/* ============================================================
   Shaher Jamal Eddin — personal site
   Style: light, professional, eisenmann-style clean one-pager
   Stack: vanilla CSS, no frameworks
   ============================================================ */

/* ---------- Fonts (self-hosted; no third-party requests) ----------
   Inter variable font, served from /assets/fonts. The unicode-range
   split lets browsers download only the subset(s) actually used by
   the rendered text (latin alone is enough for English/German).
   Source: @fontsource-variable/inter (Inter by Rasmus Andersson, OFL).
   ---------------------------------------------------------------- */
@font-face {
    font-family: "Inter";
    font-style: normal;
    font-display: swap;
    font-weight: 100 900;
    src: url("assets/fonts/inter-latin-wght-normal.woff2") format("woff2-variations");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6,
                   U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F,
                   U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: "Inter";
    font-style: normal;
    font-display: swap;
    font-weight: 100 900;
    src: url("assets/fonts/inter-latin-ext-wght-normal.woff2") format("woff2-variations");
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7,
                   U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF,
                   U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB,
                   U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ---------- Design tokens ---------- */
:root {
    --color-bg: #ffffff;
    --color-surface: #fafaf8;
    --color-text: #1a1a1a;
    --color-text-soft: #4a4a4a;
    --color-text-muted: #666666;
    --color-rule: #e6e6e1;
    --color-accent: #1f4f8b;
    --color-accent-hover: #163a66;

    --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
                 Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

    --maxw: 720px;
    --space-1: 0.5rem;
    --space-2: 1rem;
    --space-3: 1.5rem;
    --space-4: 2.5rem;
    --space-5: 4rem;
    --space-6: 6rem;

    --radius: 6px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: 17px;
    line-height: 1.65;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

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

a {
    color: var(--color-accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: color 0.15s ease, border-color 0.15s ease;
}

a:hover {
    color: var(--color-accent-hover);
    border-bottom-color: currentColor;
}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 2px;
}

main:focus-visible { outline: none; }

/* ---------- Accessibility utilities ---------- */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    left: 0;
    top: -40px;
    background: var(--color-accent);
    color: #fff;
    padding: 0.6rem 1rem;
    border-bottom: none;
    border-radius: 0 0 var(--radius) 0;
    z-index: 1000;
    transition: top 0.15s ease;
}

.skip-link:focus,
.skip-link:focus-visible {
    top: 0;
    outline: none;
    color: #fff;
}

/* ---------- Layout ---------- */
.container {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: var(--space-5) var(--space-3) var(--space-4);
}

/* ---------- Hero ---------- */
.hero {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: var(--space-3);
    align-items: start;
    padding-bottom: var(--space-5);
    border-bottom: 1px solid var(--color-rule);
}

.hero__photo {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--color-surface);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04),
                0 0 0 1px var(--color-rule) inset;
}

.hero__photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 25%;
}

.hero__intro { min-width: 0; }

.eyebrow {
    margin: 0 0 var(--space-1);
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    font-weight: 500;
}

.hero h1 {
    margin: 0 0 var(--space-1);
    font-size: clamp(1.85rem, 4vw, 2.4rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
    font-weight: 700;
}

.tagline {
    margin: 0 0 var(--space-3);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--color-accent);
}

.hero__lead {
    margin: 0 0 var(--space-3);
    color: var(--color-text-soft);
    font-size: 1rem;
    line-height: 1.7;
}

.hero__links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem var(--space-2);
    font-size: 0.95rem;
}

.hero__links li::after {
    content: "·";
    margin-left: var(--space-2);
    color: var(--color-text-muted);
}

.hero__links li:last-child::after { content: ""; margin: 0; }

/* ---------- Overview row (replaces .marks "at-a-glance") ----------
   Three quiet stat cells between hero and About. Big number, small
   uppercase label. No icons, no decoration. Replaces the old dot-
   separated single line with hierarchy.
   ----------------------------------------------------------------- */
.overview {
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-rule);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3);
}

.overview__item .num {
    display: block;
    font-size: 1.85rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.1;
    letter-spacing: -0.015em;
    font-feature-settings: "tnum";
}

.overview__item .num .unit {
    font-size: 1rem;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-left: 0.15rem;
    letter-spacing: 0;
}

.overview__item .label {
    display: block;
    margin-top: 0.4rem;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    font-weight: 500;
    line-height: 1.45;
}

@media (max-width: 560px) {
    .overview { grid-template-columns: 1fr; gap: var(--space-2); }
    .overview__item .num { font-size: 1.5rem; }
}

/* ---------- Sections ---------- */
.section {
    padding: var(--space-5) 0;
    border-bottom: 1px solid var(--color-rule);
}

.section:last-of-type { border-bottom: none; }

/* ---------- Section header (NEW two-line treatment) ----------
   Replaces the old quiet single-line "01 / ABOUT" with a stronger
   chapter heading:

