:root{
  --page:#eef1ff;
  --card:#dfe3ff;
  --panel:#f8f9ff;
  --white:#ffffff;
  --text:#252b45;
  --muted:#68708a;
  --purple:#5d57c8;
  --purple-dark:#4f49bb;
  --cyan:#1ab8eb;
  --border:rgba(65,72,120,.14);
  --shadow:0 20px 55px rgba(38,39,95,.18);
}

html[data-theme="dark"]{
  --page:#161a32;
  --card:#242947;
  --panel:#1e233e;
  --white:#2b3152;
  --text:#f5f6ff;
  --muted:#b3b9d1;
  --border:rgba(255,255,255,.1);
  --shadow:0 20px 55px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Nunito',system-ui,sans-serif;
  color:var(--text);
  background:linear-gradient(135deg,#6755cb 0%,#6572bb 45%,#5b989d 100%);
  min-height:100vh;
}

body:before{
  content:"";
  position:fixed;
  inset:0;
  background:var(--page);
  opacity:.28;
  z-index:-5;
}

a{text-decoration:none;color:inherit}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1120px,calc(100% - 28px));margin-inline:auto}

.night-bg{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:-3}
.moon{
  position:absolute;
  top:105px;
  right:8%;
  width:145px;
  height:145px;
  border-radius:50%;
  background:
    radial-gradient(circle at 35% 35%,#fff 0%,#f7f8ff 38%,#d7def0 72%,#bcc7df 100%);
  box-shadow:0 0 35px rgba(255,255,255,.85),0 0 90px rgba(210,220,255,.48);
  animation:floatMoon 7s ease-in-out infinite;
}
.moon:before,.moon:after{
  content:"";
  position:absolute;
  border-radius:50%;
  background:rgba(160,174,202,.18);
}
.moon:before{width:28px;height:28px;left:30px;top:34px}
.moon:after{width:38px;height:38px;right:26px;bottom:28px}

.star{
  position:absolute;
  width:4px;height:4px;
  border-radius:50%;
  background:#fff;
  box-shadow:0 0 12px #fff;
  animation:twinkle 2.8s ease-in-out infinite alternate;
}
.star-1{left:7%;top:18%}.star-2{left:14%;top:42%;animation-delay:.5s}.star-3{left:28%;top:12%;animation-delay:1s}
.star-4{left:36%;top:60%;animation-delay:1.5s}.star-5{right:28%;top:20%;animation-delay:.8s}
.star-6{right:18%;top:58%;animation-delay:1.2s}.star-7{right:5%;top:36%;animation-delay:.3s}.star-8{left:51%;top:8%;animation-delay:1.8s}

@keyframes twinkle{from{opacity:.2;transform:scale(.8)}to{opacity:1;transform:scale(1.35)}}
@keyframes floatMoon{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

.topbar{
  position:sticky;
  top:0;
  z-index:40;
  background:rgba(255,255,255,.78);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.4);
}
html[data-theme="dark"] .topbar{background:rgba(20,24,48,.85)}

.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:900}
.brand-icon{
  width:36px;height:36px;border-radius:12px;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--purple),var(--cyan));
}
.nav nav{display:flex;gap:20px;color:var(--muted);font-weight:800}
.nav nav a.active,.nav nav a:hover{color:var(--purple)}
.theme-toggle,.inner-theme{
  width:42px;height:42px;border:1px solid var(--border);
  border-radius:50%;background:var(--white);color:var(--text);font-weight:900
}

.page-wrap{padding:42px 0 58px}
.main-card{
  background:rgba(222,226,255,.95);
  border:1px solid rgba(255,255,255,.65);
  border-radius:26px;
  padding:25px;
  box-shadow:0 28px 75px rgba(28,29,79,.28);
}
html[data-theme="dark"] .main-card{background:rgba(35,41,72,.95)}

.app-head{display:flex;justify-content:space-between;align-items:center;gap:18px}
.app-title{display:flex;align-items:center;gap:13px}
.title-moon{
  width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--purple),var(--cyan));
  font-size:1.3rem;
}
.app-title h1{margin:0;color:var(--purple);font-size:1.8rem}
.app-title p{margin:4px 0 0;color:var(--muted)}

