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

:root {
    --navy: #1a2b4a;
    --navy-light: #2d4a7c;
    --blue-accent: #3b82c4;
    --gray-light: #f8f9fa;
    --gray-medium: #6b7280;
    --white: #ffffff;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3 {
    line-height: 1.2;
}

h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--navy);
}

h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

p {
    color: var(--gray-medium);
}

a {
    color: var(--blue-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--navy-light);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(26, 43, 74, 0.88), rgba(26, 43, 74, 0.92)),
                url('images/hero-bg.jpg') center/cover no-repeat;
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.hero-content {
    max-width: 600px;
    margin: 0 auto;
}

.hero-photo {
    margin-bottom: 24px;
}

.photo-placeholder {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 600;
    margin: 0 auto;
    border: 3px solid rgba(255, 255, 255, 0.3);
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.hero .title {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 8px;
    font-weight: 500;
}

.hero .company {
    font-size: 1rem;
    color: var(--blue-accent);
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.hero .tagline {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.75);
    font-style: italic;
}

/* Section Styles */
section {
    padding: 64px 0;
}

section:nth-child(even) {
    background-color: var(--gray-light);
}

/* About Section */
.about p {
    font-size: 1.125rem;
    max-width: 800px;
    margin-bottom: 40px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 32px;
    max-width: 700px;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--blue-accent);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Expertise Section - Carousel */
.carousel-wrapper {
    position: relative;
    padding: 0 48px;
}

.carousel-track {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 8px 0;
}

.carousel-track::-webkit-scrollbar {
    display: none;
}

.expertise-card {
    flex: 0 0 calc(33.333% - 16px);
    min-width: 280px;
    scroll-snap-align: start;
    background: var(--white);
    padding: 32px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.expertise-card h3 {
    color: var(--navy);
    margin-bottom: 12px;
}

.expertise-card p {
    font-size: 0.9375rem;
}

.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--navy);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    z-index: 2;
    opacity: 0.9;
    transition: opacity 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-prev {
    left: 0;
}

.carousel-next {
    right: 0;
}

.carousel-arrow:hover {
    opacity: 1;
}

.carousel-arrow:disabled {
    opacity: 0.3;
    cursor: default;
}

/* Success Stories Section */
.success-stories {
    background: linear-gradient(rgba(26, 43, 74, 0.92), rgba(26, 43, 74, 0.95)),
                url('images/success-bg.jpg') center/cover no-repeat;
    color: var(--white);
}

.success-stories h2 {
    color: var(--white);
    text-align: center;
}

.success-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.success-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: transform 0.3s ease, background 0.3s ease;
}

.success-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.15);
}

.success-metric {
    display: block;
    font-size: 2.75rem;
    font-weight: 700;
    color: var(--blue-accent);
    margin-bottom: 4px;
}

.success-label {
    display: block;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    margin-bottom: 12px;
}

.success-card p {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.5;
}

/* Experience Section - Timeline */
.timeline {
    position: relative;
    padding-left: 32px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--blue-accent);
}

.timeline-item {
    position: relative;
    padding-bottom: 32px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -32px;
    top: 4px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--white);
    border: 3px solid var(--blue-accent);
    z-index: 1;
}

.timeline-content {
    background: var(--white);
    padding: 20px 24px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.timeline-content h3 {
    color: var(--navy);
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.timeline-roles {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.timeline-role-item {
    padding-left: 16px;
    border-left: 2px solid rgba(59, 130, 196, 0.3);
}

.timeline-dates {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.timeline-role {
    color: var(--blue-accent);
    font-size: 0.9375rem;
    font-weight: 500;
}

.timeline-role-summary {
    color: var(--blue-accent);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.timeline-domains {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.domain-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(59, 130, 196, 0.1);
    color: var(--blue-accent);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* Credentials Section */
.credentials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 48px;
}

.credential-group h3 {
    color: var(--navy);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--blue-accent);
}

.credential-group ul {
    list-style: none;
}

.credential-group li {
    padding: 8px 0;
    color: var(--gray-medium);
    font-size: 0.9375rem;
}

.credential-group li strong {
    color: var(--navy);
    font-weight: 500;
}

/* Contact Section */
.contact {
    text-align: center;
}

.contact p {
    font-size: 1.125rem;
    margin-bottom: 24px;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.contact-link {
    display: inline-block;
    padding: 12px 32px;
    background-color: var(--navy);
    color: var(--white);
    border-radius: 6px;
    font-weight: 500;
    transition: background-color 0.2s ease;
}

.contact-link:hover {
    background-color: var(--navy-light);
    color: var(--white);
}

/* Footer */
footer {
    background-color: var(--navy);
    color: rgba(255, 255, 255, 0.6);
    padding: 24px 0;
    text-align: center;
    font-size: 0.875rem;
}

footer p {
    color: inherit;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .photo-placeholder {
        width: 120px;
        height: 120px;
        font-size: 2rem;
    }

    section {
        padding: 48px 0;
    }

    h2 {
        font-size: 1.5rem;
    }

    .stats {
        gap: 24px;
    }

    .stat-value {
        font-size: 1.875rem;
    }

    /* Carousel mobile - 1 card at a time */
    .carousel-wrapper {
        padding: 0 40px;
    }

    .expertise-card {
        flex: 0 0 100%;
        min-width: 0;
    }

    .carousel-prev {
        left: 0;
    }

    .carousel-next {
        right: 0;
    }

    /* Timeline mobile */
    .timeline {
        padding-left: 28px;
    }

    .timeline-marker {
        left: -28px;
    }

    .timeline-content {
        padding: 16px 20px;
    }

    /* Success cards mobile */
    .success-metric {
        font-size: 2.25rem;
    }

    .success-card {
        padding: 24px;
    }

    .contact-links {
        flex-direction: column;
        align-items: center;
    }

    .contact-link {
        width: 100%;
        max-width: 280px;
    }
}

/* Skills Radar Chart */
.skills-radar-section {
    text-align: center;
    padding-top: 0;
}

.skills-radar-container {
    max-width: 500px;
    margin: 0 auto 48px;
    position: relative;
}

#skills-radar {
    width: 100%;
    min-height: 350px;
}

#skills-radar svg {
    width: 100%;
    height: auto;
}

.radar-tooltip {
    position: absolute;
    padding: 8px 12px;
    background: var(--navy);
    color: white;
    border-radius: 4px;
    font-size: 0.875rem;
    pointer-events: none;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.radar-label {
    font-family: 'Inter', sans-serif;
}

/* Radar mobile adjustments */
@media (max-width: 500px) {
    #skills-radar {
        min-height: 300px;
    }

    .radar-label {
        font-size: 10px !important;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

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

    .expertise-card {
        padding: 24px;
    }

    .timeline-content {
        padding: 14px 16px;
    }

    .timeline-role {
        font-size: 0.875rem;
    }

    .success-grid {
        gap: 16px;
    }

    .success-card {
        padding: 20px;
    }

    .success-metric {
        font-size: 2rem;
    }
}