/* ============================================
   Isaac Vergara - Portfolio Styles
   Modern, Professional Quantitative Finance Theme
   ============================================ */

/* CSS Variables */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --accent: #06b6d4;
    --accent-light: #22d3ee;

    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border: #334155;
    --border-light: #475569;

    --success: #10b981;
    --warning: #f59e0b;

    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --gradient-bg: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);

    --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);
    --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.15);

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent);
}

.highlight {
    color: var(--accent);
    font-weight: 500;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: var(--shadow-lg);
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 100px 1.5rem 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-greeting {
    color: var(--accent);
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.hero-name {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: 1.5rem;
    color: var(--primary-light);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.hero-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 550px;
    margin-bottom: 2rem;
}

.hero-stats {
    display: flex;
    gap: 2.5rem;
    margin-bottom: 2rem;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.5);
    color: white;
}

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary);
    color: var(--text-primary);
}

/* Profile Card */
.hero-visual {
    display: flex;
    justify-content: center;
}

.profile-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    max-width: 280px;
}

.profile-image {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--border);
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.profile-card:hover .profile-image {
    border-color: var(--primary);
    transform: scale(1.02);
}

.profile-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.profile-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.profile-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.profile-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: 50%;
    color: var(--text-secondary);
    transition: var(--transition);
}

.profile-links a:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.7; }
    50% { transform: translateX(-50%) translateY(-5px); opacity: 1; }
}

/* ============================================
   Sections
   ============================================ */
.section {
    padding: 100px 0;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-title {
    font-size: 2.25rem;
    text-align: center;
    margin-bottom: 3.5rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

/* ============================================
   About Section
   ============================================ */
.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    font-size: 1.05rem;
}

.about-text strong {
    color: var(--text-primary);
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.highlight-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: var(--transition);
}

.highlight-card:hover {
    border-color: var(--primary);
    transform: translateX(5px);
}

.highlight-card i {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.highlight-card h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.highlight-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0.25rem 0;
}

/* ============================================
   Experience Timeline
   ============================================ */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding-left: 40px;
    margin-bottom: 3rem;
}

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

.timeline-marker {
    position: absolute;
    left: -6px;
    top: 0;
    width: 14px;
    height: 14px;
    background: var(--bg-primary);
    border: 3px solid var(--primary);
    border-radius: 50%;
    transition: var(--transition);
}

.timeline-item:hover .timeline-marker {
    background: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: var(--transition);
}

.timeline-item:hover .timeline-content {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.timeline-header {
    margin-bottom: 1rem;
}

.timeline-header h3 {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.timeline-header .company {
    color: var(--accent);
    font-weight: 500;
    display: block;
}

.timeline-header .date {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-family: 'JetBrains Mono', monospace;
}

.timeline-content ul {
    list-style: none;
    margin-bottom: 1rem;
}

.timeline-content li {
    color: var(--text-secondary);
    padding-left: 1.25rem;
    position: relative;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.timeline-content li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

/* Tags */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-light);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

/* ============================================
   Research Section
   ============================================ */
.research-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.research-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: var(--transition);
    position: relative;
}

.research-card:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.research-card.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(6, 182, 212, 0.05) 100%);
    border-color: var(--primary);
}

.research-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.research-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
    padding-right: 70px;
}

.research-card.featured h3 {
    font-size: 1.3rem;
}

.research-venue {
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.research-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.research-highlights {
    list-style: none;
    margin-bottom: 1rem;
}

.research-highlights li {
    color: var(--text-secondary);
    padding-left: 1.25rem;
    position: relative;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.research-highlights li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
}

.research-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-light);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.research-link:hover {
    color: var(--accent);
}

.research-link i {
    transition: transform 0.3s ease;
}

.research-link:hover i {
    transform: translateX(4px);
}

/* ============================================
   Projects Grid
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    display: block;
}

.project-card:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.project-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
}

.project-icon i {
    font-size: 1.25rem;
    color: var(--primary-light);
}

.project-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.project-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    font-weight: 500;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.project-link:hover {
    color: var(--primary-light);
}

/* ============================================
   Skills Section
   ============================================ */
.skills-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
}

.skill-category h3 {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.skill-category h3 i {
    color: var(--accent);
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.skill-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.skill-name {
    color: var(--text-secondary);
}

.skill-level {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
}

.skill-level.expert {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.skill-level.advanced {
    background: rgba(37, 99, 235, 0.15);
    color: var(--primary-light);
}

.skill-level.intermediate {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tags span {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    transition: var(--transition);
}

.skill-tags span:hover {
    background: var(--primary);
    color: white;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.contact-text {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
}

.contact-methods {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.contact-card {
    flex: 0 1 calc(50% - 0.5rem);
    min-width: 240px;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    transition: var(--transition);
    color: var(--text-secondary);
}

.contact-card:hover {
    border-color: var(--primary);
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.contact-card i {
    font-size: 1.25rem;
    color: var(--accent);
}

.contact-card span {
    font-size: 0.9rem;
}

.contact-cta {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

.footer-links a {
    color: var(--text-muted);
    font-size: 1.1rem;
    transition: var(--transition);
}

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

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

    .hero-description {
        margin: 0 auto 2rem;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-highlights {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .highlight-card {
        flex: 1;
        min-width: 200px;
    }

    .research-grid {
        grid-template-columns: 1fr;
    }

    .research-card.featured {
        grid-column: span 1;
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .skills-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        border-bottom: 1px solid var(--border);
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-name {
        font-size: 2.5rem;
    }

