/* ============================================================================
   Edwin Weber · Portfolio
   Feinschliff: "Filigrane Effizienz wie in der Kunst des Webens"
   Leitmotiv  : das Webmuster der Bildmarke (Weber / Jacquard-Webstuhl → Mainframe)
   Palette    : tiefes Indigo, Webfaden-Blau, elektrisches Markenblau
   Typo       : IBM Plex Sans (Text) + IBM Plex Mono (Labels) — IBMs Hausschrift
   ============================================================================ */

:root {
    /* --- Tiefen & Flächen --- */
    --ink:        #0a1024;   /* tiefstes Indigo (Hero / Footer)           */
    --indigo:     #122247;   /* dunkles Webblau                           */
    --blue-700:   #1d3b6e;
    --blue-500:   #2a5188;   /* hellster Punkt des Verlaufs               */
    --thread:     #7ba6d6;   /* heller Webfaden                           */

    /* --- Markenfarben --- */
    --brand:      #2f86ff;   /* elektrisches Markenblau (aus #157dfe)     */
    --brand-soft: #79b2ff;
    --brand-deep: #1462d6;

    /* --- Helle Karten --- */
    --paper:      #ffffff;
    --paper-2:    #eef3fb;
    --line:       #dce6f4;

    /* --- Text --- */
    --ink-text:   #14223f;   /* Text auf hellen Karten                    */
    --muted:      #5a6a86;   /* Sekundärtext auf hell                     */
    --on-dark:    #eaf1fb;   /* Text auf dunklem Feld                     */
    --on-dark-mut:#a9bdda;

    /* --- Terminal (Mainframe Corner) --- */
    --term:       #34e07a;
    --term-dim:   #0b1f14;

    /* --- Maße --- */
    --radius:     16px;
    --radius-sm:  11px;
    --shadow:     0 18px 44px -22px rgba(4, 12, 32, .55);
    --shadow-lg:  0 34px 70px -28px rgba(4, 12, 32, .7);
    --ring:       0 0 0 1px rgba(255,255,255,.08);
    --ease:       cubic-bezier(.22,.61,.36,1);

    /* Faden-Textur als wiederverwendbarer Hintergrund */
    --weave:
        repeating-linear-gradient( 45deg, rgba(255,255,255,.045) 0 1px, transparent 1px 23px),
        repeating-linear-gradient(-45deg, rgba(255,255,255,.045) 0 1px, transparent 1px 23px);
}

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

html {
    width: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
    -webkit-text-size-adjust: 100%;
}

body {
    width: 100%;
    min-height: 100vh;
    font-family: "IBM Plex Sans", "Inter", system-ui, sans-serif;
    color: var(--on-dark);
    background-color: var(--ink);
    /* Schicht 1+2: gewobene Fadentextur (fixiert = ruhige Atmosphäre)
       Schicht 3  : durchgehender Indigo-Verlauf über die ganze Seite     */
    background-image: var(--weave),
        linear-gradient(180deg,
            var(--ink)      0%,
            #0e1a38        14%,
            var(--indigo)  30%,
            var(--blue-700) 48%,
            var(--blue-500) 60%,
            var(--blue-700) 74%,
            var(--indigo)  88%,
            var(--ink)    100%);
    background-attachment: fixed, fixed, scroll;
    background-size: 46px 46px, 46px 46px, 100% 100%;
    background-repeat: repeat, repeat, no-repeat;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* sanfter Lichtschein oben, gibt dem Hero Tiefe */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(120% 80% at 80% -10%, rgba(47,134,255,.20), transparent 55%),
        radial-gradient(90% 60% at 0% 8%, rgba(123,166,214,.12), transparent 60%);
}

/* alle Sektionen liegen über der Atmosphäre */
#home, #karriere, #ausbildung, #zertifikate, #projekte, #kontakt, #footer {
    position: relative;
    z-index: 1;
}

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

button, input, textarea, select { font-family: inherit; }

::selection { background: var(--brand); color: #fff; }

img { display: block; }

/* sichtbarer Fokus für Tastatur-Navigation */
:focus-visible {
    outline: 2px solid var(--brand-soft);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ----------------------------------------------------- Section-Header */
.header {
    width: 100%;
    padding: 0 0 2.5% 0;
    text-align: center;
}

.header .eyebrow {
    display: inline-block;
    font-family: "IBM Plex Mono", monospace;
    font-size: 11pt;
    letter-spacing: .28em;
    text-transform: uppercase;
    color: #ffffff;
    margin-bottom: 14px;
    opacity: .92;
}

.header h1 {
    font-size: clamp(26pt, 4vw, 34pt);
    font-weight: 600;
    letter-spacing: -.01em;
    color: #fff;
    line-height: 1.1;
}

