/* Globale Reset- und Box-Modell-Einstellungen */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    height: 100vh;
    background-color: #f0f0f0;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-family: "Pixelify Sans", sans-serif;
    font-optical-sizing: auto;
}

/* Dekoration (Loading-Text) */
.decoration {
    display: inline-block; /* Besser als inline */
    font-family: "Pixelify Sans", sans-serif;
    letter-spacing: 2px;
    font-size: 12px;
    color: #ff00ff;
    text-shadow: 
        0 0 5px #ff00ff, 
        0 0 10px #00ffff, 
        0 0 15px #ffff00;
   
    background-color: transparent; /* Expliziter als !important */
    border: none;
    padding: 0;
    margin: 0;
    box-shadow: none;
    text-align: center;
}

.loading {
    display: flex;
    justify-content: center;
    align-items: center;
}

.loadingTwo {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    font-size: 10px;
}

/* Logo */
.logo img {
    max-height: 80px;
    max-width: 80px;
    height: auto;
    border-radius: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    margin: 0 auto 20px; /* Kombinierter Margin */
    box-shadow: 
        0 0 10px #ff00ff,   /* Pink */
        0 0 20px #00ffff,   /* Cyan */
        0 0 30px #ffff00;   /* Gelb */
    animation: rgbGlow 3s infinite alternate;
    filter: brightness(1) contrast(1.5) saturate(1.5) drop-shadow(0 0 8px #00ff00);
    box-shadow: 
        inset -4px -4px 0 rgba(14, 11, 11, 0.5), /* Schatten mit 0px Distanz */
        inset 4px 4px 8px rgba(161, 117, 164, 0.748);
}

@keyframes rgbGlow {
    0% { box-shadow: 0 0 10px #ff00ff, 0 0 20px #00ffff, 0 0 30px #ffff00; }
    33% { box-shadow: 0 0 15px #00ffff, 0 0 25px #ffff00, 0 0 15px #ff00ff; }
    66% { box-shadow: 0 0 15px #ffff00, 0 0 25px #ff00ff, 0 0 15px #00ffff; }
    100% { box-shadow: 0 0 20px #ff00ff, 0 0 30px #00ffff, 0 0 10px #ffff00; }
}

/* Titel */
#title {
    font-size: 69px;
    font-variant: small-caps;
    text-align: center;
    font-weight: 700;
    color: #11dcf3;
    letter-spacing: 6px;
    text-decoration: underline solid #8b68ddfb;
    text-shadow: 
        6px 2px 1px rgba(0, 0, 0, 0.6),
        -1px -1px 2px rgba(255, 255, 255, 0.3), 
        0 0 12px rgba(17, 220, 243, 0.6);
}

/* Display */
.display {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    font-size: 46px;
    font-weight: 600;
    background-color: #20142c;
    margin-bottom: 26px;
    width: 170px;
    height: 50px;
    color: #5cdf05;
    text-shadow: #170101 1px 2px 10px;
    font-family: "Jersey 10", sans-serif;
    font-style: normal;
    border-radius: 10px;
}

/* Allgemeiner Container */
.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

/* Calculator Shell */
.calcShell {
    position: absolute;
    top: 58%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1);
    background-color: #4520c9;
    border-radius: 40px;
    padding: 22px;
    margin: 20px auto;
    box-shadow: 
        inset -4px -4px 8px rgba(14, 11, 11, 0.5),
        inset 4px 4px 8px rgba(161, 117, 164, 0.748),
        2px 8px 12px rgba(7, 0, 0, 0.74);
}

/* Gemeinsame Button-Styles */
.calcShell button {
    width: 50px;
    height: 40px;
    font-size: 24px;
    background-color: #76dd22;
    border: 1px solid #170101;
    border-radius: 5px;
    cursor: pointer;
    font-family: "Jersey 10", sans-serif;
    font-style: normal;
    transition: 
        background-color 0.2s, 
        border 0.2s, 
        box-shadow 0.2s,
        transform 0.1s;
    box-shadow: 
        1px 6px 2px rgba(0, 0, 0, 0.5),
        -1px -2px 2px rgba(255, 255, 255, 0.3);
}

/* Klick-Effekt */
.calcShell button:active {
    transform: translateY(2px);
    box-shadow: 
        1px 1px 3px rgba(0, 0, 0, 0.4),
        -1px -1px 1px rgba(255, 255, 255, 0.2);
}

/* Hover-Effekt */
.calcShell button:hover {
    background-color: #cdee10;
    border-width: 2px; /* Kurzschreibweise */
}

/* Besondere Buttons (z.B. "=") */
.buttons4 button {
    width: 180px;
    background-color: #eefa40;
    box-shadow: 
        4px 4px 7px rgba(0, 0, 0, 0.5),
        -2px -2px 2px rgba(255, 255, 255, 0.3);
}

/* Button-Reihen */
.buttons1,
.buttons2,
.buttons3,
.buttonsOperator,
.buttonsSide,
.buttons4 {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin: 5px 0;
}

/* Video-Hintergrund */
.video-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    z-index: -1;
}

.video-background video {
    width: 102%;
    height: 102%;
    position: absolute;
    top: -1%;
    left: -1%;
    object-fit: cover;
    object-position: center; /* Korrektur */
    pointer-events: none;
    filter: blur(4px) brightness(0.8) contrast(0.1) saturate(20%) hue-rotate(89deg);
    animation: glitch 6s infinite;
    will-change: transform, filter;
    backface-visibility: hidden;
}

@keyframes glitch {
    0%   { transform: translate(0) translateZ(0); filter: hue-rotate(0deg); }
    20%  { transform: translate(-2px, 2px) translateZ(0); }
    40%  { transform: translate(2px, -2px) translateZ(0); filter: hue-rotate(90deg); }
    60%  { transform: translate(-1px, 1px) translateZ(0); }
    80%  { transform: translate(1px, -1px) translateZ(0); filter: hue-rotate(180deg); }
    100% { transform: translate(0) translateZ(0); filter: hue-rotate(0deg); }
}

/* Media Queries */

/* 4K Ultra HD – ab 2560px */
@media (min-width: 2560px) {
    #title { font-size: 100px; }
    .calcShell { transform: translate(-50%, -50%) scale(1.0); }
}

/* 1440p WQHD – ab 1920px bis 2559px */
@media (min-width: 1920px) and (max-width: 2559px) {
    #title { font-size: 100px; }
    .calcShell { transform: translate(-50%, -55%) scale(1.0); }
}

/* Full HD 1080p – ab 1280px bis 1919px */
@media (min-width: 1280px) and (max-width: 1919px) {
    #title { font-size: 79px; }
    .calcShell { transform: translate(-50%, -55%) scale(0.95); }
}


/* Optimierung für Tablets (768px bis 1024px) */
@media (min-width: 768px) and (max-width: 1024px) {
    #title {
        font-size: 90px; /* Reduzierte Schriftgröße für Tablets */
    }

    .calcShell {
        transform: translate(-50%, -50%) scale(1.2); /* Leicht verkleinert */
      
        margin: -100px auto; /* Weniger Margin */
    }
}
/* Mobile Geräte (Tablets & Smartphones) – bis 767px */
@media (max-width: 767px) {
    #title { font-size: 70px; }
    .calcShell { 
        transform: translate(-50%, -60%) scale(0.85);
       
    }
}