/* ========================================================================
   BRAXXEL – MODERNES RESPONSIVES DESIGN
   Ersatz für die bisherige style.css
   ======================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --primary: #0b4f8a;
    --primary-dark: #07345c;
    --primary-light: #e8f3fc;
    --accent: #1f83d1;
    --success: #1f9d62;
    --danger: #d63c3c;
    --warning: #d99520;
    --ink: #172231;
    --muted: #66758a;
    --line: #dce4ed;
    --surface: #ffffff;
    --surface-soft: #f4f7fa;
    --page: #eaf0f5;
    --shadow-sm: 0 4px 14px rgba(12, 42, 70, .08);
    --shadow-md: 0 12px 34px rgba(12, 42, 70, .14);
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 22px;
    --transition: 180ms ease;
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--ink);
    background:
        radial-gradient(circle at top right, rgba(31, 131, 209, .16), transparent 30rem),
        linear-gradient(145deg, #f8fbfd 0%, var(--page) 100%);
    font-family: Inter, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}

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

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

button,
input[type="submit"],
input[type="button"],
input[type="reset"] {
    min-height: 44px;
    padding: .72rem 1rem;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border: 0;
    border-radius: var(--radius-sm);
    box-shadow: 0 6px 16px rgba(11, 79, 138, .2);
    font-weight: 700;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

button:hover,
input[type="submit"]:hover,
input[type="button"]:hover,
input[type="reset"]:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 22px rgba(11, 79, 138, .26);
    filter: brightness(1.04);
}

button:active,
input[type="submit"]:active,
input[type="button"]:active,
input[type="reset"]:active {
    transform: translateY(0);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid rgba(31, 131, 209, .25);
    outline-offset: 2px;
}

input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not([type="button"]):not([type="reset"]),
select,
textarea {
    width: 100%;
    min-height: 44px;
    padding: .72rem .85rem;
    color: var(--ink);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    box-shadow: inset 0 1px 2px rgba(22, 38, 56, .04);
    transition: border-color var(--transition), box-shadow var(--transition);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(31, 131, 209, .12);
    outline: 0;
}

label {
    display: inline-block;
    margin-bottom: .35rem;
    color: #3e4d60;
    font-weight: 600;
}

/* Hilfsklassen */
.clear {
    display: block;
    clear: both;
    width: 0;
    height: 0;
    visibility: hidden;
}

.hover,
.druck,
.del,
#open {
    cursor: pointer;
}

.sichtbar {
    display: table-row !important;
}

/* Meldungen */
.pass_falsch,
#warnung,
#emailbestaetigung {
    width: min(100%, 520px);
    margin: 1rem auto;
    padding: .8rem 1rem;
    color: #fff;
    background: var(--danger);
    border: 0;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    font-size: .98rem;
    font-weight: 700;
    text-align: center;
}

#emailbestaetigung {
    background: var(--success);
}

#breite {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 50;
    min-width: 80px;
    padding: .35rem .55rem;
    color: #fff;
    background: rgba(8, 31, 53, .8);
    border-radius: var(--radius-sm);
    font-size: .85rem;
    text-align: center;
    backdrop-filter: blur(8px);
}

/* ========================================================================
   LOGIN
   Funktioniert mit den bisherigen Selektoren #form und #logo
   ======================================================================== */

#form {
    width: min(92%, 430px);
    margin: clamp(2rem, 9vh, 7rem) auto;
    padding: clamp(1.4rem, 4vw, 2.3rem);
    text-align: left;
    background: rgba(255, 255, 255, .92);
    border: 1px solid rgba(255, 255, 255, .7);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(14px);
}

#form::before {
    display: block;
    margin-bottom: 1.2rem;
    color: var(--primary-dark);
    content: "Anmeldung";
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 800;
    letter-spacing: -.03em;
    text-align: center;
}

#form form {
    display: grid;
    gap: .9rem;
}

#form input,
#form select,
#form textarea {
    margin: .2rem 0;
}

#form input[type="submit"],
#form button,
#taste {
    width: 100%;
    margin-top: .45rem;
}

#logo {
    display: flex;
    justify-content: center;
    margin-bottom: .8rem;
}

#logo img {
    width: min(210px, 70vw);
    max-height: 140px;
    object-fit: contain;
    filter: drop-shadow(0 10px 18px rgba(7, 52, 92, .14));
}

/* ==========================================
   E-Mail erfolgreich
========================================== */

