@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

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

:root {
    --primary: #0055b8;
    --primary-hover: #004494;
    --primary-light: #e8f2ff;
    --accent: #b87300;
    --accent-light: #fff9f0;
    --text-dark: #1a1a1a;
    --text-medium: #4a4a4a;
    --text-light: #6b6b6b;
    --bg-light: #f9fafb;
    --border: #e5e7eb;
    --success: #059669;
    --success-light: #d1fae5;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: #ffffff;
}

/* Navigation */
.nav {
    background: white;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    text-decoration: none;
}

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

.nav-link {
    color: var(--text-medium);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0;
    transition: color 0.2s ease;
    position: relative;
}

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

.nav-link.active::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
}

.accent-bar {
    height: 4px;
    background: var(--primary);
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Typography */
h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 3rem 0 1.5rem;
    color: var(--text-dark);
    position: relative;
    padding-left: 1rem;
}

h3::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: var(--primary);
    border-radius: 2px;
}

h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 2rem 0 1rem;
    color: var(--text-dark);
}

h5 {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

p, ul {
    margin-bottom: 1rem;
    color: var(--text-dark);
    line-height: 1.7;
}

ul {
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.75rem;
}

ul li::marker {
    color: var(--primary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.625rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
    font-size: 1rem;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: #f3f4f6;
    border-color: var(--primary);
}

/* Hero Section */
.hero {
    padding: 3rem 0 4rem;
    border-bottom: 1px solid var(--border);
}

.tagline {
    font-size: 1.25rem;
    color: var(--text-medium);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.bio {
    color: var(--text-dark);
    max-width: 700px;
    line-height: 1.8;
    font-size: 1.0625rem;
    margin-bottom: 2rem;
}

.contact-links {
    display: flex;
    gap: 1rem;
}

/* Leadership Philosophy */
.leadership-philosophy {
    padding: 4rem 0;
    border-bottom: 1px solid var(--border);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.philosophy-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.philosophy-card h3 {
    margin: 0 0 1rem;
    padding-left: 0;
    font-size: 1.25rem;
}

.philosophy-card h3::before {
    display: none;
}

.philosophy-card p {
    margin: 0;
    font-size: 0.95rem;
}

/* Featured Work */
.featured-work {
    padding: 4rem 0;
    border-bottom: 1px solid var(--border);
}

.case-study-preview {
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    transition: all 0.2s ease;
}

.case-study-preview:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.case-preview-content h3 {
    margin: 0 0 0.5rem;
    padding-left: 0;
    font-size: 1.5rem;
}

.case-preview-content h3::before {
    display: none;
}

.case-subtitle {
    color: var(--text-medium);
    font-size: 1.05rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.case-tags {
    display: flex;
    gap: 0.75rem;
    margin: 1.5rem 0;
    flex-wrap: wrap;
}

.tag {
    background: var(--primary-light);
    color: var(--primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.case-link {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.case-link:hover {
    text-decoration: underline;
}

/* Additional Work */
.additional-work {
    padding: 4rem 0;
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.work-item {
    border-left: 2px solid transparent;
    padding: 1.5rem 0 1.5rem 1.5rem;
    transition: all 0.2s ease;
}

.work-item:hover {
    border-left-color: var(--primary);
    background: linear-gradient(90deg, rgba(0, 85, 184, 0.02) 0%, transparent 100%);
}

.work-item h4 {
    margin: 0 0 0.5rem;
    font-size: 1.125rem;
}

.work-company {
    color: var(--text-medium);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.work-item p:last-child {
    font-size: 0.95rem;
    margin: 0;
}

/* Case Study Specific Styles */
.case-study {
    padding: 4rem 0;
    border-bottom: 1px solid var(--border);
}

.case-study h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.case-study .subtitle {
    font-size: 1.125rem;
    color: var(--text-medium);
    margin-bottom: 2rem;
}

.challenge {
    background: var(--bg-light);
    border-left: 4px solid var(--primary);
    padding: 1.75rem;
    border-radius: 8px;
    margin: 2rem 0;
}

.challenge h3 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    color: var(--primary);
    font-weight: 600;
    padding-left: 0;
}

.challenge h3::before {
    display: none;
}

.challenge p {
    color: var(--text-dark);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.challenge p:last-child {
    margin-bottom: 0;
}

.metadata {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 2.5rem 0;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 8px;
}

.metadata-item {
    font-size: 0.9375rem;
}

.metadata-item strong {
    display: block;
    color: var(--text-medium);
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.metadata-item span {
    color: var(--text-dark);
    font-size: 1rem;
}

.key-insight {
    background: var(--success-light);
    border-left: 4px solid var(--success);
    padding: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    border-radius: 6px;
    font-size: 1.0625rem;
    color: var(--text-dark);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.impact-item {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: all 0.2s ease;
}

.impact-item:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.impact-item h4 {
    color: var(--primary);
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.impact-item ul {
    padding-left: 1.25rem;
}

/* Design Artifacts - Visual Portfolio Elements */
.design-artifact {
    margin: 3rem 0;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.diagram-title {
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-medium);
    margin-bottom: 2rem;
    text-align: center;
}

/* Interaction Flow Diagram */
.interaction-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 2rem 0;
    flex-wrap: wrap;
    gap: 1rem;
}

