:root {
    --primary: #FF6B6B;
    --primary-hover: #EE5253;
    --bg-dark: #1A1A1A;
    --card-bg: #2D2D2D;
    --text-main: #FFFFFF;
    --text-muted: #A0A0A0;
    --border: #404040;
    --success: #4CD137;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 480px;
    padding: 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--success);
    background: rgba(76, 209, 55, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
}

.dot {
    width: 6px;
    height: 6px;
    background-color: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--success);
}

.card {
    background-color: var(--card-bg);
    border-radius: 16px;
    padding: 32px;
    border: 1px solid var(--border);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.card-header {
    margin-bottom: 24px;
    text-align: center;
}

.card-header h1 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.card-header p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
}

input, textarea {
    width: 100%;
    padding: 12px 16px;
    background-color: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.2s;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    background-color: rgba(255,255,255,0.08);
}

button {
    width: 100%;
    padding: 14px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

button:hover {
    background-color: var(--primary-hover);
}

button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.loader {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.hidden {
    display: none;
}

.result-area {
    margin-top: 24px;
    padding: 16px;
    background-color: rgba(0,0,0,0.2);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.result-area h3 {
    font-size: 0.9rem;
    margin-bottom: 10px;
    color: var(--text-muted);
}

pre {
    white-space: pre-wrap;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    color: var(--success);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}