/* =============================
   ITlearn360 — Modern SaaS Light (Pastel Sections)
   Single source of truth for ALL pages
   ============================= */

   :root{
    /* Pastels (from your image) */
    --p1: #FDFDFD; /* image shows #FDFDF (invalid). Using #FDFDFD */
    --p2: #FCF7DE;
    --p3: #DEFDE0;
    --p4: #DEF3FD;
    --p5: #F0DEFD;
  
    /* App base */
    --bg: #f6f8fc;
    --bg2: #ffffff;
  
    --surface: rgba(255,255,255,.72);
    --card: rgba(255,255,255,.92);
  
    --text: #0f172a;
    --muted: rgba(15,23,42,.62);
    --soft: rgba(15,23,42,.48);
  
    --border: rgba(15,23,42,.10);
    --border2: rgba(15,23,42,.08);
  
    --primary: #0f172a;
    --primaryHover: #0b1220;
    --primaryText: #fff;
  
    --r-xl: 28px;
    --r-lg: 22px;
    --r-md: 16px;
    --r-sm: 14px;
  
    --shadow-xs: 0 1px 2px rgba(2,6,23,.06);
    --shadow-sm: 0 10px 26px rgba(2,6,23,.08);
    --shadow-md: 0 18px 60px rgba(2,6,23,.12);
  
    --ring: rgba(59,130,246,.22);
  }
  
  html, body { height: 100%; 
    font-family: "Google Sans", sans-serif;
    font-optical-sizing: auto;
    font-variation-settings:
    "GRAD" 0;
  }
  
  body{
    background:
      radial-gradient(900px 420px at 12% 10%, rgba(59,130,246,.08), transparent 60%),
      radial-gradient(900px 420px at 88% 12%, rgba(167,139,250,.08), transparent 60%),
      radial-gradient(1000px 520px at 55% 92%, rgba(34,197,94,.06), transparent 60%),
      linear-gradient(180deg, var(--bg), var(--bg2));
    color: var(--text);
  }
  
  /* ===== Header / Nav ===== */
  .lms-header{
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,.78);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border2);
  }
  
  .lms-brand{ display:flex; align-items:baseline; gap:10px; text-decoration:none; }
  .lms-brandMark{ font-weight: 900; letter-spacing: -0.02em; color: var(--text); }
  .lms-brandTag{ font-size: 12px; color: var(--muted); font-weight: 800; display:none; }
  @media (min-width:768px){ .lms-brandTag{ display:inline; } }
  
  .lms-nav{ display:flex; align-items:center; gap:6px; }
  .lms-navLink{
    text-decoration:none;
    padding: 8px 10px;
    border-radius: 12px;
    color: rgba(15,23,42,.78);
    font-weight: 900;
  }
  .lms-navLink:hover{ background: rgba(15,23,42,.05); color: rgba(15,23,42,.95); }
  
  /* ===== Containers ===== */
  .lms-shell{
    width:100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 22px 16px;
  }
  @media (min-width: 768px){ .lms-shell{ padding: 10px 20px; } }
  @media (min-width: 1024px){ .lms-shell{ padding: 10px 24px; } }
  
  /* ===== Sections (with pastel backgrounds) ===== */
  .lms-section{
    border: 1px solid var(--border2);
    border-radius: var(--r-xl);
    padding: 18px;
    box-shadow: 0 18px 60px rgba(2,6,23,.06);
  }
  @media (min-width:768px){ .lms-section{ padding: 22px; } }
  
  .lms-p1{ background: var(--p1); }
  .lms-p2{ background: var(--p2); }
  .lms-p3{ background: var(--p3); }
  .lms-p4{ background: var(--p4); }
  .lms-p5{ background: var(--p5); }
  
  /* ===== Cards ===== */
  .lms-card{
    background: linear-gradient(180deg, var(--card), rgba(248,250,252,.92));
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    box-shadow: var(--shadow-sm);
  }
  .lms-hovercard{
    transition: transform .16s ease, box-shadow .16s ease, filter .16s ease;
  }
  .lms-hovercard:hover{
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    filter: brightness(1.01);
  }
  
  .lms-subcard{
    background: rgba(255,255,255,.82);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    box-shadow: 0 12px 24px rgba(2,6,23,.06);
  }
  
  /* ===== Text helpers ===== */
  .lms-muted{ color: var(--muted); }
  .lms-soft{ color: var(--soft); }
  .lms-link{ color: var(--text); text-decoration:none; }
  .lms-link:hover{ text-decoration: underline; }
  
