.teacher-layout{background-color:var(--bg-color,#f1f5f9);flex-direction:column;width:100%;min-height:100vh;display:flex}.teacher-topbar{color:#fff;z-index:100;background-color:#1e3a8a;justify-content:space-between;align-items:center;width:100%;padding:15px 40px;display:flex;position:sticky;top:0;box-shadow:0 4px 10px #0000001a}.teacher-topbar h1{letter-spacing:-.5px;color:#38bdf8;margin:0;font-size:1.5rem;font-weight:900}.teacher-nav-container{background-color:#fff;border-bottom:1px solid #cbd5e1;width:100%;padding:0 40px}.teacher-nav-content{gap:20px;max-width:1200px;margin:0 auto;display:flex}.t-nav-btn{color:#64748b;cursor:pointer;background:0 0;border:none;border-bottom:3px solid #0000;padding:15px 10px;font-size:1rem;font-weight:600;transition:all .2s}.t-nav-btn:hover{color:#1e3a8a}.t-nav-btn.active{color:#1e3a8a;border-bottom-color:#38bdf8}.teacher-main{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:40px}@media (width<=768px){.teacher-topbar{padding:15px 20px}.teacher-nav-container{padding:0 20px}.teacher-main{padding:20px}.teacher-nav-content{white-space:nowrap;overflow-x:auto}}:root{--font-family-sans:"Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-family-ui:"Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-size-xs:.75rem;--font-size-sm:.85rem;--font-size-md:1rem;--font-size-lg:1.1rem;--font-size-xl:1.3rem;--font-size-2xl:1.6rem;--font-weight-medium:600;--font-weight-bold:700;--font-weight-extrabold:800;--font-weight-black:900;--letter-spacing-tight:-.04em;--letter-spacing-wide:.08em;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-7:30px;--space-8:40px;--space-9:48px;--radius-xs:6px;--radius-sm:8px;--radius-md:12px;--radius-lg:15px;--radius-xl:20px;--radius-2xl:24px;--radius-card:18px;--radius-panel:22px;--radius-hero:26px;--radius-pill:999px;--shadow-xs:0 2px 6px #0f172a0a;--shadow-sm:0 8px 18px #0f172a0f;--shadow-md:0 10px 24px #0f172a1a;--shadow-lg:0 14px 28px #0f172a24;--shadow-xl:0 18px 34px #0f172a14;--shadow-2xl:0 24px 44px #0f172a2e;--shadow-primary:0 10px 24px #2563eb29;--shadow-primary-hover:0 14px 28px #2563eb38;--shadow-success:0 10px 22px #10b9812e;--shadow-danger:0 10px 22px #ef44442e;--shadow-danger-hover:0 14px 28px #ef444447;--shadow-warm:0 18px 34px #ea580c14;--shadow-warm-hover:0 16px 28px #ea580c1f;--shadow-nav-active:0 12px 26px #0f172a2e;--shadow-topbar:0 2px 10px #0f172a1a;--shadow-bottomnav:0 -2px 10px #0f172a1a;--shadow-inset-xs:inset 0 1px 2px #0f172a0a;--color-bg-page:#f5f7fb;--color-surface:#fff;--color-surface-alt:#f8fafc;--color-surface-soft:#f1f5f9;--color-surface-strong:#e2e8f0;--color-text:#0f172a;--color-text-soft:#334155;--color-text-subtle:#475569;--color-text-muted:#64748b;--color-text-faint:#94a3b8;--color-border:#e2e8f0;--color-border-strong:#cbd5e1;--color-border-accent:#dbeafe;--color-overlay:#0f172acc;--color-overlay-soft:#0f172a2e;--color-overlay-soft-strong:#0f172a38;--color-overlay-soft-hover:#0f172a47;--color-surface-alpha-14:#ffffff24;--color-surface-alpha-16:#ffffff29;--color-surface-alpha-18:#ffffff2e;--color-surface-alpha-22:#ffffff38;--color-surface-alpha-24:#ffffff3d;--color-surface-alpha-28:#ffffff47;--color-surface-alpha-38:#ffffff61;--color-surface-alpha-68:#ffffffad;--color-surface-alpha-72:#ffffffb8;--color-surface-alpha-82:#ffffffd1;--color-surface-alpha-0:#fff0;--color-border-subtle:#94a3b829;--color-primary-alpha-08:#38bdf814;--color-primary-alpha-14:#38bdf824;--color-primary-alpha-18:#38bdf82e;--color-primary-alpha-20:#38bdf833;--color-hero-copy:#eff6ffd1;--color-hero-copy-strong:#ecfeff;--color-hero-copy-soft:#eff6ffc2;--color-primary:#2563eb;--color-primary-strong:#1d4ed8;--color-primary-stronger:#1e40af;--color-primary-soft:#eff6ff;--color-primary-border:#bfdbfe;--color-primary-border-strong:#93c5fd;--color-primary-accent:#38bdf8;--color-primary-ink:#1d4ed8;--color-sidebar:#0f172a;--color-sidebar-strong:#1e293b;--color-sidebar-accent:#1e3a8a;--color-sidebar-text:#e0f2fe;--color-info-soft:#e0f2fe;--color-info-border:#7dd3fc;--color-info-ink:#0369a1;--color-teal-strong:#0f766e;--color-cyan-soft:#ccfbf1;--color-cyan-bright:#67e8f9;--color-success:#059669;--color-success-strong:#10b981;--color-success-soft:#f0fdf4;--color-success-border:#a7f3d0;--color-success-border-strong:#bbf7d0;--color-warning:#d97706;--color-warning-soft:#fff7ed;--color-warning-soft-alt:#ffedd5;--color-warning-soft-strong:#fffdf4;--color-warning-border:#fdba74;--color-warning-border-strong:#fed7aa;--color-warning-border-soft:#fde68a;--color-warning-ink:#c2410c;--color-danger:#dc2626;--color-danger-strong:#ef4444;--color-danger-soft:#fef2f2;--color-danger-soft-light:#fff5f5;--color-danger-soft-alt:#fff8f8;--color-danger-soft-muted:#fff7f7;--color-danger-soft-rose:#fff1f2;--color-danger-border:#fecaca;--color-danger-ink:#7f1d1d;--color-danger-ink-soft:#9f1239;--gradient-primary:linear-gradient(135deg, var(--color-primary), var(--color-primary-strong));--gradient-primary-soft:linear-gradient(135deg, var(--color-surface), var(--color-primary-soft));--gradient-primary-soft-alt:linear-gradient(180deg, var(--color-surface), #f8fbff);--gradient-danger:linear-gradient(135deg, #ef4444, #dc2626);--gradient-success:linear-gradient(135deg, #10b981, var(--color-success));--gradient-neutral:linear-gradient(135deg, var(--color-surface), var(--color-surface-alt));--gradient-sidebar-hover:linear-gradient(135deg, #1e293bf5, #1e3a8ad6);--gradient-sidebar-active:linear-gradient(135deg, var(--color-sidebar-strong), var(--color-sidebar-accent));--gradient-hero-admin:linear-gradient(135deg, var(--color-sidebar), var(--color-primary-strong) 