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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
}

/* Loader inicial */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #3498db, #2980b9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s;
}

.loader-content {
    text-align: center;
    color: white;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Header com gradiente animado */
header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(-45deg, #3498db, #2980b9, #2c3e50, #3498db);
    background-size: 400% 400%;
    color: white;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    animation: gradientBG 15s ease infinite;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

/* Container de frases motivacionais */
.motivacional-container {
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 10px;
    margin: 20px auto;
    max-width: 800px;
    backdrop-filter: blur(5px);
}

/* Seções de conteúdo */
.pasta {
    background: white;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.pasta:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

h2 {
    color: #2c3e50;
    font-size: 1.8em;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #3498db;
    position: relative;
}

.pasta p {
    color: #666;
    font-size: 1.1em;
    margin-bottom: 20px;
}

/* Grade de botões */
.botoes {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
}

/* Estilo dos botões */
button {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1em;
    text-align: left;
    min-height: 60px;
    position: relative;
    overflow: hidden;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    background: linear-gradient(135deg, #2980b9, #2c3e50);
}

button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease;
}

button:active::after {
    width: 300px;
    height: 300px;
}

/* Player de vídeo */
.video-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    animation: fadeIn 0.3s forwards;
}

/* Animações */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Classes de animação */
.animate-fadeIn {
    animation: fadeIn 1s forwards;
}

.animate-slideIn {
    animation: slideIn 0.5s forwards;
}

/* Responsividade */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    header h1 {
        font-size: 2em;
    }

    .botoes {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }

    button {
        min-height: 50px;
        font-size: 0.9em;
        padding: 10px 15px;
    }

    .video-overlay {
        padding: 10px;
    }
}

/* Suporte para dispositivos móveis */
@media (hover: none) {
    button:hover {
        transform: none;
        box-shadow: none;
    }
}