/* ============================================
   DESIGN TOKENS - SISTEMA DE CORES E ESPAÇAMENTO
   ============================================ */

:root {
    /* CORES BASE - Azul Neon */
    --color-primary: #0A0E27;             /* Azul escuro profundo */
    --color-secondary: #1A1F3A;           /* Azul secundário */
    --color-accent: #00D4FF;              /* Azul neon cyan */
    --color-accent-alt: #0099FF;          /* Azul neon royal */
    --color-bg: #0F1419;                  /* Background principal */
    --color-bg-card: #1A2F4A;             /* Fundo dos cards */
    --color-text: #E8EFF7;                /* Texto principal */
    --color-text-secondary: #A0B3CC;      /* Texto secundário */
    --color-border: #00D4FF;              /* Borda neon */
    --color-border-subtle: rgba(0, 212, 255, 0.2);
    
    /* VARIAÇÕES - Tema Claro */
    --color-bg-light: #F9FAFB;            /* Cinza muito claro, quase branco */
    --color-bg-card-light: #DBEAFE;       /* Azul mais escuro nos cards */
    --color-text-light: #0F172A;          /* Azul muito escuro para contraste */
    --color-text-secondary-light: #64748B; /* Azul cinzento suave */
    --color-border-light: #60A5FA;        /* Azul médio para bordas */
    --color-accent-light: #3B82F6;        /* Azul médio brilhante */
    --color-accent-alt-light: #0369A1;    /* Azul escuro médio */
    
    /* VARIAÇÕES - Tema Escuro */
    --color-bg-dark: #050809;             /* Variação escura do fundo */
    --color-bg-card-dark: #0F1824;        /* Variação escura dos cards */
    --color-text-dark: #D0D9E8;           /* Variação escura do texto */
    --color-text-secondary-dark: #8899B0; /* Variação escura do texto secundário */
    --color-border-dark: rgba(0, 212, 255, 0.15);

    /* TIPOGRAFIA */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-mono: 'Courier New', monospace;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 600;
    --font-weight-bold: 700;
    --font-weight-extra-bold: 800;

    /* TAMANHOS DE FONTE */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.75rem;
    --font-size-3xl: 2.5rem;

    /* ESPAÇAMENTO - Escala 8px */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 24px;
    --space-2xl: 32px;
    --space-3xl: 48px;
    --space-4xl: 64px;

    /* BORDER RADIUS */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* SOMBRAS */
    --shadow-sm: 0 2px 8px rgba(0, 212, 255, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 212, 255, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 212, 255, 0.2);
    --shadow-xl: 0 12px 48px rgba(0, 212, 255, 0.25);

    /* TRANSIÇÕES */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s ease;
}

/* TEMA CLARO */
[data-theme="light"] {
    --color-bg: var(--color-bg-light);
    --color-bg-card: var(--color-bg-card-light);
    --color-text: var(--color-text-light);
    --color-text-secondary: var(--color-text-secondary-light);
    --color-border: var(--color-border-light);
    --color-accent: var(--color-accent-light);
    --color-accent-alt: var(--color-accent-alt-light);
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 4px 16px rgba(59, 130, 246, 0.1);
    --shadow-lg: 0 8px 32px rgba(59, 130, 246, 0.12);
}

/* TEMA ESCURO */
[data-theme="dark"] {
    --color-bg: var(--color-bg-dark);
    --color-bg-card: var(--color-bg-card-dark);
    --color-text: var(--color-text-dark);
    --color-text-secondary: var(--color-text-secondary-dark);
    --color-border: var(--color-border-dark);
}

/* ============================================
   RESET E TIPOGRAFIA GLOBAL
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    font-size: var(--font-size-base);
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
    min-height: 100vh;
}

/* ============================================
   CONTAINER E LAYOUT
   ============================================ */

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

/* ============================================
   HEADER
   ============================================ */

.header {
    padding: var(--space-3xl) 0 var(--space-2xl) 0;
    margin-bottom: var(--space-3xl);
}

.header-content {
    display: flex;
    align-items: center;
    gap: var(--space-2xl);
    justify-content: space-between;
    flex-wrap: wrap;
}

.logo-wrapper {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
}

.logo {
    width: 100%;
    height: 100%;
    color: var(--color-accent);
    transition: color var(--transition-base);
}

.neon-ring {
    animation: rotate 20s linear infinite;
    transform-origin: 60px 60px;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.steam-effect path {
    animation: wave 3s ease-in-out infinite;
}

.steam-effect path:nth-child(2) {
    animation-delay: 0.1s;
}

.steam-effect path:nth-child(3) {
    animation-delay: 0.2s;
}

@keyframes wave {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

/* Header Text - Título e Subtitle */
.header-text {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-grow: 1;
    min-width: 200px;
}

