/* Smart Roof Net — responsive, accessible, lightweight website */
:root {
  --navy: #10253f;
  --navy-deep: #0a192b;
  --blue: #1769d2;
  --blue-light: #eaf3ff;
  --cyan: #27c2d7;
  --ink: #18283b;
  --muted: #617187;
  --surface: #f5f8fc;
  --white: #ffffff;
  --line: #dce5ef;
  --radius: 18px;
  --shadow: 0 16px 42px rgba(16, 37, 63, .10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid var(--cyan); outline-offset: 3px;
}
.skip-link { position: absolute; left: 12px; top: -60px; z-index: 1000; background: white; color: var(--navy); padding: 10px 14px; border-radius: 8px; }
.skip-link:focus { top: 12px; }
.container { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.site-header { position: relative; z-index: 20; background: rgba(255,255,255,.97); border-bottom: 1px solid rgba(220,229,239,.85); }
.header-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--navy); text-decoration: none; font-weight: 850; letter-spacing: -.045em; font-size: 1.28rem; white-space: nowrap; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 13px; color: white; background: linear-gradient(145deg, var(--blue), var(--cyan)); box-shadow: 0 7px 18px rgba(23,105,210,.22); }
.brand-mark svg { width: 26px; height: 26px; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { text-decoration: none; color: #405168; font-size: .94rem; font-weight: 650; transition: color .2s ease; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--blue); }
.nav .nav-cta { color: white; background: var(--blue); padding: 11px 17px; border-radius: 999px; box-shadow: 0 6px 16px rgba(23,105,210,.17); }
.nav .nav-cta:hover { color: white; background: #0f56b5; }
.menu-toggle { display: none; border: 1px solid var(--line); background: white; color: var(--navy); width: 45px; height: 45px; border-radius: 12px; cursor: pointer; }
.menu-toggle svg { width: 22px; height: 22px; }
.hero { overflow: hidden; position: relative; background: linear-gradient(125deg, #0b1e34 0%, #103a68 62%, #126aa1 100%); color: white; }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; }
.hero::before { width: 470px; height: 470px; right: -90px; top: -180px; border: 1px solid rgba(255,255,255,.15); box-shadow: 0 0 0 42px rgba(255,255,255,.035), 0 0 0 90px rgba(255,255,255,.025); }
.hero::after { width: 260px; height: 260px; right: 11%; bottom: -190px; background: rgba(39,194,215,.13); filter: blur(2px); }
.hero-grid { min-height: 590px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 54px; align-items: center; padding-block: 76px; position: relative; z-index: 1; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; text-transform: uppercase; letter-spacing: .13em; font-size: .76rem; font-weight: 800; color: #79e6f0; }
.eyebrow::before { content: ""; width: 24px; height: 2px; background: currentColor; }
.hero h1 { font-size: clamp(2.7rem, 5vw, 4.55rem); letter-spacing: -.055em; line-height: 1.06; max-width: 720px; margin: 20px 0; }
.hero h1 span { color: #72e3ed; }
.hero-copy { color: #d7e5f5; font-size: 1.08rem; max-width: 570px; margin: 0 0 28px; }
.button-row { display: flex; flex-wrap: wrap; gap: 13px; align-items: center; }
.btn { display: inline-flex; justify-content: center; align-items: center; gap: 10px; padding: 13px 20px; border-radius: 999px; border: 1px solid transparent; font: inherit; font-weight: 750; text-decoration: none; cursor: pointer; transition: transform .18s ease, background .18s ease, box-shadow .18s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--cyan); color: #09253c; box-shadow: 0 10px 25px rgba(39,194,215,.2); }
.btn-primary:hover { background: #62dce8; }
.btn-white { color: white; border-color: rgba(255,255,255,.36); background: rgba(255,255,255,.06); }
.btn-white:hover { background: rgba(255,255,255,.13); }
.btn-blue { background: var(--blue); color: white; box-shadow: 0 8px 20px rgba(23,105,210,.18); }
.btn-blue:hover { background: #0f56b5; }
.hero-note { display: flex; align-items: center; gap: 10px; color: #d7e5f5; font-size: .88rem; margin-top: 23px; }
.hero-note svg { color: #79e6f0; flex: 0 0 auto; }
.hero-visual { position: relative; min-height: 365px; display: grid; place-items: center; }
.signal-card { width: min(100%, 420px); min-height: 300px; padding: 28px; border: 1px solid rgba(255,255,255,.24); border-radius: 28px; background: linear-gradient(145deg, rgba(255,255,255,.15), rgba(255,255,255,.045)); box-shadow: 0 28px 70px rgba(0,0,0,.18); backdrop-filter: blur(12px); position: relative; }
.signal-top { display: flex; align-items: center; justify-content: space-between; color: #dcecff; font-size: .85rem; }
.status-dot { width: 8px; height: 8px; display: inline-block; border-radius: 50%; background: #73e6b1; margin-right: 7px; box-shadow: 0 0 0 5px rgba(115,230,177,.12); }
.signal-icon { width: 86px; height: 86px; border-radius: 25px; display: grid; place-items: center; margin: 35px auto 20px; background: linear-gradient(145deg, #7ce7ed, #198bd2); color: #0a2540; }
