@import"https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&display=swap";:root{--bg: #f6f1e7;--bg-2: #fcf9f2;--surface: rgba(255, 255, 255, .55);--surface-2: rgba(255, 255, 255, .78);--stroke: rgba(31, 26, 22, .1);--stroke-strong: rgba(31, 26, 22, .2);--text: #221c2e;--text-soft: rgba(34, 28, 46, .66);--text-dim: rgba(34, 28, 46, .42);--coral: #ff6a3d;--peach: #ffb27a;--emerald: #0fae8c;--lime: #9bd84f;--berry: #e44d8c;--plum: #6c2d6b;--grad-main: linear-gradient(120deg, #ff6a3d 0%, #ff8f5c 50%, #ffb27a 100%);--grad-pink: linear-gradient(120deg, #e44d8c 0%, #ff6a3d 100%);--grad-lime: linear-gradient(120deg, #0fae8c 0%, #9bd84f 100%);--r-xl: 32px;--r-lg: 24px;--r-md: 18px;--r-sm: 12px;--r-pill: 100px;--ease: cubic-bezier(.22, 1, .36, 1);--spring: cubic-bezier(.34, 1.56, .64, 1);--font: "Space Grotesk", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--maxw: 1200px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-body);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;min-height:100vh}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}.bg-mesh{position:fixed;top:0;right:0;bottom:0;left:0;z-index:-2;background:radial-gradient(42% 52% at 12% 8%,rgba(255,106,61,.28),transparent 70%),radial-gradient(46% 46% at 88% 4%,rgba(15,174,140,.2),transparent 70%),radial-gradient(52% 56% at 78% 82%,rgba(228,77,140,.18),transparent 70%),radial-gradient(42% 42% at 8% 92%,rgba(155,216,79,.22),transparent 70%);filter:blur(10px);pointer-events:none}.bg-grain{position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;opacity:.04;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' 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#ff6a3db3}.btn-glass{background:var(--surface);border-color:var(--stroke);color:var(--text);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.btn-glass:hover{background:var(--surface-2);border-color:var(--stroke-strong);transform:translateY(-3px)}.btn-sm{padding:9px 18px;font-size:.875rem}.glass-card{background:var(--surface);border:1px solid var(--stroke);border-radius:var(--r-lg);padding:28px;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);transition:transform .5s var(--ease),border-color .3s,background .3s}.glass-card:hover{border-color:var(--stroke-strong);background:var(--surface-2)}.glass-card--no-hover:hover{transform:none}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:600;letter-spacing:.04em;padding:7px 15px;border-radius:var(--r-pill);background:var(--surface);border:1px solid var(--stroke);color:var(--text-soft);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);margin-bottom:22px}.eyebrow .eyebrow-icon{font-size:.95rem}.field{display:flex;flex-direction:column;gap:6px}.field-label{font-size:.875rem;font-weight:600;color:var(--text-soft)}.field-input{width:100%;padding:12px 16px;font-family:var(--font-body);font-size:.95rem;color:var(--text);background:var(--surface-2);border:1px solid var(--stroke);border-radius:var(--r-md);outline:none;transition:border-color .2s,box-shadow .2s}.field-input:focus{border-color:var(--coral);box-shadow:0 0 0 3px #ff6a3d26}.field-input--error{border-color:var(--berry)}.field-input--error:focus{box-shadow:0 0 0 3px #e44d8c26}.field-error{font-size:.82rem;color:var(--berry);font-weight:500}.field-input::placeholder{color:var(--text-dim)}.logo{display:inline-flex;align-items:center;gap:11px;text-decoration:none}.logo-mark{width:38px;height:38px;border-radius:12px;background:var(--grad-main);display:grid;place-items:center;box-shadow:0 6px 18px -6px #ff6a3d99;flex-shrink:0}.logo-mark svg{width:22px;height:22px}.logo-text{font-family:var(--font);font-size:1.3rem;font-weight:700;letter-spacing:.06em;color:var(--text)}.loading-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;gap:12px}.loading-dot{width:8px;height:8px;border-radius:50%;background:var(--coral);animation:loading-bounce 1.2s ease-in-out infinite}.loading-dot:nth-child(2){animation-delay:.15s}.loading-dot:nth-child(3){animation-delay:.3s}@keyframes loading-bounce{0%,80%,to{transform:scale(.6);opacity:.4}40%{transform:scale(1);opacity:1}}.grad-text{background:var(--grad-main);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}.alert{padding:12px 16px;border-radius:var(--r-md);font-size:.9rem;font-weight:500}.alert-error{background:#e44d8c1a;border:1px solid rgba(228,77,140,.3);color:var(--plum)}.alert-success{background:#0fae8c1a;border:1px solid rgba(15,174,140,.3);color:var(--emerald)}.alert-info{background:#ff6a3d1a;border:1px solid rgba(255,106,61,.3);color:var(--coral)}.auth-split{display:grid;grid-template-columns:1fr 1fr;min-height:100vh}.auth-split-brand{background:var(--grad-main);display:flex;align-items:center;justify-content:center;padding:48px;position:relative;overflow:hidden}.auth-split-brand:before{content:"";position:absolute;top:-40%;right:-40%;bottom:-40%;left:-40%;background:radial-gradient(circle at 60% 40%,rgba(255,255,255,.18),transparent 60%);pointer-events:none}.auth-brand-inner{display:flex;flex-direction:column;gap:20px;position:relative}.auth-brand-title{font-family:var(--font);font-size:clamp(1.8rem,3vw,2.6rem);font-weight:700;color:#fff;line-height:1.15;letter-spacing:-.02em}.auth-brand-sub{font-size:1.05rem;color:#ffffffd1;max-width:360px;line-height:1.6}.auth-split-form{display:flex;align-items:center;justify-content:center;padding:48px 