/* 
 * Nevyn Duarte - Personal Site Stylesheet
 * A refined, professional aesthetic for MLE/Quant/DS positioning
 */

:root {
    /* Colors - Dark sophisticated palette */
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-tertiary: #18181b;
    --bg-card: #1c1c1f;

    --text-primary: #fafafa;
    --text-secondary: #d4d4d8;
    --text-tertiary: #a1a1aa;

    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-subtle: rgba(59, 130, 246, 0.1);

    --accent-purple: #a78bfa;
    --accent-purple-hover: #c4b5fd;
    --accent-purple-subtle: rgba(167, 139, 250, 0.1);

    --border: #27272a;
    --border-light: #3f3f46;

    /* Typography */
    --font-display: 'Instrument Serif', Georgia, serif;
    --font-mono: 'IBM Plex Mono', 'SF Mono', monospace;

    /* Spacing */
    --section-padding: clamp(2rem, 5vw, 4rem);
    --container-max: 1200px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

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

body {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Grid Background */
.grid-bg {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

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

/* Links */
a {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    text-decoration-color: transparent;
    transition: all var(--transition-fast);
}

a:hover {
    color: var(--accent);
    text-decoration-color: var(--accent);
    text-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

/* Typography */
h1,
h2,
h3,
h4 {
    font-family: var(--font-display);
    font-weight: 400;
    color: var(--text-primary);
    line-height: 1.2;
}

.nowrap {
    white-space: nowrap;
}

ul {
    list-style: none;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.25rem 2rem;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background: rgba(10, 10, 11, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
    transition: all var(--transition-fast);
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-thickness: 1px;
    text-decoration-color: transparent;
}

.nav-links a:hover {
    color: var(--text-primary);
    text-decoration-color: var(--text-primary);
    text-shadow: 0 2px 8px rgba(250, 250, 250, 0.3);
}

.nav-cta {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.nav-links a.nav-cta:hover {
    border-color: var(--text-primary);
    background: var(--text-primary);
    color: var(--bg-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 0;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    width: 32px;
    height: 32px;
    position: relative;
    justify-content: center;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
    position: absolute;
    left: 4px;
}

.nav-toggle span:first-child {
    top: calc(50% - 8px);
}

.nav-toggle span:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.nav-toggle span:last-child {
    top: calc(50% + 8px);
    transform: translateY(-100%);
}

.nav-toggle.active span:first-child {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateY(-50%) translateX(-10px);
}

.nav-toggle.active span:last-child {
    top: 50%;
    transform: translateY(-50%) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu a {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 6rem 2rem 4rem;
    position: relative;
}

.hero-content {
    max-width: var(--container-max);
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 4rem;
    align-items: center;
}

.hero-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 50%, var(--text-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    text-shadow: 0 0 40px rgba(139, 92, 246, 0.2);
}

.hero-title .line {
    display: block;
}

.hero-title em {
    font-style: italic;
    background: linear-gradient(135deg, var(--accent) 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 8px rgba(139, 92, 246, 0.4));
}

.hero-title strong {
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent) 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 8px rgba(139, 92, 246, 0.5));
    letter-spacing: 0.02em;
    text-decoration: underline;
    text-decoration-color: var(--accent);
    text-underline-offset: 8px;
    text-decoration-thickness: 2px;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

.hero-description {
    font-size: 1rem;
    line-height: 1.8;
    max-width: 100%;
    margin-bottom: 2rem;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.875rem 1.5rem;
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    letter-spacing: 0.02em;
    border-radius: 4px;
    transition: all var(--transition-fast);
    cursor: pointer;
}

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

.btn-primary:hover {
    background: transparent;
    color: var(--text-primary);
}

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

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

/* Hero Visual */
.hero-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.profile-container {
    position: relative;
    width: 300px;
    height: 300px;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    transition: filter var(--transition-base), transform var(--transition-base);
}

.profile-img:hover {
    filter: brightness(1.1);
    transform: scale(1.02);
}

.profile-accent {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 100%;
    height: 100%;
    border: 1px solid var(--accent);
    border-radius: 50%;
    z-index: -1;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--text-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
}

