/* ============================================
   MulaStar - Make Money Online
   Design System
   ============================================ */

:root {
    /* Primary Colors */
    --primary: #008CFF;
    --primary-hover: #0077DD;
    --primary-light: rgba(0, 140, 255, 0.1);

    /* Text Colors */
    --text-dark: #2C2C32;
    --text-body: #4A4A52;
    --text-muted: #6B6B73;

    /* Background */
    --bg-white: #ffffff;
    --bg-light-blue: #E8F4FD;
    --bg-cream: #FFF8E7;
    --gradient-hero: linear-gradient(135deg, #E0F2F7 0%, #FFF8E1 100%);

    /* Borders & Shadows */
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.1);

    /* Spacing */
    --container-width: 1140px;
    --section-padding: 80px;
    --header-height: 72px;

    /* Typography */
    --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-body);
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-family: var(--font-main);
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 140, 255, 0.35);
}

.btn-outline {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary-light);
    border-color: var(--primary-hover);
    color: var(--primary-hover);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

/* ============================================
   Header & Navigation
   ============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    position: relative;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-dark);
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 1px;
}

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

.hero {
    min-height: calc(100vh - var(--header-height));
    margin-top: var(--header-height);
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    padding: 60px 0;
}

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

.hero-title {
    font-size: clamp(36px, 5vw, 52px);
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.hero-description {
    font-size: 18px;
    color: var(--text-body);
    max-width: 680px;
    margin: 0 auto 12px;
}

.hero-subtext {
    font-size: 18px;
    color: var(--text-body);
    margin-bottom: 36px;
}

.hero-subtext .highlight {
    color: var(--primary);
    font-weight: 700;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

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

.section {
    padding: var(--section-padding) 0;
}

.section:nth-child(odd) {
    background: var(--bg-white);
}

.section:nth-child(even) {
    background: #FAFBFC;
}

.section-title {
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 800;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-body);
    text-align: center;
    max-width: 700px;
    margin: 0 auto 48px;
}

.section-cta {
    text-align: center;
    margin-top: 40px;
}

/* ============================================
   How MulaStar Works
   ============================================ */

.how-works-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 48px;
    font-size: 17px;
}

.earning-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.earning-card {
    background: white;
    padding: 28px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease;
}

.earning-card:hover {
    box-shadow: var(--shadow-md);
}

.card-icon {
    font-size: 32px;
    display: block;
    margin-bottom: 16px;
}

.earning-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.earning-card p {
    font-size: 15px;
    line-height: 1.65;
    color: var(--text-body);
}

/* Nigeria Block - How it Works in Nigeria */
.nigeria-block {
    margin-top: 56px;
    padding-top: 48px;
    border-top: 2px solid var(--primary-light);
}

.nigeria-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 8px;
}

.nigeria-subtitle {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    text-align: center;
    margin-bottom: 20px;
}

.nigeria-intro {
    max-width: 720px;
    margin: 0 auto 32px;
    font-size: 16px;
    line-height: 1.65;
    text-align: center;
}

.nigeria-methods {
    display: grid;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto 24px;
}

.nigeria-method {
    background: white;
    padding: 24px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.nigeria-method h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.nigeria-method p {
    font-size: 15px;
    line-height: 1.65;
    margin-bottom: 10px;
}

.nigeria-method ul {
    padding-left: 24px;
    margin: 10px 0;
}

.nigeria-method li {
    list-style: disc;
    margin-bottom: 6px;
    font-size: 15px;
}

.nigeria-footer {
    max-width: 720px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.65;
    text-align: center;
    font-weight: 500;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.feature-card {
    background: white;
    padding: 32px 24px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-percent {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 12px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ============================================
   Steps Section
   ============================================ */

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.step-card {
    background: white;
    padding: 32px 24px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--primary);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    font-size: 20px;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 16px;
}

.step-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.step-card p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ============================================
   Register Section
   ============================================ */

.register-content {
    max-width: 720px;
    margin: 0 auto 32px;
}

.register-step {
    margin-bottom: 32px;
}

.register-step h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.register-step p,
.register-step ul {
    margin-bottom: 12px;
    font-size: 15px;
}

.register-step ul {
    padding-left: 24px;
}

.register-step li {
    list-style: disc;
    margin-bottom: 8px;
}

.register-link {
    display: inline-block;
    color: var(--primary);
    font-weight: 600;
    margin: 12px 0;
    word-break: break-all;
}

.register-link:hover {
    text-decoration: underline;
}

.warning {
    padding: 12px 16px;
    background: #FFF3CD;
    border-left: 4px solid #FFC107;
    border-radius: var(--border-radius-sm);
}

.tips-box {
    background: var(--primary-light);
    padding: 24px;
    border-radius: var(--border-radius);
    margin-bottom: 24px;
}

