/* ===== CSS Variables ===== */
:root {
    /* Colors - Light Theme */
    --color-background: rgba(247, 247, 247, 1);
    --color-surface: rgba(255, 255, 255, 1);
    --color-primary: rgba(16, 16, 16, 1);
    --color-secondary: rgb(60, 60, 60);
    --color-tertiary: rgba(120, 120, 120, 1);
    --color-highlight: rgba(27, 27, 27, .08);
    --color-shadow: rgba(27, 27, 27, .05);
    --color-border: rgba(27, 27, 27, .1);
    --color-accent: #115497;
    
    /* Gradient */
    --color-gradient-1: rgba(247, 247, 247, 0.3);
    --color-gradient-2: rgba(247, 247, 247, 0);

    /* Typography */
    --font-family: "Figtree", system-ui, -apple-system, sans-serif;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-xs: 0.75rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;

    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Layout */
    --header-height: 4rem;
    --container-width: 1200px;
}

/* Dark Theme */
@media (prefers-color-scheme: dark) {
    :root {
        --color-background: rgba(27, 27, 27, 1);
        --color-surface: rgba(35, 35, 35, 1);
        --color-primary: rgba(247, 247, 247, 1);
        --color-secondary: rgba(190, 190, 190, 1);
        --color-tertiary: rgba(140, 140, 140, 1);
        --color-highlight: rgba(247, 247, 247, .08);
        --color-shadow: rgba(0, 0, 0, .2);
        --color-border: rgba(247, 247, 247, .1);
        --color-accent: #6cadee;
        --color-gradient-1: rgba(27, 27, 27, 0.3);
        --color-gradient-2: rgba(27, 27, 27, 0);
    }
}

body.dark-theme {
    --color-background: rgba(27, 27, 27, 1);
    --color-surface: rgba(35, 35, 35, 1);
    --color-primary: rgba(247, 247, 247, 1);
    --color-secondary: rgba(190, 190, 190, 1);
    --color-tertiary: rgba(140, 140, 140, 1);
    --color-highlight: rgba(247, 247, 247, .08);
    --color-shadow: rgba(0, 0, 0, .2);
    --color-border: rgba(247, 247, 247, .1);
    --color-accent: #6cadee;
    --color-gradient-1: rgba(27, 27, 27, 0.3);
    --color-gradient-2: rgba(27, 27, 27, 0);
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--color-primary);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.2;
    color: var(--color-primary);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-base);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===== Layout ===== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-background);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.header__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: var(--spacing-md);
}

.header__logo {
    display: inline-flex;
    align-items: center;
    color: var(--color-secondary);
    transition: color var(--transition-base);
    flex-shrink: 0;
}

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

.header__title {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity var(--transition-base), transform var(--transition-base);
    white-space: nowrap;
    overflow: hidden;
}

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

.header__name {
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
}

.header__separator {
    color: var(--color-tertiary);
    font-weight: var(--font-weight-normal);
}

.header__section {
    color: var(--color-accent);
    font-weight: var(--font-weight-medium);
}

@media (max-width: 640px) {
    .header__title {
        display: none;
    }
}

.logo-svg {
    width: 2rem;
    height: 2rem;
    fill: currentColor;
}

.header__actions {
    display: flex;
    gap: var(--spacing-xs);
}

.home-btn,
.theme-toggle,
.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    color: var(--color-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 1.125rem;
    position: relative;
    overflow: hidden;
}

.home-btn::before,
.theme-toggle::before,
.download-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-surface);
    border-radius: var(--radius-full);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: -1;
}

.home-btn:hover,
.theme-toggle:hover,
.download-btn:hover {
    color: var(--color-accent);
    transform: scale(1.1);
}

.home-btn:hover::before,
.theme-toggle:hover::before,
.download-btn:hover::before {
    opacity: 1;
}

.home-btn:active,
.theme-toggle:active,
.download-btn:active {
    transform: scale(0.95);
}

/* ===== Main Content ===== */
.main {
    min-height: calc(100vh - var(--header-height));
    padding: var(--spacing-xl) 0;
}

/* ===== Hero Section ===== */
.hero {
    padding: var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-xl);
}

.hero__content {
    display: grid;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .hero__content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-2xl);
    }
}

