/* ===================================
   AGENT STUDIO MASTERY - MAIN STYLES
   =================================== */

/* Root Variables */
:root {
    --primary-blue: #2563eb;
    --primary-green: #10b981;
    --primary-orange: #f97316;
    --dark-blue: #1e40af;
    --light-blue: #dbeafe;
    --dark-green: #059669;
    --light-green: #d1fae5;
    --dark-orange: #ea580c;
    --light-orange: #ffedd5;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navigation */
.main-nav {
    background: var(--white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.logo i {
    font-size: 2rem;
    color: var(--primary-orange);
}

.nav-links {
    display: flex;
    gap: 10px;
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.3s ease;
    white-space: nowrap;
}

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

.nav-link.active {
    background-color: var(--primary-blue);
    color: var(--white);
}

.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-700);
}

/* Main Content */
.main-content {
    margin-top: 0;
    min-height: 100vh;
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 50px;
    opacity: 0.95;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.stat-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
}

.stat-card i {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--primary-orange);
}

.stat-card h3 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-card p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Intro Section */
.intro-section {
    padding: 60px 0;
}

.intro-section h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: var(--gray-900);
}

.intro-section h2 i {
    color: var(--primary-blue);
    margin-right: 10px;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.intro-text p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    line-height: 1.8;
}

.highlight-box {
    background: var(--light-green);
    border-left: 5px solid var(--primary-green);
    padding: 30px;
    border-radius: 8px;
    margin-top: 30px;
}

.highlight-box h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--dark-green);
}

.highlight-box ul {
    list-style: none;
}

.highlight-box li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    font-size: 1.05rem;
}

.highlight-box li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: 700;
    font-size: 1.2rem;
}

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

.workflow-preview {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

.workflow-node {
    background: var(--gray-100);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    margin: 10px 0;
    border: 2px solid var(--gray-300);
    transition: all 0.3s ease;
}

.workflow-node:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.workflow-node.start {
    background: var(--light-blue);
    border-color: var(--primary-blue);
}

.workflow-node.ai {
    background: var(--light-orange);
    border-color: var(--primary-orange);
}

.workflow-node.action {
    background: var(--light-green);
    border-color: var(--primary-green);
}

.workflow-node.end {
    background: var(--gray-200);
    border-color: var(--gray-600);
}

.workflow-node i {
    font-size: 2rem;
    display: block;
    margin-bottom: 10px;
}

.workflow-node.start i { color: var(--primary-blue); }
.workflow-node.ai i { color: var(--primary-orange); }
.workflow-node.action i { color: var(--primary-green); }
.workflow-node.end i { color: var(--gray-600); }

.workflow-arrow {
    text-align: center;
    font-size: 2rem;
    color: var(--gray-400);
    margin: 5px 0;
}

/* Features Section */
.features-section {
    padding: 80px 0;
    background: var(--white);
}

.features-section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    color: var(--gray-900);
}

.features-section h2 i {
    color: var(--primary-orange);
    margin-right: 10px;
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: 16px;
    padding: 35px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: var(--light-blue);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon i {
    font-size: 2rem;
    color: var(--primary-blue);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--gray-900);
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 20px;
}

.feature-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.feature-link:hover {
    gap: 12px;
    color: var(--dark-blue);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--dark-green) 100%);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
    margin: 60px 0;
    border-radius: 16px;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    opacity: 0.95;
}

.cta-button {
    background: var(--white);
    color: var(--primary-green);
    border: none;
    padding: 18px 40px;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

/* Page Header */
.page-header {
    text-align: center;
    padding: 60px 0 40px;
}

.page-header h1 {
    font-size: 3rem;
    color: var(--gray-900);
    margin-bottom: 15px;
}

.page-header h1 i {
    color: var(--primary-blue);
    margin-right: 15px;
}

.page-header .subtitle {
    font-size: 1.3rem;
    color: var(--gray-600);
}

/* Section Block */
.section-block {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-md);
}

.section-block h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--gray-900);
    border-bottom: 3px solid var(--primary-blue);
    padding-bottom: 15px;
}

.section-block h2 i {
    color: var(--primary-blue);
    margin-right: 10px;
}

/* Two Column Layout */
.two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.column h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--gray-800);
}

