:root {
    /* Color Palette */
    --primary: #f26c0d;
    --primary-hover: #d95f0a;
    --primary-glow: rgba(242, 108, 13, 0.3);

    --bg-dark: #0a0c10;
    --bg-card: #161b22;
    --text-main: #f0f6fc;
    --text-muted: #8b949e;
    --border: rgba(255, 255, 255, 0.1);

    /* Animation Speeds */
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

. glass {
    background: rgba(22, 27, 34, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
}

.btn-primary {
    background: var(--primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 10px 20px var(--primary-glow);
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 15px 30px var(--primary-glow);
}

/* Sections */
nav {
    height: 80px;
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-main);
}

.logo img {
    height: 40px;
    display: block;
}

footer .logo img {
    height: 35px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a:hover {
    color: var(--primary);
}

/* Hero */
.hero {
    padding-top: 160px;
    padding-bottom: 80px;
    background: radial-gradient(circle at top right, rgba(242, 108, 13, 0.1), transparent 40%),
        radial-gradient(circle at bottom left, rgba(242, 108, 13, 0.05), transparent 40%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.cta-strategic {
    background: rgba(242, 108, 13, 0.1);
    padding: 3rem;
    border-radius: 30px;
    border: 1px solid var(--primary);
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.list-2-col {
    list-style: none;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.list-item-flex {
    display: flex;
    gap: 0.75rem;
    font-size: 1.2rem;
    font-weight: 500;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.hero-content .subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.hero-content .filter-question {
    font-style: italic;
    color: var(--primary);
    margin-bottom: 2rem;
    font-weight: 600;
}

.hero-visual {
    position: relative;
}

.video-container {
    aspect-ratio: 16/9;
    border-radius: 20px;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.play-btn {
    width: 80px;
    height: 80px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    transition: var(--transition);
}

.play-btn:hover {
    transform: scale(1.1);
}

/* Cards & Grid */
.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.price-card {
    max-width: 450px;
    margin: 4rem auto;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-card) 0%, rgba(22, 27, 34, 0.8) 100%);
    border: 2px solid var(--primary);
}

.price-amount {
    font-size: 3rem;
    font-weight: 900;
    margin: 1.5rem 0;
}

/* Footer */
footer {
    padding: 4rem 0;
    background: #050608;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Responsive */
@media (max-width: 968px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 3rem;
    }

    .nav-links {
        display: none;
    }
}
/* Testimonial Slider */
.slider-container {
    position: relative;
    overflow: hidden;
    padding: 2rem 0;
}

.slider-wrapper {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 2rem;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: 2rem;
}

.slider-wrapper::-webkit-scrollbar {
    display: none;
}

.testimonial-slide {
    flex: 0 0 300px;
    scroll-snap-align: center;
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
}

.testimonial-slide:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.testimonial-slide img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.slider-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
    cursor: pointer;
    transition: var(--transition);
}

.slider-dot.active {
    background: var(--primary);
    width: 30px;
    border-radius: 10px;
}

@media (max-width: 768px) {
    .testimonial-slide {
        flex: 0 0 85%;
    }
}

/* Sobre a Professora */
.sobre-profe-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 5rem;
    align-items: center;
}

.sobre-profe-image {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.image-frame {
    position: relative;
    border-radius: 24px;
    padding: 4px;
    background: linear-gradient(135deg, var(--primary), rgba(242, 108, 13, 0.2), var(--primary));
    background-size: 200% 200%;
    animation: gradientShift 4s ease infinite;
    box-shadow: 0 20px 60px rgba(242, 108, 13, 0.25);
    width: 100%;
    max-width: 340px;
}

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

.image-frame img {
    width: 100%;
    border-radius: 21px;
    display: block;
    object-fit: cover;
    object-position: top center;
}

.credential-badges {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
    max-width: 340px;
}

.badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
}

.badge:hover {
    border-color: var(--primary);
    background: rgba(242, 108, 13, 0.08);
}

.badge .material-symbols-outlined {
    color: var(--primary);
    font-size: 1.3rem;
    flex-shrink: 0;
}

.sobre-profe-content h2 {
    background: linear-gradient(135deg, var(--text-main) 60%, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (max-width: 900px) {
    .sobre-profe-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .sobre-profe-image {
        align-items: center;
    }

    .image-frame,
    .credential-badges {
        max-width: 300px;
        margin: 0 auto;
    }

    .credential-badges {
        align-items: flex-start;
    }

    .sobre-profe-content h2 {
        font-size: 1.9rem !important;
    }
}