:root{
    --navy:#121f47; --navy-2:#1b51a4;
    --teal:#00b0ac; --teal-dark:#008f8c; --teal-light:#e0f7f6;
    --gray-50:#F8FAFC; --gray-100:#F1F5F9; --gray-200:#E2E8F0;
    --gray-300:#CBD5E1; --gray-400:#94A3B8; --gray-500:#64748B; --gray-700:#334155;
    --cat-tech-bg:#4cb3f8; --cat-tech-text:#16315e; --cat-tech-dot:#0047c7;
    --cat-mand-bg:#ef8563; --cat-mand-text:#16315e; --cat-mand-dot:#f5ba42;
    --cat-lang-bg:#8ff9a7; --cat-lang-text:#16315e; --cat-lang-dot:#51ac70;
    --cat-soft-bg:#aefbf4; --cat-soft-text:#16315e; --cat-soft-dot:#5fd1c1;
    --cat-other-bg:#d9c6fb; --cat-other-text:#16315e; --cat-other-dot:#7c3aed;
    --shadow-sm:0 1px 2px rgba(18,31,71,.06);
    --shadow:0 4px 16px rgba(18,31,71,.08);
    --shadow-lg:0 12px 32px rgba(18,31,71,.16);
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html,body{font-family:'Lexend Deca',system-ui,sans-serif;color:var(--navy);background:var(--gray-50);min-height:100vh;}
  button{font-family:inherit;cursor:pointer;border:none;}
  a{color:var(--teal-dark);}
  header.hero{
    background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 100%);
    color:#fff;padding:36px 24px 32px;text-align:center;
  }
  header.hero .hero-logo{width:40px;height:auto;margin:0 auto 14px;display:block;}
  header.hero .badge{
    display:inline-block;background:rgba(0,176,172,.25);color:#ffffff;
    padding:5px 14px;border-radius:20px;font-size:11px;letter-spacing:1.5px;text-transform:uppercase;font-weight:500;margin-bottom:12px;
  }
  header.hero h1{font-size:28px;font-weight:600;margin-bottom:6px;}
  header.hero p{color:var(--gray-300);font-size:14px;font-weight:300;}
  main{max-width:1280px;margin:-20px auto 40px;padding:0 24px;}
  .panel{background:#fff;border-radius:16px;box-shadow:var(--shadow);padding:22px;margin-bottom:24px;}
  .panel h2.section-title{font-size:18px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:10px;}
  .panel h2.section-title::before{content:"";width:4px;height:18px;background:var(--teal);border-radius:2px;}
  .toolbar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;margin-bottom:18px;}
  .month-nav{display:flex;align-items:center;gap:12px;}
  .month-nav h2{font-size:20px;font-weight:600;min-width:170px;text-align:center;}
  .nav-btn{background:var(--gray-100);width:36px;height:36px;border-radius:8px;font-size:16px;color:var(--navy);transition:.2s;}
  .nav-btn:hover{background:var(--gray-200);}
  .calendar{border-radius:12px;overflow:hidden;border:1px solid var(--gray-200);}
  .cal-head,.cal-body{display:grid;grid-template-columns:repeat(7,1fr);}
  .cal-head>div{padding:11px 8px;text-align:center;font-size:12px;font-weight:600;color:var(--navy);text-transform:uppercase;letter-spacing:.5px;background:var(--gray-50);border-bottom:1px solid var(--gray-200);}
  .cal-head>div.weekend{color:var(--gray-400);}
  .day{
    min-height:108px;padding:8px;border-right:1px solid var(--gray-100);border-bottom:1px solid var(--gray-100);
    cursor:pointer;transition:.15s;position:relative;display:flex;flex-direction:column;gap:4px;
  }
  .day:hover{background:var(--gray-50);}
  .day:nth-child(7n){border-right:none;}
  .day.other-month{background:#FAFBFC;cursor:default;}
  .day.other-month:hover{background:#FAFBFC;}
  .day.empty-day{cursor:default;}
  .day.today .daynum{background:var(--teal);color:#fff;}
  .daynum{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;font-size:13px;font-weight:500;}
  .day.weekend .daynum{color:var(--gray-400);}
  .day.other-month .daynum{color:var(--gray-300);}
  .pill{font-size:11px;padding:3px 8px;border-radius:6px;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center;gap:4px;}