    .hero-title {
        font-size: 1.25rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .stat {
        flex-direction: row;
        gap: 0.5rem;
        align-items: center;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .contact-methods .contact-card {
        flex: 1 1 100%;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .timeline::before {
        left: 0;
    }

    .timeline-item {
        padding-left: 30px;
    }

    .timeline-marker {
        left: -6px;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 60px 0;
    }

    .hero {
        padding: 80px 1rem 40px;
    }

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

    .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-cta {
        flex-direction: column;
    }

    .about-highlights {
        flex-direction: column;
    }

    .highlight-card {
        min-width: auto;
    }

    .research-card h3 {
        padding-right: 0;
    }

    .research-badge {
        position: static;
        display: inline-block;
        margin-bottom: 0.75rem;
    }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-text > * {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.hero-greeting { animation-delay: 0.1s; }
.hero-name { animation-delay: 0.2s; }
.hero-title { animation-delay: 0.3s; }
.hero-description { animation-delay: 0.4s; }
.hero-stats { animation-delay: 0.5s; }
.hero-cta { animation-delay: 0.6s; }

.hero-visual {
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.4s;
    opacity: 0;
}

/* Scroll reveal */
.section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Beyond Work / Personal Section
   ============================================ */
.beyond-work {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.subsection-title {
    font-size: 0.8rem;
    margin-bottom: 1.25rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 600;
}

.bw-row {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    padding: 0.6rem 0;
    border-bottom: 1px dashed var(--border);
    font-size: 0.95rem;
    line-height: 1.6;
}

.bw-row:last-child {
    border-bottom: none;
}

.bw-label {
    flex: 0 0 110px;
    color: var(--accent);
    font-weight: 500;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.bw-label i {
    width: 14px;
    text-align: center;
    color: var(--accent);
}

.bw-content {
    color: var(--text-secondary);
    flex: 1;
}

.bw-content em {
    color: var(--text-primary);
    font-style: italic;
    font-weight: 500;
}

.bw-by {
    color: var(--text-muted);
    font-size: 0.9em;
}

.bw-sep {
    color: var(--border-light);
    margin: 0 0.5rem;
}

.bw-content i {
    color: var(--accent-light);
    font-size: 0.85em;
    margin-right: 0.15rem;
}

@media (max-width: 600px) {
    .bw-row {
        flex-direction: column;
        gap: 0.35rem;
    }
    .bw-label {
        flex: none;
    }
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 1.5rem auto 3rem;
    font-size: 1rem;
}

.personal-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    align-items: start;
}

.personal-card-unified {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 0.5rem 1.75rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.personal-card-unified::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
}

.personal-card-unified:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.personal-card-unified:hover::before {
    opacity: 1;
}

.personal-section {
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--border);
}

.personal-section:last-child {
    border-bottom: none;
}

.personal-section-header {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 0.85rem;
}

.personal-section-header i {
    font-size: 0.95rem;
    color: var(--accent);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(6, 182, 212, 0.1);
    border-radius: var(--radius-sm);
}

.personal-section-header h4 {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin: 0;
    font-weight: 600;
}

.personal-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.personal-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
}

.personal-card:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.personal-card:hover::before {
    opacity: 1;
}

.personal-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.personal-header i {
    font-size: 1.25rem;
    color: var(--accent);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(6, 182, 212, 0.1);
    border-radius: var(--radius-md);
}

.personal-header h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin: 0;
}

.personal-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.personal-list li {
    padding-left: 1rem;
    border-left: 2px solid var(--border-light);
    transition: var(--transition);
}

.personal-list li:hover {
    border-left-color: var(--accent);
}

.personal-list .item-title {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
}

.personal-list .item-meta {
    display: block;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 0.15rem;
}

.personal-vibe {
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.personal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.personal-tags span {
    background: rgba(37, 99, 235, 0.12);
    color: var(--primary-light);
    border: 1px solid rgba(37, 99, 235, 0.25);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 500;
}

.hobbies-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.hobby-chip {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.7rem 0.85rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.hobby-chip:hover {
    border-color: var(--accent);
    transform: translateX(3px);
}

.hobby-chip i {
    color: var(--accent-light);
    font-size: 0.95rem;
    width: 20px;
    text-align: center;
}

.hobby-chip span {
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
}

.personal-motto {
    position: relative;
    max-width: 720px;
    margin: 4rem auto 0;
    padding: 2.25rem 2.5rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.06), rgba(6, 182, 212, 0.06));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--accent);
}

.personal-motto .motto-mark {
    position: absolute;
    top: 1rem;
    left: 1.25rem;
    font-size: 1.5rem;
    color: var(--accent);
    opacity: 0.3;
}

.personal-motto .motto-quote {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    font-style: italic;
    color: var(--text-primary);
    letter-spacing: 0.02em;
    margin: 0 0 0.75rem;
}

.personal-motto .motto-translation {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0 0 1rem;
}

.personal-motto .motto-attribution {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-style: normal;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

@media (max-width: 768px) {
    .hobbies-grid {
        grid-template-columns: 1fr;
    }
    .section-subtitle {
        font-size: 0.95rem;
    }
    .personal-motto {
        padding: 1.75rem 1.5rem;
        margin-top: 2.5rem;
    }
    .personal-motto .motto-quote {
        font-size: 1.2rem;
    }
}