.hero__profile {
    text-align: center;
}

.hero__image-wrapper {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 4px solid var(--color-border);
    background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
    box-shadow: 0 8px 24px var(--color-shadow);
}

.hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero__name {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
}

.hero__name .highlight {
    color: var(--color-accent);
}

.hero__title {
    font-size: var(--font-size-lg);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-medium);
}

.hero__location {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-highlight);
    border-radius: var(--radius-full);
    color: var(--color-secondary);
    font-size: var(--font-size-sm);
}

.hero__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    justify-content: center;
    width: 100%;
}

@media (min-width: 640px) {
    .hero__info {
        gap: var(--spacing-lg);
    }
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

@media (min-width: 640px) {
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-background) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-secondary);
    transition: all var(--transition-base);
    position: relative;
    font-size: var(--font-size-sm);
}

@media (min-width: 640px) {
    .contact-item {
        padding: var(--spacing-md);
        font-size: var(--font-size-base);
    }
}

.contact-item:hover {
    background: var(--color-accent);
    color: var(--color-background);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--color-shadow);
    border-color: var(--color-accent);
}

.contact-item:hover i {
    color: var(--color-background);
}

.contact-item i {
    font-size: 1.125rem;
    color: var(--color-accent);
    flex-shrink: 0;
}

@media (min-width: 640px) {
    .contact-item i {
        font-size: 1.25rem;
    }
}

.social-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

@media (min-width: 640px) {
    .social-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 768px) {
    .social-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

.social-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-background) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-secondary);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

@media (min-width: 640px) {
    .social-link {
        padding: var(--spacing-md);
    }
}

.social-link::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-accent);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 0;
}

.social-link:hover::after {
    opacity: 1;
}

.social-link:hover {
    color: var(--color-background);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--color-shadow);
    border-color: var(--color-accent);
}

.social-link i {
    font-size: 1.125rem;
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

@media (min-width: 640px) {
    .social-link i {
        font-size: 1.25rem;
    }
}

.social-link span {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    position: relative;
    z-index: 1;
    text-align: center;
}

@media (min-width: 640px) {
    .social-link span {
        font-size: var(--font-size-sm);
    }
}

.social-link-arrow {
    display: none;
}

/* ===== Section Styles ===== */
.section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
}

@media (min-width: 640px) {
    .section {
        padding: var(--spacing-xl) 0;
        margin-bottom: var(--spacing-2xl);
    }
}

.section__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    letter-spacing: -0.02em;
    position: relative;
    padding-left: var(--spacing-md);
}

@media (min-width: 640px) {
    .section__title {
        font-size: var(--font-size-3xl);
        margin-bottom: var(--spacing-lg);
    }
}

.section__title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 2rem;
    background-color: var(--color-accent);
    border-radius: var(--radius-sm);
}

.section__content {
    padding-left: 0;
}

@media (min-width: 640px) {
    .section__content {
        padding-left: var(--spacing-md);
    }
}

/* ===== Profile Section ===== */
.profile__text {
    font-size: var(--font-size-sm);
    line-height: 1.7;
    color: var(--color-secondary);
    max-width: 100%;
}

@media (min-width: 640px) {
    .profile__text {
        font-size: var(--font-size-base);
        line-height: 1.8;
    }
}

@media (min-width: 1024px) {
    .profile__text {
        font-size: var(--font-size-lg);
        max-width: 800px;
    }
}

/* ===== Timeline Styles ===== */
.timeline {
    position: relative;
    padding-left: var(--spacing-xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
}

.timeline__item {
    position: relative;
    padding-bottom: var(--spacing-xl);
}

.timeline__item:last-child {
    padding-bottom: 0;
}

.timeline__marker {
    position: absolute;
    left: calc(-1 * var(--spacing-xl) - 6px);
    top: 0;
    width: 14px;
    height: 14px;
    background-color: var(--color-accent);
    border: 3px solid var(--color-background);
    border-radius: var(--radius-full);
    box-shadow: 0 0 0 4px var(--color-highlight);
}

.timeline__content {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
}

.timeline__content:hover {
    box-shadow: 0 4px 12px var(--color-shadow);
    transform: translateY(-2px);
}

.timeline__period {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-background);
    background-color: var(--color-accent);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