  .pill::before{content:"";width:5px;height:5px;border-radius:50%;flex-shrink:0;}
  .pill.cat-technical{background:var(--cat-tech-bg);color:var(--cat-tech-text);}
  .pill.cat-technical::before{background:var(--cat-tech-dot);}
  .pill.cat-mandatory{background:var(--cat-mand-dot);color:var(--cat-mand-text);}
  .pill.cat-mandatory::before{background:var(--cat-mand-text);}
  .pill.cat-language{background:var(--cat-lang-bg);color:var(--cat-lang-text);}
  .pill.cat-language::before{background:var(--cat-lang-dot);}
  .pill.cat-soft-skills{background:var(--cat-soft-bg);color:var(--cat-soft-text);}
  .pill.cat-soft-skills::before{background:var(--cat-soft-dot);}
  .pill.cat-other{background:var(--cat-other-bg);color:var(--cat-other-text);}
  .pill.cat-other::before{background:var(--cat-other-dot);}
  .more-tag{font-size:10px;color:var(--gray-500);padding:0 4px;}
  .legend-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;align-items:center;}
  .legend-row .lbl{font-size:12px;color:var(--gray-500);font-weight:500;margin-right:4px;}
  .legend-chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:7px;font-size:12px;font-weight:500;}
  .legend-chip.cat-technical{background:var(--cat-tech-bg);color:var(--cat-tech-text);}
  .legend-chip.cat-mandatory{background:var(--cat-mand-dot);color:var(--cat-mand-text);}
  .legend-chip.cat-language{background:var(--cat-lang-bg);color:var(--cat-lang-text);}
  .legend-chip.cat-soft-skills{background:var(--cat-soft-bg);color:var(--cat-soft-text);}
  .legend-chip.cat-other{background:var(--cat-other-bg);color:var(--cat-other-text);}
  .card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
  .course-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--gray-200);display:flex;flex-direction:column;transition:.2s;cursor:pointer;}
  .course-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);}
  .card-header{padding:8px 14px;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:#fff;}
  .card-header.cat-technical{background:var(--cat-tech-dot);}
  .card-header.cat-mandatory{background:var(--cat-mand-dot);color:var(--cat-mand-text);}
  .card-header.cat-language{background:var(--cat-lang-dot);}
  .card-header.cat-soft-skills{background:var(--cat-soft-dot);}
  .card-header.cat-other{background:var(--cat-other-dot);}
  .card-body{padding:14px;display:flex;flex-direction:column;gap:8px;flex:1;}
  .card-name{font-size:14px;font-weight:600;color:var(--navy);line-height:1.35;margin-bottom:4px;}
  .card-info{font-size:12px;color:var(--gray-700);display:flex;align-items:flex-start;gap:6px;line-height:1.45;}
  .card-info .ic{flex-shrink:0;width:14px;text-align:center;color:var(--gray-500);}
  .card-info a{word-break:break-all;color:var(--teal-dark);text-decoration:none;}
  .card-info a:hover{text-decoration:underline;}
  .empty-cards{grid-column:1/-1;text-align:center;padding:30px;color:var(--gray-500);font-size:13px;}
  .modal-backdrop{position:fixed;inset:0;background:rgba(18,31,71,.55);z-index:100;display:none;align-items:flex-start;justify-content:center;padding:24px;overflow-y:auto;}
  .modal-backdrop.show{display:flex;}
  .modal{background:#fff;border-radius:16px;width:100%;max-width:620px;box-shadow:var(--shadow-lg);margin:auto;animation:slideIn .25s ease;}
  @keyframes slideIn{from{opacity:0;transform:translateY(-20px);}to{opacity:1;transform:translateY(0);}}
  .modal-head{padding:20px 24px;border-bottom:1px solid var(--gray-200);display:flex;justify-content:space-between;align-items:center;gap:12px;}
  .modal-head h3{font-size:17px;font-weight:600;flex:1;}
  .modal-close{background:transparent;font-size:24px;color:var(--gray-500);width:32px;height:32px;border-radius:8px;transition:.2s;flex-shrink:0;}
