/* ============================================================
   Radiocode-Rechner — Terminal-Theme (schwarz / hellgrün)
   ============================================================ */

:root {
    --bg:         #000000;
    --bg-panel:   #060a06;
    --green:      #39ff14;   /* Neon-/Hellgrün — Primaerfarbe */
    --green-soft: #8dff7a;
    --green-dim:  #1f8a1f;
    --line:       #173f17;
    --text:       #b6ffac;
    --muted:      #5d8f5d;
    --danger:     #ff5d5d;
    --amber:      #ffb000;   /* Warn-/Notiz-Akzent (Retro-Bernstein) */
    --glow:       0 0 6px rgba(57, 255, 20, .55), 0 0 18px rgba(57, 255, 20, .25);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
    /* feines Blueprint-Raster + radialer Verlauf (dezent, fixiert) */
    background:
        linear-gradient(rgba(57, 255, 20, .03) 1px, transparent 1px) 0 0 / 34px 34px,
        linear-gradient(90deg, rgba(57, 255, 20, .03) 1px, transparent 1px) 0 0 / 34px 34px,
        radial-gradient(120% 80% at 50% -10%, #0a160a 0%, #000 60%);
    background-attachment: fixed;
    color: var(--text);
    font-family: "JetBrains Mono", Consolas, "Courier New", monospace;
    min-height: 100vh;
    line-height: 1.55;
    letter-spacing: .2px;
}

/* --- CRT-Scanlines (dezent) --- */
.scanlines {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0) 0px,
        rgba(0, 0, 0, 0) 2px,
        rgba(0, 0, 0, .18) 3px,
        rgba(0, 0, 0, .18) 3px
    );
    mix-blend-mode: multiply;
}

/* --- Layout --- */
.wrap {
    max-width: 560px;
    margin: 0 auto;
    padding: 32px 20px 48px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding-bottom: 24px;
}

.logo {
    color: var(--green);
    font-weight: 700;
    font-size: 1.15rem;
    text-decoration: none;
    text-shadow: var(--glow);
    letter-spacing: 1px;
}

.cursor {
    animation: blink 1.1s steps(1) infinite;
    margin-left: 2px;
}

@keyframes blink { 50% { opacity: 0; } }

.tag {
    color: var(--muted);
    font-size: .82rem;
}

/* --- Sprachumschalter --- */
.langs {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 3px 7px;
}

.lang {
    font-size: .72rem;
    letter-spacing: 1px;
    color: var(--muted);
    text-decoration: none;
    padding: 1px 3px;
    border-radius: 4px;
    transition: color .15s;
}

.lang:hover { color: var(--green); }

.lang.active {
    color: var(--green);
    text-shadow: var(--glow);
    border-bottom: 1px solid var(--green-dim);
}

/* --- Haupt-Navigation (Header) --- */
.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 18px;
    margin: 0 0 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
    font-size: .82rem;
}
.main-nav a {
    color: var(--muted);
    text-decoration: none;
    letter-spacing: .5px;
    transition: color .15s;
}
.main-nav a:hover { color: var(--green); }
.main-nav a.active {
    color: var(--green);
    text-shadow: var(--glow);
}

/* --- Karte --- */
.card {
    position: relative;
    background: var(--bg-panel);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 30px 26px;
    box-shadow: 0 0 0 1px rgba(57, 255, 20, .04), 0 24px 60px rgba(0, 0, 0, .6);
    flex: 1 0 auto;
}

/* HUD-Eckklammern (dezenter Interface-Akzent) */
.card::before {
    content: "";
    position: absolute;
    inset: 7px;
    pointer-events: none;
    opacity: .4;
    background:
        linear-gradient(var(--green), var(--green)) top left / 14px 1px no-repeat,
        linear-gradient(var(--green), var(--green)) top left / 1px 14px no-repeat,
        linear-gradient(var(--green), var(--green)) top right / 14px 1px no-repeat,
        linear-gradient(var(--green), var(--green)) top right / 1px 14px no-repeat,
        linear-gradient(var(--green), var(--green)) bottom left / 14px 1px no-repeat,
        linear-gradient(var(--green), var(--green)) bottom left / 1px 14px no-repeat,
        linear-gradient(var(--green), var(--green)) bottom right / 14px 1px no-repeat,
        linear-gradient(var(--green), var(--green)) bottom right / 1px 14px no-repeat;
}

h1 {
    margin: 0 0 12px;
    font-size: 1.5rem;
    color: var(--green-soft);
    text-shadow: var(--glow);
}

h1.ok { color: var(--green); }

.lead {
    margin: 0 0 24px;
    color: var(--text);
}

.lead strong { color: var(--green-soft); }

.lead-note {
    color: var(--muted);
    font-size: .9em;
}

/* --- Trust-Hinweise (ohne Registrierung, schnell, Sofort-Code) --- */
.trust {
    list-style: none;
    margin: -6px 0 22px;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.trust li {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 11px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: rgba(57, 255, 20, .04);
    font-size: .78rem;
    color: var(--green-soft);
    letter-spacing: .3px;
}
.trust li::before {
    content: "\2713";
    color: var(--green);
    text-shadow: var(--glow);
    font-weight: 700;
}

