/* ========================================
   CSS Variables - Paleta Target Multimídia (Dark Theme)
   ======================================== */
:root {
    /* Cores Primárias */
    --color-primary-dark: #2C3E50;
    --color-primary-medium: #1667B1;
    --color-primary-light: #3498DB;
    --color-primary-darker: #1a252f;

    /* Cores de Destaque */
    --color-accent-start: #F1C40F;
    --color-accent-end: #FF9900;
    --gradient-cta: linear-gradient(90deg, #F1C40F 0%, #FF9900 100%);
    --gradient-primary: linear-gradient(135deg, #1667B1 0%, #3498DB 100%);

    /* Backgrounds */
    --color-bg-white: #FFFFFF;
    --color-bg-dark: #2C3E50;
    --color-bg-darker: #1a252f;

    /* Textos */
    --color-text-primary: #000000;
    --color-text-secondary: #444444;
    --color-text-tertiary: #8E8E8E;
    --color-text-on-dark: #FFFFFF;
    --color-text-muted: rgba(255, 255, 255, 0.7);

    /* Bordas */
    --color-border: #DADADA;
    --color-border-subtle: rgba(255, 255, 255, 0.1);

    /* Disabled */
    --color-disabled: rgba(218, 218, 218, 0.6);

    /* Tipografia - Editorial Style */
    --font-display: 'Montserrat', sans-serif;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-xxl: 64px;
    --spacing-xxxl: 96px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.20);
    --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.25);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-on-dark);
    background-color: var(--color-bg-dark);
    line-height: 1.7;
    font-size: 17px;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ========================================
   Container
   ======================================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* ========================================
   Header
   ======================================== */
.header {
    background-color: var(--color-bg-white);
    padding: var(--spacing-lg) 0;
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
}

.header-logo img {
    max-width: 180px;
    height: auto;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.1));
}

.header-nav {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

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

.nav-link.active {
    background: var(--gradient-cta);
    color: var(--color-text-primary);
    border-color: transparent;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to right,
        rgba(44, 62, 80, 0.95) 0%,
        rgba(44, 62, 80, 0.85) 50%,
        rgba(44, 62, 80, 0.4) 100%
    );
    z-index: 1;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

.hero-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--spacing-xxxl) var(--spacing-xl);
    width: 100%;
}

.hero-text {
    max-width: 700px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 5rem;
    font-weight: 800;
    color: var(--color-text-on-dark);
    line-height: 1;
    letter-spacing: -2px;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.hero-description {
    font-size: 1.5rem;
    color: var(--color-bg-white);
    line-height: 1.7;
    letter-spacing: -0.2px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* ========================================
   Main Content
   ======================================== */
.main {
    padding: var(--spacing-xxxl) 0;
    min-height: 100vh;
}

.section-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--color-text-on-dark);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    position: relative;
    letter-spacing: -1px;
    line-height: 1.1;
    text-transform: uppercase;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100px;
    height: 5px;
    background: var(--gradient-cta);
    border-radius: 3px;
}

/* ========================================
   Áreas Menu
   ======================================== */
.areas-menu {
    margin-bottom: var(--spacing-xxxl);
}

.areas-list {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.area-item {
    background: var(--color-bg-white);
    color: var(--color-primary-dark);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    position: relative;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.area-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    background: var(--gradient-cta);
    color: var(--color-text-primary);
}

.area-item.active {
    background: var(--gradient-primary);
    color: var(--color-bg-white);
    box-shadow: var(--shadow-xl);
    transform: translateY(-2px);
}

/* ========================================
   Recursos Menu
   ======================================== */
.recursos-menu {
    margin-bottom: var(--spacing-xxxl);
}

.recursos-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.recurso-item {
    background-color: var(--color-bg-white);
    color: var(--color-primary-dark);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    padding: var(--spacing-lg);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    min-height: 120px;
    justify-content: center;
}

.recurso-icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary-medium);
    transition: all var(--transition-normal);
}

.recurso-name {
    font-size: 0.9375rem;
    line-height: 1.4;
}

.recurso-item:hover:not(.disabled) {
    border-color: var(--color-primary-light);
    background: var(--gradient-primary);
    color: var(--color-bg-white);
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.recurso-item:hover:not(.disabled) .recurso-icon {
    color: var(--color-bg-white);
    transform: scale(1.1);
}

