/* ============================================
   CSS Variables - Minimalista
   ============================================ */
:root {
    --primary-color: #1976d2;
    --primary-dark: #1565c0;
    --primary-light: #42a5f5;
    --silver: #9e9e9e;
    --silver-light: #e0e0e0;
    --silver-dark: #616161;
    --dark: #1a1a1a;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

/* ============================================
   Base Styles
   ============================================ */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--dark);
    line-height: 1.7;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

.letter-spacing {
    letter-spacing: 0.1em;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    padding: 1.25rem 0;
    background: var(--white) !important;
    transition: var(--transition);
}

.navbar-brand {
    font-size: 1.1rem;
    letter-spacing: 0.05em;
}

.navbar-nav .nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    color: var(--dark) !important;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

.text-primary {
    color: var(--primary-color) !important;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(25, 118, 210, 0.3);
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    margin-top: 76px;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.03"><circle cx="30" cy="30" r="2"/></g></svg>');
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

.hero-section h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
}

.hero-section .lead {
    font-size: clamp(1rem, 2vw, 1.25rem);
    opacity: 0.95;
}

.btn-light {
    background-color: var(--white);
    border-color: var(--white);
    color: var(--primary-color);
    font-weight: 600;
}

.btn-light:hover {
    background-color: var(--silver-light);
    border-color: var(--silver-light);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* ============================================
   Sections
   ============================================ */
section {
    scroll-margin-top: 76px;
}

.title-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: 2px;
}

.bg-light {
    background-color: #f8f9fa !important;
}

/* ============================================
   Feature Boxes
   ============================================ */
.feature-box {
    transition: var(--transition);
    border-radius: 12px;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    transition: var(--transition);
}

.feature-box:hover .feature-icon {
    transform: scale(1.1);
}

/* ============================================
   Service Cards
   ============================================ */
.service-card {
    transition: var(--transition);
    border-radius: 12px;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1) !important;
}

.service-icon {
    transition: var(--transition);
}

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

.service-card .list-unstyled li {
    font-size: 0.9rem;
    line-height: 1.8;
}

/* ============================================
   Structure Items
   ============================================ */
.structure-item {
    transition: var(--transition);
    border-radius: 12px;
    height: 100%;
}

.structure-item:hover {
    background-color: #f8f9fa;
    transform: translateY(-5px);
}

.structure-item i {
    transition: var(--transition);
}

.structure-item:hover i {
    transform: scale(1.15);
    color: var(--primary-dark) !important;
}

/* ============================================
   Structure Images
   ============================================ */
.structure-image-wrapper {
    aspect-ratio: 4/3;
    cursor: pointer;
    transition: var(--transition);
    height: 100%;
}

.structure-image-wrapper:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15) !important;
}

.structure-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.structure-image-wrapper:hover .structure-image {
    transform: scale(1.1);
}

.structure-image-overlay {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0));
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.structure-image-wrapper:hover .structure-image-overlay {
    opacity: 1;
}

.structure-image-overlay h5 {
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

/* ============================================
   Testimonial Cards
   ============================================ */
.testimonial-card {
    transition: var(--transition);
    border-radius: 12px;
    height: 100%;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1) !important;
}

/* ============================================
   FAQ Accordion
   ============================================ */
.accordion-button {
    background-color: var(--white);
    font-size: 1rem;
    color: var(--dark);
    box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
    background-color: var(--white);
    color: var(--primary-color);
    border-color: transparent;
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.25rem rgba(25, 118, 210, 0.15);
}

.accordion-body {
    color: var(--silver-dark);
    line-height: 1.8;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-item {
    transition: var(--transition);
}

.contact-icon {
    transition: var(--transition);
}

.contact-item:hover .contact-icon {
    transform: scale(1.1);
}

.contact-item a:hover {
    color: var(--primary-color) !important;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(25, 118, 210, 0.15);
}

.map-placeholder {
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

/* ============================================
   Cards
   ============================================ */
.card {
    border-radius: 12px;
    transition: var(--transition);
}

.shadow-sm {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08) !important;
}

/* ============================================
   Footer
   ============================================ */
footer {
    background-color: var(--dark) !important;
}

footer a {
    transition: var(--transition);
}

footer a:hover {
    color: var(--primary-light) !important;
}

.text-white-50 {
    color: rgba(255, 255, 255, 0.7) !important;
}

/* ============================================
   Utilities
   ============================================ */
.opacity-90 {
    opacity: 0.9;
}

.fw-semibold {
    font-weight: 600;
}

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

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 768px) {
    .hero-section {
        min-height: 70vh;
        text-align: center;
    }
    
    .navbar-brand {
        font-size: 0.95rem;
    }
    
    section {
        padding: 3rem 0 !important;
    }
    
    .display-5 {
        font-size: 2rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ============================================
   WhatsApp Floating Button
   ============================================ */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: var(--white);
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    text-decoration: none;
}

.whatsapp-float:hover {
    background-color: #20ba5a;
    color: var(--white);
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.whatsapp-float i {
    font-size: 32px;
}

@media (max-width: 768px) {
    .whatsapp-float {
        width: 55px;
        height: 55px;
        bottom: 20px;
        right: 20px;
        font-size: 28px;
    }
    
    .whatsapp-float i {
        font-size: 28px;
    }
}