/* =====================================================================
   Omicron Escola de Fotografia — Plataforma de Cursos
   Tema claro, clean e responsivo
   ===================================================================== */

:root{
  --bg:        #fbfaf8;
  --surface:   #ffffff;
  --ink:       #16140f;
  --ink-soft:  #4b463d;
  --muted:     #8a8378;
  --line:      #e7e3db;
  --line-soft: #f0ece4;
  --accent:    #2563eb;   /* azul primário */
  --accent-ink:#1d4ed8;   /* azul escuro, para textos sobre fundo claro */
  --accent-soft:#e8effd;
  --ok:        #3f7d4e;
  --ok-soft:   #e7f1e8;
  --shadow:    0 1px 2px rgba(20,16,8,.04), 0 8px 24px rgba(20,16,8,.06);
  --shadow-lg: 0 12px 40px rgba(20,16,8,.12);
  --radius:    14px;
  --radius-sm: 9px;
  --maxw:      1140px;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; }

h1,h2,h3,h4{ font-family:var(--serif); font-weight:600; line-height:1.15; color:var(--ink); margin:0 0 .4em; letter-spacing:-.01em; }
h1{ font-size:clamp(2rem,4.4vw,3.3rem); }
h2{ font-size:clamp(1.5rem,3vw,2.2rem); }
h3{ font-size:1.18rem; }
p{ margin:0 0 1em; }

.container{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }
.muted{ color:var(--muted); }
.eyebrow{
  font-family:var(--sans); font-weight:600; font-size:.74rem;
  letter-spacing:.16em; text-transform:uppercase; color:var(--accent-ink);
}

/* ---------- Botões ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5rem;
  padding:.72rem 1.4rem; border-radius:999px; border:1px solid transparent;
  font-weight:600; font-size:.95rem; cursor:pointer; transition:.18s ease;
  white-space:nowrap;
}
.btn-primary{ background:var(--ink); color:#fff; }
.btn-primary:hover{ background:#000; transform:translateY(-1px); }
.btn-accent{ background:var(--accent); color:#fff; }
.btn-accent:hover{ background:var(--accent-ink); transform:translateY(-1px); }
.btn-ghost{ background:transparent; color:var(--ink); border-color:var(--line); }
.btn-ghost:hover{ background:var(--surface); border-color:var(--ink); }
.btn-sm{ padding:.5rem 1rem; font-size:.85rem; }
.btn-block{ width:100%; }

/* ---------- Topbar ---------- */
.topbar{
  position:sticky; top:0; z-index:40;
  background:rgba(251,250,248,.82); backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.topbar .inner{ display:flex; align-items:center; justify-content:space-between; height:96px; }
.brand{ display:flex; align-items:center; gap:.7rem; font-weight:700; letter-spacing:-.01em; }
.brand .mark{
  width:38px; height:38px; border-radius:50%; flex:0 0 38px;
  background:var(--ink); color:#fff; display:grid; place-items:center;
  font-family:var(--serif); font-size:1.15rem; font-weight:600;
}
.brand small{ display:block; font-weight:500; font-size:.7rem; letter-spacing:.13em; text-transform:uppercase; color:var(--muted); }
.brand-logo{ height:76px; width:auto; display:block; }
.brand-logo-sm{ height:60px; }
.auth-card .brand-logo{ height:96px; margin:0 auto; }
.nav{ display:flex; align-items:center; gap:1.6rem; }
.nav a.link{ font-size:.93rem; color:var(--ink-soft); font-weight:500; }
.nav a.link:hover{ color:var(--ink); }

/* ---------- Hero ---------- */
.hero{ padding:84px 0 64px; position:relative; overflow:hidden; }
.hero .eyebrow{ margin-bottom:1rem; }
.hero h1{ max-width:14ch; }
.hero p.lead{ font-size:1.16rem; color:var(--ink-soft); max-width:52ch; margin:1.1rem 0 1.8rem; }
.hero .cta-row{ display:flex; gap:.8rem; flex-wrap:wrap; }
.hero-stats{ display:flex; gap:2.4rem; margin-top:3rem; flex-wrap:wrap; }
.hero-stats .stat b{ font-family:var(--serif); font-size:1.9rem; display:block; line-height:1; }
.hero-stats .stat span{ font-size:.85rem; color:var(--muted); }

