/* ===== Preloader Futuriste ===== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
    overflow: hidden;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-content {
    position: relative;
    text-align: center;
    animation: fadeInUp 0.6s ease;
}

/* Logo avec animations modernes */
.preloader-logo {
    width: 150px;
    height: auto;
    position: relative;
    z-index: 2;
    animation: logoFloat 3s ease-in-out infinite;
    filter: drop-shadow(0 10px 30px rgba(22, 163, 74, 0.3));
}

/* Cercles animés autour du logo */
.preloader-content::before,
.preloader-content::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 2px solid rgba(22, 163, 74, 0.2);
    animation: ripple 2s ease-out infinite;
}

.preloader-content::before {
    width: 200px;
    height: 200px;
}

.preloader-content::after {
    width: 260px;
    height: 260px;
    animation-delay: 0.5s;
}

/* Spinner moderne sous le logo */
.preloader-spinner {
    width: 80px;
    height: 80px;
    margin: 2rem auto 1.5rem;
    position: relative;
}

.preloader-spinner::before,
.preloader-spinner::after {
    content: '';
    position: absolute;
    border-radius: 50%;
}

.preloader-spinner::before {
    width: 80px;
    height: 80px;
    border: 3px solid transparent;
    border-top-color: #16a34a;
    border-right-color: #16a34a;
    animation: spinFast 1s linear infinite;
}

.preloader-spinner::after {
    width: 60px;
    height: 60px;
    top: 10px;
    left: 10px;
    border: 3px solid transparent;
    border-bottom-color: #22c55e;
    border-left-color: #22c55e;
    animation: spinSlow 1.5s linear infinite;
}

/* Points de chargement */
.preloader-dots {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1rem;
}

.preloader-dots span {
    width: 8px;
    height: 8px;
    background: #16a34a;
    border-radius: 50%;
    animation: dotPulse 1.4s ease-in-out infinite;
}

.preloader-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.preloader-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

.preloader-text {
    color: #1f2937;
    font-size: 1rem;
    font-weight: 600;
    margin: 1rem 0 0 0;
    letter-spacing: 1px;
    animation: textFade 2s ease-in-out infinite;
}

/* Particules flottantes en arrière-plan */
.preloader::before,
.preloader::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    opacity: 0.05;
}

.preloader::before {
    background: linear-gradient(135deg, #16a34a, #22c55e);
    top: -150px;
    left: -150px;
    animation: float1 8s ease-in-out infinite;
}

.preloader::after {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    bottom: -150px;
    right: -150px;
    animation: float2 8s ease-in-out infinite;
}

/* ===== Welcome Modal (corrigée) ===== */
.welcome-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    overflow-x: hidden;
    overflow-y: auto;
}

.welcome-modal.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.welcome-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: -1;
}

.welcome-modal-content {
    position: relative;
    width: 100%;
    max-width: 600px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 3rem 2.5rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3),
                0 0 0 1px rgba(255, 255, 255, 0.2) inset;
    animation: modalSlideUp 0.5s ease;
    margin: auto;
    z-index: 1;
}

.welcome-modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 2;
}

.welcome-modal-close:hover {
    background: #ef4444;
    color: #ffffff;
    transform: rotate(90deg);
}

.welcome-modal-close i {
    width: 20px;
    height: 20px;
}

/* ===== Welcome Slides ===== */
.welcome-slides {
    position: relative;
    min-height: 420px;
}

.welcome-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transform: translateX(50px);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
}

.welcome-slide.active {
    position: relative;
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.welcome-slide.slide-out-left {
    transform: translateX(-50px);
    opacity: 0;
}

.welcome-slide.slide-in-right {
    animation: slideInRight 0.5s ease;
}

.welcome-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    background: linear-gradient(135deg, #16a34a, #22c55e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    box-shadow: 0 10px 30px rgba(22, 163, 74, 0.3);
    animation: iconBounce 0.6s ease;
}

.welcome-icon i {
    width: 40px;
    height: 40px;
}

.welcome-slide h2 {
    color: #1f2937;
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.welcome-subtitle {
    color: #4b5563;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.welcome-slide p {
    color: #6b7280;
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

/* ===== Progress Dots ===== */
.welcome-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.progress-dot {
    width: 10px;
    height: 10px;
    background: #d1d5db;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.progress-dot.active {
    width: 30px;
    background: linear-gradient(135deg, #16a34a, #22c55e);
    border-radius: 5px;
}

/* ===== Welcome Actions ===== */
.welcome-action {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.welcome-action .btn {
    min-width: 140px;
}

/* ===== Animations Preloader ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes ripple {
    0% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}

@keyframes spinFast {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes spinSlow {
    from {
        transform: rotate(360deg);
    }
    to {
        transform: rotate(0deg);
    }
}

@keyframes dotPulse {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1.2);
        opacity: 1;
    }
}

@keyframes textFade {
    0%, 100% {
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
}

@keyframes float1 {
    0%, 100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(50px, 50px);
    }
}

@keyframes float2 {
    0%, 100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(-50px, -50px);
    }
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes iconBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .welcome-modal {
        padding: 0.5rem;
        align-items: flex-start;
        padding-top: 2rem;
    }

    .welcome-modal-content {
        padding: 2.5rem 1.5rem;
        border-radius: 20px;
        max-width: 100%;
    }

    .welcome-slides {
        min-height: 380px;
    }

    .welcome-slide h2 {
        font-size: 1.5rem;
    }

    .welcome-slide p,
    .welcome-subtitle {
        font-size: 1rem;
    }

    .welcome-icon {
        width: 70px;
        height: 70px;
        margin-bottom: 1.5rem;
    }

    .welcome-icon i {
        width: 35px;
        height: 35px;
    }

    .welcome-action {
        flex-direction: column;
        gap: 0.75rem;
    }

    .welcome-action .btn {
        width: 100%;
    }

    .preloader-logo {
        width: 120px;
    }

    .preloader-content::before {
        width: 160px;
        height: 160px;
    }

    .preloader-content::after {
        width: 200px;
        height: 200px;
    }

    .preloader-spinner {
        width: 60px;
        height: 60px;
    }

    .preloader-spinner::before {
        width: 60px;
        height: 60px;
    }

    .preloader-spinner::after {
        width: 45px;
        height: 45px;
        top: 7.5px;
        left: 7.5px;
    }
}

@media (max-width: 480px) {
    .welcome-modal-content {
        padding: 2rem 1.25rem;
    }

    .welcome-slides {
        min-height: 400px;
    }

    .welcome-slide h2 {
        font-size: 1.25rem;
        margin-bottom: 0.75rem;
    }

    .welcome-slide p,
    .welcome-subtitle {
        font-size: 0.9375rem;
        margin-bottom: 1.5rem;
    }

    .welcome-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 1.25rem;
    }

    .welcome-icon i {
        width: 30px;
        height: 30px;
    }

    .welcome-modal-close {
        width: 36px;
        height: 36px;
        top: 1rem;
        right: 1rem;
    }

    .preloader-logo {
        width: 100px;
    }

    .preloader-text {
        font-size: 0.875rem;
    }
}

/* Masquer les scrollbars mais garder la fonctionnalité */
.welcome-modal::-webkit-scrollbar {
    display: none;
}

.welcome-modal {
    -ms-overflow-style: none;
    scrollbar-width: none;
}