:root {
        --primary-color: #2c2c2c;
        --secondary-color: #1a1a1a;
        --accent-color: #ff6b35;
        --yellow-primary: #ffd700;
        --yellow-light: #fff9c7;
        --yellow-dark: #e6c200;
        --yellow-vibrant: #ffed4e;
        --text-light: #666666;
        --bg-light: #fffef7;
        --gradient-1: linear-gradient(135deg, #ffd700 0%, #ff8c00 100%);
        --gradient-2: linear-gradient(135deg, #ffed4e 0%, #ffa500 100%);
        --gradient-3: linear-gradient(135deg, #fff9c7 0%, #ffd700 100%);
        --shadow: 0 10px 30px rgba(255, 215, 0, 0.2);
        --shadow-dark: 0 10px 30px rgba(0, 0, 0, 0.1);
    }

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

    body {
        font-family: 'Poppins', sans-serif;
        line-height: 1.7;
        color: var(--primary-color);
        overflow-x: hidden;
    }

    /* Hero Section */
    .hero {
        background: var(--gradient-1);
        min-height: 100vh;
        display: flex;
        align-items: center;
        position: relative;
        overflow: hidden;
    }

    .hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.1)" points="0,1000 1000,0 1000,1000"/></svg>');
        background-size: cover;
    }

    .hero-content {
        position: relative;
        z-index: 2;
        color: white;
        text-align: center;
    }

    .hero h1 {
        font-size: 3.5rem;
        font-weight: 700;
        margin-bottom: 1.5rem;
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        animation: fadeInUp 1s ease-out;
    }

    .hero .lead {
        font-size: 1.3rem;
        margin-bottom: 2rem;
        opacity: 0.9;
        animation: fadeInUp 1s ease-out 0.2s both;
    }

    .video-container {
        position: relative;
        border-radius: 20px;
        overflow: hidden;
        box-shadow: var(--shadow);
        margin: 3rem 0;
        animation: fadeInUp 1s ease-out 0.4s both;
    }

    .btn-hero {
        background: var(--gradient-2);
        border: none;
        padding: 18px 40px;
        font-size: 1.2rem;
        font-weight: 600;
        border-radius: 50px;
        color: var(--primary-color);
        text-decoration: none;
        display: inline-flex;
        align-items: center;
        gap: 10px;
        transition: all 0.3s ease;
        box-shadow: var(--shadow);
        animation: fadeInUp 1s ease-out 0.6s both;
    }

    .btn-hero:hover {
        transform: translateY(-3px);
        box-shadow: 0 15px 35px rgba(255, 215, 0, 0.4);
        color: var(--primary-color);
        background: var(--yellow-vibrant);
    }

    /* Floating elements */
    .floating-element {
        position: absolute;
        animation: float 6s ease-in-out infinite;
    }

    .floating-element:nth-child(1) {
        top: 20%;
        left: 10%;
        animation-delay: 0s;
    }

    .floating-element:nth-child(2) {
        top: 60%;
        right: 15%;
        animation-delay: 2s;
    }

    .floating-element:nth-child(3) {
        bottom: 20%;
        left: 20%;
        animation-delay: 4s;
    }

    /* Checklist Section */
    .checklist-section {
        padding: 100px 0;
        background: var(--bg-light);
        position: relative;
    }

    .section-title {
        font-size: 2.5rem;
        font-weight: 700;
        text-align: center;
        margin-bottom: 4rem;
        position: relative;
        color: var(--primary-color);
    }

    .section-title::after {
        content: '';
        width: 80px;
        height: 4px;
        background: var(--gradient-1);
        position: absolute;
        bottom: -15px;
        left: 50%;
        transform: translateX(-50%);
        border-radius: 2px;
    }

    .checklist-item {
        background: white;
        padding: 25px;
        margin-bottom: 20px;
        border-radius: 15px;
        box-shadow: var(--shadow-dark);
        transition: all 0.3s ease;
        border-left: 5px solid var(--yellow-primary);
    }

