/* HeedSync marketing site — shared stylesheet.
   Layout concept: full-width colour bands stacked vertically; each band's .wrap
   holds the 1100px measure and the side gutter. */

:root{
  --navy:#0A2540; --teal:#028090; --mint:#02C39A; --cloud:#F0F7F8;
  --amber:#E8791A; --red:#C0392B;
  --page:#FFFFFF; --surface:#FFFFFF; --lgray:#E2EEF0; --mgray:#6B8C9E; --text:#0A2540;
  --hero:#0A2540; --footer:#06192E;
  --shadow:0 2px 4px rgba(10,37,64,.04), 0 12px 32px rgba(10,37,64,.07);
  --serif:"DM Serif Display", Georgia, "Times New Roman", serif;
  --sans:"DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --teal:#35A9BA; --mint:#2FD4AE; --cloud:#0F2B42; --amber:#F19242; --red:#E8705F;
    --page:#07192B; --surface:#0E2639; --lgray:#1D3C54; --mgray:#92B2C4; --text:#E9F2F6;
    --hero:#041320; --footer:#030E18;
    --shadow:0 2px 4px rgba(0,0,0,.3), 0 12px 32px rgba(0,0,0,.35);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --teal:#35A9BA; --mint:#2FD4AE; --cloud:#0F2B42; --amber:#F19242; --red:#E8705F;
  --page:#07192B; --surface:#0E2639; --lgray:#1D3C54; --mgray:#92B2C4; --text:#E9F2F6;
  --hero:#041320; --footer:#030E18;
  --shadow:0 2px 4px rgba(0,0,0,.3), 0 12px 32px rgba(0,0,0,.35);
  color-scheme:dark;
}

*{box-sizing:border-box}
body{margin:0;background:var(--page);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--surface)}
img{max-width:100%}
.wrap{max-width:1100px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--serif);font-weight:400;text-wrap:balance;margin:0;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,5.2vw,3.5rem);line-height:1.1}
h2{font-size:clamp(1.65rem,3.4vw,2.4rem);line-height:1.15}
h3{font-size:1.2rem;line-height:1.3}
p{margin:0}
a{color:var(--teal)}
.eyebrow{font-family:var(--sans);font-size:.72rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--mint)}
.eyebrow.dk{color:var(--teal)}
.lede{font-size:1.08rem;color:var(--mgray);max-width:62ch}
.tnum{font-variant-numeric:tabular-nums}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* nav */
nav.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:color-mix(in srgb, var(--surface) 88%, transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--lgray)}
nav.site .wrap{display:flex;align-items:center;gap:28px;padding-block:14px}
.brand{display:flex;align-items:center;gap:9px;font-weight:600;font-size:1.05rem;color:var(--text);text-decoration:none;letter-spacing:-.01em}
.navlinks{display:flex;gap:24px;margin-left:auto;font-size:.92rem}
.navlinks a{color:var(--mgray);text-decoration:none}
.navlinks a:hover,.navlinks a[aria-current="page"]{color:var(--teal)}
@media (max-width:820px){.navlinks{display:none}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--sans);font-size:.95rem;font-weight:500;padding:11px 20px;border-radius:9px;border:1px solid transparent;text-decoration:none;cursor:pointer;transition:transform .12s ease, background .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--teal);color:#fff}
.btn-mint{background:var(--mint);color:#06253B;font-weight:600}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--lgray)}
.btn-ghost-light{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.28)}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.btn-lg{padding:14px 26px;font-size:1rem}

/* hero */
.hero{position:relative;background:var(--hero);color:#fff;overflow:hidden}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.hero::before{width:620px;height:620px;top:-320px;right:-180px;background:radial-gradient(circle,rgba(2,195,154,.26),transparent 68%)}
.hero::after{width:520px;height:520px;bottom:-300px;left:-140px;background:radial-gradient(circle,rgba(2,128,144,.34),transparent 70%)}
.hero .wrap{position:relative;padding-block:clamp(56px,9vw,96px);display:flex;flex-direction:column;gap:18px;align-items:flex-start}
.hero h1{color:#fff;max-width:20ch}
.hero p{color:rgba(255,255,255,.82);max-width:58ch;font-size:1.1rem}
.hero.slim .wrap{padding-block:clamp(44px,6vw,68px)}
.herofacts{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.fact{display:inline-flex;align-items:center;gap:7px;font-size:.84rem;color:rgba(255,255,255,.9);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:99px;padding:6px 13px}
.fact svg{flex:none}
.ctarow{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}

section{padding-block:clamp(48px,7vw,84px)}
section.tight{padding-block:clamp(34px,4.5vw,52px)}
.band-cloud{background:var(--cloud)}
.shead{display:flex;flex-direction:column;gap:10px;margin-bottom:34px;max-width:70ch}