@media (min-width: 640px) {
    .timeline__period {
        font-size: var(--font-size-sm);
    }
}

.timeline__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.timeline__subtitle {
    font-size: var(--font-size-base);
    color: var(--color-accent);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
}

.timeline__location {
    font-size: var(--font-size-sm);
    color: var(--color-tertiary);
    margin-bottom: var(--spacing-sm);
}

.timeline__description {
    font-size: var(--font-size-base);
    color: var(--color-secondary);
    line-height: 1.7;
}

/* ===== Skills Grid ===== */
.skills-grid {
    display: grid;
    gap: var(--spacing-md);
}

@media (min-width: 640px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .skills-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-md);
    }
}

.skill-category {
    position: relative;
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-background) 100%);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-accent);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    background: var(--color-accent);
    opacity: 0.03;
    border-radius: 50%;
    transform: translate(30%, -30%);
    transition: transform var(--transition-base);
}

.skill-category:hover {
    box-shadow: 0 8px 24px var(--color-shadow);
    transform: translateY(-4px);
    border-top-width: 4px;
}

.skill-category:hover::before {
    transform: translate(20%, -20%) scale(1.3);
}

.skill-category__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

@media (min-width: 640px) {
    .skill-category__title {
        font-size: var(--font-size-lg);
    }
}

.skill-category__title::before {
    content: '▪';
    color: var(--color-accent);
    font-size: 1.5em;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.skill-item {
    position: relative;
    padding-left: var(--spacing-md);
    color: var(--color-secondary);
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
    line-height: 1.6;
}

.skill-item:hover {
    color: var(--color-primary);
    padding-left: var(--spacing-lg);
}

.skill-item::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: var(--font-weight-semibold);
}

/* ===== Interests Grid ===== */
.interests-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media (min-width: 640px) {
    .interests-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .interests-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

.interest-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-lg);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    text-align: center;
}

.interest-item:hover {
    background-color: var(--color-accent);
    color: var(--color-background);
    transform: scale(1.05);
}

.interest-item i {
    font-size: 2rem;
}

.interest-item span {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

/* ===== Links Grid ===== */
.links-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

@media (min-width: 480px) {
    .links-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-md);
    }
}

@media (min-width: 768px) {
    .links-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .links-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

.link-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-background) 100%);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-accent);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    text-align: center;
    position: relative;
    min-height: 100px;
}

@media (min-width: 640px) {
    .link-card {
        padding: var(--spacing-lg);
        gap: var(--spacing-sm);
        min-height: 120px;
    }
}

@media (min-width: 1024px) {
    .link-card {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
}

.link-card:hover {
    background: var(--color-accent);
    color: var(--color-background);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--color-shadow);
    border-color: var(--color-accent);
    border-top-width: 4px;
}

.link-card i {
    font-size: 2.5rem;
}

.link-card span {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
}

/* ===== Certifications Grid ===== */
.cert-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 640px) {
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

.cert-item {
    position: relative;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-background) 100%);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    overflow: hidden;
}

.cert-item::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: var(--color-accent);
    opacity: 0.03;
    border-radius: 50%;
    transform: translate(30%, -30%);
    transition: transform var(--transition-base);
}

.cert-item:hover {
    box-shadow: 0 8px 24px var(--color-shadow);
    transform: translateY(-4px);
    border-left-width: 6px;
}

.cert-item:hover::before {
    transform: translate(20%, -20%) scale(1.5);
}

.cert-item i {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    display: block;
}

.cert-item h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
}

.cert-item__org {
    font-size: var(--font-size-base);
    color: var(--color-accent);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.cert-item__org::before {
    content: '▪';
    font-size: 1.5em;
    color: var(--color-accent);
}

.cert-item__date {
    font-size: var(--font-size-sm);
    color: var(--color-tertiary);
    display: block;
    margin-top: var(--spacing-xs);
}

/* ===== Publications ===== */
.publication-item {
    position: relative;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-background) 100%);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-accent);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    overflow: hidden;
}

.publication-item::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.publication-item:hover {
    box-shadow: 0 8px 24px var(--color-shadow);
    transform: translateY(-4px);
    border-top-width: 4px;
}

