/* fvoip.com — design system (from brand mockup: teal + navy, clean SaaS) */
:root{
  --teal:#0f9b82;
  --teal-dark:#0b7d69;
  --teal-bright:#2bb39a;
  --teal-pale:#e8f5f1;
  --mint:#f2f9f7;
  --navy:#1b2a4a;
  --ink:#1e293b;
  --ink-2:#475569;
  --ink-3:#94a3b8;
  --line:#e2e8f0;
  --bg:#ffffff;
  --bg-alt:#f8fafc;
  --danger:#dc2626;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 1px 3px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.07);
  --shadow-lg:0 4px 12px rgba(15,23,42,.08),0 20px 48px rgba(15,23,42,.12);
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
h1,h2,h3,h4{color:var(--navy);line-height:1.15;letter-spacing:-.02em}
h1{font-size:clamp(34px,5vw,56px);font-weight:800}
h2{font-size:clamp(26px,3.4vw,38px);font-weight:750}
h3{font-size:20px;font-weight:650}
.accent{color:var(--teal)}
.dot{color:var(--teal-bright)}

/* ---------- logo (pure CSS wordmark, matches supplied logo) ---------- */
.logo{display:inline-flex;align-items:baseline;text-decoration:none!important;font-weight:800;letter-spacing:-.035em;line-height:1}
.logo .lf{color:var(--teal-bright)}
.logo .lrest{color:var(--navy)}
.logo .li{position:relative;color:var(--navy)}
.logo .li::before{content:"";position:absolute;top:.06em;left:50%;transform:translateX(-50%);width:.16em;height:.16em;border-radius:50%;background:var(--teal-bright)}
.logo .li span{visibility:hidden}
.logo-nav{font-size:30px}
.logo-footer{font-size:26px}

/* ---------- promo bar ---------- */
.promo{background:var(--navy);color:#e2e8f0;text-align:center;font-size:14px;padding:9px 16px}
.promo a{color:var(--teal-bright);font-weight:600}
.promo .pulse{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--teal-bright);margin-right:8px;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px}
.nav-links{display:flex;list-style:none;gap:26px;margin-left:auto}
.nav-links a{color:var(--ink);font-weight:520;font-size:15.5px}
.nav-links a:hover{color:var(--teal);text-decoration:none}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle svg{width:26px;height:26px;stroke:var(--navy)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font);font-weight:600;font-size:15.5px;border-radius:10px;padding:11px 22px;border:1.5px solid transparent;cursor:pointer;transition:all .15s ease;text-decoration:none!important;white-space:nowrap}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-dark);transform:translateY(-1px);box-shadow:0 6px 16px rgba(15,155,130,.28)}
.btn-outline{background:#fff;color:var(--teal);border-color:var(--teal)}
.btn-outline:hover{background:var(--teal-pale)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink-3)}
.btn-lg{padding:15px 30px;font-size:17px;border-radius:12px}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:#24365e}

/* ---------- hero ---------- */
.hero{padding:84px 0 56px;background:linear-gradient(180deg,#fff 0%,var(--mint) 100%)}
.hero-photo{padding:0;background:
  linear-gradient(90deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.82) 30%,rgba(255,255,255,0) 56%),
  url(img/hero-office.webp) right center/cover no-repeat #f4f6f8}
.hero-copy{max-width:600px;padding:110px 0 120px}
.hero-mobile-img{display:none}
.iconband{background:#fff}
.iconband .icon-row{margin-top:0;border-top:0;padding:26px 0;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero p.sub{font-size:19px;color:var(--ink-2);margin:22px 0 30px;max-width:520px}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-art{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-lg);padding:36px;text-align:center}
.icon-row{display:flex;flex-wrap:wrap;margin-top:48px;border-top:1px solid var(--line);padding-top:28px}
.icon-item{display:flex;align-items:center;gap:12px;padding:0 26px;border-right:1px solid var(--line);font-size:14.5px;font-weight:600;color:var(--navy);line-height:1.35}
.icon-item:first-child{padding-left:0}
.icon-item:last-child{border-right:0}
.icon-item .ic{width:42px;height:42px;flex:0 0 42px;border-radius:50%;background:var(--teal-pale);display:flex;align-items:center;justify-content:center}
.icon-item .ic svg{width:21px;height:21px;stroke:var(--teal);fill:none;stroke-width:1.9}

