/* iAlarmClock — shared stylesheet */
:root{
  --bg:#0b0d12;
  --surface:#151821;
  --surface-2:#1f2330;
  --border:rgba(255,255,255,.08);
  --text:#f5f6fa;
  --muted:#9aa0b4;
  --accent:#ff9f0a;
  --accent-2:#ffb340;
  --green:#30d158;
  --red:#ff453a;
  --blue:#0a84ff;
  --radius:14px;
  --radius-lg:20px;
  --maxw:1100px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
@media (prefers-color-scheme: light){
  :root{
    --bg:#fafbfd;
    --surface:#ffffff;
    --surface-2:#f1f3f8;
    --border:rgba(0,0,0,.08);
    --text:#10131a;
    --muted:#5b6173;
    --shadow:0 10px 30px rgba(15,20,40,.08);
  }
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img,svg{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
button{font-family:inherit;cursor:pointer}

/* Layout */
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}

/* Header / Nav */
.site-header{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--bg) 85%,transparent);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--border);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;max-width:var(--maxw);margin:0 auto;gap:16px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--text)}
.brand:hover{text-decoration:none}
.brand-mark{font-size:22px}
.nav-links{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.nav-links a{
  color:var(--muted);font-weight:500;font-size:15px;
  padding:8px 12px;border-radius:8px;transition:background .15s,color .15s;
}
.nav-links a:hover{background:var(--surface);color:var(--text);text-decoration:none}
.nav-links a.active{color:var(--accent)}
.nav-toggle{display:none;background:none;border:0;color:var(--text);padding:8px}
@media (max-width:720px){
  .nav-toggle{display:block}
  .nav-links{
    display:none;position:absolute;top:60px;right:12px;
    background:var(--surface);border:1px solid var(--border);
    border-radius:var(--radius);padding:8px;flex-direction:column;align-items:stretch;
    box-shadow:var(--shadow);min-width:180px;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:10px 14px}
}

/* Hero */
.hero{
  padding:48px 0 32px;text-align:center;
}
.hero h1{
  font-size:clamp(32px,5vw,52px);font-weight:800;letter-spacing:-.02em;
  line-height:1.1;margin-bottom:14px;
}
.hero p.lead{
  color:var(--muted);font-size:clamp(16px,2vw,19px);
  max-width:640px;margin:0 auto 28px;
}

/* Live clock */
.live-clock{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:32px 24px;margin:0 auto 28px;
  max-width:560px;box-shadow:var(--shadow);
}
.live-clock .time{
  font-family:var(--mono);font-size:clamp(46px,9vw,84px);
  font-weight:600;letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;line-height:1;
}
.live-clock .meridiem{font-size:.45em;color:var(--muted);margin-left:8px;font-weight:500}
.live-clock .date{margin-top:10px;color:var(--muted);font-size:16px}
.live-clock .tz{margin-top:4px;color:var(--muted);font-size:13px}

/* Tool grid */
.tool-grid{
  display:grid;gap:16px;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  margin:0 0 56px;
}
.tool-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:22px;color:var(--text);
  transition:transform .15s,border-color .15s,background .15s;
  display:block;
}
.tool-card:hover{transform:translateY(-2px);border-color:var(--accent);text-decoration:none}
.tool-card .icon{font-size:30px;margin-bottom:10px}
.tool-card h3{font-size:18px;margin-bottom:4px;font-weight:700}
.tool-card p{color:var(--muted);font-size:14px}

/* Sections */
section.block{padding:40px 0}
section.block h2{
  font-size:clamp(24px,3.4vw,32px);font-weight:700;margin-bottom:18px;
  letter-spacing:-.01em;
}
section.block h3{font-size:20px;margin:24px 0 8px;font-weight:700}
section.block p{margin-bottom:14px;color:var(--text)}
section.block ul,section.block ol{margin:0 0 14px 22px;color:var(--text)}
section.block li{margin-bottom:6px}

.feature-grid{
  display:grid;gap:18px;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
}
.feature{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;
}
.feature .icon{font-size:24px;margin-bottom:8px}
.feature h3{font-size:16px;margin-bottom:6px;font-weight:700}
.feature p{color:var(--muted);font-size:14px;margin:0}

/* FAQ (details/summary) */
.faq details{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:0;margin-bottom:10px;overflow:hidden;
}
.faq summary{
  cursor:pointer;padding:18px 20px;font-weight:600;
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--muted);transition:transform .2s}
.faq details[open] summary::after{content:"−"}
.faq details > div{padding:0 20px 18px;color:var(--muted)}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:10px;border:1px solid transparent;
  font-weight:600;font-size:15px;transition:transform .1s,background .15s,border-color .15s;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:#1a1200}
.btn-primary:hover{background:var(--accent-2)}
.btn-secondary{background:var(--surface);color:var(--text);border-color:var(--border)}
.btn-secondary:hover{background:var(--surface-2)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}
.btn-lg{padding:16px 28px;font-size:17px;border-radius:12px}

