/* ============================================================
   PLUMBIX — Design System
   Black & white premium SaaS aesthetic, restrained indigo accent.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  /* Palette */
  --black: #0A0A0B;
  --black-soft: #1A1A1D;
  --charcoal: #232327;
  --white: #FFFFFF;
  --gray-50: #FAFAFA;
  --gray-100: #F1F1F3;
  --gray-200: #E4E4E8;
  --gray-300: #D4D4D9;
  --gray-500: #8A8A93;
  --gray-600: #5F5F68;
  --gray-700: #3F3F46;
  --accent: #3D5AFE;
  --accent-dim: #2A3FBF;
  --accent-tint: #EEF0FF;
  --success: #16A34A;

  /* Type */
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  /* Layout */
  --max-w: 1180px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --border: 1px solid var(--gray-200);
  --border-dark: 1px solid rgba(255,255,255,0.1);

  --shadow-sm: 0 1px 2px rgba(10,10,11,0.06);
  --shadow-md: 0 8px 24px rgba(10,10,11,0.08);
  --shadow-lg: 0 24px 60px rgba(10,10,11,0.14);
}

*{ box-sizing: border-box; margin:0; padding:0; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body{
  font-family: var(--font-body);
  color: var(--black);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
ul{ list-style: none; }
button{ font-family: inherit; cursor: pointer; }
input, select, textarea{ font-family: inherit; font-size: 1rem; }

.container{
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

section{ position: relative; }

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.12;
}
h1{ font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 700; letter-spacing: -0.03em; }
h2{ font-size: clamp(1.9rem, 3.4vw, 2.7rem); }
h3{ font-size: 1.3rem; }
p{ color: var(--gray-700); }

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-tint);
  border: 1px solid rgba(61,90,254,0.18);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.eyebrow .dot{
  width:6px; height:6px; border-radius:50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(61,90,254,0.18);
}
.eyebrow.on-dark{ background: rgba(61,90,254,0.14); border-color: rgba(61,90,254,0.3); color:#8DA0FF; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding: 13px 24px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
  white-space: nowrap;
}
.btn-primary{
  background: var(--black);
  color: var(--white);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: var(--shadow-lg); background: var(--accent); }
.btn-accent{
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 10px 30px rgba(61,90,254,0.35);
}
.btn-accent:hover{ transform: translateY(-2px); box-shadow: 0 16px 40px rgba(61,90,254,0.45); }
.btn-ghost{
  background: transparent;
  border-color: var(--gray-300);
  color: var(--black);
}
.btn-ghost:hover{ border-color: var(--black); background: var(--gray-50); }
.btn-ghost.on-dark{ border-color: rgba(255,255,255,0.25); color: var(--white); }
.btn-ghost.on-dark:hover{ background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.5); }
.btn-block{ width:100%; }
.btn-lg{ padding: 15px 28px; font-size: 1rem; }
.btn-sm{ padding: 9px 16px; font-size: 0.85rem; }

.cta-row{ display:flex; gap:14px; flex-wrap:wrap; align-items:center; }

/* ---------- Nav ---------- */
.nav{
  position: sticky; top:0; z-index: 100;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(10,10,11,0.06);
  transition: box-shadow .2s ease;
}
.nav.scrolled{ box-shadow: 0 4px 20px rgba(10,10,11,0.06); }
.nav-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: 16px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.logo{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.28rem;
  letter-spacing: -0.02em;
  display:flex; align-items:center; gap:9px;
}
.logo-mark{
  width: 26px; height: 26px; border-radius: 7px;
  background: linear-gradient(135deg, var(--black), var(--accent));
  position: relative; flex-shrink:0;
}
.logo-mark::after{
  content:''; position:absolute; inset: 6px;
  border: 1.6px solid var(--white);
  border-radius: 3px;
  opacity: .9;
}
.nav-links{ display:flex; gap:34px; align-items:center; }
.nav-links a{
  font-size: 0.92rem; font-weight: 500; color: var(--gray-700);
  transition: color .15s ease;
  position: relative;
}
.nav-links a:hover{ color: var(--black); }
.nav-actions{ display:flex; gap:12px; align-items:center; }
.nav-toggle{ display:none; background:none; border:none; }
.nav-toggle span{ display:block; width:22px; height:2px; background:var(--black); margin:5px 0; transition: all .2s; }

