/* Star Visualizer 3.0 - Estilos principais */

/* Reset e estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Paleta de cores principal */
    --color-bg-primary: #030314;
    --color-bg-secondary: #050528;
    --color-accent-primary: #00ffff;
    --color-accent-secondary: #4444ff;
    --color-text-primary: #ffffff;
    --color-text-secondary: #b8b8ff;
    --color-text-muted: #7a7a9d;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(45deg, #4444ff, #00ffff);
    --gradient-dark: linear-gradient(45deg, #030314, #050528);
    
    /* Sombras */
    --shadow-sm: 0 0 10px rgba(0, 255, 255, 0.3);
    --shadow-md: 0 0 20px rgba(0, 255, 255, 0.5);
    --shadow-lg: 0 0 30px rgba(0, 255, 255, 0.7);
    
    /* Fontes */
    --font-primary: 'Orbitron', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
    
    /* Espaçamentos */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;
    
    /* Bordas */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    
    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    margin-bottom: var(--space-md);
    font-weight: 700;
    line-height: 1.2;
}

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

a:hover {
    color: var(--color-text-primary);
    text-shadow: var(--shadow-sm);
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Header e navegação */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(3, 3, 20, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 255, 255, 0.1);
    transition: var(--transition-normal);
}

header.scrolled {
    box-shadow: var(--shadow-sm);
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    padding: 0 var(--space-lg);
}

.logo {
    display: flex;
    align-items: center;
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    text-shadow: var(--shadow-sm);
}

.logo img {
    height: 40px;
    margin-right: var(--space-sm);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: var(--space-lg);
}

.nav-links a {
    color: var(--color-text-secondary);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-accent-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent-primary);
    transition: var(--transition-normal);
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px 0;
    background: var(--color-accent-primary);
    transition: var(--transition-normal);
}

/* Seção principal do visualizador */
main {
    padding-top: 70px;
    min-height: 100vh;
}

.visualizer-container {
    position: relative;
    width: 100%;
    height: calc(100vh - 70px);
    overflow: hidden;
}

#canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.controls {
    position: absolute;
    top: var(--space-lg);
    left: var(--space-lg);
    z-index: 10;
    background: rgba(5, 5, 40, 0.7);
    padding: var(--space-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
    width: 300px;
    max-width: calc(100% - var(--space-lg) * 2);
}

.controls:hover {
    box-shadow: var(--shadow-lg);
}

.controls h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
    color: var(--color-accent-primary);
    text-align: center;
}

.file-upload {
    margin-bottom: var(--space-lg);
}

.upload-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: var(--space-md);
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    font-family: var(--font-primary);
    font-weight: 500;
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.upload-btn .icon {
    margin-right: var(--space-sm);
    font-size: 1.2rem;
}

input[type="file"] {
    display: none;
}

.audio-player {
    margin-bottom: var(--space-lg);
}

audio {
    width: 100%;
    height: 40px;
    border-radius: var(--border-radius-md);
    background: rgba(0, 0, 40, 0.3);
}

.settings {
    margin-bottom: var(--space-lg);
}

.setting-item {
    margin-bottom: var(--space-md);
}

.setting-item label {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.slider-container {
    display: flex;
    align-items: center;
}

.sensitivity-value,
.density-value {
    width: 40px;
    text-align: center;
    color: var(--color-accent-primary);
    font-size: 0.9rem;
}

input[type="range"] {
    flex-grow: 1;
    height: 6px;
    -webkit-appearance: none;
    background: var(--gradient-primary);
    border-radius: 3px;
    margin: 0 var(--space-sm);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-accent-primary);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

select {
    width: 100%;
    padding: var(--space-sm);
    background-color: rgba(0, 0, 40, 0.5);
    color: var(--color-text-primary);
    border: 1px solid var(--color-accent-secondary);
    border-radius: var(--border-radius-md);
    font-family: var(--font-secondary);
    cursor: pointer;
}

.preset-buttons {
    display: flex;
    gap: var(--space-md);
}

.preset-buttons button {
    flex: 1;
    padding: var(--space-sm);
    background-color: rgba(0, 0, 40, 0.5);
    color: var(--color-text-primary);
    border: 1px solid var(--color-accent-secondary);
    border-radius: var(--border-radius-md);
    font-family: var(--font-primary);
    cursor: pointer;
    transition: var(--transition-normal);
}

.preset-buttons button:hover {
    background-color: var(--color-accent-secondary);
    box-shadow: var(--shadow-sm);
}

