:root{--brand-navy: #1a3a5c;--brand-navy-light: #2a5a8c;--brand-sky: #4fc3f7;--brand-sky-light: #81d4fa;--brand-sky-lighter: #b3e5fc;--brand-gradient: linear-gradient(135deg, #1a3a5c 0%, #2a5a8c 50%, #4fc3f7 100%);--brand-gradient-soft: linear-gradient(135deg, #e8f4fd 0%, #f0f9ff 100%);--status-present: #43a047;--status-present-bg: #e8f5e9;--status-present-border: #a5d6a7;--status-delegated: #fb8c00;--status-delegated-bg: #fff3e0;--status-delegated-border: #ffcc80;--status-absent: #e53935;--status-absent-bg: #ffebee;--status-absent-border: #ef9a9a;--gray-50: #fafafa;--gray-100: #f5f5f5;--gray-200: #eeeeee;--gray-300: #e0e0e0;--gray-400: #bdbdbd;--gray-500: #9e9e9e;--gray-600: #757575;--gray-700: #616161;--gray-800: #424242;--gray-900: #212121;--white: #ffffff;--font-family: "Tajawal", sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-size-4xl: 2.5rem;--font-weight-light: 300;--font-weight-regular: 400;--font-weight-medium: 500;--font-weight-bold: 700;--font-weight-extra-bold: 800;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 50%;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px rgba(0, 0, 0, .05), 0 2px 4px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .08), 0 4px 10px rgba(0, 0, 0, .04);--shadow-xl: 0 20px 40px rgba(0, 0, 0, .1), 0 8px 16px rgba(0, 0, 0, .06);--shadow-glow: 0 0 20px rgba(79, 195, 247, .3);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .4s cubic-bezier(.4, 0, .2, 1);--transition-bounce: .5s cubic-bezier(.34, 1.56, .64, 1);--z-dropdown: 100;--z-modal: 200;--z-toast: 300;--z-tooltip: 400;--sidebar-width: 260px;--topbar-height: 64px;--content-max-width: 1400px}.landing-page{min-height:100vh;background:linear-gradient(135deg,#e8f4fd,#f0f9ff 30%,#e8fdf0 70%,#f5f5f5);overflow-x:hidden}.lang-switcher-bar{display:flex;justify-content:flex-end;padding:var(--space-4) var(--space-8)}.lang-switcher{display:flex;background:var(--white);border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--gray-200)}.lang-btn{padding:var(--space-2) var(--space-5);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--gray-500);transition:all var(--transition-fast);cursor:pointer;border:none;background:none;font-family:var(--font-family)}.lang-btn.active{background:var(--brand-sky);color:var(--white)}.lang-btn:hover:not(.active){background:var(--gray-50);color:var(--gray-700)}.hero-section{display:flex;align-items:center;justify-content:space-between;max-width:1200px;margin:0 auto;padding:var(--space-8) var(--space-8) var(--space-16);gap:var(--space-12)}.hero-content{flex:1;max-width:550px}.hero-badge{display:inline-flex;align-items:center;gap:var(--space-2);background:#4fc3f71a;border:1px solid rgba(79,195,247,.2);border-radius:var(--radius-xl);padding:var(--space-2) var(--space-4);font-size:var(--font-size-sm);color:var(--brand-navy);margin-bottom:var(--space-6);animation:fadeInUp .8s cubic-bezier(.16,1,.3,1) both;animation-delay:.1s}.hero-brand-name{font-size:4rem;font-weight:var(--font-weight-extra-bold);color:var(--brand-navy);line-height:1.1;margin-bottom:var(--space-4);animation:fadeInUp .8s cubic-bezier(.16,1,.3,1) both;animation-delay:.2s}.hero-brand-name span{background:var(--brand-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}[dir=rtl] .hero-brand-name span{display:inline-block;line-height:1.25;background:none;-webkit-background-clip:initial;background-clip:initial;-webkit-text-fill-color:var(--brand-navy);color:var(--brand-navy)}.hero-tagline{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--gray-800);margin-bottom:var(--space-3);line-height:1.6;animation:fadeInUp .8s cubic-bezier(.16,1,.3,1) both;animation-delay:.3s}.hero-description{font-size:var(--font-size-base);color:var(--gray-500);line-height:1.8;margin-bottom:var(--space-8);animation:fadeInUp .8s cubic-bezier(.16,1,.3,1) both;animation-delay:.4s}.hero-ctas{display:flex;gap:var(--space-3);flex-wrap:wrap;animation:fadeInUp .8s cubic-bezier(.16,1,.3,1) both;animation-delay:.5s}.cta-primary{padding:var(--space-4) var(--space-8);background:var(--brand-gradient);color:var(--white);border-radius:var(--radius-md);font-weight:var(--font-weight-bold);font-size:var(--font-size-base);box-shadow:0 4px 15px #1a3a5c4d;transition:all var(--transition-fast);cursor:pointer;border:none;font-family:var(--font-family);white-space:nowrap}.cta-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px #1a3a5c66}.cta-secondary{padding:var(--space-3) var(--space-6);background:var(--white);color:var(--gray-700);border:1px solid var(--gray-300);border-radius:var(--radius-md);font-weight:var(--font-weight-medium);font-size:var(--font-size-sm);transition:all var(--transition-fast);cursor:pointer;font-family:var(--font-family);white-space:nowrap}.cta-secondary:hover{background:var(--gray-50);border-color:var(--brand-sky);color:var(--brand-navy)}.hero-preview{flex:1;max-width:480px;animation:popIn .8s cubic-bezier(.16,1,.3,1) both;animation-delay:.3s}.preview-card{background:var(--white);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);overflow:hidden;position:relative}.preview-header{background:var(--brand-gradient);padding:var(--space-4) var(--space-6);color:var(--white)}.preview-header h4{font-size:var(--font-size-sm);font-weight:var(--font-weight-bold);margin-bottom:var(--space-1)}.preview-header p{font-size:var(--font-size-xs);opacity:.8}.preview-body{padding:var(--space-6)}.preview-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-bold);color:var(--gray-600);margin-bottom:var(--space-3);text-align:center}.preview-tags{display:flex;gap:var(--space-2);flex-wrap:wrap;justify-content:center;margin-bottom:var(--space-4)}.preview-tag{padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);font-size:var(--font-size-xs);font-weight:var(--font-weight-bold);border:none;cursor:default}.preview-tag.green{background:var(--status-present-bg);color:var(--status-present);border:1px solid var(--status-present-border)}.preview-tag.orange{background:var(--status-delegated-bg);color:var(--status-delegated);border:1px solid var(--status-delegated-border)}.preview-tag.blue{background:#4fc3f71a;color:var(--brand-navy);border:1px solid var(--brand-sky-lighter)}.preview-tag.red{background:var(--status-absent-bg);color:var(--status-absent);border:1px solid var(--status-absent-border)}.preview-mini-rows{display:flex;flex-direction:column;gap:var(--space-2)}.preview-mini-row{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);background:var(--gray-50);border-radius:var(--radius-sm);font-size:var(--font-size-xs);animation:slideUp calc(.5s + var(--row-delay, 0s)) ease}.preview-mini-row .mini-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.preview-mini-row .mini-dot.green{background:var(--status-present)}.preview-mini-row .mini-dot.red{background:var(--status-absent)}.preview-mini-row .mini-dot.orange{background:var(--status-delegated)}.preview-mini-row .mini-name{flex:1;font-weight:var(--font-weight-medium);color:var(--gray-700)}.preview-mini-row .mini-status{font-size:10px;color:var(--gray-500)}.features-section{max-width:1200px;margin:0 auto;padding:0 var(--space-8) var(--space-12)}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-6)}.feature-card{background:var(--white);border-radius:var(--radius-lg);padding:var(--space-8) var(--space-6);box-shadow:var(--shadow-md);text-align:center;transition:all .3s cubic-bezier(.25,.8,.25,1);cursor:default;animation:fadeInUp .8s cubic-bezier(.16,1,.3,1) both}.feature-card:nth-child(1){animation-delay:.1s}.feature-card:nth-child(2){animation-delay:.2s}.feature-card:nth-child(3){animation-delay:.3s}.feature-card:hover{transform:translateY(-6px) scale(1.02);box-shadow:0 16px 32px #1a3a5c1a}.feature-icon{width:56px;height:56px;margin:0 auto var(--space-4);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.8rem}.feature-icon.green{background:var(--status-present-bg)}.feature-icon.blue{background:#4fc3f726}.feature-icon.purple{background:#f3e8fd}.feature-card h3{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--brand-navy);margin-bottom:var(--space-2)}.feature-card p{font-size:var(--font-size-sm);color:var(--gray-500);line-height:1.8}.stats-bar{max-width:1200px;margin:0 auto;padding:var(--space-8) var(--space-8) var(--space-12)}.stats-bar-inner{display:flex;justify-content:center;gap:var(--space-16);padding:var(--space-8);background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.stats-bar-item{text-align:center}.stats-bar-item .big-number{font-size:var(--font-size-4xl);font-weight:var(--font-weight-extra-bold);background:var(--brand-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1;margin-bottom:var(--space-2)}.stats-bar-item .big-label{font-size:var(--font-size-sm);color:var(--gray-500);font-weight:var(--font-weight-medium)}.landing-footer{text-align:center;padding:var(--space-8);border-top:1px solid var(--gray-200);background:var(--white)}.landing-footer p{color:var(--gray-500);font-size:var(--font-size-sm)}.landing-footer p:first-child{font-weight:var(--font-weight-bold);color:var(--brand-navy);margin-bottom:var(--space-2)}[dir=ltr] .hero-section{flex-direction:row-reverse}[dir=ltr] .hero-content{text-align:left}@media(max-width:1024px){.hero-section{flex-direction:column;text-align:center;padding:var(--space-6) var(--space-6) var(--space-10)}[dir=ltr] .hero-section{flex-direction:column}.hero-content{max-width:100%}[dir=ltr] .hero-content{text-align:center}.hero-ctas{justify-content:center}.hero-preview{max-width:400px;margin:0 