/* ---------- trust bar ---------- */
.trustbar{background:var(--mint);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0}
.trustbar .container{display:flex;justify-content:space-around;flex-wrap:wrap;gap:16px}
.trust-item{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--navy);font-size:15px}
.trust-item svg{width:20px;height:20px;stroke:var(--teal);fill:none;stroke-width:2}
.trust-item .stars{color:var(--teal);letter-spacing:2px}

/* ---------- sections ---------- */
.section{padding:76px 0}
.section-alt{background:var(--bg-alt)}
.section-mint{background:var(--mint)}
.section-head{text-align:center;max-width:720px;margin:0 auto 48px}
.section-head p{color:var(--ink-2);font-size:17.5px;margin-top:14px}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--teal);margin-bottom:14px}
.pill{display:inline-block;background:var(--teal-pale);color:var(--teal-dark);font-size:13.5px;font-weight:600;border-radius:999px;padding:5px 14px;margin-bottom:16px}

/* page header (interior pages) */
.page-header{padding:64px 0 48px;background:linear-gradient(180deg,#fff 0%,var(--mint) 100%);border-bottom:1px solid var(--line)}
.page-header p{font-size:18px;color:var(--ink-2);margin:18px 0 26px;max-width:720px}
.page-header .actions{display:flex;gap:12px;flex-wrap:wrap}
.crumbs{font-size:13.5px;color:var(--ink-3);margin-bottom:18px}
.crumbs a{color:var(--ink-3)}

/* industry hero image band */
.industry-hero-band{padding:44px 0 8px}
.industry-hero-img{width:100%;height:auto;border-radius:16px;box-shadow:0 18px 44px -18px rgba(15,23,42,.35);border:1px solid var(--line)}
.crumbs a:hover{color:var(--teal)}

/* ---------- cards & grids ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.card h3{margin-bottom:10px}
.card p{color:var(--ink-2);font-size:15px}
.card .ic{width:46px;height:46px;border-radius:12px;background:var(--teal-pale);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.card .ic svg{width:23px;height:23px;stroke:var(--teal);fill:none;stroke-width:1.9}
.card-link{display:block;text-decoration:none!important}
.card-link:hover h3{color:var(--teal)}
.card .more{display:inline-block;margin-top:14px;font-weight:600;font-size:14.5px;color:var(--teal)}

/* split layout */
.split-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.lead{font-size:17px;color:var(--ink-2);margin-bottom:22px;line-height:1.68}

/* checklist */
.checks{list-style:none;margin-top:24px}
.checks li{display:flex;gap:14px;margin-bottom:18px;align-items:flex-start}
.checks .ck{flex:0 0 26px;width:26px;height:26px;border-radius:50%;background:var(--teal-pale);display:flex;align-items:center;justify-content:center;margin-top:2px}
.checks .ck svg{width:14px;height:14px;stroke:var(--teal);stroke-width:3;fill:none}
.checks strong{display:block;color:var(--navy);font-size:15.5px}
.checks span{color:var(--ink-2);font-size:14.5px}

/* savings compare card */
.compare-card{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:28px;position:sticky;top:96px}
.compare-card .ct{font-weight:700;color:var(--navy);font-size:18px}
.compare-card .cs{color:var(--ink-3);font-size:13.5px;margin-bottom:18px}
.compare-row{display:flex;justify-content:space-between;align-items:center;padding:15px 14px;border-radius:10px;margin-bottom:8px;border:1px solid var(--line)}
.compare-row.hl{background:var(--teal-pale);border-color:var(--teal-bright)}
.compare-row .cl strong{display:block;color:var(--navy);font-size:15px}
.compare-row .cl span{color:var(--ink-2);font-size:13px}
.compare-row .cp{font-weight:800;font-size:22px;color:var(--navy)}
.compare-row.hl .cp{color:var(--teal-dark)}
.strike{text-decoration:line-through;color:var(--ink-3);font-weight:500;font-size:15px;margin-right:6px}
.compare-foot{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding-top:16px;border-top:1px dashed var(--line)}
.compare-foot .kl{color:var(--ink-2);font-size:14px}
.compare-foot .kv{font-weight:800;font-size:20px;color:var(--teal)}