/* generic cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(248px,1fr));gap:20px;align-items:start}
.card{background:var(--surface);border:1px solid var(--lgray);border-radius:16px;padding:26px 24px 24px;display:flex;flex-direction:column;gap:16px;min-width:0}
.card.featured{border-color:var(--teal);box-shadow:var(--shadow);position:relative}
.badge{position:absolute;top:-11px;left:24px;background:var(--teal);color:#fff;font-size:.66rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;padding:4px 11px;border-radius:99px}
.card .range{font-size:.78rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--mgray)}
.price{display:flex;align-items:flex-end;gap:7px;flex-wrap:wrap}
.price .amt{font-family:var(--serif);font-size:2.9rem;line-height:1;color:var(--text)}
.price .per{font-size:.9rem;color:var(--mgray);padding-bottom:5px}
.card ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;font-size:.92rem;color:var(--mgray)}
.card li{display:flex;gap:9px;align-items:flex-start}
.card li svg{flex:none;margin-top:5px}
.card .btn{width:100%;margin-top:auto}
.note{font-size:.84rem;color:var(--mgray)}

/* feature groups */
.groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(252px,1fr));gap:22px}
.group{min-width:0;display:flex;flex-direction:column;gap:10px}
.group h3{display:flex;align-items:center;gap:10px}
.group .dot{width:9px;height:9px;border-radius:50%;background:var(--mint);flex:none}
.group ul{list-style:none;margin:0;padding:0;font-size:.93rem;color:var(--mgray);display:flex;flex-direction:column;gap:5px}

/* day timeline */
.day{display:grid;grid-template-columns:repeat(auto-fit,minmax(184px,1fr));gap:0;border-top:2px solid var(--lgray)}
.slot{padding:20px 20px 22px 0;border-right:1px solid var(--lgray);min-width:0;position:relative}
.slot:last-child{border-right:0}
.slot::before{content:"";position:absolute;top:-7px;left:0;width:12px;height:12px;border-radius:50%;background:var(--mint);border:3px solid var(--page)}
.band-cloud .slot::before{border-color:var(--cloud)}
.slot .t{font-size:.76rem;font-weight:700;letter-spacing:.11em;text-transform:uppercase;color:var(--teal);margin-bottom:7px}
.slot h3{font-size:1.02rem;margin-bottom:5px}
.slot p{font-size:.9rem;color:var(--mgray)}
@media (max-width:700px){.slot{border-right:0;border-bottom:1px solid var(--lgray);padding-right:0}.slot:last-child{border-bottom:0}}

/* stack / problem */
.stack{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.tool{background:var(--surface);border:1px solid var(--lgray);border-radius:13px;padding:20px;min-width:0;display:flex;flex-direction:column;gap:7px}
.tool .lbl{font-size:.72rem;font-weight:700;letter-spacing:.11em;text-transform:uppercase;color:var(--mgray)}
.tool p{font-size:.9rem;color:var(--mgray)}
.tool strong{color:var(--text);font-weight:600;font-size:1rem}

/* add-ons */
.addons{display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));gap:20px}
.addon{background:var(--surface);border:1px solid var(--lgray);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:9px;min-width:0}
.addon .tag{align-self:flex-start;font-size:.68rem;font-weight:600;letter-spacing:.11em;text-transform:uppercase;padding:4px 10px;border-radius:99px}
.tag-live{background:color-mix(in srgb, var(--mint) 18%, transparent);color:var(--teal)}
.tag-soon{background:color-mix(in srgb, var(--amber) 18%, transparent);color:var(--amber)}
.addon p{font-size:.92rem;color:var(--mgray)}
.addon .cost{font-size:.88rem;font-weight:600;color:var(--text);margin-top:auto}

/* toggle */
.toggle{display:inline-flex;align-items:center;gap:4px;background:var(--cloud);border:1px solid var(--lgray);border-radius:99px;padding:4px}
.band-cloud .toggle{background:var(--surface)}
.toggle button{font-family:var(--sans);font-size:.88rem;font-weight:500;border:0;background:transparent;color:var(--mgray);padding:8px 16px;border-radius:99px;cursor:pointer}
.toggle button[aria-pressed="true"]{background:var(--teal);color:#fff}
.toggle button:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.saver{font-size:.8rem;font-weight:600;color:var(--mint);letter-spacing:.02em}

/* calculator */
.calc{background:var(--surface);border:1px solid var(--lgray);border-radius:16px;padding:26px 24px;display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:center;box-shadow:var(--shadow)}
@media (max-width:720px){.calc{grid-template-columns:1fr;gap:20px}}
.calc .ctl{min-width:0}
.calc label{display:block;font-size:.8rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--mgray);margin-bottom:12px}
input[type=range]{width:100%;accent-color:var(--teal)}
.calc .scale{display:flex;justify-content:space-between;font-size:.76rem;color:var(--mgray);margin-top:6px}
.calc .out{border-left:3px solid var(--mint);padding-left:18px;min-width:0}
@media (max-width:720px){.calc .out{border-left:0;border-top:3px solid var(--mint);padding-left:0;padding-top:16px}}
.calc .out .big{font-family:var(--serif);font-size:2.5rem;line-height:1.05;color:var(--text)}
.calc .out .sub{font-size:.88rem;color:var(--mgray);margin-top:4px}