/* Tool surfaces */
.tool-surface{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:32px;
  margin:0 auto;max-width:640px;box-shadow:var(--shadow);
}
.tool-display{
  text-align:center;font-family:var(--mono);
  font-size:clamp(48px,10vw,96px);font-weight:600;
  letter-spacing:-.03em;font-variant-numeric:tabular-nums;
  line-height:1;margin:8px 0 24px;
}
.tool-display .ms{color:var(--muted);font-size:.55em}
.tool-controls{
  display:flex;gap:12px;justify-content:center;flex-wrap:wrap;
}
.tool-controls .btn{min-width:120px}

/* Lists (laps, alarms, etc.) */
.list{list-style:none;padding:0;margin:24px 0 0}
.list li{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 0;border-bottom:1px solid var(--border);
}
.list li:last-child{border-bottom:0}
.list .left{display:flex;flex-direction:column;gap:2px}
.list .label{color:var(--muted);font-size:13px}
.list .value{font-family:var(--mono);font-size:18px;font-variant-numeric:tabular-nums}

/* Toggle */
.toggle{
  width:48px;height:28px;background:var(--surface-2);border-radius:14px;
  position:relative;cursor:pointer;transition:background .2s;border:0;padding:0;flex-shrink:0;
}
.toggle::after{
  content:"";position:absolute;top:2px;left:2px;width:24px;height:24px;
  border-radius:50%;background:#fff;transition:transform .2s;box-shadow:0 1px 3px rgba(0,0,0,.3);
}
.toggle.on{background:var(--green)}
.toggle.on::after{transform:translateX(20px)}

/* Forms */
.form-row{margin-bottom:14px;display:flex;flex-direction:column;gap:6px}
.form-row label{font-size:14px;color:var(--muted);font-weight:500}
.form-row input,.form-row textarea,.form-row select{
  background:var(--bg);color:var(--text);border:1px solid var(--border);
  border-radius:10px;padding:12px 14px;font-size:16px;font-family:inherit;
  outline:0;transition:border-color .15s;
}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{border-color:var(--accent)}
.form-row textarea{min-height:120px;resize:vertical}

/* Tables (city comparison etc.) */
.table-wrap{overflow-x:auto;margin:16px 0;border:1px solid var(--border);border-radius:var(--radius)}
table.data{width:100%;border-collapse:collapse;font-size:15px}
table.data th,table.data td{
  padding:12px 14px;text-align:left;border-bottom:1px solid var(--border);
}
table.data th{background:var(--surface);font-weight:600;color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.04em}
table.data tr:last-child td{border-bottom:0}
table.data td.time{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* World clock grid (homepage + hub) */
.city-grid{
  display:grid;gap:14px;
  grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
}
.city-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:18px;color:var(--text);transition:border-color .15s;
  display:block;
}
.city-card:hover{border-color:var(--accent);text-decoration:none}
.city-card .city-name{font-size:16px;font-weight:600;margin-bottom:4px}
.city-card .city-tz{color:var(--muted);font-size:12px;margin-bottom:8px}
.city-card .city-time{font-family:var(--mono);font-size:24px;font-variant-numeric:tabular-nums;font-weight:600}
.city-card .city-date{color:var(--muted);font-size:12px;margin-top:2px}

/* Article (blog) */
article.post{max-width:720px;margin:0 auto;padding:24px 0 60px}
article.post header.post-header{margin-bottom:28px;text-align:center}
article.post h1{font-size:clamp(28px,4vw,42px);font-weight:800;letter-spacing:-.02em;line-height:1.15;margin-bottom:10px}
article.post .meta{color:var(--muted);font-size:14px}
article.post p{margin-bottom:16px}
article.post h2{font-size:24px;margin:32px 0 10px;font-weight:700}
article.post h3{font-size:19px;margin:24px 0 8px;font-weight:700}
article.post ul,article.post ol{margin:0 0 16px 24px}
article.post blockquote{
  border-left:3px solid var(--accent);padding:6px 16px;color:var(--muted);
  margin:18px 0;background:var(--surface);border-radius:0 8px 8px 0;
}

/* Footer */
.site-footer{
  border-top:1px solid var(--border);margin-top:60px;padding:32px 0;
  color:var(--muted);font-size:14px;
}
.footer-grid{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:flex-start}
.footer-cols{display:flex;flex-wrap:wrap;gap:36px}
.footer-col h4{color:var(--text);font-size:13px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px}
.footer-col a{display:block;color:var(--muted);padding:3px 0}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{margin-top:24px;padding-top:18px;border-top:1px solid var(--border);text-align:center}

/* Utility */
.text-center{text-align:center}
.muted{color:var(--muted)}
.mb-0{margin-bottom:0}
.mt-lg{margin-top:32px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Breadcrumbs */
.crumbs{font-size:13px;color:var(--muted);margin:18px 0 6px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--accent)}
.crumbs span{margin:0 6px;opacity:.5}

/* Print */
@media print{
  .site-header,.site-footer,.tool-controls{display:none}
  body{background:#fff;color:#000}
}

/* Reduced motion */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}