:root {
    --bg: #041105;
    --bg-soft: #08180c;
    --panel: rgba(7, 28, 12, 0.78);
    --panel-border: rgba(92, 255, 120, 0.2);
    --text: #d9ffe3;
    --muted: #94c9a2;
    --accent: #63ff7c;
    --accent-strong: #98ff9f;
    --shadow: 0 0 24px rgba(99, 255, 124, 0.12);
    --bg-radial: rgba(61, 255, 100, 0.08);
    --bg-start: #020804;
    --bg-mid: #031108;
    --bg-end: #010603;
    --grid-line: rgba(99, 255, 124, 0.045);
    --header-bg: rgba(2, 15, 6, 0.86);
    --selection: rgba(99, 255, 124, 0.3);
    --radius: 18px;
    --max-width: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background:
        radial-gradient(circle at top, var(--bg-radial), transparent 30%),
        linear-gradient(180deg, var(--bg-start) 0%, var(--bg-mid) 55%, var(--bg-end) 100%);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
}

body[data-theme="light"] {
    --bg: #fcf9ff;
    --bg-soft: #f3ecff;
    --panel: rgba(255, 255, 255, 0.88);
    --panel-border: rgba(142, 92, 255, 0.2);
    --text: #231437;
    --muted: #735a97;
    --accent: #8d55ff;
    --accent-strong: #6e32ea;
    --shadow: 0 10px 32px rgba(137, 88, 255, 0.12);
    --bg-radial: rgba(163, 120, 255, 0.12);
    --bg-start: #fffefe;
    --bg-mid: #f7f1ff;
    --bg-end: #f1e8ff;
    --grid-line: rgba(141, 85, 255, 0.08);
    --header-bg: rgba(255, 255, 255, 0.84);
    --selection: rgba(141, 85, 255, 0.24);
}

body[data-theme="light"] .hero-photo {
    background:
        radial-gradient(circle at 30% 30%, color-mix(in srgb, var(--accent) 18%, white 12%), transparent 45%),
        rgba(255, 255, 255, 0.92);
}

body[data-theme="light"] .hyperboloid-frame {
    background:
        radial-gradient(circle at top, color-mix(in srgb, var(--accent) 12%, white 14%), transparent 45%),
        rgba(255, 255, 255, 0.94);
}

body[data-theme="light"] .project-visual,
body[data-theme="light"] input,
body[data-theme="light"] textarea {
    background-color: rgba(255, 255, 255, 0.82);
}

body.is-loading {
    overflow: hidden;
}

body::selection {
    background: var(--selection);
}

.boot-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle at center, rgba(15, 55, 23, 0.22), transparent 42%),
        linear-gradient(180deg, #010503 0%, #021008 58%, #010603 100%);
    opacity: 1;
    visibility: visible;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.boot-loader.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.boot-loader-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.grid-overlay {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 34px 34px;
    pointer-events: none;
    opacity: 0.35;
    z-index: -1;
}

.shell {
    width: min(var(--max-width), calc(100% - 2rem));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    width: min(var(--max-width), calc(100% - 2rem));
    margin: 1rem auto 0;
    padding: 1rem 1.25rem;
    border: 1px solid var(--panel-border);
    border-radius: 999px;
    background: var(--header-bg);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
}

.brand {
    color: var(--accent-strong);
    text-decoration: none;
    font-weight: 800;
    letter-spacing: 0.12em;
}

.brand-cursor,
.cursor {
    animation: blink 1s steps(1) infinite;
}

.menu {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 1rem;
    margin: 0;
    padding: 0;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0.45rem;
    background: transparent;
    border: 1px solid var(--panel-border);
    border-radius: 10px;
    cursor: pointer;
    flex-shrink: 0;
    outline: none;
    -webkit-appearance: none;
    -webkit-tap-highlight-color: transparent;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.nav-toggle:hover {
    border-color: color-mix(in srgb, var(--accent) 45%, transparent);
    box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 15%, transparent);
}

