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

:root{
  --bg:#0c0c0e;
  --panel:#1a1a1d;
  --panel-2:#212124;
  --border:#2c2c30;
  --text:#f4f4f5;
  --text-dim:#a1a1aa;
  --text-faint:#6b6b70;
  --red:#e8232d;
  --red-dark:#a3151d;
  --red-glow:rgba(232,35,45,.35);
  --green:#2ecc71;
  --radius:16px;
}

*{box-sizing:border-box;margin:0;padding:0;}
html,body{height:100%;}
body{
  font-family:'Inter',sans-serif;
  background:#050505;
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.headline{font-family:'Poppins',sans-serif;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;}
a{color:inherit;text-decoration:none;}

/* ---------- page wrapper / phone frame ---------- */
.page-wrap{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:18px;
  padding:32px 16px;
  background:
    radial-gradient(circle at 15% 10%, rgba(232,35,45,.14), transparent 45%),
    radial-gradient(circle at 85% 90%, rgba(232,35,45,.10), transparent 45%),
    #050505;
}
.page-wrap__header{
  text-align:center;
  max-width:420px;
}
.page-wrap__header img{height:34px;margin:0 auto 14px;}
.page-wrap__header h1{font-size:20px;margin-bottom:6px;}
.page-wrap__header p{color:var(--text-dim);font-size:13.5px;line-height:1.5;}

.phone{
  width:390px;
  height:844px;
  background:#000;
  border-radius:52px;
  padding:14px;
  box-shadow:0 0 0 2px #333, 0 30px 70px rgba(0,0,0,.65);
  position:relative;
  flex-shrink:0;
}
.phone__notch{
  position:absolute;
  top:14px;left:50%;transform:translateX(-50%);
  width:120px;height:28px;background:#000;border-radius:20px;
  z-index:5;
}
.phone__screen{
  width:100%;height:100%;
  background:var(--bg);
  border-radius:38px;
  overflow:hidden;
  position:relative;
  display:flex;
  flex-direction:column;
}
.statusbar{
  height:44px;flex-shrink:0;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 26px;font-size:14px;font-weight:600;color:var(--text);
}
.statusbar__icons{display:flex;gap:5px;align-items:center;font-size:12px;}

.screen{
  flex:1;
  overflow-y:auto;
  overflow-x:hidden;
  display:flex;
  flex-direction:column;
  scrollbar-width:none;
}
.screen::-webkit-scrollbar{display:none;}

.screen-body{padding:18px 18px 12px;flex:1;}
.screen-body.no-pad-b{padding-bottom:0;}

/* bottom nav */
.bottom-nav{
  flex-shrink:0;
  display:flex;
  border-top:1px solid var(--border);
  background:#0f0f11;
  padding:8px 6px 14px;
}
.bottom-nav__item{
  flex:1;
  display:flex;flex-direction:column;align-items:center;gap:3px;
  font-size:10.5px;color:var(--text-faint);
  background:none;border:none;padding:6px 2px;border-radius:10px;
}
.bottom-nav__item span.ic{font-size:19px;line-height:1;}
.bottom-nav__item.active{color:var(--red);}

/* header with back */
.topbar{
  display:flex;align-items:center;gap:12px;
  padding:4px 18px 14px;
  flex-shrink:0;
}
.topbar h2{font-size:17px;}
.back-btn{
  width:34px;height:34px;border-radius:50%;
  background:var(--panel);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  color:var(--text);font-size:16px;flex-shrink:0;
}
.topbar__side{margin-left:auto;display:flex;gap:8px;align-items:center;}

/* generic bits */
.greet-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.greet-row h1{font-size:21px;margin-bottom:3px;}
.greet-row p{color:var(--text-dim);font-size:13px;}
.bell{
  width:38px;height:38px;border-radius:50%;background:var(--panel);
  border:1px solid var(--border);display:flex;align-items:center;justify-content:center;
  font-size:16px;position:relative;flex-shrink:0;
}
.bell .dot{
  position:absolute;top:6px;right:7px;width:8px;height:8px;border-radius:50%;
  background:var(--red);border:2px solid #0f0f11;
}