/* ---------- pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan{background:#fff;border:1.5px solid var(--line);border-radius:16px;padding:34px 30px;display:flex;flex-direction:column;position:relative}
.plan.popular{border-color:var(--teal);box-shadow:var(--shadow-lg)}
.plan .badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--teal);color:#fff;font-size:12.5px;font-weight:700;padding:4px 16px;border-radius:999px;letter-spacing:.04em}
.plan .pn{font-size:19px;font-weight:700;color:var(--navy)}
.plan .pf{color:var(--ink-2);font-size:14px;margin:4px 0 18px}
.plan .pp{font-size:46px;font-weight:800;color:var(--navy);letter-spacing:-.03em}
.plan .pp small{font-size:15px;color:var(--ink-3);font-weight:500}
.plan .pa{color:var(--teal-dark);font-size:13.5px;font-weight:600;margin-bottom:22px}
.plan ul{list-style:none;margin:0 0 26px;flex:1}
.plan li{padding:7px 0;color:var(--ink-2);font-size:14.5px;display:flex;gap:10px;align-items:flex-start}
.plan li svg{width:16px;height:16px;stroke:var(--teal);stroke-width:2.6;fill:none;flex:0 0 16px;margin-top:4px}

/* ---------- tables ---------- */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
table.tbl{width:100%;border-collapse:collapse;font-size:15px;background:#fff;min-width:560px}
.tbl th{background:var(--bg-alt);text-align:left;padding:13px 18px;font-weight:700;color:var(--navy);border-bottom:2px solid var(--line);font-size:14px}
.tbl td{padding:13px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top}
.tbl tr:last-child td{border-bottom:0}
.tbl td.us{color:var(--teal-dark);font-weight:600;background:rgba(15,155,130,.045)}
.tbl td.lab{font-weight:600;color:var(--navy)}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:12px;background:#fff}
.faq summary{cursor:pointer;padding:18px 22px;font-weight:600;color:var(--navy);font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--teal);font-weight:400;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .fa{padding:0 22px 18px;color:var(--ink-2);font-size:15px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--navy);border-radius:20px;padding:56px 48px;text-align:center;color:#fff}
.cta-band h2{color:#fff}
.cta-band p{color:#cbd5e1;font-size:17px;margin:14px auto 28px;max-width:560px}

/* ---------- link hubs / directories ---------- */
.linkgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px 22px;list-style:none}
.linkgrid a{color:var(--ink-2);font-size:14.5px}
.linkgrid a:hover{color:var(--teal)}
.hub-note{color:var(--ink-3);font-size:14px;margin-top:16px}

/* ---------- phone product images ---------- */
.phone-photo{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:24px;display:flex;justify-content:center}
.phone-photo img{max-width:340px;width:100%;height:auto}
.tbl td.thumb{width:64px;padding:6px 10px}
.tbl td.thumb img{width:56px;height:56px;object-fit:contain;background:#fff;border-radius:6px}

/* ---------- specs ---------- */
.spec-list{list-style:none;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.spec-list li{display:flex;justify-content:space-between;gap:20px;padding:12px 20px;font-size:14.5px;border-bottom:1px solid var(--line);background:#fff}
.spec-list li:nth-child(odd){background:var(--bg-alt)}
.spec-list li:last-child{border-bottom:0}
.spec-list .sk{font-weight:600;color:var(--navy)}
.spec-list .sv{color:var(--ink-2);text-align:right}
.price-tag{display:flex;gap:14px;align-items:baseline;margin:18px 0}
.price-tag .buy{font-size:32px;font-weight:800;color:var(--navy)}
.price-tag .rent{color:var(--teal-dark);font-weight:600;font-size:15.5px}

