:root {
    --color-primary: #1a365d;
    --color-primary-dark: #0f2440;
    --color-primary-light: #2c5282;
    --color-accent: #c53030;
    --color-accent-dark: #9b2c2c;
    --color-accent-light: #fc8181;
    --color-white: #ffffff;
    --color-off-white: #f7f9fc;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;
    --color-success: #059669;
    --color-error: #dc2626;
    --font-display: 'Bebas Neue', sans-serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    --text-7xl: 4.5rem;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --max-width: 1200px;
    --max-width-narrow: 800px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--color-white);
}

body.modal-open {
    overflow: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.1;
    color: var(--color-gray-900);
    letter-spacing: 0.02em;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.required {
    color: var(--color-accent);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn__icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.btn__icon--right {
    margin-left: var(--space-1);
}

.btn--primary {
    background-color: var(--color-accent);
    color: var(--color-white);
    border: 2px solid var(--color-accent);
}

.btn--primary:hover {
    background-color: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn--primary:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(197, 48, 48, 0.3);
}

.btn--primary:active {
    transform: translateY(0);
}

.btn--outline {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.btn--outline:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
}

.btn--large {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
}

.btn--full {
    width: 100%;
}

.btn__loader {
    display: inline-flex;
}

.spinner {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

.spinner circle {
    stroke-dasharray: 60;
    stroke-dashoffset: 45;
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: transparent;
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.header.scrolled {
    background-color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav__logo {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.nav__logo-text {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    color: var(--color-white);
    transition: color var(--transition-base);
}

.nav__logo-sub {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-base);
}

.header.scrolled .nav__logo-text {
    color: var(--color-primary);
}

.header.scrolled .nav__logo-sub {
    color: var(--color-gray-500);
}

.nav__menu {
    display: none;
    align-items: center;
    gap: var(--space-8);
}

.nav__link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color var(--transition-fast);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

.nav__link:hover::after {
    width: 100%;
}

.header.scrolled .nav__link {
    color: var(--color-gray-700);
}

.header.scrolled .nav__link:hover {
    color: var(--color-primary);
}

.nav__cta {
    display: none;
}

.header.scrolled .btn--primary {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
}

.nav__mobile-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
}

.nav__mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    transition: background-color var(--transition-base);
}

.header.scrolled .nav__mobile-toggle span {
    background-color: var(--color-gray-700);
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, #0a1628 100%);
    z-index: -1;
}

.hero__bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(ellipse at 20% 80%, rgba(197, 48, 48, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(44, 82, 130, 0.2) 0%, transparent 50%);
}

.hero__bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
}

.hero__content {
    text-align: center;
    padding: var(--space-20) 0;
}

.hero__badge {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-6);
    animation: fadeInDown 0.6s ease-out;
}

.hero__title {
    font-size: clamp(var(--text-5xl), 12vw, 8rem);
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
    animation: fadeInUp 0.8s ease-out;
}

.hero__subtitle {
    font-size: clamp(var(--text-lg), 3vw, var(--text-xl));
    color: rgba(255, 255, 255, 0.8);
    font-weight: 300;
    max-width: 600px;
    margin: 0 auto var(--space-10);
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero__actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    justify-content: center;
    margin-bottom: var(--space-16);
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.hero__stats {
    display: flex;
    justify-content: center;
    gap: var(--space-10);
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    animation: fadeIn 1s ease-out 0.6s backwards;
}

.hero__stat {
    text-align: center;
}

.hero__stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    color: var(--color-white);
    letter-spacing: 0.02em;
}

.hero__stat-label {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero__scroll {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    animation: bounce 2s infinite;
}

.hero__scroll svg {
    width: 20px;
    height: 20px;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

.section {
    padding: var(--space-20) 0;
}

.section__header {
    margin-bottom: var(--space-12);
}

.section__header--center {
    text-align: center;
}

.section__label {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--space-3);
}

.section__title {
    font-size: clamp(var(--text-4xl), 6vw, var(--text-6xl));
    text-transform: uppercase;
    margin-bottom: var(--space-4);
}

.section__description {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto;
}

.mission {
    background-color: var(--color-off-white);
}

.mission__content {
    display: grid;
    gap: var(--space-12);
}

.mission__text {
    max-width: 600px;
}

.mission__lead {
    font-size: var(--text-xl);
    font-weight: 500;
    color: var(--color-gray-800);
    margin-bottom: var(--space-6);
    line-height: 1.7;
}

.mission__text p {
    margin-bottom: var(--space-4);
    color: var(--color-gray-600);
}

