-child(1) { transform: translateY(4.5px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-4.5px) rotate(-45deg); }

/* mobile menu overlay */
.menu { position: fixed; inset: 0; z-index: 55; background: rgba(250, 250, 251, 0.86);
  backdrop-filter: blur(28px) saturate(160%); -webkit-backdrop-filter: blur(28px) saturate(160%);
  display: grid; place-items: center; opacity: 0; pointer-events: none; transition: opacity .5s var(--ease); }
.menu.open { opacity: 1; pointer-events: auto; }
.menu ul { display: grid; gap: 8px; text-align: center; }
.menu a { font-family: 'Clash Display'; font-size: clamp(28px, 7vw, 44px); font-weight: 600; color: var(--ink); }
.menu li { opacity: 0; transform: translateY(24px); transition: opacity .5s var(--ease), transform .5s var(--ease); }
.menu.open li { opacity: 1; transform: none; }
.menu.open li:nth-child(1) { transition-delay: .08s; } .menu.open li:nth-child(2) { transition-delay: .14s; }
.menu.open li:nth-child(3) { transition-delay: .2s; } .menu.open li:nth-child(4) { transition-delay: .26s; }
.menu.open li:nth-child(5) { transition-delay: .32s; }

/* ---------- double-bezel card ---------- */
.bezel { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--r-2xl);
  padding: 10px; box-shadow: var(--shadow-soft); }
.bezel > .core { background: var(--surface); border-radius: calc(var(--r-2xl) - 10px);
  box-shadow: var(--shadow-inset); overflow: hidden; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  box-shadow: var(--shadow-soft); transition: transform .5s var(--ease), box-shadow .5s var(--ease), border-color .4s; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); border-color: rgba(79,70,229,0.22); }

/* ---------- hero ---------- */
.hero { padding-top: clamp(150px, 18vw, 210px); }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(40px, 6vw, 80px); align-items: center; }
.hero h1 { margin: 22px 0 22px; }
.hero .lead { margin-bottom: 34px; }
.dual { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; max-width: 560px; }
.dual .path { padding: 18px 18px 16px; border-radius: var(--r); background: var(--surface); border: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 8px; transition: transform .5s var(--ease), box-shadow .5s var(--ease), border-color .4s; cursor: pointer; }
.dual .path:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); border-color: rgba(79,70,229,0.28); }
.dual .path .tag { font-size: 12px; font-weight: 500; color: var(--primary); letter-spacing: 0.04em; text-transform: uppercase; }
.dual .path .t { font-family: 'Clash Display'; font-weight: 600; font-size: 18px; color: var(--ink); }
.dual .path .a { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 500; color: var(--ink); margin-top: 2px; }

.trust { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 36px; align-items: center; }
.trust .t { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); font-weight: 500; }
.trust svg { width: 16px; height: 16px; color: var(--primary); }

/* invoice mockup */
.mock { padding: 16px; }
.mock .core { padding: 24px; }
.mock-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.mock h4 { font-family: 'Clash Display'; font-size: 15px; color: var(--muted-2); font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; }
.mock .big { font-family: 'Clash Display'; font-size: 30px; font-weight: 600; margin-top: 2px; }
.badge-ok { display: inline-flex; align-items: center; gap: 7px; padding: 7px 12px 7px 10px; border-radius: 999px;
  background: #ECFDF5; color: #047857; font-size: 13px; font-weight: 500; border: 1px solid rgba(16,185,129,0.25); }
.badge-ok .d { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); }
.mock-rows { margin-top: 22px; display: grid; gap: 10px; }
.mrow { display: flex; justify-content: space-between; align-items: center; padding: 12px 14px; border-radius: 14px; background: var(--surface-2); border: 1px solid var(--line-2); }
.mrow .l { font-size: 14px; color: var(--ink-2); font-weight: 500; }
.mrow .v { font-family: 'Clash Display'; font-size: 15px; font-weight: 600; }
.mrow .v.muted { color: var(--muted); font-family: 'Satoshi'; font-weight: 500; }
.mock-tot { margin-top: 14px; display: flex; justify-content: space-between; align-items: baseline; padding: 16px 4px 4px; border-top: 1px dashed var(--line); }
.mock-tot .l { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.mock-tot .v { font-family: 'Clash Display'; font-size: 28px; font-weight: 700; }