    .checklist-item:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow);
        background: var(--yellow-light);
    }

    .checklist-item i {
        color: var(--yellow-primary);
        font-size: 1.5rem;
        margin-right: 15px;
    }

    /* Features Section */
    .features-section {
        padding: 100px 0;
        background: white;
    }

    .feature-card {
        background: var(--gradient-3);
        text-align: center;
        padding: 40px 20px;
        height: 100%;
        transition: all 0.3s ease;
        border-radius: 20px;
        position: relative;
        overflow: hidden;
    }

    .feature-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--gradient-2);
        opacity: 0;
        transition: all 0.3s ease;
        z-index: 1;
    }

    .feature-card:hover::before {
        opacity: 0.8;
    }

    .feature-card:hover {
        transform: translateY(-10px);
        box-shadow: var(--shadow);
    }

    .feature-card>* {
        position: relative;
        z-index: 2;
    }

    .feature-icon {
        font-size: 3rem;
        margin-bottom: 1.5rem;
        background: var(--gradient-1);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    /* Author Section */
    .author-section {
        padding: 100px 0;
        background: var(--yellow-light);
        position: relative;
    }

    .author-content {
        background: white;
        padding: 50px;
        border-radius: 25px;
        box-shadow: var(--shadow-dark);
        position: relative;
        border: 2px solid var(--yellow-primary);
    }

    .book-cover {
        position: relative;
        transform: perspective(1000px) rotateY(-15deg);
        transition: all 0.3s ease;
    }

    .book-cover:hover {
        transform: perspective(1000px) rotateY(0deg) scale(1.05);
    }

    .book-cover img {
        border-radius: 15px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    }

    /* Testimonials */
    .testimonials-section {
        padding: 100px 0;
        background: var(--secondary-color);
        color: white;
    }

    .testimonial-card {
        background: rgba(255, 215, 0, 0.1);
        backdrop-filter: blur(10px);
        padding: 40px 30px;
        border-radius: 20px;
        text-align: center;
        height: 100%;
        border: 1px solid rgba(255, 215, 0, 0.3);
        transition: all 0.3s ease;
    }

    .testimonial-card:hover {
        transform: translateY(-10px);
        background: rgba(255, 215, 0, 0.15);
        border-color: var(--yellow-primary);
    }

    .testimonial-text {
        font-size: 1.1rem;
        font-style: italic;
        margin-bottom: 20px;
        line-height: 1.8;
    }

    .testimonial-author {
        font-weight: 600;
        color: var(--yellow-primary);
    }

    /* Email Section */
    .email-section {
        padding: 80px 0;
        background: var(--gradient-1);
        color: var(--primary-color);
    }

    .email-form {
        background: rgba(255, 255, 255, 0.9);
        backdrop-filter: blur(10px);
        padding: 50px;
        border-radius: 25px;
        border: 2px solid var(--yellow-dark);
        box-shadow: var(--shadow);
    }

    .form-control {
        padding: 15px 20px;
        border: 2px solid var(--yellow-primary);
        border-radius: 50px;
        font-size: 1.1rem;
        margin-bottom: 20px;
        transition: all 0.3s ease;
    }

    .form-control:focus {
        border-color: var(--yellow-dark);
        box-shadow: 0 0 0 0.2rem rgba(255, 215, 0, 0.25);
    }

    .btn-email {
        background: var(--primary-color);
        color: var(--yellow-primary);
        padding: 15px 30px;
        border: none;
        border-radius: 50px;
        font-weight: 600;
        font-size: 1.1rem;
        transition: all 0.3s ease;
    }

    .btn-email:hover {
        background: var(--secondary-color);
        color: var(--yellow-primary);
        transform: translateY(-2px);
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    }

    /* CTA Section */
    .cta-section {
        padding: 100px 0;
        background: var(--secondary-color);
        color: white;
        text-align: center;
    }