.mission__visual {
    display: grid;
    gap: var(--space-6);
}

.mission__card {
    background-color: var(--color-white);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.mission__card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.mission__card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
}

.mission__card-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-white);
}

.mission__card h3 {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.mission__card p {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.defis {
    background-color: var(--color-white);
}

.defis__grid {
    display: grid;
    gap: var(--space-8);
    margin-bottom: var(--space-12);
}

.defi-card {
    background-color: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-base);
}

.defi-card:hover {
    border-color: var(--color-gray-300);
    box-shadow: var(--shadow-lg);
}

.defi-card--featured {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border: none;
    color: var(--color-white);
}

.defi-card__badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background-color: var(--color-accent);
    color: var(--color-white);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.defi-card--featured .defi-card__badge {
    background-color: rgba(255, 255, 255, 0.2);
}

.defi-card__title {
    font-size: var(--text-3xl);
    text-transform: uppercase;
    margin-bottom: var(--space-6);
}

.defi-card--featured .defi-card__title {
    color: var(--color-white);
}

.defi-card__distances {
    display: flex;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-gray-200);
}

.defi-card--featured .defi-card__distances {
    border-color: rgba(255, 255, 255, 0.2);
}

.defi-card__distance {
    text-align: center;
}

.defi-card__distance-value {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    color: var(--color-accent);
    line-height: 1;
}

.defi-card--featured .defi-card__distance-value {
    color: var(--color-accent-light);
}

.defi-card__distance-unit {
    font-size: var(--text-xs);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.defi-card--featured .defi-card__distance-unit {
    color: rgba(255, 255, 255, 0.7);
}

.defi-card__description {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    line-height: 1.7;
}

.defi-card--featured .defi-card__description {
    color: rgba(255, 255, 255, 0.8);
}

.defis__cta {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-gray-200);
}

.defis__cta p {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    margin-bottom: var(--space-6);
}

.cause {
    background-color: var(--color-off-white);
}

.cause__layout {
    display: grid;
    gap: var(--space-12);
}

.cause__content {
    max-width: 600px;
}

.cause__org {
    margin-bottom: var(--space-8);
}

.cause__org h3 {
    font-family: var(--font-body);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-4);
}

.cause__org p {
    color: var(--color-gray-600);
    margin-bottom: var(--space-4);
}

.cause__impact h4 {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.cause__list {
    margin-bottom: var(--space-8);
}

.cause__list li {
    position: relative;
    padding-left: var(--space-6);
    margin-bottom: var(--space-3);
    color: var(--color-gray-600);
}

.cause__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 50%;
}

.cause__visual {
    display: flex;
    align-items: center;
}

.cause__quote {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--space-10);
    border-radius: var(--radius-xl);
    position: relative;
}

.cause__quote::before {
    content: '"';
    position: absolute;
    top: var(--space-4);
    left: var(--space-6);
    font-family: var(--font-display);
    font-size: 6rem;
    color: rgba(255, 255, 255, 0.1);
    line-height: 1;
}

.cause__quote blockquote {
    font-size: var(--text-xl);
    font-weight: 300;
    font-style: italic;
    color: var(--color-white);
    line-height: 1.8;
    margin-bottom: var(--space-6);
    position: relative;
    z-index: 1;
}

.cause__quote cite {
    font-style: normal;
    font-size: var(--text-sm);
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.fonctionnement {
    background-color: var(--color-white);
}

.fonctionnement__steps {
    max-width: 700px;
    margin: 0 auto var(--space-12);
}

.step {
    display: flex;
    gap: var(--space-6);
    padding: var(--space-6) 0;
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 24px;
    top: 70px;
    width: 2px;
    height: calc(100% - 40px);
    background-color: var(--color-gray-200);
}

.step__number {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    border-radius: 50%;
    position: relative;
    z-index: 1;
}

.step__content h3 {
    font-family: var(--font-body);
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.step__content p {
    color: var(--color-gray-600);
}

.fonctionnement__note {
    display: flex;
    gap: var(--space-4);
    max-width: 700px;
    margin: 0 auto var(--space-10);
    padding: var(--space-6);
    background-color: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
}

.fonctionnement__note svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--color-primary);
}

.fonctionnement__note p {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.fonctionnement__note strong {
    color: var(--color-gray-800);
}

.fonctionnement__cta {
    text-align: center;
}

.footer {
    background-color: var(--color-gray-900);
    color: var(--color-white);
    padding: var(--space-16) 0 var(--space-8);
}

.footer__content {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--space-8);
}

.footer__logo {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    letter-spacing: 0.02em;
}