.mail-success{

    max-width:700px;
    margin:60px auto;
    padding:40px;

    background:#fff;

    border-radius:18px;

    box-shadow:
        0 15px 40px rgba(0,0,0,.12);

    text-align:center;

    animation:fadeMail .4s ease;
}

.mail-icon{

    font-size:72px;

    margin-bottom:20px;
}

.mail-success h2{

    color:#27ae60;

    font-size:34px;

    margin-bottom:20px;
}

.mail-success p{

    font-size:19px;

    color:#555;

    margin-bottom:15px;
}

.mail-address{

    display:inline-block;

    margin:20px 0 35px;

    padding:15px 25px;

    background:#f4f7fb;

    border-radius:12px;

    font-size:22px;

    font-weight:bold;

    color:#0b5ed7;

    word-break:break-word;
}

.mail-buttons{

    display:flex;

    justify-content:center;

    gap:15px;

    flex-wrap:wrap;
}

.mail-buttons button{

    min-width:180px;

    padding:14px 22px;

    border:none;

    border-radius:10px;

    cursor:pointer;

    font-size:17px;

    font-weight:bold;

    transition:.25s;
}

.mail-buttons button:hover{

    transform:translateY(-2px);

    box-shadow:0 8px 20px rgba(0,0,0,.15);
}

@keyframes fadeMail{

    from{

        opacity:0;

        transform:translateY(25px);
    }

    to{

        opacity:1;

        transform:translateY(0);
    }

}

/* ========================================================================
   APP-GERÜST, KOPF UND NAVIGATION
   ======================================================================== */

#wrapper {
    width: min(98%);
    margin: 0 auto;
    padding: 1rem 0 2rem;
}

#kopf {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-height: 64px;
    margin: 0 0 1rem;
    padding: .7rem 1rem;
    background: rgba(255, 255, 255, .94);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

#menu {
    float: left;
    width: 240px;
    padding: .85rem;
    background: rgba(255, 255, 255, .95);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

#inhalt {
    float: right;
    width: calc(100% - 260px);
    min-height: 70vh;
    height: auto;
    margin: 0;
    padding: clamp(1rem, 2.2vw, 2rem);
    overflow: visible;
    background: rgba(255, 255, 255, .94);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

#wrapper::after {
    display: block;
    clear: both;
    content: "";
}

#u_schrift,
.u_schrift,
.kunde_neu_uschrift {
    margin: 0 0 18px;
    padding: 0;

    color: #002f58;

    font-family: Arial, sans-serif;
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.2;
    text-align: center;
}

.menu,
#logout {
    display: block;
    width: 100%;
    min-height: 44px;
    margin: .45rem 0;
    padding: .68rem .75rem;
    color: var(--ink);
    background: var(--surface-soft);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    box-shadow: none;
    font-size: .98rem;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition);
}

.menu:hover,
.menu:focus-within,
.hover:hover {
    color: var(--primary-dark);
    background: var(--primary-light);
    border-color: rgba(31, 131, 209, .22);
    box-shadow: none;
    transform: translateX(3px);
}

#logout {
    margin-top: 1.25rem;
    color: #fff;
    background: linear-gradient(135deg, #6d7884, #49535e);
    text-align: center;
}

#logout:hover {
    box-shadow: 0 8px 18px rgba(31, 42, 54, .2);
    transform: translateY(-1px);
	background: #46515e;
}

#logout:active,
#menu .menu:active {
    transform: scale(0.98);
}

/* =========================================================
   HAMBURGER UND OVERLAY AUF DESKTOP AUSBLENDEN
========================================================= */

.mobile-menu-toggle,
.menu-overlay {
    display: none;
}


/* ========================================================================
   FORMULARE UND KUNDENBEREICHE
   ======================================================================== */

#kunde_neu,
#form_kunde_neu,
#form_kunde_menu,
#form_kunde,
.kunden_update {
    width: min(100%, 620px);
    height: auto;
    margin: 1.4rem auto;
    padding: clamp(1rem, 3vw, 1.5rem);
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    text-align: left;
}

#kunde_neu input,
#form_kunde_neu input,
#form_kunde_menu input,
#form_kunde_menu select,
#form_kunde input,
#form_kunde select,
#form_kunde textarea,
.kunden_update input,
.kunden_update select {
    margin: .35rem 0 .8rem;
}

#form_kunde_menu {
    display: grid;
    gap: .7rem;
}

#anfahrt_anzahl {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .7rem;
    width: min(100%, 320px);
    margin: .8rem auto;
}