/* Scroll Indicator */
.scroll-indicator {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
    z-index: 100;
    transition: opacity var(--transition-base);
    background: var(--bg-card);
    padding: 0.5rem 1rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.scroll-center {
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
}

.scroll-nav {
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: all var(--transition-fast);
    line-height: 1;
}

.scroll-nav:hover {
    color: var(--accent);
    transform: scale(1.1);
}



.scroll-line {
    width: 100px;
    height: 3px;
    background: var(--border);
    position: relative;
    overflow: hidden;
    border-radius: 2px;
    --scroll-progress: 0%;
}

.scroll-line::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: var(--scroll-progress);
    height: 100%;
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent-purple) 100%);
    transition: width 0.15s ease-out;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

/* Sections */
.section {
    padding: var(--section-padding) 2rem;
    position: relative;
}

.section-inner {
    max-width: var(--container-max);
    margin: 0 auto;
}

.section-header {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    margin-bottom: 1.9rem;
}

.section-number {
    font-size: 0.75rem;
    color: var(--accent);
    letter-spacing: 0.05em;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
}

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

.about-lead {
    font-size: 1.25rem;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.skill-category {
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-slow);
}

.skill-category.visible {
    opacity: 1;
    transform: translateY(0);
}

.skill-category h3 {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.skill-category ul {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}



.exp-company h3 a,
.edu-school a,
.entry-title {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-base);
}

.exp-company h3 a:hover,
.edu-school a:hover,
.entry-title:hover {
    color: var(--accent-purple);
    text-decoration: underline;
}

.skill-category li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: 0.25rem 0;
    border-bottom: 1px solid var(--border);
}

/* Filter Container */
.filter-container {
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(59, 130, 246, 0.03) 100%);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.filter-label {
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.filter-label::before {
    content: '⚡';
    margin-right: 0.5rem;
    opacity: 0.7;
}

.filter-dropdown {
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    background: var(--bg-tertiary);
    background-image: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-card) 100%);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-base);
    min-width: 200px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    background-image:
        linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-card) 100%),
        url("data:image/svg+xml,%3Csvg width='16' height='16' viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M4 6L8 10L12 6' stroke='%233b82f6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.filter-dropdown:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
    transform: translateY(-1px);
}

.filter-dropdown:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-subtle), 0 4px 12px rgba(59, 130, 246, 0.2);
}

.filter-dropdown option {
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 0.5rem;
}

/* Experience Section */

.experience-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.experience-item {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-slow);
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.experience-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.experience-item:hover {
    border-color: var(--border-light);
}

.exp-logo {
    flex-shrink: 0;
    width: 115px;
    height: auto;
    opacity: 0.9;
    transition: opacity var(--transition-base);
}

.exp-logo-placeholder {
    height: 115px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-tertiary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.experience-item:hover .exp-logo {
    opacity: 1;
}

.exp-content {
    flex: 1;
}

.exp-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.exp-company h3 {
    font-family: var(--font-mono);
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.exp-role {
    font-size: 0.875rem;
    color: var(--accent);
}

.exp-date {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

.exp-details {
    margin-bottom: 1rem;
}

.exp-details li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.exp-details li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--text-tertiary);
}

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

.exp-tags span {
    padding: 0.25rem 0.75rem;
    background: var(--accent-subtle);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--accent);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.project-card {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-slow);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-card:hover {
    border-color: var(--border-light);
    transform: translateY(-4px);
}

.project-card.featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(59, 130, 246, 0.05) 100%);
    border-color: rgba(59, 130, 246, 0.2);
}

.project-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 0.75rem;
    display: block;
}

.project-card h3 {
    font-family: var(--font-mono);
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.project-card p {
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.project-tags span {
    padding: 0.25rem 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 4px;
    font-size: 0.6875rem;
    color: var(--text-tertiary);
}

.project-link {
    font-size: 0.875rem;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* Research Section */

.research-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.research-philosophy h3,
.research-status h3,
.research-forward h3 {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.research-philosophy p {
    margin-bottom: 1rem;
}

.status-list {
    display: grid;
    gap: 0.75rem;
    font-size: 0.875rem;
}

.status-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.6875rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border: 1px solid transparent;
}

.status-tag.completed {
    color: #86efac;
    border-color: rgba(34, 197, 94, 0.4);
    background: rgba(34, 197, 94, 0.12);
}

