/* ==========================================================================
   CSS Reset and Base Styles
   ========================================================================== */

* {
    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: 1.5;
    color: #1f2937;
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul {
    list-style: none;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.1;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.875rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1.125rem;
}

p {
    line-height: 1.6;
    margin-bottom: 1rem;
}

/* Mobile Typography */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
}

/* ==========================================================================
   Color System and Variables
   ========================================================================== */

:root {
    /* Primary Colors */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;

    /* Secondary Colors */
    --secondary-50: #f5f3ff;
    --secondary-100: #ede9fe;
    --secondary-200: #ddd6fe;
    --secondary-300: #c4b5fd;
    --secondary-400: #a78bfa;
    --secondary-500: #8b5cf6;
    --secondary-600: #7c3aed;
    --secondary-700: #6d28d9;
    --secondary-800: #5b21b6;
    --secondary-900: #4c1d95;

    /* Accent Colors */
    --accent-50: #ecfdf5;
    --accent-100: #d1fae5;
    --accent-200: #a7f3d0;
    --accent-300: #6ee7b7;
    --accent-400: #34d399;
    --accent-500: #10b981;
    --accent-600: #059669;
    --accent-700: #047857;
    --accent-800: #065f46;
    --accent-900: #064e3b;

    /* Neutral Colors */
    --neutral-50: #f9fafb;
    --neutral-100: #f3f4f6;
    --neutral-200: #e5e7eb;
    --neutral-300: #d1d5db;
    --neutral-400: #9ca3af;
    --neutral-500: #6b7280;
    --neutral-600: #4b5563;
    --neutral-700: #374151;
    --neutral-800: #1f2937;
    --neutral-900: #111827;

    /* Semantic Colors */
    --success-500: #10b981;
    --warning-500: #f59e0b;
    --error-500: #ef4444;

    /* Spacing System */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-base: 0.2s ease-out;
    --transition-slow: 0.3s ease-out;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-6);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--space-8);
    }
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    margin-bottom: var(--space-4);
    color: var(--neutral-800);
}

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

/* ==========================================================================
   Button Components
   ========================================================================== */

.btn-primary {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    color: white;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-700), var(--secondary-700));
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-600);
    padding: var(--space-3) var(--space-6);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-base);
}

.btn-secondary:hover {
    color: var(--primary-700);
    background: var(--primary-50);
}

.btn-outline {
    background: transparent;
    color: var(--primary-600);
    padding: var(--space-3) var(--space-6);
    border: 2px solid var(--primary-600);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-base);
}

.btn-outline:hover {
    background: var(--primary-600);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: var(--space-4) var(--space-8);
    font-size: 1rem;
}

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

.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-base);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) 0;
}

/* Logo Styles */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 700;
    font-size: 1.5rem;
}

.logo-icon {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    color: white;
    padding: var(--space-2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Desktop Navigation */
.nav-desktop {
    display: none;
    align-items: center;
    gap: var(--space-8);
}

@media (min-width: 768px) {
    .nav-desktop {
        display: flex;
    }
}

.nav-link {
    color: var(--neutral-700);
    font-weight: 500;
    transition: color var(--transition-base);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-600);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    transition: width var(--transition-base);
}

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

/* Header CTA */
.header-cta {
    display: none;
    align-items: center;
    gap: var(--space-4);
}

@media (min-width: 768px) {
    .header-cta {
        display: flex;
    }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-2);
    z-index: 1001;
}

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

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--neutral-700);
    transition: all var(--transition-base);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Navigation */
.nav-mobile {
    display: none;
    flex-direction: column;
    gap: var(--space-4);
    padding: var(--space-6) 0;
    border-top: 1px solid var(--neutral-200);
    background: white;
}

.nav-mobile.active {
    display: flex;
}

.nav-link-mobile {
    color: var(--neutral-700);
    font-weight: 500;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--neutral-100);
    transition: color var(--transition-base);
}

.nav-link-mobile:hover {
    color: var(--primary-600);
}

.mobile-cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

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

.hero {
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--secondary-50) 100%);
    padding: var(--space-24) 0;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%236366f1' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-16);
    align-items: center;
    position: relative;
    z-index: 1;
}

@media (min-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
    }
}

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

.hero-title {
    margin-bottom: var(--space-6);
    color: var(--neutral-800);
}

.hero-description {
    font-size: 1.25rem;
    color: var(--neutral-600);
    margin-bottom: var(--space-8);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn-large {
        width: 100%;
        justify-content: center;
    }
}

.trust-indicators {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-6);
}

.trust-item {
    text-align: center;
}

.trust-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-600);
    margin-bottom: var(--space-1);
}

.trust-label {
    font-size: 0.875rem;
    color: var(--neutral-600);
    font-weight: 500;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-graphic {
    position: relative;
    width: 400px;
    height: 400px;
}

.central-graphic {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    border-radius: 50%;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    justify-content: center;
}

.central-graphic::after {
    content: '📊';
    font-size: 4rem;
}

.floating-card {
    position: absolute;
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    animation: float 3s ease-in-out infinite;
    white-space: nowrap;
}

