:root {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --accent-color: #7289da;
    --input-bg: #2a2a2a;
    --input-border: #3a3a3a;
    --success-color: #43b581;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-color) var(--bg-primary);
}

html {
    scroll-behavior: smooth;
    height: -webkit-fill-available;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    min-height: -webkit-fill-available;
    overflow-x: hidden;
    margin: 0;
}

.navbar {
    background-color: var(--bg-secondary);
    padding: 0.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
    padding: 0.5rem;
}

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

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.5rem;
    width: 100%;
}

section {
    margin: 2rem 0;
}

.hero {
    text-align: center;
    padding: 0.5rem 0;
}

h1 {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    margin-bottom: 1rem;
    color: var(--accent-color);
}

h2 {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.calculator-container {
    max-width: 800px;
    margin: 1rem auto;
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
}

.calculator-form {
    display: grid;
    gap: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: left;
}

label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

input, select {
    padding: 0.8rem;
    border: 1px solid var(--input-border);
    border-radius: 5px;
    background-color: var(--input-bg);
    color: var(--text-primary);
    font-size: 16px;
    width: 100%;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

@-moz-document url-prefix() {
    input[type="number"] {
        padding-right: 0;
    }
}

select {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3e%3cpath d='M7 10l5 5 5-5z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.7rem top 50%;
    background-size: 1.5rem auto;
    padding-right: 2.5rem;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(114, 137, 218, 0.2);
}

.button-group {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.calculate-btn, .reset-btn {
    width: 100%;
    padding: 0.8rem;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
    font-size: 1.2rem;
    touch-action: manipulation;
    flex: 1;
}

.calculate-btn {
    background-color: var(--accent-color);
    color: white;
}

.reset-btn {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--input-border);
}

.calculate-btn:hover {
    background-color: #5f73bc;
    transform: translateY(-1px);
}

.reset-btn:hover {
    background-color: #2a2a2a;
    transform: translateY(-1px);
}

.calculate-btn:active, .reset-btn:active {
    transform: translateY(1px);
}

.results-container {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--input-border);
}

.results-grid {
    display: grid;
    gap: 1rem;
    margin-top: 1rem;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color: var(--input-bg);
    border-radius: 5px;
    word-break: break-word;
}

.result-item span {
    white-space: pre-line;
    line-height: 1.4;
}

.result-item span:last-child {
    color: var(--success-color);
    font-weight: bold;
    margin-left: 1rem;
}

.result-item:first-child span:last-child {
    white-space: pre-line;
    line-height: 1.6;
    margin-top: 0.5rem;
    display: block;
    margin-left: 0;
}

footer {
    background-color: var(--bg-secondary);
    text-align: center;
    padding: 2rem;
    margin-top: 4rem;
}

@media (max-width: 768px) {
    .navbar,
    .nav-links,
    .calculator-container,
    .input-group,
    .result-item,
    .button-group {
        flex-direction: column;
    }
}

@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .calculator-container {
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #121212;
        --bg-secondary: #1e1e1e;
        --text-primary: #ffffff;
        --text-secondary: #b3b3b3;
        --input-bg: #2a2a2a;
        --input-border: #3a3a3a;
    }
}

.title-container {
    text-align: center;
    margin-bottom: 2rem;
}

.title-container h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.subtitle p {
    margin-bottom: 0.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
}

@media (min-width: 768px) {
    .logo-img {
        width: 50px;
        height: 50px;
    }

    .logo-text {
        font-size: 1.8rem;
    }
}

.howto-content a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.howto-content a:hover {
    color: #5f73bc;
}

.howto-content blockquote {
    border-left: 4px solid var(--accent-color);
    margin: 1rem 0;
    padding: 1rem;
    background-color: var(--bg-secondary);
    border-radius: 0 5px 5px 0;
}

.howto-content blockquote p {
    margin-bottom: 0.5rem;
}

.howto-content blockquote p:last-child {
    margin-bottom: 0;
}

.howto-content {
    text-align: left;
}

.howto-content p,
.howto-content h1,
.howto-content h2,
.howto-content h3,
.howto-content h4,
.howto-content ul,
.howto-content li,
.howto-content blockquote,
.howto-content blockquote p {
    text-align: left;
    display: block;
    margin-bottom: 1rem;
}

.howto-content ul {
    padding-left: 2rem;
}

.howto-content blockquote {
    margin-left: 0;
    padding-left: 1rem;
}

.howto-content .title-container {
    text-align: left;
}

.howto-content .subtitle {
    text-align: left;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 2px 0;
    transition: 0.3s;
}

.menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.menu-overlay.active {
    display: block;
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 250px;
        background-color: var(--bg-secondary);
        flex-direction: column;
        padding: 80px 20px;
        transition: 0.3s;
        z-index: 1000;
    }

    .nav-links.active {
        right: 0;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .navbar {
        flex-direction: row;
    }
    
    .calculator-container,
    .input-group,
    .result-item,
    .button-group {
        flex-direction: column;
    }
}

.info-icon {
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    text-align: center;
    line-height: 20px;
    cursor: pointer;
    margin-left: 5px;
    vertical-align: middle;
}

.modal-box {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--bg-secondary);
    border: 1px solid var(--accent-color);
    padding: 10px;
    border-radius: 5px;
    z-index: 1000;
    width: 90%;
    max-width: 100%;
    color: var(--text-primary);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    font-size: 0.9rem;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    opacity: 0;
    visibility: hidden;
    overflow-x: auto;
    white-space: nowrap;
}

.modal-box[style*="display: block"] {
    opacity: 1;
    visibility: visible;
}

.modal-box table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.modal-box th, .modal-box td {
    border: 1px solid var(--input-border);
    padding: 8px;
    text-align: center; /* Zentriert den Text in den Zellen */
}

.modal-box th {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-box td {
    background-color: var(--input-bg);
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .modal-box table {
        font-size: 0.8rem;
    }
}