.signal-icon svg { width: 48px; height: 48px; }
.signal-card h2 { text-align: center; color: white; font-size: 1.45rem; margin: 0; letter-spacing: -.025em; }
.signal-card p { text-align: center; color: #d7e5f5; margin: 6px 0 0; font-size: .92rem; }
.signal-lines { display: flex; justify-content: center; align-items: end; gap: 6px; height: 25px; margin-top: 20px; }
.signal-lines i { display: block; width: 7px; border-radius: 6px; background: #75e5ee; }
.signal-lines i:nth-child(1) { height: 7px; opacity: .45; }.signal-lines i:nth-child(2) { height: 12px; opacity: .65; }.signal-lines i:nth-child(3) { height: 18px; opacity: .8; }.signal-lines i:nth-child(4) { height: 25px; }
.floating-tag { position: absolute; background: white; color: var(--navy); padding: 13px 16px; border-radius: 14px; box-shadow: var(--shadow); font-size: .84rem; font-weight: 800; }
.floating-tag svg { color: var(--blue); vertical-align: middle; margin-right: 6px; }
.tag-one { left: -6px; bottom: 26px; }.tag-two { right: -4px; top: 24px; }
.trust-strip { border-bottom: 1px solid var(--line); background: white; }
.trust-inner { min-height: 92px; display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 10px; color: #41536a; font-size: .91rem; font-weight: 700; }
.trust-item svg { color: var(--blue); flex: 0 0 auto; }
.section { padding-block: 88px; }
.section-soft { background: var(--surface); }
.section-heading { max-width: 690px; margin: 0 auto 42px; text-align: center; }
.kicker { color: var(--blue); font-size: .77rem; letter-spacing: .13em; font-weight: 850; text-transform: uppercase; }
.section-heading h2, .content-heading { color: var(--navy); font-size: clamp(2rem, 3.5vw, 3rem); line-height: 1.14; letter-spacing: -.045em; margin: 12px 0 14px; }
.section-heading p { color: var(--muted); margin: 0; font-size: 1.02rem; }
.service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.service-card { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: white; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.service-card:hover { transform: translateY(-5px); border-color: #b8d5fb; box-shadow: var(--shadow); }
.service-icon { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 16px; color: var(--blue); background: var(--blue-light); margin-bottom: 20px; }
.service-icon svg { width: 27px; height: 27px; }
.service-card h3 { margin: 0 0 8px; color: var(--navy); font-size: 1.2rem; letter-spacing: -.025em; }
.service-card p { color: var(--muted); margin: 0 0 18px; font-size: .95rem; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--blue); font-weight: 800; font-size: .92rem; text-decoration: none; }
.text-link:hover { gap: 12px; }
.split { display: grid; grid-template-columns: .92fr 1.08fr; align-items: center; gap: 70px; }
.feature-panel { position: relative; border-radius: 28px; padding: 36px; min-height: 355px; overflow: hidden; background: linear-gradient(145deg, #e7f3ff, #e7fbfb); }
.feature-panel::before { content: ""; position: absolute; width: 260px; height: 260px; right: -50px; bottom: -100px; border: 1px solid #b9d8f2; border-radius: 50%; box-shadow: 0 0 0 30px rgba(255,255,255,.34), 0 0 0 65px rgba(255,255,255,.25); }
.feature-panel svg { position: relative; z-index: 1; width: 100%; max-height: 290px; }
.content-copy { color: var(--muted); font-size: 1rem; }
.check-list { list-style: none; padding: 0; margin: 24px 0 28px; display: grid; gap: 13px; }
.check-list li { display: flex; gap: 11px; align-items: flex-start; color: #354a61; font-weight: 650; }
.check-list svg { color: #138c75; flex: 0 0 auto; margin-top: 4px; }
.cta-band { padding: 56px 0; background: linear-gradient(110deg, #10253f, #124b78); color: white; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.cta-inner h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); line-height: 1.15; letter-spacing: -.04em; margin: 0 0 8px; }
.cta-inner p { margin: 0; color: #d4e5f7; }
.page-hero { padding: 74px 0 70px; color: white; background: linear-gradient(120deg, #0b1e34, #14588b); }
.page-hero .eyebrow { color: #79e6f0; }
.page-hero h1 { max-width: 820px; font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -.05em; line-height: 1.08; margin: 15px 0; }
.page-hero p { max-width: 690px; margin: 0; color: #d7e5f5; font-size: 1.08rem; }
.breadcrumb { margin-top: 22px; font-size: .88rem; color: #c5d9ee; }
.breadcrumb a { color: white; text-underline-offset: 4px; }
.content-layout { display: grid; grid-template-columns: 1fr .8fr; gap: 54px; align-items: start; }
.prose h2 { color: var(--navy); font-size: 1.55rem; letter-spacing: -.03em; margin: 30px 0 10px; }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { color: var(--muted); }
.prose a { color: var(--blue); }
.info-card { padding: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.info-card h2, .info-card h3 { color: var(--navy); margin-top: 0; }
.info-row { display: flex; align-items: flex-start; gap: 13px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.info-row:last-child { border-bottom: 0; }
