/* Orbital editorial — shared home-page styles. No external fonts or UI dependencies. */
:root {
    color-scheme: dark;
    --space: #070b10;
    --ink: #ecf0ef;
    --muted: #a4b2b9;
    --accent: #b8e6d2;
    --line: #ffffff24;
    --mono: ui-monospace, "Cascadia Code", Consolas, monospace;
    --content: 1160px;
}
*, *::before, *::after { box-sizing: border-box; }
html { background: var(--space); scroll-padding-top: 100px; }
body { margin: 0; color: var(--ink); background: var(--space); font: 16px/1.65 "Segoe UI", Arial, sans-serif; -webkit-font-smoothing: antialiased; }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; background:
    radial-gradient(ellipse at 76% 24%, #27454d26, transparent 44%),
    radial-gradient(ellipse at 94% 58%, #3540521c, transparent 38%),
    radial-gradient(ellipse at 52% 76%, #17393018, transparent 48%); }
::selection { background: var(--accent); color: var(--space); }
a { color: inherit; }
.monochrome-logo { filter: invert(1); }
img, svg { display: block; max-width: 100%; }
button, summary { font: inherit; }
a, summary { touch-action: manipulation; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
#starfield { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; opacity: .65; }
.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 200; padding: .75rem 1rem; background: var(--accent); color: var(--space); }
.skip-link:focus { top: .5rem; }
.site-topbar { position: sticky; top: 0; z-index: 100; background: #070b10ed; border-bottom: 1px solid var(--line); }
.topbar-inner { display: flex; align-items: center; gap: 2rem; min-height: 78px; width: min(var(--content), calc(100% - 3rem)); margin: auto; }
.site-brand { order: -1; display: flex; align-items: center; gap: .9rem; text-decoration: none; margin-right: auto; }
.site-brand__monogram { font-size: 1.5rem; font-weight: 750; letter-spacing: -.09em; }
.brand-dot { color: var(--accent); }
.brand-caption { font: .65rem/1.4 var(--mono); letter-spacing: .13em; }
.topbar-nav { display: flex; gap: 1.8rem; font-size: .78rem; }
.topbar-nav a { padding-block: .7rem; text-decoration: none; }
.lang-switcher { position: relative; order: 2; }
.lang-btn { display: flex; align-items: center; gap: .4rem; min-height: 44px; padding: .5rem; font: .75rem var(--mono); cursor: pointer; list-style: none; }
.lang-btn::-webkit-details-marker { display: none; }
.lang-btn__chevron { transition: transform .2s; }
.lang-switcher[open] .lang-btn__chevron { transform: rotate(180deg); }
.lang-dropdown { position: absolute; right: 0; top: 100%; min-width: 190px; padding: .4rem; margin: .4rem 0 0; list-style: none; background: #111b22; border: 1px solid var(--line); box-shadow: 0 16px 36px #0008; }
.lang-option { display: flex; align-items: center; gap: .8rem; padding: .7rem; text-decoration: none; font-size: .85rem; }
.lang-option--active { background: #b8e6d214; color: var(--accent); }
.lang-option__code { font: .7rem var(--mono); }
.lang-option__check { margin-left: auto; }
.page-shell { position: relative; width: min(var(--content), calc(100% - 3rem)); margin: auto; }
.home-page { padding: 4.5rem 0 2rem; }
.profile-hero { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); align-items: center; gap: 3rem; min-height: 580px; padding-bottom: 4rem; }
.hero-copy { min-width: 0; }
.hero-kicker, .section-label { font: .68rem/1.6 var(--mono); letter-spacing: .13em; text-transform: uppercase; color: var(--accent); margin: 0 0 1.5rem; }
.hero-kicker::before { content: "/ "; color: var(--muted); }
.profile-hero h1 { margin: 0; font-size: clamp(3.3rem, 5.7vw, 5.25rem); font-weight: 500; letter-spacing: -.055em; line-height: 1.02; }
.hero-degree { display: block; font: .95rem var(--mono); letter-spacing: 0; color: var(--muted); margin-bottom: .85rem; }
.hero-surname { color: var(--accent); }
.hero-role { color: var(--ink); max-width: 43ch; font-size: 1.1rem; line-height: 1.5; margin: 1.6rem 0 0; }
.hero-summary { max-width: 54ch; color: var(--muted); font-size: .94rem; margin: 1rem 0 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.8rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: .7rem 1.3rem; border: 1px solid var(--line); text-decoration: none; font-size: .85rem; transition: background .2s, color .2s; }
