@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap");:root{color-scheme:light;--bg-base:#f0f4ff;--bg-raised:#ffffff;--bg-surface:#f1f5f9;--bg-surface-alt:#e2e8f0;--bg-hover:#f8fafc;--glass-bg:rgba(255,255,255,0.80);--glass-border:rgba(255,255,255,0.9);--glass-blur:16px;--glass-shadow:0 8px 32px rgba(15,23,42,0.06);--text:#0f172a;--text-secondary:#334155;--muted:#64748b;--primary:#2563eb;--primary-soft:rgba(37,99,235,0.08);--primary-hover:#1d4ed8;--primary-glow:rgba(37,99,235,0.20);--accent:#7c3aed;--success:#10b981;--success-bg:#ecfdf5;--danger:#ef4444;--danger-bg:#fef2f2;--warning:#f59e0b;--warning-bg:#fffbeb;--info:#0ea5e9;--border:#e2e8f0;--border-subtle:#f1f5f9;--gradient-primary:linear-gradient(135deg,#2563eb,#7c3aed);--gradient-blue:linear-gradient(135deg,#2563eb,#3b82f6);--gradient-surface:linear-gradient(135deg,rgba(255,255,255,0.9),rgba(248,250,252,0.7));--gradient-glow:linear-gradient(135deg,rgba(37,99,235,0.1),rgba(124,58,237,0.05));--subject-science:#10b981;--subject-science-bg:#ecfdf5;--subject-math:#f59e0b;--subject-math-bg:#fffbeb;--subject-english:#8b5cf6;--subject-english-bg:#f5f3ff;--subject-hindi:#ef4444;--subject-hindi-bg:#fef2f2;--subject-social:#3b82f6;--subject-social-bg:#eff6ff;--subject-computer:#ec4899;--subject-computer-bg:#fdf2f8;--subject-default:#64748b;--subject-default-bg:#f8fafc;--navbar-height:64px;--navbar-bg:#ffffff;--navbar-border:#e8eef6;--sidebar-width:220px;--sidebar-bg:#ffffff;--sidebar-border:#e8eef6;--sidebar-item-hover:rgba(37,99,235,0.07);--sidebar-item-active:rgba(37,99,235,0.12);--shadow-xs:0 1px 4px rgba(15,23,42,0.04);--shadow-sm:0 2px 8px rgba(15,23,42,0.06);--shadow-md:0 8px 24px rgba(15,23,42,0.10);--shadow-lg:0 16px 48px rgba(15,23,42,0.14);--shadow-glow:0 0 24px rgba(37,99,235,0.18);--radius-xs:6px;--radius-sm:10px;--radius-md:14px;--radius-lg:18px;--radius-xl:24px;--radius-full:9999px;--ease-out:cubic-bezier(0.16,1,0.3,1);--duration-fast:150ms;--duration-normal:250ms;--duration-slow:400ms}@keyframes fadeIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInScale{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes slideInLeft{0%{opacity:0;transform:translateX(-16px)}to{opacity:1;transform:translateX(0)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes pulse-glow{0%,to{box-shadow:0 0 4px rgba(16,185,129,.3)}50%{box-shadow:0 0 12px rgba(16,185,129,.6)}}@keyframes gradient-shift{0%{background-position:0 50%}50%{background-position:100% 50%}to{background-position:0 50%}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@keyframes toast-in-out{0%{opacity:0;transform:translateY(-12px)}10%{opacity:1;transform:translateY(0)}90%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-12px)}}@keyframes spin{to{transform:rotate(1turn)}}*{box-sizing:border-box}html{min-width:320px;scroll-behavior:smooth}body{margin:0;background:var(--bg-base);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button,input,select,textarea{font:inherit}button{white-space:nowrap}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:-.02em;color:var(--text)}h1{margin-bottom:8px;font-size:1.65rem;font-weight:800;line-height:1.15}h2{font-size:1.05rem;line-height:1.25}h2,h3{margin-bottom:0;font-weight:700}h3{font-size:1rem}.muted{margin-bottom:0;color:var(--muted);line-height:1.55}.eyebrow{margin:0 0 7px;color:var(--primary);font-size:.72rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase}.panel{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));padding:20px;box-shadow:var(--shadow-sm);transition:border-color var(--duration-normal) var(--ease-out),box-shadow var(--duration-normal) var(--ease-out)}.panel:hover{border-color:rgba(37,99,235,.25);box-shadow:var(--shadow-md)}.panel-head{display:flex;gap:14px;align-items:flex-start;justify-content:space-between;margin-bottom:16px}.panel-head span{color:var(--muted);font-size:.82rem;font-weight:700}.subscription-badge{display:inline-flex;align-items:center;gap:5px;background:linear-gradient(135deg,#f59e0b,#fbbf24);color:#ffffff;font-size:.72rem;font-weight:800;letter-spacing:.03em;padding:4px 10px;border-radius:var(--radius-full);box-shadow:0 2px 8px rgba(245,158,11,.3)}.subscription-badge:before{content:"⭐";font-size:.7rem}.app-navbar{position:-webkit-sticky;position:sticky;top:0;z-index:100;justify-content:space-between;gap:16px;height:var(--navbar-height);padding:0 