/* PRAXIS — Campus Virtual (LMS) */
:root {
  --lms-navy: #0b1f3a;
  --lms-navy-light: #163a63;
  --lms-gold: #b8933f;
  --lms-bg: #f4f5f7;
  --lms-border: #e1e4ea;
  --lms-ink: #1c2430;
  --lms-ink-soft: #667085;
  --lms-success: #1f7a4d;
  --lms-warn: #a15c00;
  --lms-error: #b3261e;
  --lms-white: #ffffff;
}
* { box-sizing: border-box; }
body.lms-body { margin: 0; font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: var(--lms-bg); color: var(--lms-ink); }
a { text-decoration: none; color: inherit; }
h1, h2, h3, h4 { font-family: 'Source Serif 4', Georgia, serif; color: var(--lms-navy); margin: 0 0 .5em; }

.lms-shell { display: flex; min-height: 100vh; }

/* Sidebar global */
.lms-sidebar { width: 236px; background: var(--lms-navy); color: rgba(255,255,255,.85); flex-shrink: 0; display: flex; flex-direction: column; }
.lms-sidebar .brand { display: flex; align-items: center; gap: .6rem; padding: 1.25rem 1.25rem 1rem; }
.lms-sidebar .brand img { height: 36px; }
.lms-sidebar .brand strong { color: #fff; display: block; font-size: 1rem; }
.lms-sidebar .brand small { font-size: .68rem; color: rgba(255,255,255,.55); text-transform: uppercase; letter-spacing: .04em; }
.lms-global-nav { padding: .5rem 0; flex: 1; }
.lms-global-nav a { display: flex; align-items: center; gap: .75rem; padding: .7rem 1.25rem; font-size: .88rem; font-weight: 500; color: rgba(255,255,255,.72); border-left: 3px solid transparent; }
.lms-global-nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
.lms-global-nav a.is-active { background: rgba(255,255,255,.08); color: #fff; border-color: var(--lms-gold); }
.lms-global-nav a i { width: 18px; text-align: center; }
.lms-sidebar-foot { padding: 1rem 1.25rem 1.25rem; border-top: 1px solid rgba(255,255,255,.12); }
.lms-sidebar-foot a { display: flex; align-items: center; gap: .6rem; padding: .5rem 0; font-size: .84rem; color: rgba(255,255,255,.65); }
.lms-sidebar-foot a:hover { color: #fff; }

.lms-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.lms-topbar { background: var(--lms-white); border-bottom: 1px solid var(--lms-border); padding: .85rem 1.75rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.lms-topbar h1 { font-size: 1.1rem; margin: 0; }
.lms-topbar-right { display: flex; align-items: center; gap: 1.1rem; }
.lms-lang { display: flex; gap: .4rem; font-size: .78rem; font-weight: 700; }
.lms-lang a { color: var(--lms-ink-soft); padding: .2rem .3rem; }
.lms-lang a.is-active { color: var(--lms-navy); }
.lms-notif-btn { position: relative; font-size: 1.1rem; color: var(--lms-ink-soft); }
.lms-notif-dot { position: absolute; top: -4px; right: -6px; background: var(--lms-error); color: #fff; font-size: .62rem; font-weight: 700; border-radius: 20px; padding: 0 .35rem; line-height: 1.4; }
.lms-user { display: flex; align-items: center; gap: .6rem; font-size: .85rem; color: var(--lms-ink-soft); }
.lms-user .avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--lms-navy); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: .8rem; }

.lms-content { padding: 1.75rem; flex: 1; }

/* Sub-nav de curso */
.course-banner { background: var(--lms-navy); color: #fff; padding: 1.25rem 1.75rem; }
.course-banner .eyebrow { color: var(--lms-gold); font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; font-weight: 700; }
.course-banner h1 { color: #fff; font-size: 1.35rem; margin: .2rem 0 0; }
.course-tabs { display: flex; gap: .25rem; background: var(--lms-white); border-bottom: 1px solid var(--lms-border); padding: 0 1.75rem; overflow-x: auto; }
.course-tabs a { display: block; padding: .85rem .9rem; font-size: .84rem; font-weight: 600; color: var(--lms-ink-soft); border-bottom: 3px solid transparent; white-space: nowrap; }
.course-tabs a:hover { color: var(--lms-navy); }
.course-tabs a.is-active { color: var(--lms-navy); border-color: var(--lms-gold); }