.section-head{display:flex;align-items:center;justify-content:space-between;margin:20px 0 12px;}
.section-head h3{font-size:15px;}
.section-head a{color:var(--red);font-size:12.5px;font-weight:600;}

.continue-card{
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--panel);
  border:1px solid var(--border);
}
.continue-card__media{
  height:150px;position:relative;display:flex;align-items:center;justify-content:center;
  font-size:44px;
}
.continue-card__media .play{
  width:52px;height:52px;border-radius:50%;
  background:rgba(0,0,0,.55);backdrop-filter:blur(2px);
  display:flex;align-items:center;justify-content:center;
  border:1.5px solid rgba(255,255,255,.7);color:#fff;font-size:18px;
}
.continue-card__body{padding:13px 15px 15px;}
.continue-card__body h4{font-size:14.5px;margin-bottom:8px;line-height:1.35;}
.progress-row{display:flex;align-items:center;gap:8px;margin-bottom:10px;}
.progress-track{flex:1;height:5px;border-radius:4px;background:var(--panel-2);overflow:hidden;}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--red-dark),var(--red));border-radius:4px;}
.progress-pct{font-size:11px;color:var(--red);font-weight:700;flex-shrink:0;}
.btn{
  border:none;border-radius:11px;padding:11px 16px;font-weight:700;font-size:13.5px;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
}
.btn-primary{background:linear-gradient(90deg,var(--red),#ff4b52);color:#fff;box-shadow:0 8px 18px var(--red-glow);}
.btn-block{width:100%;}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text);}
.btn-ghost{background:var(--panel);color:var(--text);}

.course-row-card{
  display:flex;gap:12px;background:var(--panel);border:1px solid var(--border);
  border-radius:14px;padding:10px;margin-bottom:10px;align-items:center;
}
.course-thumb{
  width:64px;height:64px;border-radius:11px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:26px;color:#fff;
}
.course-row-card__body{flex:1;min-width:0;}
.course-row-card__body .tag{font-size:9.5px;letter-spacing:.04em;color:var(--text-faint);font-weight:700;}
.course-row-card__body h4{font-size:13.5px;margin:2px 0 7px;line-height:1.3;}
.course-row-card__meta{display:flex;align-items:center;gap:8px;font-size:10.5px;color:var(--text-dim);margin-top:6px;}

.tabs{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none;}
.tabs::-webkit-scrollbar{display:none;}
.tab{
  flex-shrink:0;padding:8px 15px;border-radius:20px;font-size:12.5px;font-weight:600;
  color:var(--text-dim);background:var(--panel);border:1px solid var(--border);white-space:nowrap;
}
.tab.active{background:var(--red);color:#fff;border-color:var(--red);}

.chip{
  display:inline-flex;align-items:center;gap:5px;font-size:10.5px;font-weight:700;
  padding:4px 9px;border-radius:20px;background:var(--panel-2);color:var(--text-dim);
}

/* course detail hero */
.course-hero{
  height:170px;border-radius:16px;display:flex;align-items:flex-end;padding:16px;position:relative;overflow:hidden;
  margin-bottom:14px;
}
.course-hero::after{
  content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.65),transparent 60%);
}
.course-hero__icon{position:absolute;top:16px;right:16px;font-size:34px;opacity:.85;z-index:1;}
.course-hero__body{position:relative;z-index:1;}
.course-hero .tag{color:var(--red);font-weight:800;font-size:10.5px;letter-spacing:.04em;}
.course-hero h2{font-size:19px;margin:4px 0 8px;line-height:1.25;}