/* --- Formular --- */
.form {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 22px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.field > span {
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--green-dim);
}

/* Code-Kommentar-Praefix nur am Label (nicht an der Fehlermeldung) */
.field > span:first-child::before {
    content: "// ";
    opacity: .6;
}

select,
input[type="text"] {
    width: 100%;
    background: #000;
    border: 1px solid var(--line);
    border-radius: 7px;
    color: var(--green);
    font-family: inherit;
    font-size: 1.05rem;
    padding: 13px 14px;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}

input[type="text"] {
    letter-spacing: 4px;
    text-transform: uppercase;
}

input::placeholder { color: #2f5f2f; letter-spacing: 2px; }

select:focus,
input[type="text"]:focus {
    border-color: var(--green);
    box-shadow: var(--glow);
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    width: 100%;
    text-align: center;
    background: var(--green);
    color: #001500;
    border: 1px solid var(--green);
    border-radius: 7px;
    font-family: inherit;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: .5px;
    padding: 14px 18px;
    cursor: pointer;
    text-decoration: none;
    box-shadow: var(--glow);
    transition: transform .08s, box-shadow .15s, background .15s;
}

.btn:hover {
    background: var(--green-soft);
    box-shadow: 0 0 10px rgba(57, 255, 20, .8), 0 0 28px rgba(57, 255, 20, .4);
}

.btn:active { transform: translateY(1px); }

.btn:disabled,
.btn:disabled:hover {
    background: #0a1a0a;
    color: var(--green-dim);
    border-color: var(--line);
    box-shadow: none;
    cursor: not-allowed;
    transform: none;
}

input:disabled {
    opacity: .45;
    cursor: not-allowed;
}

.field .field-error {
    display: block;
    margin-top: 7px;
    font-size: .78rem;
    color: var(--danger);
    text-transform: none;
    letter-spacing: normal;
}

.field .field-error[hidden] { display: none; }

.btn.ghost {
    background: transparent;
    color: var(--green);
    box-shadow: none;
    margin-top: 22px;
}

.btn.ghost:hover {
    background: rgba(57, 255, 20, .08);
    box-shadow: var(--glow);
}

/* --- Code-Ausgabe --- */
.code-box {
    margin: 26px 0;
    padding: 30px 20px;
    text-align: center;
    background: #000;
    border: 1px dashed var(--green-dim);
    border-radius: 10px;
}

.code-label {
    display: block;
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--green-dim);
    margin-bottom: 12px;
}

.code {
    display: block;
    font-size: 3.2rem;
    font-weight: 700;
    letter-spacing: 14px;
    color: var(--green);
    text-shadow: 0 0 8px rgba(57, 255, 20, .8), 0 0 26px rgba(57, 255, 20, .45);
    padding-left: 14px; /* gleicht letter-spacing optisch aus */
}

/* --- Dynamischer Radio-Typ-Hilfetext --- */
.method-help {
    margin: -4px 0 4px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-left: 3px solid var(--green-dim);
    border-radius: 7px;
    background: rgba(57, 255, 20, .04);
    font-size: .84rem;
    line-height: 1.5;
}

.method-help[hidden] { display: none; }

.mh-years {
    display: block;
    color: var(--green-soft);
    margin-bottom: 5px;
}

.mh-text {
    display: block;
    color: var(--muted);
    font-size: .8rem;
}

/* --- Hinweise / Meldungen --- */
.hint {
    margin-top: 8px;
    font-size: .86rem;
    color: var(--muted);
}

.hint summary {
    cursor: pointer;
    color: var(--green-dim);
}

.hint summary:hover { color: var(--green); }

.hint p { margin: 10px 0 0; }

.alert {
    margin: 0 0 20px;
    padding: 12px 14px;
    border: 1px solid var(--danger);
    border-radius: 7px;
    color: var(--danger);
    font-size: .9rem;
    background: rgba(255, 93, 93, .06);
}

.alert.demo {
    border-color: var(--green-dim);
    color: var(--green-soft);
    background: rgba(57, 255, 20, .06);
}

/* --- Wichtiger Notiz-Hinweis (Code abschreiben) --- */
.save-note {
    margin: 0 0 20px;
    padding: 13px 15px;
    border: 1px solid var(--amber);
    border-radius: 7px;
    background: rgba(255, 176, 0, .08);
    color: var(--amber);
    font-size: .9rem;
    line-height: 1.55;
    text-shadow: 0 0 8px rgba(255, 176, 0, .3);
}

.save-note::before {
    content: "\26A0  ";
    font-weight: 700;
}

.badge-demo {
    margin-top: 22px;
    text-align: center;
    font-size: .74rem;
    letter-spacing: 1.5px;
    color: var(--green-dim);
    border-top: 1px dashed var(--line);
    padding-top: 16px;
}