.menge_label,
.anfahrt_label {
    margin: 0;
    font-size: .95rem;
}

#anzahl_neu,
#anfahrt {
    width: 100%;
}

.kunden_box {
    width: 100%;
    margin: 0 auto;
}

.kunde_new {
    margin: .65rem 0;
}

.box_left {
    float: left;
    width: min(100%, 280px);
}

.kunden_verzeichnis {
    float: right;
    width: calc(100% - 300px);
    margin: 0;
    overflow-x: auto;
    text-align: center;
}

#text {
    margin: 1rem 0;
    color: var(--muted);
    font-size: 1rem;
    text-align: center;
}

/* ========================================================================
   TABELLEN
   ======================================================================== */

.table-scroll,
.kunden_verzeichnis,
#inhalt {
    scrollbar-width: thin;
    scrollbar-color: #b8c7d6 transparent;
}

table {
    width: 100%;
    margin: 1.25rem auto;
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--line);
    border-collapse: separate;
    border-spacing: 0;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    text-align: left;
}

thead,
tr:first-child {
    /* background: var(--primary-dark); */
    color: #000;
}

th,
td,
table td {
    padding: .75rem .8rem;
    border-bottom: 1px solid var(--line);
    vertical-align: middle;
}

th {
    font-size: .85rem;
    font-weight: 800;
    letter-spacing: .02em;
    text-transform: uppercase;
}

tbody tr:nth-child(even) {
    background: #f7f9fb;
}

tbody tr:hover,
.kunde:hover {
    background: var(--primary-light);
}

tbody tr:last-child td {
    border-bottom: 0;
}

.th_betrag {
    min-width: 110px !important;
}

.a,
.b,
.c {
    width: auto;
}

/* ========================================================================
   DIALOGE UND AKTIONEN
   ======================================================================== */

#popup,
#fenster {
    position: fixed;
    top: 50%;
    left: 50%;
    z-index: 1000;
    display: none;
    width: min(92vw, 430px);
    height: auto;
    margin: 0;
    padding: 1.4rem;
    color: var(--ink);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: 0 24px 80px rgba(2, 20, 38, .3);
    text-align: center;
    transform: translate(-50%, -50%);
}

.deaktiv {
    width: fit-content;
    margin: 1rem auto;
    padding: .5rem .8rem;
    color: #fff;
    background: var(--primary);
    border-radius: var(--radius-sm);
    text-align: center;
}

#del,
#edit,
#aktivieren,
#abbrechen {
    float: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    min-width: 110px;
    margin: 1rem .25rem 0;
    padding: .65rem .9rem;
    color: #fff;
    background: var(--primary);
    border: 0;
    border-radius: var(--radius-sm);
    font-weight: 700;
    cursor: pointer;
}

#del,
#abbrechen {
    background: var(--danger);
}

#clouse {
    position: absolute;
    top: .65rem;
    right: .65rem;
    float: none;
    width: 30px;
    height: 30px;
    display: grid;
    place-items: center;
    color: var(--muted);
    background: var(--surface-soft);
    border-radius: 50%;
    cursor: pointer;
}

/* ========================================================================
   STARTSEITE
   ======================================================================== */

#bild {
    width: min(100%, 420px);
    aspect-ratio: 1 / 1;
    height: auto;
    margin: 1.5rem auto;
    background-image: url('../img/geb.png');
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
    border-radius: var(--radius-lg);
}

#willkommen {
    margin: 1.5rem auto;
    color: var(--primary-dark);
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -.04em;
    text-align: center;
}

#danke {
    width: min(100%, 360px);
    margin: 1.5rem auto;
    padding: 1rem;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    text-align: center;
}

/* ========================================================================
   RECHNUNG – BILDSCHIRMANSICHT
   Desktop: volle verfügbare Breite
   Mobile: feste Rechnungsbreite mit horizontalem Scrollen
   ======================================================================== */

.rechnungs-archiv {
	display: flex;
	flex-direction: column;
	gap: 14px;
	width: 100%;
}

.rechnungs-jahr,
.rechnungs-monat {
	overflow: hidden;
	border: 1px solid #d9dee8;
	border-radius: 10px;
	background: #fff;
}

.rechnungs-monat {
	margin: 12px;
}

.rechnungs-klappkopf {
	display: grid;
	grid-template-columns: 40px 1fr auto 40px;
	align-items: center;
	width: 100%;
	min-height: 58px;
	padding: 10px 14px;
	border: 0;
	cursor: pointer;
	font: inherit;
	color: #222;
	background: #f1f4f8;
	transition:
		background 0.2s ease,
		color 0.2s ease;
}