.tips-box h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.tips-box ul {
    padding-left: 24px;
}

.tips-box li {
    list-style: disc;
    margin-bottom: 6px;
}

.register-outro {
    text-align: center;
    margin-bottom: 24px;
    font-size: 16px;
}

/* ============================================
   Earning Methods
   ============================================ */

.methods-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px 32px;
}

.methods-list li {
    font-size: 17px;
    font-weight: 500;
    color: var(--text-dark);
    padding: 12px 20px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

/* ============================================
   Login Section
   ============================================ */

.login-steps {
    max-width: 600px;
    margin: 0 auto 32px;
}

.login-step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}

.login-step:last-child {
    border-bottom: none;
}

.check {
    font-size: 24px;
    flex-shrink: 0;
}

.login-step h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.login-step p {
    font-size: 15px;
}

.login-step a {
    color: var(--primary);
    font-weight: 500;
}

/* ============================================
   App Section
   ============================================ */

.subsection-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 24px;
}

.app-intro {
    max-width: 720px;
    margin: 0 auto 20px;
    font-size: 16px;
    line-height: 1.65;
}

.app-guide {
    max-width: 720px;
    margin: 0 auto 32px;
}

.app-step-block {
    margin-bottom: 28px;
}

.app-step-block h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.app-step-block p {
    margin-bottom: 12px;
    font-size: 15px;
}

.app-step-block ul {
    padding-left: 24px;
    margin-bottom: 12px;
}

.app-step-block li {
    list-style: disc;
    margin-bottom: 8px;
    font-size: 15px;
}

.app-step-block a {
    color: var(--primary);
    font-weight: 500;
}

.app-step-block a:hover {
    text-decoration: underline;
}

.app-note {
    padding: 12px 16px;
    background: #FFF3CD;
    border-left: 4px solid #FFC107;
    border-radius: var(--border-radius-sm);
    margin-top: 12px;
}

.app-activities {
    background: white;
    padding: 28px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
}

.app-activities h4,
.app-tips h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.app-activities p,
.app-tips p {
    margin-bottom: 12px;
}

.activities-list {
    padding-left: 24px;
    margin: 12px 0;
}

.activities-list li {
    list-style: none;
    margin-bottom: 8px;
    padding-left: 0;
}

.app-tips {
    background: var(--primary-light);
    padding: 24px;
    border-radius: var(--border-radius);
    margin-bottom: 24px;
}

.app-tips ul {
    padding-left: 24px;
}

.app-tips li {
    list-style: none;
    margin-bottom: 8px;
    padding-left: 0;
}

.app-cta-text {
    text-align: center;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 24px;
}

/* ============================================
   Reviews Section
   ============================================ */

.reviews-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 40px;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.review-card {
    background: white;
    padding: 28px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.review-avatar {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-bottom: 16px;
}

.review-text {
    font-size: 15px;
    font-style: italic;
    margin-bottom: 12px;
    line-height: 1.6;
}

.review-author {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

/* ============================================
   Legit Section
   ============================================ */

.legit-content {
    max-width: 760px;
    margin: 0 auto 40px;
}

.legit-content p {
    margin-bottom: 16px;
    font-size: 16px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
}

.stat-card {
    background: white;
    padding: 32px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-value {
    display: block;
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
}

/* ============================================
   Activation Fees Section
   ============================================ */

.fees-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
}

.fee-card {
    background: white;
    padding: 20px 24px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.fee-card-others {
    border: 2px solid var(--primary);
}

.fee-country {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
}

.fee-amount {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}

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

.faq-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 40px;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    padding: 28px;
    margin-bottom: 16px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.faq-item h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.faq-item p {
    font-size: 15px;
    margin-bottom: 12px;
    line-height: 1.65;
}

.faq-link {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
}

.faq-link:hover {
    text-decoration: underline;
}

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

.footer {
    background: var(--text-dark);
    color: white;
    padding: 48px 0;
    text-align: center;
}

.footer-logo {
    font-size: 28px;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
}

.footer-tagline {
    max-width: 560px;
    margin: 0 auto 24px;
    font-size: 15px;
    opacity: 0.9;
}

.footer-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.footer .btn-outline {
    border-color: white;
    color: white;
}

.footer .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 992px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: white;
        padding: 24px;
        box-shadow: var(--shadow-md);
        gap: 16px;
    }

    .header.active .nav-menu {
        display: flex;
    }

    .nav-links {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .nav-cta {
        margin-top: 8px;
        justify-content: center;
    }

    .nav-toggle {
        display: flex;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 48px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }

    .earning-cards {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps-grid {
        grid-template-columns: 1fr;
    }

    .footer-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .methods-list {
        flex-direction: column;
    }
}