.info-row > svg { color: var(--blue); flex: 0 0 auto; margin-top: 4px; }
.info-row strong { display: block; color: var(--navy); }
.info-row span, .info-row a { color: var(--muted); overflow-wrap: anywhere; }
.contact-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 36px; align-items: start; }
.contact-panel { padding: 32px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.contact-panel h2 { margin-top: 0; color: var(--navy); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: grid; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: .9rem; font-weight: 750; color: #34485f; }
.form-field input, .form-field select, .form-field textarea { width: 100%; border: 1px solid #cbd8e6; border-radius: 11px; padding: 12px 13px; color: var(--ink); background: white; font: inherit; }
.form-field textarea { min-height: 135px; resize: vertical; }
.form-note { color: var(--muted); font-size: .83rem; margin: 12px 0 18px; }
.notice { padding: 15px 18px; border-radius: 12px; background: #fff7e6; color: #694b10; border: 1px solid #f2dfad; font-size: .92rem; }
.footer { background: #09192b; color: #d2deeb; padding: 54px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 50px; padding-bottom: 36px; }
.footer .brand { color: white; }
.footer-about { max-width: 360px; color: #aebfd1; font-size: .92rem; margin: 16px 0; }
.footer h2 { color: white; font-size: .96rem; margin: 5px 0 16px; }
.footer-links { display: grid; gap: 10px; }
.footer-links a { color: #bdccdc; font-size: .9rem; text-decoration: none; }
.footer-links a:hover { color: #7ce7ed; }
.footer-phone { display: inline-block; color: white; font-weight: 800; text-decoration: none; margin-top: 7px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.13); padding-top: 20px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #98abc0; font-size: .83rem; }
.footer-legal { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-legal a { color: #bdccdc; text-decoration: none; }
.footer-legal a:hover { color: white; }
.faq-list { max-width: 850px; margin-inline: auto; display: grid; gap: 13px; }
.faq-list details { padding: 20px 22px; background: white; border: 1px solid var(--line); border-radius: 14px; }
.faq-list summary { color: var(--navy); font-weight: 800; cursor: pointer; }
.faq-list details p { margin-bottom: 0; color: var(--muted); }
.small-print { color: var(--muted); font-size: .86rem; }
@media (max-width: 900px) {
  .nav { gap: 17px; }
  .nav a { font-size: .88rem; }
  .hero-grid { gap: 25px; grid-template-columns: 1fr .8fr; }
  .tag-one { left: -15px; }.tag-two { right: -12px; }
  .split { gap: 38px; }
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .container { width: min(100% - 32px, 560px); }
  .header-inner { min-height: 72px; }
  .menu-toggle { display: grid; place-items: center; }
  .nav { display: none; position: absolute; left: 16px; right: 16px; top: calc(100% + 7px); padding: 14px; background: white; border: 1px solid var(--line); border-radius: 17px; box-shadow: var(--shadow); align-items: stretch; gap: 2px; }
  .nav.is-open { display: flex; flex-direction: column; }
  .nav a { padding: 12px 13px; border-radius: 9px; font-size: .96rem; }
  .nav a:hover, .nav a[aria-current="page"] { background: var(--blue-light); }
  .nav .nav-cta { text-align: center; margin-top: 5px; }
  .hero-grid { grid-template-columns: 1fr; min-height: auto; padding-block: 62px 55px; gap: 22px; }
  .hero h1 { font-size: clamp(2.55rem, 11vw, 3.6rem); }
  .hero-copy { font-size: 1rem; }
  .hero-visual { min-height: 325px; margin: 0 8px; }
  .signal-card { min-height: 275px; padding: 23px; }
  .signal-icon { margin-top: 24px; }
  .tag-one { left: -7px; bottom: 12px; }.tag-two { right: -5px; top: 9px; }
  .trust-inner { justify-content: flex-start; padding-block: 20px; gap: 16px 24px; }
  .trust-item { width: calc(50% - 12px); font-size: .84rem; }
  .section { padding-block: 64px; }
  .section-heading { margin-bottom: 30px; }
  .service-grid { grid-template-columns: 1fr; gap: 14px; }
  .service-card { padding: 24px; }
  .split, .content-layout, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .feature-panel { min-height: 280px; padding: 24px; order: 2; }
  .content-copy { order: 1; }
  .cta-inner { align-items: flex-start; flex-direction: column; }
  .page-hero { padding: 55px 0 48px; }
  .page-hero h1 { font-size: clamp(2.4rem, 10vw, 3.3rem); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px 22px; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .form-grid { grid-template-columns: 1fr; }
  .form-field.full { grid-column: auto; }
}
@media (max-width: 390px) {
  .brand { font-size: 1.1rem; gap: 8px; }
  .brand-mark { width: 38px; height: 38px; }
  .button-row .btn { width: 100%; }
  .trust-item { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div:first-child { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}