:root {
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --secondary: #10B981;
    --secondary-dark: #059669;
    --accent: #F59E0B;
    --accent-dark: #D97706;
    --text: #1E293B;
    --text-light: #64748B;
    --text-lighter: #94A3B8;
    --background: #F8FAFC;
    --white: #FFFFFF;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --success: #10B981;
    --error: #EF4444;
    --warning: #F59E0B;
    --info: #3B82F6;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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-sm: 0.125rem;
    --border-radius: 0.25rem;
    --border-radius-md: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 0.75rem;
    --border-radius-2xl: 1rem;
    --border-radius-3xl: 1.5rem;
    --border-radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', sans-serif;
    color: var(--text);
    background-color: var(--background);
    line-height: 1.6;
    font-size: 16px;
}

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

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-dark);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: 5rem 0;
}

/* Concept Banner */
.concept-banner {
    background-color: var(--accent);
    color: var(--white);
    padding: 0.75rem 0;
    text-align: center;
    font-weight: 500;
    position: relative;
    z-index: 101;
}

.concept-banner p {
    margin-bottom: 0;
}

.concept-banner strong {
    font-weight: 700;
}

/* Header & Navigation */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo h1 {
    font-size: 1.75rem;
    margin-bottom: 0;
    font-weight: 700;
}

.logo span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: var(--text);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text);
    margin-bottom: 5px;
    border-radius: var(--border-radius-full);
    transition: all 0.3s ease;
}

/* Buttons */
.cta-button {
    display: inline-block;
    background-color: var(--primary);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
}

.cta-button:hover {
    background-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.submit-button {
    display: inline-block;
    background-color: var(--primary);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
    width: 100%;
}

.submit-button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 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='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.1;
}

.hero-section .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 80vh;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 500px;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-image {
    flex: 0 0 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* API Visualization */
.api-visualization {
    position: relative;
    width: 400px;
    height: 400px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-full);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-xl);
}

.central-node {
    width: 100px;
    height: 100px;
    background-color: var(--white);
    border-radius: var(--border-radius-full);
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary);
    box-shadow: var(--shadow-lg);
    z-index: 2;
}

.api-nodes {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.api-node {
    position: absolute;
    width: 90px;
    height: 90px;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: var(--border-radius-full);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text);
    box-shadow: var(--shadow-md);
    padding: 0.5rem;
    line-height: 1.2;
    z-index: 1;
}

.node-1 {
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
}

.node-2 {
    top: 30%;
    right: 10%;
}

.node-3 {
    bottom: 10%;
    left: 50%;
    transform: translateX(-50%);
}

.node-4 {
    top: 30%;
    left: 10%;
}

.node-5 {
    top: 60%;
    right: 15%;
}

.connection-lines {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
}

.connection-lines::before,
.connection-lines::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80%;
    height: 80%;
    border: 2px dashed rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-full);
    transform: translate(-50%, -50%);
}

.connection-lines::after {
    width: 60%;
    height: 60%;
    border-style: solid;
}

/* Value Section */
.value-section {
    background-color: var(--white);
    text-align: center;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.value-card {
    background-color: var(--gray-100);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    transition: all 0.3s ease;
}

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

.value-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary);
    border-radius: var(--border-radius-full);
}

.value-icon svg {
    width: 30px;
    height: 30px;
    color: var(--white);
}

.value-card h3 {
    margin-bottom: 1rem;
}

.value-card p {
    color: var(--text-light);
}

/* Concept Section */
.concept-section {
    background-color: var(--gray-100);
    text-align: center;
}

.concept-demo {
    margin: 3rem 0;
}

.mockup-container {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.mockup-header {
    background-color: var(--gray-800);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
}

.mockup-controls {
    display: flex;
    gap: 0.5rem;
}

.mockup-controls span {
    width: 12px;
    height: 12px;
    border-radius: var(--border-radius-full);
}

.mockup-controls span:nth-child(1) {
    background-color: #FF5F56;
}

.mockup-controls span:nth-child(2) {
    background-color: #FFBD2E;
}

.mockup-controls span:nth-child(3) {
    background-color: #27C93F;
}

.mockup-title {
    margin-left: auto;
    margin-right: auto;
    color: var(--white);
    font-size: 0.875rem;
}

.mockup-content {
    display: flex;
    height: 500px;
}

.mockup-sidebar {
    width: 200px;
    background-color: var(--gray-100);
    padding: 1.5rem 0;
}