.header h2 {
    font-size: clamp(12pt, 1.6vw, 15pt);
    font-weight: 300;
    color: var(--on-dark-mut);
    max-width: 60ch;
    margin: 14px auto 0;
    line-height: 1.55;
}

/* feiner Webfaden unter der Überschrift */
.header h1::after {
    content: "";
    display: block;
    width: 56px;
    height: 3px;
    margin: 18px auto 0;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--brand), var(--thread));
}

/* ----------------------------------------- Scroll-Reveal (IntersectionObserver) */
.reveal-on .reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity .7s var(--ease), transform .7s var(--ease);
    will-change: opacity, transform;
}
.reveal-on .reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
    * { scroll-behavior: auto !important; }
    .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
}

/* ------------------------------------------------------ Go-to-Top Button */
#myBtn {
    display: none;
    position: fixed;
    bottom: 24px;
    right: 26px;
    z-index: 999;
    font-size: 22px;
    border: none;
    outline: none;
    background: var(--brand);
    color: #fff;
    cursor: pointer;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    line-height: 48px;
    text-align: center;
    box-shadow: 0 10px 26px -8px rgba(47,134,255,.7);
    transition: transform .25s var(--ease), background .25s var(--ease);
}
#myBtn:hover { background: var(--brand-deep); transform: translateY(-3px); }

@media screen and (max-width: 800px) {
    .header { padding: 0 0 6% 0; }
}

/* ============================================================ NAVBAR · Desktop */
.nav {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0; left: 0;
    z-index: 998;
    padding: 12px 0;
    background: rgba(10,16,36,.55);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    backdrop-filter: blur(14px) saturate(140%);
    border-bottom: 1px solid rgba(255,255,255,.08);
    transition: background .3s var(--ease), border-color .3s var(--ease), padding .3s var(--ease);
}
.nav.scrolled {
    background: rgba(10,16,36,.82);
    padding: 8px 0;
    border-bottom-color: rgba(47,134,255,.35);
}

@media screen and (max-width: 800px) {
    .nav { display: none; }
}

.logo {
    padding-left: 5%;
    display: flex;
    align-items: center;
}
.nav .logo img {
    height: 30px;
    width: auto;
    object-fit: contain;
    display: block;
    transition: height .3s var(--ease);
}
.nav.scrolled .logo img { height: 25px; }

.links {
    display: flex;
    align-items: center;
    gap: 4px;
    padding-right: 5%;
}
.links a {
    position: relative;
    color: var(--on-dark);
    font-size: 12.5pt;
    font-weight: 400;
    padding: 9px 16px;
    border-radius: 9px;
    transition: color .25s var(--ease), background .25s var(--ease);
}
/* animierter Webfaden-Unterstrich */
.links a::after {
    content: "";
    position: absolute;
    left: 16px; right: 16px;
    bottom: 4px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--brand), var(--thread));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s var(--ease);
}
.links a:hover { color: #fff; }
.links a:hover::after,
.links a.active::after { transform: scaleX(1); }
.links a.active { color: #fff; }

/* ── Navbar · Mainframe-Sonderlink (Terminal-Stil) ──────────────────────── */
.links a.mf-navlink {
    font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 11.5pt;
    font-weight: 500;
    letter-spacing: .02em;
    color: var(--term);
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px;
    border: 1px solid rgba(52, 224, 122, .35);
    background: rgba(52, 224, 122, .07);
    border-radius: 8px;
    transition: color .25s var(--ease), background .25s var(--ease),
                border-color .25s var(--ease), box-shadow .25s var(--ease);
}
/* kein blauer Webfaden-Unterstrich für den Terminal-Link */
.links a.mf-navlink::after { display: none; }
.links a.mf-navlink .mf-navlink-prompt {
    font-weight: 600;
    color: var(--term);
    opacity: .85;
}
.links a.mf-navlink:hover {
    color: #dffbe9;
    background: rgba(52, 224, 122, .14);
    border-color: rgba(52, 224, 122, .65);
    box-shadow: 0 0 0 1px rgba(52, 224, 122, .22), 0 0 22px -6px rgba(52, 224, 122, .55);
}
.links a.mf-navlink:hover .mf-navlink-prompt { opacity: 1; }

/* ============================================================ NAVBAR · Mobile */
#burger_background { display: none; }
.menu-wrap { display: none; }
.logo-container-mobile { display: none; }