24px;background:linear-gradient(135deg,#2563eb,#1d4ed8);border-bottom:none;box-shadow:0 2px 12px rgba(37,99,235,.35)}.app-navbar,.navbar-brand{display:flex;align-items:center}.navbar-brand{gap:10px;text-decoration:none;color:#ffffff}.navbar-logo{display:grid;place-items:center;width:36px;height:36px;border-radius:var(--radius-sm);background:rgba(255,255,255,.2);color:#fff;font-size:1rem;font-weight:900;box-shadow:0 2px 8px rgba(0,0,0,.15);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.navbar-title{font-size:.95rem;font-weight:800;color:#ffffff;line-height:1.1}.navbar-subtitle{font-size:.68rem;color:rgba(255,255,255,.7);font-weight:500}.navbar-end{display:flex;align-items:center;gap:12px}.navbar-icon-btn{display:grid;place-items:center;width:36px;height:36px;border:none;border-radius:var(--radius-sm);background:rgba(255,255,255,.15);color:#ffffff;cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.navbar-icon-btn:hover{border-color:transparent;color:#ffffff;background:rgba(255,255,255,.25)}.navbar-avatar{display:flex;align-items:center;gap:8px;padding:4px 10px 4px 4px;border:1px solid rgba(255,255,255,.3);border-radius:var(--radius-full);background:rgba(255,255,255,.15);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.navbar-avatar:hover{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.25);box-shadow:0 2px 8px rgba(0,0,0,.15)}.avatar-circle{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,.25);color:#fff;font-size:.7rem;font-weight:800}.avatar-name{font-size:.82rem;font-weight:700;color:#ffffff}form{grid-gap:16px;gap:16px}form,label{display:grid}label{grid-gap:7px;gap:7px;color:var(--text-secondary);font-size:.88rem;font-weight:600}input,select{width:100%;min-height:44px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-raised);color:var(--text);padding:0 14px;transition:border-color var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out),background var(--duration-fast) var(--ease-out)}input::placeholder{color:var(--muted)}input:focus,select:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px var(--primary-glow);background:var(--bg-raised)}select{cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}select option{background:var(--bg-raised);color:var(--text)}.danger-action,.primary-action,.row-actions button,.secondary-action{min-height:44px;border-radius:var(--radius-sm);cursor:pointer;font-weight:700;padding:0 20px;transition:all var(--duration-normal) var(--ease-out)}.primary-action{border:0;background:var(--gradient-primary);background-size:200% 200%;color:#ffffff;box-shadow:0 4px 14px rgba(37,99,235,.3)}.primary-action:hover:not(:disabled){background-position:100% 0;box-shadow:0 6px 20px rgba(37,99,235,.4);transform:translateY(-1px)}.primary-action:active:not(:disabled){transform:translateY(0)}.row-actions button,.secondary-action{border:1px solid var(--border);background:var(--bg-raised);color:var(--text-secondary);box-shadow:0 1px 4px rgba(15,23,42,.05)}.row-actions button:hover:not(:disabled),.secondary-action:hover:not(:disabled){border-color:rgba(37,99,235,.3);color:var(--text);box-shadow:0 2px 8px rgba(15,23,42,.08)}.danger-action{border:1px solid rgba(239,68,68,.3);background:var(--danger-bg);color:var(--danger)}.danger-action:hover:not(:disabled){border-color:rgba(239,68,68,.5);background:rgba(239,68,68,.15)}button:disabled,input:disabled,select:disabled{cursor:not-allowed;opacity:.5}.form-error,.form-success{margin:0 0 16px;border-radius:var(--radius-sm);padding:12px 16px;font-size:.9rem;font-weight:600}.form-error{animation:fadeIn var(--duration-slow) var(--ease-out);border-left:3px solid var(--danger);background:var(--danger-bg);color:var(--danger)}.form-success{border-left:3px solid var(--success);background:var(--success-bg);color:var(--success);animation:toast-in-out 4s var(--ease-out) forwards}.button-row,.form-row,.row-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}@media (max-width:820px){.panel-head{display:grid}}@media (max-width:600px){.app-navbar{padding:0 12px;gap:8px}.navbar-brand,.navbar-end{gap:6px}.avatar-name,.navbar-subtitle{display:none}.navbar-avatar{padding:4px;gap:0!important}.subscription-badge{padding:4px 6px;font-size:.65rem}}