:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #5b667b;
  --line: #dfe7f2;
  --primary: #1d8fff;
  --primary-dark: #0c5ac9;
  --secondary: #22d3ee;
  --success: #16a34a;
  --hero-bg-1: #081b34;
  --hero-bg-2: #0d2e57;
  --shadow: 0 20px 50px rgba(13, 35, 68, 0.14);
  --radius: 20px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f8fbff 0%, #f1f5fb 100%);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(5, 17, 34, 0.88);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.nav {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 22px;
  min-height: 88px;
}
.brand img { height: 54px; width: auto; }
.nav-links {
  display: flex;
  justify-content: center;
  gap: 26px;
}
.nav-links a {
  color: #d7e7ff;
  font-weight: 600;
  font-size: 15px;
}
.nav-links a:hover { color: #fff; }
.nav-actions {
  display: flex;
  gap: 12px;
}
.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  color: #fff;
  font-size: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 14px;
  padding: 14px 22px;
  border: 1px solid transparent;
  font-weight: 700;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-large { padding: 16px 26px; }
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #2eb5ff 100%);
  color: #fff;
  box-shadow: 0 12px 30px rgba(29, 143, 255, .28);
}
.btn-outline {
  color: #fff;
  background: transparent;
  border-color: rgba(255,255,255,.55);
}
.btn-dark {
  color: #fff;
  border-color: rgba(255,255,255,.25);
  background: rgba(255,255,255,.05);
}
.btn-light {
  background: #eef5ff;
  color: #0f3f87;
  border-color: #d5e7ff;
}
.btn-success {
  background: linear-gradient(135deg, #16a34a 0%, #21c35a 100%);
  color: #fff;
}
.full-width { width: 100%; }

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at top right, rgba(39,190,255,.35), transparent 22%),
    radial-gradient(circle at top left, rgba(33,123,255,.18), transparent 30%),
    linear-gradient(135deg, var(--hero-bg-1) 0%, var(--hero-bg-2) 65%, #0b223f 100%);
  color: #fff;
  padding: 48px 0 70px;
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -110px auto;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(29,143,255,.28), transparent 70%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 36px;
  align-items: center;
}
.hero-kicker {
  letter-spacing: .28em;
  font-size: 11px;
  font-weight: 700;
  color: #a9d0ff;
  margin: 0 0 18px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(38px, 4vw, 62px);
  line-height: 1.08;
}
.hero-subtitle {
  color: #d4e7ff;
  font-size: 26px;
  font-weight: 700;
  margin: 20px 0 10px;
}
.hero-text {
  max-width: 660px;
  color: #e8f1ff;
  font-size: 20px;
  line-height: 1.6;
}
.hero-buttons { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 28px; }
.hero-points {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  padding: 0;
  margin: 28px 0 0;
  color: #dbe9ff;
  font-weight: 600;
}
.hero-points li::before { content: "✓"; margin-right: 8px; color: #84e0ff; }

.hero-visual {
  position: relative;
  min-height: 510px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.printer-card {
  width: min(460px, 92%);
  border-radius: 34px;
  padding: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.05));
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 30px 70px rgba(0,0,0,.24);
}
.printer-top {
  height: 28px;
  border-radius: 18px 18px 10px 10px;
  background: linear-gradient(90deg, rgba(255,255,255,.14), rgba(255,255,255,.05));
  margin-bottom: 14px;
}
.printer-body {
  min-height: 330px;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.05)),
    radial-gradient(circle at center, rgba(116,197,255,.12), transparent 50%),
    #102946;
  position: relative;
  overflow: hidden;
}
.printer-body::before {
  content: "";
  position: absolute;
  inset: auto 24px 24px 24px;
  height: 2px;
  background: repeating-linear-gradient(90deg, rgba(130,190,255,.5), rgba(130,190,255,.5) 10px, transparent 10px, transparent 20px);
}
.benchy-shape {
  position: absolute;
  width: 250px;
  height: 220px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -45%);
}
.benchy-shape .hull {
  position: absolute;
  bottom: 14px;
  left: 18px;
  width: 215px;
  height: 94px;
  background: linear-gradient(180deg, #eef4fb, #bec9d4);
  clip-path: polygon(0 55%, 13% 35%, 69% 34%, 86% 45%, 100% 73%, 94% 86%, 23% 88%, 5% 83%);
  border-radius: 24px;
  box-shadow: inset 0 -4px 10px rgba(0,0,0,.08);
}
.benchy-shape .cabin {
  position: absolute;
  left: 85px;
  bottom: 78px;
  width: 95px;
  height: 78px;
  background: linear-gradient(180deg, #f3f7fb, #c6d0da);
  border-radius: 10px 10px 6px 6px;
  box-shadow: inset 0 -4px 10px rgba(0,0,0,.08);
}
.benchy-shape .chimney {
  position: absolute;
  left: 120px;
  bottom: 145px;
  width: 26px;
  height: 34px;
  background: linear-gradient(180deg, #edf3f9, #c7d0db);
  border-radius: 8px 8px 3px 3px;
}
.benchy-shape .window {
  position: absolute;
  left: 103px;
  bottom: 95px;
  width: 34px;
  height: 34px;
  border: 7px solid rgba(62,76,92,.55);
  border-radius: 6px;
  background: rgba(255,255,255,.18);
}
.floating-note {
  position: absolute;
  color: #eaf4ff;
  font-size: 17px;
  font-style: italic;
  line-height: 1.4;
  opacity: .92;
}
.note-top { top: 16px; right: 88px; }
.note-bottom { right: 0; bottom: 12px; text-align: right; }
.hero-side-cards {
  position: absolute;
  right: -2px;
  top: 60px;
  display: grid;
  gap: 12px;
}
.side-card {
  min-width: 190px;
  padding: 18px 18px;
  border-radius: 18px;
  background: rgba(10, 24, 45, .52);
  border: 1px solid rgba(255,255,255,.12);
  color: #f4f9ff;
  font-weight: 700;
  box-shadow: 0 14px 24px rgba(0,0,0,.16);
}