.publication-item:hover::before {
    transform: scaleX(1);
}

.publication-item i {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    display: block;
    opacity: 0.8;
}

.publication-item h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
}

.publication-item__authors {
    font-size: var(--font-size-base);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-medium);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.publication-item__authors::before {
    content: '▪';
    font-size: 1.2em;
    color: var(--color-accent);
}

.publication-item__venue {
    font-size: var(--font-size-sm);
    color: var(--color-tertiary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    line-height: 1.6;
}

.publication-item__venue::before {
    content: '▪';
    font-size: 1.2em;
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--color-accent);
}

.publication-item__link {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.publication-item__link a {
    color: var(--color-accent);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.publication-item__link a:hover {
    background-color: var(--color-accent);
    color: var(--color-background);
    border-color: var(--color-accent);
    transform: translateX(4px);
}

.publication-item__link i {
    font-size: 1.25rem;
    margin: 0;
}

/* ===== Hero Subtitle ===== */
.hero__subtitle {
    font-size: var(--font-size-base);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-normal);
}

/* ===== Footer ===== */
.footer {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-border);
    background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
}

.footer__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: center;
}

@media (min-width: 640px) {
    .footer__content {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer__text {
    color: var(--color-secondary);
    font-size: var(--font-size-sm);
}

.footer__text a {
    color: var(--color-accent);
    font-weight: var(--font-weight-medium);
}

.footer__text a:hover {
    text-decoration: underline;
}

.footer__back a {
    color: var(--color-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-base);
}

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

/* ===== Print Styles ===== */
@media print {
    @page {
        size: A4;
        margin: 1cm;
    }

    * {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    body {
        font-size: 9pt;
        line-height: 1.3;
        background: white !important;
        color: black !important;
    }

    .header,
    .footer,
    .header__title,
    .theme-toggle,
    .download-btn {
        display: none !important;
    }

    .main {
        padding: 0 !important;
        margin: 0 !important;
        min-height: auto !important;
        background: white !important;
    }

    .container {
        max-width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
        display: block !important;
    }

    /* Create two-column layout for print */
    .section {
        float: left;
        width: 48%;
        margin-right: 2%;
        margin-bottom: 1rem;
        page-break-inside: avoid;
        break-inside: avoid;
    }

    /* Hero Section - Full Width */
    .hero {
        float: none !important;
        width: 100% !important;
        margin-right: 0 !important;
        padding: 0 0 1rem 0;
        margin-bottom: 0.75rem;
        border-bottom: 3px solid #115497;
        page-break-after: avoid;
        clear: both;
    }

    .hero__content {
        display: flex;
        flex-direction: row;
        gap: 1.5rem;
        align-items: flex-start;
    }

    .hero__profile {
        flex: 0 0 30%;
        text-align: left;
    }

    .hero__image-wrapper {
        width: 90px;
        height: 90px;
        margin: 0 0 0.5rem 0;
        border: 2px solid #115497;
        box-shadow: none;
    }

    .hero__name {
        font-size: 18pt;
        font-weight: 700;
        margin-bottom: 0.2rem;
    }

    .hero__title {
        font-size: 10pt;
        font-weight: 500;
        margin-bottom: 0.5rem;
    }

    .hero__subtitle {
        font-size: 8.5pt;
        margin-bottom: 0.5rem;
        line-height: 1.4;
    }

    .hero__location {
        font-size: 8.5pt;
        background: linear-gradient(135deg, #f9f9f9 0%, #f2f2f2 100%);
        padding: 0.3rem 0.5rem;
        border: 1px solid #ddd;
        border-radius: 3px;
        display: inline-flex;
    }

    .hero__location i {
        color: #115497;
    }

    .hero__info {
        flex: 1;
        gap: 0.5rem;
    }

    .contact-grid {
        display: flex;
        flex-direction: column;
        gap: 0.4rem;
        margin-bottom: 0.5rem;
    }

    .contact-item {
        padding: 0.4rem 0.6rem;
        background: linear-gradient(135deg, #f9f9f9 0%, #f2f2f2 100%);
        border: 1px solid #ddd;
        border-left: 2px solid #115497;
        border-radius: 3px;
        font-size: 7.5pt;
        color: black;
    }

