*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--color-bg:#09090f;--color-surface:#12121c;--color-surface-2:#1a1a28;--color-border:hsla(0,0%,100%,.08);--color-border-hover:hsla(0,0%,100%,.18);--color-primary:#7c3aed;--color-primary-light:#9d5df5;--color-primary-dark:#5b21b6;--color-accent:#06d6a0;--color-accent-warm:#f59e0b;--color-text:#f8f8ff;--color-text-muted:rgba(248,248,255,.55);--color-text-faint:rgba(248,248,255,.3);--color-success:#10b981;--color-error:#ef4444;--color-warning:#f59e0b;--gradient-brand:linear-gradient(135deg,#7c3aed,#06d6a0);--gradient-surface:linear-gradient(180deg,#1a1a28,#12121c);--gradient-glow:radial-gradient(ellipse 60% 40% at 50% -20%,rgba(124,58,237,.35) 0%,transparent 70%);--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:40px;--space-2xl:64px;--font-sans:"Inter",system-ui,-apple-system,sans-serif;--font-mono:"JetBrains Mono","Fira Code",monospace;--radius-sm:6px;--radius-md:12px;--radius-lg:20px;--radius-xl:32px;--radius-full:9999px;--shadow-glow-primary:0 0 40px rgba(124,58,237,.4);--shadow-card:0 4px 32px rgba(0,0,0,.4);--shadow-input-focus:0 0 0 3px rgba(124,58,237,.35);--ease-out:cubic-bezier(.22,1,.36,1);--duration:.22s}html{font-family:var(--font-sans);font-size:16px;color:var(--color-text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth}body,html{background:var(--color-bg)}body{min-height:100vh}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;letter-spacing:-.02em}h1{font-size:clamp(2rem,5vw,3.5rem)}h2{font-size:clamp(1.5rem,3vw,2.25rem)}h3{font-size:1.5rem}h4{font-size:1.25rem}p{line-height:1.7;color:var(--color-text-muted)}a{color:var(--color-primary-light);text-decoration:none;transition:color var(--duration) var(--ease-out)}a:hover{color:var(--color-accent)}.page-center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--space-lg);position:relative;overflow:hidden}.page-center:before{content:"";position:fixed;inset:0;background:var(--gradient-glow);pointer-events:none;z-index:0}.container{max-width:1200px;margin:0 auto;padding:0 var(--space-lg)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:var(--space-xl);position:relative;z-index:1;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:border-color var(--duration) var(--ease-out),box-shadow var(--duration) var(--ease-out)}.card:hover{border-color:var(--color-border-hover)}.card--glass{background:#12121c99;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:12px 24px;border:none;border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.9375rem;font-weight:600;cursor:pointer;transition:all var(--duration) var(--ease-out);text-decoration:none;white-space:nowrap;position:relative;overflow:hidden}.btn:after{content:"";position:absolute;inset:0;background:#fff0;transition:background var(--duration) var(--ease-out);border-radius:inherit}.btn:hover:after{background:#ffffff12}.btn:active{transform:scale(.97)}.btn-primary{background:var(--gradient-brand);color:#fff;box-shadow:0 4px 20px #7c3aed80}.btn-primary:hover{box-shadow:0 6px 30px #7c3aedb3;transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--color-text-muted);border:1px solid var(--color-border)}.btn-ghost:hover{color:var(--color-text);border-color:var(--color-border-hover)}.btn-danger{background:#ef444426;color:#ef4444;border:1px solid rgba(239,68,68,.3)}.btn-danger:hover{background:#ef444440}.btn-full{width:100%}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.form-group{display:flex;flex-direction:column;gap:var(--space-xs);margin-bottom:var(--space-md)}.form-label{font-size:.875rem;font-weight:500;color:var(--color-text-muted);letter-spacing:.02em}.form-input{padding:12px 16px;background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);font-family:var(--font-sans);font-size:.9375rem;outline:none;transition:border-color var(--duration) var(--ease-out),box-shadow var(--duration) var(--ease-out)}.form-input::-moz-placeholder{color:var(--color-text-faint)}.form-input::placeholder{color:var(--color-text-faint)}.form-input:focus{border-color:var(--color-primary);box-shadow:var(--shadow-input-focus)}.form-input.error{border-color:var(--color-error)}.form-error{font-size:.8125rem;color:var(--color-error);margin-top:2px}.form-select{padding:12px 16px;background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);font-family:var(--font-sans);font-size:.9375rem;outline:none;cursor:pointer;transition:border-color var(--duration) var(--ease-out);-webkit-appearance:none;-moz-appearance:none;appearance:none}.form-select:focus{border-color:var(--color-primary);box-shadow:var(--shadow-input-focus)}.alert{padding:12px 16px;border-radius:var(--radius-md);font-size:.875rem;display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-md)}.alert-error{background:#ef44441a;border:1px solid rgba(239,68,68,.3);color:#fca5a5}.alert-success{background:#10b9811a;border:1px solid rgba(16,185,129,.3);color:#6ee7b7}.