@media (max-width: 880px){
  .nav-links{
    position:fixed; top: 64px; left:0; right:0; height: calc(100vh - 64px); height: calc(100dvh - 64px);
    background: var(--white);
    flex-direction: column; align-items:flex-start; gap:0;
    padding: 12px 24px 24px; transform: translateX(100%);
    transition: transform .25s ease; overflow-y:auto;
  }
  .nav-links.open{ transform: translateX(0); }
  .nav-links a{ width:100%; padding: 15px 0; border-bottom: 1px solid var(--gray-100); font-size:1rem; }
  .nav-actions .btn-ghost{ display:none; }
  .nav-toggle{ display:block; }
}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(1100px 500px at 82% -10%, rgba(61,90,254,0.35), transparent 60%),
    radial-gradient(800px 400px at 10% 110%, rgba(61,90,254,0.15), transparent 60%),
    linear-gradient(180deg, var(--black) 0%, var(--black-soft) 55%, var(--charcoal) 100%);
  color: var(--white);
  padding: 96px 0 110px;
  overflow: hidden;
}
.hero-grid{
  display:grid; grid-template-columns: 1.05fr 0.95fr; gap:56px; align-items:center;
}
.hero h1{ color: var(--white); margin-bottom: 20px; }
.hero h1 .accent-word{
  background: linear-gradient(100deg, #8DA0FF, #ffffff 70%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero-sub{ color: rgba(255,255,255,0.68); font-size: 1.12rem; max-width: 520px; margin-bottom: 34px; }
.hero-note{
  margin-top: 26px; display:flex; gap:22px; flex-wrap:wrap;
  font-family: var(--font-mono); font-size: 0.78rem; color: rgba(255,255,255,0.5);
}
.hero-note span{ display:flex; align-items:center; gap:7px; }
.hero-note b{ color: rgba(255,255,255,0.85); font-weight:500; }

/* Signature element: account provisioning status panel */
.status-panel{
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 26px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  animation: floatY 7s ease-in-out infinite;
}
@keyframes floatY{ 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(-10px);} }
.status-panel-head{
  display:flex; justify-content:space-between; align-items:center;
  padding-bottom:16px; margin-bottom:18px; border-bottom: 1px solid rgba(255,255,255,0.1);
}
.status-panel-head .req-id{ font-family: var(--font-mono); font-size:0.78rem; color: rgba(255,255,255,0.55); }
.status-panel-head .platform-tag{
  font-family: var(--font-mono); font-size: 0.72rem; padding: 4px 10px; border-radius:999px;
  background: rgba(61,90,254,0.18); color:#AAB8FF; border:1px solid rgba(61,90,254,0.3);
}
.status-steps{ display:flex; flex-direction:column; gap:0; }
.status-step{
  display:flex; align-items:center; gap:14px; padding: 13px 0; position:relative;
}
.status-step:not(:last-child)::after{
  content:''; position:absolute; left:11px; top:38px; width:1px; height:26px;
  background: rgba(255,255,255,0.14);
}
.status-dot{
  width:24px; height:24px; border-radius:50%; flex-shrink:0;
  border: 1.6px solid rgba(255,255,255,0.25);
  display:flex; align-items:center; justify-content:center;
  font-size:0.65rem; color: rgba(255,255,255,0.4);
  transition: all .4s ease;
}
.status-step.is-done .status-dot{ background: var(--accent); border-color: var(--accent); color:#fff; }
.status-step.is-active .status-dot{ border-color: var(--accent); color: var(--accent); animation: pulseDot 1.4s ease-in-out infinite; }
@keyframes pulseDot{ 0%,100%{ box-shadow: 0 0 0 0 rgba(61,90,254,0.5);} 50%{ box-shadow: 0 0 0 6px rgba(61,90,254,0);} }
.status-label{ font-size: 0.92rem; color: rgba(255,255,255,0.85); }
.status-time{ margin-left:auto; font-family: var(--font-mono); font-size: 0.72rem; color: rgba(255,255,255,0.4); }
.status-step.is-done .status-label{ color: rgba(255,255,255,0.55); }
.status-step.is-pending .status-label{ color: rgba(255,255,255,0.35); }