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.3s}.step-indicator-line--done{background:var(--coral)}.step-indicator-circle{width:32px;height:32px;border-radius:50%;background:var(--surface);border:1px solid var(--stroke);display:grid;place-items:center;font-family:var(--font);font-size:.82rem;font-weight:700;color:var(--text-dim);transition:background .3s,border-color .3s,color .3s;flex-shrink:0}.step-indicator-circle--active{background:var(--grad-main);border-color:transparent;color:#fff;box-shadow:0 4px 14px -4px #ff6a3d99}.step-indicator-circle--done{background:var(--coral);border-color:transparent;color:#fff}.step-indicator-label{font-size:.78rem;font-weight:500;color:var(--text-dim);margin-left:8px;white-space:nowrap;transition:color .3s}.step-indicator-label--active{color:var(--text);font-weight:700}.quiz-group{border:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.quiz-legend{font-size:.875rem;font-weight:600;color:var(--text-soft);display:flex;flex-direction:column;gap:2px;margin-bottom:4px}.quiz-legend-sub{font-size:.78rem;color:var(--text-dim);font-weight:400}.quiz-options{display:flex;flex-wrap:wrap;gap:8px}.quiz-options--grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:8px}.quiz-options--column{flex-direction:column;flex-wrap:nowrap;gap:6px}.quiz-option{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--r-md);background:var(--surface);border:1.5px solid var(--stroke);cursor:pointer;font-size:.875rem;font-weight:500;color:var(--text);transition:border-color .2s,background 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solid var(--stroke);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.app-nav-inner{display:flex;align-items:center;gap:20px;max-width:var(--maxw);margin:0 auto;padding:0 24px;height:60px}.app-nav-links{display:flex;align-items:center;gap:4px;flex:1;margin-left:16px}.app-nav-link{font-size:.875rem;font-weight:600;color:var(--text-soft);text-decoration:none;padding:6px 14px;border-radius:var(--r-pill);transition:color .2s,background .2s}.app-nav-link:hover{color:var(--text);background:var(--surface-2)}.app-nav-link--active{color:var(--coral);background:#ff6a3d14}.app-nav-logout{margin-left:auto;font-size:.875rem;font-weight:600;color:var(--text-soft);background:none;border:none;cursor:pointer;padding:6px 14px;border-radius:var(--r-pill);transition:color .2s,background .2s}.app-nav-logout:hover{color:var(--text);background:var(--surface-2)}.app-main{flex:1;display:flex;flex-direction:column}.subjects-page{max-width:var(--maxw);width:100%;margin:0 auto;padding:40px 24px 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16px;border-radius:var(--r-md);font-size:.95rem;line-height:1.6;white-space:pre-wrap;word-break:break-word}.chat-message--user .chat-message-bubble{background:var(--grad-main);color:#fff;border-bottom-right-radius:4px}.chat-message--assistant .chat-message-bubble{background:var(--surface);border:1px solid var(--stroke);color:var(--text);border-bottom-left-radius:4px}.chat-cursor{display:inline-block;width:2px;height:1em;background:var(--text-soft);margin-left:2px;vertical-align:middle;animation:blink 1s step-end infinite}@keyframes blink{50%{opacity:0}}.chat-thinking-indicator{display:flex;align-items:center;gap:6px;padding:10px 14px;border-radius:var(--r-md);background:var(--surface);border:1px solid var(--stroke);align-self:flex-start;max-width:200px}.chat-thinking-dot{width:7px;height:7px;border-radius:50%;background:var(--coral);animation:loading-bounce 1.2s ease-in-out infinite}.chat-thinking-dot:nth-child(2){animation-delay:.15s}.chat-thinking-dot:nth-child(3){animation-delay:.3s}.chat-thinking-label{font-size:.82rem;color:var(--text-soft);font-weight:500}.chat-send-error{margin:0 24px;flex-shrink:0}.chat-input-area{display:flex;gap:12px;align-items:flex-end;padding:16px 24px 24px;border-top:1px solid var(--stroke);flex-shrink:0;background:var(--bg)}.chat-textarea{flex:1;resize:none;font-family:var(--font-body);font-size:.95rem;color:var(--text);background:var(--surface-2);border:1px solid var(--stroke);border-radius:var(--r-md);padding:12px 16px;outline:none;transition:border-color .2s,box-shadow .2s;line-height:1.5;min-height:48px;max-height:160px;overflow-y:auto}.chat-textarea:focus{border-color:var(--coral);box-shadow:0 0 0 3px #ff6a3d26}.chat-textarea::placeholder{color:var(--text-dim)}@media(max-width:768px){.app-nav-inner{padding:0 16px;gap:12px}.app-nav-links{gap:0;margin-left:8px}.app-nav-link{padding:6px 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var(--stroke)}.admin-thinking-label{font-size:.8rem;font-weight:600;color:var(--text-soft);text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px}.admin-thinking-text{font-family:var(--font-body);font-size:.875rem;line-height:1.6;white-space:pre-wrap;word-break:break-word;color:var(--text-soft);margin:0}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100;padding:24px}.modal-card{width:100%;max-width:520px;max-height:90vh;overflow-y:auto}.modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:16px}.modal-close{background:transparent;border:none;font-size:1.4rem;cursor:pointer;color:var(--text-soft);line-height:1;padding:2px 6px;border-radius:var(--r-sm);transition:color .2s,background 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