.problem-list li {
    padding: 12px 0;
    padding-left: 35px;
    position: relative;
    font-size: 1.05rem;
    color: var(--gray-700);
}

.problem-list li i {
    position: absolute;
    left: 0;
    color: #dc2626;
    font-size: 1.2rem;
}

.solution-list li {
    padding: 12px 0;
    padding-left: 35px;
    position: relative;
    font-size: 1.05rem;
    color: var(--gray-700);
}

.solution-list li i {
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-size: 1.2rem;
}

/* Benefits Section */
.benefit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.benefit-item {
    background: var(--gray-50);
    padding: 30px;
    border-radius: 12px;
    border: 2px solid var(--gray-200);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    border-color: var(--primary-blue);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.benefit-icon.blue {
    background: var(--light-blue);
}

.benefit-icon.green {
    background: var(--light-green);
}

.benefit-icon.orange {
    background: var(--light-orange);
}

.benefit-icon i {
    font-size: 1.8rem;
}

.benefit-icon.blue i { color: var(--primary-blue); }
.benefit-icon.green i { color: var(--primary-green); }
.benefit-icon.orange i { color: var(--primary-orange); }

.benefit-item h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.benefit-item p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* Pro Tip Box */
.pro-tip {
    background: var(--light-orange);
    border-left: 5px solid var(--primary-orange);
    padding: 20px 25px;
    border-radius: 8px;
    margin-bottom: 30px;
    display: flex;
    align-items: start;
    gap: 15px;
}

.pro-tip i {
    color: var(--primary-orange);
    font-size: 1.5rem;
    margin-top: 3px;
}

.pro-tip strong {
    color: var(--dark-orange);
}

/* Steps Container */
.steps-container {
    margin-top: 30px;
}

.step-item {
    display: flex;
    gap: 25px;
    margin-bottom: 40px;
    align-items: start;
}

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

.step-content {
    flex: 1;
}

.step-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--gray-900);
}

.step-content p {
    margin-bottom: 15px;
    line-height: 1.7;
    color: var(--gray-700);
}

.step-content ul,
.step-content ol {
    margin-left: 25px;
    margin-bottom: 15px;
}

.step-content li {
    margin-bottom: 10px;
    line-height: 1.7;
}

/* Code Block */
.code-block {
    background: var(--gray-800);
    color: var(--white);
    padding: 20px;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 15px 0;
    overflow-x: auto;
    white-space: pre-wrap;
}

/* Example Box */
.example-box {
    background: var(--gray-50);
    border: 2px solid var(--gray-300);
    border-radius: 12px;
    padding: 25px;
    margin: 20px 0;
}

.example-box h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--gray-800);
}

/* Warning Box */
.warning-box {
    background: #fef2f2;
    border-left: 5px solid #dc2626;
    padding: 20px 25px;
    border-radius: 8px;
    margin: 20px 0;
    display: flex;
    align-items: start;
    gap: 15px;
}

.warning-box i {
    color: #dc2626;
    font-size: 1.5rem;
    margin-top: 3px;
}

.warning-box strong {
    color: #dc2626;
}

/* Success Box */
.success-box {
    background: var(--light-green);
    border-left: 5px solid var(--primary-green);
    padding: 20px 25px;
    border-radius: 8px;
    margin: 20px 0;
    display: flex;
    align-items: start;
    gap: 15px;
}

.success-box i {
    color: var(--primary-green);
    font-size: 1.5rem;
    margin-top: 3px;
}

.success-box strong {
    color: var(--dark-green);
}

/* Variable Types */
.variable-types {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 15px;
}

.var-type {
    background: var(--light-blue);
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-blue);
}

.var-type strong {
    color: var(--primary-blue);
}

.var-type em {
    color: var(--gray-600);
    font-size: 0.95rem;
}

/* Template Box */
.template-box {
    background: var(--gray-50);
    border: 3px solid var(--primary-green);
    border-radius: 16px;
    padding: 35px;
    margin-top: 30px;
}

.template-box h3 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: var(--dark-green);
    text-align: center;
}

.template-workflow {
    margin-bottom: 30px;
}

.template-step {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 15px;
    border-left: 4px solid var(--primary-green);
}

.template-step strong {
    display: block;
    margin-bottom: 10px;
    color: var(--dark-green);
    font-size: 1.1rem;
}

