:root {
    --brand-primary:     #1a1a1a;
    --brand-secondary:   #2d2d2d;
    --brand-accent:      #ff6600;
    --brand-bg:          #ffffff;
    --brand-text:        #333333;
    --brand-header-bg:   #ffffff;
    --brand-btn-bg:      #ff6600;
    --brand-btn-text:    #ffffff;
    --brand-btn-radius:  4px;
    --brand-head-font:   'Poppins', sans-serif;
    --brand-body-font:   'Inter', sans-serif;
    --brand-head-weight: 700;
    --brand-body-size:   16px;

    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 60px;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --shadow-sm: 0 2px 5px rgba(0,0,0,0.05);
    --shadow-md: 0 5px 15px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
}

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

body {
    font-family: var(--brand-body-font);
    font-size: var(--brand-body-size);
    color: var(--brand-text);
    background-color: var(--brand-bg);
    line-height: 1.6;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--brand-head-font);
    font-weight: var(--brand-head-weight);
    color: var(--brand-primary);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; margin-top: var(--spacing-xl); }
h3 { font-size: 1.5rem; }
p { margin-bottom: var(--spacing-md); }

a {
    color: var(--brand-accent);
    text-decoration: none;
    transition: color 0.2s;
}
a:hover { color: #e55a00; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--brand-btn-radius);
    font-family: var(--brand-head-font);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

.btn-primary, .btn-hero, .btn-register, .btn-sticky {
    background-color: var(--brand-btn-bg);
    color: var(--brand-btn-text);
}
.btn-primary:hover, .btn-hero:hover, .btn-register:hover, .btn-sticky:hover {
    background-color: #e55a00;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-login {
    background-color: transparent;
    color: var(--brand-primary);
    border: 2px solid var(--brand-secondary);
}
.btn-login:hover {
    background-color: #f0f0f0;
}

.btn-accent {
    background-color: var(--brand-accent);
    color: white;
    padding: 15px 35px;
    font-size: 1.1rem;
}
.btn-accent:hover {
    background-color: #e55a00;
    box-shadow: var(--shadow-lg);
}

/* Header */
.main-header {
    background-color: var(--brand-header-bg);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo a {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--brand-primary);
}
.logo-icon {
    font-size: 2rem;
    margin-right: 10px;
}
.logo-text span {
    color: var(--brand-accent);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--brand-primary);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}
.main-nav a {
    color: var(--brand-text);
    font-weight: 500;
}
.main-nav a:hover {
    color: var(--brand-accent);
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: white;
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.hero-content {
    flex: 1;
}
.hero-title {
    font-size: 3rem;
    color: white;
    margin-bottom: var(--spacing-md);
}
.hero-subtitle {
    font-size: 1.2rem;
    color: #ccc;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
}
.btn-hero {
    font-size: 1.2rem;
    padding: 16px 40px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}
.graphic-placeholder {
    font-size: 8rem;
    opacity: 0.7;
}

/* Sticky CTA */
.sticky-cta {
    position: fixed;
    bottom: 20px;
    left: 0;
    width: 100%;
    text-align: center;
    z-index: 999;
    opacity: 0;
    transform: translateY(100px);
    transition: all 0.5s ease;
}
.sticky-cta.visible {
    opacity: 1;
    transform: translateY(0);
}
.btn-sticky {
    padding: 15px 40px;
    font-size: 1.1rem;
    box-shadow: var(--shadow-lg);
}

/* Main Content */
.main-content {
    padding: var(--spacing-xl) 0;
}

.content-section {
    max-width: 900px;
    margin: 0 auto;
}

.cta-box, .info-box {
    background-color: #f9f9f9;
    border-left: 4px solid var(--brand-accent);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-md);
}
.cta-box p, .info-box h3 {
    margin-bottom: var(--spacing-md);
}

.info-box ul {
    list-style-position: inside;
    margin-bottom: var(--spacing-md);
}
.info-box li {
    margin-bottom: var(--spacing-xs);
}

.final-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid #eee;
}
.small-note {
    font-size: 0.9rem;
    color: #777;
    margin-top: var(--spacing-md);
}

/* Footer */
.main-footer {
    background-color: var(--brand-primary);
    color: #ccc;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-security, .footer-payments {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}
.footer-security h3, .footer-payments h3 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.security-logos, .payment-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
}
.logo-item {
    background: var(--brand-secondary);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    color: white;
    font-weight: 500;
}
.logo-item a {
    color: white;
}

.footer-links ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    list-style: none;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid #444;
}
.footer-links a {
    color: #aaa;
}
.footer-links a:hover {
    color: white;
}

.footer-copyright {
    text-align: center;
    font-size: 0.9rem;
    color: #888;
    line-height: 1.5;
}
.affiliate-note {
    margin-top: var(--spacing-sm);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    .hero-title { font-size: 2.5rem; }
    .mobile-menu-btn { display: block; }
    .main-nav ul {
        display: none;
    }
    .mobile-nav-active ul {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--brand-header-bg);
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0,0,0,.1);
        gap: 15px;
    }
    .header-actions {
        display: none;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.7rem; }
    .hero-title { font-size: 2rem; }
    .security-logos, .payment-logos, .footer-links ul {
        gap: var(--spacing-sm);
    }
    .logo-item {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
}