/* thomas.lattner.info – Transformation Assurance
   Schriften lokal eingebunden (keine Verbindung zu Drittanbietern). */

@font-face { font-family: "Literata"; src: url("../fonts/literata-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Literata"; src: url("../fonts/literata-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Literata"; src: url("../fonts/literata-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Source Sans 3"; src: url("../fonts/source-sans-3-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Source Sans 3"; src: url("../fonts/source-sans-3-latin-700-normal.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }

:root {
    --paper: #F6F8F7;
    --ink: #1E3D35;
    --ink-soft: #34514A;
    --fir: #2A5953;
    --fir-deep: #173F34;
    --moss: #DFEAE3;
    --lichen: #B7CCC0;
    --ochre: #C98A1B;

    --serif: "Literata", Georgia, "Times New Roman", serif;
    --sans: "Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;

    --step--1: 1rem;
    --step-0: clamp(1.125rem, 1.02rem + 0.35vw, 1.25rem);
    --step-1: clamp(1.3rem, 1.15rem + 0.5vw, 1.5rem);
    --step-2: clamp(1.6rem, 1.2rem + 1.4vw, 2.1rem);
    --step-3: clamp(2.3rem, 1.4rem + 3.6vw, 4.1rem);

    --space: clamp(4rem, 3rem + 4vw, 7rem);
    --wrap: 68rem;
    --measure: 42rem;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: var(--step-0);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    font-family: var(--serif);
    font-weight: 600;
    line-height: 1.15;
    margin: 0 0 1rem;
    letter-spacing: -0.01em;
}
h2 { font-size: var(--step-2); }
h3 { font-size: var(--step-1); }
p { margin: 0 0 1.1rem; }

a { color: var(--fir); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--ochre); outline-offset: 3px; border-radius: 2px; }

.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }
.prose { max-width: var(--measure); }
.wrap.prose { max-width: none; }
.wrap.prose > * { max-width: var(--measure); }

.skip {
    position: absolute; left: 1rem; top: -4rem;
    background: var(--fir); color: #fff; padding: 0.6rem 1rem; z-index: 10;
}
.skip:focus { top: 1rem; }

/* Kopf */
.site-header {
    position: sticky; top: 0; z-index: 5;
    background: color-mix(in srgb, var(--paper) 92%, transparent);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--moss);
}
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    gap: 1.5rem; padding-block: 0.9rem; flex-wrap: wrap;
}
.brand { text-decoration: none; color: var(--ink); display: flex; align-items: center; gap: 1.1rem; line-height: 1.2; }
.brand-logo { display: block; width: 200px; height: auto; }
.brand-text { display: flex; flex-direction: column; padding-left: 1.1rem; border-left: 1px solid var(--lichen); }
.brand-name { font-family: var(--serif); font-weight: 600; font-size: 1.15rem; }
.brand-claim { font-size: var(--step--1); color: var(--ink-soft); }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem; }
.site-nav a { color: var(--ink); text-decoration: none; font-size: 1.05rem; }
.site-nav a:hover { color: var(--fir); text-decoration: underline; }

/* Einstieg */
.hero { padding-block: clamp(4rem, 3rem + 7vw, 9rem) clamp(3rem, 2rem + 4vw, 6rem); }
.hero-title {
    font-size: var(--step-3);
    line-height: 1.08;
    max-width: 21ch;
    margin-bottom: 1.6rem;
}
.hero-title span { display: block; }
.hero-title span + span { font-weight: 400; color: var(--fir); }
.hero-lead { font-size: var(--step-1); max-width: 40ch; color: var(--ink); margin-bottom: 2.2rem; }

.actions { display: flex; flex-wrap: wrap; gap: 0.9rem 1.2rem; align-items: center; }
.button {
    display: inline-block; text-decoration: none; font-weight: 700;
    padding: 0.85rem 1.4rem; border-radius: 3px; border: 2px solid transparent;
    transition: background-color 0.15s ease, color 0.15s ease;
}
.button-primary { background: var(--fir); color: #fff; }
.button-primary:hover { background: var(--fir-deep); }
.button-quiet { color: var(--fir); border-color: var(--lichen); }
.button-quiet:hover { border-color: var(--fir); }
.button-light { background: var(--paper); color: var(--fir-deep); }
.button-light:hover { background: #fff; }

/* Abschnitte */
.section { padding-block: var(--space) 0; }
.section:last-of-type { padding-bottom: var(--space); }
.emphasis { font-family: var(--serif); font-size: var(--step-1); line-height: 1.4; }