.header-text h1 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: var(--font-weight-extra-bold);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-alt) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
    letter-spacing: -0.5px;
    line-height: 1;
}

.header-text .subtitle {
    margin: 0;
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-regular);
    opacity: 0.9;
}

/* THEME TOGGLE */
.theme-toggle {
    background: rgba(26, 47, 74, 0.4);
    border: 2px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    transition: all var(--transition-base);
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    position: relative;
}

.theme-toggle:hover {
    background-color: rgba(0, 212, 255, 0.1);
    border-color: var(--color-accent);
    box-shadow: 0 0 12px rgba(0, 212, 255, 0.2);
}

[data-theme="light"] .theme-toggle {
    background: transparent;
    border-color: rgba(59, 130, 246, 0.2);
    color: #3B82F6;
}

[data-theme="light"] .theme-toggle:hover {
    background-color: rgba(59, 130, 246, 0.08);
    border-color: #3B82F6;
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.15);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    position: absolute;
}

.sun-icon {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

.moon-icon {
    opacity: 0;
    transform: scale(0) rotate(-180deg);
}

[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: scale(0) rotate(180deg);
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    text-align: center;
    margin-bottom: var(--space-3xl);
    padding: var(--space-2xl) var(--space-lg);
}

.hero h2 {
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    font-weight: var(--font-weight-extra-bold);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-alt) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-lg);
    line-height: 1.2;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ============================================
   STATS SECTION
   ============================================ */

.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    margin: var(--space-3xl) 0;
    padding: var(--space-2xl);
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-border);
}

.stat-box {
    text-align: center;
    padding: var(--space-xl);
    border-radius: var(--radius-md);
    border: 2px solid var(--color-border);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    transition: left var(--transition-base);
}

.stat-box:hover {
    background-color: rgba(0, 212, 255, 0.05);
    border-color: var(--color-border);
    transform: translateY(-2px);
}

.stat-box:hover::before {
    left: 100%;
}

.stat-number {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: var(--font-weight-extra-bold);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-alt) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-md);
}

.stat-label {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   CONTENT SECTION
   ============================================ */

.content {
    margin: var(--space-3xl) 0;
}

.category {
    margin-bottom: var(--space-4xl);
}

.category-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: var(--font-weight-extra-bold);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-alt) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-md);
    text-align: center;
}

.category-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: var(--space-2xl);
}

/* ============================================
   CARDS GRID
   ============================================ */

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.card {
    background-color: var(--color-bg-card);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left var(--transition-base);
}

.card:not(.disabled):hover {
    border-color: var(--color-accent);
    background-color: rgba(0, 212, 255, 0.05);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(0, 212, 255, 0.15);
}

.card:not(.disabled):hover::before {
    left: 100%;
}

.card.disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.card.disabled:hover {
    transform: none;
    border-color: var(--color-border-subtle);
}

.card-icon {
    font-size: 2.5rem;
    line-height: 1;
    display: block;
}

.card h4 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-accent);
    margin: 0;
}

.card p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
    flex-grow: 1;
}

.card-tag {
    display: inline-block;
    background: rgba(0, 212, 255, 0.15);
    color: var(--color-accent);
    padding: var(--space-xs) var(--space-md);
    border: 1px solid var(--color-accent);
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    width: fit-content;
}

.card-tag.coming-soon {
    background: rgba(160, 179, 204, 0.1);
    color: var(--color-text-secondary);
    border-color: var(--color-text-secondary);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    text-align: center;
    padding: var(--space-2xl);
    margin-top: var(--space-4xl);
    border-top: 2px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
}

.footer p {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin: var(--space-sm) 0;
    line-height: 1.6;
}

.footer strong {
    color: var(--color-accent);
    font-weight: var(--font-weight-bold);
    display: block;
}

/* ============================================
   SCROLL TO TOP BUTTON & MENU
   ============================================ */

.scroll-to-top-wrapper {
    position: fixed;
    bottom: var(--space-2xl);
    right: var(--space-2xl);
    z-index: 99;
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.scroll-to-top {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-alt) 100%);
    border: 2px solid var(--color-accent);
    color: var(--color-bg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    box-shadow: 0 4px 16px rgba(0, 212, 255, 0.3);
    flex-shrink: 0;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 212, 255, 0.5);
}

.scroll-to-top:active {
    transform: translateY(-2px);
}

.scroll-to-top svg {
    width: 24px;
    height: 24px;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform var(--transition-base);
}

.scroll-to-top.menu-open svg {
    transform: rotate(180deg);
}

.scroll-menu {
    position: absolute;
    bottom: 100%;
    right: 0;
    background: var(--color-bg-card);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-md) 0;
    min-width: 180px;
    max-height: 50vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--color-accent) var(--color-bg-card);
    box-shadow: 0 8px 32px rgba(0, 212, 255, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px) scaleY(0.95);
    transform-origin: bottom right;
    transition: all var(--transition-base);
    margin-bottom: var(--space-lg);
    z-index: 100;
}