  .modal-close:hover{background:var(--gray-100);}
  .modal-body{padding:24px;max-height:calc(100vh - 200px);overflow-y:auto;}
  .modal-course-item{padding:14px;border:1px solid var(--gray-200);border-radius:10px;margin-bottom:10px;cursor:pointer;transition:.15s;}
  .modal-course-item:hover{border-color:var(--teal);background:var(--gray-50);}
  .modal-course-item .name{font-weight:600;font-size:14px;margin-bottom:6px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
  .modal-course-item .meta{font-size:12px;color:var(--gray-500);}
  .badge{display:inline-block;padding:2px 8px;border-radius:5px;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.4px;}
  .badge.cat-technical{background:var(--cat-tech-bg);color:var(--cat-tech-text);}
  .badge.cat-mandatory{background:var(--cat-mand-bg);color:var(--cat-mand-text);}
  .badge.cat-language{background:var(--cat-lang-bg);color:var(--cat-lang-text);}
  .badge.cat-soft-skills{background:var(--cat-soft-bg);color:var(--cat-soft-text);}
  .badge.cat-other{background:var(--cat-other-bg);color:var(--cat-other-text);}
  .detail-row{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--gray-100);font-size:13px;}
  .detail-row:last-child{border-bottom:none;}
  .detail-row .lbl{min-width:130px;color:var(--gray-500);font-weight:500;flex-shrink:0;}
  .detail-row .val{flex:1;color:var(--gray-700);}
  .detail-row .val a{word-break:break-all;}
  .format-chip{display:inline-block;background:var(--teal-light);color:var(--teal-dark);padding:3px 10px;border-radius:6px;font-size:11px;font-weight:500;margin:2px 4px 2px 0;}
  footer{text-align:center;padding:20px;color:var(--gray-500);font-size:12px;}
  .empty{text-align:center;padding:36px 20px;color:var(--gray-500);font-size:13px;}
  .spinner{display:inline-block;width:18px;height:18px;border:2px solid var(--gray-200);border-top-color:var(--teal);border-radius:50%;animation:spin .8s linear infinite;}
  @keyframes spin{to{transform:rotate(360deg);}}
  @media (max-width:1024px){
    .card-grid{grid-template-columns:repeat(2,1fr);}
  }
  @media (max-width:640px){
    header.hero{padding:24px 16px 22px;}
    header.hero h1{font-size:21px;}
    main{padding:0 12px;margin-top:-16px;}
    .panel{padding:12px;}
    .toolbar{gap:10px;}
    .nav-btn{width:40px;height:40px;font-size:18px;}
    .day{min-height:58px;padding:4px 3px;gap:3px;}
    .daynum{width:22px;height:22px;font-size:12px;}
    /* Calendar cells: pills collapse into colour dots on mobile, full text moved to Day Modal */
    .pill{font-size:0;padding:0;gap:0;background:transparent!important;line-height:0;}
    .pill::before{width:7px;height:7px;margin:0;}
    .more-tag{font-size:9px;width:100%;}
    .month-nav h2{font-size:16px;min-width:112px;}
    .month-nav{gap:8px;}
    .cal-head>div{font-size:9px;padding:7px 2px;}
    .card-grid{grid-template-columns:1fr;}
    .detail-row{flex-direction:column;gap:2px;}
    .detail-row .lbl{min-width:auto;}
    /* Modals go full-screen on mobile for easier reading/scrolling */
    .modal-backdrop{padding:0;align-items:stretch;}
    .modal{max-width:100%;height:100%;border-radius:0;margin:0;display:flex;flex-direction:column;animation:slideUpMobile .2s ease;}
    .modal-head{padding:16px;flex-shrink:0;}
    .modal-close{width:40px;height:40px;font-size:26px;}
    .modal-body{padding:16px;max-height:none;flex:1;}
    .modal-course-item{padding:14px 12px;}
    .legend-row{gap:8px;}
    .legend-chip{padding:5px 10px;font-size:11px;}
  }
  @keyframes slideUpMobile{from{opacity:0;transform:translateY(24px);}to{opacity:1;transform:translateY(0);}}