/* ============================================================
   eSIM Compass — global travel eSIM comparison site
   Static, framework-free. Light theme, responsive.
   Design system per Refactoring UI:
   - full shade ramps (grey/blue/teal/amber/red/green), no ad-hoc hex
   - spacing scale: 4-8-12-16-24-32-48-64-96
   - two text weights (400 / 700)
   - 2-level shadow system; static cards use borders, not shadows
   ============================================================ */
:root{
  /* greys (slate ramp, blue-tinted to match brand) */
  --grey-50:#f8fafc; --grey-100:#f1f5f9; --grey-200:#e2e8f0; --grey-300:#cbd5e1;
  --grey-400:#94a3b8; --grey-500:#64748b; --grey-600:#475569; --grey-700:#334155;
  --grey-800:#1e293b; --grey-900:#0f172a;
  /* primary blue ramp */
  --blue-50:#eef3fb; --blue-100:#dbeafe; --blue-200:#bfdbfe; --blue-300:#93c5fd;
  --blue-400:#60a5fa; --blue-500:#0b5fff; --blue-600:#0a4fd4; --blue-700:#083a8c; --blue-900:#0b3fa0;
  /* teal ramp */
  --teal-100:#ccf2ec; --teal-400:#00b8a9; --teal-500:#00857a; --teal-600:#06665c;
  /* amber ramp */
  --amber-100:#fff4dc; --amber-300:#ffd166; --amber-500:#ffb703; --amber-600:#e8930c; --amber-700:#8a5c00;
  /* red / green ramps (semantic) */
  --red-100:#fdeaea; --red-500:#dc2626; --red-700:#b3261e;
  --green-100:#e4f6ec; --green-500:#0f9d58; --green-700:#0c7a43;
  /* glass (translucency over dark gradients — deliberate, not shade-creation) */
  --glass:rgba(255,255,255,.08); --glass-strong:rgba(255,255,255,.14); --glass-border:rgba(255,255,255,.22);

  /* mapped roles */
  --brand:var(--blue-500);
  --brand-2:var(--teal-400);
  --ink:var(--grey-900);
  --muted:var(--grey-500);
  --muted-2:var(--grey-700);
  --bg:var(--grey-50);
  --surface:#ffffff;
  --line:var(--grey-200);
  --gold:var(--amber-500);
  --ok:var(--green-500);
  --radius:16px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06);
  --shadow:0 8px 24px -8px rgba(15,23,42,.16);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Inter","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
[id]{scroll-margin-top:84px}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{max-width:1140px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--ink);letter-spacing:-.02em}
.logo:hover{text-decoration:none}
.logo-mark{width:34px;height:34px;flex:none}
.logo span b{color:var(--brand)}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{padding:8px 12px;border-radius:10px;color:var(--ink);font-weight:600;font-size:14.5px}
.nav a:hover{background:var(--blue-50);text-decoration:none;color:var(--brand)}
.nav a.active{color:var(--brand);background:var(--blue-50)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:15px;border-radius:12px;padding:12px 24px;cursor:pointer;border:0;transition:.18s;text-align:center}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,var(--blue-500) 0%,var(--blue-400) 100%);color:#fff;box-shadow:0 8px 20px -8px rgba(11,95,255,.55)}
.btn-primary:hover{box-shadow:0 12px 26px -8px rgba(11,95,255,.6)}
.btn-ghost{background:var(--surface);color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{padding:8px 16px;font-size:13.5px;border-radius:10px}
.btn-cta{background:linear-gradient(135deg,var(--teal-400),var(--teal-500));color:#fff;box-shadow:0 8px 18px -8px rgba(0,138,127,.55)}
.burger{display:none;margin-left:auto;background:none;border:0;cursor:pointer;padding:8px}
.burger svg{width:26px;height:26px;stroke:var(--ink)}

/* ---------- hero ---------- */
.hero{background:linear-gradient(135deg,#071a3d 0%,var(--blue-900) 55%,#0e7f8f 100%);color:#fff;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 80% 20%,rgba(0,184,169,.25),transparent 45%),radial-gradient(circle at 15% 85%,rgba(255,183,3,.12),transparent 40%);pointer-events:none}
.hero-in{position:relative;padding:72px 0 64px;max-width:780px}
.kicker{display:inline-flex;align-items:center;gap:8px;background:var(--glass);border:1px solid var(--glass-border);color:#dceaff;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:6px 14px;border-radius:999px;margin-bottom:20px}
.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.12;letter-spacing:-.03em;font-weight:700;margin-bottom:16px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#ffd166,#ffb703);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:clamp(16px,2vw,19px);color:#c9d9f5;max-width:620px;margin-bottom:32px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero .btn-ghost{background:var(--glass);border-color:var(--glass-border);color:#fff}
.hero .btn-ghost:hover{border-color:#fff;background:var(--glass-strong)}
.metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:48px}
.metric{background:var(--glass);border:1px solid var(--glass-border);border-radius:14px;padding:16px}
.metric b{display:block;font-size:22px;letter-spacing:-.02em}
.metric span{font-size:12.5px;color:#b9cbec}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section.alt{background:var(--surface)}
.section-head{max-width:680px;margin-bottom:32px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(24px,3.4vw,32px);letter-spacing:-.025em;line-height:1.25;margin-bottom:10px;font-weight:700}
.section-head p{color:var(--muted);font-size:16.5px}
.eyebrow{color:var(--brand);font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase;display:block;margin-bottom:8px}

