/* ==========================================================================
   Clock & Time Tools — Shared Stylesheet
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600;700&family=Poppins:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;700&display=swap');

:root{
  /* base tokens (overridden per time-of-day theme below) */
  --grad-1:#1e2a5e; --grad-2:#3d2c6e; --grad-3:#0f1535;
  --accent:#8ea2ff; --accent-soft:rgba(142,162,255,.18);
  --glass-bg:rgba(255,255,255,.08); --glass-border:rgba(255,255,255,.16);
  --text-1:#f4f5fb; --text-2:rgba(244,245,251,.68);
  --shadow: 0 20px 60px rgba(0,0,0,.35);
  --radius:22px;
  --font-display:'Poppins',sans-serif;
  --font-bn:'Hind Siliguri',sans-serif;
  --font-mono:'JetBrains Mono',monospace;
}

[data-light="true"]{
  --text-1:#1b1d29; --text-2:rgba(27,29,41,.62);
  --glass-bg:rgba(255,255,255,.55); --glass-border:rgba(255,255,255,.9);
  --shadow: 0 20px 50px rgba(30,20,60,.12);
}

/* ---------- time-of-day themes ---------- */
body.theme-dawn{ --grad-1:#2b2350; --grad-2:#a45b7a; --grad-3:#f2a06b; --accent:#ffb98a; }
body.theme-morning{ --grad-1:#1c6bb0; --grad-2:#3fa9e0; --grad-3:#ffe29a; --accent:#ffd479; }
body.theme-noon{ --grad-1:#1487c9; --grad-2:#4fc3f7; --grad-3:#e9f7ff; --accent:#4fc3f7; }
body.theme-afternoon{ --grad-1:#a5450f; --grad-2:#e07a2c; --grad-3:#ffcf85; --accent:#ff9d4d; }
body.theme-evening{ --grad-1:#3b1a5c; --grad-2:#9b3f8f; --grad-3:#ff8fb1; --accent:#e281c9; }
body.theme-night{ --grad-1:#050818; --grad-2:#141c3d; --grad-3:#241a4a; --accent:#8ea2ff; }

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-bn);
  color:var(--text-1);
  min-height:100vh;
  background:linear-gradient(135deg,var(--grad-1),var(--grad-2) 55%,var(--grad-3));
  background-attachment:fixed;
  transition:background 1.2s ease, color .4s ease;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed; inset:0;
  background:radial-gradient(circle at 20% 15%, rgba(255,255,255,.10), transparent 40%),
             radial-gradient(circle at 85% 80%, rgba(255,255,255,.08), transparent 45%);
  pointer-events:none; z-index:0;
}
[lang-mode="en"] body, .lang-en{font-family:var(--font-display);}

a{color:inherit; text-decoration:none;}
button{font-family:inherit; cursor:pointer;}
.hidden{display:none !important;}

/* ---------- layout ---------- */
.wrap{max-width:1180px; margin:0 auto; padding:0 20px;}
header.site-header{
  position:sticky; top:0; z-index:50;
  backdrop-filter:blur(18px) saturate(140%);
  background:var(--glass-bg); border-bottom:1px solid var(--glass-border);
}
.header-inner{display:flex; align-items:center; justify-content:space-between; padding:14px 20px; max-width:1180px; margin:0 auto;}
.brand{display:flex; align-items:center; gap:10px; font-weight:700; font-size:1.15rem;}
.brand img{width:34px; height:34px; border-radius:10px; object-fit:cover;}
nav.main-menu{display:flex; gap:18px; align-items:center;}
nav.main-menu a{font-size:.92rem; opacity:.85; padding:6px 4px;}
nav.main-menu a:hover{opacity:1;}
.header-actions{display:flex; align-items:center; gap:8px;}
.icon-btn{
  width:38px; height:38px; border-radius:50%; border:1px solid var(--glass-border);
  background:var(--glass-bg); color:var(--text-1); display:flex; align-items:center; justify-content:center;
  font-size:1rem; transition:transform .2s ease, background .2s ease;
}
.icon-btn:hover{transform:translateY(-2px); background:var(--accent-soft);}
.lang-btn{font-weight:700; font-size:.78rem; letter-spacing:.03em;}