.rechnungs-jahr-kopf {
	grid-template-columns: 40px 1fr 40px;
	font-size: 19px;
	font-weight: 700;
	background: #e8edf5;
}

.rechnungs-monat-kopf {
	font-size: 16px;
	font-weight: 600;
}

.rechnungs-klappkopf:hover,
.rechnungs-klappkopf.ist-offen {
	background: #dce4ef;
}

.rechnungs-klapp-titel {
	text-align: center;
}

.rechnungs-klapp-symbol {
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 24px;
	font-weight: 700;
	line-height: 1;
}

.rechnungs-klapp-anzahl {
	padding: 5px 10px;
	border-radius: 20px;
	font-size: 12px;
	font-weight: 600;
	background: rgba(255, 255, 255, 0.8);
}

.rechnungs-klappinhalt[hidden] {
	display: none;
}

.rechnungs-tabelle-wrapper {
	width: 100%;
	overflow-x: auto;
}

.rechnungs-tabelle {
	width: 100%;
	border-collapse: collapse;
	background: #fff;
}

.rechnungs-tabelle th,
.rechnungs-tabelle td {
	padding: 10px;
	border: 1px solid #dfe3e8;
	text-align: left;
	white-space: nowrap;
}

.rechnungs-tabelle th {
	font-weight: 700;
	background: #f4f6f9;
}

.rechnungs-tabelle tbody tr:nth-child(even) {
	background: #fafbfc;
}

.rechnungs-tabelle tbody tr:hover {
	background: #eef4fa;
}

.rechnungs-betrag {
	text-align: right !important;
	font-weight: 700;
}

.rechnungs-leer {
	padding: 30px;
	border: 1px dashed #c9ced6;
	border-radius: 10px;
	text-align: center;
	background: #fafafa;
}


#print {
    position: absolute;
    top: 23%;
    left: 50%;
    z-index: 2;
    width: 150px;
    margin-left: -75px;
    color: var(--danger);
    border: 4px solid var(--danger);
    border-radius: 6px;
    font-family: Verdana, sans-serif;
    font-size: 1.35rem;
    font-weight: 700;
    text-align: center;
    transform: rotate(-35deg);
}

/* INHALT!!!!! */
#inhalt {
    max-width: 100%;
}


/* ==================================================
   E-Mail erfolgreich versendet
================================================== */

#inhalt .mail-success-card {
    width: min(100%, 620px);
    margin: 40px auto;
    padding: 45px 35px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow:
        0 20px 45px rgba(0, 0, 0, 0.14),
        0 4px 12px rgba(0, 0, 0, 0.08);
    text-align: center;
    box-sizing: border-box;
}

#inhalt .mail-success-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 82px;
    height: 82px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: #198754;
    color: #ffffff;
    font-size: 44px;
    font-weight: 700;
    line-height: 1;
    box-shadow: 0 10px 25px rgba(25, 135, 84, 0.3);
}

#inhalt .mail-success-card h2 {
    margin: 0 0 14px;
    color: #1f2937;
    font-size: 30px;
    font-weight: 700;
}

#inhalt .mail-success-card p {
    margin: 0 0 10px;
    color: #6b7280;
    font-size: 17px;
    line-height: 1.6;
}

#inhalt .mail-success-address {
    display: inline-block;
    margin: 8px 0 30px;
    padding: 12px 20px;
    border-radius: 12px;
    background: #f3f4f6;
    color: #111827;
    font-size: 17px;
    font-weight: 600;
    word-break: break-word;
}

#inhalt .mail-success-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 190px;
    padding: 14px 24px;
    border: none;
    border-radius: 12px;
    background: #212529;
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition:
        transform 0.2s ease,
        background-color 0.2s ease,
        box-shadow 0.2s ease;
}

#inhalt .mail-success-button:hover {
    background: #000000;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.2);
}

#inhalt .mail-success-button:active {
    transform: translateY(0);
}


/* INHALT ENDE!!! */

#rechnung {
    position: relative;
    box-sizing: border-box;
    width: 100%;
    max-width: 1180px;
    min-height: 1050px;
    margin: 1.5rem auto;
    padding: clamp(18px, 3vw, 44px);
    overflow: hidden;
    color: #000;
    background: #fff;
    border: 1px solid #c6c6c6;
    box-shadow: var(--shadow-md);
}