.continue-btn{
  width:max-content;
  margin:18px auto 14px;
  display:flex;align-items:center;gap:9px;
  padding:11px 20px;border-radius:999px;color:#fff;font-weight:900;
  background:linear-gradient(135deg,var(--purple),var(--cyan));
}

.ad-wide,.ad-box{
  display:grid;place-items:center;
  border:1px dashed rgba(93,87,200,.38);
  border-radius:14px;color:var(--muted);
  background:rgba(255,255,255,.38);
}
.ad-wide{height:76px;margin-bottom:20px}
.ad-box{height:150px;margin-top:15px}

.calculator-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.left-panel,.right-panel{
  background:rgba(248,249,255,.88);
  border:1px solid rgba(255,255,255,.72);
  border-radius:20px;
  padding:20px;
}
html[data-theme="dark"] .left-panel,
html[data-theme="dark"] .right-panel{background:rgba(30,35,62,.9)}

.tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}
.tab-btn{
  border:0;border-radius:12px;padding:13px;
  background:#eceeff;color:var(--muted);font-weight:900
}
html[data-theme="dark"] .tab-btn{background:#333959}
.tab-btn.active{background:var(--purple);color:#fff}

.picker-box{
  text-align:center;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:18px;
  padding:20px;
}
.picker-box p{margin:0;color:var(--muted);font-weight:800}
.selected-time{font-size:3.8rem;font-weight:900;letter-spacing:-.05em;margin:8px 0 18px}

.wheel-picker{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
.wheel-column{
  background:#f0f2ff;border-radius:14px;padding:10px;
  display:grid;place-items:center;gap:7px;
}
html[data-theme="dark"] .wheel-column{background:#343a5d}
.wheel-label{font-size:.75rem;color:var(--muted);font-weight:900}
.wheel-arrow{
  border:0;background:transparent;color:var(--purple);
  font-size:.88rem;font-weight:900
}
.wheel-value{font-size:2rem;font-weight:900;color:var(--purple)}
.period-btn{
  width:100%;border:0;border-radius:10px;padding:9px;
  background:#e8ebfa;color:var(--muted);font-weight:900
}
html[data-theme="dark"] .period-btn{background:#414866}
.period-btn.active{background:var(--purple);color:#fff}

.current-time{margin-top:15px;color:var(--muted);font-size:.88rem}

.calculate-btn{
  width:100%;margin-top:15px;
  border:0;border-radius:14px;padding:14px 18px;
  color:#fff;font-weight:900;
  background:linear-gradient(135deg,var(--purple),var(--cyan));
  box-shadow:0 13px 25px rgba(93,87,200,.24);
}

.settings-box,.recent-box{
  margin-top:14px;
  border:1px solid var(--border);
  border-radius:15px;
  background:rgba(255,255,255,.5);
  overflow:hidden;
}
.settings-toggle{
  width:100%;
  display:flex;justify-content:space-between;
  border:0;background:transparent;color:var(--text);
  padding:14px 15px;font-weight:900
}
.settings-content{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:0 15px 15px}
.settings-content.hidden{display:none}
.settings-content label span,.contact-form label span{
  display:block;margin-bottom:6px;color:var(--muted);font-size:.8rem;font-weight:900
}
.input-row{position:relative}
.input-row input{
  width:100%;padding:12px 70px 12px 12px;border:1px solid var(--border);
  border-radius:10px;background:var(--white);color:var(--text)
}
.input-row b{position:absolute;right:10px;top:50%;transform:translateY(-50%);font-size:.72rem;color:var(--muted)}

.recent-box{padding:14px}
.recent-head{display:flex;justify-content:space-between;align-items:center}
.recent-head h3{margin:0;font-size:1rem}
.recent-head button{border:0;background:transparent;color:var(--purple);font-weight:900}
.recent-empty{margin-top:10px;color:var(--muted);font-size:.88rem}
.recent-item{margin-top:9px;padding:10px;border-radius:10px;background:var(--white);color:var(--muted);font-size:.84rem}

.result-head h2{margin:0;color:var(--purple)}
.result-head span{display:block;margin-top:4px;color:var(--muted);font-size:.86rem}