     ──────                        ← hairline rule
     01           BACKGROUND       ← kicker (small caps, muted)
                  About            ← title (1.5rem, semibold, text)

   Left rail holds the section number in mono (auto-counted).
   Right column holds the kicker + the real heading.
   ----------------------------------------------------------------- */
main { counter-reset: section; }

.section__head {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: var(--space-2);
    align-items: baseline;
    margin: 0 0 var(--space-3);
}

.section__num {
    counter-increment: section;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 0.06em;
    padding-top: 0.4rem;
    border-top: 1px solid var(--color-text);
    display: block;
}

.section__num::before {
    content: counter(section, decimal-leading-zero);
}

.section__kicker {
    display: block;
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-bottom: 0.35rem;
}

.section__title {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.2;
    letter-spacing: -0.015em;
}

.section__body {
    color: var(--color-text-soft);
}

.section__body p {
    margin: 0 0 var(--space-2);
}

.section__body p:last-child { margin-bottom: 0; }

.section__body strong {
    color: var(--color-text);
    font-weight: 600;
}

/* ---------- Current role bullets ---------- */
.role {
    margin: 0 0 var(--space-2);
    color: var(--color-text);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.5;
}

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

.bullets li {
    position: relative;
    padding-left: 1.2rem;
    margin-bottom: var(--space-1);
    line-height: 1.6;
}

.bullets li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.7em;
    width: 6px;
    height: 1px;
    background: var(--color-text-muted);
}

/* ---------- Role bullets (NEW — replaces hyphen bullets in "What I'm doing now") ---
   Each bullet gets a small monospace category tag in its own left
   column. Mirrors the timeline structure so the section feels part
   of the same system. The tag carries semantic weight — readers can
   skim the rail to see the shape of the role.
   ----------------------------------------------------------------- */
.role-bullets {
    list-style: none;
    margin: 0;
    padding: 0;
}

.role-bullets li {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    border-top: 1px dashed var(--color-rule);
    align-items: baseline;
}

.role-bullets li:first-child {
    border-top: none;
    padding-top: 0;
}

.role-bullets__tag {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    line-height: 1.5;
    padding-top: 0.15rem;
    /* Tags up to ~12 chars fit single-line; longer ones wrap. */
}

.role-bullets__text {
    color: var(--color-text-soft);
    line-height: 1.6;
}

.role-bullets__text strong {
    color: var(--color-text);
    font-weight: 600;
}

/* ---------- Timeline (used in "Selected experience" and "Education") ---- */
.timeline-item {
    display: grid;
    grid-template-columns: 96px 1fr;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    border-top: 1px dashed var(--color-rule);
}

.timeline-item:first-child {
    border-top: none;
    padding-top: 0;
}

.timeline-item__date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
    padding-top: 0.2em;
    white-space: nowrap;
}

.timeline-item__role {
    margin: 0 0 0.15rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
}

.timeline-item__org {
    margin: 0 0 var(--space-1);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.timeline-item__body p {
    margin: 0 0 var(--space-1);
    line-height: 1.65;
}

.timeline-item__body p:last-child { margin-bottom: 0; }
.timeline-item__body .bullets { margin-top: var(--space-1); }

/* ---------- Skills subsections ---------- */
.skills-subsection {
    padding: var(--space-3) 0;
    border-top: 1px dashed var(--color-rule);
}

.skills-subsection:first-child {
    border-top: none;
    padding-top: 0;
}

.skills-subsection h3 {
    margin: 0 0 var(--space-2);
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--color-text-muted);
}

.skills-subsection p { margin: 0 0 var(--space-1); }
.skills-subsection p:last-child { margin-bottom: 0; }

/* ---------- Technical skills — definition list (NEW) ----------
   Replaces the hyphen-bullet list inside "Technical skills".
   Each entry: small-caps label on its own line, then values
   separated by middle dots.
   ---------------------------------------------------------------- */
.skills-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.skills-list > li {
    margin: 0 0 var(--space-2);
}

.skills-list > li:last-child { margin-bottom: 0; }

.skills-list .skills-list__label {
    display: block;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.skills-list .skills-list__values {
    color: var(--color-text-soft);
    line-height: 1.65;
}

.skills-list .skills-list__values .also {
    color: var(--color-text-muted);
    font-style: italic;
    margin: 0 0.2rem;
}

/* ---------- Languages — two-column key/value (NEW) ----------
   No flags. Levels in the mono font so they read like data.
   ---------------------------------------------------------------- */
.languages {
    list-style: none;
    margin: 0;
    padding: 0;
}

.languages li {
    display: grid;
    grid-template-columns: 120px 1fr;
    padding: 0.45rem 0;
    border-top: 1px dashed var(--color-rule);
    align-items: baseline;
}