.recurso-item.active {
    background: var(--gradient-primary);
    color: var(--color-bg-white);
    border-color: transparent;
    box-shadow: var(--shadow-xl);
    transform: scale(1.02);
}

.recurso-item.active .recurso-icon {
    color: var(--color-bg-white);
}

.recurso-item.disabled {
    opacity: 0.3;
    cursor: not-allowed;
    background-color: rgba(255, 255, 255, 0.5);
    color: var(--color-text-tertiary);
    box-shadow: none;
}

.recurso-item.hidden {
    display: none;
}

/* Badge de contador */
.recurso-item .badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--gradient-cta);
    color: var(--color-text-primary);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--color-bg-dark);
}

/* ========================================
   Content Area (Accordion)
   ======================================== */
.content-area {
    margin-bottom: var(--spacing-xxl);
}

.content-wrapper {
    background-color: var(--color-bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: slideDown var(--transition-normal);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-header {
    background: var(--gradient-primary);
    color: var(--color-bg-white);
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.content-header h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    text-transform: uppercase;
}

.close-btn {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: var(--color-bg-white);
    font-size: 1.75rem;
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: rotate(90deg);
}

.content-body {
    padding: var(--spacing-xl);
}

.exemplo-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.exemplo-description h4 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary-medium);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.5px;
    line-height: 1.2;
    text-transform: uppercase;
}

.exemplo-resultado {
    font-size: 1rem;
    color: var(--color-text-tertiary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-border);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.exemplo-description p {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    letter-spacing: -0.2px;
    margin-bottom: var(--spacing-md);
}

/* Markdown Content Styles */
.exemplo-text {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    letter-spacing: -0.2px;
}

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

.exemplo-text h1,
.exemplo-text h2,
.exemplo-text h3,
.exemplo-text h4,
.exemplo-text h5,
.exemplo-text h6 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--color-primary-medium);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.exemplo-text h1 { font-size: 1.75rem; }
.exemplo-text h2 { font-size: 1.5rem; }
.exemplo-text h3 { font-size: 1.25rem; }
.exemplo-text h4 { font-size: 1.125rem; }

.exemplo-text strong {
    font-weight: 700;
    color: var(--color-text-primary);
}

.exemplo-text em {
    font-style: italic;
    color: var(--color-accent);
}

.exemplo-text ul,
.exemplo-text ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.exemplo-text li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.8;
}

.exemplo-text blockquote {
    border-left: 4px solid var(--color-accent);
    padding-left: var(--spacing-md);
    margin: var(--spacing-md) 0;
    font-style: italic;
    color: var(--color-text-tertiary);
}

.exemplo-text code {
    background-color: rgba(0, 0, 0, 0.05);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.95em;
}

.exemplo-text pre {
    background-color: rgba(0, 0, 0, 0.05);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

.exemplo-text pre code {
    background-color: transparent;
    padding: 0;
}

.exemplo-text hr {
    border: none;
    border-top: 2px solid var(--color-border);
    margin: var(--spacing-lg) 0;
}

.exemplo-text a {
    color: var(--color-accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-fast);
}

.exemplo-text a:hover {
    border-bottom-color: var(--color-accent);
}

.exemplo-video {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 3px solid rgba(255, 255, 255, 0.1);
}

.exemplo-video iframe,
.exemplo-video video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Navegação entre exemplos */
.navigation-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.nav-btn {
    background: var(--gradient-cta);
    color: var(--color-text-primary);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.nav-btn:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none;
}

.nav-info {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--color-text-tertiary);
    font-weight: 600;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background-color: var(--color-bg-darker);
    color: var(--color-text-muted);
    padding: var(--spacing-xl) 0;
    text-align: center;
    margin-top: var(--spacing-xxxl);
    border-top: 1px solid var(--color-border-subtle);
}

.footer p {
    font-size: 0.9375rem;
    font-weight: 400;
}

/* ========================================
   Utility Classes
   ======================================== */
.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn var(--transition-slow);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Scroll Animations
   ======================================== */
@media (prefers-reduced-motion: no-preference) {
    .areas-menu,
    .recursos-menu,
    .content-area {
        animation: fadeIn 0.6s ease-out;
    }
}

/* ========================================
   Loading State
   ======================================== */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}