.copy-template-btn {
    width: 100%;
    background: var(--primary-green);
    color: var(--white);
    border: none;
    padding: 15px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.copy-template-btn:hover {
    background: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Next Steps */
.next-steps {
    margin-top: 60px;
    padding: 40px 0;
}

.next-steps h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 40px;
    color: var(--gray-900);
}

.next-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.next-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    padding: 30px;
    text-decoration: none;
    color: var(--gray-800);
    transition: all 0.3s ease;
    display: block;
    text-align: center;
}

.next-card:hover {
    border-color: var(--primary-blue);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.next-card i {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
    display: block;
}

.next-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--gray-900);
}

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

/* Node Detail Styles */
.node-detail {
    border-left: 5px solid var(--primary-blue);
}

.node-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.node-icon {
    width: 80px;
    height: 80px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.node-icon i {
    font-size: 2.5rem;
}

.node-subtitle {
    font-size: 1.1rem;
    color: var(--gray-600);
    margin-top: 8px;
}

.node-detail h3 {
    font-size: 1.4rem;
    margin: 25px 0 15px;
    color: var(--gray-800);
}

.node-detail h3 i {
    color: var(--primary-blue);
    margin-right: 10px;
    font-size: 1.2rem;
}

.feature-list {
    list-style: none;
    margin: 20px 0;
}

.feature-list li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    font-size: 1.05rem;
    line-height: 1.6;
}

.feature-list li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-size: 1.3rem;
    font-weight: bold;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

/* Workflow Pattern Styles */
.workflow-pattern {
    background: var(--gray-50);
    border-radius: 12px;
    padding: 30px;
    margin: 30px 0;
    border: 2px solid var(--gray-200);
}

.workflow-pattern h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--gray-900);
}

.workflow-pattern h3 i {
    color: var(--primary-green);
    margin-right: 10px;
}

.pattern-description {
    margin-top: 20px;
}

.pattern-description > p {
    font-size: 1.1rem;
    margin-bottom: 25px;
    padding: 15px;
    background: var(--white);
    border-left: 4px solid var(--primary-blue);
    border-radius: 6px;
}

.workflow-visual {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    margin: 25px 0;
}

.wf-step {
    background: var(--gray-100);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    margin: 15px auto;
    max-width: 500px;
    border: 2px solid var(--gray-300);
    font-size: 1.05rem;
}

.wf-step.blue {
    background: var(--light-blue);
    border-color: var(--primary-blue);
}

.wf-step.green {
    background: var(--light-green);
    border-color: var(--primary-green);
}

.wf-step.orange {
    background: var(--light-orange);
    border-color: var(--primary-orange);
}

.wf-step.purple {
    background: #f3e8ff;
    border-color: #9333ea;
}

.wf-step strong {
    display: block;
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.wf-step span {
    color: var(--gray-600);
    font-size: 0.95rem;
}

.wf-arrow {
    text-align: center;
    font-size: 2.5rem;
    color: var(--gray-400);
    margin: 10px 0;
}

.wf-decision {
    background: var(--gray-50);
    padding: 25px;
    border-radius: 12px;
    margin: 20px 0;
    border: 3px dashed var(--primary-orange);
}

.decision-box {
    text-align: center;
    background: var(--light-orange);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 25px;
    border: 2px solid var(--primary-orange);
}

.decision-box strong {
    font-size: 1.3rem;
    color: var(--dark-orange);
}

.decision-paths {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.path {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    border: 2px solid var(--gray-300);
    font-size: 0.95rem;
}

.path strong {
    display: block;
    margin-bottom: 10px;
    color: var(--gray-900);
    font-size: 1.05rem;
}

.path.high {
    border-color: var(--primary-green);
    background: var(--light-green);
}

.path.medium {
    border-color: var(--primary-orange);
    background: var(--light-orange);
}

.path.low {
    border-color: var(--gray-400);
    background: var(--gray-100);
}

/* Variable Guide */
.variable-guide {
    margin-top: 30px;
}

.var-category {
    background: var(--gray-50);
    padding: 25px;
    border-radius: 12px;
    margin: 20px 0;
    border-left: 5px solid var(--primary-blue);
}

.var-category h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--gray-900);
}