.status-tag.in-progress {
    color: #fde68a;
    border-color: rgba(250, 204, 21, 0.4);
    background: rgba(250, 204, 21, 0.12);
}

.status-tag.reference {
    color: #c4b5fd;
    border-color: rgba(139, 92, 246, 0.4);
    background: rgba(139, 92, 246, 0.12);
}

.status-tag.applied {
    color: #7dd3fc;
    border-color: rgba(14, 165, 233, 0.4);
    background: rgba(14, 165, 233, 0.12);
}

.research-domains {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.research-card {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-slow);
}

.research-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.research-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.research-entry {
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.research-entry:last-of-type {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.research-cover {
    width: 120px;
    height: auto;
    border-radius: 4px;
    margin: 0 auto 1rem auto;
    display: block;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
    transition: all var(--transition-base);
    opacity: 0.9;
}

.research-cover:hover {
    opacity: 1;
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.5);
    transform: translateY(-2px);
}

.entry-header {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 0.75rem;
}

.entry-title {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.entry-link-icon {
    font-size: 0.85em;
    color: var(--text-tertiary);
    transition: color 0.2s ease;
}

.entry-title:hover .entry-link-icon {
    color: var(--accent);
}

.entry-meta {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.entry-why,
.entry-application {
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.research-forward {
    padding: 2rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-tertiary);
}

.research-interests {
    display: grid;
    gap: 0.5rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.research-interests li {
    position: relative;
    padding-left: 1.25rem;
}

.research-interests li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-purple);
}

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

/* Blog Section */
.blog-intro {
    max-width: 720px;
    margin-bottom: 2rem;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.blog-card {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-slow);
}

.blog-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.blog-pill {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 0.75rem;
    display: inline-flex;
}

.blog-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 1rem;
    box-shadow: 0 0 20px rgba(167, 139, 250, 0.3);
    transition: all var(--transition-base);
}

.blog-card:hover .blog-image {
    transform: scale(1.01);
    box-shadow: 0 0 30px rgba(167, 139, 250, 0.5);
}

.blog-card h3 {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.blog-card p {
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
}

.blog-card ul {
    display: grid;
    gap: 0.4rem;
    margin-bottom: 1rem;
    font-size: 0.8rem;
}

.blog-card li {
    display: flex;
    align-items: baseline;
}

.blog-card li::before {
    content: '→';
    color: var(--text-tertiary);
    margin-right: 0.5rem;
}

.blog-status {
    display: inline-flex;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
}

.blog-link a {
    color: var(--accent);
}

/* Education Section */

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.edu-card {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-slow);
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
}

.edu-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.edu-logo {
    flex-shrink: 0;
    width: 138px;
    height: auto;
    opacity: 0.9;
    transition: opacity var(--transition-base);
}

.edu-card:hover .edu-logo {
    opacity: 1;
}

.edu-content {
    flex: 1;
}

.edu-card--minor {
    padding: 1.25rem;
    gap: 1rem;
}

.edu-card--minor .edu-content {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.edu-minor-title {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--text-primary);
}

.edu-minor-school {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

.edu-school {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    text-align: center;
}

.edu-degree {
    font-size: 1rem;
    color: var(--accent-purple);
    margin-bottom: 0.5rem;
    text-align: center;
}

.edu-date {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    margin-bottom: 0.5rem;
    text-align: center;
}

.edu-gpa {
    font-size: 0.875rem;
    color: var(--accent);
    margin-bottom: 1rem;
    text-align: center;
}

.edu-specializations {
    margin-top: 1rem;
    text-align: left;
}

.specialization-group {
    margin-bottom: 0;
}

.specialization-title {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0 0 0 1.5rem;
    margin-bottom: 0.35rem;
    cursor: pointer;
    list-style: none;
    user-select: none;
    transition: all var(--transition-fast);
    position: relative;
}

.specialization-title::-webkit-details-marker {
    display: none;
}

.specialization-title::before {
    content: '+';
    position: absolute;
    left: 0;
    color: var(--accent-purple);
    font-weight: bold;
    transition: transform var(--transition-fast);
}

