/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    font-family: var(--font-primary);
}

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

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-text-muted);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.btn-icon {
    background: transparent;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast);
}

.btn-icon:hover {
    background-color: var(--color-surface);
}

/* Tilt Card */
.tilt-card {
    will-change: transform;
    transition: transform var(--transition-fast);
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--color-surface);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 900;
    box-shadow: var(--glass-shadow);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-5px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: center;
    padding-top: 70px;
    position: relative;
}

.hero-bg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.6;
    pointer-events: none;
}

.hero-content {
    max-width: 650px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--color-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: var(--space-6);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-accent);
}

.hero-title {
    font-size: clamp(1.8rem, 5.2vw, 4rem);
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

.name-title {
    white-space: nowrap;
}

.block-reveal {
    display: inline-block;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-8);
    max-width: 540px;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.image-wrapper {
    position: relative;
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--glass-shadow);
}

.image-wrapper img {
    width: 100%;
    height: auto;
    object-fit: cover;
    aspect-ratio: 4/5;
}

.decoration-glow {
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--color-primary) 0%, transparent 70%);
    opacity: 0.3;
    border-radius: 50%;
    filter: blur(30px);
    z-index: -1;
}

/* Professional Identity */
.identity {
    padding: var(--space-8) 0;
}
.identity-box {
    padding: var(--space-8);
    text-align: center;
    border-left: 4px solid var(--color-accent);
}
.identity-quote {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 400;
    color: var(--color-text);
    font-style: italic;
    line-height: 1.4;
}

/* Conceptual Dashboard */
.conceptual-dashboard {
    padding: var(--space-12) 0;
}
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-8);
}
.dash-card {
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}
.dash-flow {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 15px;
}
.flow-item {
    background: var(--color-bg-alt);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-normal);
}
.flow-item.active {
    background: rgba(96, 165, 250, 0.1);
    border-color: var(--color-accent);
    color: var(--color-accent);
    box-shadow: 0 0 15px rgba(96, 165, 250, 0.2);
}
.flow-arrow {
    color: var(--color-text-muted);
}
.dash-chart {
    gap: 20px;
}
.chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    height: 100px;
    width: 100%;
    justify-content: center;
}
.chart-bars .bar {
    width: 24px;
    background: var(--color-text-muted);
    border-radius: 4px 4px 0 0;
    transition: height 1s ease, background 0.3s ease;
    opacity: 0.5;
}
.chart-bars .bar:hover {
    background: var(--color-accent);
    opacity: 1;
}
.chart-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Case Studies */
.project-grid {
    display: grid;
    gap: var(--space-8);
}
.case-study {
    display: grid;
    grid-template-columns: 45% 55%;
    gap: var(--space-4);
    overflow: hidden;
    align-items: center;
}
.case-study .project-image {
    padding: var(--space-4);
}
.case-study .project-image img {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: cover;
    border-radius: var(--radius-md);
}
.case-study .project-content {
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.case-study h3 {
    font-size: 2rem;
    margin-bottom: var(--space-6);
}
.case-story {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}
.story-block {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.story-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.story-block p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* Timeline */
.timeline-section {
    padding: var(--space-16) 0;
}
.timeline-wrapper {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-8) 0;
}
.timeline-line {
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-accent) 0%, transparent 100%);
    opacity: 0.3;
}
.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: var(--space-12);
}
.timeline-item:last-child {
    margin-bottom: 0;
}
.timeline-dot {
    position: absolute;
    left: 33px;
    top: 20px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-accent);
    box-shadow: 0 0 0 4px var(--color-bg), 0 0 0 6px var(--color-accent);
}
.timeline-content {
    padding: var(--space-6);
}
.timeline-date {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--space-2);
}
.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-1);
}
.timeline-meta {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
    font-weight: 500;
}
.timeline-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: var(--space-4);
}
.timeline-skills span {
    padding: 4px 12px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);
    font-size: 0.8rem;
    color: var(--color-text);
}

body.theme-light .timeline-skills span {
    background: rgba(0,0,0,0.03);
}

/* Contact */
.contact-wrapper {
    padding: var(--space-12);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}
.contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.contact-info p {
    margin-bottom: var(--space-8);
    color: var(--color-text-muted);
    font-size: 1.125rem;
}
.contact-methods {
    display: flex;
    gap: var(--space-6);
    flex-wrap: wrap;
    justify-content: center;
}
.contact-method {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    color: var(--color-text);
    font-weight: 500;
    border: 1px solid var(--glass-border);
}
.contact-method:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    box-shadow: var(--glass-shadow);
}