.menu-toggle{display:none;}

/* ---------- announcement banner ---------- */
.announce{
  background:var(--accent); color:#161320; text-align:center;
  font-size:.86rem; font-weight:600; padding:9px 16px;
}

/* ---------- glass card ---------- */
.glass{
  background:var(--glass-bg); border:1px solid var(--glass-border);
  border-radius:var(--radius); backdrop-filter:blur(20px) saturate(150%);
  box-shadow:var(--shadow);
}

/* ---------- hero / live clock ---------- */
.hero{position:relative; z-index:1; padding:40px 20px 20px; text-align:center;}
.period-chip{
  display:inline-flex; align-items:center; gap:8px; padding:7px 16px; border-radius:999px;
  font-size:.85rem; font-weight:600; margin-bottom:18px;
}
.clock-card{padding:38px 24px 30px; max-width:640px; margin:0 auto;}
.digital-clock{
  font-family:var(--font-mono); font-weight:700; letter-spacing:2px;
  font-size:clamp(2.4rem, 9vw, 4.6rem); line-height:1; color:var(--text-1);
}
.digital-clock .ms{font-size:.4em; opacity:.55; letter-spacing:1px;}
.date-line{margin-top:10px; font-size:1rem; color:var(--text-2); font-weight:500;}
.hero-controls{display:flex; justify-content:center; gap:10px; margin-top:18px; flex-wrap:wrap;}
.pill-btn{
  padding:8px 16px; border-radius:999px; border:1px solid var(--glass-border);
  background:var(--glass-bg); font-size:.82rem; font-weight:600; color:var(--text-1);
}
.pill-btn.active{background:var(--accent); color:#14121d;}

/* analog clock */
.analog-wrap{display:flex; justify-content:center; margin-top:26px;}
.analog{width:180px; height:180px; border-radius:50%; border:3px solid var(--glass-border); position:relative; background:var(--glass-bg);}
.analog .tick{position:absolute; width:2px; height:8px; background:var(--text-2); left:50%; top:4px; transform-origin:1px 86px;}
.hand{position:absolute; left:50%; bottom:50%; transform-origin:bottom; border-radius:6px;}
.hand.hour{width:5px; height:46px; background:var(--text-1); margin-left:-2.5px;}
.hand.min{width:3.5px; height:64px; background:var(--text-1); margin-left:-1.75px; opacity:.85;}
.hand.sec{width:2px; height:72px; background:var(--accent); margin-left:-1px;}
.analog .dot{position:absolute; width:10px; height:10px; background:var(--accent); border-radius:50%; left:50%; top:50%; transform:translate(-50%,-50%);}

/* ---------- section shell ---------- */
section.section{padding:46px 20px; position:relative; z-index:1;}
.section-head{max-width:1180px; margin:0 auto 22px;}
.section-head h2{font-family:var(--font-display); font-size:1.5rem; font-weight:700;}
.section-head p{color:var(--text-2); font-size:.92rem; margin-top:4px;}
[lang-mode="en"] .section-head h2, .lang-en .section-head h2{font-family:var(--font-display);}

/* ---------- world clock grid ---------- */
.grid{max-width:1180px; margin:0 auto; display:grid; gap:16px;}
.grid.cities{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));}
.city-card{padding:18px; text-align:center;}
.city-card .city-name{font-weight:700; font-size:.98rem;}
.city-card .city-time{font-family:var(--font-mono); font-size:1.5rem; margin-top:8px; font-weight:700;}
.city-card .city-date{font-size:.76rem; color:var(--text-2); margin-top:4px;}