.nav-toggle-bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transform-origin: center;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.floating-theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 20;
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.28rem;
    border: 1px solid var(--panel-border);
    border-radius: 999px;
    background: color-mix(in srgb, var(--panel) 82%, transparent);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.theme-option {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 0.8rem;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: var(--muted);
    font: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition:
        background 0.2s ease,
        color 0.2s ease,
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.theme-option.active {
    background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 22%, white 8%), color-mix(in srgb, var(--accent) 9%, transparent));
    color: var(--text);
    box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 18%, transparent);
}

.theme-option:hover,
.theme-option:focus-visible {
    color: var(--text);
    transform: translateY(-1px);
}

.theme-icon {
    font-size: 0.9rem;
    line-height: 1;
}

.menu a,
a {
    color: var(--text);
    text-decoration: none;
}

.menu a {
    font-size: 0.95rem;
    color: var(--muted);
    transition: color 0.2s ease, text-shadow 0.2s ease;
}

.menu a:hover,
.menu a:focus-visible,
a:hover,
a:focus-visible {
    color: var(--accent-strong);
    text-shadow: 0 0 12px color-mix(in srgb, var(--accent) 45%, transparent);
}

.section {
    padding: 5.5rem 0 0;
    scroll-margin-top: 5rem;
}

.hero {
    min-height: calc(100vh - 6rem);
    display: grid;
    grid-template-columns: 1.35fr 0.95fr;
    align-items: center;
    gap: 1.5rem;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    padding: 1.4rem;
    box-shadow: var(--shadow);
}

.hero-copy {
    padding: 2rem;
}

.hero-photo {
    width: min(100%, 420px);
    aspect-ratio: 1;
    margin-inline: auto;
    padding: 0.75rem;
    border-radius: 50%;
    overflow: hidden;
    background:
        radial-gradient(circle at 30% 30%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 45%),
        rgba(3, 18, 7, 0.92);
}

.hero-photo-image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: 50%;
    border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.34);
}

.eyebrow {
    margin: 0 0 0.85rem;
    color: var(--accent-strong);
    letter-spacing: 0.18em;
    font-size: 0.78rem;
    text-transform: uppercase;
}

h1,
h2,
h3,
p,
ul {
    margin-top: 0;
}

h1 {
    font-size: clamp(2.4rem, 5vw, 4.75rem);
    line-height: 1.05;
    margin-bottom: 1rem;
}

h2 {
    font-size: clamp(1.8rem, 3vw, 2.7rem);
    margin-bottom: 0.65rem;
}

h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.hero-tagline {
    color: var(--muted);
    max-width: 40rem;
    font-size: 1.08rem;
}

.typed-line {
    min-height: 1.8rem;
    color: var(--accent);
    font-weight: 600;
    margin: 1.5rem 0;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-top: 1.5rem;
}

.about-copy {
    min-height: 100%;
}

.hyperboloid-panel {
    display: grid;
    gap: 1rem;
    align-content: start;
    min-height: 100%;
}

.hyperboloid-frame {
    aspect-ratio: 0.88;
    width: 100%;
    max-width: 450px;
    margin-inline: auto;
    padding: 1rem;
    border-radius: 22px;
    border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
    background:
        radial-gradient(circle at top, color-mix(in srgb, var(--accent) 12%, transparent), transparent 45%),
        rgba(1, 12, 4, 0.9);
    box-shadow: inset 0 0 28px color-mix(in srgb, var(--accent) 8%, transparent);
}

.hyperboloid-canvas {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 16px;
    background: transparent;
}

.hyperboloid-note {
    margin-bottom: 0;
    color: var(--muted);
    font-size: 0.84rem;
    line-height: 1.55;
}

.skills-panel {
    margin-top: 1.25rem;
}

.button,
.filter-button {
    border: 1px solid var(--panel-border);
    border-radius: 999px;
    padding: 0.75rem 1.1rem;
    cursor: pointer;
    font: inherit;
    transition:
        transform 0.18s ease,
        box-shadow 0.18s ease,
        background 0.18s ease,
        color 0.18s ease;
}

.button:hover,
.filter-button:hover,
.button:focus-visible,
.filter-button:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 18%, transparent);
}

.button.primary,
.filter-button.active {
    background: linear-gradient(
        135deg,
        color-mix(in srgb, var(--accent) 18%, transparent),
        color-mix(in srgb, var(--accent) 8%, transparent)
    );
    color: var(--accent-strong);
}