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

#u_schruft_box {
    width: 100%;
}

#u_schrift_re {
    float: right;
}

#logo_re {
    float: left;
    width: 100px;
    height: 100px;
    margin: 20px clamp(40px, 12vw, 130px) 0 0;
    background-image: url('/img/logo.png');
    background-repeat: no-repeat;
    background-position: left top;
    background-size: contain;
}

.adress {
    font-size: .7rem;
}

#tabelle {
    width: 100%;
    max-width: none;
    margin: 16px auto;
    padding: 0;
    font-family: Arial, sans-serif;
}

#empfanger {
    float: left;
    width: min(48%, 360px);
    font-size: .8rem;
}

#absender {
    float: right;
    width: min(42%, 260px);
    margin: 10px 0;
    font-size: .8rem;
}

#rechnung_schrift {
    margin: 40px auto;
    font-family: Arial, sans-serif;
    font-size: 1.6rem;
}

#r_k_d {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
    margin: 0 auto;
}

#re_nr,
#kd_nr,
#date {
    float: none;
    width: auto;
    min-width: 0;
}

#kd_nr { text-align: center; }
#date { text-align: right; }

#bitte {
    font-family: Arial, sans-serif;
    font-size: .8rem;
    font-style: italic;
    border-bottom: 1px solid #000;
}

/* Tabellenkopf und Rechnungszeilen bleiben zusammen exakt 100 % breit. */
#liste,
.re_tabelle {
    display: grid;
    grid-template-columns: 6% minmax(260px, 1fr) 18% 12% 18%;
    width: 100%;
    margin: 0;
}

#pos,
#beschreibung,
#einzelpreis,
#anzahl,
#gesamtpreis,
.pos,
.beschreibung,
.einzelpreis,
.anzahl,
.gesamtpreis {
    float: none;
    width: auto;
    min-width: 0;
    min-height: 28px;
    margin: 0;
    padding: 5px 7px;
    border: 1px solid #000;
    border-right: 0;
    font-size: .8rem;
    overflow-wrap: anywhere;
}

#gesamtpreis,
.gesamtpreis {
    border-right: 1px solid #000;
}

#pos,
.pos { text-align: center; }

#einzelpreis,
.einzelpreis,
#gesamtpreis,
.gesamtpreis { text-align: right; }

#anzahl,
.anzahl { text-align: center; }

#pos,
#beschreibung,
#einzelpreis,
#anzahl,
#gesamtpreis {
    background: #b7bec6;
    font-weight: 700;
}

.re_tabelle {
    margin-top: -1px;
}

#container {
    position: absolute;
    right: clamp(18px, 3vw, 44px);
    bottom: 1%;
    left: clamp(18px, 3vw, 44px);
    width: auto;
    margin: 0;
    font-family: Arial, sans-serif;
    border-top: 1px solid #000;
}

#tage { float: left; }

#rechnungssumme {
    float: right;
    margin-right: 10px;
    font-weight: 700;
}

#para { margin-bottom: 50px; }

#footer {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    width: 100%;
    margin: 50px auto;
    padding-top: 8px;
    font-size: .8rem;
    border-top: 1px solid #000;
}

#firmen_name,
#tel,
#bank,
#steuer {
    float: none;
    min-width: 0;
    margin: 0;
    overflow-wrap: anywhere;
}

/* Rechnungssteuerung */
#buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .5rem;
    width: min(100%, 760px);
    margin: 1rem auto;
    padding: .75rem;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

#buttons input,
#buttons button { margin: 0; }

#zuruck,
#kd_re_liste,
#re_liste,
#vor {
    width: auto;
    min-width: 100px;
}

#pdf {
    color: inherit;
    text-decoration: none;
}

li {
    width: min(100%, 760px);
    margin: .45rem auto;
    padding: .65rem .8rem;
    list-style: none;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    text-align: center;
}

#email {
    width: min(95%, 760px);
    margin: 1rem auto;
    padding: 1rem;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.email {
    width: 100%;
    margin: .45rem 0;
}

#email button {
    width: auto;
    min-width: 140px;
}

#rechner input,
#rechner label,
#rechner h3 {
    display: block;
    width: 100%;
    margin: .6rem 0;
}

/* ========================================================================
   RESPONSIVE ANSICHT
   ======================================================================== */

@media (max-width: 1100px) {
    #menu,
    #inhalt {
        float: none;
        width: 100%;
    }

