/* ==========================================================================
   DarkSky course gate — styles per DarkSky Brand ID Guidelines v1 (Feb 2023)
   Palette: Sea Blue #262262 · Sun #FBB042 · Emerald #2BB673 · Fire #F04D23
            Eggplant #662D91 · Blue Sky #4E5EAF · Gray 10 #161616
   Type:    TT Norms Pro (primary brand typeface)
   ========================================================================== */

@font-face{
  font-family:'TT Norms Pro';
  src:url('../fonts/TTNormsPro-Regular.ttf') format('truetype');
  font-weight:400;font-style:normal;font-display:swap;
}
@font-face{
  font-family:'TT Norms Pro';
  src:url('../fonts/TTNormsPro-Medium.ttf') format('truetype');
  font-weight:500;font-style:normal;font-display:swap;
}
@font-face{
  font-family:'TT Norms Pro';
  src:url('../fonts/TTNormsPro-DemiBold.ttf') format('truetype');
  font-weight:600;font-style:normal;font-display:swap;
}
@font-face{
  font-family:'TT Norms Pro';
  src:url('../fonts/TTNormsPro-Bold.ttf') format('truetype');
  font-weight:700;font-style:normal;font-display:swap;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}

:root{
  --sea-blue:#262262;
  --sun:#FBB042;
  --emerald:#2BB673;
  --fire:#F04D23;
  --eggplant:#662D91;
  --blue-sky:#4E5EAF;
  --gray-10:#161616;
  --paper:#FFFFFF;
  --panel:#F4F4F8;
  --ink:#161616;
  --ink-2:#4A4A55;
  --ink-3:#8B8B96;
  --line:rgba(38,34,98,0.14);
  --night-grad:linear-gradient(140deg,#161616 0%,#262262 55%,#662D91 120%);
  --maxw:880px;
}

body{
  background:var(--paper);
  color:var(--ink);
  font-family:'TT Norms Pro',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}

::selection{background:var(--sea-blue);color:#fff;}
a{color:inherit;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px 80px;}

/* Header ------------------------------------------------------------------ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,0.92);
  backdrop-filter:saturate(150%) blur(12px);
  -webkit-backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{
  max-width:var(--maxw);margin:0 auto;padding:0 28px;height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:flex;align-items:center;text-decoration:none;}
.brand img{height:32px;width:auto;display:block;}
.nav-tag{font-size:13px;font-weight:600;color:var(--ink-3);letter-spacing:.02em;}

/* Course head — night-sky hero band --------------------------------------- */
.course-hero{
  background:var(--night-grad);
  color:#fff;
}
.course-head{max-width:var(--maxw);margin:0 auto;padding:56px 28px 44px;}
.eyebrow{display:flex;align-items:center;gap:9px;margin-bottom:14px;}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--sun);}
.eyebrow span:last-child{font-size:14px;font-weight:600;color:var(--sun);}
.course-head h1{
  font-weight:700;font-size:clamp(2.1rem,5vw,3rem);
  line-height:1.05;letter-spacing:-0.02em;margin:0 0 14px;
}
.course-progress-line{color:rgba(255,255,255,0.75);font-size:15px;margin:0 0 12px;}
.progress-track{height:8px;border-radius:99px;background:rgba(255,255,255,0.18);overflow:hidden;}
.progress-fill{
  height:100%;width:0;border-radius:99px;background:var(--sun);
  transition:width .5s cubic-bezier(.2,.6,.3,1);
}

/* Module cards -------------------------------------------------------------- */
.module-list{display:flex;flex-direction:column;gap:16px;padding-top:36px;}
.module-card{
  display:flex;align-items:center;gap:22px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:22px 24px;text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
a.module-card:hover{
  transform:translateY(-2px);
  border-color:var(--blue-sky);
  box-shadow:0 10px 30px rgba(38,34,98,0.12);
}
.module-card.is-locked{background:var(--panel);opacity:.75;}
.module-card.is-complete{border-color:rgba(43,182,115,.45);}

.module-num{
  flex:none;font-weight:600;font-size:13px;
  color:var(--sea-blue);background:rgba(38,34,98,.07);
  border-radius:10px;padding:10px 12px;white-space:nowrap;
}
.is-locked .module-num{color:var(--ink-3);background:rgba(22,22,22,.05);}
.is-complete .module-num{color:var(--emerald);background:rgba(43,182,115,.1);}

.module-body{flex:1;min-width:0;}
.module-body h2{
  font-weight:600;font-size:19px;letter-spacing:-0.01em;
  margin:0 0 4px;color:var(--sea-blue);
}
.is-locked .module-body h2{color:var(--ink-2);}
.module-body p{margin:0;color:var(--ink-2);font-size:14.5px;line-height:1.5;}
.lock-note{margin-top:6px !important;color:var(--ink-3) !important;font-size:13px !important;font-weight:600;}

.module-meta{flex:none;display:flex;flex-direction:column;align-items:flex-end;gap:8px;}
.minutes{font-size:13px;color:var(--ink-3);}

.badge{font-size:12.5px;font-weight:700;border-radius:99px;padding:5px 12px;white-space:nowrap;}
.badge-open{color:var(--sea-blue);background:rgba(251,176,66,.35);}
.badge-done{color:#1B7A4E;background:rgba(43,182,115,.14);}
.badge-locked{color:var(--ink-3);background:rgba(22,22,22,.06);}

/* Footer ------------------------------------------------------------------- */
.course-foot{margin-top:40px;text-align:center;}
.reset-link{
  border:none;background:none;color:var(--ink-3);font:inherit;font-size:13.5px;
  text-decoration:underline;cursor:pointer;
}
.reset-link:hover{color:var(--ink-2);}

/* Player page ---------------------------------------------------------------- */
.player-page{display:flex;flex-direction:column;height:100vh;height:100dvh;}
.player-header .nav{max-width:none;}
.back-link{font-weight:600;font-size:14.5px;text-decoration:none;color:var(--sea-blue);}
.back-link:hover{text-decoration:underline;}
.player-title{
  font-weight:600;font-size:15px;color:var(--sea-blue);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.player-frame-wrap{flex:1;min-height:0;background:var(--gray-10);}
#module-frame{width:100%;height:100%;border:0;display:block;}

.complete-banner[hidden]{display:none;}
.complete-banner{
  display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;
  background:rgba(43,182,115,.12);border-bottom:1px solid rgba(43,182,115,.3);
  color:#1B7A4E;font-weight:600;font-size:14.5px;padding:12px 20px;
}
.banner-btn{
  background:var(--sun);color:var(--gray-10);text-decoration:none;font-weight:700;
  font-size:14px;border-radius:99px;padding:8px 18px;
}
.banner-btn:hover{filter:brightness(1.05);}

@media (max-width:640px){
  .module-card{flex-direction:column;align-items:flex-start;gap:12px;}
  .module-meta{flex-direction:row;align-items:center;}
  .player-title{display:none;}
}