/* ========================================
   E-TOMIC - CSS Principal
   Cores vibrantes atômicas + Design moderno
======================================== */

/* Importar fontes */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@700;800;900&family=Poppins:wght@300;400;500;600;700&display=swap');

/* ========================================
   Variáveis CSS
======================================== */
:root {
    /* Cores Atômicas */
    --atomic-orange: #FF6B35;
    --atomic-red: #E63946;
    --atomic-yellow: #FFB800;
    --atomic-purple: #9D4EDD;
    
    /* Backgrounds */
    --dark-bg: #0A0A0A;
    --dark-card: #151515;
    --dark-lighter: #1F1F1F;
    
    /* Textos */
    --text-white: #FFFFFF;
    --text-gray: #B0B0B0;
    --text-dark: #404040;
    
    /* Gradientes */
    --gradient-atomic: linear-gradient(135deg, var(--atomic-orange), var(--atomic-red));
    --gradient-energy: linear-gradient(135deg, var(--atomic-yellow), var(--atomic-orange));
    --gradient-purple: linear-gradient(135deg, var(--atomic-purple), var(--atomic-red));
    
    /* Shadows */
    --shadow-glow: 0 0 40px rgba(255, 107, 53, 0.3);
    --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.5);
    --shadow-intense: 0 20px 60px rgba(255, 107, 53, 0.5);
    
    /* Tipografia */
    --font-display: 'Montserrat', sans-serif;
    --font-body: 'Poppins', sans-serif;
    
    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Espaçamentos */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    background: var(--dark-bg);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 16px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

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

ul, ol {
    list-style: none;
}

button {
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
}

/* ========================================
   Tipografia
======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    letter-spacing: -2px;
}

h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: -1px;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
}

h4 {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-gray);
    line-height: 1.8;
}

.text-gradient {
    background: var(--gradient-atomic);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Container & Layout
======================================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
}

.container-fluid {
    width: 100%;
    padding: 0 5%;
}

.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-dark {
    background: var(--dark-card);
}

.section-gradient {
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-card) 100%);
}

/* ========================================
   Header & Navegação
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 5%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 107, 53, 0.1);
    transition: var(--transition-normal);
}

.header.scrolled {
    padding: 1rem 5%;
    box-shadow: var(--shadow-glow);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 900;
    background: var(--gradient-atomic);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 3px;
    transition: var(--transition-normal);
}

.logo:hover {
    transform: scale(1.05);
    filter: brightness(1.2);
}

/* Navegação Desktop */
.nav-menu {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.nav-link {
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition-normal);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-atomic);
    transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

/* Botão CTA Header */
.btn-header {
    padding: 1rem 2rem;
    background: var(--gradient-atomic);
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    color: white;
    box-shadow: var(--shadow-glow);
    transition: var(--transition-normal);
}

.btn-header:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-intense);
}

/* Menu Hamburguer */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: transparent;
    padding: 0.5rem;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    width: 30px;
    height: 3px;
    background: var(--atomic-orange);
    border-radius: 3px;
    transition: var(--transition-normal);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* Menu Mobile */
.nav-mobile {
    display: none;
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background: var(--dark-card);
    padding: 8rem 3rem 3rem;
    transition: right var(--transition-slow);
    z-index: 999;
    box-shadow: -10px 0 50px rgba(0, 0, 0, 0.8);
}

.nav-mobile.active {
    right: 0;
}

.nav-mobile-menu {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.nav-mobile-link {
    font-size: 1.5rem;
    font-weight: 700;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 107, 53, 0.1);
    transition: var(--transition-normal);
}

.nav-mobile-link:hover {
    color: var(--atomic-orange);
    padding-left: 1rem;
}

/* Overlay do Menu */
.menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 998;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.menu-overlay.active {
    display: block;
    opacity: 1;
}

/* ========================================
   Botões
======================================== */
.btn {
    display: inline-block;
    padding: 1.2rem 3rem;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 50px;
    transition: var(--transition-normal);
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-atomic);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-intense);
}

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

.btn-secondary:hover {
    background: var(--atomic-orange);
    color: white;
    transform: translateY(-3px);
}

.btn-large {
    padding: 1.5rem 4rem;
    font-size: 1.3rem;
}

/* ========================================
   Cards
======================================== */
.card {
    background: var(--dark-card);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    border: 1px solid rgba(255, 107, 53, 0.1);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-atomic);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.card:hover::before {
    transform: scaleX(1);
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--atomic-orange);
    box-shadow: var(--shadow-intense);
}

.card-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
}

.card-title {
    color: var(--atomic-orange);
    margin-bottom: var(--spacing-sm);
}

.card-text {
    color: var(--text-gray);
    line-height: 1.8;
}

/* ========================================
   Grid System
======================================== */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ========================================
   Seção Hero
======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 5% 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 70%);
    animation: pulse 10s ease-in-out infinite;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--text-gray);
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

/* ========================================
   Seção de Estatísticas
======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: var(--spacing-lg);
}

.stat-card {
    text-align: center;
    padding: 3rem 2rem;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 4.5rem;
    font-weight: 900;
    background: var(--gradient-atomic);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--text-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* ========================================
   Footer
======================================== */
.footer {
    background: var(--dark-card);
    padding: var(--spacing-xl) 5% var(--spacing-md);
    border-top: 1px solid rgba(255, 107, 53, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
    color: var(--atomic-orange);
    margin-bottom: var(--spacing-md);
    font-size: 1.3rem;
}

.footer-section p,
.footer-section a {
    color: var(--text-gray);
    line-height: 2;
    transition: var(--transition-normal);
}

.footer-section a:hover {
    color: var(--atomic-orange);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 107, 53, 0.1);
    color: var(--text-gray);
}

.footer-social {
    display: flex;
    gap: 1.5rem;
    margin-top: var(--spacing-sm);
}

.social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 107, 53, 0.1);
    border-radius: 50%;
    font-size: 1.2rem;
    transition: var(--transition-normal);
}

.social-link:hover {
    background: var(--atomic-orange);
    transform: translateY(-5px);
}

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.pt-1 { padding-top: var(--spacing-sm); }
.pt-2 { padding-top: var(--spacing-md); }
.pt-3 { padding-top: var(--spacing-lg); }
.pt-4 { padding-top: var(--spacing-xl); }

.pb-1 { padding-bottom: var(--spacing-sm); }
.pb-2 { padding-bottom: var(--spacing-md); }
.pb-3 { padding-bottom: var(--spacing-lg); }
.pb-4 { padding-bottom: var(--spacing-xl); }