.scroll-menu::-webkit-scrollbar {
    width: 8px;
}

.scroll-menu::-webkit-scrollbar-track {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
}

.scroll-menu::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-accent-alt) 100%);
    border-radius: 4px;
    border: 2px solid var(--color-bg-card);
}

.scroll-menu::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--color-accent-alt) 0%, var(--color-accent) 100%);
    box-shadow: 0 0 8px rgba(0, 212, 255, 0.4);
}

.scroll-menu.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scaleY(1);
}

.scroll-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.scroll-menu li {
    margin: 0;
}

.scroll-menu-link {
    display: block;
    padding: var(--space-md) var(--space-lg);
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
    position: relative;
}

.scroll-menu-link:hover {
    background-color: rgba(0, 212, 255, 0.1);
    border-left-color: var(--color-accent);
    color: var(--color-accent);
    padding-left: calc(var(--space-lg) + 4px);
}

.scroll-menu-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-accent-alt) 100%);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--transition-fast);
}

.scroll-menu-link:hover::before {
    transform: scaleY(1);
}

/* ============================================
   RESPONSIVIDADE - Tablet (768px)
   ============================================ */

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }

    .header {
        padding: var(--space-2xl) 0 var(--space-xl) 0;
        margin-bottom: var(--space-2xl);
    }

    .header-content {
        gap: var(--space-lg);
    }

    .logo-wrapper {
        width: 60px;
        height: 60px;
    }

    .header-text h1 {
        font-size: 1.5rem;
    }

    .header-text .subtitle {
        font-size: 1rem;
    }

    .hero {
        padding: var(--space-xl) var(--space-md);
        margin-bottom: var(--space-2xl);
    }

    .hero h2 {
        font-size: 1.8rem;
    }

    .stats-section {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        padding: var(--space-xl);
        margin: var(--space-2xl) 0;
    }

    .cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: var(--space-xl);
    }

    .category-title {
        font-size: 1.5rem;
    }

    .footer {
        padding: var(--space-xl);
        margin-top: var(--space-2xl);
    }
}

/* ============================================
   RESPONSIVIDADE - Mobile (480px)
   ============================================ */

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    body {
        padding: var(--space-md) 0 0 0;
    }

    .header {
        padding: var(--space-xl) 0 var(--space-lg) 0;
        margin-bottom: var(--space-xl);
    }

    .header-content {
        flex-direction: column;
        align-items: center;
        gap: var(--space-lg);
    }

    .logo-wrapper {
        width: 60px;
        height: 60px;
    }

    .header-text {
        text-align: center;
        flex-direction: column;
        gap: 8px;
    }

    .header-text h1 {
        font-size: 1.4rem;
    }

    .header-text .subtitle {
        font-size: 0.95rem;
    }

    .theme-toggle {
        width: 40px;
        height: 40px;
        padding: var(--space-sm);
    }

    .theme-toggle svg {
        width: 20px;
        height: 20px;
    }

    .hero {
        padding: var(--space-lg) var(--space-md);
        margin-bottom: var(--space-xl);
    }

    .hero h2 {
        font-size: 1.5rem;
        margin-bottom: var(--space-md);
    }

    .hero p {
        font-size: 0.95rem;
    }

    .stats-section {
        grid-template-columns: 1fr;
        gap: var(--space-md);
        padding: var(--space-lg);
        margin: var(--space-xl) 0;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .stat-label {
        font-size: 1rem;
    }

    .category {
        margin-bottom: var(--space-2xl);
    }

    .category-title {
        font-size: 1.3rem;
        margin-bottom: var(--space-sm);
    }

    .category-subtitle {
        font-size: 0.95rem;
        margin-bottom: var(--space-lg);
    }

    .cards-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        margin-bottom: var(--space-lg);
    }

    .card {
        padding: var(--space-lg);
    }

    .card h4 {
        font-size: var(--font-size-lg);
    }

    .card p {
        font-size: 0.85rem;
    }

    .card-icon {
        font-size: 2rem;
    }

    .footer {
        padding: var(--space-lg);
        margin-top: var(--space-2xl);
    }

    .footer p {
        font-size: 0.9rem;
    }

    .scroll-to-top-wrapper {
        bottom: var(--space-lg);
        right: var(--space-lg);
    }

    .scroll-to-top {
        width: 44px;
        height: 44px;
    }

    .scroll-to-top svg {
        width: 20px;
        height: 20px;
    }

    .scroll-menu {
        min-width: 160px;
        padding: var(--space-sm) 0;
    }

    .scroll-menu-link {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.8rem;
    }

    .scroll-menu-link:hover {
        padding-left: calc(var(--space-md) + 4px);
    }
}

/* ============================================
   ACESSIBILIDADE
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}