:root {
    --primary-white: #ffffff;
    --secondary-white: #fbfbfd;
    --tertiary-white: #f5f5f7;
    --primary-black: #000000;
    --secondary-black: #1d1d1f;
    --text-dark: #000000;
    --text-medium: #6e6e73;
    --text-light: #86868b;
    --border-light: #d2d2d7;
    --accent-black: #000000;
    --hover-gray: #f5f5f7;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", "Helvetica", "Arial", sans-serif;
    background: var(--primary-white);
    color: var(--text-dark);
    min-height: 100vh;
    line-height: 1.47059;
    font-weight: 400;
    letter-spacing: -0.022em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.005em;
    line-height: 1.10722;
}

.navbar {
    background: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding: 0.75rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

    .navbar .container {
        max-width: 980px;
    }

.navbar-brand {
    font-size: 1.2rem !important;
    font-weight: 600;
    color: var(--text-dark) !important;
    letter-spacing: -0.01em;
}

.nav-link {
    color: var(--text-medium) !important;
    font-size: 0.85rem;
    font-weight: 400;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s ease;
}

    .nav-link:hover {
        color: var(--text-dark) !important;
    }

.btn-primary-custom {
    background: var(--accent-black);
    border: none;
    color: white;
    font-size: 0.95rem;
    font-weight: 400;
    padding: 0.65rem 1.2rem;
    border-radius: 980px;
    transition: all 0.3s ease;
    transform: translateY(0);
}

    .btn-primary-custom:hover {
        opacity: 0.9;
        color: black;
        border: 1px solid black;
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }

    .btn-primary-custom:active {
        transform: translateY(0);
    }

.btn-neon {
    background: transparent;
    border: 1px solid var(--text-medium);
    color: var(--text-dark) !important;
    font-size: 0.85rem;
    font-weight: 400;
    padding: 0.5rem 1rem;
    border-radius: 980px;
    transition: all 0.3s ease;
}

    .btn-neon:hover {
        border-color: var(--text-dark);
    }

main {
    padding-top: 48px;
}

.hero-section {
    min-height: calc(100vh - 48px);
    display: flex;
    align-items: center;
    padding: 4rem 0 6rem;
    background: var(--primary-white);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    color: #ff3b30;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 600;
    line-height: 1.04;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.hero-subtitle {
    font-size: 1.4rem;
    line-height: 1.33341;
    font-weight: 400;
    letter-spacing: 0.009em;
    color: var(--text-medium);
    margin-bottom: 1.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-visual {
    margin-top: 3rem;
}

.stats-section {
    padding: 4rem 0;
    background: var(--tertiary-white);
}

.stat-item {
    text-align: center;
    padding: 2rem 1rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 600;
    color: var(--text-dark);
    display: block;
    margin-bottom: 0.25rem;
}

.stat-label {
    color: var(--text-medium);
    font-size: 0.9rem;
}

.features-section {
    padding: 6rem 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 0.5rem;
    text-align: center;
    color: var(--text-dark);
}

.section-subtitle {
    color: var(--text-medium);
    text-align: center;
    max-width: 680px;
    margin: 0 auto 4rem;
    font-size: 1.25rem;
    line-height: 1.4;
}

.feature-card {
    background: var(--primary-white);
    padding: 2.5rem 2rem;
    height: 100%;
    text-align: center;
    border-radius: 20px;
    transition: all 0.3s ease;
}

    .feature-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    }

.feature-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    font-weight: 600;
}

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

.cta-section {
    padding: 6rem 0;
    text-align: center;
    background: var(--tertiary-white);
}

.pricing-section {
    padding: 6rem 0;
    background: var(--secondary-white);
}

.pricing-card {
    background: var(--primary-white);
    border-radius: 20px;
    padding: 3rem 2rem;
    height: 100%;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

    .pricing-card.popular {
        border-color: var(--text-dark);
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    }

    .pricing-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    }

.pricing-tier {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.pricing-description {
    color: var(--text-medium);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.pricing-price {
    font-size: 2.25rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
    letter-spacing: -0.02em;
}

    .pricing-price span {
        font-size: 0.95rem;
        font-weight: 400;
        color: var(--text-medium);
    }

.pricing-period {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
}

.pricing-member-count {
    color: #ff3b30;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
    text-align: left;
}