    #menu {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: .5rem;
        margin-bottom: 1rem;
    }

    .menu,
    #logout {
        margin: 0;
        text-align: center;
    }

    #logout { margin-top: 0; }

    .box_left,
    .kunden_verzeichnis {
        float: none;
        width: 100%;
    }

    .kunden_verzeichnis { margin-top: 1rem; }
}

@media (max-width: 860px) {
     body.mobile-menu-open {
        overflow: hidden;
    }

    #wrapper {
        display: block;

        width: 100%;
        margin: 0;
        padding: 70px 12px 12px;
    }


    /* Hamburger-Schalter */

    .mobile-menu-toggle {
        position: fixed;
        top: 12px;
        left: 12px;
        z-index: 1500;

        display: inline-flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;

        width: 48px;
        height: 48px;

        margin: 0;
        padding: 0;

        border: 0;
        border-radius: 10px;

        background: #0877c9;
        box-shadow: 0 5px 15px rgba(0, 68, 120, 0.3);

        cursor: pointer;
        appearance: none;
        -webkit-appearance: none;
        -webkit-tap-highlight-color: transparent;
    }

    .mobile-menu-toggle span {
        display: block;

        width: 24px;
        height: 3px;

        margin: 3px 0;

        border-radius: 3px;
        background: #ffffff;

        pointer-events: none;

        transition:
            transform 0.25s ease,
            opacity 0.2s ease;
    }


    /* Hamburger wird zum X */

    .mobile-menu-toggle.is-open span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .mobile-menu-toggle.is-open span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.is-open span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }


    /* Mobiles Seitenmenü */

    #menu {
        position: fixed;
        top: 0;
        left: 0;
        z-index: 1400;

        display: flex;
        flex-direction: column;

        width: min(86vw, 300px);
        height: 100dvh;
        max-height: none;

        margin: 0;
        padding: 78px 16px 20px;
        overflow-y: auto;

        border: 0;
        border-radius: 0 18px 18px 0;

        background: #ffffff;

        box-shadow: 15px 0 40px rgba(0, 25, 45, 0.28);

        transform: translateX(-105%);
        visibility: hidden;
        pointer-events: none;

        transition:
            transform 0.28s ease,
            visibility 0.28s ease;
    }

    #menu.menu-open {
        transform: translateX(0);
        visibility: visible;
        pointer-events: auto;
    }

    #u_schrift {
        margin-bottom: 18px;
        font-size: 1.8rem;
    }

    #menu .menu {
        flex: 0 0 auto;
        min-height: 50px;
        font-size: 1rem;
    }

    #menu .menu:hover {
        transform: none;
    }


    /* Dunkler Hintergrund */

    .menu-overlay {
        position: fixed;
        inset: 0;
        z-index: 1300;

        display: block;

        background: rgba(0, 19, 34, 0.6);

        opacity: 0;
        visibility: hidden;
        pointer-events: none;

        transition:
            opacity 0.25s ease,
            visibility 0.25s ease;
    }

    .menu-overlay.is-visible {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }
}


    #rechnung {
        width: 842px;
        min-width: 842px;
        max-width: none;
        margin: 1rem auto;
        padding: 36px;
        transform: none;
    }

    #tabelle {
        width: 100%;
    }
}

@media (max-width: 700px) {
    body { font-size: 15px; }

    #wrapper {
        width: 100%;
        padding: .65rem;
    }

    #kopf,
    #menu,
    #inhalt {
        border-radius: 11px;
    }

    #inhalt {
        min-height: auto;
        padding: 1rem;
    }

    #menu { grid-template-columns: 1fr; }
    .menu:hover { transform: none; }
    #form { margin: 1.2rem auto; }

    .tabelle_none_artikel,
    .tabelle_none_kd_neu {
        display: none;
    }

    /* Normale Verwaltungstabellen dürfen ebenfalls horizontal scrollen. */
    #inhalt > table,
    .kunden_verzeichnis table {
        min-width: 620px;
    }

    #buttons {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    #buttons > * { width: 100%; }
}

@media (max-width: 520px) {
    #kopf {
        min-height: 56px;
        padding: .55rem .7rem;
    }

    #willkommen { font-size: 2rem; }

    #form,
    #kunde_neu,
    #form_kunde_neu,
    #form_kunde_menu,
    #form_kunde,
    .kunden_update {
        width: 100%;
    }

