/* ============= VARIÁVEIS CSS ============= */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #e74c3c;
    --accent-color: #3498db;
    --dark-color: #111;
    --light-color: #f8f9fa;
    --text-color: #333;
    --text-light: #fff;
    --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --max-width: 1400px;
}

/* ============= RESET E BASE ============= */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

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

/* ============= HEADER ============= */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background-color: var(--primary-color);
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    box-shadow: var(--shadow-sm);
}

.logo img {
    height: 70px;
    width: auto;
    transition: var(--transition);
}

.logo img:hover {
    transform: scale(1.05);
}

/* Menu Hamburguer */
.menu-toggle {
    display: none;
}

.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    z-index: 101;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-light);
    transition: var(--transition);
}

/* Estado ativo do menu hamburguer */
.menu-toggle:checked + .hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle:checked + .hamburger span:nth-child(2) {
    opacity: 0;
}

.menu-toggle:checked + .hamburger span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Navegação */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-menu ul {
    display: flex;
    gap: 1.5rem;
}

.nav-menu a {
    color: var(--text-light);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition);
}

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

.nav-menu a:hover::after,
.nav-menu a:focus::after {
    width: 100%;
}

/* Botão */
.btn-cartilhas {
    background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    border: none;
    border-radius: 10px;
    padding: 5px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    font-family: "Poppins";
    text-transform: none;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: relative;
}

.cartilhas-link {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    padding: 20px 40px;
    color: white !important;
    text-decoration: none !important;
    position: relative;
    z-index: 2;
}

.icon {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.btn-text {
    letter-spacing: 0.2px;
}

.btn-cartilhas:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
}

.btn-cartilhas:hover .icon {
    transform: translateX(5px);
}

.btn-cartilhas:active {
    transform: translateY(0);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.btn-cartilhas::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(45deg);
    z-index: 1;
    transition: all 0.5s ease;
    opacity: 0;
}

.btn-cartilhas:hover::before {
    opacity: 1;
    animation: shine 1.5s infinite;
}

@keyframes shine {
    0% { left: -50%; }
    100% { left: 150%; }
}

/* ============= HERO SECTION ============= */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), 
                url('img/Background-Agrinho.png');
    background-size: cover;
    background-position: center;
    height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--text-light);
    padding: 0 5%;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.5rem);
    max-width: 700px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* ============= PORTFOLIO SECTION ============= */
.portfolio-section {
    padding: 4rem 5%;
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
    color: var(--primary-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--accent-color);
    margin: 0.5rem auto 0;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

/* City Cards */
.city-card {
    position: relative;
    height: 300px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
}

.city-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

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

.city-card:hover .city-image {
    filter: brightness(0.8) saturate(1.1);
    transform: scale(1.05);
}

.city-info {
    position: absolute;
    left: 20px;
    bottom: 20px;
    color: var(--text-light);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    z-index: 2;
    transition: var(--transition);
}

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

.city-name {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0;
}

.city-link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* ============= FOOTER SIMPLIFICADO ============= */
.footer {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 2rem 5%;
    text-align: center;
}

.footer-simple {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-logo img {
    height: auto;
    width: 150px;
    margin-bottom: 1rem;
}

.copyright {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ============= BOTÃO VOLTAR AO TOPO ============= */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--secondary-color);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-md);
    opacity: 1;
    visibility: visible;
    transition: var(--transition);
    z-index: 99;
}

.back-to-top:hover {
    background-color: #c0392b;
    transform: translateY(-5px);
}

.back-to-top i {
    transition: var(--transition);
}

.back-to-top:hover i {
    transform: translateY(-3px);
}

/* ============= RESPONSIVIDADE ============= */
@media (max-width: 992px) {
    .nav-menu ul {
        gap: 1rem;
    }
    
    .btn-cartilhas {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 0.8rem 5%;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--primary-color);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        clip-path: circle(0% at 100% 0);
        transition: clip-path 0.6s ease;
    }
    
    .menu-toggle:checked ~ .nav-menu {
        clip-path: circle(150% at 50% 50%);
    }
    
    .nav-menu ul {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    
    .hero {
        height: 50vh;
    }

    .footer {
        padding: 1.5rem 5%;
    }
    
    .footer-logo img {
        width: 120px;
    }
    
    .copyright {
        font-size: 0.8rem;
    }
}

@media (max-width: 576px) {
    .header {
        padding: 0.7rem 5%;
    }
    
    .logo img {
        height: 35px;
    }
    
    .hero {
        height: 40vh;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .city-card {
        height: 250px;
    }
}

/* ============= ANIMAÇÕES ============= */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.portfolio-grid > * {
    animation: fadeIn 0.6s ease forwards;
    opacity: 0;
}

.portfolio-grid > *:nth-child(1) { animation-delay: 0.1s; }
.portfolio-grid > *:nth-child(2) { animation-delay: 0.2s; }
.portfolio-grid > *:nth-child(3) { animation-delay: 0.3s; }
.portfolio-grid > *:nth-child(4) { animation-delay: 0.4s; }