:root{
  --bg:#050605;--card:#121812;--card2:#182018;--text:#fff;--muted:#d6c7b2;--beige:#eadcc6;--line:rgba(255,255,255,.12);--danger:#ff6b86;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at 80% 10%,rgba(234,220,198,.12),transparent 34rem),var(--bg);color:var(--text);line-height:1.55}
button,input,select{font:inherit}
button{cursor:pointer}
.hidden{display:none!important}
.btn{min-height:44px;padding:0 18px;border-radius:999px;border:0;display:inline-flex;align-items:center;justify-content:center;font-weight:900;text-align:center}
.btn-primary{background:linear-gradient(135deg,#fff,var(--beige));color:#111}
.btn-ghost{background:rgba(255,255,255,.08);color:white;border:1px solid var(--line)}
.topbar{height:80px;display:flex;align-items:center;justify-content:space-between;padding:0 32px;border-bottom:1px solid var(--line);background:rgba(5,6,5,.85);backdrop-filter:blur(16px);position:sticky;top:0;z-index:5}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,#fff,var(--beige));color:#111;font-weight:1000;font-size:1.5rem;box-shadow:0 0 28px rgba(234,220,198,.25)}
.brand small{display:block;color:var(--muted);font-weight:800}
.hero{width:min(1180px,calc(100% - 32px));margin:0 auto;min-height:calc(100vh - 80px);display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;padding:70px 0}
.eyebrow{color:var(--beige);font-weight:950;margin-bottom:18px}
.hero h1{font-size:clamp(3rem,7vw,6.8rem);line-height:.9;letter-spacing:-.08em;margin-bottom:22px}
.hero p{color:var(--muted);font-size:1.15rem;max-width:640px;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.login-card,.features article,.form,.stats div,.panel{background:linear-gradient(180deg,var(--card),#0a0d0a);border:1px solid var(--line);border-radius:28px;box-shadow:0 24px 80px rgba(0,0,0,.42)}
.login-card{padding:30px}
.login-card h2{font-size:2rem;margin-bottom:10px}
.credentials{color:var(--muted);margin:10px 0 22px}
label{display:block;margin:14px 0 7px;color:var(--muted);font-weight:850}
input,select{width:100%;padding:13px 14px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.07);color:#fff;outline:none}
select option{color:#111}
.full{width:100%;margin-top:18px}
.error{color:var(--danger);font-weight:800;margin-top:10px}
.features{width:min(1180px,calc(100% - 32px));margin:0 auto 60px;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.features article{padding:24px}
.features p{color:var(--muted);margin-top:8px}
#app-screen{display:grid;grid-template-columns:280px 1fr;min-height:100vh}
.sidebar{padding:24px;background:#080a08;border-right:1px solid var(--line)}
.side{margin-bottom:28px}
.nav{width:100%;min-height:48px;border-radius:14px;border:1px solid transparent;background:transparent;color:var(--muted);text-align:left;padding:0 16px;font-weight:900;margin-bottom:8px}
.nav:hover,.nav.active{color:#fff;background:rgba(234,220,198,.08);border-color:rgba(234,220,198,.22)}
.nav.danger{color:#ff9aad}
.content{padding:30px;overflow-x:auto}
.panel{display:none;padding:26px}
.panel.active{display:block}
.panel h1{font-size:2.6rem;letter-spacing:-.06em;margin-bottom:18px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}
.filters{display:flex;gap:10px;align-items:center}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stats div{padding:22px}
.stats span{color:var(--muted);font-weight:850}
.stats strong{display:block;color:var(--beige);font-size:2.2rem;margin-top:8px}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;margin-top:12px}
table{width:100%;min-width:980px;border-collapse:collapse;background:rgba(255,255,255,.025)}
th,td{padding:14px;border-bottom:1px solid rgba(255,255,255,.08);text-align:left}
th{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em}
.form{margin-top:20px;padding:24px;max-width:820px}
.form h3{font-size:1.6rem;margin-bottom:8px}
.row-actions{display:flex;gap:8px;flex-wrap:wrap}
.calendar{display:grid;grid-template-columns:130px repeat(6, minmax(150px,1fr));gap:8px;min-width:1120px;margin-top:20px;position:relative}
.cal-head,.cal-time,.slot{border:1px solid var(--line);border-radius:14px;padding:10px;background:rgba(255,255,255,.04);min-height:60px}
.cal-head{font-weight:950;color:var(--beige);text-align:center}
.cal-time{color:var(--muted);font-weight:900}
.slot{position:relative;background:rgba(255,255,255,.025)}
.class-block{position:absolute;left:6px;right:6px;top:6px;padding:10px;border-radius:14px;font-weight:900;border:2px solid rgba(255,255,255,.8);overflow:hidden;z-index:2;box-shadow:0 0 28px rgba(255,255,255,.25)}
.duration-30m{height:48px}
.duration-45m{height:78px}
.duration-1h{height:108px}
.school-color-0{background:linear-gradient(135deg,#ff9f1c,#ffbf69);color:#151006;box-shadow:0 0 30px rgba(255,159,28,.8)}
.school-color-1{background:linear-gradient(135deg,#00bbf9,#0077ff);color:#fff;box-shadow:0 0 30px rgba(0,187,249,.8)}
.school-color-2{background:linear-gradient(135deg,#9b5de5,#f15bb5);color:#fff;box-shadow:0 0 30px rgba(241,91,181,.8)}
.school-color-3{background:linear-gradient(135deg,#00f5d4,#00c853);color:#06140e;box-shadow:0 0 30px rgba(0,245,212,.8)}

