/* ===== RESET E BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
}

/* ===== GLASS CARD COM ANIMAÇÃO ===== */
.glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    will-change: transform;
}

.glass-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.4);
    border-color: rgba(96, 165, 250, 0.5);
}

/* ===== GRADIENTE DE TEXTO ===== */
.gradient-text {
    background: linear-gradient(135deg, #60A5FA, #06B6D4);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

/* ===== MÓDULOS (CARDS) ===== */
.module-card {
    transition: all 0.2s ease;
    will-change: transform;
}

.module-card.active {
    border: 1px solid #3b82f6;
    background: rgba(59, 130, 246, 0.15);
    box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.4);
    transform: scale(1.02);
}

/* ===== QUIZ OPTIONS ===== */
.quiz-option {
    transition: all 0.2s ease;
    cursor: pointer;
}

.quiz-option:hover {
    background: rgba(59, 130, 246, 0.2) !important;
    transform: translateX(5px);
}

.quiz-option input:checked + span {
    color: #60A5FA;
    font-weight: 600;
}

/* ===== CÓDIGO ===== */
pre {
    overflow-x: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
    background: #0a0e17;
    padding: 1rem;
    border-radius: 0.75rem;
    border-left: 4px solid #3b82f6;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    margin: 1rem 0;
}

/* ===== SCROLLBAR PERSONALIZADA ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #1e1e2f;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: #3b82f6;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #60A5FA;
}

/* ===== ANIMAÇÕES PERSONALIZADAS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse-border {
    0% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(59, 130, 246, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
    }
}

.animate-fade-up {
    animation: fadeInUp 0.8s ease forwards;
}

.animate-fade-left {
    animation: fadeInLeft 0.8s ease forwards;
}

.animate-fade-right {
    animation: fadeInRight 0.8s ease forwards;
}

.animate-scale {
    animation: scaleIn 0.6s ease forwards;
}

.pulse-button {
    animation: pulse-border 1.5s infinite;
}

/* ===== RESPONSIVIDADE EXTRA ===== */
@media (max-width: 768px) {
    .glass-card {
        backdrop-filter: blur(8px);
    }
    
    pre {
        font-size: 0.8rem;
        padding: 0.75rem;
    }
    
    .module-card.active {
        transform: scale(1);
    }
}

@media (max-width: 480px) {
    .glass-card {
        backdrop-filter: blur(4px);
    }
    
    .gradient-text {
        font-size: 1.5rem;
    }
}

/* ===== SMOOTH SCROLL OFFSET (para âncoras) ===== */
html {
    scroll-padding-top: 80px;
}