:root {
    /* Flat UI / UX Design System */
    --primary-blue: #1F3556;
    --primary-blue-hover: #15253c;
    --dark-blue: #1F3556;
    --accent-orange: #E07B5F;
    --accent-orange-hover: #c7674d;
    --support-green: #2F5440;
    --light-gray: #F9F9F5; /* Fundo da página */
    --white: #ffffff;      /* Superfícies */
    --text-main: #1F3556;
    --text-secondary: #5B6B80;
    --text-muted: #8A96A5; /* Placeholder */
    --border-color: #E5E5DF;
    --border-input: #D9D9D2;
    --preview-bg: #E4ECE6;
    
    /* Removing Shadows for Flat Design */
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    
    /* Radii */
    --radius-sm: 8px; /* Botões, inputs, selos */
    --radius-md: 12px; /* Cards, chips */
    --radius-lg: 16px; /* Painel de prévia */
    --radius-full: 9999px; /* Apenas se absolutamente necessário */
    
    --transition: all 0.2s ease-out;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--light-gray);
    color: var(--text-main);
    line-height: 1.6;
    font-weight: 400; /* Strict weights */
}

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

a:hover {
    color: var(--primary-blue-hover);
}

ul {
    list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Fraunces', serif;
    color: var(--primary-blue);
    font-weight: 500;
    line-height: 1.15;
    letter-spacing: -0.01em;
}

h1 { font-size: 2.75rem; }
h2 { font-size: 2.25rem; margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background-color: var(--accent-orange-hover);
    color: var(--white);
    transform: none; /* Flat design */
    box-shadow: none; /* Flat design */
}

.btn-secondary {
    background-color: var(--white);
    color: var(--dark-blue);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--light-gray);
    color: var(--dark-blue);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-blue);
    border: 1px solid var(--primary-blue);
}

.btn-outline:hover {
    background-color: rgba(31, 53, 86, 0.05);
    color: var(--primary-blue);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--dark-blue);
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-input);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-main);
    background-color: var(--white);
    transition: var(--transition);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
}

/* Navbar */
.navbar {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 50;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark-blue);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand span {
    color: var(--primary-blue);
}

.navbar-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-main);
    font-weight: 500;
}

.nav-link:hover {
    color: var(--primary-blue);
}

/* Mobile Bottom Nav */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
    z-index: 50;
    padding: 0.5rem 1rem;
}

.bottom-nav-list {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.75rem;
    gap: 0.25rem;
}

.bottom-nav-item.active {
    color: var(--primary-blue);
}

/* Hero Section */
.hero {
    background-color: var(--light-gray); /* Removed synthetic gradient */
    padding: 6rem 0 4rem;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--dark-blue);
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Cards */
.card {
    background-color: var(--white);
    border-radius: var(--radius-md);
    box-shadow: none;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.card:hover {
    box-shadow: none;
    transform: none;
}

/* Footer */
.footer {
    background-color: var(--dark-blue);
    color: var(--white);
    padding: 3rem 0;
    margin-top: 4rem;
}

.footer a {
    color: var(--border-color);
}

.footer a:hover {
    color: var(--white);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}