    .cta-title {
        font-size: 2.8rem;
        font-weight: 700;
        margin-bottom: 2rem;
    }

    /* Animations */
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    @keyframes float {

        0%,
        100% {
            transform: translateY(0px);
        }

        50% {
            transform: translateY(-20px);
        }
    }

    /* Responsive */
    @media (max-width: 768px) {
        .hero {
            min-height: 100vh;
            padding: 60px 0 40px;
        }

        .hero h1 {
            font-size: 2.2rem;
            line-height: 1.2;
            margin-bottom: 1rem;
        }

        .hero .lead {
            font-size: 1rem;
            margin-bottom: 1.5rem;
            padding: 0 15px;
        }

        .video-container {
            margin: 2rem 0;
        }

        .btn-hero {
            padding: 15px 25px;
            font-size: 1rem;
            margin-top: 1rem;
        }

        .section-title {
            font-size: 1.8rem;
            margin-bottom: 2.5rem;
            padding: 0 15px;
        }

        .cta-title {
            font-size: 1.9rem;
            line-height: 1.3;
            margin-bottom: 1.5rem;
            padding: 0 15px;
        }

        .author-content {
            padding: 25px 20px;
            margin: 0 15px;
        }

        .email-form {
            padding: 25px 20px;
            margin: 0 15px;
        }

        .checklist-item {
            padding: 20px 15px;
            margin: 0 15px 15px;
            font-size: 0.95rem;
        }

        .checklist-item i {
            font-size: 1.2rem;
            margin-right: 10px;
        }

        .feature-card {
            padding: 30px 15px;
            margin-bottom: 20px;
        }

        .feature-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .testimonial-card {
            padding: 25px 20px;
            margin-bottom: 20px;
        }

        .testimonial-text {
            font-size: 1rem;
            margin-bottom: 15px;
        }

        .book-cover {
            margin-top: 30px;
            transform: none;
        }

        .book-cover:hover {
            transform: scale(1.02);
        }

        .floating-element {
            display: none;
        }

        .hero-content {
            padding: 0 15px;
        }

        .form-control {
            margin-bottom: 15px;
            font-size: 1rem;
            padding: 12px 18px;
        }

        .btn-email {
            padding: 12px 25px;
            font-size: 1rem;
            margin-top: 10px;
        }

        .checklist-section,
        .features-section,
        .author-section,
        .testimonials-section,
        .email-section,
        .cta-section {
            padding: 60px 0;
        }

        .hero {
            padding: 40px 0;
        }
    }

    @media (max-width: 576px) {
        .hero h1 {
            font-size: 1.9rem;
        }

        .section-title {
            font-size: 1.6rem;
        }

        .cta-title {
            font-size: 1.7rem;
        }

        .btn-hero {
            padding: 12px 20px;
            font-size: 0.95rem;
        }

        .checklist-item {
            padding: 15px 12px;
            font-size: 0.9rem;
        }

        .feature-card {
            padding: 25px 12px;
        }

        .testimonial-card {
            padding: 20px 15px;
        }

        .author-content {
            padding: 20px 15px;
        }

        .email-form {
            padding: 20px 15px;
        }

        .email-form h2 {
            font-size: 1.4rem;
            margin-bottom: 1rem;
        }

        .email-form p {
            font-size: 0.95rem;
            margin-bottom: 2rem;
        }
    }

    /* Landscape mobile orientation */
    @media (max-width: 768px) and (orientation: landscape) {
        .hero {
            min-height: 100vh;
            padding: 30px 0;
        }

        .hero h1 {
            font-size: 2rem;
            margin-bottom: 0.8rem;
        }

        .hero .lead {
            margin-bottom: 1rem;
        }

        .video-container {
            margin: 1.5rem 0;
        }
    }

    /* Tablet adjustments */
    @media (min-width: 769px) and (max-width: 1024px) {
        .hero h1 {
            font-size: 3rem;
        }

