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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

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

ul {
    list-style: none;
}

/* ===================================
   Container & Layout
   =================================== */

.serfaff-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

@media (min-width: 768px) {
    .serfaff-container {
        padding: 0 40px;
    }
}

/* ===================================
   Header
   =================================== */

.serfaff-header {
    position: sticky;
    top: 0;
    background: linear-gradient(180deg, #2a2a2a 0%, #1a1a1a 100%);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    padding: 16px 0;
}

.serfaff-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.serfaff-logo {
    height: 45px;
    width: auto;
}

.serfaff-nav {
    display: none;
}

@media (min-width: 768px) {
    .serfaff-nav {
        display: block;
        flex: 1;
        margin-left: 40px;
    }
}

.serfaff-nav-list {
    display: flex;
    gap: 30px;
}

.serfaff-nav-link {
    color: #ffd966;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
}

.serfaff-nav-link:hover {
    color: #ffffff;
}

.serfaff-header-actions {
    display: none;
}

@media (min-width: 768px) {
    .serfaff-header-actions {
        display: block;
    }
}

.serfaff-mobile-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

@media (min-width: 768px) {
    .serfaff-mobile-toggle {
        display: none;
    }
}

.serfaff-hamburger {
    width: 25px;
    height: 3px;
    background-color: #ffd966;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.serfaff-hamburger::before,
.serfaff-hamburger::after {
    content: '';
    display: block;
    width: 25px;
    height: 3px;
    background-color: #ffd966;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.serfaff-hamburger::before {
    transform: translateY(-8px);
}

.serfaff-hamburger::after {
    transform: translateY(5px);
}

/* ===================================
   Buttons
   =================================== */

.serfaff-btn {
    display: inline-block;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    text-align: center;
    cursor: pointer;
}

.serfaff-btn-large {
    padding: 16px 40px;
    font-size: 17px;
}

.serfaff-btn-primary {
    background: linear-gradient(135deg, #f57120 0%, #e15a09 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(245, 113, 32, 0.3);
}

.serfaff-btn-primary:hover {
    background: linear-gradient(135deg, #e15a09 0%, #c74d08 100%);
    box-shadow: 0 6px 20px rgba(245, 113, 32, 0.4);
    transform: translateY(-2px);
}

.serfaff-btn-secondary {
    background: transparent;
    color: #ffffff;
    border: 2px solid #ffd966;
}

.serfaff-btn-secondary:hover {
    background: #ffd966;
    color: #1a1a1a;
}

.serfaff-btn-cta {
    background: linear-gradient(135deg, #ffd966 0%, #ffb300 100%);
    color: #1a1a1a;
    box-shadow: 0 4px 15px rgba(255, 217, 102, 0.4);
}

.serfaff-btn-cta:hover {
    background: linear-gradient(135deg, #ffb300 0%, #ff9500 100%);
    transform: translateY(-2px);
}

/* ===================================
   Hero Section
   =================================== */

.serfaff-hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d1b35 100%);
    color: #ffffff;
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}

.serfaff-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(245, 113, 32, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.serfaff-hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.serfaff-hero-title {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #ffffff;
}

@media (min-width: 768px) {
    .serfaff-hero-title {
        font-size: 56px;
    }
}

.serfaff-hero-subtitle {
    font-size: 18px;
    line-height: 1.6;
    color: #e0e0e0;
    margin-bottom: 35px;
    max-width: 650px;
}

@media (min-width: 768px) {
    .serfaff-hero-subtitle {
        font-size: 20px;
    }
}

.serfaff-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

/* ===================================
   Section Shared Styles
   =================================== */

.serfaff-section-header {
    margin-bottom: 50px;
}

.serfaff-section-header.serfaff-center {
    text-align: center;
}

.serfaff-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #f57120;
    margin-bottom: 12px;
}

.serfaff-section-title {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
    color: #1a1a1a;
    margin-bottom: 16px;
}

@media (min-width: 768px) {
    .serfaff-section-title {
        font-size: 40px;
    }
}

.serfaff-section-intro {
    font-size: 17px;
    line-height: 1.7;
    color: #4a4a4a;
    max-width: 750px;
    margin: 0 auto;
}

/* ===================================
   About Section
   =================================== */

.serfaff-about {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.serfaff-about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

@media (min-width: 768px) {
    .serfaff-about-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.serfaff-about-card {
    background: #ffffff;
    padding: 35px 25px;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.serfaff-about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.serfaff-about-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.serfaff-about-card-title {
    font-size: 22px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 12px;
}

.serfaff-about-card-text {
    font-size: 15px;
    line-height: 1.6;
    color: #555555;
}

/* ===================================
   Why Section
   =================================== */

.serfaff-why {
    padding: 80px 0;
    background-color: #ffffff;
}

.serfaff-why-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .serfaff-why-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

.serfaff-why-item {
    display: flex;
    gap: 20px;
}

.serfaff-why-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #f57120 0%, #e15a09 100%);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
}

.serfaff-why-content {
    flex: 1;
}

.serfaff-why-title {
    font-size: 20px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
}

.serfaff-why-text {
    font-size: 15px;
    line-height: 1.6;
    color: #555555;
}