.footer__tagline {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    margin-top: var(--space-2);
}

.footer__cause p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-1);
}

.footer__cause-name {
    font-weight: 600;
    color: var(--color-accent-light);
}

.footer__bottom {
    text-align: center;
}

.footer__bottom p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.5);
}
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal.is-open {
    opacity: 1;
    visibility: visible;
}

.modal__overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal__container {
    position: relative;
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    transform: translateY(20px);
    transition: transform var(--transition-base);
}

.modal.is-open .modal__container {
    transform: translateY(0);
}

.modal__close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-gray-100);
    border-radius: 50%;
    transition: background-color var(--transition-fast);
    z-index: 10;
}

.modal__close:hover {
    background-color: var(--color-gray-200);
}

.modal__close svg {
    width: 20px;
    height: 20px;
    color: var(--color-gray-600);
}

.modal__content {
    padding: var(--space-8);
}

.modal__header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.modal__title {
    font-size: var(--text-3xl);
    text-transform: uppercase;
    margin-bottom: var(--space-2);
}

.modal__subtitle {
    color: var(--color-gray-600);
}

.donation-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.form__row {
    display: grid;
    gap: var(--space-5);
}

.form__group {
    display: flex;
    flex-direction: column;
}

.form__label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.form__input,
.form__select {
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--color-gray-800);
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    line-height: 1.2;
}

.form__input:focus,
.form__select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

.form__input.error,
.form__select.error {
    border-color: var(--color-error);
}

.form__input::placeholder {
    color: var(--color-gray-400);
}

.form__input-wrapper {
    position: relative;
}

.form__input-prefix {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-500);
    font-weight: 500;
}

.form__input--with-prefix {
    padding-left: var(--space-8);
}

.form__error {
    font-size: var(--text-xs);
    color: var(--color-error);
    margin-top: var(--space-1);
    min-height: 1.2em;
}

/* Checkbox */
.form__group--checkbox {
    margin-top: var(--space-2);
}

.form__checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    cursor: pointer;
    font-size: var(--text-sm);
    color: var(--color-gray-700);
}

.form__checkbox {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.form__checkbox-custom {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
    margin-top: 2px;
}

.form__checkbox:checked + .form__checkbox-custom {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.form__checkbox:checked + .form__checkbox-custom::after {
    content: '';
    position: absolute;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid var(--color-white);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.form__checkbox:focus + .form__checkbox-custom {
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.2);
}

/* Champs fiscaux */
.form__tax-fields {
    background-color: var(--color-gray-50);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    margin-top: var(--space-2);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    animation: slideDown 0.3s ease-out;
}

.form__tax-fields[hidden] {
    display: none;
}

.form__tax-header h4 {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-gray-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form__actions {
    margin-top: var(--space-4);
}

.modal__success {
    text-align: center;
}

.success__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-6);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-success);
    border-radius: 50%;
    animation: scaleIn 0.5s ease-out;
}

.success__icon svg {
    width: 40px;
    height: 40px;
    color: var(--color-white);
}

@keyframes scaleIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.success__title {
    font-size: var(--text-3xl);
    text-transform: uppercase;
    margin-bottom: var(--space-4);
}

.success__message {
    color: var(--color-gray-600);
    margin-bottom: var(--space-6);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.success__details {
    background-color: var(--color-gray-50);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-8);
    text-align: left;
}

.success__details p {
    display: flex;
    justify-content: space-between;
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--color-gray-200);
    font-size: var(--text-sm);
}

.success__details p:last-child {
    border-bottom: none;
}

.success__details strong {
    color: var(--color-gray-800);
}

.success__actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (min-width: 768px) {
    .nav__menu {
        display: flex;
    }
    
    .nav__cta {
        display: inline-flex;
    }
    
    .nav__mobile-toggle {
        display: none;
    }
    
    .hero__actions {
        flex-direction: row;
    }
    
    .mission__content {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
    
    .mission__visual {
        grid-template-columns: 1fr;
    }
    
    .defis__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cause__layout {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
    
    .form__row {
        grid-template-columns: 1fr 1fr;
    }
    
    .success__actions {
        flex-direction: row;
        justify-content: center;
    }
    
    .footer__content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

@media (min-width: 1024px) {
    .section {
        padding: var(--space-24) 0;
    }
    
    .hero__content {
        padding: var(--space-24) 0;
    }
    
    .mission__visual {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .modal__content {
        padding: var(--space-10);
    }
}

@media (min-width: 1280px) {
    .container {
        padding: 0 var(--space-8);
    }
}