.teacher-color-0{background:linear-gradient(135deg,#ff9f1c,#ffbf69);color:#151006;box-shadow:0 0 30px rgba(255,159,28,.8)}
.teacher-color-1{background:linear-gradient(135deg,#00bbf9,#0077ff);color:#fff;box-shadow:0 0 30px rgba(0,187,249,.8)}
.teacher-color-2{background:linear-gradient(135deg,#9b5de5,#f15bb5);color:#fff;box-shadow:0 0 30px rgba(241,91,181,.8)}
.teacher-color-3{background:linear-gradient(135deg,#00f5d4,#00c853);color:#06140e;box-shadow:0 0 30px rgba(0,245,212,.8)}
.teacher-color-4{background:linear-gradient(135deg,#fb5607,#ff006e);color:#fff;box-shadow:0 0 30px rgba(251,86,7,.65)}
.teacher-color-5{background:linear-gradient(135deg,#3a86ff,#8338ec);color:#fff;box-shadow:0 0 30px rgba(58,134,255,.65)}
.teacher-color-6{background:linear-gradient(135deg,#06d6a0,#118ab2);color:#05140f;box-shadow:0 0 30px rgba(6,214,160,.65)}
.teacher-color-7{background:linear-gradient(135deg,#ffd166,#ef476f);color:#18080d;box-shadow:0 0 30px rgba(255,209,102,.65)}
.teacher-color-8{background:linear-gradient(135deg,#7209b7,#4361ee);color:#fff;box-shadow:0 0 30px rgba(114,9,183,.65)}
.teacher-color-9{background:linear-gradient(135deg,#2ec4b6,#e71d36);color:#fff;box-shadow:0 0 30px rgba(46,196,182,.65)}

.class-block small{display:block;font-weight:800;opacity:.9;margin-top:4px}
.payments-table{min-width:1500px}
.payment-check{width:22px;height:22px;accent-color:var(--beige)}
@media(max-width:900px){.hero,#app-screen{grid-template-columns:1fr}.features,.stats{grid-template-columns:1fr}.sidebar{position:static}.panel-head{display:block}.filters{margin-top:12px}.topbar{padding:0 16px}}

/* Popup clase calendario */
.modal-backdrop{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.68);
  backdrop-filter:blur(8px);
  display:none;
  align-items:center;
  justify-content:center;
  padding:20px;
  z-index:100;
}

.modal-backdrop.active{
  display:flex;
}

.class-modal{
  width:min(520px,100%);
  background:linear-gradient(180deg,var(--card),#090b09);
  border:1px solid var(--line);
  border-radius:28px;
  box-shadow:0 30px 90px rgba(0,0,0,.65);
  padding:26px;
}

.class-modal h2{
  font-size:2rem;
  letter-spacing:-.05em;
  margin-bottom:10px;
}

.class-modal p{
  color:var(--muted);
  margin:8px 0;
  font-weight:800;
}

.class-modal strong{
  color:#fff;
}

.modal-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:22px;
}

.class-block{
  cursor:pointer;
}

.mini{
  position:absolute;
  right:8px;
  top:8px;
  width:24px;
  height:24px;
  border-radius:999px;
  border:0;
  background:rgba(0,0,0,.35);
  color:#fff;
  font-weight:900;
  display:grid;
  place-items:center;
}


