:root {
    --bg: #0d0d0d;
    --bg-subtle: #151515;
    --surface: #1c1c1c;
    --border: #2a2a2a;
    --accent: #c8a96e; /* warm gold */
    --accent-dim: #8a7248;
    --text: #e8e4dc;
    --muted: #cdc8c0;
    --white: #f5f2ec;

    --font-display: "Playfair Display", Georgia, serif;
    --font-body: "IBM Plex Sans", sans-serif;
    --font-mono: "IBM Plex Mono", monospace;

    --max-w: 900px;
    --nav-h: 70px;
    --subnav-h: 44px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 16px;
    line-height: 1.7;
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Navigation */

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-h);
    background: rgba(13, 13, 13, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 2rem;
    z-index: 100;
}

.nav-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--accent);
    letter-spacing: 0.02em;
    transition: opacity 0.2s;
}
.nav-logo:hover {
    opacity: 0.75;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    transition: color 0.2s;
    position: relative;
}

.nav-links a::after {
    content: "";
    position: absolute;
    bottom: -3px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent);
}
.nav-links a:hover::after,
.nav-links a.active::after {
    transform: scaleX(1);
}

/* Nav projects button */

.nav-projects-btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    position: relative;
    transition: color 0.2s;
}

.nav-projects-btn::after {
    content: "";
    position: absolute;
    bottom: -3px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
}

.nav-projects-btn:hover,
.nav-projects-btn.active {
    color: var(--accent);
}

.nav-projects-btn:hover::after,
.nav-projects-btn.active::after {
    transform: scaleX(1);
}

/* Projects sub-nav bar */

.projects-bar {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    height: var(--subnav-h);
    background: rgba(15, 15, 15, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 2rem;
    z-index: 99;
    animation: slideDown 0.18s ease both;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.projects-bar-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    width: 100%;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.projects-bar a {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    transition: color 0.2s;
    position: relative;
}

.projects-bar a::after {
    content: "";
    position: absolute;
    bottom: -3px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
}

.projects-bar a:hover,
.projects-bar a.active {
    color: var(--accent);
}

.projects-bar a:hover::after,
.projects-bar a.active::after {
    transform: scaleX(1);
}

/* Projects bar overflow dropdown */

.projects-overflow {
    position: relative;
}

.projects-overflow-trigger {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    color: var(--muted);
    cursor: default;
    transition: color 0.2s;
    user-select: none;
}

.projects-overflow-trigger.active,
.projects-overflow:hover .projects-overflow-trigger {
    color: var(--accent);
}

/* Transparent wrapper — padding-top bridges the gap, keeping :hover alive */
.projects-overflow-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding-top: 10px;
    z-index: 200;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.12s ease 0.06s;
}

.projects-overflow:hover .projects-overflow-menu {
    pointer-events: auto;
    opacity: 1;
    transition: opacity 0.12s ease;
}

.projects-overflow-box {
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.4rem 0;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
    white-space: nowrap;
    min-width: 160px;
    position: relative;
}

.projects-overflow-box::before {
    content: "";
    position: absolute;
    top: -5px;
    left: 50%;
    width: 8px;
    height: 8px;
    background: var(--bg-subtle);
    border-left: 1px solid var(--border);
    border-top: 1px solid var(--border);
    transform: translateX(-50%) rotate(45deg);
}

.projects-overflow-menu a {
    display: block;
    padding: 0.35rem 1rem;
    position: static;
}

/* Suppress the bar underline animation inside the dropdown */
.projects-overflow-menu a::after {
    display: none;
}

/* Page Wrapper */

.page {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: calc(var(--nav-h) + 4rem) 2rem 6rem;
    animation: fadeUp 0.5s ease both;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Typography */

.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.75rem;
    display: block;
}

h1,
h2,
h3 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.15;
}

h1 {
    font-size: clamp(2.4rem, 6vw, 4rem);
}
h2 {
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
}
h3 {
    font-size: 1.25rem;
}