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase}.badge-admin{background:#7c3aed33;color:#c4b5fd;border:1px solid rgba(124,58,237,.4)}.badge-formateur{background:#06d6a026;color:#6ee7b7;border:1px solid rgba(6,214,160,.3)}.badge-apprenant{background:#f59e0b26;color:#fcd34d;border:1px solid rgba(245,158,11,.3)}.dashboard{min-height:100vh;display:grid;grid-template-columns:260px 1fr;grid-template-rows:auto 1fr}.dashboard-sidebar{grid-row:1/-1;border-right:1px solid var(--color-border);padding:var(--space-xl) var(--space-md);flex-direction:column;gap:var(--space-lg)}.dashboard-header,.dashboard-sidebar{background:var(--color-surface);display:flex}.dashboard-header{grid-column:2;border-bottom:1px solid var(--color-border);padding:var(--space-md) var(--space-xl);align-items:center;justify-content:space-between}.dashboard-main{grid-column:2;padding:var(--space-xl);overflow-y:auto}.stat-card{background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-lg);display:flex;flex-direction:column;gap:var(--space-sm);transition:border-color var(--duration) var(--ease-out),transform var(--duration) var(--ease-out)}.stat-card:hover{border-color:var(--color-border-hover);transform:translateY(-2px)}.stat-card__label{font-size:.8125rem;font-weight:500;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.06em}.stat-card__value{font-size:2rem;font-weight:800;background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-card__icon{font-size:1.5rem;margin-bottom:var(--space-xs)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-md);margin-bottom:var(--space-xl)}.nav-logo{gap:var(--space-sm);padding:var(--space-sm) var(--space-sm);margin-bottom:var(--space-md)}.nav-logo,.nav-logo-mark{display:flex;align-items:center}.nav-logo-mark{width:36px;height:36px;background:var(--gradient-brand);border-radius:var(--radius-sm);justify-content:center;font-weight:800;font-size:1rem;color:#fff;flex-shrink:0}.nav-logo-name{font-size:1rem;font-weight:700;color:var(--color-text)}.nav-logo-name span{background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav-section-title{font-size:.6875rem;font-weight:600;color:var(--color-text-faint);text-transform:uppercase;letter-spacing:.1em;padding:0 var(--space-sm);margin-bottom:var(--space-xs)}.nav-link{display:flex;align-items:center;gap:var(--space-sm);padding:10px var(--space-sm);border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;color:var(--color-text-muted);cursor:pointer;border:none;background:transparent;width:100%;text-align:left;transition:all var(--duration) var(--ease-out);text-decoration:none}.nav-link:hover{background:var(--color-surface-2);color:var(--color-text)}.nav-link.active{background:#7c3aed26;color:var(--color-primary-light);border-left:2px solid var(--color-primary)}.nav-link-icon{font-size:1.1rem;width:20px;text-align:center}.user-block{gap:var(--space-sm);margin-top:auto;padding:var(--space-md) var(--space-sm);border-top:1px solid var(--color-border)}.user-avatar,.user-block{display:flex;align-items:center}.user-avatar{width:40px;height:40px;border-radius:var(--radius-full);background:var(--gradient-brand);justify-content:center;font-weight:700;font-size:1rem;color:#fff;flex-shrink:0}.user-name{font-size:.875rem;font-weight:600;color:var(--color-text)}.user-email,.user-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-email{font-size:.75rem;color:var(--color-text-faint)}.spinner{width:20px;height:20px;border:2px solid hsla(0,0%,100%,.2);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.divider{display:flex;align-items:center;gap:var(--space-md);margin:var(--space-lg) 0;color:var(--color-text-faint);font-size:.8125rem}.divider:after,.divider:before{content:"";flex:1;height:1px;background:var(--color-border)}.text-gradient{background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeInUp .4s var(--ease-out) forwards}@media(max-width:768px){.dashboard{grid-template-columns:1fr}.dashboard-header,.dashboard-main{grid-column:1}.dashboard-header{padding:var(--space-sm) var(--space-md);flex-wrap:wrap;gap:var(--space-sm)}.header-sub{display:none}.dashboard-main{padding:var(--space-md)}}