:root{--bg-primary: #120e0c;--bg-secondary: #1a1411;--bg-tertiary: #241c18;--glass-bg: rgba(26, 20, 17, .75);--glass-border: rgba(255, 255, 255, .08);--glass-border-hover: rgba(212, 119, 66, .35);--text-primary: #ffffff;--text-secondary: #d6c7be;--text-muted: #9e8a7f;--accent-quant: #87966B;--accent-quant-rgb: 135, 150, 107;--accent-verbal: #568581;--accent-verbal-rgb: 86, 133, 129;--accent-ai: #D47742;--accent-ai-rgb: 212, 119, 66;--primary: #624536;--primary-hover: #785644;--primary-rgb: 98, 69, 54;--success: #2e7d32;--warning: #d97706;--danger: #ef4444;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 24px;--transition-fast: .2s cubic-bezier(.4, 0, .2, 1);--transition-normal: .3s cubic-bezier(.4, 0, .2, 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var(--glass-border);align-self:flex-start;border-top-left-radius:0;color:var(--text-primary)}.chat-message.user{background:linear-gradient(135deg,var(--primary),var(--primary-hover));align-self:flex-end;border-top-right-radius:0;color:#fff}.ai-chat-input-area{padding:16px;background:var(--bg-secondary);border-top:1px solid var(--glass-border);display:flex;gap:12px}.ai-chat-input{flex-grow:1;background:var(--bg-primary);border:1px solid var(--glass-border);color:var(--text-primary);border-radius:var(--radius-sm);padding:12px 16px;outline:none;font-family:inherit}.ai-chat-input:focus{border-color:var(--accent-ai)}.mobile-nav-toggle{display:none;background:none;border:none;color:#fff}@media (max-width: 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#2d5450;--accent-verbal-rgb: 45, 84, 80;--accent-ai: #b5541e;--accent-ai-rgb: 181, 84, 30;--primary: #624536;--primary-hover: #4e3528;--primary-rgb: 98, 69, 54;--success: #15803d;--warning: #b45309;--danger: #dc2626;background-image:radial-gradient(at 0% 0%,rgba(98,69,54,.08) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(135,150,107,.08) 0px,transparent 50%),radial-gradient(at 50% 50%,rgba(212,119,66,.04) 0px,transparent 50%)}body.light-theme .option-btn.correct{color:#065f46!important;font-weight:600}body.light-theme .option-btn.incorrect{color:#991b1b!important;font-weight:600}body.light-theme .btn-quant{background:#87966b38;color:#111827!important;font-weight:700;border:1.5px solid rgba(94,109,68,.45)}body.light-theme .btn-quant:hover{background:#87966b59;color:#000!important;border-color:#4a5933}body.light-theme .btn-verbal{background:#56858133;color:#111827!important;font-weight:700;border:1.5px solid rgba(60,101,97,.45)}body.light-theme 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.btn-secondary:hover{background:#00000014;color:#000!important}body.light-theme .option-btn{background:#00000003}body.light-theme .option-btn:hover:not(:disabled){background:#00000008;border-color:#00000026}body.light-theme .ai-chat-messages{background:#00000005}body.light-theme .chat-message.bot{background:var(--bg-secondary);color:var(--text-primary)}body.light-theme .example-box{background:#00000003}.desktop-only-trigger{display:flex!important}@media (max-width: 1024px){.desktop-only-trigger{display:none!important}}body.light-theme .section-tab{color:#475569!important}body.light-theme .section-tab.active{color:var(--text-primary)!important}.welcome-banner{padding:40px;background:linear-gradient(135deg,#62453673,#1a1411d9);position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.08);border-left:5px solid var(--primary)!important;box-shadow:0 12px 32px #00000059;border-radius:var(--radius-md)}.welcome-banner h2{font-size:2.2rem;margin-bottom:8px;font-family:Outfit,sans-serif;font-weight:800;color:var(--text-primary)}.welcome-banner p{color:var(--text-secondary);max-width:650px;font-size:1.05rem;margin-bottom:24px;line-height:1.6}.welcome-banner .logo-card{width:150px;height:150px;display:flex;align-items:center;justify-content:center;background:#ffffff0d;border:1.5px solid rgba(255,255,255,.12);border-radius:24px;padding:20px;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:0 12px 32px #3d231440}body.light-theme .welcome-banner{background:#f0e8db!important;border:1px solid rgba(98,69,54,.15)!important;border-left:5px solid #624536!important;box-shadow:0 8px 28px #3d231414!important}body.light-theme .welcome-banner h2{color:#2a1a11!important}body.light-theme .welcome-banner p{color:#5a4233!important}body.light-theme .welcome-banner .logo-card{background:#f0e8db!important;border:none!important;box-shadow:none!important;padding:10px!important}body.light-theme .welcome-banner .btn-secondary{background:#ffffffa6!important;border:1px solid rgba(98,69,54,.2)!important;color:#2a1a11!important}