:root {
    --bg-color: #0d1117;
    --card-bg: rgba(22, 27, 34, 0.8);
    --primary-color: #58a6ff;
    --accent-color: #1f6feb;
    --text-color: #c9d1d9;
    --input-bg: #010409;
    --border-color: #30363d;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
    width: 320px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family);
    overflow: hidden;
}

.container {
    padding: 20px;
    background: radial-gradient(circle at top right, rgba(88, 166, 255, 0.1), transparent);
}

header h1 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    text-align: center;
    background: linear-gradient(135deg, #58a6ff, #1f6feb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.qr-container {
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    backdrop-filter: blur(8px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

.qr-container:hover {
    transform: translateY(-2px);
}

#qr {
    display: block;
    max-width: 100%;
    height: auto !important;
    image-rendering: pixelated;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

input {
    width: 100%;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    color: var(--text-color);
    font-size: 0.9rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.2);
}

button {
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

button:hover {
    background-color: #388bfd;
}

button:active {
    transform: scale(0.98);
}

footer {
    margin-top: 15px;
    text-align: center;
}

.status {
    font-size: 0.75rem;
    color: #8b949e;
    opacity: 0.8;
}

.short-url-container {
    display: none;
    /* Changed to flex when active */
    gap: 12px;
    margin-top: 12px;
    animation: fadeIn 0.3s ease;
}

.short-url-container input {
    color: var(--primary-color);
    font-weight: 500;
}

.short-url-container button {
    white-space: nowrap;
    background-color: #238636;
}

.short-url-container button:hover {
    background-color: #2ea043;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}