.languages li:first-child { border-top: none; padding-top: 0; }

.languages .lang {
    color: var(--color-text);
    font-weight: 500;
}

.languages .level {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
}

.languages__note {
    margin: var(--space-2) 0 0;
    color: var(--color-text-muted);
    font-size: 0.92rem;
}

/* ---------- Certifications shelf (NEW) ----------
   Replaces the hyphen-bullet list. Two-column grid:
   credential + issuer on the left, date right-aligned in mono.
   No logos. Hairline dashed rules between entries.
   ---------------------------------------------------------------- */
.certs {
    list-style: none;
    margin: 0;
    padding: 0;
}

.certs li {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    border-top: 1px dashed var(--color-rule);
    align-items: baseline;
}

.certs li:first-child { border-top: none; padding-top: 0; }

.certs__name {
    display: block;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.98rem;
    margin-bottom: 0.1rem;
    line-height: 1.35;
}

.certs__issuer {
    display: block;
    color: var(--color-text-muted);
    font-size: 0.88rem;
    line-height: 1.5;
}

.certs__meta {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
    white-space: nowrap;
    text-align: right;
}

/* ---------- Reading aside (REPLACES old .reading / .shelf) ----------
   Books are a small personal-interest signal, not a structured shelf.
   A single inline list of italic titles with middle dots, each linking
   to Goodreads. No authors, no dividers, no per-row affordances.
   ----------------------------------------------------------------- */
.reading-inline {
    margin: 0 0 var(--space-2);
    color: var(--color-text);
    line-height: 1.85;
}

.reading-inline em {
    font-style: italic;
}

.reading-inline a {
    color: var(--color-accent);
}

/* ---------- Contact ---------- */
.section--contact .contact-links {
    margin-top: var(--space-2);
    font-size: 1rem;
    color: var(--color-text-muted);
}

.section--contact .contact-links span {
    margin: 0 0.4rem;
}

/* ---------- Footer ---------- */
.footer {
    padding-top: var(--space-4);
    color: var(--color-text-muted);
    font-size: 0.85rem;
    text-align: left;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--space-1) var(--space-2);
}

.footer p { margin: 0; }

.footer__monogram {
    height: 22px;
    width: auto;
    display: inline-block;
    vertical-align: -6px;
    margin-right: var(--space-1);
    opacity: 0.9;
}

.footer__links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.footer__links a { color: var(--color-text-muted); }
.footer__links a:hover { color: var(--color-accent); }

/* ---------- Legal pages (Impressum, Datenschutz) ---------- */
.legal {
    padding-top: var(--space-3);
    color: var(--color-text-soft);
}

.legal__back {
    display: inline-block;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--space-3);
}

.legal h1 {
    margin: 0 0 var(--space-4);
    font-size: clamp(1.6rem, 3vw, 2rem);
    line-height: 1.2;
    letter-spacing: -0.015em;
    font-weight: 700;
    color: var(--color-text);
}

.legal h2 {
    margin: var(--space-4) 0 var(--space-1);
    font-size: 0.82rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    font-weight: 600;
}

.legal p {
    margin: 0 0 var(--space-2);
    line-height: 1.7;
}

.legal address {
    font-style: normal;
    line-height: 1.7;
    margin: 0 0 var(--space-2);
    color: var(--color-text);
}

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

.legal__updated {
    margin-top: var(--space-4);
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-rule);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ---------- Responsive ---------- */
@media (max-width: 560px) {
    .container {
        padding: var(--space-4) var(--space-2) var(--space-3);
    }

    .hero {
        grid-template-columns: 1fr;
        gap: var(--space-2);
        padding-bottom: var(--space-4);
    }

    .hero__photo { width: 110px; height: 110px; }
    .hero h1 { font-size: 1.7rem; }

    .section { padding: var(--space-4) 0; }

    .section__head {
        grid-template-columns: 48px 1fr;
        gap: var(--space-1);
    }

    .section__title { font-size: 1.3rem; }

    .timeline-item {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }

    .timeline-item__date { padding-top: 0; }

    .role-bullets li {
        grid-template-columns: 1fr;
        gap: 0.2rem;
    }
    .role-bullets__tag { padding-top: 0; }

    .languages li { grid-template-columns: 90px 1fr; }

    .certs li {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }
    .certs__meta { text-align: left; }
}

/* ---------- Print (clean printable CV view) ---------- */
@media print {
    body { font-size: 11pt; color: #000; background: #fff; }
    .container { max-width: 100%; padding: 0; }
    a { color: #000; border-bottom: none; }
    .hero, .section { border: none; padding: 1rem 0; }
    .hero__photo { display: none; }
    .hero { grid-template-columns: 1fr; }
    .overview { border: none; padding: 0.5rem 0; }
    .section__num { border-top-color: #000; }
    .footer__monogram { display: none; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * { transition: none !important; }
}