:root {
    --primary: #57818D;
    --primary-hover: #3D5C65;
    --secondary: #72A8B7;
    --accent: #8FD0E3;
    --dark: #0F1A1E;
    --light: #EFF1ED;
    --card-bg: #EDEFEF;
    --text-main: #1B1C1B;
    --text-muted: #595C58;
    --border-color: #C7CCC5;
    --shadow-sm: 0 2px 8px rgba(15, 26, 30, 0.04);
    --shadow-md: 0 8px 30px rgba(15, 26, 30, 0.06);
    --shadow-lg: 0 16px 40px rgba(15, 26, 30, 0.1);
    --radius-sm: 16px;
    --radius-md: 16px;
    --radius-lg: 50px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

h1,
h2,
h3,
h4 {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    color: var(--dark);
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header / Navbar */
header {
    background: rgba(37, 58, 64, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

#logo-img {
    height: 46px;
    width: auto;
    display: block;
    transition: var(--transition);
}

#logo-img:hover {
    transform: scale(1.02);
}

nav ul {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 16px;
}

.nav-divider {
    color: rgba(239, 241, 237, 0.4);
    font-weight: 300;
    font-size: 14px;
    pointer-events: none;
    user-select: none;
}

nav a {
    text-decoration: none;
    color: var(--light);
    font-weight: 200;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
    padding: 6px 0;
}

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

nav a:hover {
    color: var(--accent);
}

nav a:hover::after {
    width: 100%;
}

/* Menu Toggle Button */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--light);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    transition: var(--transition);
    z-index: 101;
}

.menu-toggle:hover {
    color: var(--accent);
}

.btn-cta {
    background-color: var(--primary);
    color: var(--light);
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 4px 14px rgba(87, 129, 141, 0.25);
    transition: var(--transition);
}

.btn-cta:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(87, 129, 141, 0.35);
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(to bottom, #2c464e 0%, #5e99a8 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 50px;
}

.hero-text h2 {
    font-size: 50px;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
    color: var(--light);
}

.hero-text p {
    font-size: 18px;
    color: rgba(239, 241, 237, 0.8);
    margin-bottom: 36px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    align-items: center;
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: #92D050;
    /* Lime green */
    color: #0F1A1E;
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
    box-shadow: 0 4px 14px rgba(146, 208, 80, 0.25);
    transition: var(--transition);
}

.btn-whatsapp:hover {
    background-color: #84C225;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(146, 208, 80, 0.4);
}

.btn-appointment {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: #FFFFFF;
    /* White */
    color: #0F1A1E;
    border: 2px solid var(--border-color);
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
    transition: var(--transition);
}

.btn-appointment:hover {
    background-color: #EFF1ED;
    border-color: #C7CCC5;
    transform: translateY(-2px);
}

.btn-icon {
    display: inline-block;
    flex-shrink: 0;
    font-size: 18px;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

#hero-pet-img {
    width: 100%;
    max-width: 460px;
    height: auto;
    display: block;
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px auto;
}

.section-header h3 {
    font-size: 36px;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-header p {
    color: var(--text-muted);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--light);
    border: 1px solid var(--border-color);
    padding: 40px 30px;
    border-radius: var(--radius-md);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.feature-icon {
    margin-bottom: 24px;
    background: var(--light);
    width: 90px;
    height: 90px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.feature-icon i {
    color: var(--primary);
    font-size: 3rem;
    /* 3x size */
    transition: var(--transition);
}

.feature-card:hover .feature-icon i {
    color: var(--primary-hover);
    transform: scale(1.1);
}

.feature-card h4 {
    font-size: 20px;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 15px;
}

/* Footer */
footer {
    background-color: var(--dark);
    color: var(--light);
    padding: 60px 0 30px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

#footer-logo {
    height: 48px;
    width: auto;
    display: block;
    margin-bottom: 16px;
    transition: var(--transition);
}

#footer-logo:hover {
    transform: scale(1.02);
}

.footer-brand h4 {
    color: var(--accent);
    font-size: 24px;
    margin-bottom: 16px;
}

.footer-brand p {
    color: #A1A59F;
    max-width: 320px;
    margin-bottom: 24px;
}

.footer-links h5 {
    font-family: 'Inter', sans-serif;
    color: var(--light);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #A1A59F;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid #393A38;
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #A1A59F;
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 992px) {
    .menu-toggle {
        display: block;
    }

    #navbar-menu {
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: rgba(37, 58, 64, 0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 2px solid var(--primary);
        max-height: 0;
        opacity: 0;
        overflow: hidden;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
        z-index: 99;
    }

    #navbar-menu.active {
        max-height: 400px;
        opacity: 1;
    }

    #navbar-menu ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 16px 24px;
    }

    #navbar-menu li {
        width: 100%;
        text-align: center;
    }

    #navbar-menu li a {
        display: block;
        padding: 14px 0;
        font-size: 16px;
        border-bottom: 1px solid rgba(239, 241, 237, 0.08);
        font-weight: 400;
    }

    #navbar-menu li a::after {
        display: none;
    }

    #navbar-menu li a:hover {
        color: var(--accent);
        background-color: rgba(239, 241, 237, 0.05);
    }

    #navbar-menu li:last-child a {
        border-bottom: none;
    }

    #navbar-menu .nav-divider {
        display: none;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-text h2 {
        font-size: 38px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        order: -1;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* Banners Intermediários entre Seções */
.section-banner {
    width: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-banner img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: var(--transition);
}

.section-banner img:hover {
    filter: brightness(1.02);
}