/* ---------- Seções ---------- */
.section{ padding:64px 0; }
.section-head{ max-width:60ch; margin-bottom:2.4rem; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

/* ---------- Grade de cursos ---------- */
.course-grid{
  display:grid; gap:22px;
  grid-template-columns:repeat(auto-fill, minmax(290px,1fr));
}
.course-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; box-shadow:var(--shadow); transition:.2s ease;
  display:flex; flex-direction:column;
}
.course-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-lg); border-color:var(--line); }
.course-cover{
  aspect-ratio:16/10; position:relative; display:grid; place-items:center;
  color:#fff; overflow:hidden;
}
.course-cover .num{ font-family:var(--serif); font-size:3.4rem; opacity:.9; }
.course-cover .tag{
  position:absolute; top:12px; left:12px; font-size:.7rem; font-weight:600;
  letter-spacing:.08em; text-transform:uppercase; background:rgba(255,255,255,.92);
  color:var(--ink); padding:.28rem .6rem; border-radius:999px;
}
.course-body{ padding:20px 20px 22px; display:flex; flex-direction:column; flex:1; }
.course-body h3{ margin-bottom:.35rem; }
.course-body p{ font-size:.92rem; color:var(--ink-soft); margin-bottom:1rem; }
.course-meta{ margin-top:auto; display:flex; align-items:center; justify-content:space-between; font-size:.83rem; color:var(--muted); }
.course-meta .dot{ width:4px;height:4px;border-radius:50%;background:var(--muted);display:inline-block;margin:0 .5rem;vertical-align:middle; }

/* Doses: usam a própria cor do curso (cv-5 / cv-6); só a etiqueta muda */
.is-dose .course-cover .tag{ background:var(--ink); color:#fff; }

/* ---------- Como funciona ---------- */
.steps{ display:grid; gap:20px; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); }
.step{ background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:24px; }
.step .n{ width:34px;height:34px;border-radius:50%;background:var(--accent-soft);color:var(--accent-ink);
  display:grid;place-items:center;font-weight:700;font-family:var(--serif);margin-bottom:.9rem; }
.step h3{ font-size:1.05rem; }
.step p{ font-size:.9rem; color:var(--ink-soft); margin:0; }

/* ---------- Faixas de cor para capas ---------- */
.cv-1{ background:linear-gradient(135deg,#2563eb,#1a3f8f); }
.cv-2{ background:linear-gradient(135deg,#dc2626,#8f1818); }
.cv-3{ background:linear-gradient(135deg,#16a34a,#0c6b31); }
.cv-4{ background:linear-gradient(135deg,#ea7317,#9c4a0c); }
.cv-5{ background:linear-gradient(135deg,#7c3aed,#4c1d95); }
.cv-6{ background:linear-gradient(135deg,#0d9488,#0a5e57); }

/* ---------- Cor de cada curso (acento leve para navegação) ---------- */
.cc-1{ --course:#2563eb; --course-soft:#e8effd; }  /* azul */
.cc-2{ --course:#dc2626; --course-soft:#fdecec; }  /* vermelho */
.cc-3{ --course:#16a34a; --course-soft:#e7f6ec; }  /* verde */
.cc-4{ --course:#ea7317; --course-soft:#fdefe1; }  /* laranja */
.cc-5{ --course:#7c3aed; --course-soft:#f1ebfd; }  /* roxo */
.cc-6{ --course:#0d9488; --course-soft:#e3f5f3; }  /* verde-água */
/* faixa colorida no topo dos cards */
.course-card[class*="cc-"], .portal-card[class*="cc-"]{ border-top:4px solid var(--course); }

/* ---------- Footer ---------- */
.footer{ border-top:1px solid var(--line); padding:40px 0; margin-top:40px; color:var(--muted); font-size:.9rem; }
.footer .inner{ display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap; align-items:center; }

