:root{--color-bg: #f4f1ea;--color-surface: #ffffff;--color-primary: #8b3a3a;--color-primary-dark: #662b2b;--color-accent: #c9a063;--color-text: #2c2c2c;--color-text-light: #555555;--color-border: #dcdcdc;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--radius: 8px;--font-serif: "Georgia", "Times New Roman", serif;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}[data-theme=dark]{--color-bg: #1a1a1a;--color-surface: #2d2d2d;--color-primary: #c9a063;--color-primary-dark: #a38045;--color-accent: #8b3a3a;--color-text: #e0e0e0;--color-text-light: #a0a0a0;--color-border: #404040}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-text);line-height:1.6;transition:background-color .3s,color .3s}h1,h2,h3,h4{font-family:var(--font-serif);color:var(--color-primary);margin-bottom:.5em}a{text-decoration:none;color:inherit}button{cursor:pointer;font-family:inherit}.app-container{max-width:1200px;margin:0 auto;padding:20px;min-height:100vh;display:flex;flex-direction:column}header{display:flex;justify-content:space-between;align-items:center;padding:20px 0;border-bottom:2px solid var(--color-primary);margin-bottom:30px}.logo{font-size:1.5rem;font-weight:700;font-family:var(--font-serif);display:flex;align-items:center;gap:10px}.controls{display:flex;gap:10px;align-items:center}.btn{padding:8px 16px;border:none;border-radius:var(--radius);background:var(--color-primary);color:#fff;font-weight:700;transition:background .2s}.btn:hover{background:var(--color-primary-dark)}.btn-outline{background:transparent;border:2px solid var(--color-primary);color:var(--color-primary)}.btn-outline:hover{background:var(--color-primary);color:#fff}nav{display:flex;gap:20px;margin-bottom:20px;overflow-x:auto;padding-bottom:10px}.nav-item{padding:8px 16px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:20px;white-space:nowrap;cursor:pointer;transition:all .2s}.nav-item.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-bottom:40px}.card{background:var(--color-surface);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border:1px solid var(--color-border);display:flex;flex-direction:column}.card h3{font-size:1.25rem}.card p{color:var(--color-text-light);margin-bottom:20px;flex-grow:1}.progress-bar{height:8px;background:var(--color-border);border-radius:4px;margin:15px 0;overflow:hidden}.progress-fill{height:100%;background:var(--color-accent);width:0%;transition:width .5s ease}.module-header{background:var(--color-surface);padding:30px;border-radius:var(--radius);margin-bottom:20px;border-left:5px solid var(--color-primary)}.tabs{display:flex;gap:10px;margin-bottom:20px;border-bottom:1px solid var(--color-border);padding-bottom:10px}.tab-btn{background:none;border:none;padding:10px 20px;font-size:1rem;color:var(--color-text-light);border-bottom:2px solid transparent}.tab-btn.active{color:var(--color-primary);border-bottom-color:var(--color-primary);font-weight:700}.content-area{background:var(--color-surface);padding:30px;border-radius:var(--radius);min-height:400px}.quiz-container{max-width:800px;margin:0 auto}.question-card{background:var(--color-surface);padding:30px;border-radius:var(--radius);margin-bottom:20px;box-shadow:var(--shadow)}.options-list{list-style:none;margin:20px 0}.option-item{padding:15px;border:1px solid var(--color-border);margin-bottom:10px;border-radius:var(--radius);cursor:pointer;transition:all .2s}.option-item:hover{background:var(--color-bg)}.option-item.selected{border-color:var(--color-primary);background:#8b3a3a1a}.option-item.correct{border-color:#2e7d32;background:#2e7d321a}.option-item.incorrect{border-color:#c62828;background:#c628281a}.feedback{margin-top:15px;padding:15px;border-radius:var(--radius);font-weight:700}.feedback.correct{background:#2e7d3233;color:#2e7d32}.feedback.incorrect{background:#c6282833;color:#c62828}.search-bar{width:100%;padding:12px;border:1px solid var(--color-border);border-radius:var(--radius);margin-bottom:20px;font-size:1rem;background:var(--color-surface);color:var(--color-text)}.term-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}.term-card{background:var(--color-surface);padding:20px;border-radius:var(--radius);border:1px solid var(--color-border);cursor:pointer;transition:transform .2s}.term-card:hover{transform:translateY(-3px)}.coach-toast{position:fixed;bottom:20px;right:20px;background:var(--color-surface);border-left:4px solid var(--color-accent);padding:20px;box-shadow:0 10px 25px #0003;border-radius:var(--radius);max-width:350px;z-index:1000;animation:slideIn .3s ease-out}@keyframes slideIn{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}.hidden{display:none}.text-center{text-align:center}.mt-2{margin-top:1rem}.mt-4{margin-top:2rem}.flex{display:flex}.gap-2{gap:.5rem}.justify-between{justify-content:space-between}