.about-box{
  background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:14px;margin-bottom:14px;
  font-size:13px;color:var(--text-dim);line-height:1.6;
}
.stat-mini-row{display:flex;gap:10px;margin-bottom:14px;}
.stat-mini{
  flex:1;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:10px;text-align:center;
}
.stat-mini b{display:block;font-size:16px;color:var(--red);}
.stat-mini span{font-size:10px;color:var(--text-dim);}

.module{background:var(--panel);border:1px solid var(--border);border-radius:14px;margin-bottom:10px;overflow:hidden;}
.module__head{
  display:flex;align-items:center;justify-content:space-between;padding:13px 14px;cursor:pointer;
}
.module__head h4{font-size:13.5px;}
.module__head small{font-size:11px;color:var(--text-dim);}
.module__chev{color:var(--text-faint);transition:transform .2s;font-size:12px;}
.module.open .module__chev{transform:rotate(180deg);}
.module__lessons{display:none;border-top:1px solid var(--border);}
.module.open .module__lessons{display:block;}
.lesson-item{
  display:flex;align-items:center;gap:10px;padding:11px 14px;
  border-bottom:1px solid var(--border);
}
.lesson-item:last-child{border-bottom:none;}
.lesson-item .li-ic{
  width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:11px;flex-shrink:0;background:var(--panel-2);color:var(--text-faint);
}
.lesson-item.done .li-ic{background:rgba(46,204,113,.15);color:var(--green);}
.lesson-item.current .li-ic{background:var(--red);color:#fff;}
.lesson-item .li-body{flex:1;min-width:0;}
.lesson-item .li-body b{display:block;font-size:12.5px;font-weight:600;}
.lesson-item .li-body span{font-size:10.5px;color:var(--text-faint);}
.lesson-item.locked{opacity:.5;}
.lesson-item.current{background:rgba(232,35,45,.08);}

/* lesson / player screen */
.video-box{
  height:220px;border-radius:0;position:relative;display:flex;align-items:center;justify-content:center;flex-shrink:0;
  overflow:hidden;
}
.video-box__play{
  width:58px;height:58px;border-radius:50%;background:rgba(0,0,0,.5);border:1.5px solid rgba(255,255,255,.8);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;
}
.video-box__progress{
  position:absolute;left:0;right:0;bottom:0;padding:10px 14px 12px;
  background:linear-gradient(0deg,rgba(0,0,0,.75),transparent);
}
.video-box__bar{height:4px;border-radius:3px;background:rgba(255,255,255,.25);margin-bottom:7px;overflow:hidden;}
.video-box__bar i{display:block;height:100%;background:var(--red);width:0%;}
.video-box__time{display:flex;justify-content:space-between;font-size:10.5px;color:#eee;}

.topic-list{list-style:none;margin-top:8px;}
.topic-list li{
  display:flex;gap:9px;align-items:flex-start;font-size:12.5px;color:var(--text-dim);
  padding:7px 0;line-height:1.4;
}
.topic-list li::before{content:'✓';color:var(--green);font-weight:800;flex-shrink:0;}

.material-row{
  display:flex;align-items:center;gap:11px;background:var(--panel);border:1px solid var(--border);
  border-radius:12px;padding:11px 12px;margin-bottom:9px;
}
.material-row .m-ic{
  width:36px;height:36px;border-radius:9px;background:var(--panel-2);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;
}
.material-row .m-body{flex:1;min-width:0;}
.material-row .m-body b{display:block;font-size:12.5px;font-weight:600;}
.material-row .m-body span{font-size:10.5px;color:var(--text-faint);}
.dl-btn{
  width:32px;height:32px;border-radius:9px;background:rgba(232,35,45,.12);color:var(--red);
  display:flex;align-items:center;justify-content:center;border:none;font-size:14px;flex-shrink:0;
}

.lesson-nav{display:flex;gap:10px;margin-top:16px;}
.lesson-nav .btn{flex:1;}

/* profile */
.profile-head{display:flex;flex-direction:column;align-items:center;text-align:center;padding:8px 0 20px;}
.avatar-lg{width:84px;height:84px;border-radius:50%;object-fit:cover;border:3px solid var(--red);margin-bottom:12px;}
.profile-head h2{font-size:18px;margin-bottom:3px;}
.profile-head p{font-size:12.5px;color:var(--text-dim);}