/* ---------- Modal / Login card ---------- */
.auth-wrap{ min-height:100vh; display:grid; place-items:center; padding:40px 20px;
  background:radial-gradient(1200px 600px at 50% -10%, #fff, var(--bg)); }
.auth-card{
  width:100%; max-width:420px; background:var(--surface); border:1px solid var(--line);
  border-radius:18px; box-shadow:var(--shadow-lg); padding:38px 34px;
}
.auth-card .brand{ justify-content:center; margin-bottom:1.4rem; }
.auth-card h1{ font-size:1.5rem; text-align:center; }
.auth-card .sub{ text-align:center; color:var(--muted); font-size:.92rem; margin-bottom:1.6rem; }
.field{ margin-bottom:1rem; }
.field label{ display:block; font-size:.82rem; font-weight:600; color:var(--ink-soft); margin-bottom:.35rem; }
.field input{
  width:100%; padding:.78rem .9rem; border:1px solid var(--line); border-radius:var(--radius-sm);
  font-size:.98rem; background:#fff; transition:.15s; font-family:inherit;
}
.field input:focus{ outline:none; border-color:var(--accent); box-shadow:0 0 0 3px var(--accent-soft); }
.alert{ background:#fdecec; border:1px solid #f3c0c0; color:#a12a2a; padding:.7rem .9rem;
  border-radius:var(--radius-sm); font-size:.88rem; margin-bottom:1rem; }
.hint{ font-size:.82rem; color:var(--muted); text-align:center; margin-top:1.2rem; }
.back-link{ display:inline-flex; gap:.4rem; align-items:center; font-size:.88rem; color:var(--muted); margin-bottom:1.2rem; }
.back-link:hover{ color:var(--ink); }

/* ---------- Portal / Dashboard ---------- */
.portal-head{ padding:48px 0 28px; }
.portal-head .hello{ font-size:.9rem; color:var(--muted); }
.progress-overall{ background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:22px 24px; margin-top:18px; display:flex; align-items:center; gap:24px; flex-wrap:wrap; }
.bar{ height:9px; background:var(--line-soft); border-radius:999px; overflow:hidden; flex:1; min-width:160px; }
.bar > i{ display:block; height:100%; background:var(--course, var(--accent)); border-radius:999px; }
.progress-overall b{ font-family:var(--serif); font-size:1.6rem; }

.portal-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  box-shadow:var(--shadow); overflow:hidden; display:flex; flex-direction:column; transition:.2s;
}
.portal-card:hover{ transform:translateY(-3px); box-shadow:var(--shadow-lg); }
.portal-card .cover{ aspect-ratio:16/9; display:grid; place-items:center; color:#fff; }
.portal-card .cover .num{ font-family:var(--serif); font-size:2.6rem; opacity:.92; }
.portal-card .pc-body{ padding:18px 20px 20px; display:flex; flex-direction:column; flex:1; }
.portal-card h3{ font-size:1.05rem; margin-bottom:.5rem; }
.portal-card .pc-meta{ font-size:.82rem; color:var(--muted); margin-bottom:.8rem; }
.portal-card .bar{ margin-bottom:.5rem; }
.portal-card .pc-prog{ font-size:.8rem; color:var(--muted); margin-top:auto; }