/* ---------- footer ---------- */
.footer{background:var(--navy);color:#94a3b8;padding:64px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.footer h4{color:#fff;font-size:14px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px}
.footer ul{list-style:none}
.footer li{margin-bottom:9px}
.footer a{color:#94a3b8;font-size:14.5px}
.footer a:hover{color:var(--teal-bright);text-decoration:none}
.footer .fdesc{font-size:14.5px;margin-top:14px;max-width:280px;line-height:1.6}
.footer .logo .lrest,.footer .logo .li{color:#fff}
.footer-bottom{border-top:1px solid rgba(148,163,184,.2);padding-top:26px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13.5px}
.footer-bottom a{margin-left:18px}

/* ---------- blog ---------- */
.article{max-width:780px;margin:0 auto;padding:56px 24px 72px}
.article h1{font-size:clamp(30px,4vw,42px);margin-bottom:14px}
.article .meta{color:var(--ink-3);font-size:14.5px;margin-bottom:36px}
.article h2{font-size:27px;margin:42px 0 16px}
.article h3{font-size:20px;margin:30px 0 12px}
.article p{margin-bottom:18px;color:#334155;font-size:16.5px;line-height:1.75}
.article ul,.article ol{margin:0 0 20px 24px;color:#334155;font-size:16.5px}
.article li{margin-bottom:8px}
.article table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px}
.article th{background:var(--bg-alt);text-align:left;padding:10px 14px;border:1px solid var(--line);color:var(--navy)}
.article td{padding:10px 14px;border:1px solid var(--line);color:var(--ink-2)}
.article blockquote{border-left:3px solid var(--teal);padding:6px 22px;margin:22px 0;color:var(--ink-2);font-style:italic}
.post-card{display:block;border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:#fff;text-decoration:none!important;transition:box-shadow .2s}
.post-card:hover{box-shadow:var(--shadow)}
.post-card .pc-cat{font-size:12.5px;font-weight:700;color:var(--teal);text-transform:uppercase;letter-spacing:.07em}
.post-card h3{margin:8px 0 10px}
.post-card p{color:var(--ink-2);font-size:14.5px}
.post-card .pc-meta{color:var(--ink-3);font-size:13px;margin-top:14px}

/* ---------- forms ---------- */
.form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:34px;box-shadow:var(--shadow)}
.form label{display:block;font-weight:600;font-size:14px;color:var(--navy);margin:16px 0 6px}
.form input,.form select,.form textarea{width:100%;padding:11px 14px;border:1.5px solid var(--line);border-radius:9px;font-family:var(--font);font-size:15px;color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--teal)}

/* ---------- misc ---------- */
.center{text-align:center}
.mt-0{margin-top:0}.mt-24{margin-top:24px}.mt-40{margin-top:40px}.mt-56{margin-top:56px}
.muted{color:var(--ink-2)}
.small{font-size:14px}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .hero-grid,.split-grid{grid-template-columns:1fr;gap:36px}
  .hero-photo{background-position:72% center}
  .hero-copy{max-width:520px;padding:84px 0 96px}
  .compare-card{position:static}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .plans{grid-template-columns:1fr;max-width:440px;margin:0 auto}
  .linkgrid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .icon-item{padding:8px 18px}
}
@media(max-width:720px){
  .nav-links,.nav-cta .btn-ghost{display:none}
  .nav-toggle{display:block;margin-left:auto}
  .nav.open .nav-links{display:flex;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:12px 24px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav.open .nav-links li{padding:10px 0;border-bottom:1px solid var(--bg-alt)}
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .linkgrid{grid-template-columns:repeat(2,1fr)}
  .icon-row{gap:14px}
  .icon-item{border-right:0;padding:6px 0;flex:1 1 46%}
  .hero{padding:56px 0 40px}
  .hero-photo{background:linear-gradient(180deg,#fff 0%,var(--mint) 100%);padding:0}
  .hero-copy{padding:56px 0 44px}
  .hero-mobile-img{display:block;width:100%;height:auto}
  .section{padding:56px 0}
  .cta-band{padding:40px 24px}
  .footer-grid{grid-template-columns:1fr}
}