.card-1 {
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.card-2 {
    bottom: 10%;
    left: 10%;
    animation-delay: 1s;
}

.card-3 {
    top: 50%;
    left: -10%;
    animation-delay: 2s;
}

.card-icon {
    font-size: 1.5rem;
}

.card-text {
    font-weight: 600;
    color: var(--neutral-700);
    font-size: 0.875rem;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@media (max-width: 1024px) {
    .hero-graphic {
        width: 300px;
        height: 300px;
    }
    
    .central-graphic {
        width: 150px;
        height: 150px;
    }
    
    .central-graphic::after {
        font-size: 3rem;
    }
    
    .floating-card {
        padding: var(--space-3);
    }
    
    .card-text {
        font-size: 0.75rem;
    }
}

/* ==========================================================================
   Publishers Section
   ========================================================================== */

.publishers-section {
    padding: var(--space-24) 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-16);
}

.feature-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid var(--neutral-200);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-200);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    display: block;
}

.feature-title {
    color: var(--neutral-800);
    margin-bottom: var(--space-3);
    font-size: 1.25rem;
}

.feature-description {
    color: var(--neutral-600);
    line-height: 1.6;
    margin: 0;
}

/* Integration Steps */
.integration-steps {
    margin-top: var(--space-16);
}

.steps-title {
    text-align: center;
    margin-bottom: var(--space-12);
    color: var(--neutral-800);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
}

.step {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-6);
    background: var(--neutral-50);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-600);
}

.step-number {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h4 {
    color: var(--neutral-800);
    margin-bottom: var(--space-2);
    font-size: 1.125rem;
}

.step-content p {
    color: var(--neutral-600);
    margin: 0;
    line-height: 1.5;
}

/* ==========================================================================
   Advertisers Section
   ========================================================================== */

.advertisers-section {
    padding: var(--space-24) 0;
    background: var(--neutral-50);
}

.campaign-types {
    margin-top: var(--space-16);
}

.campaign-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
}

.campaign-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    text-align: center;
}

.campaign-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.campaign-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-3);
    display: block;
}

.campaign-card h4 {
    color: var(--neutral-800);
    margin-bottom: var(--space-2);
    font-size: 1.125rem;
}

.campaign-card p {
    color: var(--neutral-600);
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.5;
}

/* ==========================================================================
   How It Works Section
   ========================================================================== */

.how-it-works {
    padding: var(--space-24) 0;
    background: white;
}

.process-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-12);
}

.tab-button {
    padding: var(--space-3) var(--space-6);
    border: 2px solid var(--neutral-300);
    border-radius: var(--radius-lg);
    font-weight: 600;
    color: var(--neutral-600);
    transition: all var(--transition-base);
    background: white;
}

.tab-button.active {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    color: white;
    border-color: transparent;
}

.tab-button:hover:not(.active) {
    border-color: var(--primary-600);
    color: var(--primary-600);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-8);
}

.process-step {
    text-align: center;
    position: relative;
}

.process-step::after {
    content: '→';
    position: absolute;
    right: -2rem;
    top: 20px;
    font-size: 1.5rem;
    color: var(--primary-600);
}

.process-step:last-child::after {
    display: none;
}

@media (max-width: 768px) {
    .process-step::after {
        content: '↓';
        right: auto;
        left: 50%;
        transform: translateX(-50%);
        top: auto;
        bottom: -2rem;
    }
}

.process-number {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin: 0 auto var(--space-4);
}

.process-content h4 {
    color: var(--neutral-800);
    margin-bottom: var(--space-2);
    font-size: 1.125rem;
}

.process-content p {
    color: var(--neutral-600);
    margin: 0;
    line-height: 1.5;
}

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

.key-features {
    padding: var(--space-24) 0;
    background: var(--neutral-50);
}

.features-showcase {
    display: grid;
    gap: var(--space-12);
}

.feature-highlight {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    align-items: center;
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
}

@media (min-width: 1024px) {
    .feature-highlight {
        grid-template-columns: auto 1fr;
    }
    
    .feature-highlight:nth-child(even) {
        grid-template-columns: 1fr auto;
    }
    
    .feature-highlight:nth-child(even) .feature-highlight-icon {
        order: 2;
    }
    
    .feature-highlight:nth-child(even) .feature-highlight-content {
        order: 1;
    }
}

.feature-highlight-icon {
    font-size: 4rem;
    text-align: center;
    padding: var(--space-4);
}

.feature-highlight-content h3 {
    color: var(--neutral-800);
    margin-bottom: var(--space-3);
    font-size: 1.5rem;
}

.feature-highlight-content p {
    color: var(--neutral-600);
    margin-bottom: var(--space-4);
    font-size: 1.125rem;
    line-height: 1.6;
}

.feature-highlight-content ul {
    color: var(--neutral-600);
}

.feature-highlight-content li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    line-height: 1.5;
}

.feature-highlight-content li::before {
    content: '✓';
    color: var(--accent-600);
    font-weight: 700;
    flex-shrink: 0;
}