/* ---------- grids / cards ---------- */
.grid{display:grid;gap:24px}
.cols-2{grid-template-columns:repeat(2,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card h2{font-size:18px;margin-bottom:8px;letter-spacing:-.01em}
.card h3{font-size:18px;margin-bottom:8px;letter-spacing:-.01em}
.card p{color:var(--muted);font-size:14.5px}
.grid a.card{color:inherit}
.grid a.card:hover{text-decoration:none}
.card .ico{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--blue-50);margin-bottom:16px;font-size:22px}
.ico.teal{background:var(--teal-100)}
.ico.gold{background:var(--amber-100)}

/* ---------- steps ---------- */
.steps{counter-reset:step}
.step{position:relative;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.step::before{counter-increment:step;content:"0" counter(step);font-size:13px;font-weight:700;color:var(--brand);background:var(--blue-50);border-radius:8px;padding:4px 10px;display:inline-block;margin-bottom:16px}
.step h3{font-size:18px;margin-bottom:6px}
.step p{color:var(--muted);font-size:14.5px}

/* ---------- provider cards ---------- */
.prov-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prov-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:16px;position:relative;transition:.2s}
.prov-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.prov-top{display:flex;align-items:center;gap:12px}
.prov-logo{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;color:#fff;flex:none}
.prov-name{font-weight:700;font-size:17px;letter-spacing:-.01em}
.prov-sub{font-size:12.5px;color:var(--muted)}
.badge{position:absolute;top:-11px;left:20px;font-size:11.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:4px 12px;border-radius:999px;color:#fff;background:var(--brand)}
.badge.value{background:var(--teal-400)}
.badge.unl{background:#8a4fff}
.badge.gold{background:var(--amber-600)}
.prov-meta{display:grid;grid-template-columns:1fr 1fr;gap:8px;font-size:13.5px}
.prov-meta div{background:var(--grey-100);border-radius:10px;padding:8px 12px}
.prov-meta b{display:block;font-size:15px;letter-spacing:-.01em}
.prov-meta span{color:var(--muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;font-weight:700}
.prov-note{font-size:13.5px;color:var(--muted)}
.stars{color:var(--gold);font-size:14px;letter-spacing:2px}
.prov-actions{margin-top:auto;display:flex;gap:12px}
.prov-actions .btn{flex:1}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table.cmp{width:100%;border-collapse:collapse;font-size:14.5px;min-width:760px}
.cmp th,.cmp td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
.cmp thead th{background:var(--grey-100);font-size:12.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:700;white-space:nowrap}
.cmp tbody tr:hover{background:var(--grey-50)}
.cmp td b{white-space:nowrap}
.tag{display:inline-block;font-size:11.5px;font-weight:700;padding:3px 10px;border-radius:999px;letter-spacing:.03em}
.tag.ok{background:var(--green-100);color:var(--green-700)}
.tag.mid{background:var(--amber-100);color:var(--amber-700)}
.tag.no{background:var(--red-100);color:var(--red-700)}
.tag.brand{background:var(--blue-100);color:var(--blue-700)}

/* ---------- filter chips ---------- */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.chip{border:1.5px solid var(--line);background:var(--surface);border-radius:999px;padding:7px 16px;font-size:13.5px;font-weight:700;color:var(--muted);cursor:pointer;transition:.15s;font-family:var(--font)}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- calculator ---------- */
.calc{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;background:linear-gradient(135deg,#0a2547,var(--blue-900));border-radius:22px;padding:32px;color:#fff}
.calc h3{font-size:20px;margin-bottom:4px}
.calc .hint{color:#a9c0ea;font-size:13.5px;margin-bottom:24px}
.calc-field{margin-bottom:24px}
.calc-field label{display:block;font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:#9fb8e6;margin-bottom:8px}
.calc-field select,.calc-field input{width:100%;padding:12px 14px;border-radius:11px;border:1.5px solid var(--glass-border);background:var(--glass);color:#fff;font-size:15px;font-family:var(--font);appearance:none}
.calc-field select option{color:var(--ink)}
.calc-field input[type=range]{padding:0;accent-color:var(--amber-500);height:6px;border:0;background:rgba(255,255,255,.25)}
.range-val{font-weight:700;color:var(--amber-300)}
.calc-out{background:rgba(255,255,255,.06);border:1px solid var(--glass-border);border-radius:16px;padding:24px;display:flex;flex-direction:column;gap:16px}
.calc-est{font-size:13px;color:#a9c0ea}
.calc-item{display:flex;align-items:center;gap:12px;background:var(--glass);border-radius:12px;padding:12px 14px}
.calc-item .pl{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;color:#fff;flex:none}
.calc-item .nm{font-weight:700;font-size:14.5px}
.calc-item .pr{margin-left:auto;font-weight:700;color:var(--amber-300);white-space:nowrap}
.calc-item .sb{font-size:11.5px;color:#9fb8e6}
.calc-note{font-size:11.5px;color:#8fa8d8}
.calc-item .btn{margin-left:8px}