  /* ===== Chips ===== */
  .lms-chip{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(248,250,252,.92);
    color: rgba(15,23,42,.82);
    font-size: 12px;
    font-weight: 900;
    white-space: nowrap;
  }
  
  /* ===== Buttons ===== */
  .lms-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:.5rem;
    padding: 10px 14px;
    border-radius: var(--r-sm);
    border: 1px solid rgba(2,6,23,.10);
    background: var(--primary);
    color: var(--primaryText);
    font-weight: 900;
    box-shadow: var(--shadow-xs);
    transition: transform .12s ease, box-shadow .12s ease, opacity .12s ease, background .12s ease;
  }
  .lms-btn:hover{ transform: translateY(-1px); box-shadow: var(--shadow-sm); background: var(--primaryHover); }
  .lms-btn:active{ transform: translateY(0); opacity:.92; }
  
  .lms-btn-secondary{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:.5rem;
    padding: 10px 14px;
    border-radius: var(--r-sm);
    border: 1px solid var(--border);
    background: rgba(255,255,255,.82);
    color: var(--text);
    font-weight: 900;
    box-shadow: var(--shadow-xs);
    transition: transform .12s ease, box-shadow .12s ease, background-color .12s ease;
  }
  .lms-btn-secondary:hover{
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
    background: rgba(255,255,255,.98);
  }
  
  /* ===== Inputs ===== */
  .lms-input, .lms-select{
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    padding: 11px 12px;
    background: rgba(255,255,255,.92);
    outline: none;
    box-shadow: var(--shadow-xs);
  }
  .lms-input:focus, .lms-select:focus{
    box-shadow: 0 0 0 4px var(--ring), var(--shadow-sm);
    background: rgba(255,255,255,.99);
  }
  
  /* ===== Hero (modern, light, grid overlay) ===== */
  .hero{
    position: relative;
    overflow: hidden;
    border-radius: calc(var(--r-xl) + 2px);
    border: 1px solid var(--border2);
    background:
      radial-gradient(950px 420px at 12% 20%, rgba(59,130,246,.10), transparent 60%),
      radial-gradient(950px 420px at 88% 30%, rgba(167,139,250,.10), transparent 60%),
      linear-gradient(180deg, rgba(255,255,255,.88), rgba(248,250,252,.95));
    box-shadow: var(--shadow-md);
  }
  .hero::after{
    content:"";
    position:absolute; inset:0;
    opacity:.10;
    background-image:
      linear-gradient(rgba(15,23,42,.20) 1px, transparent 1px),
      linear-gradient(90deg, rgba(15,23,42,.20) 1px, transparent 1px);
    background-size: 44px 44px;
    pointer-events:none;
  }
  .hero > *{ position: relative; z-index: 1; }
  
  /* ===== Loader ===== */
  .lms-loaderOverlay{
    position: fixed;
    inset: 0;
    display:flex;
    align-items:center;
    justify-content:center;
    background: rgba(15,23,42,.10);
    backdrop-filter: blur(6px);
    z-index: 9999;
  }
  .lms-loaderCard{
    background: rgba(255,255,255,.94);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow-md);
    padding: 16px 18px;
    display:flex;
    align-items:center;
    gap:12px;
  }
  .lms-spinner{
    height: 18px; width: 18px;
    border-radius: 999px;
    border: 2px solid rgba(15,23,42,.18);
    border-top-color: rgba(15,23,42,.85);
    animation: spin 0.8s linear infinite;
  }
  @keyframes spin{ to{ transform: rotate(360deg);} }
  .lms-loaderTitle{ font-weight: 900; }
  .lms-loaderSub{ font-size: 12px; color: var(--muted); }
  
  /* ===== Prose (DOC content) ===== */
  .lms-prose h1,.lms-prose h2,.lms-prose h3{
    font-weight: 900;
    letter-spacing: -0.01em;
    margin-top: 1.2rem;
    margin-bottom: .45rem;
    color: var(--text);
  }
  .lms-prose p{
    margin: .75rem 0;
    line-height: 1.75;
    color: rgba(15,23,42,.84);
  }
  /* Player tabs */
.lms-tab{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.85);
  font-weight: 900;
  color: rgba(15,23,42,.80);
  box-shadow: var(--shadow-xs);
  transition: transform .12s ease, box-shadow .12s ease, background-color .12s ease;
}
.lms-tab:hover{ transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.lms-tab-active{
  background: var(--primary);
  color: var(--primaryText);
  border-color: rgba(2,6,23,.10);
}