58%, var(--color-info-border) 140%);--gradient-hero-teacher:linear-gradient(135deg, var(--color-sidebar), var(--color-teal-strong) 62%, var(--color-cyan-bright) 140%);--gradient-hero-student:linear-gradient(135deg, var(--color-sidebar), var(--color-primary-strong) 62%, var(--color-primary-border-strong) 140%);--gradient-stat-surface:linear-gradient(180deg, var(--color-surface), var(--color-surface-alt));--gradient-warning-surface:linear-gradient(180deg, var(--color-warning-soft-strong), var(--color-warning-soft));--gradient-danger-surface:linear-gradient(180deg, var(--color-danger-soft-alt), var(--color-surface));--gradient-danger-surface-alt:linear-gradient(180deg, var(--color-danger-soft-alt), var(--color-danger-soft-rose));--gradient-warning-panel:linear-gradient(180deg, var(--color-warning-soft), var(--color-surface));--gradient-feature-surface:linear-gradient(180deg, var(--color-surface), #faf5ff);--primary:var(--color-sidebar-accent);--secondary:var(--color-primary);--success:#10b981;--danger:#ef4444;--warning:#f59e0b;--bg-color:var(--color-bg-page);--text-main:var(--color-text);--text-muted:var(--color-text-muted);--btn-radius:var(--radius-md);--btn-shadow:var(--shadow-md);--btn-shadow-soft:var(--shadow-sm);--btn-shadow-hover:var(--shadow-lg)}*{box-sizing:border-box;font-family:Segoe UI,Roboto,Helvetica,Arial,sans-serif}body{background-color:var(--bg-color);color:var(--text-main);margin:0}body:has(.modal-overlay){overflow:hidden}.login-logo{object-fit:contain;max-width:220px;height:auto;margin:0 auto 15px;display:block}.panel-logo{object-fit:contain;max-width:100%;max-height:60px}.sidebar-logo{text-align:center;padding:20px}.app-login-page{background:linear-gradient(135deg, #0f172a 0%, var(--primary) 100%);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{background:#fff;border-radius:20px;width:100%;max-width:400px;padding:40px;position:relative;box-shadow:0 20px 40px #0003}.login-title{color:var(--primary);text-align:center;margin:0 0 5px;font-size:2.5rem}.login-subtitle{text-align:center;color:var(--text-muted);margin-bottom:30px}.role-grid{grid-template-columns:1fr 1fr;gap:15px;margin:20px 0;display:grid}.role-box{cursor:pointer;background:#f8fafc;border:2px solid #e2e8f0;border-radius:15px;padding:20px;transition:all .2s}.role-box:hover{border-color:var(--secondary);background:#eff6ff}.role-modal{background:#fff;border-radius:20px;width:100%;max-width:500px;padding:30px}.input-base{width:100%;color:var(--text-main);background-color:#f8fafc;border:1.5px solid #cbd5e1;border-radius:10px;outline:none;margin-bottom:15px;padding:12px 15px;font-size:1rem;transition:all .2s}.input-base:focus{border-color:var(--secondary);background-color:#fff;box-shadow:0 0 0 3px #3b82f626}.password-container{width:100%;margin-bottom:15px;position:relative}.password-container .input-base{margin-bottom:0;padding-right:45px}.toggle-password-btn{cursor:pointer;color:var(--text-muted);background:0 0;border:none;padding:0;font-size:1.2rem;position:absolute;top:50%;right:15px;transform:translateY(-50%)}.toggle-password-btn:hover{color:var(--text-main)}.btn-primary,.btn-ghost,.btn-danger,.btn-small,.btn-google{border-radius:var(--btn-radius);letter-spacing:-.01em;cursor:pointer;min-height:42px;font-weight:700;transition:transform .18s,box-shadow .18s,filter .18s,background-color .18s,color .18s,border-color .18s;position:relative}.btn-primary:hover:not(:disabled),.btn-ghost:hover:not(:disabled),.btn-danger:hover:not(:disabled),.btn-small:hover:not(:disabled),.btn-google:hover:not(:disabled){box-shadow:var(--btn-shadow-hover);filter:saturate(1.04);transform:translateY(-1px)}.btn-primary:active:not(:disabled),.btn-ghost:active:not(:disabled),.btn-danger:active:not(:disabled),.btn-small:active:not(:disabled),.btn-google:active:not(:disabled){transform:translateY(0)}.btn-primary:focus-visible,.btn-ghost:focus-visible,.btn-danger:focus-visible,.btn-small:focus-visible,.btn-google:focus-visible{box-shadow:0 0 0 4px #2563eb29, var(--btn-shadow);outline:none}.btn-primary{background:linear-gradient(135deg, var(--secondary), #1d4ed8);color:#fff;width:100%;box-shadow:var(--btn-shadow);border:1px solid #1d4ed8;justify-content:center;align-items:center;gap:8px;padding:12px 20px;font-size:1rem;display:flex}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg,#1d4ed8,#1e40af)}.btn-ghost{width:100%;color:var(--text-muted);box-shadow:var(--btn-shadow-soft);background:linear-gradient(135deg,#fff,#f8fafc);border:1px solid #cbd5e1;justify-content:center;align-items:center;gap:8px;padding:12px 20px;font-size:1rem;display:flex}.btn-ghost:hover:not(:disabled){color:var(--text-main);border-color:#94a3b8}.btn-danger{background:linear-gradient(135deg, var(--danger), #dc2626);color:#fff;box-shadow:var(--btn-shadow);border:1px solid #dc2626;padding:10px 20px}.btn-danger:hover:not(:disabled){background:linear-gradient(135deg,#dc2626,#b91c1c)}.btn-small{color:#1e293b;box-shadow:var(--btn-shadow-soft);background:linear-gradient(135deg,#e2e8f0,#cbd5e1);border:1px solid #0000;padding:8px 15px;font-size:.85rem}.btn-google{width:100%;color:var(--text-main);box-shadow:var(--btn-shadow-soft);background:linear-gradient(135deg,#fff,#f8fafc);border:1px