/* ---------- destinations ---------- */
.dest-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.dest-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:6px;transition:.18s;color:inherit}
.dest-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--blue-200);text-decoration:none}
.cc{width:44px;height:30px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;color:#fff;letter-spacing:.05em;background:linear-gradient(135deg,#33415c,var(--blue-900))}
.dest-card b{font-size:15.5px;color:var(--ink);letter-spacing:-.01em}
.dest-card span{font-size:12.5px;color:var(--muted)}
.dest-card .from{margin-top:auto;font-weight:700;color:var(--brand);font-size:13.5px}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;padding:16px 24px;font-weight:700;font-size:15.5px;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;font-weight:400;color:var(--brand);transition:.2s;flex:none}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{padding:0 24px 20px;color:var(--muted);font-size:14.5px}
.faq .a p+p{margin-top:10px}

/* ---------- cta band ---------- */
.cta-band{background:linear-gradient(120deg,var(--blue-500),var(--teal-400));border-radius:22px;padding:48px 40px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,3vw,30px);letter-spacing:-.02em;margin-bottom:6px}
.cta-band p{color:#e6f4ff;max-width:560px}
.cta-band .btn{background:#fff;color:var(--brand)}

/* ---------- article/prose ---------- */
.breadcrumbs{font-size:13px;color:var(--muted);padding:16px 0 0}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--brand)}
.page-hero{padding:40px 0 32px}
.page-hero h1{font-size:clamp(28px,4vw,40px);letter-spacing:-.03em;line-height:1.15;margin-bottom:12px;font-weight:700}
.page-hero p.sub{color:var(--muted);font-size:17px;max-width:720px}
.prose{max-width:780px}
.prose h2{font-size:24px;letter-spacing:-.02em;margin:40px 0 12px}
.prose h3{font-size:18.5px;margin:24px 0 8px}
.prose p{color:var(--grey-700);margin-bottom:16px}
.prose ul,.prose ol{margin:0 0 16px 22px;color:var(--grey-700)}
.prose li{margin-bottom:6px}
.prose table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14.5px}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.prose th{background:var(--grey-100)}
.prose .callout{background:var(--blue-50);border-left:4px solid var(--brand);border-radius:0 12px 12px 0;padding:16px;margin:16px 0;font-size:14.5px;color:var(--grey-700)}
.prose .callout b{color:var(--ink)}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 24px;margin:24px 0}
.toc b{display:block;margin-bottom:8px;font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.toc ol{margin-left:20px;font-size:14.5px}
.toc a{color:var(--brand)}

/* ---------- footer ---------- */
.site-footer{background:#0a1526;color:#9db0cc;margin-top:0;padding:48px 0 24px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.foot-grid h4{color:#fff;font-size:14px;margin-bottom:12px;letter-spacing:.02em}
.foot-grid a{display:block;color:#9db0cc;margin-bottom:8px}
.foot-grid a:hover{color:#fff;text-decoration:none}
.foot-brand p{max-width:300px;font-size:13.5px;margin-top:12px}
.foot-disclosure{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;font-size:12.5px;color:#7688a5;line-height:1.6}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:16px;font-size:12.5px;color:#7688a5}

/* ---------- misc ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}
.disclose-note{font-size:12.5px;color:var(--muted);background:var(--grey-100);border-radius:10px;padding:10px 14px;display:inline-block}
.divider{border:0;border-top:1px solid var(--line);margin:32px 0}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}
ul.check{list-style:none;margin:0 0 0 2px}
ul.check li{padding-left:26px;position:relative;margin-bottom:8px;color:var(--grey-700);font-size:14.5px}
ul.check li::before{content:"✓";position:absolute;left:0;top:0;color:var(--ok);font-weight:700}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .prov-grid{grid-template-columns:repeat(2,1fr)}
  .cols-4,.dest-grid{grid-template-columns:repeat(2,1fr)}
  .cols-3{grid-template-columns:repeat(2,1fr)}
  .metric-row{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .calc{grid-template-columns:1fr}
}
@media(max-width:680px){
  .nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--surface);flex-direction:column;padding:16px 20px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .burger{display:block}
  .header-cta{display:none}
  .prov-grid,.cols-2,.cols-3,.cols-4,.dest-grid{grid-template-columns:1fr}
  .metric-row{grid-template-columns:1fr 1fr}
  .section{padding:48px 0}
  .hero-in{padding:56px 0 48px}
  .cta-band{padding:32px 24px}
  .two-col{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}