.calculator-section { margin-top: -24px; position: relative; z-index: 5; }
.calculator-shell {
  background: linear-gradient(180deg, #ffffff, #f7faff);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 22px;
}
.calculator-grid {
  display: grid;
  grid-template-columns: 1.06fr 1fr;
  gap: 18px;
}
.calc-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
}
.panel-head h2 {
  margin: 0 0 6px;
  font-size: 30px;
  color: #15345f;
}
.panel-head p { margin: 0 0 22px; color: var(--muted); }
.form-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.form-grid label {
  display: grid;
  gap: 8px;
  color: #405068;
  font-size: 14px;
  font-weight: 700;
}
.form-grid input,
.form-grid select {
  width: 100%;
  height: 48px;
  border-radius: 12px;
  border: 1px solid #d7e2f0;
  background: #fff;
  padding: 0 14px;
  font: inherit;
  color: var(--text);
}
.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 22px;
}
.result-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.result-box {
  border-radius: 16px;
  padding: 16px 18px;
  border: 1px solid var(--line);
}
.result-box span { display: block; font-size: 14px; color: #46607f; margin-bottom: 6px; font-weight: 700; }
.result-box strong { display: block; font-size: 35px; line-height: 1.12; }
.result-box.blue { background: #eef6ff; }
.result-box.blue strong { color: #1471e8; }
.result-box.green { background: #eefbf1; }
.result-box.green strong { color: #119544; }
.result-box.orange { background: #fff6eb; }
.result-box.orange strong { color: #ea7b00; }
.result-box.pink { background: #fff0f2; }
.result-box.pink strong { color: #d42d55; }
.breakdown-grid {
  display: grid;
  grid-template-columns: 1.1fr .8fr;
  gap: 14px;
  margin-top: 14px;
}
.breakdown-panel,
.quote-card,
.tip-card {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 18px;
}
.breakdown-panel h3,
.quote-card h3,
.tip-card h4 {
  margin: 0 0 14px;
  color: #17345e;
}
.breakdown-row,
.summary-row,
.breakdown-total {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid #edf2f8;
}
.breakdown-row span,
.summary-row span { color: #50607a; }
.breakdown-total {
  margin-top: 8px;
  padding-top: 14px;
  border-bottom: 0;
}
.breakdown-total strong { font-size: 24px; color: #122742; }
.quote-panel { display: grid; gap: 14px; }
.summary-row.highlight {
  margin-top: 10px;
  padding: 14px;
  border: 1px solid #d9ebff;
  border-radius: 14px;
  background: #f4faff;
}
.tip-card p { margin: 0; color: #59687d; line-height: 1.6; }