solid #cbd5e1;justify-content:center;align-items:center;gap:10px;padding:12px;display:flex}.btn-google:hover:not(:disabled){border-color:#94a3b8}.btn-primary:disabled,.btn-ghost:disabled,.btn-google:disabled,.btn-small:disabled,.btn-danger:disabled{opacity:.68;cursor:not-allowed;box-shadow:none;filter:none}.link-text{color:var(--secondary);cursor:pointer;font-weight:600;text-decoration:none}.link-text:hover{text-decoration:underline}.spinner{border:3px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:1s linear infinite spin}.spinner-dark{border:3px solid #0000001a;border-top:3px solid var(--text-muted)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.card{background:#fff;border:1px solid #e2e8f0;border-radius:15px;margin-bottom:20px;padding:25px;box-shadow:0 10px 25px #00000005}.badge-status{text-transform:uppercase;letter-spacing:.5px;border-radius:8px;padding:4px 10px;font-size:.75rem;font-weight:700;display:inline-block}.grid-2{grid-template-columns:1fr 1fr;gap:20px;display:grid}.grid-3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;display:grid}.grid-finance{grid-template-columns:1.5fr 1fr;gap:20px;display:grid}.alert-banner{border-radius:15px;align-items:center;gap:15px;margin-bottom:20px;padding:20px;display:flex;box-shadow:0 4px 6px #0000000d}.modal-overlay{z-index:2000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0f172abf;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal-box{background:#fff;border-radius:20px;width:100%;max-width:700px;max-height:90vh;padding:30px;overflow-y:auto;box-shadow:0 25px 50px #00000040}.modal-card{background:#fff;border-radius:20px;width:100%;max-width:500px;padding:40px;box-shadow:0 20px 40px #0003}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media (width<=768px){.flex-mobile-col{flex-direction:column!important;align-items:stretch!important;gap:10px!important}.grid-2,.grid-3,.grid-finance,.student-profile-grid{grid-template-columns:1fr!important}.card,.modal-box,.modal-card{padding:20px}.role-grid{grid-template-columns:1fr}}.admin-layout{background-color:var(--color-bg-page);height:100vh;font-family:var(--font-family-sans);display:flex}.admin-sidebar{background-color:var(--color-sidebar);width:280px;color:var(--color-surface);padding:var(--space-6) var(--space-5);flex-direction:column;flex-shrink:0;transition:all .3s;display:flex;overflow-x:hidden}.logo-area{font-size:var(--font-size-2xl);font-weight:var(--font-weight-black);margin-bottom:var(--space-8);color:var(--color-primary-accent);letter-spacing:-.5px}.nav-menu{gap:var(--space-3);flex-direction:column;flex:1;display:flex;overflow:hidden auto}.nav-item{color:var(--color-text-faint);text-align:left;cursor:pointer;border-radius:var(--radius-md);font-size:var(--font-size-md);font-weight:var(--font-weight-medium);background:0 0;border:1px solid #0000;padding:14px 15px;transition:transform .18s,background-color .18s,color .18s,box-shadow .18s,border-color .18s}.nav-item:hover{background:var(--gradient-sidebar-hover);color:var(--color-surface);border-color:var(--color-primary-alpha-14);box-shadow:inset 0 0 0 1px var(--color-primary-alpha-08);transform:translate(2px)}.nav-item.active{background:var(--gradient-sidebar-active);color:var(--color-sidebar-text);font-weight:var(--font-weight-bold);border-color:var(--color-primary-alpha-20);box-shadow:var(--shadow-nav-active)}.logout-btn{margin-top:var(--space-5);background:var(--gradient-danger);color:var(--color-surface);border:1px solid var(--color-danger);border-radius:var(--radius-md);cursor:pointer;font-weight:var(--font-weight-bold);font-size:var(--font-size-md);box-shadow:var(--shadow-md);padding:15px;transition:transform .18s,box-shadow .18s,filter .18s}.logout-btn:hover{box-shadow:var(--shadow-lg);filter:saturate(1.04);transform:translateY(-1px)}.content-area{padding:var(--space-8);background-color:var(--color-bg-page);flex:1;overflow-y:auto}.card{background-color:var(--color-surface);padding:var(--space-7);border-radius:var(--radius-xl);box-shadow:var(--shadow-xs);border:1px solid var(--color-border);margin-bottom:var(--space-5)}.grid-3{gap:var(--space-5);grid-template-columns:repeat(3,1fr);display:grid}.grid-2{gap:var(--space-5);grid-template-columns:1fr 1fr;display:grid}.grid-finance{gap:var(--space-5);grid-template-columns:2fr 1fr;display:grid}.btn-primary{padding:var(--space-3) var(--space-5);background:var(--gradient-primary);color:var(--color-surface);border:1px solid var(--color-primary-strong);border-radius:var(--radius-md);font-weight:var(--font-weight-bold);cursor:pointer;text-align:center;box-shadow:var(--shadow-primary);transition:transform .18s,box-shadow .18s,filter .18s}.btn-primary:hover{background:linear-gradient(135deg, var(--color-primary-strong), var(--color-primary-stronger));box-shadow:var(--shadow-primary-hover);transform:translateY(-1px)}.btn-danger{background:var(--gradient-danger);color:var(--color-surface);padding:var(--space-2) 15px;border:1px solid var(--color-danger);border-radius:var(--radius-md);cursor:pointer;font-weight:var(--font-weight-bold);box-shadow:var(--shadow-danger)}.btn-small{padding:var(--space-2) 15px;background:linear-gradient(135deg, var(--color-surface-strong), var(--color-border-strong));border:1px solid var(--color-border-strong);border-radius:var(--radius-md);cursor:pointer;font-weight:var(--font-weight-bold);color:var(--color-text-soft);box-shadow:var(--shadow-sm);transition:transform .18s,box-shadow .18s,filter .18s}.btn-ghost{background:var(--gradient-neutral);border:1px solid var(--color-border-strong);color:var(--color-text-muted);cursor:pointer;font-weight:var(--font-weight-bold);font-size:var(--font-size-md);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:transform .18s,box-shadow .18s,color .18s,border-color .18s}.btn-small:hover,.btn-ghost:hover,.btn-danger:hover{box-shadow:var(--shadow-lg);transform:translateY(-1px)}.input-base{width:100%;padding:var(--space-3);border:1px solid var(--color-border-strong);box-sizing:border-box;font-size:var(--font-size-md);border-radius:10px;outline:none;margin-bottom:15px}.input-base:focus{border-color:var(--color-primary-accent)}.badge-status{padding:var(--space-1) 10px;border-radius:var(--radius-sm);font-size:var(--font-size-xs);font-weight:var(--font-weight-bold)}.modal-overlay{background-color:var(--color-overlay);z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-box{background-color:var(--color-surface);padding:var(--space-7);border-radius:var(--radius-xl);width:90%;max-width:900px;max-height:90vh;overflow-y:auto}.mobile-top-bar,.mobile-bottom-nav{display:none}.dashboard-shell{flex-direction:column;gap:22px;display:flex}.dashboard-kicker{border-radius:var(--radius-pill);background:var(--color-surface-alpha-14);color:inherit;font-size:.72rem;font-weight:var(--font-weight-extrabold);letter-spacing:var(--letter-spacing-wide);text-transform:uppercase;align-items:center;padding:6px 12px;display:inline-flex}.dashboard-hero{padding:var(--space-7);border-radius:var(--radius-hero);background:var(--gradient-hero-admin);color:var(--color-sidebar-text);box-shadow:var(--shadow-2xl);justify-content:space-between;align-items:flex-end;gap:18px;display:flex;position:relative;overflow:hidden}.dashboard-hero:after{content:"";border-radius:var(--radius-pill);background:radial-gradient(circle, var(--color-surface-alpha-28) 0%, var(--color-surface-alpha-0) 72%);pointer-events:none;width:220px;height:220px;position:absolute;inset:auto -60px -90px auto}.dashboard-hero-copy{z-index:1;max-width:680px;position:relative}.dashboard-hero-copy h2{letter-spacing:-.04em;margin:14px 0 10px;font-size:clamp(1.9rem,3vw,2.8rem);line-height:1.02}.dashboard-hero-copy p{max-width:620px;color:var(--color-hero-copy);margin:0;line-height:1.6}.dashboard-hero-actions{z-index:1;flex-wrap:wrap;gap:10px;display:flex;position:relative}.dashboard-hero-btn{border:1px solid var(--color-surface-alpha-24);background:var(--color-overlay-soft);color:var(--color-sidebar-text);padding:var(--space-3) 18px;font-weight:var(--font-weight-bold);cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:14px;transition:transform .18s,background-color .18s,border-color .18s}.dashboard-hero-btn:hover{background:var(--color-overlay-soft-hover);border-color:var(--color-surface-alpha-38);transform:translateY(-1px)}.dashboard-hero-btn-primary{background:linear-gradient(135deg, var(--color-surface), var(--color-primary-border));color:var(--color-text);border-color:var(--color-surface-alpha-72)}.dashboard-stat-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;display:grid}.dashboard-stat-card{background:var(--gradient-stat-surface);border:1px solid var(--color-border-accent);border-radius:var(--radius-panel);box-shadow:var(--shadow-xl);padding:22px}.dashboard-stat-card-accent{border-color:var(--color-primary-border)}.dashboard-stat-card-warm{border-color:var(--color-warning-border-soft);background:var(--gradient-warning-surface)}.dashboard-stat-card-alert{border-color:var(--color-danger-border);background:var(--gradient-danger-surface-alt)}.dashboard-stat-label{font-size:.78rem;font-weight:var(--font-weight-extrabold);letter-spacing:var(--letter-spacing-wide);text-transform:uppercase;color:var(--color-text-muted);display:block}.dashboard-stat-value{color:var(--color-text);letter-spacing:-.05em;margin-top:12px;font-size:clamp(2rem,4vw,2.6rem);line-height:1;display:block}.dashboard-stat-meta{color:var(--color-text-muted);margin-top:10px;line-height:1.5;display:block}.dashboard-main-grid{grid-template-columns:minmax(0,1.55fr) minmax(310px,1fr);align-items:start;gap:20px;display:grid}.dashboard-side-stack{flex-direction:column;gap:20px;display:flex}.dashboard-panel{margin-bottom:0}.dashboard-panel-head{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:18px;display:flex}.dashboard-panel-head h3{color:var(--color-text);letter-spacing:-.03em;margin:10px 0 0;font-size:1.3rem}.dashboard-panel-link{color:var(--color-primary);font-weight:var(--font-weight-extrabold);cursor:pointer;background:0 0;border:none;padding:0}.dashboard-room-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;display:grid}.dashboard-room-tile{background:linear-gradient(180deg, var(--color-surface-alt), var(--color-surface));border:1px solid var(--color-border-accent);border-radius:var(--radius-card);flex-direction:column;justify-content:space-between;min-height:146px;padding:18px;display:flex}.dashboard-room-tile-online{border-color:var(--color-success-border-strong);background:linear-gradient(180deg, var(--color-success-soft), var(--color-surface))}.dashboard-room-label{font-size:.82rem;font-weight:var(--font-weight-extrabold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-muted)}.dashboard-room-count{color:var(--color-text);letter-spacing:-.05em;font-size:2.3rem;line-height:1}.dashboard-room-meta{color:var(--color-text-muted);line-height:1.5}.dashboard-action-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.dashboard-action-tile{border:1px