/* --- SEO-Textblock (ganz unten) --- */
.seo-content {
    margin-top: 30px;
    padding-top: 26px;
    border-top: 1px dashed var(--line);
    color: var(--text);
}

.seo-content h2 {
    font-size: 1.15rem;
    color: var(--green-soft);
    text-shadow: var(--glow);
    margin: 0 0 14px;
    line-height: 1.35;
}

.seo-content h3 {
    font-size: 1rem;
    color: var(--green);
    margin: 26px 0 8px;
}

.seo-content h4 {
    font-size: .92rem;
    color: var(--green-soft);
    margin: 18px 0 5px;
}

.seo-content p {
    margin: 0 0 12px;
    font-size: .9rem;
    line-height: 1.7;
}

.seo-content strong { color: var(--green-soft); font-weight: 700; }
.seo-content em     { color: var(--green); font-style: normal; }
.seo-content a      { color: var(--green); }

.seo-content ol {
    margin: 0 0 12px;
    padding-left: 20px;
    font-size: .9rem;
    line-height: 1.7;
}

.seo-content li { margin-bottom: 6px; }

/* --- Footer --- */
.site-foot {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 26px;
    font-size: .76rem;
    color: var(--muted);
}

.site-foot .muted { color: #3f6f3f; }

/* --- Footer-Navigation --- */
.foot-links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.foot-links a {
    color: var(--muted);
    text-decoration: none;
}

.foot-links a:hover { color: var(--green); }

/* --- Cookie-Hinweis (fixiert unten) --- */
.cookie-banner {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9000;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 12px 22px;
    padding: 14px 20px;
    background: rgba(0, 0, 0, .96);
    border-top: 1px solid var(--green-dim);
    box-shadow: 0 -10px 30px rgba(0, 0, 0, .7);
}
.cookie-text {
    margin: 0;
    max-width: 720px;
    font-size: .82rem;
    color: var(--text);
}
.cookie-text a { color: var(--green); text-decoration: underline; }
.cookie-banner .btn {
    width: auto;
    margin: 0;
    padding: 9px 24px;
    font-size: .9rem;
    white-space: nowrap;
}
.cookie-banner.hide { display: none; }

/* --- Unterseiten: h3 in der Karte --- */
.card h3 {
    font-size: 1rem;
    color: var(--green);
    margin: 22px 0 8px;
}

/* --- Q&A-Seite (Akkordeon) --- */
.qa-list {
    margin: 8px 0 4px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.qa-item {
    border: 1px solid var(--line);
    border-radius: 7px;
    background: #000;
    overflow: hidden;
}

.qa-item summary {
    cursor: pointer;
    list-style: none;
    padding: 13px 38px 13px 15px;
    position: relative;
    color: var(--green-soft);
    font-size: .95rem;
}

.qa-item summary::-webkit-details-marker { display: none; }

.qa-item summary::after {
    content: "+";
    position: absolute;
    right: 15px;
    color: var(--green-dim);
    font-weight: 700;
}

.qa-item[open] summary { color: var(--green); text-shadow: var(--glow); }
.qa-item[open] summary::after { content: "\2013"; }

.qa-item p {
    padding: 0 15px 14px;
    margin: 0;
    font-size: .9rem;
    line-height: 1.6;
    color: var(--text);
}

/* --- Kontakt-CTA --- */
.contact-cta {
    margin-top: 26px;
    padding-top: 22px;
    border-top: 1px dashed var(--line);
    text-align: center;
}

.contact-lead {
    display: block;
    margin-bottom: 12px;
    color: var(--muted);
    font-size: .9rem;
}

/* --- Impressum --- */
.legal-note {
    font-size: .8rem;
    color: var(--muted);
    margin: 0 0 20px;
}

.imprint-block {
    background: #000;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px 20px;
    margin-bottom: 8px;
    line-height: 1.9;
    font-size: .92rem;
}

.imprint-block strong { color: var(--green-soft); }
.imprint-block .il { color: var(--green-dim); }
.imprint-block a { color: var(--green); text-decoration: none; }
.imprint-block a:hover { text-decoration: underline; }

.imprint-block hr {
    border: none;
    border-top: 1px dashed var(--line);
    margin: 12px 0;
}

.legal-text {
    font-size: .88rem;
    line-height: 1.7;
    color: var(--text);
    margin: 0 0 14px;
}

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

/* --- Modell-Linkliste (interne Verlinkung) --- */
.model-links {
    list-style: none;
    padding: 0;
    margin: 8px 0 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 24px;
    font-size: .86rem;
}

.model-links li { margin: 0; }
.model-links a { color: var(--green-dim); text-decoration: none; }
.model-links a:hover { color: var(--green); }

/* --- Mobil --- */
@media (max-width: 480px) {
    .card { padding: 24px 18px; }
    .code { font-size: 2.5rem; letter-spacing: 10px; padding-left: 10px; }
    h1 { font-size: 1.3rem; }
}