.results-list{display:grid;gap:11px;margin-top:16px}
.result-card{
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  background:var(--white);
  border-radius:14px;
  border-left:4px solid var(--purple);
  padding:14px 15px;
  box-shadow:0 8px 20px rgba(34,38,80,.07);
}
.result-time{font-size:1.3rem;font-weight:900}
.result-meta{margin-top:3px;color:var(--muted);font-size:.82rem}
.copy-btn{
  width:40px;height:40px;border:0;border-radius:50%;
  background:#eef0ff;color:var(--purple);font-weight:900
}

.discover-box{
  margin-top:15px;background:var(--white);
  border:1px solid var(--border);
  border-radius:14px;overflow:hidden
}
.discover-box h3{margin:0;padding:14px;border-bottom:1px solid var(--border)}
.discover-box a{
  display:flex;justify-content:space-between;
  padding:13px 14px;border-bottom:1px solid var(--border);
  color:var(--muted);font-weight:800
}
.discover-box a:last-child{border-bottom:0}
.discover-box b{color:var(--purple);font-size:1.2rem}

.content-section{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}
.content-card,.legal-card{
  background:rgba(255,255,255,.88);
  border:1px solid rgba(255,255,255,.65);
  border-radius:20px;
  padding:24px;
  box-shadow:var(--shadow);
}
html[data-theme="dark"] .content-card,
html[data-theme="dark"] .legal-card{background:rgba(30,35,62,.92)}
.content-card h2{margin-top:0;color:var(--purple)}
.content-card p,.content-card li,.legal-card p{color:var(--muted);line-height:1.75}
.content-card ul{padding-left:20px}

.faq-section{margin-top:24px}
.faq-section h2{color:#fff;text-shadow:0 3px 14px rgba(0,0,0,.16)}
details{
  margin:10px 0;background:rgba(255,255,255,.9);
  border-radius:14px;padding:16px 18px;
  border:1px solid rgba(255,255,255,.65)
}
html[data-theme="dark"] details{background:rgba(30,35,62,.92)}
summary{cursor:pointer;font-weight:900}
details p{color:var(--muted);line-height:1.7}

.footer{background:rgba(15,18,36,.92);color:#fff;padding:34px 0 16px}
.footer-inner{display:flex;justify-content:space-between;gap:20px}
.footer-inner p{color:#b6bfd6}
.footer-links{display:flex;gap:16px;flex-wrap:wrap}
.copyright{border-top:1px solid rgba(255,255,255,.1);padding-top:15px;margin-top:18px;color:#adb6cc;font-size:.88rem}

.cookie-bar{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:100;
  display:flex;justify-content:space-between;align-items:center;gap:18px;
  background:#11162d;color:#fff;padding:14px 16px;border-radius:14px;
  box-shadow:0 18px 45px rgba(0,0,0,.3)
}
.cookie-bar button{
  border:0;border-radius:999px;padding:9px 18px;
  background:var(--purple);color:#fff;font-weight:900
}
.cookie-bar.hidden{display:none}

.legal-page{padding:60px 0}
.contact-form{display:grid;gap:14px}
.contact-form input,.contact-form textarea{
  width:100%;padding:12px;border:1px solid var(--border);border-radius:10px;background:var(--white);color:var(--text)
}
.notice{padding:12px;border-radius:10px;background:#e7f8ff;margin-bottom:14px}

@media(max-width:900px){
  .calculator-grid,.content-section{grid-template-columns:1fr}
  .moon{width:115px;height:115px;right:2%;top:90px}
}
@media(max-width:680px){
  .nav nav{display:none}
  .page-wrap{padding-top:24px}
  .main-card{padding:14px;border-radius:20px}
  .app-title h1{font-size:1.25rem}
  .app-title p{font-size:.8rem}
  .title-moon{width:40px;height:40px}
  .left-panel,.right-panel{padding:14px}
  .selected-time{font-size:3rem}
  .wheel-picker{grid-template-columns:1fr 1fr}
  .wheel-column:last-child{grid-column:1/-1}
  .settings-content{grid-template-columns:1fr}
  .footer-inner,.cookie-bar{align-items:flex-start;flex-direction:column}
  .cookie-bar button{width:100%}
}