.lead {
    font-size: 1.15rem;
    color: var(--muted);
    font-weight: 300;
    max-width: 60ch;
    margin-top: 1.25rem;
    line-height: 1.8;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1rem 1.25rem;
}

.divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 3rem 0;
}

/* Home page */

.hero {
    padding: 2rem 0 3rem;
}

.hero-inner {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.hero-text {
    flex: 1;
}

.hero-avatar {
    align-self: center;
    height: 10rem;
    width: 10rem;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    object-fit: cover;
    object-position: center top;
    border: 2px solid var(--border);
    flex-shrink: 0;
}

.hero h1 {
    margin-bottom: 0.5rem;
}

.hero h1 em {
    color: var(--accent);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

@media (max-width: 640px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.about-card {
    border-left: 1px solid var(--border);
    padding-left: 1.5rem;
}

.about-card .eyebrow {
    margin-bottom: 0.5rem;
}

.about-card p {
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.75;
}

.skills-list {
    list-style: none;
    margin-top: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skills-list li {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--accent);
    padding: 0.25rem 0.65rem;
    border-radius: 2px;
}

/* Resume page */

.resume-header {
    margin-bottom: 2rem;
}

.resume-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.65rem 1.4rem;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg);
}
.btn-primary:hover {
    background: var(--white);
}

.btn-outline {
    background: transparent;
    border-color: var(--border);
    color: var(--muted);
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.pdf-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    aspect-ratio: 8.5 / 11;
}

.pdf-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.pdf-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 500px;
    gap: 1rem;
    color: var(--muted);
    text-align: center;
    padding: 2rem;
}

.pdf-icon {
    font-size: 3rem;
    opacity: 0.4;
}

.pdf-placeholder p {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.06em;
    line-height: 1.6;
    max-width: 40ch;
}

/* Contact Page */

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 4rem;
    margin-top: 2rem;
}

@media (max-width: 640px) {
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

.contact-info h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 400;
    margin-bottom: 0.4rem;
}

.contact-info p {
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    color: var(--muted);
    transition: color 0.2s;
    text-decoration: none;
}

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

.contact-link .link-label {
    display: block;
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-dim);
    margin-bottom: 0.1rem;
}

/* Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
}

.form-group input,
.form-group textarea {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 2px;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 300;
    padding: 0.75rem 1rem;
    transition: border-color 0.2s;
    outline: none;
    resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-dim);
}

.form-group textarea {
    min-height: 140px;
}

.form-error {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    color: #c06060;
    margin-top: -0.4rem;
}

.spinner {
    display: inline-block;
    width: 0.85em;
    height: 0.85em;
    border: 2px solid rgba(13, 13, 13, 0.3);
    border-top-color: var(--bg);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    flex-shrink: 0;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.form-success {
    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    padding: 1.25rem 1.5rem;
    border-radius: 2px;
}

.form-success p {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    color: var(--accent);
}

/* Source toggle button */

.source-toggle {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: lowercase;
    color: var(--muted);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 0.35rem 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}

.source-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.source-toggle.active {
    background: var(--surface);
    border-color: var(--accent);
    color: var(--accent);
}

/* Source view */

.source-filename {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: var(--accent-dim);
    margin-top: 0.5rem;
}

.source-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1.5rem 2rem;
    overflow-x: auto;
    margin-top: 1.25rem;
}

.source-block code {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.65;
    color: var(--text);
    white-space: pre;
}

/* Project grid (overview page) */

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-card {
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1.75rem;
    background: var(--surface);
    transition: border-color 0.2s;
}

.project-card:hover {
    border-color: var(--accent-dim);
}

.project-card h3 {
    margin-top: 0.4rem;
    margin-bottom: 0.75rem;
}

.project-card p {
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.75;
}

/* Project pages */

.project-section {
    margin-bottom: 0.5rem;
}

.project-section h2 {
    margin-top: 0.5rem;
    margin-bottom: 0.75rem;
}

.project-section p {
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.8;
    max-width: 68ch;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1rem 1.25rem;
    margin-top: 1rem;
}