/* Home colaboradores */
.home-nav{
  display:flex;
  gap:18px;
  align-items:center;
  color:var(--muted);
  font-weight:850;
}

.home-nav a:hover{
  color:#fff;
}

.collaborators-section{
  width:min(1180px,calc(100% - 32px));
  margin:0 auto 70px;
}

.section-heading{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:28px;
  margin-bottom:28px;
}

.section-heading h2{
  font-size:clamp(2.4rem,5vw,5rem);
  line-height:.9;
  letter-spacing:-.08em;
}

.collaborators-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}

.collab-card{
  background:linear-gradient(180deg,var(--card),#0a0d0a);
  border:1px solid var(--line);
  border-radius:28px;
  padding:24px;
  box-shadow:0 24px 80px rgba(0,0,0,.38);
  min-height:260px;
}

.collab-card h3{
  font-size:1.45rem;
  margin-bottom:6px;
}

.collab-school{
  color:var(--beige);
  font-weight:950;
  margin-bottom:16px;
}

.specialty-list{
  display:grid;
  gap:12px;
}

.specialty-row{
  padding:13px;
  border-radius:16px;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(234,220,198,.16);
}

.specialty-row strong{
  display:block;
  margin-bottom:4px;
}

.specialty-row span{
  color:var(--muted);
  font-weight:800;
}

.specialty-empty{
  opacity:.55;
}

@media(max-width:900px){
  .collaborators-grid{
    grid-template-columns:1fr;
  }

  .section-heading{
    display:block;
  }

  .home-nav{
    display:none;
  }
}


.small-help{
  font-size:.82rem;
  margin-top:6px;
}

select[multiple]{
  min-height:150px;
}

.specialty-tags{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}

.specialty-tag{
  display:inline-flex;
  padding:5px 9px;
  border-radius:999px;
  background:rgba(234,220,198,.12);
  color:var(--beige);
  border:1px solid rgba(234,220,198,.24);
  font-size:.8rem;
  font-weight:900;
}

.professor-list{
  display:grid;
  gap:10px;
}

.professor-item{
  padding:12px;
  border-radius:16px;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(234,220,198,.16);
}

.professor-item strong{
  display:block;
  margin-bottom:7px;
}


.dashboard-summaries{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
  margin-top:22px;
}

.summary-card{
  background:linear-gradient(180deg,var(--card),#0a0d0a);
  border:1px solid var(--line);
  border-radius:28px;
  box-shadow:0 24px 80px rgba(0,0,0,.38);
  padding:22px;
}

.summary-card h2{
  font-size:1.55rem;
  letter-spacing:-.04em;
  margin-bottom:6px;
}

.summary-card .table-wrap table{
  min-width:620px;
}

@media(max-width:1100px){
  .dashboard-summaries{
    grid-template-columns:1fr;
  }
}


/* Calendario por aulas */
.calendar{
  grid-template-columns:130px repeat(var(--calendar-cols, 6), minmax(150px,1fr));
}

.cal-head.aula-head{
  background:rgba(234,220,198,.09);
}

.class-block{
  min-height:48px;
}


/* Fila superior de días en Horarios */
.calendar-days-row{
  display:grid;
  grid-template-columns:repeat(6, minmax(120px,1fr));
  gap:10px;
  margin:18px 0 14px;
  min-width:760px;
}

.day-tab{
  min-height:48px;
  border-radius:16px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  color:var(--muted);
  font-weight:950;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  transition:.18s ease;
}

.day-tab:hover,
.day-tab.active{
  background:linear-gradient(135deg,#fff,var(--beige));
  color:#111;
  box-shadow:0 0 28px rgba(234,220,198,.22);
  transform:translateY(-1px);
}


/* Alineación superior de días con calendario */
.calendar-days-row{
  grid-template-columns:130px repeat(6, minmax(150px,1fr)) !important;
  min-width:1120px;
}