/* Drei Ebenen als tragender Querschnitt */
.section-layers .prose:first-child { margin-bottom: 2.5rem; }
.layers { display: grid; gap: 0; margin-bottom: 2.5rem; }
.layer {
    padding: 1.6rem clamp(1.2rem, 1rem + 1.5vw, 2.2rem);
    border-left: 6px solid var(--fir);
}
.layer h3 { margin-bottom: 0.5rem; }
.layer p { margin: 0; max-width: 46rem; }
.layer-top  { background: var(--moss); width: min(100%, 72%); margin-left: 28%; }
.layer-mid  { background: var(--lichen); width: min(100%, 86%); margin-left: 14%; }
.layer-base { background: var(--fir); color: #fff; border-left-color: var(--fir-deep); }
.layer-base h3 { color: #fff; }
.ground {
    height: 14px;
    background: repeating-linear-gradient(135deg, var(--ink) 0 2px, transparent 2px 9px);
    opacity: 0.55;
}
.keywords { color: var(--ink-soft); }
.keywords strong { color: var(--ink); }

/* Zwei Wege */
.two-ways { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 2rem 3.5rem; max-width: 58rem; }
.two-ways > div { border-top: 2px solid var(--fir); padding-top: 1.2rem; }

/* Referenzen */
.references { margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); gap: 0 3.5rem; }
.reference { padding-block: 1.1rem; border-bottom: 1px solid var(--lichen); }
.reference dt { font-family: var(--serif); font-weight: 600; font-size: 1.2rem; margin-bottom: 0.25rem; }
.reference dd { margin: 0; color: var(--ink-soft); }

/* Stimmen */
.section-voices { background: var(--moss); padding-bottom: var(--space); margin-top: var(--space); }
.voices { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 2.5rem; }
.voice { margin: 0; }
.voice blockquote { margin: 0 0 0.9rem; }
.voice blockquote p { font-family: var(--serif); font-style: italic; font-size: 1.2rem; line-height: 1.55; margin: 0; }
.voice figcaption { font-weight: 700; color: var(--fir); }

/* Über mich */
.about { display: grid; grid-template-columns: minmax(12rem, 18rem) 1fr; gap: 2.5rem 4rem; align-items: start; }
.portrait img { width: 100%; height: auto; display: block; border-radius: 3px; }
.monogram {
    aspect-ratio: 4 / 5; display: grid; place-items: center;
    background: var(--fir); color: var(--paper);
    font-family: var(--serif); font-size: 4rem; border-radius: 3px;
}
.small-heading { font-family: var(--sans); font-size: 1.05rem; font-weight: 700; margin-top: 1.8rem; margin-bottom: 0.6rem; }
.qualifications { margin: 0; padding-left: 1.1rem; columns: 2 16rem; column-gap: 2rem; }
.qualifications li { margin-bottom: 0.3rem; break-inside: avoid; }

/* Kontakt */
.section-contact { background: var(--fir-deep); color: var(--paper); margin-top: var(--space); }
.section-contact h2 { color: #fff; max-width: 20ch; }
.contact { display: grid; grid-template-columns: 1.3fr 1fr; gap: 2.5rem 4rem; align-items: start; }
.agenda { margin: 0; padding-left: 1.2rem; font-size: var(--step-1); line-height: 1.6; }
.contact-ways .button { margin-bottom: 1.6rem; }
.contact-ways p { margin-bottom: 0.6rem; }
.contact-ways a:not(.button) { color: #fff; }
.contact-ways .label { display: inline-block; min-width: 5.5rem; color: var(--lichen); }
.section-contact :focus-visible { outline-color: var(--ochre); }

/* Fuß */
.site-footer { background: var(--fir-deep); color: var(--lichen); border-top: 1px solid rgba(255,255,255,0.12); font-size: var(--step--1); }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.8rem 2rem; padding-block: 1.4rem; }
.site-footer p { margin: 0; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 1.5rem; }
.site-footer a { color: var(--paper); }

/* Rechtstexte */
.legal { padding-block: clamp(3rem, 2rem + 4vw, 6rem); }
.legal h1 { font-size: var(--step-2); margin-bottom: 2rem; }
.legal h2 { font-size: var(--step-1); margin-top: 2.2rem; }
.legal .todo { background: #FFF3D6; border-left: 4px solid var(--ochre); padding: 0.2rem 0.5rem; }

@media (max-width: 52rem) {
    .about, .contact { grid-template-columns: 1fr; }
    .portrait { max-width: 14rem; }
    .layer-top { width: 88%; margin-left: 12%; }
    .layer-mid { width: 94%; margin-left: 6%; }
}
@media (max-width: 64rem) {
    .brand-text { display: none; }
}
@media (max-width: 40rem) {
    .brand-logo { width: 170px; }
    .site-nav ul { gap: 0.3rem 1rem; }
    .site-nav a { font-size: 1rem; }
    .header-inner { padding-block: 0.7rem; }
}

@media print {
    .site-header, .actions, .contact-ways .button { display: none; }
    .section-contact, .site-footer, .section-voices { background: none; color: var(--ink); }
    .section-contact h2, .contact-ways a:not(.button) { color: var(--ink); }
}