.menu-list{background:var(--panel);border:1px solid var(--border);border-radius:14px;overflow:hidden;margin-top:6px;}
.menu-item{
  display:flex;align-items:center;gap:12px;padding:14px 15px;border-bottom:1px solid var(--border);font-size:13.5px;font-weight:500;
}
.menu-item:last-child{border-bottom:none;}
.menu-item .mi-ic{font-size:16px;width:20px;text-align:center;}
.menu-item .chev{margin-left:auto;color:var(--text-faint);}
.menu-item.danger{color:var(--red);}

/* login */
.login-screen{flex:1;display:flex;flex-direction:column;justify-content:center;padding:28px 26px;}
.login-screen__logo{text-align:center;margin-bottom:26px;}
.login-screen__logo img{height:40px;margin:0 auto 10px;}
.login-screen__logo p{font-size:12px;color:var(--text-dim);}
.field{margin-bottom:14px;}
.field label{display:block;font-size:12px;color:var(--text-dim);margin-bottom:6px;font-weight:600;}
.field input{
  width:100%;background:var(--panel);border:1px solid var(--border);border-radius:11px;
  padding:12px 14px;color:var(--text);font-size:13.5px;
}
.field input:focus{outline:none;border-color:var(--red);}
.login-links{display:flex;justify-content:space-between;align-items:center;margin:6px 0 22px;font-size:11.5px;color:var(--text-faint);}
.login-links a{color:var(--red);font-weight:600;}
.login-foot{text-align:center;margin-top:20px;font-size:12px;color:var(--text-faint);}

/* downloads */
.dl-group-title{font-size:12px;font-weight:700;color:var(--text-dim);margin:16px 0 8px;text-transform:uppercase;letter-spacing:.03em;}
.search-box{
  display:flex;align-items:center;gap:8px;background:var(--panel);border:1px solid var(--border);border-radius:12px;
  padding:11px 13px;margin-bottom:14px;
}
.search-box input{flex:1;background:none;border:none;color:var(--text);font-size:13px;}
.search-box input:focus{outline:none;}
.search-box .ic{color:var(--text-faint);}

/* achievement chips small */
.ach-strip{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px;}
.ach-item{
  flex-shrink:0;width:78px;text-align:center;background:var(--panel);border:1px solid var(--border);
  border-radius:12px;padding:10px 6px;
}
.ach-item .em{font-size:22px;}
.ach-item span{display:block;font-size:9.5px;color:var(--text-dim);margin-top:5px;line-height:1.25;}

.donut{
  width:96px;height:96px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;position:relative;
  background:conic-gradient(var(--red) calc(var(--pct)*1%), var(--panel-2) 0);
}
.donut::before{content:'';position:absolute;inset:9px;border-radius:50%;background:var(--panel);}
.donut b{position:relative;font-size:18px;z-index:1;}

.empty-state{
  text-align:center;padding:40px 20px;color:var(--text-dim);
}
.empty-state .em{font-size:40px;margin-bottom:10px;}
.empty-state h4{color:var(--text);font-size:14px;margin-bottom:6px;}
.empty-state p{font-size:12.5px;line-height:1.5;}

/* footer note under phone */
.demo-note{
  max-width:390px;text-align:center;font-size:11.5px;color:var(--text-faint);line-height:1.5;
}
.demo-note b{color:var(--text-dim);}

/* fullscreen-on-mobile behaviour */
@media (max-width:560px){
  .page-wrap{padding:0;background:#050505;}
  .page-wrap__header{display:none;}
  .phone{width:100%;height:100vh;border-radius:0;box-shadow:none;padding:0;}
  .phone__notch{display:none;}
  .phone__screen{border-radius:0;}
  .demo-note{display:none;}
}