.var-category h3 i {
    color: var(--primary-blue);
    margin-right: 10px;
}

.var-category p {
    color: var(--gray-600);
    margin-bottom: 15px;
}

/* Version Control Stages */
.version-stages {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin: 40px 0;
    flex-wrap: wrap;
}

.version-stage {
    background: var(--white);
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    flex: 1;
    min-width: 220px;
    border: 3px solid var(--gray-300);
    transition: all 0.3s ease;
}

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

.version-stage.draft {
    border-color: var(--gray-400);
}

.version-stage.staging {
    border-color: var(--primary-orange);
}

.version-stage.production {
    border-color: var(--primary-green);
}

.stage-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
}

.version-stage.draft .stage-icon {
    background: var(--gray-200);
    color: var(--gray-600);
}

.version-stage.staging .stage-icon {
    background: var(--light-orange);
    color: var(--primary-orange);
}

.version-stage.production .stage-icon {
    background: var(--light-green);
    color: var(--primary-green);
}

.version-stage h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--gray-900);
}

.version-stage p {
    color: var(--gray-600);
    margin-bottom: 15px;
    line-height: 1.6;
}

.version-stage strong {
    display: block;
    margin-top: 15px;
    color: var(--gray-700);
    font-size: 0.9rem;
}

.version-arrow {
    font-size: 3rem;
    color: var(--gray-400);
}

/* Use Case Styles */
.use-case-block {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
    margin: 40px 0;
    box-shadow: var(--shadow-lg);
    border-left: 6px solid var(--primary-green);
}

.use-case-header {
    display: flex;
    align-items: center;
    gap: 25px;
    margin-bottom: 35px;
    padding-bottom: 25px;
    border-bottom: 3px solid var(--gray-200);
}

.use-case-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary-blue);
    opacity: 0.3;
}

.use-case-header h2 {
    font-size: 2rem;
    margin: 0;
    color: var(--gray-900);
}

.use-case-header h2 i {
    color: var(--primary-green);
    margin-right: 12px;
}

.use-case-tagline {
    font-size: 1.2rem;
    color: var(--gray-600);
    margin-top: 10px;
}

.use-case-content > div {
    margin: 30px 0;
}

.problem-solution {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}

.problem-box, .solution-box {
    padding: 25px;
    border-radius: 12px;
}

.problem-box {
    background: #fef2f2;
    border: 2px solid #dc2626;
}

.solution-box {
    background: var(--light-green);
    border: 2px solid var(--primary-green);
}

.problem-box h3 {
    color: #dc2626;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.solution-box h3 {
    color: var(--dark-green);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.problem-box ul, .solution-box ul {
    list-style: none;
    padding: 0;
}

.problem-box li, .solution-box li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.problem-box li:before {
    content: "✗";
    position: absolute;
    left: 0;
    color: #dc2626;
    font-weight: bold;
}

.solution-box li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: bold;
}

.implementation-box {
    background: var(--gray-50);
    padding: 30px;
    border-radius: 12px;
    border: 2px solid var(--gray-300);
}

.implementation-box h3 {
    font-size: 1.4rem;
    margin-bottom: 25px;
    color: var(--gray-900);
}

.workflow-steps {
    display: grid;
    gap: 15px;
}

.impl-step {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-blue);
    display: flex;
    align-items: start;
    gap: 15px;
}

.step-badge {
    background: var(--primary-blue);
    color: var(--white);
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.impl-step strong {
    display: block;
    margin-bottom: 5px;
    color: var(--gray-900);
}

.roi-box {
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--light-green) 100%);
    padding: 30px;
    border-radius: 12px;
    border: 3px solid var(--primary-blue);
}

.roi-box h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: var(--gray-900);
    text-align: center;
}

.roi-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.roi-metric {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    font-size: 1.05rem;
}

.roi-metric strong {
    display: block;
    margin-bottom: 8px;
    color: var(--primary-blue);
}

.industry-examples {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    border: 2px solid var(--gray-200);
}

.industry-examples h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: var(--gray-900);
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.industry-card {
    background: var(--gray-50);
    padding: 20px;
    border-radius: 8px;
    border: 2px solid var(--gray-300);
}

.industry-card strong {
    display: block;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.industry-card p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.6;
}