/* ==========================================================================
   Statistics Section
   ========================================================================== */

.statistics {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-8);
}

.stat-card {
    text-align: center;
    padding: var(--space-4);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    display: block;
    margin-bottom: var(--space-2);
    line-height: 1;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 500;
}

@media (max-width: 768px) {
    .stat-number {
        font-size: 2.5rem;
    }
}

/* ==========================================================================
   Testimonials Section
   ========================================================================== */

.testimonials {
    padding: var(--space-24) 0;
    background: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-8);
}

.testimonial-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--neutral-200);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: var(--space-6);
    font-size: 4rem;
    color: var(--primary-600);
    font-weight: 700;
    line-height: 1;
}

.testimonial-content {
    margin-bottom: var(--space-6);
    padding-top: var(--space-4);
}

.testimonial-content p {
    color: var(--neutral-700);
    font-size: 1.125rem;
    line-height: 1.6;
    font-style: italic;
    margin: 0;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
}

.author-name {
    font-weight: 600;
    color: var(--neutral-800);
    margin-bottom: var(--space-1);
}

.author-role {
    color: var(--neutral-600);
    font-size: 0.875rem;
}

.testimonial-rating {
    color: #fbbf24;
    font-size: 1.25rem;
}

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

.faq {
    padding: var(--space-24) 0;
    background: var(--neutral-50);
}

.faq-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-12);
    flex-wrap: wrap;
}

.faq-tab-button {
    padding: var(--space-3) var(--space-6);
    border: 2px solid var(--neutral-300);
    border-radius: var(--radius-lg);
    font-weight: 600;
    color: var(--neutral-600);
    transition: all var(--transition-base);
    background: white;
}

.faq-tab-button.active {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    color: white;
    border-color: transparent;
}

.faq-tab-button:hover:not(.active) {
    border-color: var(--primary-600);
    color: var(--primary-600);
}

.faq-content {
    display: none;
    max-width: 800px;
    margin: 0 auto;
}

.faq-content.active {
    display: block;
}

.faq-item {
    background: white;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--neutral-200);
    transition: all var(--transition-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: var(--space-6);
    background: white;
    color: var(--neutral-800);
    font-weight: 600;
    font-size: 1.125rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.faq-question:hover {
    color: var(--primary-600);
}

.faq-arrow {
    font-size: 1.5rem;
    font-weight: 300;
    transition: transform var(--transition-base);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-base);
    background: var(--neutral-50);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--space-6) var(--space-6);
    color: var(--neutral-600);
    line-height: 1.6;
    margin: 0;
}

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

.footer {
    background: var(--neutral-800);
    color: white;
    padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-12);
}

.footer-section h4 {
    margin-bottom: var(--space-4);
    font-size: 1.125rem;
}

.footer-title {
    color: white;
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.footer-description {
    color: var(--neutral-400);
    margin-bottom: var(--space-6);
    line-height: 1.6;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-links a {
    color: var(--neutral-400);
    transition: color var(--transition-base);
}

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

.social-links {
    display: flex;
    gap: var(--space-4);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--neutral-700);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutral-400);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--primary-600);
    color: white;
    transform: translateY(-2px);
}

.contact-info {
    margin-top: var(--space-4);
    color: var(--neutral-400);
}

.contact-info p {
    margin-bottom: var(--space-2);
}

/* Newsletter */
.newsletter-description {
    color: var(--neutral-400);
    margin-bottom: var(--space-4);
    line-height: 1.5;
}

.newsletter-form {
    display: flex;
    gap: var(--space-2);
}

.newsletter-input {
    flex: 1;
    padding: var(--space-3);
    border: 1px solid var(--neutral-600);
    border-radius: var(--radius-lg);
    background: var(--neutral-700);
    color: white;
    font-size: 0.875rem;
}

.newsletter-input::placeholder {
    color: var(--neutral-400);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--primary-600);
}

.newsletter-button {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    color: white;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.newsletter-button:hover {
    background: linear-gradient(135deg, var(--primary-700), var(--secondary-700));
    transform: translateY(-1px);
}

@media (max-width: 480px) {
    .newsletter-form {
        flex-direction: column;
    }
}

/* Footer Bottom */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--neutral-700);
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.legal-links {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.legal-links a {
    color: var(--neutral-400);
    font-size: 0.875rem;
    transition: color var(--transition-base);
}

.legal-links a:hover {
    color: white;
}

.trust-badges {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.trust-badge {
    background: var(--neutral-700);
    color: var(--neutral-300);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 500;
}

@media (max-width: 768px) {
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-legal {
        flex-direction: column;
        gap: var(--space-3);
    }
}

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

/* Mobile Styles (max-width: 767px) */
@media (max-width: 767px) {
    .hero {
        padding: var(--space-16) 0;
        min-height: auto;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .trust-indicators {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .trust-number {
        font-size: 1.5rem;
    }
    
    .trust-label {
        font-size: 0.75rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps-container {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .campaign-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablet Styles (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Large Desktop Styles (1200px+) */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}