.flow-item {
    flex: 1;
    min-width: 140px;
    text-align: center;
    padding: 1.5rem 1rem;
    background: white;
    border-radius: 8px;
    border: 2px solid var(--border);
    transition: all 0.2s ease;
}

.flow-item:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.flow-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.flow-label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.flow-desc {
    font-size: 0.875rem;
    color: var(--text-medium);
    line-height: 1.4;
}

.flow-arrow {
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: bold;
    padding: 0 0.5rem;
}

/* Platform Integration Diagram */
.platform-diagram {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 2rem 0;
}

.capability-box {
    padding: 1rem;
    background: white;
    border: 1px solid var(--border);
    border-radius: 6px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-medium);
    transition: all 0.2s ease;
}

.capability-box:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.05);
}

.ai-core {
    grid-column: 1 / -1;
    background: var(--primary);
    color: white;
    padding: 1.5rem;
    font-weight: 600;
    margin-top: 0.5rem;
    position: relative;
}

.ai-core::before {
    content: "";
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-bottom: 10px solid var(--primary);
}

/* Stakeholder Map */
.stakeholder-map {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    margin: 2rem 0;
}

.stakeholder-level {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    width: 100%;
}

.stakeholder-group {
    padding: 1rem 1.5rem;
    background: white;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-weight: 500;
    color: var(--text-dark);
    text-align: center;
    min-width: 120px;
}

.stakeholder-group.primary {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.stakeholder-connector {
    width: 2px;
    height: 30px;
    background: var(--border);
    margin: -1rem auto;
}

/* Framework Visualization */
.framework-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin: 2rem 0;
}

.framework-principle {
    padding: 1.5rem;
    background: white;
    border-left: 4px solid var(--primary);
    border-radius: 4px;
}

.framework-principle h5 {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.framework-principle p {
    font-size: 0.875rem;
    color: var(--text-medium);
    margin: 0;
}

/* Journey Progression */
.journey-progression {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    margin: 2rem 0;
    padding: 1rem 0;
}

.journey-progression::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #e5e7eb 0%, var(--primary) 100%);
    z-index: 0;
}

.journey-stage {
    position: relative;
    z-index: 1;
    background: white;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    text-align: center;
    min-width: 100px;
}

.journey-stage.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.journey-stage span {
    display: block;
    font-size: 0.75rem;
    margin-top: 0.25rem;
    opacity: 0.8;
}

/* Strategy Timeline - for Process Manager case study */
.strategy-timeline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    margin: 2rem 0;
    padding: 1rem 0;
    gap: 1rem;
}

.strategy-timeline::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 3px;
    background: linear-gradient(90deg, var(--border) 0%, var(--primary) 50%, var(--success) 100%);
    z-index: 0;
    border-radius: 2px;
}

.timeline-phase {
    position: relative;
    z-index: 1;
    background: white;
    padding: 1.25rem 1.5rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    text-align: center;
    min-width: 150px;
    flex: 1;
    max-width: 200px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.timeline-phase:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.timeline-phase.current {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 4px 15px rgba(0, 85, 184, 0.25);
    transform: scale(1.05);
}

.timeline-phase.current:hover {
    transform: scale(1.05) translateY(-3px);
}

.phase-title {
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
}

.phase-desc {
    font-size: 0.875rem;
    opacity: 0.9;
    line-height: 1.4;
}

.caption {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-medium);
    font-style: italic;
    margin-top: 1.5rem;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--success-light);
    color: var(--success);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin: 1rem 0;
}

.status-badge::before {
    content: "●";
    font-size: 0.75rem;
}

.reflection-section {
    background: var(--accent-light);
    padding: 2rem;
    border-radius: 8px;
    margin-top: 2rem;
    border-left: 4px solid var(--accent);
}

.reflection-section h3 {
    margin-top: 0;
    color: var(--accent);
}

.reflection-section p {
    margin-bottom: 1.5rem;
}

.reflection-section strong {
    color: var(--text-dark);
    font-weight: 600;
}

/* Case Navigation */
.case-navigation {
    padding: 2rem 0;
    border-top: 1px solid var(--border);
}

.case-navigation > div {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Footer */
.footer {
    background: var(--bg-light);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border);
    margin-top: 4rem;
}

.footer p {
    color: var(--text-medium);
    margin: 0;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
    }
    
    .nav-link {
        font-size: 0.9rem;
    }
    
    .philosophy-grid {
        grid-template-columns: 1fr;
    }
    
    .work-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-links {
        flex-direction: column;
    }
    
    .case-tags {
        justify-content: flex-start;
    }
    
    /* Visual diagrams mobile adjustments */
    .interaction-flow {
        flex-direction: column;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
        padding: 0.5rem 0;
    }
    
    .platform-diagram {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .framework-grid {
        grid-template-columns: 1fr;
    }
    
    .journey-progression {
        flex-direction: column;
        gap: 1rem;
    }
    
    .journey-progression::before {
        display: none;
    }
    
    .strategy-timeline {
        flex-direction: column;
        gap: 1rem;
    }
    
    .strategy-timeline::before {
        display: none;
    }
    
    .stakeholder-map .stakeholder-level {
        flex-direction: column;
        gap: 1rem;
    }
    
    .case-navigation > div {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 1rem;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    .hero {
        padding: 2rem 0;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .metadata {
        gap: 1rem;
        padding: 1.5rem;
    }
    
    .case-study-preview {
        padding: 1.5rem;
    }
}