solid var(--color-border-accent);background:var(--gradient-primary-soft-alt);border-radius:var(--radius-card);text-align:left;cursor:pointer;min-height:128px;padding:16px;transition:transform .18s,box-shadow .18s,border-color .18s}.dashboard-action-tile:hover{border-color:var(--color-primary-border-strong);box-shadow:var(--shadow-primary);transform:translateY(-2px)}.dashboard-action-tile strong{color:var(--color-text);font-size:var(--font-size-md);margin-bottom:10px;display:block}.dashboard-action-tile span{color:var(--color-text-muted);font-size:.9rem;line-height:1.5}.dashboard-alert-panel{background:linear-gradient(180deg, var(--color-danger-soft-muted), var(--color-surface));border-color:var(--color-danger-border)}.dashboard-alert-list{flex-direction:column;gap:10px;display:flex}.dashboard-alert-item{border:1px solid var(--color-danger-border);border-left:4px solid var(--color-danger-strong);background:var(--color-surface);text-align:left;cursor:pointer;border-radius:16px;width:100%;padding:14px 16px;transition:transform .18s,box-shadow .18s,border-color .18s}.dashboard-alert-item:hover{box-shadow:var(--shadow-danger);transform:translateY(-1px)}.dashboard-alert-item strong{color:var(--color-danger-ink);line-height:1.45;display:block}.dashboard-alert-item small{color:var(--color-danger-ink-soft);margin-top:6px;line-height:1.45;display:block}.dashboard-empty-state{color:var(--color-text-muted);margin:0;line-height:1.6}.student-directory-shell{flex-direction:column;gap:20px;display:flex}.student-directory-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;display:flex}.student-directory-copy h2{color:var(--color-text);margin:10px 0 6px;font-size:clamp(1.5rem,2.5vw,2rem)}.student-directory-copy p{color:var(--color-text-muted);max-width:640px;margin:0;line-height:1.6}.student-directory-summary{flex-wrap:wrap;gap:12px;display:flex}.student-directory-summary-chip{border-radius:var(--radius-pill);background:var(--color-surface-alt);border:1px solid var(--color-border);font-size:.86rem;font-weight:var(--font-weight-bold);color:var(--color-text-soft);align-items:center;gap:8px;padding:10px 14px;display:inline-flex}.student-directory-grid{grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:16px;display:grid}.student-directory-card{border:1px solid var(--color-border-accent);border-radius:var(--radius-xl);background:var(--gradient-primary-soft-alt);box-shadow:var(--shadow-xl);overflow:hidden}.student-directory-card-muted{border-color:var(--color-border-strong);background:linear-gradient(180deg, var(--color-surface-alt), var(--color-surface-strong));box-shadow:none}.student-directory-card-top{border-bottom:1px solid var(--color-border-subtle);justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;display:flex}.student-directory-badge{font-size:.72rem;font-weight:var(--font-weight-extrabold);text-transform:uppercase;letter-spacing:var(--letter-spacing-wide);color:var(--color-text-muted)}.student-directory-status{border-radius:var(--radius-pill);font-size:.74rem;font-weight:var(--font-weight-extrabold);text-transform:uppercase;padding:6px 10px}.student-directory-body{gap:14px;padding:16px;display:flex}.student-directory-avatar{border-radius:var(--radius-card);width:56px;height:56px;font-weight:var(--font-weight-extrabold);color:var(--color-surface);background:linear-gradient(135deg, var(--color-primary), var(--color-primary-accent));flex-shrink:0;justify-content:center;align-items:center;display:flex}.student-directory-card-muted .student-directory-avatar{background:var(--color-text-faint);color:var(--color-surface-alt)}.student-directory-content{flex:1;min-width:0}.student-directory-name{color:var(--color-text);margin:0;font-size:1.08rem;line-height:1.3}.student-directory-subline{color:var(--color-text-muted);margin:5px 0 0;font-size:.86rem;line-height:1.5}.student-directory-chip-row{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.student-directory-chip{border-radius:var(--radius-pill);font-size:.74rem;font-weight:var(--font-weight-bold);border:1px solid var(--color-border-strong);color:var(--color-text-subtle);background:var(--color-surface-alpha-82);align-items:center;padding:5px 9px;display:inline-flex}.student-directory-contact{color:var(--color-text-muted);flex-direction:column;gap:5px;margin-top:12px;font-size:.84rem;display:flex}.student-directory-footer{padding:0 16px 16px}.student-directory-action{width:100%}@media (width<=768px){.admin-layout{flex-direction:column}.admin-sidebar{display:none}.content-area{padding:15px 15px 100px}.grid-3,.grid-2,.grid-finance{grid-template-columns:1fr;gap:15px}.card{padding:20px}.btn-primary,.btn-small,.btn-ghost,.btn-danger{width:100%;margin-top:5px}.modal-box{padding:20px}.flex-mobile-col{gap:10px;flex-direction:column!important;align-items:stretch!important}.mobile-top-bar{background-color:var(--color-sidebar);z-index:100;box-shadow:var(--shadow-topbar);justify-content:space-between;align-items:center;padding:15px 20px;display:flex;position:sticky;top:0}.mobile-bottom-nav{background-color:var(--color-surface);box-shadow:var(--shadow-bottomnav);border-top:1px solid