:root {
    /* Palette */
    --space-indigo: #2B2D42;
    --lavender-grey: #8D99AE;
    --platinum: #EDF2F4;
    --punch-red: #EF233C;
    --flag-red: #D90429;
    --white: #FFFFFF;

    /* Shadows & Effects */
    --shadow-soft: 0 20px 40px -10px rgba(43, 45, 66, 0.15);
    --shadow-hover: 0 25px 50px -12px rgba(43, 45, 66, 0.25);
    --glass-border: 1px solid rgba(255, 255, 255, 0.5);

    /* Radius */
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--platinum);
    color: var(--space-indigo);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 1rem;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 2.5rem;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.05em;
    color: var(--space-indigo);
}

header p {
    color: var(--lavender-grey);
    font-size: 1.2rem;
    font-weight: 500;
}

/* Card */
.glass-container {
    /* Keeping class name for compatibility or mapping to glass-card */
    background: var(--white);
    width: 100%;
    max-width: 800px;
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(255, 255, 255, 1);
    position: relative;
    overflow: hidden;
    margin: 0 auto;
}

/* Inputs */
.input-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

label {
    color: var(--space-indigo);
    font-weight: 600;
    font-size: 0.95rem;
    margin-left: 0.25rem;
}

input[type="text"] {
    width: 100%;
    border: 2px solid transparent;
    background: #F8F9FA;
    padding: 1rem;
    font-family: inherit;
    font-size: 1rem;
    color: var(--space-indigo);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

input[type="text"]:focus {
    outline: none;
    background-color: var(--white);
    border-color: rgba(239, 35, 60, 0.3);
    box-shadow: 0 0 0 4px rgba(239, 35, 60, 0.1);
}

/* Buttons */
.primary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    background-color: var(--punch-red);
    color: white;
    box-shadow: 0 10px 20px -5px rgba(239, 35, 60, 0.4);
    margin-top: 0.5rem;
}

.primary-btn:hover {
    background-color: var(--flag-red);
    transform: translateY(-2px);
    box-shadow: 0 15px 25px -5px rgba(239, 35, 60, 0.5);
}

/* Output Area */
.output-section {
    position: relative;
    background-color: #F0F4F8;
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-top: 2rem;
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.icon-btn {
    background: white;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--space-indigo);
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    padding: 0;
    font-size: 0;
    /* Hide text for icon-only style if preferred, or keep text */
}

.icon-btn:hover {
    color: var(--punch-red);
    transform: scale(1.05);
}

/* Fix for the existing "Kopieren" text in button if we want to keep it */
.icon-btn {
    width: auto;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    gap: 0.5rem;
}

textarea#output {
    width: 100%;
    min-height: 250px;
    background: transparent;
    border: none;
    color: #4A4E69;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    resize: vertical;
}

textarea#output:focus {
    outline: none;
}

/* Footer & AI Buttons */
footer {
    margin-top: 4rem;
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #E0E4E8;
    width: 100%;
}

footer p {
    margin-bottom: 1rem;
    color: var(--lavender-grey);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.ai-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.ai-btn {
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: var(--transition);
    border: 1px solid transparent;
    color: var(--space-indigo);
    background-color: white;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.ai-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.ai-btn.gemini:hover {
    color: #4285F4;
}

.ai-btn.chatgpt:hover {
    color: #10a37f;
}

.ai-btn.lmarena:hover {
    color: #8b5cf6;
}

.ai-btn.deepseek:hover {
    color: #3b82f6;
}

/* Responsive */
@media (max-width: 600px) {
    .glass-container {
        padding: 1.5rem;
        width: 100%;
        border-radius: var(--radius-md);
    }

    h1 {
        font-size: 2.5rem;
    }

    .ai-buttons {
        flex-direction: column;
    }

    .ai-btn {
        width: 100%;
        text-align: center;
    }
}