    .pricing-features li {
        padding: 0.6rem 0;
        border-bottom: 1px solid var(--border-light);
        font-size: 0.9rem;
        color: var(--text-medium);
    }

        .pricing-features li:last-child {
            border-bottom: none;
        }

.btn-pricing {
    width: 100%;
    padding: 1rem;
    font-size: 0.95rem;
}

.faq-section {
    padding: 6rem 0;
    background: var(--primary-white);
}

.faq-item {
    background: var(--tertiary-white);
    border-radius: 12px;
    margin-bottom: 0.75rem;
    overflow: hidden;
}

.faq-question {
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 500;
    font-size: 1rem;
}

    .faq-question::after {
        content: '+';
        font-size: 1.5rem;
        font-weight: 300;
        color: var(--text-medium);
        transition: transform 0.3s ease;
    }

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 1.5rem;
    color: var(--text-medium);
    line-height: 1.6;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding-bottom: 1.25rem;
}

.contact-section {
    padding: 6rem 0;
}

.contact-form {
    background: var(--primary-white);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 3rem;
    max-width: 600px;
    margin: 0 auto;
}

.form-control-custom {
    background: var(--tertiary-white);
    border: 1px solid var(--border-light);
    color: var(--text-dark);
    padding: 0.85rem 1rem;
    border-radius: 10px;
    font-size: 1rem;
}

    .form-control-custom:focus {
        background: var(--primary-white);
        border-color: var(--text-dark);
        box-shadow: none;
        outline: none;
    }

    .form-control-custom::placeholder {
        color: var(--text-light);
    }

.form-label-custom {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.order-confirmation {
    padding: 6rem 0;
    text-align: center;
    min-height: calc(100vh - 48px);
    display: flex;
    align-items: center;
}

.confirmation-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    margin: 0 auto 2rem;
}

.confirmation-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.confirmation-text {
    color: var(--text-medium);
    font-size: 1.15rem;
    margin-bottom: 2rem;
}

.order-details {
    background: var(--tertiary-white);
    border-radius: 16px;
    padding: 2rem;
    max-width: 450px;
    margin: 0 auto 2rem;
    text-align: left;
}

    .order-details h5 {
        color: var(--text-dark);
        margin-bottom: 1rem;
        font-weight: 600;
    }

.order-detail-row {
    display: flex;
    justify-content: space-between;
    padding: 0.6rem 0;
    font-size: 0.95rem;
}

    .order-detail-row span:first-child {
        color: var(--text-medium);
    }

footer {
    background: var(--tertiary-white);
    padding: 3rem 0 2rem;
    margin-top: 0;
    font-size: 0.75rem;
}

    footer h5 {
        font-size: 0.85rem;
        margin-bottom: 0.75rem;
        color: var(--text-dark);
        font-weight: 600;
    }

    footer p {
        color: var(--text-medium);
        font-size: 0.75rem;
        line-height: 1.5;
    }

    footer a {
        color: var(--text-medium);
        text-decoration: none;
        transition: color 0.3s ease;
    }

        footer a:hover {
            color: var(--text-dark);
        }

.footer-bottom {
    border-top: 1px solid var(--border-light);
    margin-top: 1.5rem;
    padding-top: 1rem;
    color: var(--text-light);
    font-size: 0.7rem;
}

.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: var(--text-dark);
    animation: spin 0.8s linear infinite;
    margin-right: 0.5rem;
    vertical-align: middle;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.alert-custom {
    background: var(--tertiary-white);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-error {
    color: #ff3b30;
}

.alert-success {
    color: #34c759;
}

.modal-content {
    background: var(--primary-white);
    border: 1px solid var(--border-light);
    border-radius: 20px;
}

.modal-header {
    border-bottom: 1px solid var(--border-light);
    padding: 1.5rem;
}

.modal-title {
    font-weight: 600;
    font-size: 1.25rem;
}

.modal-body {
    padding: 1.5rem;
}

.container {
    max-width: 980px;
}

@media (max-width: 768px) {
    .hero-section {
        padding: 2rem 0 4rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.15rem;
    }

    .pricing-card.popular {
        transform: none;
    }

    .stat-number {
        font-size: 2rem;
    }

    .pricing-card {
        padding: 2rem 1.5rem;
    }

    .pricing-price {
        font-size: 2.5rem;
    }
}