var(--color-border);z-index:100;justify-content:space-around;padding:10px 0;display:flex;position:fixed;bottom:0;left:0;right:0;overflow-x:auto}.mobile-nav-btn{color:var(--color-text-muted);background:0 0;border:1px solid #0000;border-radius:14px;flex-direction:column;align-items:center;min-width:70px;padding:8px 10px;font-size:.7rem;font-weight:700;transition:background-color .18s,color .18s,border-color .18s;display:flex}.mobile-nav-btn.active{color:var(--color-primary);background:var(--color-primary-soft);border-color:var(--color-primary-border)}.dashboard-hero{align-items:flex-start;padding:22px}.dashboard-main-grid,.dashboard-action-grid{grid-template-columns:1fr}.student-directory-summary{width:100%}}.tp-layout{background-color:var(--color-surface-alt);min-height:100vh;font-family:var(--font-family-sans);display:flex}.tp-sidebar{background-color:var(--color-sidebar);z-index:100;width:260px;color:var(--color-surface);flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0}.tp-logo{font-size:1.8rem;font-weight:var(--font-weight-black);color:var(--color-primary-accent);letter-spacing:-.5px;padding:30px 20px}.tp-nav{flex-direction:column;flex:1;gap:5px;padding:10px;display:flex}.tp-nav-btn{text-align:left;color:var(--color-text-faint);font-size:1.05rem;font-weight:var(--font-weight-bold);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:14px;align-items:center;gap:15px;padding:15px 20px;transition:transform .18s,background-color .18s,color .18s,box-shadow .18s,border-color .18s;display:flex}.tp-nav-btn:hover{background:var(--gradient-sidebar-hover);color:var(--color-surface);border-color:var(--color-primary-alpha-14);box-shadow:inset 0 0 0 1px var(--color-primary-alpha-08);transform:translate(2px)}.tp-nav-btn.active{background:var(--gradient-sidebar-active);color:var(--color-sidebar-text);border-color:var(--color-primary-alpha-18);box-shadow:var(--shadow-nav-active)}.sidebar-footer{border-top:1px solid var(--color-sidebar-strong);text-align:center;padding:20px}.sidebar-footer p{color:var(--color-text-faint);font-size:var(--font-size-sm);font-weight:var(--font-weight-bold);margin-bottom:10px}.tp-logout-btn{background:var(--gradient-danger);width:100%;color:var(--color-surface);border:1px solid var(--color-danger);border-radius:var(--radius-md);font-weight:var(--font-weight-bold);cursor:pointer;box-shadow:var(--shadow-danger);padding:12px;transition:transform .18s,box-shadow .18s,filter .18s}.tp-logout-btn:hover{box-shadow:var(--shadow-danger-hover);filter:saturate(1.04);transform:translateY(-1px)}.tp-main{flex:1;width:calc(100% - 260px);margin-left:260px;padding:40px}.tp-dashboard-grid{grid-template-columns:2fr 1fr;align-items:start;gap:30px;display:grid}.tp-class-card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-xs);margin-bottom:15px;padding:20px}.tp-class-card-header{justify-content:space-between;align-items:center;display:flex}.tp-class-title{font-size:1.2rem;font-weight:var(--font-weight-bold);color:var(--color-sidebar-strong);align-items:center;gap:10px;display:flex}.tp-badge-vip{background-color:var(--color-info-soft);color:var(--color-info-ink);border-radius:var(--radius-xs);font-size:var(--font-size-xs);font-weight:var(--font-weight-bold);text-transform:uppercase;padding:3px 8px}.tp-class-subtitle{font-size:var(--font-size-sm);color:var(--color-text-muted);margin-top:5px}.tp-card-actions{gap:10px;display:flex}.btn-green-solid{background:var(--gradient-success);color:var(--color-surface);border:1px solid var(--color-success);border-radius:var(--radius-md);font-weight:var(--font-weight-bold);cursor:pointer;box-shadow:var(--shadow-success);padding:10px 20px;transition:transform .18s,box-shadow .18s,filter .18s}.btn-blue-light{background:linear-gradient(135deg, var(--color-info-soft), var(--color-primary-border));color:var(--color-info-ink);border:1px solid var(--color-info-border);border-radius:var(--radius-md);font-weight:var(--font-weight-bold);cursor:pointer;box-shadow:var(--shadow-primary);padding:10px 20px;transition:transform .18s,box-shadow .18s,filter .18s}.btn-green-solid:hover,.btn-blue-light:hover{box-shadow:var(--shadow-lg);filter:saturate(1.04);transform:translateY(-1px)}.tp-alerts-box{background:var(--gradient-warning-panel);border-radius:var(--radius-2xl);border:1px solid var(--color-warning-border-strong);box-shadow:var(--shadow-warm);padding:22px}.tp-alert-title{color:var(--color-danger);align-items:center;gap:10px;margin:0 0 20px;font-size:1.1rem;display:flex}.tp-alert-item{background-color:var(--color-surface);border-radius:var(--radius-sm);border:1px solid var(--color-danger-border);font-size:var(--font-size-sm);color:var(--color-danger-ink);box-shadow:var(--shadow-xs);border-left:4px solid var(--color-warning-ink);margin-bottom:10px;padding:15px}.library-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;display:grid}.tp-dashboard-shell{flex-direction:column;gap:22px;display:flex}.tp-dashboard-kicker{border-radius:var(--radius-pill);background:var(--color-surface-alpha-16);color:inherit;font-size:.72rem;font-weight:var(--font-weight-extrabold);letter-spacing:var(--letter-spacing-wide);text-transform:uppercase;align-items:center;padding:6px 