    .contact-item i {
        font-size: 10pt;
        color: #115497;
    }

    .social-links {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }

    .social-link {
        flex-direction: row;
        padding: 0.4rem;
        background: linear-gradient(135deg, #f9f9f9 0%, #f2f2f2 100%);
        border: 1px solid #ddd;
        border-top: 2px solid #115497;
        border-radius: 3px;
        font-size: 7.5pt;
        color: black;
    }

    .social-link i {
        font-size: 12pt;
        color: #115497;
    }

    .social-link span {
        font-size: 7.5pt;
    }

    /* Section Styles */
    .section {
        page-break-inside: avoid;
        break-inside: avoid;
        padding: 0;
        margin-bottom: 1rem;
        border-top: none;
        animation: none;
    }

    .section__title {
        font-size: 11pt;
        margin-bottom: 0.5rem;
        padding-bottom: 0.25rem;
        padding-left: 0;
        border-bottom: 2px solid #115497;
        font-weight: 600;
        page-break-after: avoid;
        color: #000;
    }

    .section__title::before {
        display: none;
    }

    .section__content {
        padding-left: 0;
    }

    /* Summary Section - Full Width */
    #profile {
        float: none !important;
        width: 100% !important;
        margin-right: 0 !important;
        clear: both;
    }

    .profile__text {
        font-size: 8.5pt;
        line-height: 1.5;
        color: #333;
        background: linear-gradient(135deg, #f9f9f9 0%, #f2f2f2 100%);
        padding: 0.6rem;
        border: 1px solid #ddd;
        border-left: 3px solid #115497;
        border-radius: 3px;
    }

    /* Left Column Sections */
    #education {
        clear: left;
    }

    #experience {
        float: left;
        width: 48%;
        margin-right: 2%;
    }

    /* Right Column Sections */
    #skills {
        float: right;
        width: 48%;
        margin-right: 0;
    }

    #certifications {
        float: right;
        width: 48%;
        margin-right: 0;
    }

    /* Publications & Links - Full Width */
    #publications-list,
    #publications {
        float: none !important;
        width: 100% !important;
        margin-right: 0 !important;
        clear: both;
    }

    /* Timeline */
    .timeline {
        padding-left: 0.75rem;
    }

    .timeline::before {
        width: 1px;
        background: #115497;
    }

    .timeline__item {
        padding-bottom: 0.5rem;
        page-break-inside: avoid;
        break-inside: avoid;
    }

    .timeline__marker {
        width: 6px;
        height: 6px;
        border: 1.5px solid white;
        left: calc(-0.75rem - 3px);
        box-shadow: none;
        background-color: #115497;
    }

    .timeline__content {
        background: linear-gradient(135deg, #f9f9f9 0%, #f2f2f2 100%);
        border: 1px solid #ddd;
        border-left: 3px solid #115497;
        border-radius: 3px;
        padding: 0.5rem;
        box-shadow: none;
    }

    .timeline__content::before {
        display: none;
    }

    .timeline__content:hover {
        transform: none;
        box-shadow: none;
    }

    .timeline__period {
        font-size: 7pt;
        padding: 0.1rem 0.3rem;
        margin-bottom: 0.3rem;
        background-color: #115497;
        color: white;
    }

    .timeline__title {
        font-size: 9pt;
        font-weight: 600;
        margin-bottom: 0.3rem;
    }

    .timeline__subtitle {
        font-size: 8pt;
        margin-bottom: 0.2rem;
        color: #115497;
    }

    .timeline__location {
        font-size: 7pt;
        margin-bottom: 0.3rem;
        color: #666;
    }

    .timeline__description {
        font-size: 7.5pt;
        line-height: 1.4;
        color: #333;
    }

    /* Skills Grid */
    .skills-grid {
        display: block;
    }

    .skill-category {
        background: linear-gradient(135deg, #f9f9f9 0%, #f2f2f2 100%);
        border: 1px solid #ddd;
        border-top: 3px solid #115497;
        border-radius: 3px;
        padding: 0.5rem;
        margin-bottom: 0.5rem;
        box-shadow: none;
        page-break-inside: avoid;
        break-inside: avoid;
    }

    .skill-category::before {
        display: none;
    }

    .skill-category:hover {
        transform: none;
        box-shadow: none;
        border-top-width: 3px;
    }