.use-case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.uc-summary {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    border: 2px solid var(--gray-200);
    transition: all 0.3s ease;
}

.uc-summary:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-blue);
}

.uc-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 1.8rem;
}

.uc-summary h3 {
    font-size: 1.1rem;
    margin: 10px 0;
    color: var(--gray-900);
}

.uc-summary p {
    font-size: 0.95rem;
    color: var(--gray-600);
    margin-bottom: 10px;
}

.uc-summary strong {
    display: block;
    color: var(--primary-green);
    font-size: 0.95rem;
    margin-top: 10px;
}

/* Monetization Styles */
.monetization-strategy {
    display: flex;
    gap: 25px;
    margin: 40px 0;
    background: var(--white);
    padding: 35px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    align-items: start;
}

.strategy-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--primary-green);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
}

.strategy-content {
    flex: 1;
}

.strategy-content h3 {
    font-size: 1.6rem;
    margin-bottom: 15px;
    color: var(--gray-900);
}

.strategy-content p {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.pricing-model {
    background: var(--gray-50);
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}

.pricing-model h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--gray-800);
}

.pricing-model ul {
    list-style: none;
    padding: 0;
}

.pricing-model li {
    padding: 10px 0;
    font-size: 1.05rem;
}

.target-market {
    margin: 20px 0;
}

.target-market h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.market-card {
    background: var(--light-green);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    border: 2px solid var(--primary-green);
}

.revenue-paths {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.revenue-path {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.revenue-path h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--gray-900);
    text-align: center;
}

.calc-box {
    background: var(--gray-50);
    padding: 20px;
    border-radius: 8px;
}

.calc-line {
    padding: 10px 0;
    border-bottom: 1px solid var(--gray-300);
    font-size: 1.05rem;
}

.calc-total {
    padding: 20px 0 10px;
    font-size: 1.2rem;
    text-align: center;
}

.client-acquisition {
    display: grid;
    gap: 25px;
    margin-top: 25px;
}

.acquisition-method {
    background: var(--gray-50);
    padding: 25px;
    border-radius: 12px;
    border-left: 5px solid var(--primary-blue);
}

.acquisition-method h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--gray-900);
}

.acquisition-method ul {
    margin: 15px 0;
}

.acquisition-method li {
    padding: 8px 0;
    font-size: 1.05rem;
}

.success-metric {
    background: var(--light-green);
    padding: 12px 20px;
    border-radius: 6px;
    margin-top: 15px;
    text-align: center;
    font-size: 1.05rem;
}

/* Prompt Library Styles */
.prompt-categories {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 30px;
    justify-content: center;
}

.category-filter {
    padding: 12px 24px;
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-filter:hover {
    border-color: var(--primary-blue);
    background: var(--light-blue);
}

.category-filter.active {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.prompt-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    padding: 30px;
    margin: 30px 0;
    box-shadow: var(--shadow-md);
}

.prompt-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 15px;
}

.prompt-header h3 {
    font-size: 1.5rem;
    color: var(--gray-900);
    margin: 0;
}

.prompt-tag {
    background: var(--primary-green);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.prompt-meta {
    display: flex;
    gap: 25px;
    margin-bottom: 20px;
    color: var(--gray-600);
    font-size: 0.95rem;
    flex-wrap: wrap;
}

.prompt-meta i {
    margin-right: 6px;
    color: var(--primary-blue);
}

.prompt-content {
    position: relative;
    margin: 20px 0;
}

.prompt-content pre {
    margin: 0;
    white-space: pre-wrap;
}

.copy-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--primary-green);
    color: var(--white);
    border: none;
    padding: 10px 18px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.copy-btn:hover {
    background: var(--dark-green);
    transform: translateY(-2px);
}

.prompt-tips {
    background: var(--light-blue);
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
}

.prompt-tips strong {
    display: block;
    margin-bottom: 10px;
    color: var(--primary-blue);
}

.prompt-tips ul {
    margin-left: 20px;
}

.prompt-tips li {
    margin: 8px 0;
}

.info-box {
    margin: 30px 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .two-column-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-links.mobile-active {
        display: flex;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .feature-cards {
        grid-template-columns: 1fr;
    }
    
    .benefit-grid {
        grid-template-columns: 1fr;
    }
}