/* Responsive Overrides */
@media (max-width: 992px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 100px;
    }
    .hero-content {
        margin: 0 auto;
    }
    .hero-cta {
        justify-content: center;
    }
    .case-study {
        grid-template-columns: 1fr;
    }
    .case-study .project-image {
        height: auto;
    }
    .case-study .project-image img {
        max-height: 300px;
    }
}
@media (max-width: 768px) {
    .timeline-line {
        left: 20px;
    }
    .timeline-dot {
        left: 13px;
    }
    .timeline-item {
        padding-left: 50px;
    }
    .contact-wrapper {
        padding: var(--space-6);
    }
    .contact-methods {
        flex-direction: column;
        width: 100%;
    }
    .selector-grid, .cv-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
}

/* Nav links styling */
.nav-links {
    display: flex;
    gap: var(--space-6);
    align-items: center;
}
.nav-links a {
    color: var(--color-text-muted);
    font-weight: 500;
    transition: color var(--transition-fast);
}
.nav-links a:hover {
    color: var(--color-accent);
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* simple hidden for mobile main menu for simplicity */
    }
}

/* Career Path Selector Styling */
.selector-wrapper {
    margin-top: var(--space-8);
    margin-bottom: var(--space-8);
    text-align: left;
}
.selector-instruction {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.selector-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
    max-width: 650px;
}
.selector-card {
    padding: var(--space-6);
    cursor: pointer;
    text-align: left;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-spring);
    position: relative;
    background: var(--color-surface);
}
.selector-card:hover {
    transform: translateY(-5px) scale(1.02);
    border-color: var(--color-accent);
    box-shadow: 0 12px 24px rgba(96, 165, 250, 0.15);
}
.selector-icon {
    font-size: 2rem;
    margin-bottom: var(--space-2);
}
.selector-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-2);
}
.selector-focus-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: var(--space-3);
}
.selector-focus-list span {
    font-size: 0.75rem;
    padding: 2px 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-pill);
    color: var(--color-text-muted);
}
body.theme-light .selector-focus-list span {
    background: rgba(0, 0, 0, 0.05);
}

/* Skills section and learning badges */
.skills-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-6);
}
.skills-block {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}
.skills-category-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-text);
    border-bottom: 2px solid var(--glass-border);
    padding-bottom: 6px;
}
.skills-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}
.skill-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    border: 1px solid var(--glass-border);
    transition: transform var(--transition-fast);
}
.skill-item:hover {
    transform: translateX(4px);
}
.skill-icon {
    font-size: 1.25rem;
}
.skill-name {
    font-weight: 500;
}
.skill-info {
    display: flex;
    flex-direction: column;
}
.learning-badge {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(234, 179, 8, 0.1);
    border: 1px solid #eab308;
    color: #eab308;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 4px;
    width: fit-content;
}
.skill-item.learning {
    border-left: 3px solid #eab308;
}

/* Experience styling updates */
.experience-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    margin-top: var(--space-8);
}
.experience-card {
    padding: var(--space-6);
    background: var(--color-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
}
.exp-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}
.exp-company {
    font-weight: 600;
    color: var(--color-text);
}
.exp-date {
    font-size: 0.85rem;
    color: var(--color-accent);
    font-weight: 500;
}
.exp-bullets {
    padding-left: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.exp-bullets li {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* Timeline status badges */
.timeline-status-badge {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(234, 179, 8, 0.1);
    border: 1px solid #eab308;
    color: #eab308;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: var(--space-2);
}
.timeline-expected {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

/* Evolution Visual Bridge */
.evolution-bridge {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    max-width: 600px;
    margin: var(--space-8) auto 0 auto;
}
.bridge-step {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-accent);
}
.bridge-arrow {
    color: var(--color-text-muted);
}

/* CV Grid */
.cv-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    max-width: 900px;
    margin: var(--space-8) auto 0 auto;
}
.cv-card {
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    background: var(--color-surface);
    display: flex;
    flex-direction: column;
    align-items: center;
}
.cv-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
}
.cv-card h3 {
    font-size: 1.35rem;
    margin-bottom: var(--space-2);
}
.cv-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-6);
}
.cv-actions {
    display: flex;
    gap: var(--space-4);
}
.btn-icon-svg {
    margin-right: 8px;
    vertical-align: middle;
}

/* Highlight Animation keyframes */
.flash-highlight {
    animation: flash-border 1.5s ease-out;
}
@keyframes flash-border {
    0% {
        box-shadow: 0 0 0 3px var(--color-accent);
        transform: scale(1.02);
    }
    50% {
        box-shadow: 0 0 0 6px var(--color-accent);
    }
    100% {
        box-shadow: none;
        transform: scale(1);
    }
}

/* Scroll margin offset for links */
.scroll-margin {
    scroll-margin-top: 80px;
}