@media (max-width: 940px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero{ padding: 56px 0 60px; text-align:left; }
}

/* ---------- Section basics ---------- */
.section{ padding: 96px 0; }
.section-tight{ padding: 64px 0; }
.section-alt{ background: var(--gray-50); }
.section-dark{ background: var(--black); color: var(--white); }
.section-dark p{ color: rgba(255,255,255,0.65); }
.section-dark h2{ color: var(--white); }
.section-head{ max-width: 640px; margin-bottom: 52px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head p{ font-size: 1.05rem; margin-top: 14px; }

/* ---------- Cards / grids ---------- */
.grid{ display:grid; gap: 22px; }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-4{ grid-template-columns: repeat(4, 1fr); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
@media (max-width: 940px){ .grid-3,.grid-4{ grid-template-columns: repeat(2,1fr);} }
@media (max-width: 620px){ .grid-2,.grid-3,.grid-4{ grid-template-columns: 1fr;} }

.card{
  background: var(--white);
  border: var(--border);
  border-radius: var(--radius-md);
  padding: 30px;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--gray-300); }
.card-icon{
  width: 44px; height:44px; border-radius: 11px;
  background: var(--black); color:var(--white);
  display:flex; align-items:center; justify-content:center;
  margin-bottom: 18px; font-size:1.1rem;
}
.card h3{ margin-bottom: 9px; }
.card p{ font-size: 0.95rem; }

.reveal{ opacity:0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform: translateY(0); }

/* ---------- Platform cards ---------- */
.platform-card{
  background: var(--white); border: var(--border); border-radius: var(--radius-md);
  padding: 22px 20px; text-align:left; transition: all .2s ease;
  display:flex; flex-direction:column; gap:10px;
}
.platform-card:hover{ border-color: var(--black); transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.platform-glyph{
  width:38px; height:38px; border-radius:9px; background: var(--gray-100);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--font-mono); font-weight:600; font-size:0.85rem; color: var(--black);
}
.platform-card b{ font-size: 0.98rem; font-weight:600; }
.platform-card span{ font-size: 0.82rem; color: var(--gray-600); }

/* ---------- Steps (How it works) ---------- */
.steps{ display:grid; grid-template-columns: repeat(4,1fr); gap:0; position:relative; }
@media (max-width: 900px){ .steps{ grid-template-columns: 1fr; gap:34px; } }
.step{ position:relative; padding: 0 22px 0 0; }
.step:first-child{ padding-left:0; }
.step-num{
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--accent);
  border: 1px solid rgba(61,90,254,0.3); background: var(--accent-tint);
  width: 30px; height:30px; border-radius:50%;
  display:flex; align-items:center; justify-content:center; margin-bottom:18px;
}
.step-line{
  position:absolute; top:15px; left: calc(100% - 6px); width: 44px; height:1px;
  background: repeating-linear-gradient(90deg, var(--gray-300) 0 6px, transparent 6px 11px);
}
@media (max-width:900px){ .step-line{ display:none; } }
.step h3{ margin-bottom: 8px; font-size: 1.1rem; }
.step p{ font-size: 0.92rem; }