/* Seções gerais */
.section {
    padding: var(--space-xl) 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--space-xl);
    color: var(--color-accent-primary);
    text-shadow: var(--shadow-sm);
}

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

/* Seção de recursos */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.feature-card {
    background: rgba(5, 5, 40, 0.5);
    border-radius: var(--border-radius-lg);
    padding: var(--space-lg);
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid rgba(0, 255, 255, 0.1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent-primary);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* Seção de tutorial */
.tutorial-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-primary);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.tutorial-img {
    margin-top: var(--space-md);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    max-width: 600px;
    width: 100%;
}

.pro-tip {
    background: rgba(0, 255, 255, 0.1);
    border-left: 4px solid var(--color-accent-primary);
    padding: var(--space-lg);
    border-radius: var(--border-radius-md);
    margin-top: var(--space-xl);
}

.pro-tip h3 {
    color: var(--color-accent-primary);
    margin-bottom: var(--space-sm);
}

/* Seção sobre */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
    align-items: center;
}

.about-text p {
    margin-bottom: var(--space-md);
    font-size: 1.05rem;
}

.about-img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.testimonials {
    text-align: center;
}

.testimonials h3 {
    margin-bottom: var(--space-lg);
}

.testimonial-slider {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: var(--space-lg);
    padding-bottom: var(--space-md);
    scrollbar-width: none;
}

.testimonial-slider::-webkit-scrollbar {
    display: none;
}

.testimonial {
    flex: 0 0 300px;
    scroll-snap-align: start;
    background: rgba(5, 5, 40, 0.5);
    border-radius: var(--border-radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(0, 255, 255, 0.1);
}

.testimonial p {
    font-style: italic;
    margin-bottom: var(--space-md);
}

.testimonial-author {
    color: var(--color-accent-primary);
    font-weight: 500;
}

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

.faq-item {
    margin-bottom: var(--space-md);
    border: 1px solid rgba(0, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    background: rgba(5, 5, 40, 0.5);
    cursor: pointer;
}

.faq-question h3 {
    margin: 0;
    font-size: 1.1rem;
}

.faq-toggle {
    font-size: 1.5rem;
    color: var(--color-accent-primary);
    transition: var(--transition-normal);
}

.faq-answer {
    padding: 0 var(--space-md);
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-normal);
}

.faq-item.active .faq-answer {
    padding: var(--space-md);
    max-height: 500px;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

/* Footer */
footer {
    background-color: var(--color-bg-secondary);
    padding: var(--space-xl) 0 var(--space-md);
    border-top: 1px solid rgba(0, 255, 255, 0.1);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.footer-logo img {
    height: 40px;
    margin-right: var(--space-sm);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xl);
}

.footer-column h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
    color: var(--color-accent-primary);
}

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

.footer-column li {
    margin-bottom: var(--space-xs);
}

.footer-column a {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.footer-column a:hover {
    color: var(--color-accent-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(0, 255, 255, 0.1);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: var(--space-sm);
}

/* Contêineres de anúncios */
.ad-container {
    width: 100%;
    max-width: 1200px;
    margin: var(--space-xl) auto;
    text-align: center;
    padding: 0 var(--space-lg);
}

/* Media queries para responsividade */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .main-nav {
        height: 60px;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        height: 0;
        flex-direction: column;
        background: rgba(3, 3, 20, 0.95);
        backdrop-filter: blur(10px);
        overflow: hidden;
        transition: var(--transition-normal);
        z-index: 999;
    }
    
    .nav-links.active {
        height: auto;
        padding: var(--space-lg) 0;
        border-bottom: 1px solid rgba(0, 255, 255, 0.1);
    }
    
    .nav-links li {
        margin: var(--space-sm) 0;
        text-align: center;
    }
    
    main {
        padding-top: 60px;
    }
    
    .visualizer-container {
        height: calc(100vh - 60px);
    }
    
    .controls {
        top: auto;
        bottom: var(--space-lg);
        left: 50%;
        transform: translateX(-50%);
        width: calc(100% - var(--space-lg) * 2);
        max-width: 400px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .controls {
        padding: var(--space-md);
    }
    
    .controls h2 {
        font-size: 1.2rem;
    }
    
    .section {
        padding: var(--space-lg) 0;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: var(--space-lg);
    }
    
    .feature-card {
        padding: var(--space-md);
    }
    
    .testimonial {
        flex: 0 0 260px;
    }
}