.section-title {
  text-align: center;
  max-width: 860px;
  margin: 0 auto 28px;
}
.section-title.left { text-align: left; margin: 0 0 24px; }
.section-title h2 {
  margin: 0 0 10px;
  font-size: clamp(32px, 3vw, 44px);
  color: #15345f;
}
.section-title p { margin: 0; color: var(--muted); font-size: 18px; }
.features-section,
.how-section,
.pricing-section,
.contact-section {
  padding: 70px 0;
}
.feature-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.feature-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px 18px;
  text-align: center;
  box-shadow: 0 12px 28px rgba(17, 29, 49, 0.05);
}
.feature-card .icon {
  width: 54px;
  height: 54px;
  margin: 0 auto 14px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  color: #147df1;
  background: #eef6ff;
  font-size: 26px;
}
.feature-card h3 { margin: 0 0 10px; color: #14345d; }
.feature-card p { margin: 0; color: var(--muted); line-height: 1.55; }

.two-col {
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  gap: 26px;
  align-items: center;
}
.process-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 22px;
}
.step {
  min-width: 108px;
  padding: 14px 16px;
  border-radius: 16px;
  background: #ffffff;
  border: 1px solid var(--line);
  box-shadow: 0 10px 24px rgba(17, 29, 49, 0.06);
  text-align: center;
}
.step b {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #ebf5ff;
  color: #1279ef;
  margin-bottom: 8px;
}
.step span { display: block; font-weight: 700; color: #18375d; }
.arrow { color: #9db4d3; font-size: 26px; font-weight: 700; }
.bullet-list {
  margin: 0;
  padding-left: 18px;
  color: #51617b;
  line-height: 1.8;
}
.preview-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 14px;
  box-shadow: var(--shadow);
}
.preview-card img { border-radius: 16px; }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.pricing-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 10px 28px rgba(17, 29, 49, 0.06);
}
.pricing-card h3 { margin: 0 0 8px; color: #12365f; }
.price {
  font-size: 40px;
  font-weight: 800;
  color: #0f2037;
  margin-bottom: 10px;
}
.price span { font-size: 16px; font-weight: 700; color: #5c6a7d; margin-left: 4px; }
.pricing-card p { color: var(--muted); min-height: 44px; }
.pricing-card ul { margin: 0; padding-left: 18px; color: #4f5e73; line-height: 1.8; }
.pricing-card.featured {
  border-color: #bfddff;
  background: linear-gradient(180deg, #ffffff 0%, #f5fbff 100%);
  transform: translateY(-6px);
}
.badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 8px 10px;
  border-radius: 999px;
}

.contact-card {
  background: linear-gradient(135deg, #0d2241 0%, #133a6f 70%, #0c5ac9 100%);
  color: #fff;
  padding: 38px;
  border-radius: 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  box-shadow: 0 24px 60px rgba(11, 31, 61, .2);
}
.contact-card h2 { margin: 0 0 10px; font-size: clamp(30px, 3vw, 48px); }
.contact-card p:last-child { margin: 0; color: #dce9ff; font-size: 18px; }

.site-footer {
  background: #08192e;
  color: #caddff;
  padding: 20px 0;
}
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}
.footer-row img { height: 42px; }
.footer-row p { margin: 0; }

@media (max-width: 1150px) {
  .hero-grid,
  .calculator-grid,
  .two-col,
  .pricing-grid,
  .feature-cards { grid-template-columns: 1fr 1fr; }
  .breakdown-grid { grid-template-columns: 1fr; }
  .hero-side-cards { position: static; margin-top: 16px; }
  .hero-visual { min-height: auto; }
}

@media (max-width: 900px) {
  .nav { grid-template-columns: auto auto 1fr; }
  .nav-toggle { display: inline-block; justify-self: end; }
  .nav-links,
  .nav-actions {
    display: none;
  }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 88px;
    left: 16px;
    right: 16px;
    background: rgba(7,21,41,.96);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 18px;
    flex-direction: column;
    padding: 16px;
    gap: 16px;
  }
  .hero-grid,
  .calculator-grid,
  .two-col,
  .pricing-grid,
  .feature-cards { grid-template-columns: 1fr; }
  .hero-subtitle { font-size: 20px; }
  .form-grid { grid-template-columns: 1fr 1fr; }
  .result-box strong { font-size: 28px; }
  .contact-card,
  .footer-row { grid-template-columns: 1fr; display: grid; text-align: center; justify-items: center; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 20px, 1200px); }
  .brand img { height: 44px; }
  .hero { padding-top: 28px; }
  .hero h1 { font-size: 34px; }
  .hero-text { font-size: 17px; }
  .hero-buttons,
  .form-actions { flex-direction: column; }
  .form-grid,
  .result-cards { grid-template-columns: 1fr; }
  .calculator-shell { padding: 12px; }
  .calc-panel { padding: 18px; }
  .side-card { min-width: auto; }
  .note-top, .note-bottom { display: none; }
  .printer-card { width: 100%; }
}