.button--primary { color: #0b1916; background: var(--accent); border-color: var(--accent); }
.button--secondary { background: #070b1080; }
.hero-socials { display: flex; gap: .4rem; margin-top: 1.4rem; }
.social-link { display: grid; place-items: center; width: 44px; height: 44px; color: var(--muted); }
.social-link svg, .social-link img { width: 20px; height: 20px; }
.hero-identity { position: relative; display: grid; place-items: center; aspect-ratio: 1; min-width: 0; }
.portrait-ring { position: relative; width: min(65%, 280px); aspect-ratio: 1; border-radius: 50%; padding: 7px; border: 1px solid #b8e6d265; background: #10232a; box-shadow: 0 0 70px #75bca31a; }
.portrait-ring picture, .portrait-ring img { display: block; width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
.orbital-grid { position: absolute; inset: 0; border: 1px solid #b8e6d225; border-radius: 50%; background: repeating-linear-gradient(0deg, transparent 0, transparent calc(25% - 1px), #b8e6d20d 25%); }
.orbital-grid::before, .orbital-grid::after { content: ""; position: absolute; inset: 10%; border: 1px solid #b8e6d23d; border-radius: 50%; }
.orbital-grid::after { inset: -6%; border-style: dashed; opacity: .4; }
.orbital-grid span { position: absolute; inset: -3% 27%; border: 1px solid #b8e6d247; border-radius: 50%; transform: rotate(48deg); }
.orbital-grid span:nth-child(2) { transform: rotate(-48deg); }
.orbital-grid span:nth-child(3) { inset: 48% -8%; transform: rotate(-28deg); border-color: #b8e6d272; }
/* Small angular arcs, not full revolutions: quiet motion behind a fixed portrait. */
@keyframes orbit-drift {
    from { transform: rotate(var(--orbit-from)); }
    to { transform: rotate(var(--orbit-to)); }
}
.orbital-grid span { --orbit-from: 43deg; --orbit-to: 55deg; animation: orbit-drift 80s ease-in-out infinite alternate; }
.orbital-grid span:nth-child(2) { --orbit-from: -55deg; --orbit-to: -43deg; animation-duration: 100s; animation-delay: -35s; }
.orbital-grid span:nth-child(3) { --orbit-from: -32deg; --orbit-to: -24deg; animation-duration: 110s; animation-delay: -55s; }
.orbital-grid.is-paused span { animation-play-state: paused; }
.orbit-caption { position: absolute; top: 110%; margin: 0; color: var(--muted); font: .6rem/1.6 var(--mono); letter-spacing: .1em; text-align: center; }
.tool-strip { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 2rem; border-block: 1px solid var(--line); padding: 1.25rem 0; margin-top: 1.5rem; }
.tool-strip__label { font: .62rem var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: .1em; }
.tool-strip__rail { display: flex; flex-wrap: wrap; gap: .5rem 1.4rem; }
.tool-strip a { display: flex; align-items: center; gap: .5rem; min-height: 44px; font-size: .8rem; text-decoration: none; }
.tool-strip__icon { width: 23px; }
.statement-section, .signal-grid, .tools-section, .contact-section { margin-top: 6rem; }
.statement-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 5rem; }
.statement-index { display: block; color: var(--muted); font: .65rem var(--mono); margin-bottom: 1.5rem; }
h2 { font-size: clamp(1.8rem, 3vw, 2.7rem); line-height: 1.18; font-weight: 450; letter-spacing: -.035em; margin: 0; text-wrap: pretty; }
.rich-text p { margin: 0 0 1rem; color: var(--muted); font-size: .95rem; }
.signal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; padding-top: 2.5rem; border-top: 1px solid var(--line); }
.focus-list { list-style: none; margin: 0; padding: 0; }
.focus-list li { position: relative; padding: .7rem 0 .7rem 1.2rem; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .91rem; }
.focus-list li::before { content: "+"; position: absolute; left: 0; color: var(--accent); }
.publication-link { font-size: .8rem; color: var(--muted); margin-top: 1.5rem; }
.publication-link a { color: var(--accent); text-underline-offset: .3em; }
.section-heading { max-width: 680px; margin-bottom: 2.5rem; }
.section-heading > p:last-child { color: var(--muted); }
.tool-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 3rem; }
.tool-row { display: block; min-width: 0; padding: 1.5rem 0; border-top: 1px solid var(--line); text-decoration: none; transition: border-color .2s; }
.tool-row__top { display: flex; align-items: center; gap: .85rem; }