@media screen and (max-width: 800px) {
    #burger_background {
        display: block;
        background: rgba(10,16,36,.92);
        -webkit-backdrop-filter: blur(12px);
        backdrop-filter: blur(12px);
        width: 100%;
        height: 58px;
        position: fixed;
        top: 0; left: 0;
        z-index: 99997;
        border-bottom: 1px solid rgba(47,134,255,.3);
    }
    .menu-wrap {
        display: block;
        position: fixed;
        top: 0; left: 0;
        z-index: 99997;
        width: 0;
        height: 100%;
    }
    .hamburger {
        cursor: pointer;
        position: fixed;
        top: 9px; left: 14px;
        width: 40px; height: 40px;
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 99998;
    }
    .hamburger div,
    .hamburger div::before,
    .hamburger div::after {
        content: '';
        display: block;
        background: #fff;
        height: 2px;
        width: 26px;
        border-radius: 10px;
        transition: all .3s var(--ease);
    }
    .hamburger div::before { transform: translateY(-8px); }
    .hamburger div::after  { transform: translateY(8px);  }

    .toggler {
        position: absolute;
        top: 0; left: 8px;
        z-index: 99999;
        cursor: pointer;
        width: 52px; height: 52px;
        opacity: 0;
    }
    .toggler:checked + .hamburger > div { transform: rotate(135deg); }
    .toggler:checked + .hamburger > div::before { transform: rotate(90deg); opacity: 0; }
    .toggler:checked + .hamburger > div::after  { transform: rotate(90deg); }

    .menu {
        position: fixed;
        top: 0; left: 0;
        width: 72%;
        max-width: 320px;
        height: 100%;
        background: linear-gradient(160deg, var(--indigo), var(--ink));
        box-shadow: 30px 0 60px -20px rgba(0,0,0,.6);
        transform: translateX(-100%);
        transition: transform .35s var(--ease);
    }
    .menu > div { padding: 84px 26px; width: 100%; height: 100%; overflow-y: auto; }
    .menu ul { list-style: none; }
    .menu ul li { padding: 6px 0; }
    .menu ul li a {
        color: var(--on-dark);
        font-size: 15pt;
        font-weight: 300;
        display: inline-block;
        padding: 8px 0;
        border-bottom: 1px solid transparent;
        transition: color .25s var(--ease), border-color .25s var(--ease);
    }
    .menu ul li a:hover { color: var(--brand-soft); border-color: rgba(47,134,255,.4); }

    /* Mainframe-Sonderlink im Mobile-Menü (Terminal-Stil) */
    .menu ul li a.mf-navlink-mobile {
        font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
        font-size: 13pt;
        font-weight: 500;
        letter-spacing: .02em;
        color: var(--term);
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 8px 12px;
        border: 1px solid rgba(52, 224, 122, .35);
        border-radius: 9px;
        background: rgba(52, 224, 122, .07);
        transition: color .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
    }
    .menu ul li a.mf-navlink-mobile .mf-navlink-prompt { font-weight: 600; opacity: .85; }
    .menu ul li a.mf-navlink-mobile:hover {
        color: #dffbe9;
        background: rgba(52, 224, 122, .14);
        border-color: rgba(52, 224, 122, .6);
    }
    .toggler:checked ~ .menu { transform: translateX(0); }

    .logo-container-mobile {
        max-width: 120px;
        position: fixed;
        top: 11px; right: 14px;
        height: 34px;
        z-index: 99998;           /* über #burger_background (99997) */
        display: block;
    }
    .logo-container-mobile img { height: 100%; width: auto; object-fit: contain; display: block; }
}

/* ==================================================================== HOME */
#home {
    display: flex;
    flex-direction: column;
    width: 100%;
    padding: 8.5% 5% 4% 5%;
    overflow: hidden;
}

/* ----- Zwei-Spalten-Kopf: Text links · 3D-Modell rechts (gleiche Höhe) ----- */
.home_top {
    display: flex;
    flex-direction: row;
    align-items: stretch;      /* beide Spalten exakt gleich hoch */
    gap: 60px;
    width: 100%;
}

.about {
    flex: 1 1 50%;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

/* dezent gewobenes Leuchten hinter dem Intro */
.about::before {
    content: "";
    position: absolute;
    inset: -8% -12% auto -14%;
    height: 320px;
    z-index: -1;
    background:
        repeating-linear-gradient( 45deg, rgba(47,134,255,.10) 0 1px, transparent 1px 18px),
        repeating-linear-gradient(-45deg, rgba(123,166,214,.10) 0 1px, transparent 1px 18px);
    -webkit-mask: radial-gradient(70% 70% at 30% 40%, #000, transparent 75%);
    mask: radial-gradient(70% 70% at 30% 40%, #000, transparent 75%);
    opacity: .8;
    animation: weaveDrift 26s linear infinite;
}
@keyframes weaveDrift {
    to { background-position: 180px 0, -180px 0; }
}
@media (prefers-reduced-motion: reduce) { .about::before { animation: none; } }

