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

:root {
    --primary-color: #7faf2a;
    --primary-hover: #6a9623;
    --primary-light: rgba(127, 175, 42, 0.1);
    --text-color: #1a1a2e;
    --text-muted: #6b7280;
    --bg-color: #ffffff;
    --bg-secondary: #f8fafc;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-lg: 16px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

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

/* Header */
.header {
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-color);
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-weight: 700;
    font-size: 1.25rem;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg-secondary) 100%);
    padding: 80px 0;
}

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

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 32px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-color);
}

.feature i {
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

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

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

/* Sections */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 48px;
}

/* Offers Section */
.offers-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.offers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

/* Offer Card */
.offer-card {
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

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

.offer-logo {
    height: 48px;
    width: auto;
    object-fit: contain;
    margin-bottom: 16px;
}

.offer-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.offer-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
    flex-grow: 1;
}

.offer-detail {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
}

.offer-detail-label {
    color: var(--text-muted);
}

.offer-detail-value {
    font-weight: 600;
}

.offer-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-light);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.offer-cta {
    width: 100%;
    justify-content: center;
    margin-top: auto;
}

/* Loading */
.loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

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

/* Error */
.error-message {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.error-message i {
    font-size: 3rem;
    color: #ef4444;
    margin-bottom: 16px;
}

/* How it Works */
.how-section {
    padding: 80px 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.step {
    text-align: center;
    padding: 32px;
}

.step-number {
    width: 56px;
    height: 56px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 16px;
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.step p {
    color: var(--text-muted);
}

/* FAQ */
.faq-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

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

.faq-item {
    background: var(--bg-color);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    color: var(--text-color);
}

.faq-question i {
    transition: transform 0.3s;
}

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

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

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 24px 20px;
    color: var(--text-muted);
}

/* Footer */
.footer {
    background: var(--text-color);
    color: white;
    padding: 40px 0;
}

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

.footer-info p {
    margin-bottom: 4px;
}

.disclaimer {
    font-size: 0.875rem;
    opacity: 0.7;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.footer-links a:hover {
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .hero {
        padding: 48px 0;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-features {
        flex-direction: column;
        gap: 16px;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .offers-section,
    .how-section,
    .faq-section {
        padding: 48px 0;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 24px;
    }
}