.lms-toolbar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top: 14px;

  padding: 12px 14px;
  border-radius: 18px;
  border: 1px solid var(--border2);
  background: rgba(255,255,255,.80);
  box-shadow: 0 10px 28px rgba(2,6,23,.06);
}

/* Smaller controls */
.lms-btn-sm{
  padding: 9px 12px !important;
  font-size: 13px;
  border-radius: 14px !important;
  line-height: 1.1;
  height: 40px;
  white-space: nowrap;
}

/* dropdown should match button height */
.lms-select-sm{
  height: 40px;
  padding: 8px 12px;
  font-size: 13px;
  border-radius: 14px;
  min-width: 220px;
}

/* Make "Mark complete" never huge on wide screens */
@media (min-width: 1024px){
  .lms-select-sm{ min-width: 260px; }
}

/* Mobile: stack cleanly */
@media (max-width: 640px){
  .lms-toolbar{
    align-items: stretch;
  }
  .lms-toolbar > div{
    width:100%;
    justify-content: space-between;
  }
  .lms-select-sm{
    width: 100%;
    min-width: unset;
  }
}
/* =============================
   Sidebar: Course tree polish
   ============================= */

   .lms-tree {
    --treePad: 10px;
  }
  
  .lms-tree details {
    overflow: hidden;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: rgba(255,255,255,.70);
    box-shadow: 0 10px 24px rgba(2,6,23,.06);
  }
  
  .lms-tree details + details { margin-top: 10px; }
  
  .lms-tree summary {
    list-style: none;
    cursor: pointer;
    padding: 12px 12px;
    user-select: none;
  }
  .lms-tree summary::-webkit-details-marker { display: none; }
  
  .lms-tree summary:hover {
    background: rgba(15,23,42,.03);
  }
  
  .lms-tree details[open] summary {
    background: rgba(15,23,42,.03);
    border-bottom: 1px solid rgba(15,23,42,.06);
  }
  
  .lms-modHead {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
  }
  
  .lms-modTitle {
    font-weight: 900;
    font-size: 14px;
    line-height: 1.2;
    color: rgba(15,23,42,.92);
  }
  
  .lms-modMeta {
    margin-top: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }
  
  .lms-treeBody {
    padding: 10px 10px 12px;
    background: linear-gradient(180deg, rgba(248,250,252,.75), rgba(255,255,255,.65));
  }
  
  .lms-treeSectionTitle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 11px;
    letter-spacing: .08em;
    text-transform: uppercase;
    font-weight: 900;
    color: rgba(15,23,42,.52);
    margin: 6px 2px 8px;
  }
  
  .lms-lessonList { display: grid; gap: 6px; }
  
  .lms-itemRow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 10px;
    border-radius: 14px;
    border: 1px solid transparent;
    background: rgba(255,255,255,.80);
    transition: transform .12s ease, box-shadow .12s ease, background .12s ease, border-color .12s ease;
  }
  
  .lms-itemRow:hover {
    background: rgba(255,255,255,.98);
    border-color: rgba(15,23,42,.10);
    box-shadow: 0 10px 20px rgba(2,6,23,.06);
    transform: translateY(-1px);
  }
  
  .lms-itemRowActive {
    border-color: rgba(15,23,42,.14) !important;
    background: rgba(15,23,42,.03) !important;
    position: relative;
  }
  .lms-itemRowActive::before {
    content: "";
    position: absolute;
    left: 6px;
    top: 10px;
    bottom: 10px;
    width: 4px;
    border-radius: 999px;
    background: rgba(15,23,42,.85);
  }
  
  .lms-itemTitle {
    font-size: 13px;
    font-weight: 800;
    color: rgba(15,23,42,.88);
    line-height: 1.2;
  }
  
  .lms-itemSub {
    font-size: 11px;
    color: rgba(15,23,42,.55);
    margin-top: 2px;
  }
  
  .lms-dot {
    width: 8px; height: 8px;
    border-radius: 999px;
    background: rgba(15,23,42,.20);
  }
  .lms-dotDone { background: rgba(34,197,94,.85); } /* green */
  .lms-dotActive { background: rgba(15,23,42,.85); }
  
  .lms-sideBtn {
    padding: 8px 10px;
    border-radius: 12px;
    border: 1px solid rgba(15,23,42,.12);
    background: rgba(255,255,255,.85);
    font-weight: 900;
    font-size: 12px;
  }
  .lms-sideBtn:hover { background: rgba(255,255,255,.98); }
  
  .lms-sidePill {
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid rgba(15,23,42,.10);
    background: rgba(255,255,255,.80);
    font-size: 12px;
    font-weight: 900;
    color: rgba(15,23,42,.78);
  }