body.light-mode{--color-white: #ffffff;--color-gray-50: #f9fafb;--color-gray-100: #f3f4f6;--color-gray-200: #e5e7eb;--color-gray-300: #d1d5db;--color-gray-500: #6b7280;--color-gray-700: #374151;--color-gray-900: #111827;--color-primary: #818cf8;--color-primary-dark: #6366f1;--color-primary-light: #e0e7ff;--color-secondary: #06b6d4;--color-secondary-dark: #0891b4;--color-accent: #f97316;--color-success: #10b981;--color-error: #ef4444}body.light-mode .header{background:#fff;border-bottom-color:#e5e7eb}body.light-mode .header__logo{color:#111827}body.light-mode .header__menu-btn span{background:#374151}body.light-mode .nav__link:hover,body.light-mode .nav__link:focus{background:#f3f4f6;color:var(--color-primary)}body.light-mode .hero{background:linear-gradient(135deg,#6366f1eb,#06b6d4e0,#6366f1d1)}body.light-mode .hero__badge{background:#ffffff40;border-color:#fff6}body.light-mode .hero__title{color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.2)}body.light-mode .hero__subtitle{color:#fffffff2}body.light-mode .btn--primary{background:var(--color-primary);color:#fff}body.light-mode .btn--primary:hover{background:var(--color-primary-dark);box-shadow:var(--shadow-lg),0 0 0 4px #e0e7ff80}body.light-mode .btn--secondary{background:#fff;color:#374151;border-color:#e5e7eb}body.light-mode .btn--secondary:hover{border-color:var(--color-primary);color:var(--color-primary)}body.light-mode .btn--tertiary{background:#ffffff1a;color:#fff;border-color:#ffffff4d}body.light-mode .btn--tertiary:hover{background:#ffffff26;box-shadow:var(--shadow-md)}body.light-mode .section{background:#fff}body.light-mode .section--alt{background:#f9fafb}body.light-mode .section__title{color:#111827}body.light-mode .section__description{color:#6b7280}body.light-mode .card{background:#fff;border-color:#e5e7eb}body.light-mode .card:hover{border-color:var(--color-primary-light);box-shadow:0 10px 15px #6366f126}body.light-mode .card__title{color:#111827}body.light-mode .card__text{color:#6b7280}body.light-mode .card__link{color:var(--color-primary)}body.light-mode .card__link:hover{color:var(--color-primary-dark)}body.light-mode .card--featured{box-shadow:inset 0 0 0 2px var(--color-accent),0 4px 6px #00000012}body.light-mode .card--dnb-blanc{background:linear-gradient(135deg,#fff 85%,#fef3e2);box-shadow:inset 0 0 0 2px var(--color-accent),0 4px 6px #00000012}body.light-mode .card--dnb-blanc:hover{border-color:#f97316;box-shadow:inset 0 0 0 2px #f97316,0 10px 15px #0000001a}body.light-mode .tool-card{background:#fff;border-color:#e5e7eb}body.light-mode .tool-card:hover{border-color:var(--color-primary);box-shadow:0 10px 15px #6366f11a}body.light-mode .tool-card__name{color:#111827}body.light-mode .tool-card__tag{background:#f3f4f6;color:#6b7280}body.light-mode .revision-card{color:#fff}body.light-mode .revision-card:hover{transform:translateY(-4px) scale(1.02);box-shadow:0 20px 25px #6366f140}body.light-mode .revision-card--flashcards{background:linear-gradient(135deg,#818cf8,#a5b4fc)}body.light-mode .revision-card--fiches{background:linear-gradient(135deg,#06b6d4,#22d3ee)}body.light-mode .revision-card--quiz{background:linear-gradient(135deg,#f97316,#fb923c)}body.light-mode .revision-card__title{color:#fff}body.light-mode .revision-card__text{color:#ffffffe6}body.light-mode .correction-card{color:#fff}body.light-mode .correction-card--fiches{background:linear-gradient(135deg,#9333ea,#a855f7)}body.light-mode .correction-card--quiz{background:linear-gradient(135deg,#ec4899,#f472b6)}body.light-mode .correction-card--eval{background:linear-gradient(135deg,#14b8a6,#5eead4)}body.light-mode .correction-card:hover{box-shadow:0 20px 25px #00000026}body.light-mode .correction-card__title{color:#fff}body.light-mode .correction-card__text{color:#fffffff2}body.light-mode .correction-card__link{background:#ffffff1f;color:#fff}body.light-mode .correction-card__link:hover{background:#fff3}body.light-mode .resource-item{background:#fff;border-color:#e5e7eb}body.light-mode .resource-item:hover{border-color:var(--color-primary-light);box-shadow:0 4px 6px #6366f11a}body.light-mode .resource-item__content h4{color:#111827}body.light-mode .resource-item__content p{color:#6b7280}body.light-mode .resource-item__link{background:#f3f4f6;color:#374151}body.light-mode .resource-item__link:hover{background:var(--color-primary);color:#fff}body.light-mode .footer{background:#f9fafb;color:#6b7280;border-top:1px solid #e5e7eb}body.light-mode .footer__brand{color:#374151}body.light-mode .footer__text,body.light-mode .footer__links a{color:#6b7280}body.light-mode .footer__links a:hover{color:var(--color-primary)}.mode-toggle{position:fixed;top:calc((var(--header-height, 70px) - 48px) / 2);right:var(--space-4);z-index:1001;background:#fff;border:2px solid #e5e7eb;border-radius:50%;width:48px;height:48px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.5rem;transition:all .3s ease;box-shadow:0 4px 6px #0000001a}.mode-toggle:hover{transform:scale(1.1);box-shadow:0 10px 15px #00000026}body.light-mode .mode-toggle{background:#f9fafb;border-color:#d1d5db;color:var(--color-primary)}body.light-mode .mode-toggle:hover{box-shadow:0 10px 15px #6366f133}body.light-mode :focus-visible{outline-color:var(--color-primary)}