auto}.hero-brand-name{font-size:3rem}}@media(max-width:768px){.features-grid{grid-template-columns:1fr}.stats-bar-inner{flex-direction:column;gap:var(--space-6)}.hero-brand-name{font-size:2.5rem}.lang-switcher-bar{padding:var(--space-3) var(--space-4)}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}@keyframes fadeInUp{0%{opacity:0;transform:translateY(24px) scale(.98);filter:blur(4px)}to{opacity:1;transform:translateY(0) scale(1);filter:blur(0)}}@keyframes popIn{0%{opacity:0;transform:scale(.8) translateY(10px)}60%{opacity:1;transform:scale(1.03) translateY(-3px)}to{opacity:1;transform:scale(1) translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(40px) scale(.98)}to{opacity:1;transform:translate(0) scale(1)}}html,body{animation:fadeIn .8s cubic-bezier(.16,1,.3,1) both}@keyframes fadeIn{0%{opacity:0;filter:blur(2px)}to{opacity:1;filter:blur(0)}}body{font-family:var(--font-family);font-size:var(--font-size-base);font-weight:var(--font-weight-regular);color:var(--gray-800);background:var(--gray-100);direction:rtl;text-align:right;line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{text-decoration:none;color:inherit}button{cursor:pointer;border:none;background:none;font-family:var(--font-family);font-size:var(--font-size-base)}input,select,textarea{font-family:var(--font-family);font-size:var(--font-size-base)}img{max-width:100%;display:block}ul,ol{list-style:none}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.items-start{align-items:flex-start}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.justify-end{justify-content:flex-end}.gap-1{gap:var(--space-1)}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.gap-8{gap:var(--space-8)}.wrap{flex-wrap:wrap}.grid{display:grid}.text-center{text-align:center}.text-right{text-align:right}.text-left{text-align:left}.w-full{width:100%}.h-full{height:100%}.relative{position:relative}.absolute{position:absolute}.hidden{display:none!important}.card{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:var(--space-6);transition:transform var(--transition-bounce),box-shadow var(--transition-base);animation:fadeInUp .6s cubic-bezier(.16,1,.3,1) both}.card:hover{box-shadow:var(--shadow-xl);transform:translateY(-5px) scale(1.01)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);border-radius:var(--radius-md);font-weight:var(--font-weight-bold);transition:transform var(--transition-bounce),box-shadow var(--transition-base),background-color var(--transition-base);white-space:nowrap;position:relative;overflow:hidden}.btn:active{transform:scale(.93)}.btn-primary{background:var(--brand-gradient);color:var(--white);box-shadow:0 4px 12px #1a3a5c33;border:1px solid rgba(255,255,255,.1)}.btn-primary:hover{box-shadow:0 8px 16px #4fc3f766;transform:translateY(-2px) scale(1.02)}.btn-primary:after{content:"";position:absolute;top:0;left:-100%;width:50%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:all .4s ease;transform:skew(-20deg)}.btn-primary:hover:after{left:150%}.btn-secondary{background:var(--gray-100);color:var(--gray-800);border:1px solid var(--gray-300)}.btn-secondary:hover{background:var(--white);box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--brand-light)}.btn-danger{background:var(--status-absent);color:var(--white)}.btn-danger:hover{background:#c62828}.btn-success{background:var(--status-present);color:var(--white)}.btn-success:hover{background:#2e7d32}.btn-sm{padding:var(--space-1) var(--space-3);font-size:var(--font-size-sm);border-radius:var(--radius-sm)}.btn-icon{width:40px;height:40px;padding:0;border-radius:var(--radius-full);display:inline-flex;align-items:center;justify-content:center}.input-group{display:flex;flex-direction:column;gap:5px}.input-group label{font-weight:700;font-size:var(--font-size-xs);color:#1e3a5f;letter-spacing:.03em;text-transform:uppercase;padding-right:2px}.input{padding:11px var(--space-4);border:1.5px solid #dde3ee;border-radius:12px;background:#fff;color:#1a2744;font-size:var(--font-size-base);font-weight:500;font-family:var(--font-family);transition:border-color .2s,box-shadow .2s;outline:none;width:100%;box-shadow:0 1px 3px #1a3a5c0f}.input:focus{border-color:#4fc3f7;background:#fff;box-shadow:0 0 0 3px #4fc3f72e,0 1px 4px #1a3a5c14}.input::placeholder{color:#b0bec8;font-weight:400}.input-telegram{direction:ltr!important;text-align:left!important}.badge{display:inline-flex;align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-3);border-radius:var(--radius-xl);font-size:var(--font-size-xs);font-weight:var(--font-weight-bold)}.badge-present{background:var(--status-present-bg);color:var(--status-present);border:1px solid var(--status-present-border)}.badge-delegated{background:var(--status-delegated-bg);color:var(--status-delegated);border:1px solid