#passwordMessage{
  margin-top:12px;
  font-weight:900;
}

#passwordMessage.ok{
  color:var(--beige);
}

#passwordMessage.error{
  color:var(--danger);
}


/* Correcciones formularios y horarios */
select[multiple],
select[multiple] option{
  color:#111;
  background:#fff;
}

select[multiple]{
  min-height:150px;
}

.calendar-days-row{
  grid-template-columns:130px repeat(6, minmax(150px,1fr)) !important;
  min-width:1120px;
}

.calendar-day-spacer{
  min-height:48px;
  border-radius:16px;
  border:1px solid transparent;
  background:transparent;
}

.form-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:18px;
}

@media(max-width:680px){
  .form-actions .btn{
    width:100%;
  }
}


/* Leyenda de escuelas en horarios */
.school-legend{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:14px 0 6px;
}

.legend-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  color:var(--muted);
  font-weight:900;
}

.legend-dot{
  width:14px;
  height:14px;
  border-radius:999px;
  box-shadow:0 0 16px currentColor;
}

.legend-color-0{ color:#ff9f1c; background:#ff9f1c; }
.legend-color-1{ color:#00bbf9; background:#00bbf9; }
.legend-color-2{ color:#f15bb5; background:#f15bb5; }
.legend-color-3{ color:#00f5d4; background:#00f5d4; }
.legend-color-4{ color:#fb5607; background:#fb5607; }
.legend-color-5{ color:#3a86ff; background:#3a86ff; }
.legend-color-6{ color:#06d6a0; background:#06d6a0; }
.legend-color-7{ color:#ffd166; background:#ffd166; }
.legend-color-8{ color:#7209b7; background:#7209b7; }
.legend-color-9{ color:#2ec4b6; background:#2ec4b6; }



/* Resumen de pagos */
.payments-summary-table{
  min-width:1000px;
}

.price-input{
  width:110px;
  text-align:right;
  font-weight:900;
}

.total-cell{
  color:var(--beige);
  font-weight:1000;
  font-size:1.05rem;
}

.paid-count{
  font-weight:900;
}


/* Total y gráfica de resumen de pagos */
.revenue-total-card{
  margin-top:22px;
  padding:24px;
  border-radius:24px;
  border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(234,220,198,.18),rgba(255,255,255,.04));
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
}

.revenue-total-card span{
  color:var(--muted);
  font-weight:900;
}

.revenue-total-card strong{
  color:var(--beige);
  font-size:2.1rem;
  line-height:1;
}

.chart-card{
  margin-top:22px;
  padding:24px;
  border-radius:24px;
  border:1px solid var(--line);
  background:linear-gradient(180deg,var(--card),#0a0d0a);
  overflow-x:auto;
}

.chart-card h2{
  margin-bottom:6px;
  letter-spacing:-.04em;
}

#revenueChart{
  width:100%;
  min-width:900px;
  height:420px;
  margin-top:16px;
  display:block;
}


#paymentSummarySchoolFilter,
#paymentSummaryStudentFilter{
  min-width:220px;
}


/* Leyenda gráfica ingresos por escuela */
.chart-legend{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:16px;
}

.chart-legend-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  color:var(--muted);
  font-weight:900;
}

.chart-legend-dot{
  width:14px;
  height:14px;
  border-radius:999px;
  display:inline-block;
  box-shadow:0 0 16px currentColor;
}



/* =========================================================
   ADAGIO PREMIUM STYLE
   ========================================================= */

:root{
  --bg:#070706;
  --bg-2:#0e0d0b;
  --card:#12110f;
  --card2:#191712;
  --text:#ffffff;
  --muted:#d7c8ae;
  --muted-2:#a99b84;
  --beige:#eadcc6;
  --gold:#c8a96a;
  --gold-2:#8f7442;
  --line:rgba(234,220,198,.16);
  --line-strong:rgba(234,220,198,.28);
  --danger:#ff6b86;
  --shadow:0 30px 100px rgba(0,0,0,.55);
  --radius:28px;
}

body{
  background:
    radial-gradient(circle at 82% 18%, rgba(200,169,106,.18), transparent 30rem),
    radial-gradient(circle at 12% 88%, rgba(200,169,106,.10), transparent 34rem),
    linear-gradient(180deg,#070706,#0b0b09 42%,#050504);
  color:var(--text);
  letter-spacing:-.01em;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:-1;
  background:
    repeating-radial-gradient(ellipse at 70% 62%, rgba(200,169,106,.13) 0 1px, transparent 1px 18px),
    linear-gradient(90deg, transparent, rgba(234,220,198,.04), transparent);
  opacity:.34;
  mask-image:linear-gradient(to bottom, transparent 0%, #000 18%, #000 80%, transparent 100%);
}