/* ---------- Testimonials ---------- */
.testi-card{
  background: var(--gray-50); border: var(--border); border-radius: var(--radius-md);
  padding: 28px; display:flex; flex-direction:column; gap:16px;
}
.testi-quote{ font-size: 1.02rem; color: var(--black); font-weight:500; line-height:1.55; }
.testi-who{ display:flex; align-items:center; gap:12px; }
.testi-avatar{
  width:38px; height:38px; border-radius:50%;
  background: linear-gradient(135deg, var(--black), var(--accent));
  flex-shrink:0;
}
.testi-role{ font-size:0.85rem; color: var(--gray-600); }
.testi-role b{ display:block; color:var(--black); font-size:0.92rem; }
.testi-disclaimer{
  margin-top: 30px; font-size: 0.82rem; color: var(--gray-500);
  border-top: var(--border); padding-top: 20px;
}

/* ---------- FAQ ---------- */
.faq-item{
  border-bottom: var(--border);
}
.faq-q{
  width:100%; background:none; border:none; text-align:left;
  display:flex; justify-content:space-between; align-items:center; gap:16px;
  padding: 22px 4px; font-size: 1.02rem; font-weight:600; color: var(--black);
}
.faq-q .plus{
  width:22px; height:22px; border-radius:50%; border: 1px solid var(--gray-300);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
  position:relative; transition: transform .25s ease, background .2s ease;
}
.faq-q .plus::before, .faq-q .plus::after{
  content:''; position:absolute; background: var(--black);
}
.faq-q .plus::before{ width:9px; height:1.4px; }
.faq-q .plus::after{ width:1.4px; height:9px; }
.faq-item.open .faq-q .plus{ transform: rotate(135deg); background: var(--black); }
.faq-item.open .faq-q .plus::before, .faq-item.open .faq-q .plus::after{ background: var(--white); }
.faq-a{
  max-height:0; overflow:hidden; transition: max-height .3s ease;
}
.faq-a-inner{ padding: 0 4px 22px; color: var(--gray-700); font-size: 0.96rem; max-width: 680px; }

/* ---------- Forms ---------- */
.form-card{
  background: var(--white); border: var(--border); border-radius: var(--radius-lg);
  padding: 36px; box-shadow: var(--shadow-md);
}
.form-row{ display:grid; grid-template-columns: 1fr 1fr; gap:16px; }
@media (max-width:600px){ .form-row{ grid-template-columns: 1fr; } }
.field{ margin-bottom: 18px; }
.field label{
  display:block; font-size: 0.84rem; font-weight:600; margin-bottom:7px; color: var(--black);
}
.field .req{ color: var(--accent); }
.field input, .field select, .field textarea{
  width:100%; padding: 12px 14px; border-radius: 9px;
  border: 1px solid var(--gray-300); background: var(--gray-50);
  transition: border-color .15s ease, background .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color: var(--accent); background: var(--white);
  box-shadow: 0 0 0 3px rgba(61,90,254,0.15);
}
.field textarea{ resize: vertical; min-height: 100px; }
.form-note{ font-size: 0.8rem; color: var(--gray-500); margin-top: 14px; }
.form-success{
  display:none; text-align:center; padding: 40px 20px;
}
.form-success.show{ display:block; }
.form-success .check{
  width:56px; height:56px; border-radius:50%; background: var(--accent);
  color:#fff; display:flex; align-items:center; justify-content:center;
  font-size:1.4rem; margin: 0 auto 18px;
}

/* ---------- CTA banner ---------- */
.cta-banner{
  background: linear-gradient(120deg, var(--black) 0%, var(--black-soft) 60%, var(--accent-dim) 130%);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  color: var(--white);
  display:flex; align-items:center; justify-content:space-between; gap:30px; flex-wrap:wrap;
}
.cta-banner h2{ color:var(--white); font-size: clamp(1.5rem, 2.6vw, 2.1rem); margin-bottom:8px; }
.cta-banner p{ color: rgba(255,255,255,0.65); }
@media (max-width: 760px){ .cta-banner{ padding: 40px 26px; text-align:center; justify-content:center; } }