/* ---------- Página de curso ---------- */
.course-layout{ display:grid; grid-template-columns:320px 1fr; gap:0; min-height:calc(100vh - 68px); }
.lesson-aside{ background:var(--surface); border-right:1px solid var(--line); padding:24px 18px; overflow-y:auto; }
.lesson-aside .course-title{ font-family:var(--serif); font-size:1.25rem; margin-bottom:.2rem; }
.lesson-aside .course-sub{ font-size:.82rem; color:var(--muted); margin-bottom:1.2rem; }
.lesson-list{ list-style:none; margin:0; padding:0; }
.lesson-list li{ margin-bottom:4px; }
.lesson-list button{
  width:100%; text-align:left; background:transparent; border:1px solid transparent;
  border-radius:var(--radius-sm); padding:.6rem .7rem; cursor:pointer; display:flex; gap:.6rem;
  align-items:flex-start; transition:.14s; color:var(--ink);
}
.lesson-list button:hover{ background:var(--line-soft); }
.lesson-list button.active{ background:var(--course-soft, var(--accent-soft)); border-color:var(--course, #eaddc9); }
.course-layout[class*="cc-"] .lesson-aside{ border-top:3px solid var(--course); }
.course-layout[class*="cc-"] .course-title{ color:var(--course); }
.lesson-list .lx{ flex:0 0 22px; height:22px; border-radius:50%; border:1.5px solid var(--line);
  display:grid; place-items:center; font-size:.7rem; color:var(--muted); margin-top:2px; }
.lesson-list .lx.done{ background:var(--ok); border-color:var(--ok); color:#fff; }
.lesson-list .lt{ font-size:.9rem; line-height:1.35; }
.lesson-list .lt small{ display:block; color:var(--muted); font-size:.76rem; }

.lesson-main{ padding:30px 36px 60px; max-width:900px; }
.player{ aspect-ratio:16/9; background:#000; border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow); }
.player iframe{ width:100%; height:100%; border:0; display:block; }
.player .player-empty{ width:100%; height:100%; display:grid; place-items:center; color:#9aa; text-align:center; padding:20px; font-size:.9rem; }
.lesson-title-row{ display:flex; align-items:flex-start; justify-content:space-between; gap:1rem; margin:24px 0 4px; flex-wrap:wrap; }
.lesson-title-row h1{ font-size:1.7rem; }

.tabs{ display:flex; gap:4px; border-bottom:1px solid var(--line); margin:22px 0 0; }
.tabs button{ background:transparent; border:0; border-bottom:2px solid transparent; padding:.7rem .2rem; margin-right:1.4rem;
  font-weight:600; font-size:.92rem; color:var(--muted); cursor:pointer; }
.tabs button.active{ color:var(--ink); border-color:var(--accent); }
.tab-panel{ padding:22px 0; display:none; }
.tab-panel.active{ display:block; }
.tab-panel p{ color:var(--ink-soft); }

.dl-list{ list-style:none; padding:0; margin:0; }
.dl-list li{ margin-bottom:10px; }
.dl-item{ display:flex; align-items:center; gap:.9rem; padding:.9rem 1rem; border:1px solid var(--line);
  border-radius:var(--radius-sm); background:var(--surface); transition:.15s; }
.dl-item:hover{ border-color:var(--accent); background:#fff; }
.dl-item .ic{ flex:0 0 40px; height:40px; border-radius:9px; background:var(--accent-soft); color:var(--accent-ink);
  display:grid; place-items:center; }
.dl-item .meta{ flex:1; }
.dl-item .meta b{ display:block; font-size:.93rem; }
.dl-item .meta span{ font-size:.8rem; color:var(--muted); }

.lesson-nav{ display:flex; justify-content:space-between; gap:1rem; margin-top:34px; padding-top:22px; border-top:1px solid var(--line); }

.empty-note{ color:var(--muted); font-size:.92rem; background:var(--line-soft); border:1px dashed var(--line);
  padding:1rem 1.1rem; border-radius:var(--radius-sm); }

/* ---------- Responsivo ---------- */
@media (max-width:860px){
  .course-layout{ grid-template-columns:1fr; }
  .lesson-aside{ border-right:0; border-bottom:1px solid var(--line); max-height:none; }
  .lesson-main{ padding:24px 20px 50px; }
  .nav .link{ display:none; }
}
@media (max-width:560px){
  .hero{ padding:56px 0 40px; }
  .hero-stats{ gap:1.4rem; }
  .section{ padding:48px 0; }
}

/* utilitários */
.grid-cards{ display:grid; gap:22px; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); }
.mt-0{margin-top:0}.mb-0{margin-bottom:0}.center{text-align:center}
.badge{ display:inline-block; font-size:.72rem; font-weight:600; letter-spacing:.06em; text-transform:uppercase;
  background:var(--accent-soft); color:var(--accent-ink); padding:.2rem .55rem; border-radius:999px; }