.about_title {
    display: block;
    font-size: clamp(40pt, 7vw, 64pt);
    font-weight: 600;
    letter-spacing: -.02em;
    line-height: .98;
    color: #fff;
    animation: rise .8s var(--ease) both;
}
.about_subtitle {
    display: inline-block;
    font-size: clamp(18pt, 3vw, 30pt);
    font-weight: 500;
    letter-spacing: -.01em;
    margin-top: 6px;
    color: var(--brand-soft);
    background: linear-gradient(92deg, var(--brand), var(--thread));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: rise .8s var(--ease) .08s both;
}
.about p {
    font-size: clamp(11.5pt, 1.25vw, 13.5pt);
    line-height: 1.7;
    color: var(--on-dark-mut);
    padding: 11px 0;
    max-width: 60ch;
    animation: rise .8s var(--ease) .16s both;
}
.about h1,
.skills_block h1 {
    font-size: 17pt;
    font-weight: 600;
    color: #fff;
    margin-top: 10px;
}

/* ----- Skills: volle Breite unter dem Zwei-Spalten-Kopf ----- */
.skills_block {
    width: 100%;
    margin-top: 64px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,.10);
    position: relative;
}
.skills_block h1 {
    position: relative;
    margin: 0 0 4px;
    font-size: 20pt;
    padding-bottom: 12px;
}
/* feiner Webfaden unter dem Skills-Titel (wie Section-Header) */
.skills_block h1::after {
    content: "";
    display: block;
    width: 64px;
    height: 3px;
    margin-top: 12px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--brand), var(--thread));
}
@keyframes rise {
    from { opacity: 0; transform: translateY(22px); }
    to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
    .about_title, .about_subtitle, .about p { animation: none; }
}

/* ----- Skill-Buttons ----- */
.skill-buttons {
    margin: 14px 0 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
}
.skill-buttons button {
    padding: 9px 17px;
    border: 1px solid rgba(255,255,255,.16);
    border-radius: 999px;
    background: rgba(255,255,255,.05);
    color: var(--on-dark);
    cursor: pointer;
    font-family: "IBM Plex Mono", monospace;
    font-size: 10.5pt;
    letter-spacing: .02em;
    transition: all .25s var(--ease);
}
.skill-buttons button:hover {
    border-color: var(--brand-soft);
    color: #fff;
    transform: translateY(-2px);
}
.skill-buttons button.active {
    background: linear-gradient(135deg, var(--brand), var(--brand-deep));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 10px 24px -10px rgba(47,134,255,.8);
}

/* ----- Skill-Karten ----- */
#skillbar-section {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}
.skill-card {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 26px 20px 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
    animation: cardIn .5s var(--ease) both;
}
/* Webfaden-Kante oben (wie bei Karriere- & Zertifikat-Karten) */
.skill-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brand), var(--thread));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .4s var(--ease);
}
.skill-card:hover {
    transform: translateY(-4px);
    border-color: var(--brand-soft);
    box-shadow: var(--shadow-lg);
}
.skill-card:hover::before { transform: scaleX(1); }
@keyframes cardIn {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: none; }
}
.skill-icon {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    color: var(--brand);
    background: linear-gradient(160deg, #ffffff, var(--paper-2));
    box-shadow: inset 0 0 0 1px var(--line);
    transition: color .3s var(--ease), background .3s var(--ease), transform .3s var(--ease);
}
.skill-card:hover .skill-icon {
    color: #fff;
    background: linear-gradient(135deg, var(--brand), var(--brand-deep));
    transform: scale(1.06);
}
.skill-icon svg {
    width: 26px;
    height: 26px;
}
.skill-title {
    font-weight: 500;
    font-size: 11pt;
    line-height: 1.35;
    color: var(--ink-text);
    min-height: 2.7em;
    display: flex;
    align-items: center;
    justify-content: center;
}
.bar-container {
    width: 100%;
    height: 9px;
    background: var(--paper-2);
    border-radius: 999px;
    overflow: hidden;
    box-shadow: inset 0 0 0 1px var(--line);
}
.bar-fill {
    height: 100%;
    width: 0;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--brand-deep), var(--brand), var(--thread));
    box-shadow: 0 0 16px rgba(47,134,255,.5);
    transition: width 1.3s var(--ease);
}
.bar-percent {
    font-family: "IBM Plex Mono", monospace;
    font-size: 10pt;
    color: var(--muted);
}