    #anfahrt_anzahl { grid-template-columns: 1fr; }

    #popup,
    #fenster {
        width: calc(100vw - 1.5rem);
        padding: 1.2rem .9rem;
    }

    #del,
    #edit,
    #aktivieren,
    #abbrechen {
        display: flex;
        width: 100%;
        margin: .4rem 0 0;
    }

    #buttons { grid-template-columns: 1fr; }
}

/* ========================================================================
   DRUCKANSICHT – RECHNUNG
   ======================================================================== */

@media print {
    @page {
        size: A4;
        margin: 0;
    }

    body {
        margin: 0;
        background: #fff;
    }

    body * {
        visibility: hidden;
    }

    #rechnung,
    #rechnung * {
        visibility: visible;
    }

    #rechnung {
        position: absolute;
        top: 0;
        left: 0;
        width: 210mm;
        min-height: 297mm;
        margin: 0;
        border: 0;
        box-shadow: none;
        transform: none !important;
    }

    #buttons,
    #menu,
    #kopf,
    #breite,
    #print {
        display: none !important;
    }
}


/* ========================================================================
   MOBILE HAMBURGER-MENÜ
   ======================================================================== */

.mobile-header,
.menu-overlay {
    display: none;
}

@media (max-width: 700px) {
	.rechnungs-klappkopf {
		grid-template-columns: 32px 1fr auto 32px;
		padding: 8px;
	}

	.rechnungs-jahr-kopf {
		grid-template-columns: 32px 1fr 32px;
		font-size: 17px;
	}

	.rechnungs-monat {
		margin: 8px;
	}

	.rechnungs-klapp-anzahl {
		font-size: 11px;
	}
}

@media (max-width: 600px) {
    #inhalt .mail-success-card {
        margin: 20px auto;
        padding: 35px 20px;
        border-radius: 18px;
    }

    #inhalt .mail-success-icon {
        width: 70px;
        height: 70px;
        font-size: 38px;
    }

    #inhalt .mail-success-card h2 {
        font-size: 24px;
    }

    #inhalt .mail-success-button {
        width: 100%;
    }
}

@media (max-width: 860px) {
    body.mobile-menu-open {
        overflow: hidden;
    }

    .mobile-header {
        position: sticky;
        top: 0;
        z-index: 1100;
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 64px;
        margin-bottom: .8rem;
        padding: .7rem .85rem .7rem 1rem;
        border: 1px solid rgba(255, 255, 255, .12);
        border-radius: 14px;
        background: linear-gradient(135deg, #071b31, #0a2d55);
        box-shadow: 0 12px 28px rgba(0, 0, 0, .22);
        color: #fff;
    }

    .mobile-brand {
        min-width: 0;
        font-size: 1.15rem;
        font-weight: 800;
        letter-spacing: .02em;
    }

    .mobile-brand span {
        display: block;
        margin-top: .08rem;
        color: rgba(255, 255, 255, .68);
        font-size: .72rem;
        font-weight: 500;
        letter-spacing: .08em;
        text-transform: uppercase;
    }

    .menu-toggle {
        position: relative;
        z-index: 1201;
        display: inline-flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 46px;
        height: 46px;
        margin: 0;
        padding: 0;
        border: 1px solid rgba(255, 255, 255, .2);
        border-radius: 12px;
        background: rgba(255, 255, 255, .1);
        box-shadow: none;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }

    .menu-toggle span {
        display: block;
        width: 23px;
        height: 2px;
        margin: 3px 0;
        border-radius: 4px;
        background: #fff;
        transition: transform .25s ease, opacity .2s ease;
    }

    .menu-toggle-active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .menu-toggle-active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle-active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    #menu {
        position: fixed;
        top: 0;
        left: 0;
        z-index: 1200;
        display: flex;
        flex-direction: column;
        width: min(86vw, 340px);
        height: 100dvh;
        margin: 0;
        padding: 82px 1rem 1.25rem;
        overflow-y: auto;
        border: 0;
        border-radius: 0 20px 20px 0;
        background: linear-gradient(180deg, #071b31 0%, #0a2d55 100%);
        box-shadow: 18px 0 45px rgba(0, 0, 0, .32);
        transform: translateX(-105%);
        visibility: hidden;
        transition: transform .28s ease, visibility .28s ease;
    }

    #menu.menu-open {
        transform: translateX(0);
        visibility: visible;
    }

    #u_schrift {
        margin: 0 0 .9rem;
        padding: 0 .35rem .75rem;
        border-bottom: 1px solid rgba(255, 255, 255, .14);
        color: #fff;
        text-align: left;
        font-size: 1.35rem;
    }