var(--status-delegated-border)}.badge-absent{background:var(--status-absent-bg);color:var(--status-absent);border:1px solid var(--status-absent-border)}.confirm-modal-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#0f172a99;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:9999;opacity:0;pointer-events:none;transition:opacity .2s ease}.confirm-modal-overlay.open{opacity:1;pointer-events:all}.confirm-modal{background:#fff;width:90%;max-width:400px;border-radius:16px;padding:24px;box-shadow:0 20px 25px -5px #0000001a,0 8px 10px -6px #0000001a;transform:scale(.95) translateY(10px);transition:all .2s cubic-bezier(.175,.885,.32,1.275);text-align:center}.confirm-modal-overlay.open .confirm-modal{transform:scale(1) translateY(0)}.confirm-icon{width:56px;height:56px;background:#fff1f2;color:#e11d48;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:28px}.confirm-title{font-size:20px;font-weight:700;color:#1e293b;margin-bottom:8px}.confirm-message{font-size:15px;color:#64748b;margin-bottom:24px;line-height:1.5}.confirm-actions{display:flex;gap:12px}.confirm-btn{flex:1;padding:12px;border-radius:8px;font-weight:600;cursor:pointer;border:none;transition:.2s ease;font-family:inherit;font-size:15px}.confirm-btn-cancel{background:#f1f5f9;color:#64748b}.confirm-btn-cancel:hover{background:#e2e8f0;color:#334155}.confirm-btn-danger{background:#e11d48;color:#fff}.confirm-btn-danger:hover{background:#be123c}.status-dot{width:10px;height:10px;border-radius:var(--radius-full);display:inline-block;flex-shrink:0}.status-dot.present{background:var(--status-present)}.status-dot.delegated{background:var(--status-delegated)}.status-dot.absent{background:var(--status-absent)}.avatar{width:40px;height:40px;border-radius:var(--radius-full);background:var(--brand-gradient);color:var(--white);display:flex;align-items:center;justify-content:center;font-weight:var(--font-weight-bold);font-size:var(--font-size-sm);flex-shrink:0}.avatar-sm{width:32px;height:32px;font-size:var(--font-size-xs)}.avatar-lg{width:56px;height:56px;font-size:var(--font-size-xl)}.table-container{overflow-x:auto;border-radius:var(--radius-md)}table{width:100%;border-collapse:collapse}table thead th{background:var(--gray-50);padding:var(--space-3) var(--space-4);font-weight:var(--font-weight-bold);font-size:var(--font-size-sm);color:var(--gray-600);text-align:right;border-bottom:2px solid var(--gray-200);white-space:nowrap}table tbody td{padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--gray-100);font-size:var(--font-size-sm);vertical-align:middle}table tbody tr{transition:background var(--transition-fast)}table tbody tr:hover{background:var(--gray-50)}.modal-overlay{position:fixed;inset:0;background:#0f1e328c;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:var(--z-modal);animation:fadeIn var(--transition-fast);padding:24px}.modal{background:var(--white);border-radius:var(--radius-xl);box-shadow:0 24px 60px #0000002e,0 8px 20px #0000001a;padding:var(--space-8);width:90%;max-width:500px;max-height:90vh;overflow-y:auto;animation:popIn .5s cubic-bezier(.175,.885,.32,1.275) both}.modal-content{background:var(--white);border-radius:24px;box-shadow:0 28px 70px #1a3a5c38,0 8px 24px #00000014;padding:0;width:min(640px,calc(100vw - 48px));max-height:92vh;overflow-y:auto;animation:popIn .5s cubic-bezier(.175,.885,.32,1.275) both;display:flex;flex-direction:column}.modal-content.modal-lg{max-width:820px}.teacher-edit-modal-overlay{align-items:flex-start;justify-content:center;padding:8px 16px 16px;overflow-y:auto;z-index:1200}.teacher-edit-modal-content{width:min(640px,calc(100vw - 32px));max-height:calc(100vh - 24px);max-height:calc(100dvh - 24px);margin:0 auto;overflow:hidden;display:grid;grid-template-rows:auto minmax(0,1fr)}.modal-content h3{font-size:var(--font-size-lg);font-weight:800;color:#fff;background:linear-gradient(135deg,#1a3a5c,#2d5a8c 55%,#4fc3f7);padding:var(--space-5) var(--space-6);margin:0;border-radius:24px 24px 0 0;letter-spacing:.01em;text-shadow:0 1px 3px rgba(0,0,0,.15)}.modal-content form{padding:28px 32px 0;display:flex;flex-direction:column;gap:1.25rem;flex:1;background:#f3f7fb}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem 1.5rem}.form-grid .full-width{grid-column:span 2}@media(max-width:560px){.form-grid{grid-template-columns:1fr}.form-grid .full-width{grid-column:span 1}}.modal-content::-webkit-scrollbar{width:5px}.modal-content::-webkit-scrollbar-thumb{background:#c8d6e5;border-radius:4px}.teacher-edit-modal-content form{padding:20px 22px 0;display:grid;grid-template-rows:minmax(0,1fr) auto;gap:14px;min-height:0;overflow:hidden}.teacher-edit-modal-content .form-grid{min-height:0;overflow-y:auto;padding-inline-end:2px}.teacher-edit-modal-content .modal-actions{margin-top:0;flex-shrink:0}.modal-content>div#scheduleGrid{padding:var(--space-4) var(--space-6);overflow-x:auto}.modal-actions{display:flex;gap:var(--space-3);justify-content:flex-end;padding:20px 32px 24px;border-top:1px solid #dde6f0;background:#f3f7fb;border-radius:0 0 24px 24px;margin-top:1.5rem}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-6)}.modal-header h2{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--brand-navy)}.period-times-btn{background:linear-gradient(135deg,#1a3a5c,#2d5a8c);color:#fff;border:none;border-radius:var(--radius-lg);padding:10px 20px;font-size:var(--font-size-sm);font-weight:700;cursor:pointer;display:flex;align-items:center;gap:6px;transition:opacity .2s,transform .15s}.period-times-btn:hover{opacity:.88;transform:translateY(-1px)}.period-times-modal{background:var(--white);border-radius:var(--radius-xl);box-shadow:0 24px 60px #0003;width:90%;max-width:540px;max-height:88vh;overflow-y:auto;animation:slideUp var(--transition-base);display:flex;flex-direction:column}.period-times-modal .modal-header{background:linear-gradient(135deg,#1a3a5c,#2d5a8c 60%,#4fc3f7);padding:var(--space-5) var(--space-6);border-radius:var(--radius-xl) var(--radius-xl) 0 0;margin-bottom:0}.period-times-modal .modal-header h3{color:#fff;font-size:var(--font-size-lg);font-weight:800;margin:0}.modal-close{background:#ffffff26;border:none;color:#fff;width:32px;height:32px;border-radius:50%;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.modal-close:hover{background:#ffffff4d}.modal-hint{font-size:var(--font-size-sm);color:#64748b;margin:var(--space-4) var(--space-6) 0;text-align:center}.period-times-grid{padding:var(--space-4) var(--space-6);display:flex;flex-direction:column;gap:var(--space-3)}.period-row{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-3) var(--space-4);background:#f8fafc;border-radius:var(--radius-md);border:1px solid #e2e8f0}.period-lbl{font-weight:700;color:var(--brand-navy);min-width:70px;font-size:var(--font-size-sm)}.period-inputs{display:flex;align-items:center;gap:var(--space-3);flex:1;flex-wrap:wrap}.period-inputs label{font-size:var(--font-size-xs);color:#64748b;font-weight:600;white-space:nowrap}.period-input{border:1.5px solid #cbd5e1;border-radius:var(--radius-md);padding:6px 10px;font-size:var(--font-size-sm);color:var(--brand-navy);background:#fff;transition:border-color .2s;width:110px}.period-input:focus{outline:none;border-color:#4fc3f7}.modal-footer{padding:var(--space-4) var(--space-6) var(--space-5);display:flex;justify-content:center;border-top:1px solid #e9edf2;background:#f8fafc;border-radius:0 0 var(--radius-xl) var(--radius-xl)}.btn-save-periods{background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;border:none;border-radius:var(--radius-lg);padding:12px 32px;font-size:var(--font-size-base);font-weight:700;cursor:pointer;transition:opacity .2s,transform .15s}.btn-save-periods:hover{opacity:.88;transform:translateY(-1px)}#toast-container{position:fixed;top:var(--space-5);left:50%;transform:translate(-50%);z-index:var(--z-toast);display:flex;flex-direction:column;align-items:center;gap:var(--space-3);pointer-events:none;width:max-content;max-width:90vw}.toast{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-6) var(--space-3) var(--space-4);border-radius:40px;color:var(--white);font-weight:600;font-size:var(--font-size-sm);box-shadow:0 8px 32px #0000002e,0 2px 8px #0000001a;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);pointer-events:auto;min-width:220px;max-width:480px;text-align:start;white-space:nowrap;border:1px solid rgba(255,255,255,.15);animation:toastEnter var(--transition-base) cubic-bezier(.34,1.56,.64,1) both}.toast.toast--hide{animation:toastLeave .28s ease-in forwards}.toast:before{font-size:1.1rem;flex-shrink:0}.toast-success{background:linear-gradient(135deg,#059669,#10b981)}.toast-success:before{content:""}.toast-error{background:linear-gradient(135deg,#dc2626,#ef4444)}.toast-error:before{content:""}.toast-warning{background:linear-gradient(135deg,#d97706,#f59e0b)}.toast-warning:before{content:""}.toast-info{background:linear-gradient(135deg,#1a3a5c,#2d5a8c)}.toast-info:before{content:"ℹ"}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes toastEnter{0%{opacity:0;transform:translateY(-14px) scale(.92)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes toastLeave{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(-10px) scale(.94)}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}@keyframes countUp{0%{opacity:0;transform:scale(.5)}to{opacity:1;transform:scale(1)}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--gray-100)}::-webkit-scrollbar-thumb{background:var(--gray-400);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--gray-500)}@media(max-width:768px){html{font-size:14px}.card{padding:var(--space-4)}.modal{width:95%;padding:var(--space-6)}}.lang-switcher-row{display:flex;justify-content:center;margin-bottom:var(--space-4)}.lang-switcher-row .lang-switcher{display:inline-flex}.card-footer-links{text-align:center;margin-top:var(--space-4);display:flex;flex-direction:column;gap:var(--space-2);align-items:center}.card-footer-hint{font-size:var(--font-size-sm);color:var(--gray-500)}.btn-link{color:var(--brand-sky);font-weight:var(--font-weight-bold);background:none;border:none;cursor:pointer;font-family:var(--font-family);font-size:var(--font-size-sm);text-decoration:underline;padding:0}.btn-link:hover{opacity:.8}.btn-back-home{font-size:var(--font-size-sm)}.modal-overlay{display:none}.modal-overlay.modal-overlay--open{display:flex}.onboard-page{min-height:100vh;padding:var(--space-6) var(--space-4);align-items:flex-start;background:#f0f4fa;display:flex;justify-content:center}.nav-brand-school{font-size:var(--font-size-sm);color:var(--gray-500);font-weight:500}.nav-brand-name{font-size:var(--font-size-lg);font-weight:800;color:var(--brand-navy)}.nav-brand-row{display:flex;align-items:center;gap:6px}.app-loader{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;background:#f5f6fa;font-family:var(--font-family)}.app-loader__logo{margin-bottom:20px;animation:spin 2s linear infinite}.app-loader__title{font-size:1.4rem;font-weight:800;color:#1a3a5c}.app-loader__subtitle{font-size:.9rem;color:#718096;margin-top:8px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.periods-hint{color:#6b7280;font-size:12px;margin-top:4px;display:block}.register-card-title{font-size:var(--font-size-xl)}.login-card.register-card{max-width:480px}.notification-dropdown{display:none}.notification-dropdown.notification-dropdown--open{display:block}@keyframes cardShake{0%,to{transform:translate(0)}20%{transform:translate(-8px)}40%{transform:translate(8px)}60%{transform:translate(-5px)}80%{transform:translate(5px)}}.login-card.card--shake{animation:cardShake .35s ease both!important}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--brand-gradient);position:relative;overflow:hidden}.login-page:before{content:"";position:absolute;top:-50%;right:-30%;width:600px;height:600px;background:radial-gradient(circle,rgba(79,195,247,.15) 0%,transparent 70%);border-radius:50%;animation:pulse 6s ease-in-out infinite}.login-page:after{content:"";position:absolute;bottom:-40%;left:-20%;width:500px;height:500px;background:radial-gradient(circle,rgba(255,255,255,.08) 0%,transparent 70%);border-radius:50%;animation:pulse 8s ease-in-out infinite reverse}.login-card{background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);padding:var(--space-10);width:90%;max-width:420px;position:relative;z-index:1;animation:slideUp var(--transition-slow)}.login-logo{text-align:center;margin-bottom:var(--space-8)}.login-logo img{height:80px;margin:0 auto var(--space-4)}.login-logo h1{font-size:var(--font-size-2xl);font-weight:var(--font-weight-extra-bold);color:var(--brand-navy);margin-bottom:var(--space-1)}.login-logo p{font-size:var(--font-size-sm);color:var(--gray-500)}.login-form{display:flex;flex-direction:column;gap:var(--space-5)}.login-form .input-group .input-wrapper{position:relative}.login-form .input-group .input-wrapper .input{width:100%;padding-right:var(--space-12)}.login-form .input-group .input-wrapper .input-icon{position:absolute;right:var(--space-4);top:50%;transform:translateY(-50%);color:var(--gray-400);font-size:var(--font-size-lg)}.login-role-selector{display:flex;gap:var(--space-2);background:var(--gray-100);border-radius:var(--radius-md);padding:var(--space-1)}.login-role-btn{flex:1;padding:var(--space-3) var(--space-4);border-radius:var(--radius-sm);font-weight:var(--font-weight-medium);color:var(--gray-500);transition:all var(--transition-fast);text-align:center}.login-role-btn.active{background:var(--white);color:var(--brand-navy);box-shadow:var(--shadow-sm)}.login-role-btn:hover:not(.active){color:var(--gray-700)}.login-btn{width:100%;padding:var(--space-4);font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);border-radius:var(--radius-md);background:var(--brand-gradient);color:var(--white);box-shadow:var(--shadow-md);transition:all var(--transition-fast);position:relative;overflow:hidden}.login-btn:hover{box-shadow:var(--shadow-glow);transform:translateY(-2px)}.login-btn:active{transform:translateY(0)}.login-btn:after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s}.login-btn:hover:after{left:100%}.login-error{background:var(--status-absent-bg);color:var(--status-absent);border:1px solid var(--status-absent-border);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:var(--font-size-sm);text-align:center;animation:slideDown