/* Tarjetas / paneles */
.lms-card { background: var(--lms-white); border: 1px solid var(--lms-border); border-radius: 10px; padding: 1.5rem; margin-bottom: 1.5rem; }
.lms-card h2 { font-size: 1.05rem; margin-bottom: 1rem; }
.lms-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; margin-bottom: 1.5rem; }
.lms-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.lms-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.stat-box { background: var(--lms-white); border: 1px solid var(--lms-border); border-radius: 10px; padding: 1.4rem; }
.stat-box .num { font-size: 1.9rem; font-weight: 700; color: var(--lms-navy); }
.stat-box .lbl { font-size: .8rem; color: var(--lms-ink-soft); text-transform: uppercase; letter-spacing: .03em; }

.course-tile { background: var(--lms-white); border: 1px solid var(--lms-border); border-radius: 10px; overflow: hidden; display: flex; flex-direction: column; transition: .15s; }
.course-tile:hover { box-shadow: 0 8px 20px rgba(11,31,58,.10); transform: translateY(-2px); }
.course-tile .cover { height: 110px; background: linear-gradient(120deg, var(--lms-navy), var(--lms-navy-light)); position: relative; }
.course-tile .cover img { width: 100%; height: 100%; object-fit: cover; }
.course-tile .body { padding: 1.1rem; flex: 1; display: flex; flex-direction: column; gap: .5rem; }
.course-tile h3 { font-size: 1rem; margin: 0; }
.course-tile .instr { font-size: .8rem; color: var(--lms-ink-soft); }
.progress-bar { height: 7px; background: var(--lms-border); border-radius: 20px; overflow: hidden; }
.progress-bar span { display: block; height: 100%; background: var(--lms-gold); }
.progress-label { font-size: .74rem; color: var(--lms-ink-soft); }

/* Modulos / items */
.module-block { border: 1px solid var(--lms-border); border-radius: 10px; margin-bottom: 1rem; overflow: hidden; background: var(--lms-white); }
.module-head { background: #f8f9fb; padding: .9rem 1.25rem; font-weight: 700; font-size: .92rem; color: var(--lms-navy); display: flex; justify-content: space-between; align-items: center; }
.module-items { list-style: none; margin: 0; padding: 0; }
.module-items li { border-top: 1px solid var(--lms-border); }
.module-items a.item-row { display: flex; align-items: center; gap: .75rem; padding: .8rem 1.25rem; font-size: .88rem; color: var(--lms-ink); }
.module-items a.item-row:hover { background: #fafbfc; }
.item-row i.type-icon { color: var(--lms-gold); width: 18px; text-align: center; }
.item-row .check { margin-left: auto; color: var(--lms-success); }
.item-row .check.pending { color: var(--lms-border); }

/* Formularios */
.lms-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.lms-form-group { display: flex; flex-direction: column; gap: .35rem; margin-bottom: 1.1rem; }
.lms-form-group.full { grid-column: 1 / -1; }
.lms-form-group label { font-weight: 600; font-size: .82rem; color: var(--lms-navy); }
.lms-form-group input, .lms-form-group select, .lms-form-group textarea {
  padding: .65rem .8rem; border: 1.5px solid var(--lms-border); border-radius: 6px; font-family: inherit; font-size: .9rem; width: 100%;
}
.lms-form-group textarea { min-height: 110px; resize: vertical; }

/* Botones */
.btn { display: inline-flex; align-items: center; gap: .4rem; padding: .6rem 1.1rem; border-radius: 6px; font-weight: 600; font-size: .85rem; border: 1.5px solid transparent; cursor: pointer; }
.btn-navy { background: var(--lms-navy); color: #fff; }
.btn-navy:hover { background: var(--lms-navy-light); }
.btn-gold { background: var(--lms-gold); color: var(--lms-navy); }
.btn-outline { background: #fff; border-color: var(--lms-border); color: var(--lms-ink); }
.btn-outline:hover { border-color: var(--lms-navy); }
.btn-danger { background: #fff; border-color: var(--lms-error); color: var(--lms-error); }
.btn-danger:hover { background: var(--lms-error); color: #fff; }
.btn-sm { padding: .4rem .75rem; font-size: .78rem; }
.btn-block { width: 100%; justify-content: center; }