    #menu .menu {
        display: flex;
        align-items: center;
        min-height: 50px;
        width: 100%;
        margin: 0 0 .45rem;
        padding: .8rem .95rem;
        border: 1px solid rgba(255, 255, 255, .1);
        border-radius: 11px;
        background: rgba(255, 255, 255, .07);
        box-shadow: none;
        color: #fff;
        text-align: left;
        font-size: 1rem;
        font-weight: 600;
        transition: background .2s ease, transform .2s ease;
    }
	
	#menu .menu:hover {
		background: #e4edf5;
		color: #006dc5;

		transform: translateX(3px);
	}
	
	#menu .menu:focus-visible {
		outline: 3px solid rgba(0, 112, 201, 0.25);
		outline-offset: 2px;
	}


    #menu .menu:active {
        background: rgba(31, 122, 224, .45);
        transform: scale(.985);
    }

	#menu form {
		width: 100%;
		margin: 10px 0 0;
	}

    #menu center {
        display: block;
    }

    #menu #logout {
        width: 100%;
		min-height: 48px;

		margin: 0;
		padding: 10px 14px;

		border: 0;
		border-radius: 9px;

		background: #5d6876;
		color: #ffffff;

		font-family: Arial, sans-serif;
		font-size: 1rem;
		font-weight: 700;

		cursor: pointer;

		transition:
			background-color 0.2s ease,
			transform 0.2s ease;
    }

    .menu-overlay {
        position: fixed;
        inset: 0;
        z-index: 1150;
        display: block;
        background: rgba(1, 10, 20, .62);
        opacity: 0;
        visibility: hidden;
        backdrop-filter: blur(3px);
        transition: opacity .25s ease, visibility .25s ease;
    }

    .menu-overlay-visible {
        opacity: 1;
        visibility: visible;
    }
}

@media (max-width: 420px) {
     #menu {
        width: min(88vw, 290px);
        padding-left: 13px;
        padding-right: 13px;
    }

    .mobile-menu-toggle {
        top: 9px;
        left: 9px;

        width: 46px;
        height: 46px;
    }

    #wrapper {
        padding-top: 65px;
    }
}

@media print {
    .mobile-header,
    .menu-overlay {
        display: none !important;
    }
}


/* E-Mail-Formular – an das Ende von style/style.css setzen */
.mail-page{max-width:760px;margin:35px auto;padding:20px;font-family:Arial,sans-serif}
.mail-card{background:#fff;border-radius:16px;padding:28px;box-shadow:0 10px 35px rgba(0,0,0,.12)}
.mail-card h2{margin-top:0}
.mail-file{padding:12px;background:#f4f6f8;border-radius:10px;overflow-wrap:anywhere}
.mail-card label{display:block;margin:18px 0 7px;font-weight:700}
.mail-card input,.mail-card textarea{width:100%;box-sizing:border-box;padding:12px 14px;border:1px solid #c9ced6;border-radius:9px;font:inherit}
.mail-card textarea{resize:vertical}
.mail-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:22px}
.mail-actions button{padding:11px 18px;border:0;border-radius:9px;cursor:pointer;font-weight:700}
.mail-actions button[type=submit]{background:#1f7a4d;color:#fff}
#back-button{background:#e5e7eb;color:#1f2937}
#back-button:hover{background:#d1d5db}
.pass_falsch{margin:14px 0;padding:12px;border-radius:9px;background:#ffe4e4;color:#8b1111}
.pass_richtig{max-width:760px;margin:35px auto;padding:24px;border-radius:14px;background:#e7f7ed;color:#155c35;font-family:Arial,sans-serif}
.mail-success-card{max-width:680px;margin:35px auto;padding:30px;text-align:center;background:#fff;border-radius:16px;box-shadow:0 10px 35px rgba(0,0,0,.12)}
.mail-success-icon{font-size:52px;margin-bottom:12px}
.mail-success-address{margin:18px 0;padding:12px;border-radius:10px;background:#f4f6f8;font-weight:700;overflow-wrap:anywhere}
.mail-success-button{display:inline-flex;padding:11px 18px;border-radius:9px;background:#1f7a4d;color:#fff;text-decoration:none;font-weight:700}
@media(max-width:600px){.mail-page{margin:0;padding:12px}.mail-card{padding:18px}.mail-actions{flex-direction:column-reverse}.mail-actions button{width:100%}}