var(--transition-fast);display:none}.login-error.show{display:block}.login-demo-hint{text-align:center;font-size:var(--font-size-xs);color:var(--gray-500);margin-top:var(--space-4);padding:var(--space-3);background:var(--gray-50);border-radius:var(--radius-sm);line-height:1.8}.login-demo-hint strong{color:var(--brand-navy)}.login-page{padding:var(--space-8) var(--space-4)}.onboard-card{background:#fff;border-radius:var(--radius-xl);box-shadow:0 20px 60px #00000026;width:90%;max-width:620px;margin:0 auto;overflow:hidden;position:relative;z-index:1;animation:slideUp var(--transition-slow)}.onboard-header{background:linear-gradient(135deg,#1a3a5c,#2d5a8c 55%,#4fc3f7);padding:var(--space-8) var(--space-8) var(--space-6);text-align:center;color:#fff}.onboard-check{font-size:3rem;margin-bottom:var(--space-3);animation:countUp .5s ease}.onboard-header h2{font-size:var(--font-size-xl);font-weight:800;color:#fff;margin-bottom:var(--space-2)}.onboard-header p{font-size:var(--font-size-sm);color:#ffffffd9}.onboard-header code{background:#fff3;padding:2px 10px;border-radius:6px;font-family:monospace;font-size:1rem;font-weight:700}.onboard-steps-title{font-size:var(--font-size-base);font-weight:800;color:#1a3a5c;padding:var(--space-5) var(--space-6) var(--space-3);border-bottom:2px solid #f0f4fa}.onboard-steps{padding:var(--space-4) var(--space-6) 0;display:flex;flex-direction:column;gap:var(--space-4)}.onboard-step{display:flex;flex-direction:column;gap:6px}.onboard-step-num{font-size:10px;font-weight:800;color:#4fc3f7;text-transform:uppercase;letter-spacing:.08em}.onboard-step-body{display:flex;align-items:flex-start;gap:var(--space-3);background:#f8fafd;border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);border-right:4px solid #4fc3f7}.onboard-step-icon{font-size:1.5rem;flex-shrink:0;line-height:1;margin-top:2px}.onboard-step-body h4{font-size:var(--font-size-sm);font-weight:800;color:#1a3a5c;margin-bottom:4px}.onboard-step-body p{font-size:var(--font-size-sm);color:#4b5563;line-height:1.55;margin:0}.onboard-tip{display:flex;align-items:flex-start;gap:var(--space-3);margin:var(--space-5) var(--space-6) 0;background:#fffbeb;border:1px solid #fde68a;border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);font-size:var(--font-size-sm);color:#78350f;line-height:1.55}.onboard-tip-icon{font-size:1.2rem;flex-shrink:0}.onboard-card .login-btn{margin:var(--space-5) var(--space-6) var(--space-6);width:calc(100% - var(--space-12))}.periods-selector{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-2);margin-top:6px}.period-option{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-3) var(--space-2);border:2px solid #e5e7eb;border-radius:var(--radius-md);background:#f9fafb;cursor:pointer;transition:all .2s;font-family:var(--font-family);gap:2px}.period-option:hover{border-color:#93c5fd;background:#eff6ff}.period-option.active{border-color:#2d5a8c;background:linear-gradient(135deg,#1a3a5c,#2d5a8c);box-shadow:0 4px 12px #2d5a8c4d}.period-num{font-size:1.6rem;font-weight:900;color:#374151;line-height:1}.period-option.active .period-num{color:#fff}.period-lbl{font-size:10px;font-weight:600;color:#6b7280;letter-spacing:.03em}.period-option.active .period-lbl{color:#ffffffd9}.dashboard-page{min-height:100vh;background:#f5f6fa;padding-top:64px}.top-nav{background:var(--white);height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 var(--space-8);box-shadow:0 1px 3px #0000000f;position:fixed;top:0;left:0;right:0;z-index:100}.nav-brand{display:flex;align-items:center;gap:var(--space-2);font-size:var(--font-size-base);font-weight:800;color:var(--brand-navy);order:-1;text-decoration:none;position:relative}.nav-brand svg{flex-shrink:0}.nav-links{display:flex;align-items:center;gap:var(--space-1)}.nav-link{padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--gray-500);cursor:pointer;transition:all .2s;text-decoration:none}.nav-link:hover{color:var(--brand-navy);background:#f0f7ff}.nav-link.active{color:var(--brand-navy);background:#4fc3f71a;font-weight:var(--font-weight-bold)}.nav-link.logout{color:var(--gray-400)}.nav-link.logout:hover{color:#e53e3e;background:#fff5f5}.nav-user{display:flex;align-items:center;gap:var(--space-3);font-size:var(--font-size-sm);color:var(--gray-700);position:relative}.user-role{font-size:var(--font-size-xs);color:var(--gray-400)}.user-avatar{width:36px;height:36px;border-radius:var(--radius-full);background:var(--brand-gradient);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:var(--font-weight-bold);font-size:var(--font-size-sm)}.user-menu{position:relative}.user-menu-trigger{border:none;cursor:pointer}.user-menu-trigger:focus-visible{outline:2px solid #4fc3f7;outline-offset:2px}.user-menu-dropdown{position:absolute;top:44px;left:0;right:auto;min-width:180px;max-width:min(220px,calc(100vw - 24px));background:#fff;border:1px solid #e2e8f0;border-radius:12px;box-shadow:0 10px 28px #0f172a26;padding:6px;z-index:210;display:none}html[dir=ltr] .user-menu-dropdown{left:auto;right:0}.user-menu-dropdown.user-menu-dropdown--open{display:block}.user-menu-item{width:100%;border:none;background:transparent;display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:8px;color:#334155;font-size:13px;font-weight:700;cursor:pointer;text-align:right}html[dir=ltr] .user-menu-item{text-align:left}.user-menu-item:hover{background:#f1f5f9}.user-menu-item.danger{color:#dc2626}.user-menu-item.danger:hover{background:#fef2f2}.bot-status-tag{display:inline-flex;align-items:center;gap:6px;padding:4px 8px;border:1px solid var(--gray-200);border-radius:999px;background:#f8fafc;color:var(--gray-500)}.status-dot-mini{width:8px;height:8px;border-radius:50%;background:#94a3b8}.status-dot-mini.green{background:#22c55e}.status-dot-mini.red{background:#ef4444}.notification-bell{width:38px;height:38px;border-radius:var(--radius-full);background:#f0f7ff;display:flex;align-items:center;justify-content:center;font-size:1.25rem;cursor:pointer;position:relative;color:var(--gray-400);transition:all .2s}.notification-bell:hover{background:#e0efff}.notif-badge{position:absolute;top:2px;right:2px;width:16px;height:16px;border-radius:var(--radius-full);background:#e53e3e;color:#fff;font-size:9px;font-weight:var(--font-weight-bold);display:flex;align-items:center;justify-content:center}.notification-dropdown{position:absolute;top:50px;left:0;width:320px;background:#fff;border-radius:var(--radius-lg);box-shadow:0 10px 30px #00000026;z-index:150;max-height:400px;overflow-y:auto;padding:var(--space-4)}.notification-dropdown h4{font-size:var(--font-size-sm);color:var(--brand-navy);margin-bottom:var(--space-3);padding-bottom:var(--space-2);border-bottom:1px solid var(--gray-200)}.notif-item{padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);margin-bottom:var(--space-1);font-size:var(--font-size-xs);cursor:default}.notif-item.unread{background:#eff8ff}.notif-item p{margin:0;color:var(--gray-700)}.notif-item small{color:var(--gray-400)}.notif-empty{text-align:center;color:var(--gray-400);font-size:var(--font-size-sm);padding:var(--space-6)}.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-6);padding:var(--space-6) var(--space-8);max-width:1400px;margin:0 auto}.stat-card{background:var(--white);border-radius:var(--radius-xl);padding:var(--space-6) var(--space-5);box-shadow:0 2px 8px #0000000a;text-align:center;position:relative;overflow:hidden;transition:transform var(--transition-bounce),box-shadow var(--transition-base);border:1px solid rgba(0,0,0,.04);animation:fadeInUp .5s cubic-bezier(.16,1,.3,1) both}.stat-card:nth-child(1){animation-delay:.1s}.stat-card:nth-child(2){animation-delay:.2s}.stat-card:nth-child(3){animation-delay:.3s}.stat-card:hover{transform:translateY(-6px) scale(1.02);box-shadow:0 16px 32px #00000014}.stat-bar{position:absolute;top:0;right:0;left:0;height:4px;border-radius:var(--radius-xl) var(--radius-xl) 0 0}.stat-bar.green{background:#48bb78}.stat-bar.red{background:#fc8181}.stat-bar.blue{background:#63b3ed}.stat-value{font-size:3rem;font-weight:800;line-height:1.1;margin:var(--space-3) 0 var(--space-2)}.stat-green .stat-value{color:#2f855a}.stat-red .stat-value{color:#c53030}.stat-blue .stat-value{color:#2b6cb0}.stat-label{font-size:var(--font-size-sm);color:var(--gray-500);font-weight:var(--font-weight-medium)}.stat-icon{position:absolute;bottom:var(--space-3);left:var(--space-3);font-size:2rem;opacity:.06}.dashboard-content{display:grid;grid-template-columns:1fr 1.6fr;gap:var(--space-5);padding:0 var(--space-8) var(--space-8);max-width:1400px;margin:0 auto}.panel{background:var(--white);border-radius:var(--radius-xl);box-shadow:0 2px 8px #0000000a;overflow:hidden;border:1px solid rgba(0,0,0,.04);animation:fadeInUp .6s cubic-bezier(.16,1,.3,1) both;animation-delay:.2s}.panel h3{font-size:var(--font-size-base);font-weight:var(--font-weight-bold);color:var(--brand-navy);padding:var(--space-5) var(--space-5) var(--space-2)}.panel small{display:block;font-size:var(--font-size-xs);color:var(--gray-400);padding:0 var(--space-5) var(--space-3)}.teacher-panel-header{display:grid;grid-template-columns:1fr auto;gap:var(--space-4);padding:var(--space-3) var(--space-5);font-size:var(--font-size-xs);color:var(--gray-500);font-weight:var(--font-weight-bold);border-bottom:2px solid var(--gray-100);background:var(--gray-50)}.teacher-list{max-height:520px;overflow-y:auto}.teacher-row{display:grid;grid-template-columns:1fr 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