@media screen and (max-width: 1100px) {
    #skillbar-section { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ----- 3D-Modell ----- */
#dreiD {
    flex: 1 1 50%;
    min-width: 0;
    min-height: 460px;        /* Sicherheitsnetz bei sehr kurzem Text */
    display: flex;
    flex-direction: column;
}
#model-container {
    flex: 1;
    width: 100%;
    height: 100%;
    overflow: hidden;
    position: relative;
    border-radius: var(--radius);
    background:
        radial-gradient(120% 90% at 50% 0%, rgba(47,134,255,.14), transparent 60%),
        rgba(10,16,36,.35);
    box-shadow: var(--ring), var(--shadow);
}
/* gewobene Ecke als Rahmen-Akzent */
#model-container::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    border-radius: inherit;
    background:
        repeating-linear-gradient(45deg, rgba(255,255,255,.05) 0 1px, transparent 1px 20px);
    -webkit-mask: radial-gradient(80% 80% at 50% 50%, transparent 60%, #000);
            mask: radial-gradient(80% 80% at 50% 50%, transparent 60%, #000);
}
#renderCanvas {
    width: 100%;
    height: 100%;
    touch-action: none;
    outline: none;
    display: block;
}

@media screen and (max-width: 800px) {
    #home { padding: 96px 6% 6%; }
    .home_top { flex-direction: column; gap: 36px; }
    .about { flex: none; max-width: 100%; }
    #dreiD { flex: none; width: 100%; height: 46vh; min-height: 360px; }
    .skills_block { margin-top: 40px; padding-top: 28px; }
    #skillbar-section { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
    .skill-card { padding: 18px 12px 14px; }
    .skill-title { font-size: 9.5pt; }
    .skill-icon { width: 42px; height: 42px; }
    .skill-icon svg { width: 21px; height: 21px; }
}

/* ================================================================ KARRIERE */
#karriere {
    display: flex;
    flex-direction: column;
    width: 100%;
    padding: 5% 5%;
}
.worksteps_container {
    display: flex;
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    width: 100%;
}
.workstep {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-content: flex-start;
    flex: 1 1 300px;
    background: var(--paper);
    border-radius: var(--radius);
    padding: 30px 26px;
    box-shadow: var(--shadow);
    text-align: left;
    border: 1px solid var(--line);
    position: relative;
    overflow: hidden;
    transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
/* Webfaden-Kante oben */
.workstep::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--brand), var(--thread));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .4s var(--ease);
}
.workstep:hover {
    transform: translateY(-7px);
    box-shadow: var(--shadow-lg);
}
.workstep:hover::before { transform: scaleX(1); }

.work_image {
    width: 64px; height: 64px;
    border-radius: 16px;
    background: linear-gradient(160deg, #ffffff, var(--paper-2));
    border: 1px solid var(--line);
    box-shadow: 0 6px 16px -8px rgba(4,12,32,.35),
                inset 0 0 0 1px rgba(255,255,255,.65);
    overflow: hidden;
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.work_image img { width: 100%; height: 100%; padding: 11px; object-fit: contain; }
.workstep:hover .work_image {
    transform: translateY(-2px) rotate(-3deg);
    box-shadow: 0 14px 26px -10px rgba(47,134,255,.55),
                inset 0 0 0 1px rgba(255,255,255,.65);
}

.work_title {
    flex: 1;
    padding: 0 0 0 14px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: var(--ink-text);
}
.work_title span { font-size: 15.5pt; font-weight: 600; line-height: 1.2; }
.work_title p {
    font-family: "IBM Plex Mono", monospace;
    font-size: 9.5pt;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--brand);
    margin-top: 4px;
}
.work_description { width: 100%; margin-top: 8px; }
.work_description p { color: var(--ink-text); font-size: 11pt; line-height: 1.6; }
.work_description span { color: var(--muted); font-size: 11pt; line-height: 1.6; }
.work_description ul {
    width: 100%;
    color: var(--muted);
    font-size: 10.5pt;
    padding: 14px 0 0 18px;
    list-style: none;
}
.work_description li { padding: 5px 0 5px 16px; position: relative; line-height: 1.5; }
.work_description li::before {
    content: "";
    position: absolute;
    left: 0; top: 11px;
    width: 6px; height: 6px;
    border-radius: 2px;
    background: var(--brand);
    transform: rotate(45deg);
}

@media screen and (max-width: 800px) {
    #karriere { padding: 12% 6%; }
    .worksteps_container { flex-direction: column; gap: 20px; }
    .workstep { flex: 1 1 100%; width: 100%; max-width: 100%; }
}