/* ---------- marquee trust ---------- */
.strip { padding: 26px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,0.5); }
.strip .wrap { display: flex; flex-wrap: wrap; gap: 16px 40px; align-items: center; justify-content: space-between; }
.strip .t { display: flex; align-items: center; gap: 10px; font-weight: 500; color: var(--ink-2); font-size: 16px; }
.strip .t svg { width: 20px; height: 20px; color: var(--primary); }
.strip .muted { color: var(--muted-2); font-size: 14px; }

/* ---------- bento ---------- */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.bento .b { padding: 12px; }
.bento .b > .core { padding: 28px; height: 100%; display: flex; flex-direction: column; }
.b .b-ico { width: 46px; height: 46px; border-radius: 14px; background: var(--primary-050); color: var(--primary);
  display: grid; place-items: center; margin-bottom: 22px; }
.b .b-ico svg { width: 22px; height: 22px; }
.b h3 { margin-bottom: 10px; }
.b p { font-size: 15.5px; }
.b-1 { grid-column: span 4; grid-row: span 2; }
.b-2 { grid-column: span 2; }
.b-3 { grid-column: span 2; }
.b-4 { grid-column: span 3; }
.b-5 { grid-column: span 3; }
.b-big-art { margin-top: 26px; flex: 1; min-height: 200px; border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--primary-050, #EEF0FF), #fff);
  border: 1px solid var(--line); position: relative; overflow: hidden; display: grid; place-items: center; }
.docs-flow { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; padding: 18px; }
.docp { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 10px 14px; box-shadow: var(--shadow-soft);
  font-size: 13px; font-weight: 500; display: inline-flex; gap: 8px; align-items: center; }
.docp .d { width: 7px; height: 7px; border-radius: 50%; background: var(--primary); }
.docp.ok .d { background: var(--ok); }

/* ---------- steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step .num { font-family: 'Clash Display'; font-size: 18px; font-weight: 600; color: var(--primary);
  width: 44px; height: 44px; border-radius: 50%; background: var(--surface); border: 1px solid var(--line);
  display: grid; place-items: center; box-shadow: var(--shadow-soft); margin-bottom: 22px; }
.step h3 { margin-bottom: 10px; }
.step p { font-size: 15.5px; }
.step .core { padding: 30px; height: 100%; }

/* ---------- dual paths section ---------- */
.dpaths { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.dpath { padding: 14px; transform: rotate(-0.4deg); transition: transform .5s var(--ease); }
.dpath:nth-child(2) { transform: rotate(0.5deg); }
.dpath:hover { transform: rotate(0) translateY(-4px); }
.dpath .core { padding: 34px; }
.dpath .pill { display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border-radius: 999px;
  font-size: 12px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 22px; }
.dpath.eco .pill { background: var(--primary-050); color: var(--primary); }
.dpath.std .pill { background: #FFF1EA; color: var(--spark); }
.dpath h3 { font-size: clamp(24px, 2.6vw, 30px); margin-bottom: 12px; }
.dpath ul { display: grid; gap: 12px; margin: 22px 0 28px; }
.dpath li { display: flex; gap: 12px; align-items: flex-start; font-size: 15.5px; color: var(--ink-2); }
.dpath li svg { width: 20px; height: 20px; color: var(--primary); flex-shrink: 0; margin-top: 2px; }
.dpath.std li svg { color: var(--spark); }

/* ---------- pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; align-items: start; }
.price { padding: 12px; }
.price .core { padding: 28px; height: 100%; display: flex; flex-direction: column; }
.price.feat { background: var(--ink); border-color: transparent; }
.price.feat .core { background: var(--ink); color: #fff; box-shadow: none; }
.price .pn { font-family: 'Clash Display'; font-size: 19px; font-weight: 600; }
.price .pp { font-family: 'Clash Display'; font-size: 42px; font-weight: 700; margin: 14px 0 2px; letter-spacing: -0.02em; }
.price .pp small { font-size: 15px; font-weight: 500; opacity: 0.7; font-family: 'Satoshi'; }
.price .pd { font-size: 14px; color: var(--muted); margin-bottom: 22px; }
.price.feat .pd { color: rgba(255,255,255,0.6); }
.price ul { display: grid; gap: 11px; margin-bottom: 26px; }
.price li { display: flex; gap: 10px; font-size: 14.5px; color: var(--ink-2); }
.price.feat li { color: rgba(255,255,255,0.86); }
.price li svg { width: 17px; height: 17px; color: var(--primary); flex-shrink: 0; margin-top: 2px; }
.price.feat li svg { color: #8EF0C6; }
.price .btn { width: 100%; justify-content: center; }
.price-note { margin-top: 26px; text-align: center; color: var(--muted-2); font-size: 14.5px; }