.sidebar-item {
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

.sidebar-item:hover {
    background-color: var(--gray-200);
}

.sidebar-item.active {
    background-color: var(--primary);
    color: var(--white);
}

.mockup-main {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
    text-align: left;
}

.mockup-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background-color: var(--gray-100);
    padding: 1rem;
    border-radius: var(--border-radius);
}

.stat-card h4 {
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.mockup-chart {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.chart-header h4 {
    margin-bottom: 0;
}

.chart-legend {
    display: flex;
    gap: 1rem;
}

.legend-item {
    display: flex;
    align-items: center;
    font-size: 0.75rem;
}

.legend-color {
    width: 10px;
    height: 10px;
    border-radius: var(--border-radius-sm);
    margin-right: 0.25rem;
}

.legend-color.success {
    background-color: var(--success);
}

.legend-color.error {
    background-color: var(--error);
}

.legend-color.latency {
    background-color: var(--warning);
}

.chart-visual {
    height: 200px;
    position: relative;
}

.chart-bars {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    height: 100%;
}

.chart-bar {
    width: 40px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    position: relative;
}

.bar-stack {
    width: 100%;
    border-radius: var(--border-radius-sm) var(--border-radius-sm) 0 0;
}

.bar-stack.success {
    background-color: var(--success);
}

.bar-stack.error {
    background-color: var(--error);
}

.bar-label {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-light);
}

.chart-bar.active .bar-label {
    color: var(--primary);
    font-weight: 700;
}

.latency-line {
    position: absolute;
    top: 30%;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--warning);
    z-index: 1;
}

.mockup-integrations {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 1rem;
}

.mockup-integrations h4 {
    margin-bottom: 1rem;
}

.integration-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.integration-card {
    background-color: var(--gray-100);
    padding: 0.75rem;
    border-radius: var(--border-radius);
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
}

.concept-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    text-align: left;
}

.feature h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.feature p {
    color: var(--text-light);
}

/* Sale Section */
.sale-section {
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-900) 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.sale-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 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='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.1;
}

.sale-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.sale-headline {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--accent);
}

.domain-stats {
    display: flex;
    justify-content: space-around;
    margin: 3rem 0;
    flex-wrap: wrap;
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-300);
}

/* Contact Section */
.contact-section {
    background-color: var(--white);
    text-align: center;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-top: 3rem;
    text-align: left;
}

.contact-info p {
    margin-bottom: 2rem;
}

.contact-method {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.contact-method svg {
    width: 20px;
    height: 20px;
    margin-right: 0.75rem;
    color: var(--primary);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 0;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-family: 'Roboto', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.privacy-note {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* Footer */
footer {
    background-color: var(--gray-900);
    color: var(--white);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 3rem;
}

.footer-logo h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-logo span {
    color: var(--primary);
}

.footer-logo p {
    color: var(--gray-400);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--gray-400);
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 1.5rem;
    text-align: center;
    font-size: 0.875rem;
    color: var(--gray-500);
}

.concept-disclaimer {
    margin-top: 1rem;
    padding: 0.75rem;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    color: var(--gray-300);
    text-align: center;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .hero-section .container {
        flex-direction: column;
        text-align: center;
        padding: 4rem 1.5rem;
        min-height: auto;
    }
    
    .hero-content {
        margin-bottom: 3rem;
    }
    
    .api-visualization {
        width: 350px;
        height: 350px;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    section {
        padding: 4rem 0;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        box-shadow: var(--shadow);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        z-index: 99;
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
    
    .nav-links li {
        margin: 0 0 1.5rem 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .domain-stats {
        flex-direction: column;
        gap: 2rem;
    }
    
    .mockup-content {
        flex-direction: column;
        height: auto;
    }
    
    .mockup-sidebar {
        width: 100%;
        display: flex;
        overflow-x: auto;
        padding: 1rem 0;
    }
    
    .sidebar-item {
        white-space: nowrap;
    }
    
    .mockup-stats {
        grid-template-columns: 1fr;
    }
    
    .integration-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .api-visualization {
        width: 280px;
        height: 280px;
    }
    
    .central-node {
        width: 80px;
        height: 80px;
    }
    
    .api-node {
        width: 70px;
        height: 70px;
        font-size: 0.7rem;
    }
    
    .value-grid {
        grid-template-columns: 1fr;
    }
}