/* Tablas */
.lms-table-wrap { overflow-x: auto; }
table.lms-table { width: 100%; border-collapse: collapse; font-size: .87rem; }
table.lms-table th, table.lms-table td { padding: .7rem .85rem; border-bottom: 1px solid var(--lms-border); text-align: left; }
table.lms-table th { background: #f8f9fb; color: var(--lms-navy); font-weight: 700; font-size: .76rem; text-transform: uppercase; }
table.lms-table td.wrap { white-space: normal; }
table.lms-table input.grade-input { width: 80px; padding: .35rem .5rem; }

.badge { display: inline-block; padding: .25rem .6rem; border-radius: 20px; font-size: .7rem; font-weight: 700; text-transform: uppercase; }
.badge-success { background: #e6f4ea; color: var(--lms-success); }
.badge-warn { background: #fdf1e0; color: var(--lms-warn); }
.badge-muted { background: #eef0f3; color: var(--lms-ink-soft); }
.badge-error { background: #fbeae9; color: var(--lms-error); }
.badge-gold { background: #fbf3e3; color: #8a6a1f; }

.alert { padding: .85rem 1.1rem; border-radius: 8px; font-size: .88rem; margin-bottom: 1.25rem; border-left: 4px solid; }
.alert-success { background: #eaf6ef; border-color: var(--lms-success); color: #145a37; }
.alert-error { background: #fbeae9; border-color: var(--lms-error); color: #82170f; }
.alert-info { background: #e7ecf3; border-color: var(--lms-navy-light); color: var(--lms-navy); }

.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.25rem; flex-wrap: wrap; gap: 1rem; }
.toolbar h1 { margin: 0; font-size: 1.25rem; }

/* Quiz taking */
.quiz-question { border: 1px solid var(--lms-border); border-radius: 10px; padding: 1.25rem; margin-bottom: 1.25rem; background: #fff; }
.quiz-question .qnum { font-size: .78rem; color: var(--lms-ink-soft); text-transform: uppercase; font-weight: 700; margin-bottom: .4rem; }
.quiz-option { display: flex; align-items: flex-start; gap: .6rem; padding: .5rem 0; }
.quiz-option input { margin-top: .3rem; }
.quiz-timer { position: sticky; top: 0; background: var(--lms-gold); color: var(--lms-navy); padding: .6rem 1rem; border-radius: 8px; font-weight: 700; text-align: center; margin-bottom: 1rem; }

/* Discusiones */
.discussion-post { border: 1px solid var(--lms-border); border-radius: 8px; padding: 1rem; margin-bottom: .85rem; background: #fff; }
.discussion-post.is-reply { margin-left: 2rem; background: #fafbfc; }
.post-meta { font-size: .78rem; color: var(--lms-ink-soft); margin-bottom: .4rem; }
.post-meta strong { color: var(--lms-navy); }

/* Login */
.lms-login-shell { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--lms-navy); padding: 1.5rem; }
.lms-login-card { background: #fff; border-radius: 12px; padding: 2.5rem; width: 100%; max-width: 400px; text-align: center; }
.lms-login-card img { height: 56px; margin-bottom: 1rem; }
.lms-login-card h1 { font-size: 1.15rem; margin-bottom: .3rem; }
.lms-login-card .sub { font-size: .82rem; color: var(--lms-ink-soft); margin-bottom: 1.5rem; }
.lms-login-card form { text-align: left; }

@media (max-width: 960px) {
  .lms-shell { flex-direction: column; }
  .lms-sidebar { width: 100%; flex-direction: row; align-items: center; overflow-x: auto; }
  .lms-sidebar .brand { padding: .75rem 1rem; flex-shrink: 0; }
  .lms-global-nav { display: flex; padding: 0; flex: none; }
  .lms-global-nav a { border-left: none; border-bottom: 3px solid transparent; white-space: nowrap; }
  .lms-global-nav a.is-active { border-color: var(--lms-gold); }
  .lms-sidebar-foot { display: none; }
  .lms-grid, .lms-grid.cols-3, .lms-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
  .lms-form-grid { grid-template-columns: 1fr; }
  .lms-content { padding: 1.1rem; }
}