:root {
    --bs-primary: #6366f1;
    --bs-secondary: #8b5cf6;
    --bs-dark: #1e293b;
    --bs-light: #f8fafc;
    --bs-white: #ffffff;
}

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

body {
    font-family: 'Nunito Sans', sans-serif;
    color: var(--bs-dark);
    overflow-x: hidden;
}

h1, h2, h3, .h1, .h2, .h3 {
    font-weight: 700;
    font-family: 'Baloo 2', sans-serif;
}

#spinner {
    opacity: 0;
    visibility: hidden;
    transition: opacity .8s ease-out, visibility 0s linear .5s;
    z-index: 99999;
}

#spinner.show {
    transition: opacity .8s ease-out, visibility 0s linear .0s;
    visibility: visible;
    opacity: 1;
}

.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.navbar-brand {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--bs-primary), var(--bs-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar .nav-link {
    font-weight: 600;
    color: var(--bs-dark);
    padding: 10px 16px;
    transition: all 0.3s;
}

.navbar .nav-link:hover {
    color: var(--bs-primary);
    transform: translateY(-2px);
}

.hero-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-header::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 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    color: white;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    animation: fadeInUp 1s 0.2s both;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 2rem;
    animation: fadeInUp 1s 0.4s both;
}

.hero-feature-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 6px 14px;
    border-radius: 50px;
    color: white;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.hero-feature-item i {
    font-size: 1.2rem;
}

.btn-custom {
    padding: 14px 35px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-primary-custom {
    background: white;
    color: var(--bs-primary);
}

.btn-primary-custom:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn-outline-custom {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-outline-custom:hover {
    background: white;
    color: var(--bs-primary);
    transform: translateY(-3px);
}

@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);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
}

.about-section {
    padding: 100px 0;
    background: var(--bs-light);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--bs-primary), var(--bs-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    color: var(--bs-primary);
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.feature-box {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
    height: 100%;
}

.feature-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--bs-primary), var(--bs-secondary));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.pricing-section {
    padding: 100px 0;
    background: white;
}

.pricing-card {
    background: white;
    border-radius: 30px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--bs-primary), var(--bs-secondary));
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 50px rgba(99, 102, 241, 0.25);
}

.pricing-card.featured {
    border: 3px solid var(--bs-primary);
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--bs-primary);
}

.price span {
    font-size: 1.2rem;
    color: #64748b;
}

.faq-section {
    padding: 100px 0;
    background: var(--bs-light);
}

.faq-item {
    background: white;
    border-radius: 20px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.faq-item:hover {
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.15);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--bs-dark);
    transition: all 0.3s;
}

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

.faq-question i {
    font-size: 1.5rem;
    transition: transform 0.3s;
    color: var(--bs-primary);
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 30px;
    color: #64748b;
    line-height: 1.8;
}

.faq-answer.active {
    max-height: 500px;
    padding: 0 30px 25px 30px;
}

.feedback-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.form-control-custom {
    border-radius: 15px;
    border: 2px solid #e2e8f0;
    padding: 15px 20px;
    transition: all 0.3s;
}

.form-control-custom:focus {
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.feedback-card {
    background: white;
    border-radius: 30px;
    padding: 50px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.footer {
    background: var(--bs-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s;
}

.footer a:hover {
    color: var(--bs-primary);
}

.back-to-top {
    position: fixed;
    right: 30px;
    bottom: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--bs-primary), var(--bs-secondary));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
    box-shadow: 0 5px 20px rgba(99, 102, 241, 0.4);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.6);
}

.alert-custom {
    border-radius: 15px;
    border: none;
    padding: 20px;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-features {
        justify-content: center;
        gap: 10px;
        font-size: 12px;
    }

    .hero-feature-item {
        padding: 4px 12px;
    }

    .btn-custom {
        padding: 8px 14px;
    }

    .hero-content .feedback-buttons {
        text-align: center;
    }

    .navbar-brand {
        font-size: 28px;
    }

    .fs-6 {
        font-size: 14px !important;
    }
}