#root{min-height:100vh}body{margin:0;background:#f5f1e8;color:#1f2937;font-family:Georgia,Times New Roman,serif}a{color:inherit}.app-shell{min-height:100vh}.app-header{position:sticky;top:0;z-index:10;padding:1.25rem 1.5rem;background:rgba(245,241,232,.94);border-bottom:1px solid rgba(146,133,111,.25);backdrop-filter:blur(12px)}.app-main{flex:1;padding:1.5rem}.study-guide-layout{width:100%;align-items:flex-start}.study-guide-sidebar{flex:0 0 19rem}.study-guide-sidebar-inner{position:sticky;top:6.5rem;max-height:calc(100vh - 8rem);padding:1.25rem;overflow-y:auto;border:1px solid rgba(146,133,111,.25);border-radius:1rem;background:rgba(255,251,243,.92);box-shadow:0 20px 45px #57462e14}.study-guide-sidebar-label{margin-bottom:.5rem;color:#6b7280;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em}.study-guide-content{min-width:0;flex:1;max-width:72rem}.study-guide-hero{margin-bottom:2rem;padding:2rem;border:1px solid rgba(146,133,111,.25);border-radius:1.25rem;background:radial-gradient(circle at top left,rgba(14,116,144,.08),transparent 35%),linear-gradient(135deg,rgba(255,251,243,.98),rgba(250,244,232,.94))}.study-guide-eyebrow{margin-bottom:.5rem;color:#0f766e;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em}.study-guide-section{padding:2rem;border:1px solid rgba(146,133,111,.22);border-radius:1.25rem;background:rgba(255,251,243,.96);box-shadow:0 18px 40px #57462e0d;scroll-margin-top:7rem}.study-guide-list{margin-top:0}.study-guide-table-wrap{margin:1.5rem 0;overflow-x:auto}.study-guide-table{width:100%;border-collapse:collapse;background:#fffdf8}.study-guide-table th,.study-guide-table td{padding:.85rem 1rem;border:1px solid rgba(146,133,111,.2);text-align:left;vertical-align:top}.study-guide-table th{background:#ece4d6;font-weight:700}.study-guide-image{display:block;width:auto;max-width:min(100%,15rem);height:auto;margin:1rem auto}.header-logo{height:5rem;width:auto}.splash{min-height:calc(100vh - 6rem);padding:2rem 1rem}.splash-card{display:flex;flex-direction:column;align-items:center;max-width:38rem;padding:3rem 2.5rem;border:1px solid rgba(146,133,111,.25);border-radius:1.5rem;background:radial-gradient(circle at top left,rgba(14,116,144,.07),transparent 40%),radial-gradient(circle at bottom right,rgba(14,116,144,.05),transparent 40%),linear-gradient(160deg,rgba(255,251,243,.98),rgba(250,244,232,.94));box-shadow:0 24px 50px #57462e1a}.splash-logo{width:auto;max-width:20rem;height:auto}.splash-description{margin-bottom:2rem;color:#4b5563;font-size:1.05rem;line-height:1.75;text-align:center}.splash-actions{width:100%;justify-content:center;margin-bottom:1.5rem}.splash-btn{min-width:10rem}.splash-hint{color:#6b7280;font-size:.85rem;text-align:center}.splash-hint a{color:#0f766e;font-weight:600;text-decoration:underline;text-underline-offset:2px}.splash-hint a:hover{color:#0d9488}@media (max-width: 62rem){.app-main{padding:1rem}.splash-card{padding:2rem 1.5rem}.study-guide-section,.study-guide-hero{padding:1.25rem}}