/* Content and accessibility improvements */
.sr-only{
  position:absolute!important;width:1px!important;height:1px!important;
  padding:0!important;margin:-1px!important;overflow:hidden!important;
  clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important;
}
.eyebrow{
  display:inline-block;
  margin-bottom:7px;
  color:var(--purple);
  font-size:.76rem;
  font-weight:900;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.intro-content{
  margin:24px 0 18px;
  padding:24px;
  border-radius:18px;
  background:rgba(255,255,255,.74);
  border:1px solid var(--border);
}
html[data-theme="dark"] .intro-content{background:rgba(30,35,62,.88)}
.intro-content h2,.calculator-intro h2{margin:0 0 10px;color:var(--purple)}
.intro-content p,.calculator-intro p{margin:8px 0;color:var(--muted);line-height:1.78}
.quick-nav{
  display:flex;flex-wrap:wrap;gap:9px;
  margin:16px 0 22px;
}
.quick-nav a{
  padding:9px 13px;border-radius:999px;
  background:rgba(255,255,255,.76);
  border:1px solid var(--border);
  color:var(--purple);font-size:.86rem;font-weight:900;
}
html[data-theme="dark"] .quick-nav a{background:rgba(30,35,62,.9)}
.calculator-intro{
  margin:0 0 14px;
  padding:20px;
  border-radius:18px;
  background:rgba(255,255,255,.6);
  border:1px solid var(--border);
}
html[data-theme="dark"] .calculator-intro{background:rgba(30,35,62,.8)}
.calculator-intro h2{font-size:1.35rem}
.explanation-box{
  margin-top:15px;
  padding:16px;
  border-radius:14px;
  background:rgba(93,87,200,.08);
  border:1px solid rgba(93,87,200,.14);
}
.explanation-box h3{margin:0 0 7px;color:var(--purple)}
.explanation-box p{margin:0;color:var(--muted);line-height:1.65}
.full-card{margin-top:24px}
.text-link{color:var(--purple);font-weight:900;text-decoration:underline;text-underline-offset:3px}
.legal-card h2{margin-top:28px;color:var(--purple)}
.legal-card a{color:var(--purple)}
.legal-card p,.legal-card li{line-height:1.8}
.notice{
  margin:16px 0;padding:14px 16px;border-radius:12px;
  background:rgba(26,184,235,.1);border:1px solid rgba(26,184,235,.25);
  color:var(--text);line-height:1.6;
}
.contact-send{display:block;text-align:center;margin-bottom:15px}
.contact-email{margin-top:20px}
.trust-note{
  margin:24px 0 0;
  padding:18px 20px;
  border-radius:16px;
  background:rgba(255,255,255,.78);
  border:1px solid var(--border);
  color:var(--muted);
  line-height:1.7;
}
html[data-theme="dark"] .trust-note{background:rgba(30,35,62,.9)}
.trust-note strong{color:var(--text)}
.footer-about{max-width:560px}
.footer-about p{line-height:1.7;margin-bottom:0}

@media (max-width: 820px){
  .nav{flex-wrap:wrap;padding:10px 0}
  .nav nav{order:3;width:100%;justify-content:center;gap:14px;overflow-x:auto;padding-bottom:3px}
  .calculator-grid,.content-section{grid-template-columns:1fr}
  .main-card{padding:18px}
  .app-title h1{font-size:1.45rem}
  .selected-time{font-size:3rem}
}
@media (max-width: 560px){
  .container{width:min(100% - 18px,1120px)}
  .page-wrap{padding-top:22px}
  .main-card{border-radius:20px;padding:14px}
  .app-head{align-items:flex-start}
  .inner-theme{flex:0 0 auto}
  .intro-content,.calculator-intro,.content-card,.legal-card{padding:18px}
  .wheel-picker{gap:7px}
  .wheel-column{padding:8px 5px}
  .settings-content{grid-template-columns:1fr}
  .quick-nav a{font-size:.78rem}
  .footer-inner{flex-direction:column}
  .cookie-bar{left:9px;right:9px;bottom:9px;align-items:flex-start}
}