.button.ghost,
.filter-button {
    background: transparent;
    color: var(--text);
}

.terminal-card {
    min-height: 300px;
}

.terminal-topbar {
    display: flex;
    gap: 0.45rem;
    margin-bottom: 1rem;
}

.terminal-topbar span {
    width: 11px;
    height: 11px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--accent) 55%, transparent);
}

.terminal-body {
    font-family: "Courier New", Courier, monospace;
    color: var(--accent-strong);
}

.section-heading {
    margin-bottom: 1.25rem;
}

.section-heading p:last-child {
    color: var(--muted);
    max-width: 46rem;
}

.two-column,
.contact-layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 1rem;
}

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

.resume-download {
    margin: 0 0 1.25rem;
    color: var(--muted);
    font-size: 1.02rem;
}

.resume-download a {
    color: var(--accent-strong);
    font-weight: 700;
}

.resume-card h3 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--accent-strong);
    letter-spacing: 0.02em;
}

.resume-card p,
.resume-card li {
    font-size: 1.05rem;
}

.resume-school {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--text);
}

.resume-detail {
    color: var(--muted);
}

.resume-card .clean-list {
    list-style: disc;
    padding-left: 1.3rem;
}

.resume-card .clean-list li::marker {
    color: var(--accent-strong);
}

.cards {
    display: grid;
    gap: 1rem;
}

.two-up {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.three-up {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.info-card,
.blog-card,
.project-card {
    height: 100%;
}

.info-card {
    display: flex;
    flex-direction: column;
    gap: 0.95rem;
}

.blog-card {
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.blog-card:hover,
.blog-card:focus-within {
    transform: translateY(-4px);
    box-shadow: 0 0 24px color-mix(in srgb, var(--accent) 16%, transparent);
    border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

.blog-card-link {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    height: 100%;
}

.blog-kicker {
    margin-bottom: 0;
    color: var(--accent-strong);
    font-size: 0.78rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.blog-card-link h3 {
    margin-bottom: 0;
}

.blog-card-link p:last-of-type {
    color: var(--muted);
}

.blog-readmore {
    margin-top: auto;
    color: var(--accent-strong);
    font-weight: 700;
}

.meta {
    color: var(--accent-strong);
    font-size: 0.92rem;
}

.credential-link-row {
    margin-top: auto;
    padding-top: 0.35rem;
}

.tag-list,
.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
}

.tag-list span,
.project-tags span {
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--accent) 8%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent) 15%, transparent);
    color: var(--accent-strong);
    font-size: 0.9rem;
}

.clean-list {
    list-style: none;
    padding: 0;
    margin-bottom: 0;
}

.clean-list li + li {
    margin-top: 0.5rem;
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1rem 0 1.25rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.project-visual {
    min-height: 140px;
    border-radius: 14px;
    border: 1px solid color-mix(in srgb, var(--accent) 12%, transparent);
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--accent) 8%, transparent), transparent),
        radial-gradient(circle at top right, color-mix(in srgb, var(--accent) 14%, transparent), transparent 35%),
        rgba(0, 0, 0, 0.24);
    display: grid;
    place-items: center;
    color: var(--accent-strong);
    font-family: "Courier New", Courier, monospace;
    letter-spacing: 0.08em;
}

.project-card p {
    color: var(--muted);
}

.project-actions {
    margin-top: auto;
}

.contact-socials {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.social-card {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    text-decoration: none;
    color: var(--text);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.social-card:hover,
.social-card:focus-visible {
    transform: translateY(-5px);
    box-shadow: 0 0 36px color-mix(in srgb, var(--accent) 22%, transparent);
    border-color: color-mix(in srgb, var(--accent) 45%, transparent);
    color: var(--text);
    text-shadow: none;
}

.social-icon-wrap {
    width: 3.75rem;
    height: 3.75rem;
    border-radius: 16px;
    border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
    background:
        radial-gradient(circle at top left, color-mix(in srgb, var(--accent) 16%, transparent), transparent 60%),
        rgba(0, 0, 0, 0.22);
    display: grid;
    place-items: center;
    color: var(--accent);
    box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 10%, transparent);
    transition: box-shadow 0.2s ease;
}