/* =====================================================================
   Banner de promoção (em todas as páginas)
   ===================================================================== */
.banner-slot{ margin:0 0 0; }
.banner-slot .container{ padding-top:18px; padding-bottom:6px; }
.omi-banner{
  display:flex; align-items:center; justify-content:space-between; gap:1.2rem;
  border-radius:var(--radius); padding:20px 26px; color:#fff; overflow:hidden;
  background:linear-gradient(135deg,var(--accent),#1a3f8f); box-shadow:var(--shadow);
  position:relative; background-size:cover; background-position:center; transition:.2s;
}
.omi-banner:hover{ transform:translateY(-2px); box-shadow:var(--shadow-lg); }
.omi-banner::after{ content:""; position:absolute; inset:0; background:rgba(20,16,8,.18); z-index:0; }
.omi-banner > *{ position:relative; z-index:1; }
.omi-banner .ob-text b{ font-family:var(--serif); font-size:1.3rem; display:block; line-height:1.2; }
.omi-banner .ob-text span.sub{ font-size:.92rem; opacity:.92; display:block; margin-top:.2rem; }
.omi-banner .ob-eyebrow{ background:rgba(255,255,255,.92); color:var(--accent-ink); margin-bottom:.5rem; }
.omi-banner .ob-cta{ background:#fff; color:var(--ink); border-color:#fff; white-space:nowrap; flex:0 0 auto; }
.omi-banner .ob-cta:hover{ background:#f3f3f3; }
/* Modo imagem (PNG feito no Canva): mostra a arte inteira + botão flutuante */
.omi-banner.has-img{ display:block; padding:0; background:none; box-shadow:none; }
.omi-banner.has-img::after{ display:none; }
.ob-img{ width:100%; height:auto; display:block; border-radius:var(--radius); box-shadow:var(--shadow); }
.ob-cta-float{ position:absolute; right:16px; bottom:16px; z-index:2; box-shadow:0 4px 14px rgba(20,16,8,.25); }
@media (max-width:620px){
  .omi-banner{ flex-direction:column; align-items:flex-start; text-align:left; }
  .omi-banner .ob-cta{ width:100%; }
}

/* =====================================================================
   Materiais de turma (página /aulas/CODIGO)
   ===================================================================== */
.turma-head{ padding:48px 0 10px; }
.turma-head .badge{ margin-bottom:.6rem; }
.gate-card{ max-width:440px; margin:6vh auto; }
.mat-list{ display:grid; gap:18px; margin-top:8px; }
.mat-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  box-shadow:var(--shadow); overflow:hidden;
}
.mat-card .mc-top{ display:flex; align-items:center; gap:.7rem; padding:16px 20px 0; flex-wrap:wrap; }
.mat-card .mc-date{ font-size:.8rem; font-weight:600; color:var(--accent-ink); }
.mat-card .mc-type{ font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; color:var(--muted);
  border:1px solid var(--line); padding:.12rem .5rem; border-radius:999px; }
.mat-card h3{ padding:6px 20px 0; font-size:1.15rem; }
.mat-card .mc-desc{ padding:2px 20px 0; color:var(--ink-soft); font-size:.94rem; }
.mat-card .mc-media{ padding:14px 20px 20px; }
.mat-card .mc-media img{ border-radius:var(--radius-sm); border:1px solid var(--line); width:100%; }
.mat-card .player{ margin-top:2px; }
.mat-card audio{ width:100%; margin-top:6px; }
.mat-divider{ font-size:.82rem; color:var(--muted); font-weight:600; letter-spacing:.04em;
  text-transform:uppercase; margin:26px 0 4px; }

/* Player de áudio dentro da aula */
.mat-audio{ background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:.9rem 1rem; margin-bottom:10px; }
.mat-audio b{ display:block; font-size:.93rem; margin-bottom:.55rem; }
.mat-audio audio{ width:100%; }