.prose-link {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-color: var(--accent-dim);
    text-underline-offset: 3px;
    transition: text-decoration-color 0.2s;
}

.prose-link:hover {
    text-decoration-color: var(--accent);
}

.inline-code {
    font-family: var(--font-mono);
    font-size: 0.82em;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 0.1em 0.4em;
    color: var(--accent);
}

.code-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.85rem 1.25rem;
    max-width: 68ch;
}

.code-block pre,
.code-block code {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--text);
    line-height: 1.5;
}

.project-steps {
    margin-top: 0.75rem;
    margin-left: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.8;
    max-width: 68ch;
}

/* Footer */

footer {
    border-top: 1px solid var(--border);
    padding: 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

footer p {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--muted);
}

footer span {
    color: var(--accent-dim);
}

.footer-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.footer-links a {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    transition: color 0.2s;
}

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

/* Featured projects (home page — 2-col) */

.featured-projects {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 1.5rem;
}

@media (max-width: 640px) {
    .featured-projects {
        grid-template-columns: 1fr;
    }
}

/* Work experience (resume page) */

.experience-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 1.5rem;
}

.experience-item {
    border-left: 1px solid var(--border);
    padding-left: 1.5rem;
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.experience-company {
    font-family: var(--font-display);
    font-size: 1.05rem;
    color: var(--text);
    display: block;
    margin-bottom: 0.2rem;
}

.experience-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    color: var(--accent);
    display: block;
}

.experience-meta {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    color: var(--muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.experience-bullets {
    margin-left: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.75;
    max-width: 68ch;
}

/* Skill tag wrapper + hover popup (projects overview) */

.skill-tag-wrapper {
    position: relative;
    cursor: default;
}

/* Transparent hit-area wrapper — starts flush with the tag bottom so
   the cursor never enters a dead zone when moving toward the popup. */
.skill-popup {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding-top: 8px; /* visual gap — transparent, keeps hover alive */
    z-index: 200;
    width: max-content;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.12s ease 0.06s;
}

.skill-tag-wrapper:hover .skill-popup {
    pointer-events: auto;
    opacity: 1;
    transition: opacity 0.12s ease;
}

/* Visual box inside the transparent wrapper */
.skill-popup-box {
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.75rem 1rem;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
    transform: translateY(-4px);
    transition: transform 0.12s ease 0.06s;
    position: relative;
}

.skill-tag-wrapper:hover .skill-popup-box {
    transform: translateY(0);
    transition: transform 0.12s ease;
}

.skill-popup-box::before {
    content: "";
    position: absolute;
    top: -5px;
    left: 50%;
    width: 8px;
    height: 8px;
    background: var(--bg-subtle);
    border-left: 1px solid var(--border);
    border-top: 1px solid var(--border);
    transform: translateX(-50%) rotate(45deg);
}

.skill-popup-project {
    display: block;
    white-space: nowrap;
    border-radius: 2px;
    padding: 0.25rem 0.35rem;
    margin: -0.25rem -0.35rem;
    transition: background 0.15s ease;
}

.skill-popup-project:hover {
    background: var(--surface);
}

.skill-popup-project + .skill-popup-project {
    margin-top: 0.35rem;
    padding-top: 0.6rem;
    border-top: 1px solid var(--border);
}

.skill-popup-name {
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--accent);
}

.skill-popup-sep {
    color: var(--accent-dim);
    margin: 0 0.25rem;
}

.skill-popup-desc {
    font-size: 0.78rem;
    color: var(--muted);
}

.skill-count {
    font-size: 0.7rem;
    color: var(--muted);
    margin-left: 0.2rem;
    opacity: 0.7;
}