/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #CFE9C8;
    --primary-dark: #B8D9B0;
    --primary-light: #E8F5E5;
    --white: #FFFFFF;
    --black: #000000;
    --gray-100: #F8F9FA;
    --gray-200: #E9ECEF;
    --gray-300: #DEE2E6;
    --gray-400: #CED4DA;
    --gray-500: #ADB5BD;
    --gray-600: #6C757D;
    --gray-700: #495057;
    --gray-800: #343A40;
    --gray-900: #212529;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    color: var(--black);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.025em;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--black);
    margin: 3px 0;
    transition: var(--transition);
    border-radius: 2px;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--white) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    color: var(--black);
    margin-bottom: 1.5rem;
    letter-spacing: -0.025em;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    text-align: center;
    transform: rotate(3deg);
    transition: var(--transition);
}

.hero-card:hover {
    transform: rotate(0deg) scale(1.05);
}

.card-content {
    max-width: 250px;
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.card-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.5rem;
}

.card-content p {
    color: var(--gray-600);
    font-size: 0.95rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

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

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

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

.btn-secondary:hover {
    background: var(--black);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-full {
    width: 100%;
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 1rem;
    letter-spacing: -0.025em;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* How It Works Section */
.how-it-works {
    padding: 80px 0;
    background: var(--white);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.step-card {
    text-align: center;
    padding: 2rem;
    background: var(--gray-100);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
}

.step-card:hover {
    transform: translateY(-5px);
    background: var(--primary-light);
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: var(--black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 1rem;
}

.step-card p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* Customer Signup Section */
.customer-signup {
    padding: 80px 0;
    background: var(--primary-light);
}

.form-container {
    max-width: 500px;
    margin: 0 auto;
    background: var(--white);
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.onboarding-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.customer-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group input,
.form-group select {
    padding: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.25rem;
    padding-right: 2.5rem;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(207, 233, 200, 0.1);
}

.form-group input::placeholder {
    color: var(--gray-400);
}

.form-group select {
    color: var(--gray-700);
}

.form-group select:invalid {
    color: var(--gray-400);
}

.form-group select option {
    color: var(--gray-700);
    background: var(--white);
    padding: 0.5rem;
}

/* Advertiser Signup Section */
.advertiser-signup {
    padding: 80px 0;
    background: var(--gray-100);
}

.advertiser-form-container {
    background: var(--white);
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    margin-top: 3rem;
}

.advertiser-form-container h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 1rem;
    text-align: center;
}

.advertiser-form-container p {
    text-align: center;
    color: var(--gray-600);
    margin-bottom: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.advertiser-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.advertiser-form textarea {
    padding: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
    resize: vertical;
    min-height: 100px;
    font-family: inherit;
}

.advertiser-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(207, 233, 200, 0.1);
}

.advertiser-form select {
    padding: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.25rem;
    padding-right: 2.5rem;
    color: var(--gray-700);
}

.advertiser-form select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(207, 233, 200, 0.1);
}

.advertiser-form select:invalid {
    color: var(--gray-400);
}

.advertiser-form select option {
    color: var(--gray-700);
    background: var(--white);
    padding: 0.5rem;
}

.advertiser-content {
    max-width: 1000px;
    margin: 0 auto;
}

.advertiser-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 1.5rem;
    text-align: center;
}

.advertiser-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    text-align: center;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
    justify-items: start;
}

.benefits-grid .benefit-card:last-child:nth-child(4n),
.benefits-grid .benefit-card:last-child:nth-child(4n-1),
.benefits-grid .benefit-card:last-child:nth-child(4n-2),
.benefits-grid .benefit-card:last-child:nth-child(4n-3) {
    grid-column: 1 / -1;
    justify-self: center;
    max-width: 250px;
}

.benefit-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.benefit-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.benefit-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.75rem;
}

.benefit-card p {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.5;
}

.cta-section {
    text-align: center;
    background: var(--white);
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.cta-section h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: var(--white);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.contact-item:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

.contact-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    border-radius: 50%;
}

.contact-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--gray-600);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    background: var(--black);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-logo h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    color: var(--gray-400);
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-700);
}

.footer-bottom p {
    color: var(--gray-400);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

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

    .hero-description {
        font-size: 1.125rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-card {
        transform: none;
        margin-top: 2rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .form-container {
        padding: 2rem;
        margin: 0 1rem;
    }

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

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .advertiser-form-container {
        padding: 2rem;
        margin: 0 1rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
    }

    .form-container {
        padding: 1.5rem;
    }

    .benefit-card {
        padding: 1.5rem;
    }

    .cta-section {
        padding: 2rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.hero-visual,
.section-header,
.benefit-card,
.contact-item {
    animation: fadeInUp 0.6s ease-out;
}

/* Focus States for Accessibility */
.btn:focus,
.nav-link:focus,
input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #2D5016;
        --gray-600: #000000;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}