/* =============================================================== AUSBILDUNG */
#ausbildung {
    display: block;
    width: 100%;
    padding: 5% 5%;
    box-sizing: border-box;
}
.ausbildung_steps {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px 30px;
    align-items: stretch;
}
.ausbildung_step {
    flex: 1 1 calc(33.333% - 30px);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    justify-content: flex-start;
    min-width: 260px;
}
.ausbildung_time { display: flex; justify-content: center; align-items: center; position: relative; }
.circle {
    width: 104px; height: 104px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    background: linear-gradient(150deg, var(--brand), var(--blue-700));
    border: 1px solid rgba(255,255,255,.25);
    box-shadow: 0 0 0 6px rgba(47,134,255,.12), 0 14px 30px -12px rgba(47,134,255,.6);
    position: relative;
    z-index: 1;
}
.circle p {
    font-family: "IBM Plex Mono", monospace;
    font-size: 9pt;
    line-height: 1.35;
    letter-spacing: .02em;
}
.circle::after {
    content: "";
    position: absolute;
    top: 100%;                 /* startet exakt an der Unterkante des Kreises */
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 46px;              /* überbrückt genau den Abstand zur Kachel */
    background: linear-gradient(180deg, var(--brand), rgba(123,166,214,.35));
    border-radius: 2px;
}
.ausbildung_content {
    background: var(--paper);
    color: var(--ink-text);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px 24px;
    width: 100%;
    text-align: left;
    box-shadow: var(--shadow);
    margin-top: 46px;
    height: 100%;
    position: relative;
    transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
/* Webfaden-Knoten: dort wo die Linie auf die Kachel trifft */
.ausbildung_content::before {
    content: "";
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 11px; height: 11px;
    border-radius: 3px;
    background: linear-gradient(135deg, var(--brand), var(--brand-deep));
    box-shadow: 0 0 0 4px rgba(47,134,255,.12);
    z-index: 2;
}
.ausbildung_content:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.ausbildung_title { padding: 0 0 8px; color: var(--ink-text); }
.ausbildung_title span { font-size: 15pt; font-weight: 600; line-height: 1.25; display: block; }
.ausbildung_description p { color: var(--ink-text); font-size: 10.5pt; line-height: 1.55; }
.ausbildung_description span { color: var(--muted); font-size: 10.5pt; line-height: 1.6; display: block; margin-top: 8px; }
.ausbildung_description a { color: var(--brand); font-weight: 600; }
.ausbildung_description a:hover { text-decoration: underline; }

@media (max-width: 800px) {
    #ausbildung { padding: 12% 6%; }
    .ausbildung_step { flex: 1 1 calc(50% - 20px); }
}
@media (max-width: 600px) {
    .ausbildung_step { flex: 1 1 100%; }
}

/* =============================================================== ZERTIFIKATE */
#zertifikate {
    display: flex;
    flex-direction: column;
    width: 100%;
    padding: 5% 5%;
}
.zertifikat_container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    padding: 0 0 24px;
}
.zertifikat {
    flex: 1 1 calc(33.333% - 24px);
    min-width: 260px;
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--paper);
    color: var(--ink-text);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 18px 22px;
    box-shadow: var(--shadow);
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
    transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
/* Inhalt über dem Siegel-Wasserzeichen halten */
.zertifikat > * { position: relative; z-index: 1; }
/* Webfaden-Kante oben (wie bei den Karriere-Karten) */
.zertifikat::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brand), var(--thread));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .4s var(--ease);
    z-index: 2;
}
/* dezentes "Zertifiziert"-Siegel als Wasserzeichen */
.zertifikat::after {
    content: "";
    position: absolute;
    right: -10px; bottom: -10px;
    width: 78px; height: 78px;
    background: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%20fill='none'%20stroke='%232f86ff'%20stroke-width='1.4'%20stroke-linecap='round'%20stroke-linejoin='round'%3E%3Ccircle%20cx='12'%20cy='9'%20r='6'/%3E%3Cpath%20d='M9.2%209l1.9%201.9L15%207'/%3E%3Cpath%20d='M8.6%2014.2%207%2022l5-2.8%205%202.8-1.6-7.8'/%3E%3C/svg%3E") no-repeat center / contain;
    opacity: .06;
    transform: rotate(-8deg);
    transition: opacity .3s var(--ease);
    pointer-events: none;
}
.zertifikat:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--brand-soft);
}
.zertifikat:hover::before { transform: scaleX(1); }
.zertifikat:hover::after { opacity: .13; }
.zertifikat_image {
    flex: 0 0 54px;
    width: 54px; height: 54px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(160deg, #ffffff, var(--paper-2));
    border-radius: 50%;
    border: 1px solid var(--line);
    box-shadow: 0 5px 14px -8px rgba(4,12,32,.4),
                inset 0 0 0 1px rgba(255,255,255,.65);
    padding: 10px;
    transition: transform .3s var(--ease);
}
.zertifikat:hover .zertifikat_image { transform: scale(1.06); }
.zertifikat_image img { max-width: 100%; max-height: 100%; height: auto; object-fit: contain; }
.zertifikat_title { flex: 1; display: flex; align-items: center; color: var(--ink-text); }
.zertifikat_title span { font-size: 11.5pt; font-weight: 600; line-height: 1.35; width: 100%; }
.zertifikat_title p {
    font-family: "IBM Plex Mono", monospace;
    font-size: 9pt;
    letter-spacing: .04em;
    color: var(--muted);
    font-weight: 400;
    margin-top: 4px;
}