        .section-title {
            font-size: 2.2rem;
        }

        .cta-title {
            font-size: 2.4rem;
        }

        .author-content {
            padding: 40px 30px;
        }

        .email-form {
            padding: 40px 30px;
        }
    }

    /* Scroll animations */
    .animate-on-scroll {
        opacity: 0;
        transform: translateY(30px);
        transition: all 0.8s ease;
    }

    .animate-on-scroll.animated {
        opacity: 1;
        transform: translateY(0);
    }

    /* WhatsApp Floating Button */
    .whatsapp-float {
        position: fixed;
        bottom: 30px;
        right: 30px;
        z-index: 1000;
    }

    .whatsapp-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 60px;
        height: 60px;
        background: #25d366;
        border-radius: 50%;
        color: white;
        text-decoration: none;
        font-size: 28px;
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
        transition: all 0.3s ease;
        animation: pulse 2s infinite;
    }

    .whatsapp-btn:hover {
        background: #128c7e;
        color: white;
        transform: scale(1.1);
        box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
    }

    /* Popup Message */
    .whatsapp-popup {
        position: absolute;
        bottom: 75px;
        right: 0;
        background: white;
        padding: 0;
        border-radius: 12px;
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
        min-width: 220px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(10px);
        transition: all 0.3s ease;
        animation: popupShow 3s ease-in-out 2s;
    }

    .popup-content {
        padding: 15px 18px;
        position: relative;
    }

    .popup-content p {
        margin: 0;
        font-size: 14px;
        font-weight: 500;
        color: var(--primary-color);
        line-height: 1.4;
    }

    .popup-close {
        position: absolute;
        top: 8px;
        right: 12px;
        font-size: 18px;
        color: #999;
        cursor: pointer;
        line-height: 1;
        transition: color 0.2s ease;
    }

    .popup-close:hover {
        color: #666;
    }

    .popup-arrow {
        position: absolute;
        bottom: -8px;
        right: 25px;
        width: 0;
        height: 0;
        border-left: 8px solid transparent;
        border-right: 8px solid transparent;
        border-top: 8px solid white;
    }

    /* Animations */
    @keyframes pulse {
        0% {
            transform: scale(1);
            box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
        }

        50% {
            transform: scale(1.05);
            box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
        }

        100% {
            transform: scale(1);
            box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
        }
    }

    @keyframes popupShow {

        0%,
        85% {
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
        }

        90%,
        95% {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        100% {
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
        }
    }

    .whatsapp-popup.show {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    /* Mobile adjustments */
    @media (max-width: 768px) {
        .whatsapp-float {
            bottom: 20px;
            right: 20px;
        }

        .whatsapp-btn {
            width: 55px;
            height: 55px;
            font-size: 24px;
        }

        .whatsapp-popup {
            bottom: 70px;
            right: -10px;
            min-width: 200px;
        }

        .popup-content {
            padding: 12px 15px;
        }

        .popup-content p {
            font-size: 13px;
        }

        .popup-arrow {
            right: 20px;
        }
    }

    @media (max-width: 480px) {
        .whatsapp-popup {
            right: -20px;
            min-width: 180px;
        }

        .popup-arrow {
            right: 15px;
        }
    }

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

    body {
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;

    }

    .preloader {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(135deg, #ffd700 0%, #ff8c00 100%);
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        z-index: 9999;
        transition: all 0.8s ease-in-out;
    }

    .preloader.fade-out {
        opacity: 0;
        visibility: hidden;
    }

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

    .logo {
        font-size: 3rem;
        margin-bottom: 2rem;
        animation: pulse 2s ease-in-out infinite alternate;
    }

    .spinner-container {
        position: relative;
        margin: 2rem 0;
    }

    .custom-spinner {
        width: 80px;
        height: 80px;
        border: 4px solid rgba(255, 255, 255, 0.3);
        border-top: 4px solid #ffffff;
        border-radius: 50%;
        animation: spin 1s linear infinite;
        margin: 0 auto;
    }

