/* ===== BASE ===== */
html {
    scroll-behavior: smooth;
}

/* ===== SCROLL REVEAL ANIMATION ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== HEADER NAV ===== */
.nav-link {
    color: #374151;
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
}

.nav-link:hover,
.nav-link.nav-active {
    color: #2563eb;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2563eb;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.nav-active::after {
    width: 100%;
}

/* ===== CAROUSEL ===== */
.carousel-container {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.carousel-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.2s ease-in-out;
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.85) 0%, rgba(30, 64, 175, 0.75) 50%, rgba(29, 78, 216, 0.6) 100%);
}

.carousel-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.dot.active {
    background: #60a5fa;
    border-color: #60a5fa;
    transform: scale(1.2);
}

.dot:hover {
    background: rgba(255, 255, 255, 0.7);
}

/* ===== SERVICE CARDS ===== */
.service-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 30px -12px rgba(0, 0, 0, 0.15), 0 8px 10px -5px rgba(0, 0, 0, 0.05);
}

.service-img {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.service-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.1), transparent);
}

.service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.service-card:hover .service-img img {
    transform: scale(1.1);
}

.service-card .p-6 {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.service-card ul {
    flex: 1;
}

.service-cta {
    width: 100%;
    display: block;
    background: #2563eb;
    color: white;
    text-align: center;
    padding: 12px 0;
    border-radius: 9999px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.service-cta:hover {
    background: #1d4ed8;
    transform: scale(1.02);
}

/* ===== FORM INPUTS ===== */
.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    transition: all 0.2s ease;
    font-size: 1rem;
}

.form-input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* ===== WHATSAPP FLOATING BUTTON ===== */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 50;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #25D366, #128C7E);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    animation: whatsapp-pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.15) rotate(-5deg);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.6);
    color: white;
}

.whatsapp-float svg {
    width: 32px;
    height: 32px;
}

@keyframes whatsapp-pulse {
    0% { box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 28px rgba(37, 211, 102, 0.7); }
    100% { box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4); }
}

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: 96px;
    right: 24px;
    z-index: 50;
    width: 48px;
    height: 48px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
    transition: all 0.3s ease;
}

.back-to-top.visible {
    display: flex;
}

.back-to-top:hover {
    background: #1d4ed8;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.5);
}

/* ===== FORM STATUS ===== */
#form-status.success {
    background-color: #dcfce7;
    color: #166534;
    border: 1px solid #86efac;
}

#form-status.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .whatsapp-float {
        width: 52px;
        height: 52px;
        bottom: 16px;
        right: 16px;
    }
    .whatsapp-float svg {
        width: 28px;
        height: 28px;
    }
    .back-to-top {
        bottom: 80px;
        right: 16px;
        width: 42px;
        height: 42px;
    }
}