.premium-topbar{
  min-height:142px;
  height:auto;
  padding:30px 4vw;
  background:
    radial-gradient(circle at 86% 8%, rgba(200,169,106,.18), transparent 28rem),
    rgba(5,5,4,.78);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(22px);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:32px;
  position:sticky;
  top:0;
  z-index:20;
}

.premium-brand{
  display:flex;
  align-items:center;
  gap:24px;
}

.premium-logo{
  width:92px;
  height:92px;
  display:grid;
  place-items:center;
  font-size:4.2rem;
  line-height:1;
  font-weight:1000;
  color:transparent;
  background:linear-gradient(135deg,#fff4dc,#c8a96a 52%,#7d622e);
  -webkit-background-clip:text;
  background-clip:text;
  text-shadow:0 0 36px rgba(200,169,106,.24);
}

.brand-divider{
  width:1px;
  height:76px;
  background:linear-gradient(180deg,transparent,var(--beige),transparent);
  opacity:.62;
}

.premium-brand strong{
  display:block;
  font-size:clamp(2rem,3vw,3rem);
  line-height:1;
  letter-spacing:-.06em;
}

.premium-brand small{
  display:block;
  margin-top:8px;
  color:var(--muted);
  font-weight:850;
  font-size:1.2rem;
}

.premium-home-nav{
  display:flex;
  align-items:center;
  gap:34px;
}

.premium-home-nav a{
  display:flex;
  align-items:center;
  gap:12px;
  color:#fff;
  text-decoration:none;
  font-weight:900;
  font-size:1.1rem;
  padding:16px 4px;
  border-bottom:3px solid transparent;
  transition:.2s ease;
}

.premium-home-nav a:hover{
  color:var(--beige);
  border-bottom-color:var(--gold);
  transform:translateY(-1px);
}

.nav-icon{
  color:var(--gold);
  font-size:1.35rem;
}

.hero{
  min-height:calc(100vh - 142px);
  align-items:center;
  padding-top:80px;
  padding-bottom:80px;
}

.hero h1{
  font-size:clamp(3.3rem,8vw,7.4rem);
  line-height:.88;
  letter-spacing:-.09em;
  max-width:860px;
  text-wrap:balance;
}

.hero p{
  color:var(--muted);
  font-size:1.18rem;
}

.eyebrow{
  color:var(--gold);
  text-transform:uppercase;
  letter-spacing:.14em;
  font-size:.85rem;
}

.login-card,
.features article,
.form,
.stats div,
.panel,
.collab-card,
.summary-card,
.chart-card,
.revenue-total-card{
  background:
    linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.015)),
    linear-gradient(145deg, var(--card), #080806);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

.login-card{
  padding:34px;
  position:relative;
  overflow:hidden;
}

.login-card h2{
  font-size:2.4rem;
  letter-spacing:-.07em;
}

.credentials,
.muted,
.card p,
.helper{
  color:var(--muted);
}

.btn{
  min-height:46px;
  border-radius:999px;
  align-items:center;
  justify-content:center;
  text-align:center;
  line-height:1;
  transition:.2s ease;
  box-shadow:0 10px 30px rgba(0,0,0,.25);
}

.btn:hover{
  transform:translateY(-1px);
  filter:brightness(1.05);
}

.btn-primary{
  background:linear-gradient(135deg,#fff7e7,var(--beige) 45%,#c8a96a);
  color:#17120a;
  border:1px solid rgba(255,255,255,.35);
}

.btn-ghost{
  background:rgba(255,255,255,.055);
  color:var(--beige);
  border:1px solid var(--line-strong);
}

.btn-danger{
  background:rgba(255,107,134,.12);
  color:#fff;
  border:1px solid rgba(255,107,134,.38);
}

label{
  color:var(--beige);
  font-weight:900;
}

input,
select,
textarea{
  background:rgba(255,255,255,.055);
  border:1px solid var(--line);
  color:#fff;
  border-radius:16px;
  min-height:48px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}

input:focus,
select:focus,
textarea:focus{
  border-color:rgba(234,220,198,.5);
  box-shadow:0 0 0 4px rgba(234,220,198,.08);
}

select option{
  color:#111;
}

#app-screen{
  background:
    radial-gradient(circle at 80% 8%, rgba(200,169,106,.13), transparent 32rem),
    linear-gradient(180deg,#070706,#0b0a08);
}