@media (max-width: 800px) {
    #zertifikate { padding: 12% 6%; }
    .zertifikat_container { gap: 16px; }
    .zertifikat { flex: 1 1 100%; }
}

/* ================================================================= PROJEKTE */
#projekte {
    display: flex;
    flex-direction: column;
    width: 100%;
    padding: 5% 5%;
    box-sizing: border-box;
}

/* ----- Mainframe Corner (Terminal-Welt) ----- */
#mainframe_corner {
    width: 100%;
    display: flex;
    flex-direction: row;
    gap: 36px;
    margin: 18px 0 50px;
    box-sizing: border-box;
    background:
        radial-gradient(120% 140% at 12% 0%, rgba(52,224,122,.10), transparent 55%),
        #06120c;
    color: var(--term);
    border-radius: var(--radius);
    border: 1px solid rgba(52,224,122,.32);
    box-shadow: 0 0 50px -18px rgba(52,224,122,.4), var(--shadow);
    padding: 40px;
    position: relative;
    overflow: hidden;
    transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
/* CRT-Scanlines */
#mainframe_corner::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: repeating-linear-gradient(0deg, rgba(52,224,122,.05) 0 1px, transparent 1px 3px);
    mix-blend-mode: screen;
    opacity: .5;
}
#mainframe_corner:hover {
    transform: translateY(-7px);
    box-shadow: 0 0 70px -16px rgba(52,224,122,.55), var(--shadow-lg);
}
.mainframe_modell {
    width: 32%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 300px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}
#canvasMainframe { width: 100%; height: 100%; touch-action: none; outline: none; display: block; }

.mainframe_description { width: 68%; box-sizing: border-box; display: flex; flex-direction: column; justify-content: center; z-index: 1; }
.mainframe_description span {
    font-family: "IBM Plex Mono", monospace;
    font-size: 17pt;
    font-weight: 600;
    letter-spacing: .01em;
    text-shadow: 0 0 18px rgba(52,224,122,.5);
}
.mainframe_description span::before { content: "> "; opacity: .7; }
.mainframe_description p {
    color: #cdeed8;
    font-family: "IBM Plex Mono", monospace;
    font-size: 10pt;
    line-height: 1.65;
    width: 100%;
    padding: 14px 0 0;
}
.mainframe_description p b { color: var(--term); font-weight: 600; }
.mf-buttons { margin-top: 6px; }
.mf-buttons button {
    margin-top: 22px;
    padding: 11px 38px;
    border: 1px solid var(--term);
    border-radius: 9px;
    background: transparent;
    color: var(--term);
    cursor: pointer;
    font-family: "IBM Plex Mono", monospace;
    font-size: 11pt;
    letter-spacing: .1em;
    text-transform: uppercase;
    transition: all .25s var(--ease);
}
.mf-buttons button:hover {
    background: var(--term);
    color: #04130a;
    box-shadow: 0 0 26px rgba(52,224,122,.7);
}

/* ----- Projekt-Karten ----- */
.projekte_container {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    align-items: stretch;
}
.projekt {
    flex: 1 1 100%;
    display: flex;
    flex-direction: column;
    background: var(--paper);
    color: var(--ink-text);
    border-radius: var(--radius);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    height: 530px;
    overflow: hidden;
    transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
    position: relative;
}
.projekt:hover {
    transform: translateY(-9px);
    box-shadow: var(--shadow-lg);
    border-color: var(--brand-soft);
}
.projekt_link {
    color: inherit;
    display: flex;
    flex: 1 1 calc(33.333% - 30px);
    min-width: 280px;
}
/* nicht-verlinkte Projekte gleich breit halten */
.projekte_container > .projekt { flex: 1 1 calc(33.333% - 30px); min-width: 280px; }

/* Bilder: überall exakt gleiche Höhe */
.projekt_image { flex: 0 0 210px; height: 210px; width: 100%; overflow: hidden; background: var(--paper-2); position: relative; }
.projekt_image img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.projekt:hover .projekt_image img { transform: scale(1.07); }

/* Textboxen: füllen den Rest der Kachel → überall gleich hoch */
.projekt_description {
    flex: 1 1 auto;
    min-height: 0;
    overflow: hidden;
    padding: 20px 22px 24px;
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--line);
    background: var(--paper);
}
.projekt_description span { font-size: 15.5pt; font-weight: 600; line-height: 1.2; }
.projekt_description p { color: var(--muted); font-size: 10.5pt; line-height: 1.55; padding-top: 8px; }
.projekt_description p b { color: var(--ink-text); font-weight: 600; }