12px;display:inline-flex}.tp-dashboard-kicker-light{background:var(--color-primary-soft);color:var(--color-primary-ink)}.tp-dashboard-kicker-warm{background:var(--color-warning-soft-alt);color:var(--color-warning-ink)}.tp-dashboard-hero{border-radius:var(--radius-hero);background:var(--gradient-hero-teacher);color:var(--color-hero-copy-strong);box-shadow:var(--shadow-2xl);justify-content:space-between;align-items:flex-end;gap:18px;padding:28px;display:flex;position:relative;overflow:hidden}.tp-dashboard-hero:after{content:"";border-radius:var(--radius-pill);background:radial-gradient(circle, var(--color-surface-alpha-22) 0%, var(--color-surface-alpha-0) 72%);pointer-events:none;width:240px;height:240px;position:absolute;inset:auto -70px -110px auto}.tp-dashboard-hero-copy{z-index:1;max-width:650px;position:relative}.tp-dashboard-hero-copy h2{letter-spacing:var(--letter-spacing-tight);margin:14px 0 10px;font-size:clamp(1.9rem,3vw,2.7rem);line-height:1.03}.tp-dashboard-hero-copy p{color:var(--color-hero-copy);margin:0;line-height:1.6}.tp-dashboard-hero-actions{z-index:1;flex-wrap:wrap;gap:10px;display:flex;position:relative}.tp-hero-btn{border:1px solid var(--color-surface-alpha-24);background:var(--color-overlay-soft);color:var(--color-hero-copy-strong);font-weight:var(--font-weight-bold);cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:14px;padding:12px 18px;transition:transform .18s,background-color .18s}.tp-hero-btn:hover{background:var(--color-overlay-soft-hover);transform:translateY(-1px)}.tp-hero-btn-primary{background:linear-gradient(135deg, var(--color-surface), var(--color-cyan-soft));color:var(--color-text);border-color:var(--color-surface-alpha-68)}.tp-stat-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;display:grid}.tp-stat-card{background:var(--gradient-stat-surface);border:1px solid var(--color-border-accent);border-radius:var(--radius-panel);box-shadow:var(--shadow-sm);padding:22px}.tp-stat-card-success{border-color:var(--color-success-border);background:linear-gradient(180deg, var(--color-success-soft), var(--color-surface))}.tp-stat-card-warm{border-color:var(--color-warning-border-soft);background:var(--gradient-warning-surface)}.tp-stat-card-alert{border-color:var(--color-danger-border);background:var(--gradient-danger-surface)}.tp-stat-label{font-size:.78rem;font-weight:var(--font-weight-extrabold);letter-spacing:var(--letter-spacing-wide);text-transform:uppercase;color:var(--color-text-muted);display:block}.tp-stat-value{color:var(--color-text);letter-spacing:-.05em;margin-top:12px;font-size:clamp(2rem,4vw,2.5rem);line-height:1;display:block}.tp-stat-meta{color:var(--color-text-muted);margin-top:10px;line-height:1.5;display:block}.tp-panel-card{background:var(--gradient-primary-soft-alt);border-radius:var(--radius-2xl);border:1px solid var(--color-border-accent);box-shadow:var(--shadow-sm);padding:22px}.tp-panel-head{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:18px;display:flex}.tp-panel-head h3{color:var(--color-text);letter-spacing:-.03em;margin:10px 0 0;font-size:1.28rem}.tp-dashboard-search{border:1px solid var(--color-border-strong);background:var(--color-surface);width:100%;max-width:240px;box-shadow:var(--shadow-inset-xs);border-radius:14px;outline:none;padding:12px 14px}.tp-class-card-dashboard{border-radius:var(--radius-card);box-shadow:var(--shadow-sm);margin-bottom:12px}.tp-class-subtitle-dashboard{flex-wrap:wrap;gap:8px 12px;margin-top:10px;display:flex}.tp-class-subtitle-dashboard span{border-radius:var(--radius-pill);background:var(--color-surface-alt);border:1px solid var(--color-border);color:var(--color-text-subtle);font-size:.78rem;font-weight:var(--font-weight-bold);align-items:center;padding:5px 10px;display:inline-flex}.tp-alert-item{text-align:left;cursor:pointer;width:100%;margin-bottom:0;transition:transform .18s,box-shadow .18s}.tp-alert-item:hover{box-shadow:var(--shadow-warm-hover);transform:translateY(-1px)}.tp-alert-item strong{line-height:1.45;display:block}.tp-alert-item small{color:var(--color-text-muted);margin-top:6px;display:block}.tp-mobile-top,.tp-mobile-bottom-nav{display:none}@media (width<=992px){.tp-dashboard-grid{grid-template-columns:1fr}}@media (width<=768px){.tp-layout{flex-direction:column!important;padding-bottom:80px!important;display:block!important}.tp-sidebar{width:0!important;display:none!important}.tp-main{width:100%!important;margin-left:0!important;padding:15px!important;display:block!important}.tp-mobile-top{background-color:var(--color-sidebar);color:var(--color-surface);z-index:1000;justify-content:space-between;align-items:center;padding:15px 20px;position:sticky;top:0;display:flex!important}.btn-logout-mobile{background:var(--gradient-danger);color:var(--color-surface);border:1px solid var(--color-danger);font-weight:var(--font-weight-bold);box-shadow:var(--shadow-danger);border-radius:10px;padding:8px 12px}.tp-mobile-bottom-nav{border-top:1px solid var(--color-border);box-shadow:var(--shadow-bottomnav);background-color:var(--color-surface)!important;z-index:2000!important;width:100%!important;padding:10px 0!important;display:flex!important;position:fixed!important;bottom:0!important;left:0!important}.tp-mob-btn{color:var(--color-text-faint);font-size:.75rem;font-weight:var(--font-weight-bold);background:0 0;border:1px solid #0000;border-radius:14px;outline:none;flex-direction:column;flex:1;align-items:center;gap:3px;padding:8px 6px;transition:background-color .18s,color .18s,border-color .18s;display:flex}.tp-mob-btn.active{background:var(--color-primary-soft);border-color:var(--color-primary-border);color:var(--color-primary-accent)!important}.tp-class-card-header{gap:15px;flex-direction:column!important;align-items:flex-start!important}.tp-card-actions{gap:10px;width:100%!important;display:flex!important}.tp-card-actions button{flex:1!important}.tp-dashboard-hero{align-items:flex-start;padding:22px}.tp-panel-head{flex-direction:column}.tp-dashboard-search{max-width:none}}.sp-layout{background-color:var(--color-surface-soft);min-height:100vh;font-family:var(--font-family-ui);display:flex}.sp-sidebar{background-color:var(--color-sidebar);width:240px;color:var(--color-surface);flex-direction:column;flex-shrink:0;height:100vh;display:flex;position:sticky;top:0}.sp-logo{font-size:1.4rem;font-weight:var(--font-weight-black);color:var(--color-primary-accent);border-bottom:1px solid var(--color-sidebar-strong);text-align:center;padding:25px 20px}.sp-nav{flex-direction:column;flex:1;gap:4px;padding:15px 0;display:flex}.sp-nav-btn{color:var(--color-text-faint);text-align:left;cursor:pointer;box-shadow:none;font-size:.95rem;font-weight:var(--font-weight-bold);background:0 0;border:1px solid #0000;border-left-width:4px;border-radius:14px 0 0 14px;outline:none;align-items:center;gap:10px;padding:13px 20px;transition:transform .18s,background-color .18s,color .18s,box-shadow .18s,border-color .18s;display:flex}.sp-nav-btn:hover{color:var(--color-surface);background:var(--gradient-sidebar-hover);border-color:var(--color-primary-alpha-14);box-shadow:inset 0 0 0 1px var(--color-primary-alpha-08);transform:translate(2px)}.sp-nav-btn.active{color:var(--color-sidebar-text);background:var(--gradient-sidebar-active);border-left-color:var(--color-primary-accent);border-color:var(--color-primary-alpha-18);box-shadow:var(--shadow-nav-active)}.sp-main{box-sizing:border-box;flex:1;height:100vh;padding:30px;overflow-y:auto}.sp-mobile-top,.sp-mobile-bottom-nav{display:none}.fade-in{animation:.3s fadeIn}.sp-dashboard-shell{flex-direction:column;gap:22px;display:flex}.sp-dashboard-kicker{border-radius:var(--radius-pill);background:var(--color-surface-alpha-14);color:inherit;font-size:.72rem;font-weight:var(--font-weight-extrabold);letter-spacing:var(--letter-spacing-wide);text-transform:uppercase;align-items:center;padding:6px 12px;display:inline-flex}.sp-dashboard-kicker-light{background:var(--color-border-accent);color:var(--color-primary-ink)}.sp-dashboard-hero{border-radius:var(--radius-hero);background:var(--gradient-hero-student);color:var(--color-primary-soft);box-shadow:var(--shadow-2xl);justify-content:space-between;align-items:flex-end;gap:18px;padding:28px;display:flex}.sp-dashboard-hero-copy{max-width:620px}.sp-dashboard-hero-copy h2{letter-spacing:var(--letter-spacing-tight);margin:14px 0 10px;font-size:clamp(1.9rem,3vw,2.7rem);line-height:1.04}.sp-dashboard-hero-copy p{color:var(--color-hero-copy);margin:0;line-height:1.6}.sp-dashboard-hero-badge{border-radius:var(--radius-xl);background:var(--color-overlay-soft-strong);border:1px solid var(--color-surface-alpha-18);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);flex-direction:column;gap:8px;min-width:220px;padding:18px;display:flex}.sp-dashboard-hero-badge strong{letter-spacing:var(--letter-spacing-tight);font-size:2rem;line-height:1}.sp-dashboard-hero-badge small{color:var(--color-hero-copy-soft)}.sp-stat-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;display:grid}.sp-stat-card{background:var(--gradient-stat-surface);border-radius:var(--radius-card);border:1px solid var(--color-border);box-shadow:var(--shadow-sm);padding:20px}.sp-stat-card-success{background:linear-gradient(180deg, var(--color-success-soft), var(--color-surface));border-color:var(--color-success-border-strong)}.sp-stat-card-warm{background:linear-gradient(180deg, var(--color-warning-soft), var(--color-surface));border-color:var(--color-warning-border-strong)}.sp-stat-card-alert{background:linear-gradient(180deg, var(--color-danger-soft-light), var(--color-surface));border-color:var(--color-danger-border)}.sp-feature-card{background:var(--gradient-feature-surface);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:22px}@media (width<=768px){.sp-layout{background-color:var(--color-surface-soft);flex-direction:column}.sp-sidebar{display:none}.sp-main{height:auto;padding:15px 15px 90px;overflow-y:visible}.sp-dashboard-hero{flex-direction:column;align-items:flex-start;padding:22px}.sp-dashboard-hero-badge{width:100%;min-width:0}.sp-mobile-top{background-color:var(--color-sidebar);color:var(--color-surface);z-index:100;box-shadow:var(--shadow-topbar);justify-content:space-between;align-items:center;padding:15px 20px;display:flex;position:sticky;top:0}.sp-mobile-bottom-nav{background:var(--color-surface);box-shadow:var(--shadow-bottomnav);z-index:100;padding:8px 5px;padding-bottom:calc(8px + env(safe-area-inset-bottom));justify-content:space-around;display:flex;position:fixed;bottom:0;left:0;right:0}.sp-mob-btn{color:var(--color-text-muted);cursor:pointer;font-size:.7rem;font-weight:var(--font-weight-bold);background:0 0;border:1px solid #0000;border-radius:14px;outline:none;flex-direction:column;flex:1;align-items:center;gap:3px;padding:8px 6px;transition:background-color .18s,color .18s,border-color .18s;display:flex}.sp-mob-btn.active{color:var(--color-primary);background:var(--color-primary-soft);border-color:var(--color-primary-border)}}