/*
 * OpenFrio — Main CSS
 * Variáveis, Tipografia e Sistema de Design
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Paleta baseada na Logo */
    --color-primary: #0d4a8a; /* Azul Escuro (Open) */
    --color-primary-dark: #083363;
    --color-primary-light: #1664b8;
    
    --color-secondary: #2196f3; /* Azul Claro (Frio / Termômetro) */
    --color-secondary-dark: #1976d2;
    --color-secondary-light: #64b5f6;
    
    --color-accent: #f57c00; /* Laranja (Grupo / Símbolo) */
    --color-accent-dark: #e65100;
    --color-accent-light: #ff9800;
    
    /* Cores Neutras */
    --color-bg: #f8fafc;
    --color-bg-alt: #f1f5f9;
    --color-text: #334155;
    --color-text-light: #64748b;
    --color-heading: #0f172a;
    --color-white: #ffffff;
    --color-black: #000000;
    
    /* Semânticas */
    --color-success: #10b981;
    --color-error: #ef4444;
    --color-warning: #f59e0b;
    
    /* Sombras e Raios */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-full: 9999px;
    
    /* Transições */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
}

/* Reset Básico */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    scroll-behavior: smooth;
    color: var(--color-text);
    background-color: var(--color-bg);
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
}

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

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

ul, ol {
    list-style: none;
}

/* Tipografia */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 2.5rem); letter-spacing: -0.01em; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

.text-lead {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    max-width: 600px;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

.section-light {
    background-color: var(--color-bg-alt);
}

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

.section-dark h2, .section-dark h3, .section-dark .text-lead {
    color: var(--color-white);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    background-color: rgba(33, 150, 243, 0.1);
    color: var(--color-secondary-dark);
    padding: 0.25rem 1rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-dark .section-badge {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
}

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    gap: 0.5rem;
    text-align: center;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-white);
    box-shadow: 0 4px 14px 0 rgba(245, 124, 0, 0.39);
}

.btn-primary:hover {
    background-color: var(--color-accent-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 124, 0, 0.4);
}

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

.btn-secondary:hover {
    background-color: rgba(13, 74, 138, 0.05);
    color: var(--color-primary);
}

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

.btn-white:hover {
    background-color: var(--color-bg);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.btn-whatsapp {
    background-color: #25D366;
    color: var(--color-white);
}

.btn-whatsapp:hover {
    background-color: #128C7E;
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-md);
}

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

.nav-brand img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--color-heading);
    font-weight: 500;
    font-size: 0.9375rem;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-heading);
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 10rem 0 6rem;
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    overflow: hidden;
}

/* Fallback background if image is missing */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, #041f40 100%);
    z-index: 0;
}

/* Overlay gradient se usar imagem */
.hero-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
    z-index: 0;
    mix-blend-mode: multiply;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero h1 {
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.hero h1 span {
    color: var(--color-secondary-light);
}

.hero .text-lead {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.25rem;
}

.hero-btns {
    display: flex;
    gap: 1rem;
    margin-top: 2.5rem;
}

.hero-features {
    display: flex;
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Comparativo Section */
.compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.compare-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    position: relative;
}

.compare-card.bad {
    border-top: 4px solid var(--color-error);
}

.compare-card.good {
    border-top: 4px solid var(--color-success);
    transform: scale(1.05);
    z-index: 1;
    box-shadow: var(--shadow-xl);
}

.compare-list {
    margin-top: 1.5rem;
}

.compare-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.9375rem;
}

.bad .compare-list li::before {
    content: "✕";
    color: var(--color-error);
    font-weight: bold;
}

.good .compare-list li::before {
    content: "✓";
    color: var(--color-success);
    font-weight: bold;
}

/* Process Section */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    position: relative;
}

.process-step {
    background-color: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal);
    position: relative;
    z-index: 1;
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: var(--color-primary-light);
    color: var(--color-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.process-step h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.process-step p {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* Benefícios Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.benefit-card {
    background-color: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all var(--transition-normal);
}

.benefit-card:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(33, 150, 243, 0.2);
}

.benefit-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(33, 150, 243, 0.1);
    color: var(--color-secondary-dark);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Portfólio */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.portfolio-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.portfolio-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.portfolio-img {
    height: 200px;
    background-color: var(--color-bg-alt);
    background-size: cover;
    background-position: center;
}

.portfolio-content {
    padding: 1.5rem;
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.portfolio-tag {
    background-color: var(--color-bg-alt);
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    color: var(--color-text-light);
}

/* FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item.active .faq-answer {
    padding-bottom: 1.5rem;
    max-height: 500px;
}

.faq-icon {
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

/* Footer */
.footer {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    height: 40px;
    filter: brightness(0) invert(1);
    margin-bottom: 1.5rem;
}

.footer-about {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    max-width: 400px;
}

.footer h4 {
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

/* Responsive */
@media (max-width: 992px) {
    .compare-grid {
        grid-template-columns: 1fr;
    }
    .compare-card.good {
        transform: scale(1);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-md);
        display: none;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 8rem 0 4rem;
    }
    
    .hero-btns {
        flex-direction: column;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* Utilitários */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 2rem; }
.mt-4 { margin-top: 1.5rem; }