.sidebar{
  background:
    linear-gradient(180deg, rgba(234,220,198,.055), transparent),
    #070806;
  border-right:1px solid var(--line);
  box-shadow:20px 0 70px rgba(0,0,0,.28);
}

.sidebar .brand{
  padding-bottom:22px;
  border-bottom:1px solid var(--line);
}

.sidebar .brand-mark{
  background:linear-gradient(135deg,#fff7e7,#c8a96a);
  color:#151006;
  border-radius:18px;
}

.nav{
  border-radius:16px;
  color:var(--muted);
  min-height:50px;
  display:flex;
  align-items:center;
  font-weight:950;
  transition:.18s ease;
}

.nav:hover,
.nav.active{
  color:#161006;
  background:linear-gradient(135deg,#fff7e7,var(--beige),#c8a96a);
  border-color:rgba(255,255,255,.35);
  box-shadow:0 12px 30px rgba(200,169,106,.18);
}

.nav.danger:hover,
.nav.danger.active{
  background:rgba(255,107,134,.16);
  color:#fff;
}

.content{
  padding:36px;
}

.panel{
  position:relative;
  overflow:hidden;
}

.panel h1{
  font-size:clamp(2.5rem,5vw,4.8rem);
  line-height:.92;
  letter-spacing:-.085em;
  margin-bottom:22px;
}

.stats div{
  padding:24px;
  border-radius:24px;
}

.stats span{
  color:var(--muted);
}

.stats strong{
  color:var(--beige);
  text-shadow:0 0 22px rgba(200,169,106,.18);
}

.table-wrap{
  border:1px solid var(--line);
  border-radius:22px;
  background:rgba(255,255,255,.025);
  box-shadow:0 18px 60px rgba(0,0,0,.22);
}

table{
  background:transparent;
}

th{
  color:var(--beige);
  background:rgba(234,220,198,.045);
  font-weight:1000;
}

td{
  color:#f7f3ec;
}

tr:hover td{
  background:rgba(234,220,198,.035);
}

.day-tab{
  background:rgba(255,255,255,.055);
  color:var(--muted);
  border:1px solid var(--line);
  border-radius:16px;
}

.day-tab:hover,
.day-tab.active{
  background:linear-gradient(135deg,#fff7e7,var(--beige),#c8a96a);
  color:#151006;
  box-shadow:0 18px 40px rgba(200,169,106,.18);
}

.cal-head,
.cal-time,
.slot{
  border-color:var(--line);
  border-radius:16px;
}

.cal-head{
  color:var(--beige);
  background:rgba(234,220,198,.07);
}

.cal-time{
  color:var(--muted);
  background:rgba(255,255,255,.035);
}

.slot{
  background:rgba(255,255,255,.025);
}

.class-block{
  border:2px solid rgba(255,255,255,.65);
  box-shadow:0 20px 40px rgba(0,0,0,.32),0 0 30px currentColor;
}

.specialty-tag,
.legend-item,
.chart-legend-item{
  background:rgba(234,220,198,.09);
  border:1px solid var(--line);
  color:var(--beige);
}

.revenue-total-card{
  background:
    radial-gradient(circle at 100% 0%,rgba(200,169,106,.18),transparent 18rem),
    linear-gradient(135deg,rgba(234,220,198,.12),rgba(255,255,255,.035));
}

.revenue-total-card strong{
  color:var(--beige);
  font-size:2.4rem;
}

@media(max-width:900px){
  .premium-topbar{
    min-height:auto;
    display:grid;
    gap:22px;
  }

  .premium-logo{
    width:72px;
    height:72px;
    font-size:3.2rem;
  }

  .brand-divider{
    height:58px;
  }

  .premium-home-nav{
    width:100%;
    justify-content:flex-start;
    overflow-x:auto;
  }