    .loading-dots {
        display: flex;
        justify-content: center;
        align-items: center;
        margin: 1rem 0;
    }

    .dot {
        width: 12px;
        height: 12px;
        background-color: white;
        border-radius: 50%;
        margin: 0 4px;
        animation: bounce 1.4s ease-in-out infinite both;
    }

    .dot:nth-child(1) {
        animation-delay: -0.32s;
    }

    .dot:nth-child(2) {
        animation-delay: -0.16s;
    }

    .dot:nth-child(3) {
        animation-delay: 0s;
    }

    .loading-text {
        font-size: 1.2rem;
        font-weight: 300;
        letter-spacing: 2px;
        margin-top: 1rem;
        animation: fadeInOut 2s ease-in-out infinite;
    }

    .progress-container {
        width: 300px;
        height: 4px;
        background-color: rgba(255, 255, 255, 0.3);
        border-radius: 2px;
        margin-top: 2rem;
        overflow: hidden;
    }

    .progress-bar {
        height: 100%;
        background: linear-gradient(90deg, #ff6b35, #fff9c7, #f34201);
        background-size: 200% 100%;
        border-radius: 2px;
        width: 0%;
        animation: progressAnimation 3s ease-in-out, gradientMove 2s ease-in-out infinite;
    }

    .percentage {
        margin-top: 1rem;
        font-size: 0.9rem;
        opacity: 0.8;
    }

    .floating-icons {
        position: absolute;
        width: 100%;
        height: 100%;
        pointer-events: none;
    }

    .floating-icon {
        position: absolute;
        color: rgba(255, 255, 255, 0.1);
        font-size: 2rem;
        animation: float 6s ease-in-out infinite;
    }

    .floating-icon:nth-child(1) {
        top: 20%;
        left: 10%;
        animation-delay: 0s;
    }

    .floating-icon:nth-child(2) {
        top: 60%;
        right: 15%;
        animation-delay: 2s;
        font-size: 1.5rem;
    }

    .floating-icon:nth-child(3) {
        bottom: 30%;
        left: 20%;
        animation-delay: 4s;
        font-size: 2.5rem;
    }

    .floating-icon:nth-child(4) {
        top: 30%;
        right: 30%;
        animation-delay: 1s;
        font-size: 1.8rem;
    }

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

        100% {
            transform: rotate(360deg);
        }
    }

    @keyframes bounce {

        0%,
        80%,
        100% {
            transform: scale(0);
            opacity: 0.5;
        }

        40% {
            transform: scale(1);
            opacity: 1;
        }
    }

    @keyframes pulse {
        0% {
            transform: scale(1);
        }

        100% {
            transform: scale(1.1);
        }
    }

    @keyframes fadeInOut {

        0%,
        100% {
            opacity: 0.6;
        }

        50% {
            opacity: 1;
        }
    }

    @keyframes progressAnimation {
        0% {
            width: 0%;
        }

        100% {
            width: 100%;
        }
    }

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

        50% {
            background-position: 100% 50%;
        }

        100% {
            background-position: 0% 50%;
        }
    }

    @keyframes float {

        0%,
        100% {
            transform: translateY(0px) rotate(0deg);
            opacity: 0.1;
        }

        50% {
            transform: translateY(-20px) rotate(180deg);
            opacity: 0.3;
        }
    }

    @media (max-width: 768px) {
        .logo {
            font-size: 2rem;
        }

        .loading-text {
            font-size: 1rem;
        }

        .progress-container {
            width: 250px;
        }

        .custom-spinner {
            width: 60px;
            height: 60px;
        }
    }

    /* Conteúdo principal (oculto durante o preload) */
    .main-content {
        opacity: 0;
        transition: opacity 1s ease-in-out;
    }

    .main-content.show {
        opacity: 1;
    }

    .a-href{
      text-decoration: auto;
      color: var(--primary-color);
    }