:root{--primary:#2563eb;--primary-light:#dbeafe;--secondary:#64748b;--success:#16a34a;--danger:#dc2626;--warning:#f59e0b;--bg:#f1f5f9;--card:#ffffff;--border:#e2e8f0;--text:#0f172a;--muted:#64748b;--shadow:0 8px 24px rgba(15,23,42,.08)}body{background:var(--bg);font-family:Inter,sans-serif}.page-title{font-size:2rem;font-weight:800;color:var(--text)}.page-subtitle{color:var(--muted);font-size:.95rem}.summary-card{background:linear-gradient(135deg,#2563eb 0,#1d4ed8 100%);color:#fff;border-radius:22px;padding:24px;box-shadow:var(--shadow);margin-bottom:28px}.summary-value{font-size:2.8rem;font-weight:800;line-height:1}.summary-label{font-size:.85rem;opacity:.9;text-transform:uppercase;letter-spacing:.5px}.semester-card{background:var(--card);border-radius:22px;overflow:hidden;border:1px solid var(--border);margin-bottom:24px;box-shadow:var(--shadow)}.semester-header{background:#f8fafc;padding:18px 22px;border-bottom:1px solid var(--border)}.semester-title{font-size:1.1rem;font-weight:700;color:var(--text)}.semester-meta{font-size:.88rem;color:var(--muted);font-weight:600}.semester-body{padding:20px}.table-header{background:#f8fafc;border-radius:14px;padding:12px 14px;margin-bottom:12px;font-size:.72rem;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.6px}.course-row{padding:10px 0;border-bottom:1px solid #f1f5f9}.course-row:last-child{border-bottom:none}.form-control,.form-select{border-radius:12px;border:1px solid #dbe2ea;height:44px;font-size:.92rem;box-shadow:none!important}.form-control:focus,.form-select:focus{border-color:#60a5fa}.btn-add-class{background:0 0;color:var(--primary);border:none;font-weight:700;font-size:.92rem;padding:10px 0}.btn-add-class:hover{color:#1d4ed8}.btn-remove{width:38px;height:38px;border-radius:12px;border:none;background:rgba(220,38,38,.1);color:var(--danger);transition:.2s}.btn-remove:hover{background:var(--danger);color:#fff}.header-action-btn{width:34px;height:34px;border-radius:10px;border:none;background:#fff;color:var(--muted);border:1px solid var(--border)}.header-action-btn:hover{background:var(--primary);color:#fff}.bottom-actions{position:sticky;bottom:0;background:rgba(241,245,249,.95);backdrop-filter:blur(10px);padding:18px 0;z-index:20}.btn-main{height:52px;border-radius:16px;font-weight:700;border:none}.btn-primary-custom{background:linear-gradient(135deg,#2563eb 0,#1d4ed8 100%);color:#fff}.btn-light-custom{background:#fff;border:1px solid var(--border);color:var(--text)}.stats-box{background:rgba(255,255,255,.12);border-radius:16px;padding:14px}.stats-label{font-size:.8rem;opacity:.9}.stats-value{font-size:1.4rem;font-weight:800}@media(max-width:768px){.summary-value{font-size:2rem}.course-row .col-md-1,.course-row .col-md-2,.course-row .col-md-3,.course-row .col-md-5{margin-bottom:10px}}