.specialization-group[open] .specialization-title::before {
    content: '−';
}

.specialization-title:hover {
    color: var(--text-primary);
}

.specialization-group[open] .edu-courses {
    padding-left: 1.5rem;
}

.specialization-group .edu-courses {
    margin-top: 0;
}

.edu-courses {
    font-size: 0.8125rem;
    color: #ffffff;
    line-height: 1.6;
    display: grid;
    gap: 0.35rem;
    margin-top: 1rem;
    text-align: left;
}

.edu-courses li {
    position: relative;
    padding-left: 1.25rem;
}

.edu-courses li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #ffffff;
}

.edu-highlight {
    font-size: 0.875rem;
    color: var(--accent);
    margin-top: 1rem;
}

.edu-activities-section {
    margin-top: 1rem;
    text-align: left;
}

.edu-activities-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.edu-activities {
    font-size: 0.8125rem;
    color: #ffffff;
    line-height: 1.6;
    display: grid;
    gap: 0.35rem;
}

.edu-activities li {
    position: relative;
    padding-left: 1.25rem;
}

.edu-activities li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #ffffff;
}

.edu-card--white-bullets .edu-courses li::before,
.edu-card--white-bullets .edu-activities li::before {
    color: var(--text-primary);
}

/* Contact Section */
.contact {
    text-align: center;
    padding: var(--section-padding) 2rem;
}

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

.contact-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
}

.contact-text {
    font-size: 1rem;
    margin-bottom: 2rem;
}

.contact-email {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 2rem;
    text-decoration: none;
    text-underline-offset: 4px;
    text-decoration-thickness: 2px;
    transition: text-decoration-color var(--transition-base);
}

.contact-email:hover {
    text-decoration: underline;
    text-decoration-color: var(--accent);
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.contact-link svg {
    width: 20px;
    height: 20px;
}

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

.footer-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    text-align: center;
}

.footer p {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

/* Responsive */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-visual {
        align-items: center;
        order: -1;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

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

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

    .stat {
        text-align: center;
    }

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

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

@media (max-width: 640px) {
    .section {
        padding: 2rem 1.5rem;
    }



    .nav {
        padding: 1rem 1.5rem;
    }

    .hero {
        padding: 5rem 1.5rem 3rem;
    }

    .hero-title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }

    .profile-container {
        width: 220px;
        height: 220px;
    }

    .stat-number {
        font-size: 2rem;
    }

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

    .experience-item {
        padding: 1.5rem;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .exp-logo {
        margin-bottom: 1.5rem;
    }

    .exp-header {
        flex-direction: column;
        align-items: center;
    }

    .exp-details {
        text-align: left;
    }

    .exp-tags {
        justify-content: center;
    }

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

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

    .filter-container {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        padding: 1.25rem;
    }

    .filter-label {
        font-size: 0.8125rem;
    }

    .filter-dropdown {
        width: 100%;
        min-width: unset;
        padding: 0.875rem 2.5rem 0.875rem 1rem;
        font-size: 0.9375rem;
    }
}

/* Purple Accent Colors - Strategic Application */

/* Alternating section backgrounds (even sections get dark grey) */
.section:nth-of-type(even) {
    background: var(--bg-secondary);
}

/* Alternating section numbers (even sections get purple) */
.section:nth-of-type(even) .section-number {
    color: var(--accent-purple);
}

/* All experience role titles */
.exp-role {
    color: var(--accent-purple);
}

/* Alternating skill category headers */
.skill-category:nth-child(even) h3 {
    color: var(--accent-purple);
}

/* Non-featured project labels */
.project-card:not(.featured) .project-label {
    color: var(--accent-purple);
}

/* Scroll Target Highlight Animation */
.scroll-target {
    animation: scrollHighlight 1.5s ease-out;
}

@keyframes scrollHighlight {
    0% {
        box-shadow: 0 0 0 0 rgba(167, 139, 250, 0.4);
    }

    50% {
        box-shadow: 0 0 30px 10px rgba(167, 139, 250, 0.2);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(167, 139, 250, 0);
    }
}

/* Animations */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* No-JS Fallback */
.no-js .experience-item,
.no-js .project-card,
.no-js .edu-card,
.no-js .skill-category,
.no-js .research-card,
.no-js .blog-card {
    opacity: 1 !important;
    transform: none !important;
    visibility: visible !important;
}