/* 
 * BFA Contadores - Estilos Principais
 * Cores: Azul Marinho (#002147) e Dourado (#C5A059)
 */

:root {
    --primary-color: #002147;
    --secondary-color: #C5A059;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

h1, h2, h3 {
    font-family: 'Playfair Display', serif;
    color: var(--primary-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* Header & Nav */
#main-header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

#main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 60px;
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links > li > a {
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    font-size: 0.9rem;
}

.nav-links > li > a:hover {
    color: var(--secondary-color);
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    min-width: 250px;
    display: none;
    padding: 10px 0;
    border-top: 3px solid var(--secondary-color);
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    font-size: 0.85rem;
    color: var(--primary-color);
}

.dropdown-menu li a:hover {
    background: var(--light-bg);
    color: var(--secondary-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 700;
    cursor: pointer;
    text-transform: uppercase;
    font-size: 0.85rem;
}

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

.btn-primary:hover {
    background: #003366;
}

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

.btn-gold {
    background: var(--secondary-color);
    color: var(--white);
}

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

/* Hero */
#hero {
    background: linear-gradient(rgba(0,33,71,0.8), rgba(0,33,71,0.8)), url('https://images.unsplash.com/photo-1450101499163-c8848c66ca85?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    height: 80vh;
    display: flex;
    align-items: center;
    color: var(--white);
    text-align: center;
}

#hero h1 {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 20px;
}

#hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Stats */
#stats {
    padding: 60px 0;
    background: var(--primary-color);
    color: var(--white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

/* Services Preview */
#services-preview {
    padding: 100px 0;
    background: var(--light-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    text-align: center;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-card i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

/* Footer */
#main-footer {
    background: #00152e;
    color: #ccc;
    padding: 80px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-logo {
    height: 50px;
    margin-bottom: 20px;
    filter: brightness(0) invert(1);
}

.footer-grid h3 {
    color: var(--white);
    margin-bottom: 25px;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.2rem;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-contact p {
    margin-bottom: 15px;
}

.footer-contact i {
    color: var(--secondary-color);
    margin-right: 10px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 0.8rem;
}

/* Mobile */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
}

@media (max-width: 992px) {
    .nav-links, .header-cta {
        display: none;
    }
    .mobile-menu-toggle {
        display: block;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    #hero h1 {
        font-size: 2.5rem;
    }
}

/* Page Header */
.page-header {
    background: var(--primary-color);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.page-header h1 {
    color: var(--white);
    font-size: 3rem;
}

.page-content {
    padding: 80px 0;
}

.content-grid, .service-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.reversed {
    direction: rtl;
}
.reversed .detail-text {
    direction: ltr;
}

/* Contact Form */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
    padding: 80px 0;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

#back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--secondary-color);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: none;
    z-index: 999;
}