.social-card:hover .social-icon-wrap,
.social-card:focus-visible .social-icon-wrap {
    box-shadow: 0 0 30px color-mix(in srgb, var(--accent) 30%, transparent);
}

.social-icon-wrap svg {
    width: 1.9rem;
    height: 1.9rem;
}

.social-card-body {
    flex: 1;
}

.social-platform {
    margin: 0 0 0.3rem;
    color: var(--accent-strong);
    letter-spacing: 0.18em;
    font-size: 0.78rem;
    text-transform: uppercase;
    font-family: "Courier New", Courier, monospace;
}

.social-handle {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
    word-break: break-all;
}

.social-cta {
    color: var(--muted);
    font-size: 0.92rem;
    transition: color 0.2s ease;
}

.social-card:hover .social-cta,
.social-card:focus-visible .social-cta {
    color: var(--accent-strong);
}

.site-footer {
    padding: 4rem 0 2rem;
    color: var(--muted);
    text-align: center;
}

.post-page .site-header {
    position: static;
}

.post-hero {
    padding-top: 4rem;
}

.post-shell {
    width: min(820px, calc(100% - 2rem));
    margin: 0 auto;
}

.post-meta {
    color: var(--accent-strong);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-size: 0.82rem;
}

.post-panel {
    margin-top: 1.5rem;
    padding: 2rem;
}

.post-panel p,
.post-panel li {
    font-size: 1.05rem;
    color: var(--text);
}

.post-panel ul {
    padding-left: 1.2rem;
}

.post-panel li + li,
.post-panel p + p {
    margin-top: 1rem;
}

.post-back {
    display: inline-flex;
    margin-top: 1.25rem;
}

.hidden {
    display: none;
}

@keyframes blink {
    0%,
    49% {
        opacity: 1;
    }
    50%,
    100% {
        opacity: 0;
    }
}

@media (max-width: 960px) {
    .hero,
    .two-column,
    .contact-layout,
    .contact-socials,
    .resume-grid,
    .project-grid,
    .three-up,
    .two-up {
        grid-template-columns: 1fr;
    }

    .site-header {
        border-radius: 24px;
        align-items: flex-start;
        flex-direction: column;
    }

    .menu {
        justify-content: flex-start;
    }

    .hero-photo {
        width: min(100%, 360px);
    }
}

@media (max-width: 640px) {
    .section {
        padding-top: 4.5rem;
        scroll-margin-top: 4.5rem;
    }

    /* Keep consistent 1rem margins each side */
    .shell,
    .site-header {
        width: min(var(--max-width), calc(100% - 2rem));
    }

    /* Move theme toggle to bottom-right so it doesn't crowd the header */
    .floating-theme-toggle {
        top: auto;
        bottom: 1.25rem;
        right: 1rem;
    }

    .hero-copy,
    .panel {
        padding: 1.1rem;
    }

    /* Preserve the ring thickness — don't let the .panel override affect photo padding */
    .hero-photo {
        padding: 0.75rem;
        width: min(100%, 300px);
    }

    h1 {
        font-size: 2.4rem;
    }

    /* Hero: no forced viewport height when content is stacked */
    .hero {
        min-height: auto;
        padding-top: 1.5rem;
        padding-bottom: 2rem;
    }

    /* Header: compact row with hamburger toggle */
    .site-header {
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
        row-gap: 0;
    }

    .nav-toggle {
        display: flex;
    }

    /* Nav hidden until toggled open */
    .nav {
        display: none;
        width: 100%;
    }

    .nav.is-open {
        display: block;
    }

    .menu {
        flex-direction: column;
        gap: 0.15rem;
        padding: 0.5rem 0 0.25rem;
    }

    .menu a {
        display: block;
        padding: 0.6rem 0.5rem;
        border-radius: 8px;
        font-size: 1rem;
    }

    .menu a:hover,
    .menu a:focus-visible {
        background: color-mix(in srgb, var(--accent) 8%, transparent);
        text-shadow: none;
    }
}