@tailwind base;@tailwind components;@tailwind utilities;:root{--primary: #4F46E5;--primary-light: #EEF2FF;--success: #22C55E;--warning: #F59E0B;--danger: #EF4444;--bg-light: #F9FAFB;--card-bg: white;--text-dark: #111827;--text-muted: #6B7280;--border: #E5E7EB;--dark-bg: #111827;--dark-card: #1F2937;--dark-text: #F9FAFB;--dark-text-muted: #9CA3AF}@layer base{html{font-family:Inter,system-ui,sans-serif}body{@apply antialiased;background-color:var(--bg-light);color:var(--text-dark)}html.dark body{background-color:var(--dark-bg);color:var(--dark-text)}}.phone-mockup{width:375px;height:812px;background-color:#fff;border-radius:40px;box-shadow:0 25px 50px -12px #00000040;border:12px solid #1f2937;position:relative;overflow:hidden;display:flex;flex-direction:column}.phone-mockup:before{content:"";position:absolute;top:0;left:50%;transform:translate(-50%);width:150px;height:25px;background-color:#1f2937;border-bottom-left-radius:20px;border-bottom-right-radius:20px;z-index:10}@media(max-width:767px){.phone-mockup{width:100%;height:100%;min-height:100vh;border-radius:0;border:none;box-shadow:none}.phone-mockup:before{display:none}}.banner-warning{background:#fef3c7;border-radius:8px;padding:12px;margin-bottom:16px;display:flex;align-items:center;gap:8px}.ai-proposal{background:var(--primary-light);border:2px solid var(--primary);border-radius:12px;padding:16px}.streak-badge{border-radius:999px;background:var(--primary-light);color:var(--primary);padding:6px 12px;font-weight:600;font-size:.85rem;white-space:nowrap}.nav-item{display:flex;align-items:center;gap:12px;padding:12px 16px;color:inherit;text-decoration:none;font-size:.9rem;transition:background .1s;cursor:pointer}.nav-item:hover{background:#80808014}.code-block{font-family:Fira Code,monospace;background:#111827;padding:12px;text-align:center;letter-spacing:2px;border-radius:8px;margin:12px 0;font-size:1.1rem;font-weight:600}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:16px}.input-code{font-family:Fira Code,monospace;text-transform:uppercase;letter-spacing:2px}.otp-input{width:34px;height:48px;font-family:Fira Code,monospace;font-size:1.5rem;font-weight:700;text-align:center;border:2px solid var(--border);border-radius:8px;color:var(--text-dark);background:#fff;outline:none;transition:border-color .15s,box-shadow .15s}.otp-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4f46e526}.input--error{border:1px solid var(--danger)!important}.input-error-msg{color:var(--danger);font-size:.75rem;margin:4px 0 0}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-size:.85rem;color:var(--text-muted);font-weight:500}.form-group input::placeholder{color:#9ca3af}.btn{width:100%;padding:12px 16px;border:none;border-radius:8px;font-size:.95rem;font-family:inherit;font-weight:600;cursor:pointer;transition:opacity .15s}.btn:hover{opacity:.9}.btn:active{opacity:.8}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background-color:var(--primary);color:#fff}.btn-outline{background-color:transparent;color:var(--primary);border:2px solid var(--primary)}.btn-success{background-color:var(--success);color:#fff}.divider{border:none;border-top:1px solid var(--border);width:100%;margin:0}.link-secondary{color:var(--text-muted);font-size:.85rem;text-decoration:none;text-align:center;transition:color .15s}.link-secondary:hover{color:var(--text-dark);font-weight:700}.page-center{min-height:100vh;background:var(--bg-light);display:flex;align-items:center;justify-content:center}.app-header{background-color:var(--primary);color:#fff;padding:45px 20px 20px;display:flex;justify-content:space-between;align-items:center;flex-shrink:0}.app-content{flex:1;min-height:0;overflow-y:auto;background-color:var(--bg-light);padding:20px;display:flex;flex-direction:column;gap:16px}.tab-bar{background:var(--card-bg);border-top:1px solid var(--border);display:flex;justify-content:space-around;align-items:center;height:60px;flex-shrink:0}.tab-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;flex:1;height:100%;color:var(--text-muted);font-size:.72rem;font-weight:500;text-decoration:none;cursor:pointer;transition:color .15s}.tab-item.active{color:var(--primary)}.tab-icon{font-size:1.3rem;line-height:1}.flashcard-container{perspective:1000px;width:100%}.flashcard{width:100%;height:400px;position:relative;transform-style:preserve-3d;transition:transform .55s ease;cursor:pointer}.flashcard.flipped{transform:rotateY(180deg)}.flashcard-face{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:16px;box-shadow:0 4px 6px #0000001a;backface-visibility:hidden;-webkit-backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;box-sizing:border-box;text-align:center}.flashcard-front-face{background:#fff}.flashcard-back-face{background:var(--primary-light);transform:rotateY(180deg)}@keyframes spin{to{transform:rotate(360deg)}}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}@keyframes skeleton-pulse{0%,to{opacity:1}50%{opacity:.4}}.loading-skeleton{background:#e5e7eb;border-radius:12px;animation:skeleton-pulse 1.5s ease-in-out infinite}.subject-row{display:flex;flex-direction:column;gap:12px;background:#fff;padding:16px;border-radius:12px;border:1px solid var(--border);margin-bottom:16px}.toggle-group{display:flex;gap:8px;width:100%}.toggle-group button{flex:1;padding:8px 4px;font-size:.75rem;font-weight:600;border-radius:6px;border:1px solid var(--border);background:transparent;color:var(--text-muted);cursor:pointer;font-family:inherit;transition:background .15s,color .15s,border-color .15s}.timetable-grid{min-width:700px;display:grid;grid-template-columns:60px repeat(5,1fr);grid-auto-rows:minmax(36px,auto);gap:8px}.subject-card{background:var(--primary-light);color:var(--primary);font-size:.8rem;padding:8px;border-radius:6px;text-align:center;font-weight:500}.free-time-card{background:transparent;border:2px dashed var(--border);color:var(--success);font-size:.8rem;padding:8px;border-radius:6px;text-align:center}input[type=text],input[type=email],input[type=password],input[type=date],input[type=time],input[type=number],select,.input{width:100%;height:48px;padding:0 16px;font-size:1rem;font-family:inherit;border:1px solid var(--border, #e5e7eb);border-radius:8px;background-color:#fff;color:var(--text-dark, #111827);box-sizing:border-box;outline:none;transition:border-color .2s ease,box-shadow .2s ease;margin-bottom:16px}input:focus,select:focus,.input:focus{border-color:var(--primary, #6366f1);box-shadow:0 0 0 3px #6366f133}input::placeholder,.input::placeholder{color:#9ca3af}select,.input[data-type=select]{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url('data:image/svg+xml;charset=US-ASCII,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="%236b7280" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"></polyline></svg>');background-repeat:no-repeat;background-position:right 12px center;background-size:16px;padding-right:40px;cursor:pointer}.otp-input{height:48px;width:34px;margin-bottom:0;padding:0}.global-header{background:#fff;border-bottom:1px solid var(--border);flex-shrink:0;z-index:50;padding-top:25px}.global-header__bar{display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 16px}.global-header__title{font-size:1.25rem;font-weight:800;letter-spacing:-.5px;color:var(--primary)}.global-header__back{background:none;border:none;cursor:pointer;color:var(--primary);font-size:.95rem;font-weight:600;font-family:inherit;padding:0;width:60px;text-align:left}@media(max-width:767px){.global-header{padding-top:0}}.no-scrollbar::-webkit-scrollbar{display:none}