    .skill-category__title {
        font-size: 9pt;
        font-weight: 600;
        margin-bottom: 0.4rem;
        color: #000;
    }

    .skill-category__title i {
        font-size: 10pt;
        color: #115497;
    }

    .skill-list {
        gap: 0.2rem;
    }

    .skill-item {
        font-size: 7.5pt;
        padding-left: 0.6rem;
        background: none;
        border: none;
        color: #333;
        line-height: 1.5;
    }

    .skill-item:hover {
        padding-left: 0.6rem;
    }

    .skill-item::before {
        color: #115497;
    }

    /* Certifications */
    .cert-grid {
        display: block;
    }

    .cert-item {
        background: linear-gradient(135deg, #f9f9f9 0%, #f2f2f2 100%);
        border: 1px solid #ddd;
        border-top: 3px solid #115497;
        border-radius: 3px;
        padding: 0.5rem;
        margin-bottom: 0.5rem;
        page-break-inside: avoid;
        break-inside: avoid;
    }

    .cert-item::before {
        display: none;
    }

    .cert-item:hover {
        transform: none;
        box-shadow: none;
    }

    .cert-item i {
        font-size: 10pt;
        color: #115497;
    }

    .cert-item h3 {
        font-size: 8.5pt;
        font-weight: 600;
        color: #000;
    }

    .cert-item p {
        font-size: 7.5pt;
        color: #333;
    }

    .cert-item__org {
        color: #115497 !important;
    }

    .cert-item__date {
        color: #666 !important;
    }

    /* Publications */
    .publication-item {
        background: linear-gradient(135deg, #f9f9f9 0%, #f2f2f2 100%);
        border: 1px solid #ddd;
        border-top: 3px solid #115497;
        border-radius: 3px;
        padding: 0.5rem;
        margin-bottom: 0.5rem;
        page-break-inside: avoid;
        break-inside: avoid;
    }

    .publication-item::before {
        display: none;
    }

    .publication-item:hover {
        transform: none;
        box-shadow: none;
    }

    .publication-item i {
        font-size: 10pt;
        color: #115497;
    }

    .publication-item h3 {
        font-size: 8.5pt;
        font-weight: 600;
        color: #000;
    }

    .publication-item p {
        font-size: 7.5pt;
        color: #333;
    }

    .publication-item__meta {
        color: #666 !important;
    }

    /* Links Grid */
    .links-grid {
        display: grid;
        grid-template-columns: repeat(6, 1fr);
        gap: 0.4rem;
    }

    .link-card {
        flex-direction: column;
        padding: 0.4rem;
        background: linear-gradient(135deg, #f9f9f9 0%, #f2f2f2 100%);
        border: 1px solid #ddd;
        border-top: 2px solid #115497;
        border-radius: 3px;
        gap: 0.2rem;
        justify-content: center;
        align-items: center;
        page-break-inside: avoid;
    }

    .link-card::before {
        display: none;
    }

    .link-card:hover {
        transform: none;
        box-shadow: none;
        background: linear-gradient(135deg, #f9f9f9 0%, #f2f2f2 100%);
        color: black;
    }

    .link-card i {
        font-size: 12pt;
        color: #115497;
    }

    .link-card span {
        font-size: 7pt;
        color: #333;
    }

    /* Clear floats after all sections */
    .main::after {
        content: "";
        display: table;
        clear: both;
    }

    /* Hide interactive elements */
    a[href^="#"],
    .scrolltop {
        display: none !important;
    }

    /* Remove hover effects and transitions */
    * {
        transition: none !important;
        animation: none !important;
    }

    .hero__name .highlight {
        color: #115497;
    }

    /* Page breaks */
    h1, h2, h3 {
        page-break-after: avoid;
        break-after: avoid;
    }

    /* Links */
    a {
        text-decoration: none;
        color: inherit;
    }

    a[href]:after {
        content: none;
    }

    /* Prevent orphans and widows */
    p, li {
        orphans: 3;
        widows: 3;
    }
}

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

.section {
    will-change: transform, opacity;
}

.section--visible {
    animation: fadeIn 0.6s ease-out;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-background);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* ===== Selection ===== */
::selection {
    background-color: var(--color-accent);
    color: var(--color-background);
}