  .content{
    padding:20px;
  }
}


.annual-calendar-card,.annual-calendar-info{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  background:rgba(255,255,255,.045);
}
.annual-upload{display:grid;gap:12px;max-width:520px;margin:18px 0;}
.annual-file-card{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;}
.annual-file-name{font-weight:1000;color:var(--beige);}
.annual-file-date{color:var(--muted);font-size:.92rem;}
.custom-payments-wrap{margin:18px 0;}
.custom-payments-table{min-width:900px;}
textarea{
  width:100%;padding:13px 14px;border-radius:16px;border:1px solid var(--line);
  background:rgba(255,255,255,.055);color:#fff;resize:vertical;
}



/* Videos */
.videos-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:18px;
  margin-top:22px;
}

.video-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(255,255,255,.045);
  padding:22px;
  box-shadow:var(--shadow);
  display:grid;
  gap:12px;
}

.video-card h3{
  color:var(--beige);
  font-size:1.35rem;
  line-height:1.1;
}

.video-meta{
  color:var(--muted);
  font-size:.9rem;
  font-weight:800;
}

.video-description{
  color:var(--muted);
}

.video-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}


/* Horarios en franjas de 15 minutos */
.slot,
.cal-time{
  min-height:60px;
}
.duration-30m{height:108px!important;}
.duration-45m{height:168px!important;}
.duration-1h{height:228px!important;}



/* Previews videos y calendario anual */
.video-preview{
  width:100%;
  aspect-ratio:16/9;
  border-radius:18px;
  overflow:hidden;
  border:1px solid var(--line);
  background:rgba(255,255,255,.045);
}

.video-preview iframe,
.video-preview video{
  width:100%;
  height:100%;
  border:0;
  display:block;
  object-fit:cover;
}

.video-preview-empty,
.annual-preview-empty{
  display:grid;
  place-items:center;
  color:var(--muted);
  font-weight:900;
  min-height:180px;
  text-align:center;
  padding:18px;
}

.annual-preview{
  margin-top:18px;
  border:1px solid var(--line);
  border-radius:22px;
  overflow:hidden;
  background:rgba(255,255,255,.045);
}

.annual-preview img{
  width:100%;
  max-height:560px;
  object-fit:contain;
  display:block;
}

.annual-preview iframe{
  width:100%;
  height:620px;
  border:0;
  display:block;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-bottom: 18px;
}
.course-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  padding: 18px;
  margin-bottom: 18px;
}
.course-form { margin: 0; }
.current-course-name {
  display: inline-block;
  margin-top: 8px;
  font-size: 1.4rem;
  color: var(--gold, #d7ad62);
}
.course-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px;
}
.course-option {
  border: 1px solid rgba(215,173,98,0.35);
  border-radius: 14px;
  background: rgba(215,173,98,0.10);
  color: inherit;
  padding: 14px;
  cursor: pointer;
  text-align: left;
  font-weight: 700;
}
.course-option:hover { background: rgba(215,173,98,0.18); }
.course-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 12px 0;
}
.course-actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.course-status {
  display: inline-block;
  margin-left: 8px;
  font-size: 0.78rem;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
}
.course-status.active { color: #8ff0bf; }
.course-status.archived { color: #f0c48f; }
@media (max-width: 760px) {
  .course-row { align-items: flex-start; flex-direction: column; }
  .course-actions { justify-content: flex-start; }
}
.inline-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.inline-actions .btn{white-space:nowrap}


.course-sidebar-tree{
  margin: 6px 0 10px;
  padding-left: 6px;
  border-left: 1px solid rgba(215,173,98,.22);
}
.course-tree-empty{
  color: var(--muted);
  font-size: .82rem;
  padding: 8px 10px;
}
.course-tree-course{
  margin: 8px 0;
  border-radius: 14px;
  background: rgba(255,255,255,.025);
  border: 1px solid rgba(255,255,255,.06);
  overflow: hidden;
}
.course-tree-course.active{
  border-color: rgba(215,173,98,.35);
  background: rgba(215,173,98,.08);
}
.course-tree-title{
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  border: 0;
  background: transparent;
  color: var(--text);
  font-weight: 900;
  cursor: pointer;
  padding: 10px 10px;
  text-align: left;
}
.course-tree-title small{
  color: var(--gold);
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.course-tree-children{
  display: grid;
  gap: 3px;
  padding: 0 8px 10px 14px;
}
.course-tree-item{
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  text-align: left;
  padding: 7px 8px;
  border-radius: 10px;
  font-size: .9rem;
}
.course-tree-item:hover{
  color: var(--text);
  background: rgba(255,255,255,.07);
}