/* V5 – auth + app */
.auth-wrap{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 20% 10%,rgba(36,157,255,.22),transparent 30%),linear-gradient(135deg,#07182d,#0d315c);padding:24px}.auth-card{width:min(500px,100%);background:#fff;border-radius:26px;padding:32px;box-shadow:0 30px 70px rgba(0,0,0,.28)}.auth-logo{height:64px;width:auto;margin:0 auto 24px}.auth-card h1{margin:0 0 8px;text-align:center;color:#15345f}.auth-card>p{text-align:center;color:#66748a;margin:0 0 24px}.auth-form{display:grid;gap:14px}.auth-form label{display:grid;gap:8px;font-weight:700;color:#405068}.auth-form input{height:50px;border:1px solid #d7e2f0;border-radius:12px;padding:0 14px;font:inherit}.auth-links{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:#0c6bdc;margin-top:4px}.auth-footer{text-align:center;color:#66748a;margin-top:20px}.auth-footer a{color:#0c6bdc;font-weight:700}.back{display:block;text-align:center;color:#d6e9ff;margin-top:18px}.notice{border-radius:12px;padding:12px 14px;margin:0 0 16px;font-size:14px}.notice.error{background:#fff1f2;border:1px solid #fecdd3;color:#9f1239}.notice.success{background:#ecfdf5;border:1px solid #bbf7d0;color:#166534}.small-note{font-size:13px;color:#718096;line-height:1.5}.app{display:grid;grid-template-columns:250px 1fr;min-height:100vh;background:#eef3f9}.sidebar{background:linear-gradient(180deg,#07182d,#0d315c);color:#fff;padding:24px 18px;position:sticky;top:0;height:100vh}.sidebar img{height:56px;width:auto;margin-bottom:28px}.menu{display:grid;gap:8px}.menu a{padding:12px 14px;border-radius:12px;color:#cfe3ff;font-weight:700}.menu a.active,.menu a:hover{background:rgba(255,255,255,.1);color:#fff}.main{padding:24px;min-width:0}.topbar{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:22px}.topbar h1{margin:0;color:#15345f}.user{background:#fff;border:1px solid #dfe7f2;border-radius:14px;padding:10px 14px;box-shadow:0 8px 20px rgba(17,29,49,.05)}.user a{color:#0c6bdc;font-weight:700;margin-left:10px}.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.kpi,.panel{background:#fff;border:1px solid #dfe7f2;border-radius:20px;box-shadow:0 10px 26px rgba(17,29,49,.05)}.kpi{padding:20px}.kpi span{color:#66748a;font-weight:700}.kpi strong{display:block;font-size:30px;margin-top:6px;color:#15345f}.grid-app{display:grid;grid-template-columns:1.25fr .75fr;gap:18px;margin-top:18px}.panel{padding:20px}.panel h2{margin:0 0 16px;color:#15345f}.list{display:grid;gap:10px}.row{display:flex;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px solid #edf2f8}.status{padding:6px 10px;border-radius:999px;background:#eaf8ee;color:#168746;font-size:12px;font-weight:800}.quick{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}.quick a{background:#fff;border:1px solid #dfe7f2;border-radius:16px;padding:18px;text-align:center;font-weight:800;color:#194a80}.demo-banner{background:#eef7ff;border:1px solid #cce5ff;color:#20558e;padding:12px 16px;border-radius:14px;margin-bottom:18px}.app-form{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.app-form label{display:grid;gap:7px;font-size:14px;font-weight:700;color:#405068}.app-form input,.app-form select{height:46px;border:1px solid #d7e2f0;border-radius:11px;padding:0 12px;font:inherit}.app-form .wide{grid-column:1/-1}.table-wrap{overflow:auto}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{text-align:left;padding:12px;border-bottom:1px solid #edf2f8;white-space:nowrap}.data-table th{font-size:13px;color:#63718a;background:#f7faff}.empty{padding:28px;text-align:center;color:#718096}.app-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}@media(max-width:900px){.app{grid-template-columns:1fr}.sidebar{position:relative;height:auto}.menu{grid-template-columns:repeat(2,1fr)}.kpis,.grid-app{grid-template-columns:1fr 1fr}.quick{grid-template-columns:1fr}.app-form{grid-template-columns:1fr 1fr}}@media(max-width:640px){.kpis,.grid-app,.app-form{grid-template-columns:1fr}.main{padding:14px}.topbar{align-items:flex-start;flex-direction:column}.auth-card{padding:24px}.auth-links{flex-direction:column}}