/* tables */
.tablewrap{overflow-x:auto;border:1px solid var(--lgray);border-radius:14px;background:var(--surface)}
table{width:100%;border-collapse:collapse;font-size:.93rem;min-width:430px}
th,td{text-align:left;padding:13px 18px;border-bottom:1px solid var(--lgray)}
tbody tr:last-child td{border-bottom:0}
th{font-size:.72rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--mgray)}
td.yn{text-align:center;width:1%;white-space:nowrap}
td:first-child{color:var(--text);font-weight:500}
td{color:var(--mgray)}

/* trust / security */
.trust{display:grid;grid-template-columns:repeat(auto-fit,minmax(236px,1fr));gap:20px}
.tcard{background:var(--surface);border:1px solid var(--lgray);border-radius:14px;padding:22px;min-width:0;display:flex;flex-direction:column;gap:9px}
.tcard .ic{width:34px;height:34px;border-radius:9px;background:color-mix(in srgb, var(--teal) 14%, transparent);display:grid;place-items:center;flex:none}
.tcard p{font-size:.92rem;color:var(--mgray)}
.strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(198px,1fr));gap:18px}
.sitem{display:flex;gap:11px;align-items:flex-start;min-width:0}
.sitem svg{flex:none;margin-top:3px}
.sitem b{display:block;font-weight:600;font-size:.96rem}
.sitem span{font-size:.87rem;color:var(--mgray)}

/* faq */
.faq{display:flex;flex-direction:column;border-top:1px solid var(--lgray)}
details{border-bottom:1px solid var(--lgray)}
summary{cursor:pointer;padding:18px 0;font-weight:500;font-size:1rem;color:var(--text);list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--sans);font-size:1.3rem;color:var(--teal);flex:none;line-height:1}
details[open] summary::after{content:"\2013"}
details p{padding-bottom:18px;color:var(--mgray);font-size:.95rem;max-width:72ch}
summary:focus-visible{outline:2px solid var(--mint);outline-offset:3px}

/* forms */
.formgrid{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:start}
@media (max-width:860px){.formgrid{grid-template-columns:1fr;gap:26px}}
form.enq{background:var(--surface);border:1px solid var(--lgray);border-radius:16px;padding:26px 24px;display:flex;flex-direction:column;gap:17px;box-shadow:var(--shadow);min-width:0}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label{font-size:.79rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--mgray)}
.field .help{font-size:.82rem;color:var(--mgray)}
.field input,.field select,.field textarea{font-family:var(--sans);font-size:1rem;color:var(--text);background:var(--page);border:1px solid var(--lgray);border-radius:9px;padding:11px 13px;width:100%;min-width:0}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--teal);outline-offset:-1px;border-color:var(--teal)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:17px}
@media (max-width:520px){.two{grid-template-columns:1fr}}
.req{color:var(--amber)}
.done{background:color-mix(in srgb, var(--mint) 12%, transparent);border:1px solid var(--mint);border-radius:12px;padding:20px;display:flex;flex-direction:column;gap:7px}
.done h3{font-size:1.1rem}
.done p{font-size:.93rem;color:var(--mgray)}
.aside{display:flex;flex-direction:column;gap:22px;min-width:0}
.ablock{display:flex;flex-direction:column;gap:7px;min-width:0}
.ablock h3{font-size:1.02rem}
.ablock p,.ablock li{font-size:.92rem;color:var(--mgray)}
.ablock ul{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:5px}
.contactline{font-size:1rem;font-weight:500;color:var(--text);word-break:break-word}

/* cta + footer */
.cta{background:var(--hero);color:#fff;position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;width:560px;height:560px;border-radius:50%;bottom:-340px;right:-120px;background:radial-gradient(circle,rgba(2,195,154,.22),transparent 70%)}
.cta .wrap{position:relative;display:flex;flex-direction:column;gap:14px;align-items:flex-start;padding-block:clamp(48px,6vw,76px)}
.cta h2{color:#fff}
.cta h2 em{font-family:var(--serif);font-style:italic;color:var(--mint)}
.cta p{color:rgba(255,255,255,.8);max-width:52ch}
footer{background:var(--footer);color:rgba(255,255,255,.62);font-size:.88rem}
footer .wrap{padding-block:40px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}
@media (max-width:700px){footer .wrap{grid-template-columns:1fr 1fr}}
footer .brand{color:#fff}
footer h4{font-family:var(--sans);font-size:.72rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.45);margin:0 0 12px}
footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
footer a{color:rgba(255,255,255,.72);text-decoration:none}
footer a:hover{color:var(--mint)}
.fcol p{margin-top:12px;max-width:34ch;color:rgba(255,255,255,.52)}
.legal{border-top:1px solid rgba(255,255,255,.1)}
.legal .wrap{padding-block:18px;display:flex;flex-wrap:wrap;gap:8px 20px;font-size:.8rem;color:rgba(255,255,255,.42)}

@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}.btn:hover{transform:none}}