/* ---------- faq ---------- */
.faq { max-width: 820px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 26px 0; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary h3 { font-size: clamp(18px, 2vw, 22px); }
.faq summary .plus { width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--line); flex-shrink: 0;
  display: grid; place-items: center; position: relative; transition: transform .4s var(--ease), background .3s; }
.faq summary .plus::before, .faq summary .plus::after { content: ''; position: absolute; background: var(--ink); border-radius: 2px; transition: transform .4s var(--ease); }
.faq summary .plus::before { width: 12px; height: 1.6px; }
.faq summary .plus::after { width: 1.6px; height: 12px; }
.faq details[open] summary .plus { background: var(--ink); }
.faq details[open] summary .plus::before, .faq details[open] summary .plus::after { background: #fff; }
.faq details[open] summary .plus::after { transform: scaleY(0); }
.faq .ans { padding: 0 50px 30px 0; color: var(--muted); font-size: 16px; }

/* ---------- cta band ---------- */
.cta-band { padding: 16px; }
.cta-band .core { padding: clamp(50px, 7vw, 90px) clamp(30px, 5vw, 70px);
  background: radial-gradient(120% 140% at 0% 0%, #1c1747 0%, var(--ink) 55%);
  border-radius: calc(var(--r-2xl) - 10px); color: #fff; position: relative; overflow: hidden;
  display: grid; grid-template-columns: 1.4fr 0.6fr; gap: 40px; align-items: center; }
.cta-band .glow { position: absolute; top: -120px; right: -80px; width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(124,58,237,0.55), transparent 70%); filter: blur(40px); pointer-events: none; }
.cta-band h2 { color: #fff; max-width: 16ch; }
.cta-band p { color: rgba(255,255,255,0.7); margin-top: 16px; max-width: 46ch; }
.cta-band .btn { background: #fff; color: var(--ink); box-shadow: 0 14px 30px -10px rgba(0,0,0,0.5); }
.cta-band .btn .ico { background: var(--surface-2); color: var(--ink); }
.cta-band .cta-r { position: relative; z-index: 1; display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }

/* ---------- footer ---------- */
footer { padding: 80px 0 40px; border-top: 1px solid var(--line); position: relative; z-index: 1; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.foot-brand p { margin: 16px 0 0; font-size: 14.5px; max-width: 34ch; }
.foot-col h5 { font-size: 12px; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 16px; }
.foot-col a { display: block; padding: 6px 0; font-size: 15px; color: var(--ink-2); transition: color .3s; }
.foot-col a:hover { color: var(--primary); }
.foot-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  padding-top: 28px; border-top: 1px solid var(--line); font-size: 13.5px; color: var(--muted-2); }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(34px); filter: blur(8px);
  transition: opacity .9s var(--ease-3), transform .9s var(--ease-3), filter .9s var(--ease-3); }
.reveal.in { opacity: 1; transform: none; filter: none; }
.reveal.d1 { transition-delay: .08s; } .reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; } .reveal.d4 { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; filter: none; transition: none; } }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .b-1 { grid-column: span 6; grid-row: auto; }
  .b-2, .b-3, .b-4, .b-5 { grid-column: span 6; }
  .price-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-band .core { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  body { font-size: 16px; }
  .hide { display: none; }
  .nav-links, .nav-cta .signin, .nav-cta .btn span:not(.ico) { display: none; }
  .nav-cta .btn { padding: 11px; } .nav-cta .btn .ico { margin: 0; }
  .burger { display: block; }
  .dual { grid-template-columns: 1fr; }
  .bento { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .dpaths { grid-template-columns: 1fr; }
  .dpath { transform: none !important; }
  .price-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .cta-band .cta-r { align-items: stretch; }
  .mock .core { padding: 18px; }
}