/* inline sticky CTA strip on landing page */
.sticky-cta{
  position: sticky; bottom: 0; z-index: 90;
  background: rgba(10,10,11,0.92); backdrop-filter: blur(10px);
  color:#fff; padding: 14px 24px;
  display:flex; align-items:center; justify-content:center; gap:18px; flex-wrap:wrap;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.sticky-cta span{ font-size:0.9rem; color: rgba(255,255,255,0.75); }

/* ---------- Footer ---------- */
.footer{ background: var(--black); color: rgba(255,255,255,0.6); padding: 64px 0 30px; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 40px; margin-bottom: 50px; }
@media (max-width: 760px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
.footer h4{ color:#fff; font-size:0.82rem; letter-spacing:0.06em; text-transform:uppercase; margin-bottom:16px; font-family:var(--font-mono); font-weight:500; }
.footer ul li{ margin-bottom: 11px; }
.footer ul a{ font-size:0.9rem; transition: color .15s; }
.footer ul a:hover{ color:#fff; }
.footer-bottom{
  border-top: 1px solid rgba(255,255,255,0.1); padding-top: 26px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:14px;
  font-size: 0.82rem;
}
.footer-brand p{ color: rgba(255,255,255,0.5); font-size:0.9rem; margin-top:12px; max-width:280px; }
.footer-disclaimer{ font-size: 0.78rem; color: rgba(255,255,255,0.35); margin-top: 20px; max-width: 640px; line-height:1.6; }

/* ---------- Misc ---------- */
.badge-row{ display:flex; gap:10px; flex-wrap:wrap; margin-top:20px; }
.mini-badge{
  font-family: var(--font-mono); font-size:0.74rem; padding:6px 11px; border-radius:999px;
  border:1px solid var(--gray-300); color: var(--gray-600);
}
.divider{ height:1px; background: var(--gray-200); width:100%; }
.breadcrumb{ font-size:0.85rem; color: var(--gray-500); margin-bottom: 18px; }
.breadcrumb a:hover{ color: var(--black); }
.pill-list{ display:flex; gap:10px; flex-wrap:wrap; margin: 22px 0; }
.pill-list li{
  font-size:0.86rem; padding: 9px 14px; border-radius:999px; background: var(--gray-100); color: var(--gray-700);
}
.check-list li{
  display:flex; gap:12px; padding: 10px 0; font-size:0.96rem; color: var(--gray-700);
  border-bottom: 1px dashed var(--gray-200);
}
.check-list li::before{
  content:'✓'; color: var(--accent); font-weight:700; flex-shrink:0;
}
.two-col{ display:grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items:start; }
@media (max-width: 880px){ .two-col{ grid-template-columns:1fr; gap:36px; } }

.legal-content h2{ font-size:1.4rem; margin: 34px 0 12px; }
.legal-content h3{ font-size: 1.1rem; margin: 22px 0 10px; }
.legal-content p, .legal-content li{ color: var(--gray-700); font-size: 0.96rem; margin-bottom: 12px; }
.legal-content ul{ padding-left: 20px; list-style: disc; }
.legal-content ul li{ margin-bottom:8px; }
.legal-updated{ font-family: var(--font-mono); font-size:0.8rem; color: var(--gray-500); margin-bottom: 30px; }

.page-hero{
  padding: 62px 0 50px; background: var(--gray-50); border-bottom: var(--border);
}
.page-hero h1{ font-size: clamp(2rem, 4vw, 2.8rem); }
.page-hero p{ max-width: 620px; font-size:1.05rem; margin-top:14px; }

.skip-link{
  position:absolute; left:-999px; top:0; background:var(--black); color:#fff; padding:10px 16px; z-index:200;
}
.skip-link:focus{ left: 16px; top: 16px; }

:focus-visible{ outline: 2px solid var(--accent); outline-offset: 2px; }