/* --- VARIÁVEIS E RESET --- */
:root {
    --cor-primaria: #2563eb;
    --cor-primaria-escura: #1e40af;
    --cor-secundaria: #16a34a;
    --cor-fundo: #f1f5f9;
    /* Um pouco mais escuro que o branco puro para contraste */
    --cor-card: #ffffff;
    --cor-texto: #1f2933;
    --cor-texto-suave: #64748b;
    /* Cor mais moderna para texto secundário */
    --sombra-suave: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --sombra-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --transicao: all 0.3s ease;
}

/* MODO ESCURO */
[data-theme="dark"] {
    --cor-fundo: #0f172a;
    --cor-card: #1e293b;
    --cor-texto: #e2e8f0;
    --cor-texto-suave: #94a3b8;
    --sombra-suave: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --sombra-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--cor-fundo);
    color: var(--cor-texto);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
    padding-top: 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

/* --- NAVBAR (CABEÇALHO) --- */
.header {
    background: var(--cor-primaria);
    background: linear-gradient(135deg, var(--cor-primaria) 0%, var(--cor-primaria-escura) 100%);
    color: white;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.header-container {
    max-width: 1110px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo a {
    font-size: 20px;
    font-weight: 700;
    color: white;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Ícone simples ao lado do logo */
.logo svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

/* Menu Desktop */
.menu {
    display: flex;
    gap: 32px;
}

.menu a {
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    position: relative;
    padding: 4px 0;
    transition: color 0.2s;
}

.menu a:hover {
    color: white;
}

/* Efeito de sublinhado animado */
.menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: white;
    transition: width 0.3s ease;
}

.menu a:hover::after {
    width: 100%;
}

/* Botão Toggle Tema */
.toggle-theme {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transicao);
    color: white;
    margin-left: 16px;
}

.toggle-theme:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: rotate(15deg) scale(1.05);
}

/* Menu Hamburguer (Mobile) */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

/* --- CONTAINER E SEÇÕES --- */
.container {
    max-width: 1110px;
    margin: 40px auto;
    padding: 0 20px;
}

.hero-text {
    text-align: center;
    margin-bottom: 40px;
}

.hero-text h2 {
    font-size: 28px;
    color: var(--cor-texto);
    margin-bottom: 8px;
}

.hero-text p {
    color: var(--cor-texto-suave);
    font-size: 18px;
}

/* --- CARDS (NOVO DESIGN) --- */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.card {
    background-color: var(--cor-card);
    border-radius: 16px;
    padding: 32px 24px;
    text-decoration: none;
    color: var(--cor-texto);
    box-shadow: var(--sombra-suave);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transicao);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

/* Barra decorativa no topo do card */
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--cor-primaria), var(--cor-secundaria));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--sombra-hover);
    border-color: rgba(37, 99, 235, 0.1);
}

.card:hover::before {
    opacity: 1;
}

.card-icon {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--cor-primaria);
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: var(--transicao);
}

.card svg {
    width: 28px;
    height: 28px;
    stroke-width: 2;
}

.card:hover .card-icon {
    background-color: var(--cor-primaria);
    color: white;
    transform: scale(1.1);
}

.card h3 {
    font-size: 20px;
    margin-bottom: 8px;
    font-weight: 700;
}

.card p {
    font-size: 15px;
    color: var(--cor-texto-suave);
    line-height: 1.5;
    flex-grow: 1;
    /* Faz o texto ocupar o espaço para alinhar botões se houver */
}

.seta {
    margin-top: 20px;
    color: var(--cor-primaria);
    font-weight: 600;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 4px;
    opacity: 0;
    transform: translateX(-10px);
    transition: var(--transicao);
}

.card:hover .seta {
    opacity: 1;
    transform: translateX(0);
}

/* --- FOOTER --- */
footer {
    background-color: #0f172a;
    /* Sempre escuro */
    color: #cbd5f5;
    padding: 40px 20px;
    text-align: center;
    margin-top: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer p {
    margin-bottom: 16px;
    font-weight: 500;
}

footer a {
    color: #93c5fd;
    margin: 0 12px;
    font-size: 14px;
    transition: color 0.2s;
}

footer a:hover {
    color: white;
    text-decoration: underline;
}

/* --- CORREÇÃO DO MENU DROPDOWN --- */

/* Garante que o pai dos dropdowns tenha posição relativa */
nav .menu-item {
    position: relative;
}

/* Seta do menu */
nav .menu-item>a::after {
    content: ' ▾';
    font-size: 10px;
    margin-left: 4px;
    opacity: 0.7;
}

/* Menu Dropdown (Escondido por padrão) */
nav .dropdown-menu {
    display: none !important;
    /* FORÇA ficar fechado */
    position: absolute;
    top: 100%;
    left: 0;
    background-color: white;
    min-width: 220px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-radius: 0 0 8px 8px;
    z-index: 9999;
    /* Garante que fique por cima de tudo */
    padding: 8px 0;
    border-top: 1px solid #f1f5f9;
}

/* Mostra ao passar o mouse (APENAS NO DESKTOP) */
@media (min-width: 769px) {
    nav .menu-item:hover .dropdown-menu {
        display: block !important;
        /* FORÇA abrir no hover */
        animation: fadeIn 0.2s ease;
    }
}

/* Links dentro do dropdown */
nav .dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: #1f2933 !important;
    /* Texto escuro sempre dentro da caixa */
    font-size: 15px;
    text-decoration: none;
    white-space: nowrap;
}

/* Hover no link do dropdown */
nav .dropdown-menu a:hover {
    background-color: #f8fafc;
    color: var(--cor-primaria) !important;
}

/* --- ESTILOS PARA MODO ESCURO NO DROPDOWN --- */
[data-theme="dark"] nav .dropdown-menu {
    background-color: #1e293b;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] nav .dropdown-menu a {
    color: #e2e8f0 !important;
}

[data-theme="dark"] nav .dropdown-menu a:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

/* --- ESTILOS MOBILE (CELULAR) --- */
@media (max-width: 768px) {

    /* No mobile, o item de menu vira bloco para empilhar */
    nav .menu-item {
        display: block;
        width: 100%;
    }

    /* O dropdown vira estático para aparecer embaixo no mobile */
    nav .dropdown-menu {
        position: static;
        display: none !important;
        /* Continua fechado até clicar */
        width: 100%;
        box-shadow: none;
        border: none;
        background-color: rgba(0, 0, 0, 0.2);
        /* Fundo levemente escuro para indicar submenu */
        padding-left: 15px;
        /* Indentação visual */
        border-radius: 0;
    }

    /* Classe auxiliar para abrir no mobile */
    nav .dropdown-menu.mobile-open {
        display: block !important;
    }
}

/* --- MEDIA QUERIES --- */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
        z-index: 1002;
    }

    .menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--cor-card);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
        transition: right 0.3s ease;
        z-index: 1001;
    }

    .menu.active {
        right: 0;
    }

    .menu a {
        color: var(--cor-texto);
        font-size: 18px;
    }

    /* Overlay escuro quando o menu abre */
    .overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1000;
        display: none;
        opacity: 0;
        transition: opacity 0.3s;
    }

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

@media (max-width: 600px) {
    .header-container {
        padding: 12px 20px;
    }

    .hero-text h2 {
        font-size: 24px;
    }

    .cards {
        grid-template-columns: 1fr;
        /* 1 coluna no mobile */
    }
}