@media (max-width: 1150px) {
    .projekt_link, .projekte_container > .projekt { flex: 1 1 calc(50% - 30px); }
}
@media (max-width: 800px) {
    #mainframe_corner { flex-direction: column; padding: 28px; }
    .mainframe_modell { width: 100%; min-height: 220px; }
    .mainframe_description { width: 100%; }
    #projekte { padding: 12% 6%; }
    .projekt_link, .projekte_container > .projekt { flex: 1 1 100%; }
}

/* ================================================================== KONTAKT */
#kontakt {
    width: 100%;
    padding: 5% 5%;
    box-sizing: border-box;
}
.kontakt_container {
    display: flex;
    gap: 36px;
    align-items: stretch;
    flex-wrap: nowrap;
}
.kontakt_me {
    flex: 0 0 46%;
    position: relative;
    min-height: 460px;
    overflow: hidden;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid rgba(255,255,255,.1);
}
.profil_foto {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center 22%;
    transform-origin: center;
    transition: transform .8s var(--ease);
}
/* sanfter Verlauf, damit die Info-Box lesbar bleibt */
.kontakt_me::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(8,14,32,.78) 0%, rgba(8,14,32,.10) 42%, transparent 70%);
}
.kontakt_me:hover .profil_foto { transform: scale(1.04); }
.profil_info {
    position: absolute;
    left: 22px; right: 22px;
    bottom: 22px;
    z-index: 1;
    background: rgba(12,20,42,.55);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    padding: 20px 22px;
    border-radius: 13px;
    border: 1px solid rgba(255,255,255,.14);
    box-shadow: 0 18px 40px -18px rgba(0,0,0,.6);
}
.profil_info h3 { margin: 0 0 5px; font-size: 18pt; font-weight: 600; color: #fff; }
.profil_info p { margin: 0 0 12px; color: var(--on-dark-mut); font-size: 11pt; }
.socials { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.socials a {
    color: var(--brand-soft);
    font-family: "IBM Plex Mono", monospace;
    font-size: 10pt;
    font-weight: 500;
    transition: color .2s var(--ease);
}
.socials a:hover { color: #fff; }

.kontakt_form {
    flex: 1;
    background: var(--paper);
    color: var(--ink-text);
    padding: 30px 30px 32px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    box-sizing: border-box;
    box-shadow: var(--shadow);
}
.kontakt_form h3 { font-size: 16pt; font-weight: 600; color: var(--ink-text); }
.kontakt_form form { display: flex; flex-direction: column; }
.kontakt_form label { font-size: 10.5pt; font-weight: 500; margin-bottom: 6px; color: var(--ink-text); }
.kontakt_form input,
.kontakt_form textarea {
    padding: 12px 14px;
    margin-bottom: 16px;
    border: 1px solid var(--line);
    border-radius: 10px;
    font-size: 11pt;
    font-family: inherit;
    color: var(--ink-text);
    background: var(--paper-2);
    box-sizing: border-box;
    transition: border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}
.kontakt_form input:focus,
.kontakt_form textarea:focus {
    outline: none;
    border-color: var(--brand);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(47,134,255,.14);
}
.kontakt_form textarea { min-height: 140px; resize: vertical; }

.send_btn {
    padding: 13px 20px;
    margin-top: 4px;
    font-size: 12pt;
    font-weight: 600;
    border: none;
    border-radius: 11px;
    cursor: pointer;
    color: #fff;
    background: linear-gradient(135deg, var(--brand), var(--brand-deep));
    box-shadow: 0 14px 30px -12px rgba(47,134,255,.8);
    transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.send_btn:hover { transform: translateY(-2px); box-shadow: 0 20px 40px -14px rgba(47,134,255,.9); }
.send_btn:active { transform: translateY(0); }

@media (max-width: 800px) {
    #kontakt { padding: 12% 6%; }
    .kontakt_container { flex-direction: column; gap: 20px; }
    .kontakt_me, .kontakt_form { flex: 0 0 100%; }
    .kontakt_me { min-height: 420px; }
    .profil_info { left: 16px; right: 16px; }
}

/* =================================================================== FOOTER */
#footer {
    width: 100%;
    display: block;
    padding: 26px 0;
    text-align: center;
    background: transparent;
    color: var(--on-dark-mut);
    border-top: 1px solid rgba(255,255,255,.08);
    font-size: 10.5pt;
}
#footer a { color: var(--brand-soft); transition: color .2s var(--ease); }
#footer a:hover { color: #fff; }