.tool-row__icon { display: grid; place-items: center; width: 38px; height: 38px; background: #b8e6d209; border: 1px solid var(--line); }
.tool-row__name { font-size: 1.15rem; font-weight: 550; }
.tool-row__meta { margin-left: auto; font-size: 1.4rem; color: var(--accent); }
.tool-row__copy { display: block; padding: .75rem 2rem 0 3.25rem; }
.tool-row__headline { color: var(--muted); font-size: .9rem; }
.contact-section { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 3rem; align-items: end; border-block: 1px solid var(--line); padding: 3rem 0; }
.contact-copy > p:not(.section-label) { color: var(--muted); max-width: 56ch; font-size: .94rem; }
.contact-alt a { overflow-wrap: anywhere; text-underline-offset: .3em; }
.contact-mail { display: grid; gap: .4rem; padding: 1rem 0; color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--accent); }
.contact-mail span { font: .65rem var(--mono); text-transform: uppercase; letter-spacing: .1em; }
.contact-mail strong { font-size: 1.3rem; font-weight: 500; white-space: nowrap; }
.presentation-section { margin-top: 3rem; padding: 2rem; border: 1px solid var(--line); background: #b8e6d209; }
.presentation-link { display: flex; justify-content: space-between; align-items: center; gap: 1rem; text-decoration: none; }
.presentation-link strong { font-size: 1.5rem; font-weight: 500; }
.presentation-description { display: block; margin-top: .5rem; font-size: .9rem; color: var(--muted); }
.presentation-link > span:last-child { color: var(--accent); font-size: 1.8rem; }
.site-footer { position: relative; width: min(var(--content), calc(100% - 3rem)); margin: auto; padding-bottom: 2rem; color: var(--muted); font: .65rem/1.6 var(--mono); }
@media (hover: hover) {
    .button--primary:hover { background: #d7f4e7; }
    .button--secondary:hover, .lang-option:hover { background: #b8e6d218; }
    .tool-row:hover { border-color: var(--accent); }
    .social-link:hover, .topbar-nav a:hover, .tool-strip a:hover { color: var(--accent); }
}
@media (max-width: 960px) {
    .profile-hero { gap: 2rem; }
    .brand-caption { display: none; }
    .statement-grid { gap: 2.5rem; }
    .signal-grid { gap: 2rem; }
}
@media (max-width: 760px) {
    .topbar-inner { min-height: 64px; gap: 1rem; }
    .topbar-nav { gap: 1rem; font-size: .7rem; }
    .topbar-inner, .page-shell, .site-footer { width: calc(100% - 2.5rem); }
    .home-page { padding-top: 2.7rem; }
    .profile-hero { grid-template-columns: 1fr; gap: 3.5rem; padding-bottom: 2rem; min-height: 0; }
    .profile-hero h1 { font-size: clamp(3.1rem, 10vw, 4.5rem); }
    .hero-kicker { margin-bottom: 1.3rem; font-size: .62rem; }
    .hero-role { font-size: 1rem; }
    .hero-summary { font-size: .9rem; }
    .hero-identity { width: min(75%, 292px); margin: 0 auto 3rem; }
    .portrait-ring { width: 65%; }
    .orbit-caption { font-size: .52rem; }
    .tool-strip { margin-top: 0; gap: .6rem; }
    .tool-strip__label { width: 100%; }
    .tool-strip__rail { gap: .1rem 1rem; }
    .tool-strip a { font-size: .74rem; }
    .statement-section, .signal-grid, .tools-section, .contact-section { margin-top: 3.5rem; }
    .statement-grid, .signal-grid, .contact-section { grid-template-columns: 1fr; gap: 2rem; }
    .tool-list { grid-template-columns: 1fr; }
    .contact-mail { justify-self: start; }
}
@media (max-width: 360px) {
    .topbar-nav { gap: .6rem; }
    .topbar-inner { gap: .4rem; }
    .lang-btn { padding-inline: .2rem; }
    .lang-btn__chevron { display: none; }
    .hero-actions { gap: .5rem; }
    .button { padding-inline: 1rem; }
}
@media (prefers-reduced-motion: reduce) {
    .orbital-grid span { animation: none; }
    .button, .tool-row, .lang-btn__chevron { transition: none; }
}
@media print {
    :root { color-scheme: light; --space: white; --ink: black; --muted: #333; --accent: #164b36; --line: #bbb; }
    body::before, #starfield, .site-topbar, .hero-actions, .hero-socials, .tool-strip, .orbital-grid { display: none; }
    .page-shell { width: 100%; }
    .home-page { padding: 0; }
    .profile-hero { min-height: 0; }
    .hero-identity { display: none; }
    .profile-hero, .statement-grid { grid-template-columns: 1fr; }
    .tool-row, .signal-panel, .contact-section { break-inside: avoid; }
}