/* ===================================
   Features Section
   =================================== */

.serfaff-features {
    padding: 80px 0;
    background: linear-gradient(135deg, #f9f9f9 0%, #efefef 100%);
}

.serfaff-features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
}

@media (min-width: 768px) {
    .serfaff-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .serfaff-features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.serfaff-feature-card {
    background: #ffffff;
    padding: 30px 25px;
    border-radius: 10px;
    border-left: 4px solid #f57120;
    transition: all 0.3s ease;
}

.serfaff-feature-card:hover {
    border-left-color: #ffd966;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.serfaff-feature-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.serfaff-feature-title {
    font-size: 20px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 10px;
}

.serfaff-feature-text {
    font-size: 15px;
    line-height: 1.6;
    color: #555555;
}

/* ===================================
   How To Section
   =================================== */

.serfaff-howto {
    padding: 80px 0;
    background-color: #ffffff;
}

.serfaff-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 35px;
    max-width: 900px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .serfaff-steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

.serfaff-step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.serfaff-step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ffd966 0%, #ffb300 100%);
    color: #1a1a1a;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(255, 217, 102, 0.3);
}

.serfaff-step-content {
    flex: 1;
}

.serfaff-step-title {
    font-size: 20px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
}

.serfaff-step-text {
    font-size: 15px;
    line-height: 1.6;
    color: #555555;
}

/* ===================================
   Mobile Section
   =================================== */

.serfaff-mobile {
    padding: 80px 0;
    background: linear-gradient(135deg, #2d1b35 0%, #1a1a1a 100%);
    color: #ffffff;
}

.serfaff-mobile .serfaff-label {
    color: #ffd966;
}

.serfaff-mobile .serfaff-section-title {
    color: #ffffff;
}

.serfaff-mobile-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px;
    align-items: center;
}

@media (min-width: 768px) {
    .serfaff-mobile-layout {
        grid-template-columns: 1fr 1fr;
    }
}

.serfaff-mobile-description {
    font-size: 16px;
    line-height: 1.7;
    color: #e0e0e0;
    margin-bottom: 25px;
}

.serfaff-mobile-features {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.serfaff-mobile-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
}

.serfaff-checkmark {
    color: #ffd966;
    font-weight: 700;
    font-size: 18px;
}

.serfaff-mobile-visual {
    display: flex;
    justify-content: center;
}

.serfaff-mobile-placeholder {
    width: 100%;
    max-width: 300px;
    aspect-ratio: 9 / 16;
    background: linear-gradient(135deg, #3a2a4a 0%, #2a1a3a 100%);
    border-radius: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    border: 3px solid #ffd966;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.serfaff-mobile-placeholder p {
    font-size: 80px;
    margin: 0;
}

.serfaff-mobile-placeholder span {
    font-size: 16px;
    color: #ffd966;
    font-weight: 600;
}

/* ===================================
   Banking Section
   =================================== */

.serfaff-banking {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.serfaff-banking-table-wrap {
    overflow-x: auto;
    margin-bottom: 30px;
}

.serfaff-banking-table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
}

.serfaff-banking-table thead {
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
    color: #ffd966;
}

.serfaff-banking-table th {
    padding: 18px 20px;
    text-align: left;
    font-weight: 600;
    font-size: 15px;
}

.serfaff-banking-table td {
    padding: 16px 20px;
    border-bottom: 1px solid #eeeeee;
    font-size: 15px;
}

.serfaff-banking-table tbody tr:last-child td {
    border-bottom: none;
}

.serfaff-banking-table tbody tr:hover {
    background-color: #f9f9f9;
}

.serfaff-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.serfaff-badge-yes {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.serfaff-badge-limited {
    background-color: #fff3e0;
    color: #e65100;
}

.serfaff-banking-note {
    background: #ffffff;
    padding: 20px 25px;
    border-radius: 8px;
    border-left: 4px solid #ffd966;
}

.serfaff-banking-note p {
    font-size: 15px;
    line-height: 1.6;
    color: #555555;
}

/* ===================================
   Trust Section
   =================================== */

.serfaff-trust {
    padding: 80px 0;
    background-color: #ffffff;
}

.serfaff-trust-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px;
    align-items: center;
}

@media (min-width: 768px) {
    .serfaff-trust-layout {
        grid-template-columns: 1fr 1fr;
    }
}

.serfaff-trust .serfaff-label {
    color: #f57120;
}

.serfaff-trust-text {
    font-size: 16px;
    line-height: 1.7;
    color: #555555;
    margin-bottom: 20px;
}

.serfaff-trust-points {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 30px;
}

.serfaff-trust-point {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    color: #1a1a1a;
}

.serfaff-trust-icon {
    font-size: 24px;
}

.serfaff-trust-box {
    background: linear-gradient(135deg, #2d1b35 0%, #1a1a1a 100%);
    color: #ffffff;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.serfaff-trust-box-title {
    font-size: 24px;
    font-weight: 700;
    color: #ffd966;
    margin-bottom: 16px;
}

.serfaff-trust-box-text {
    font-size: 16px;
    line-height: 1.7;
    color: #e0e0e0;
    margin-bottom: 20px;
}