/* ---------- tools ---------- */
.tool-tabs{display:flex; gap:8px; flex-wrap:wrap; max-width:1180px; margin:0 auto 20px;}
.tool-tab{padding:9px 16px; border-radius:12px; font-size:.86rem; font-weight:600; border:1px solid var(--glass-border); background:var(--glass-bg);}
.tool-tab.active{background:var(--accent); color:#14121d;}
.tool-panel{max-width:760px; margin:0 auto; padding:26px; display:none;}
.tool-panel.active{display:block;}
.tool-panel h3{font-family:var(--font-display); margin-bottom:16px; font-size:1.1rem;}
.field-row{display:flex; gap:10px; flex-wrap:wrap; margin-bottom:14px;}
.field{flex:1; min-width:140px;}
.field label{display:block; font-size:.78rem; color:var(--text-2); margin-bottom:6px; font-weight:600;}
.field input, .field select{
  width:100%; padding:10px 12px; border-radius:10px; border:1px solid var(--glass-border);
  background:rgba(255,255,255,.06); color:var(--text-1); font-size:.92rem;
}
[data-light="true"] .field input, [data-light="true"] .field select{background:rgba(255,255,255,.7);}
.action-btn{
  padding:11px 22px; border-radius:12px; border:none; background:var(--accent); color:#14121d;
  font-weight:700; font-size:.9rem;
}
.action-btn.ghost{background:transparent; border:1px solid var(--glass-border); color:var(--text-1);}
.result-box{margin-top:16px; padding:16px; border-radius:14px; background:var(--accent-soft); font-weight:600;}
.stopwatch-display, .timer-display{
  font-family:var(--font-mono); font-size:clamp(2.2rem,8vw,3.2rem); text-align:center; font-weight:700; margin:14px 0;
}
.lap-list{max-height:180px; overflow-y:auto; font-family:var(--font-mono); font-size:.85rem;}
.lap-list div{display:flex; justify-content:space-between; padding:6px 0; border-bottom:1px solid var(--glass-border);}

/* ---------- footer ---------- */
footer.site-footer{padding:34px 20px 26px; text-align:center; position:relative; z-index:1;}
.social-row{display:flex; justify-content:center; gap:14px; margin:14px 0;}
.footer-note{font-size:.8rem; color:var(--text-2);}

/* ---------- responsive ---------- */
@media (max-width: 780px){
  nav.main-menu{position:fixed; top:64px; left:0; right:0; flex-direction:column; align-items:flex-start;
    background:var(--glass-bg); backdrop-filter:blur(20px); padding:16px 22px; border-bottom:1px solid var(--glass-border);
    display:none;}
  nav.main-menu.open{display:flex;}
  .menu-toggle{display:flex;}
  .analog{width:140px; height:140px;}
}
@media (min-width: 1024px){
  .clock-card{padding:56px 40px 44px;}
  .grid.cities{grid-template-columns:repeat(auto-fill,minmax(210px,1fr));}
}

/* ---------- loading screen ---------- */
#loadingScreen{
  position:fixed; inset:0; z-index:9999;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:18px;
  background:linear-gradient(135deg,#0f1535,#241a4a 60%,#050818);
  transition:opacity .5s ease, visibility .5s ease;
}
#loadingScreen.fade-out{opacity:0; visibility:hidden; pointer-events:none;}
.loader-ring{
  width:64px; height:64px; border-radius:50%;
  border:4px solid rgba(255,255,255,.15); border-top-color:#8ea2ff;
  animation:loaderSpin 1s linear infinite;
}
@keyframes loaderSpin{ to{ transform:rotate(360deg); } }
.loader-text{text-align:center; color:#f4f5fb; font-family:'Poppins',sans-serif;}
.loader-text span{font-family:'JetBrains Mono',monospace; font-size:1.4rem; font-weight:700; letter-spacing:2px;}
.loader-text p{margin-top:6px; font-size:.85rem; opacity:.7;}

/* fade transition for theme change */
.fade-swap{animation:fadeSwap 1s ease;}
@keyframes fadeSwap{from{opacity:.2} to{opacity:1}}

/* reduced motion */
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important; transition-duration:.001ms !important;}
}