:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --bg-color: #0f172a;
    --surface-color: rgba(30, 41, 59, 0.7);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

html, body {
    overflow-x: hidden;
    width: 100%;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Animated Background Gradients */
.bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.shape {
    position: absolute;
    filter: blur(80px);
    opacity: 0.5;
    border-radius: 50%;
    animation: float 10s infinite ease-in-out alternate;
}

.shape-1 {
    top: -10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: var(--primary);
    animation-delay: 0s;
}

.shape-2 {
    bottom: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: var(--secondary);
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(30px, 50px) scale(1.1); }
}

/* Navbar */
nav {
    padding: 24px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
    background: rgba(15, 23, 42, 0.5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 10;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
}

.logo i {
    color: var(--primary);
    font-size: 1.8rem;
}

/* Hero Section */
.hero {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 999px;
    background: rgba(99, 102, 241, 0.1);
    color: #818cf8;
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 24px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    backdrop-filter: blur(4px);
}

h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h1 span {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

p.subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.6;
    max-width: 600px;
    margin-inline: auto;
}

/* Buttons */
.actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
    background: linear-gradient(135deg, #7174f2, var(--primary));
}

.btn-advanced {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}

.btn-advanced:hover {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
}

.btn-outline {
    background: var(--surface-color);
    color: white;
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 60px auto 40px;
    padding: 0 20px;
    z-index: 1;
}

.feature-card {
    background: var(--surface-color);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 24px;
    text-align: left;
    backdrop-filter: blur(12px);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 12px 30px -10px rgba(99, 102, 241, 0.4);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Syllabus / Grade Curricular */
.syllabus {
    max-width: 1000px;
    margin: 60px auto;
    padding: 0 20px;
    z-index: 1;
}

.syllabus-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.syllabus-item {
    background: var(--surface-color);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 24px;
    backdrop-filter: blur(12px);
    transition: transform 0.3s ease;
}

.syllabus-item:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.3);
}

.module-number {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--secondary);
    font-weight: 700;
    margin-bottom: 8px;
}

.syllabus-item h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.syllabus-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Instructor Section */
.instructor {
    max-width: 900px;
    margin: 80px auto;
    padding: 0 20px;
    z-index: 1;
}

.instructor-container {
    background: linear-gradient(145deg, var(--surface-color), rgba(15, 23, 42, 0.9));
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    padding: 40px;
    display: flex;
    align-items: center;
    gap: 40px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.instructor-image {
    width: 150px;
    height: 150px;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
    border: 4px solid var(--bg-color);
    box-shadow: 0 0 0 2px var(--primary);
    overflow: hidden; /* Garante que a foto não vaze o círculo */
}

.instructor-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.instructor-content h2 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--text-main);
}

.instructor-content p {
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 15px;
    font-size: 1.05rem;
}

@media (max-width: 768px) {
    .instructor-container {
        flex-direction: column;
        text-align: center;
        padding: 30px 20px;
    }
}

.landing-footer {
    text-align: center;
    padding: 20px;
    margin-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.landing-footer a {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-decoration: none;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 2.2rem;
    margin-bottom: 12px;
    color: var(--text-main);
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Testimonials Section */
.testimonials {
    max-width: 1000px;
    margin: 60px auto;
    padding: 0 20px;
    z-index: 1;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: var(--surface-color);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 30px;
    backdrop-filter: blur(12px);
}

.stars {
    color: #fbbf24;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.testimonial-text {
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 20px;
    font-style: italic;
    color: var(--text-main);
}

.student-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.student-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.student-info strong {
    display: block;
    color: var(--text-main);
}

.student-info span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* FAQ Section */
.faq {
    max-width: 800px;
    margin: 60px auto 80px;
    padding: 0 20px;
    z-index: 1;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    background: var(--surface-color);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 24px;
    backdrop-filter: blur(12px);
}

.faq-question {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.faq-question i {
    color: var(--primary);
}

.faq-answer {
    color: var(--text-muted);
    line-height: 1.6;
    margin-left: 28px;
}

/* Form Styles */
.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--surface-color);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 20px 30px;
    backdrop-filter: blur(12px);
}

.custom-form .form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.custom-form .form-group {
    margin-bottom: 15px;
}

.custom-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-main);
    font-size: 0.95rem;
}

.custom-form input,
.custom-form textarea {
    width: 100%;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(15, 23, 42, 0.5);
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.custom-form input:hover,
.custom-form textarea:hover {
    background: rgba(15, 23, 42, 0.7);
    border-color: rgba(255, 255, 255, 0.2);
}

.custom-form input:focus,
.custom-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
    background: rgba(15, 23, 42, 0.9);
}

.custom-form input::placeholder,
.custom-form textarea::placeholder {
    color: var(--text-muted);
}

.w-100 {
    width: 100%;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    p.subtitle { font-size: 1rem; padding: 0 10px; }
    nav { padding: 15px 20px; }
    .logo { font-size: 1.2rem; }
    .actions { flex-direction: column; width: 100%; padding: 0; gap: 15px; }
    .btn { width: 100%; justify-content: center; font-size: 1rem; padding: 14px 20px; }
    .features { grid-template-columns: 1fr; margin-top: 20px; padding-bottom: 40px; }
    .hero { padding: 20px 15px; }
    .custom-form .form-row {
        grid-template-columns: 1fr;
        gap: 0px;
    }
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--surface-color);
    color: var(--text-main);
    padding: 16px 24px;
    border-radius: 8px;
    border-left: 4px solid #10b981;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 9999;
    backdrop-filter: blur(16px);
    transform: translateX(150%);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.toast.show {
    transform: translateX(0);
}

.toast i {
    font-size: 1.25rem;
    color: #10b981;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: #1e293b;
    border-radius: 16px;
    padding: 30px;
    width: 90%;
    max-width: 500px;
    position: relative;
    transform: translateY(-20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s;
}

.close-modal:hover {
    color: var(--secondary);
}

/* Aviso Banner */
.aviso-banner {
    background: linear-gradient(90deg, var(--primary-dark), var(--secondary));
    color: white;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    font-weight: 500;
    font-size: 0.95rem;
    z-index: 20;
    position: relative;
}

.btn-aviso {
    background: rgba(0,0,0,0.3);
    color: white;
    padding: 4px 12px;
    border-radius: 99px;
    text-decoration: none;
    font-size: 0.85rem;
    transition: background 0.3s;
}

.btn-aviso:hover {
    background: rgba(0,0,0,0.5);
}

@media (max-width: 768px) {
    .toast {
        bottom: 20px;
        right: 20px;
        left: 20px;
        justify-content: center;
    }
    .aviso-banner {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
}