.serfaff-trust-box-small {
    font-size: 14px;
    line-height: 1.6;
    color: #b0b0b0;
}

/* ===================================
   FAQ Section
   =================================== */

.serfaff-faq {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.serfaff-faq-list {
    max-width: 850px;
    margin: 0 auto;
}

.serfaff-faq-item {
    background: #ffffff;
    border-radius: 8px;
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

.serfaff-faq-question {
    width: 100%;
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    text-align: left;
    font-size: 17px;
    font-weight: 600;
    color: #1a1a1a;
    background: #ffffff;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.serfaff-faq-question:hover {
    background-color: #f9f9f9;
}

.serfaff-faq-icon {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 300;
    color: #f57120;
    transition: transform 0.3s ease;
}

.serfaff-faq-item.serfaff-active .serfaff-faq-icon {
    transform: rotate(45deg);
}

.serfaff-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.serfaff-faq-item.serfaff-active .serfaff-faq-answer {
    max-height: 500px;
    padding: 0 25px 20px;
}

.serfaff-faq-answer p {
    font-size: 15px;
    line-height: 1.7;
    color: #555555;
}

/* ===================================
   CTA Section
   =================================== */

.serfaff-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d1b35 100%);
    color: #ffffff;
    text-align: center;
}

.serfaff-cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.serfaff-cta-title {
    font-size: 36px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 20px;
}

@media (min-width: 768px) {
    .serfaff-cta-title {
        font-size: 44px;
    }
}

.serfaff-cta-text {
    font-size: 18px;
    line-height: 1.6;
    color: #e0e0e0;
    margin-bottom: 35px;
}

.serfaff-cta-disclaimer {
    font-size: 13px;
    color: #b0b0b0;
    margin-top: 20px;
}

/* ===================================
   Footer
   =================================== */

.serfaff-footer {
    background: #1a1a1a;
    color: #e0e0e0;
    padding: 50px 0 30px;
}

.serfaff-footer-top {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid #333333;
}

@media (min-width: 768px) {
    .serfaff-footer-top {
        grid-template-columns: 1fr 1fr;
    }
}

.serfaff-footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 15px;
}

.serfaff-footer-tagline {
    font-size: 14px;
    color: #b0b0b0;
}

.serfaff-footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.serfaff-footer-heading {
    font-size: 16px;
    font-weight: 600;
    color: #ffd966;
    margin-bottom: 16px;
}

.serfaff-footer-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.serfaff-footer-link {
    font-size: 14px;
    color: #b0b0b0;
    transition: color 0.3s ease;
}

.serfaff-footer-link:hover {
    color: #ffd966;
}

.serfaff-footer-bottom {
    text-align: center;
}

.serfaff-footer-legal {
    font-size: 13px;
    line-height: 1.7;
    color: #888888;
}

/* ===================================
   Utility Classes
   =================================== */

.serfaff-center {
    text-align: center;
}

/* ===================================
   Responsive Adjustments
   =================================== */

@media (max-width: 767px) {
    .serfaff-hero {
        padding: 60px 0 70px;
    }
    
    .serfaff-about,
    .serfaff-why,
    .serfaff-features,
    .serfaff-howto,
    .serfaff-mobile,
    .serfaff-banking,
    .serfaff-trust,
    .serfaff-faq,
    .serfaff-cta {
        padding: 60px 0;
    }
    
    .serfaff-section-header {
        margin-bottom: 35px;
    }
}
.serfaff-mobile-img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.serfaff-footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.serfaff-footer-column {
    display: flex;
    flex-direction: column;
}

.serfaff-footer-heading {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #fff;
}

.serfaff-footer-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.serfaff-footer-link {
    display: block;
    font-size: 14px;
    color: #aaa;
    text-decoration: none;
    margin-bottom: 8px;
    transition: 0.2s ease;
}

.serfaff-footer-link:hover {
    color: #fff;
}

@media (max-width: 992px) {
    .serfaff-footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 600px) {
    .serfaff-footer-links {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.serfaff-footer {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 40px;
}
.serfaff-footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

@media (max-width: 900px) {
    .serfaff-footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .serfaff-footer-links {
        grid-template-columns: 1fr;
    }
}
.serfaff-footer {
    background: #1a1a1a;
    color: #e0e0e0;
    padding: 50px 0 30px;
}

.serfaff-footer-top {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 60px;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid #333;
}

.serfaff-footer-brand {
    max-width: 280px;
}

.serfaff-footer-logo {
    height: 40px;
    margin-bottom: 15px;
}

.serfaff-footer-tagline {
    font-size: 14px;
    color: #b0b0b0;
}

.serfaff-footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.serfaff-footer-heading {
    font-size: 16px;
    color: #ffd966;
    margin-bottom: 15px;
}

.serfaff-footer-link {
    display: block;
    font-size: 14px;
    color: #b0b0b0;
    margin-bottom: 10px;
}

.serfaff-footer-link:hover {
    color: #fff;
}

.serfaff-footer-bottom {
    text-align: center;
}

.serfaff-footer-legal {
    font-size: 13px;
    color: #888;
}