/* ============================================
   EU CONFIO - Design System & Styles
   ============================================ */

:root {
    /* Cores */
    --color-primary: #1567B9;
    --color-primary-dark: #1C1B4D;
    --color-secondary: #4FEC69;
    --color-bg-light: #F5F5F5;
    --color-white: #FFFFFF;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-border: #E0E0E0;

    /* Tipografia */
    --font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 20px;
    --font-size-xl: 32px;
    --font-size-2xl: 40px;
    --font-size-3xl: 48px;

    /* Espaçamento */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 999px;
}

/* ============= Reset & Base ============= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background-color: var(--color-white);
    line-height: 1.6;
    font-size: var(--font-size-base);
}

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

a:hover {
    opacity: 0.8;
}

/* ============= Container ============= */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============= Header ============= */
.header {
    background-color: var(--color-primary);
    padding: var(--spacing-lg) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-white);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav {
    display: flex;
    gap: var(--spacing-xl);
    flex: 1;
    margin-left: var(--spacing-xl);
}

.nav-link {
    color: var(--color-white);
    font-size: var(--font-size-base);
}

/* ============= Botões ============= */
.btn {
    padding: 12px 32px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.btn-primary:hover {
    background-color: #4ec846;
}

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

.btn-secondary:hover {
    background-color: var(--color-bg-light);
}

/* ============= Hero Section ============= */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, #2e7ab8 100%);
    color: var(--color-white);
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============= Sections ============= */
section {
    padding: var(--spacing-2xl) 0;
}

section:nth-child(even) {
    background-color: var(--color-bg-light);
}

h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary-dark);
}

p {
    margin-bottom: var(--spacing-md);
}

/* ============= Download Section ============= */
.download {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.download h2 {
    color: var(--color-white);
}

.download-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

/* ============= Responsive ============= */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .nav {
        flex-direction: column;
        margin-left: 0;
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    h2 {
        font-size: var(--font-size-xl);
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ============= Utility Classes ============= */
.text-center {
    text-align: center;
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}