:root {
    --primary: #d4a574;
    --bg: #0a0a0a;
    --bg-card: #141414;
    --border: #2a2a2a;
    --text: #e0e0e0;
    --text-muted: #888;
    --success: #4ade80;
    --warning: #fbbf24;
    --error: #ef4444;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.8;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 60px 24px;
}

.header {
    text-align: center;
    margin-bottom: 48px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.logo i {
    font-size: 32px;
    color: var(--primary);
}

.logo h1 {
    font-size: 28px;
    font-weight: 600;
    color: var(--text);
}

.subtitle {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.stats {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    background: rgba(212, 165, 116, 0.1);
    font-size: 14px;
    color: var(--text-muted);
}

.stats i {
    color: var(--primary);
}

.main-content {
    padding: 32px 0;
    margin-bottom: 48px;
}

.section-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 32px;
    color: var(--text);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 8px;
}

.form-group label i {
    color: var(--primary);
    font-size: 16px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 15px;
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.05);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
}

.captcha-wrapper {
    margin-bottom: 24px;
    display: flex;
    justify-content: center;
}

.submit-btn {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: var(--bg);
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
}

.submit-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.submit-btn:not(:disabled):hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(212, 165, 116, 0.3);
}

.loading {
    display: none;
    text-align: center;
    padding: 24px;
}

.loading.active {
    display: block;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 12px;
}

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

.loading p {
    color: var(--text-muted);
    font-size: 14px;
}

.result {
    display: none;
    text-align: center;
    padding: 32px 0;
    margin-top: 32px;
}

.result.active {
    display: block;
}

.result i {
    font-size: 40px;
    margin-bottom: 12px;
}

.result.success i {
    color: var(--success);
}

.result.error i {
    color: var(--error);
}

.result.warning i {
    color: var(--warning);
}

.result h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.result p {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 16px;
}

.alias-display {
    display: none;
    background: rgba(255, 255, 255, 0.03);
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-family: 'Courier New', monospace;
    font-size: 14px;
    word-break: break-all;
    position: relative;
    padding-right: 48px;
}

.alias-display.active {
    display: block;
}

.copy-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(212, 165, 116, 0.2);
    color: var(--primary);
    border: none;
    padding: 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.copy-btn:hover {
    background: rgba(212, 165, 116, 0.3);
}

.copy-btn i {
    font-size: 16px;
}

.info-section {
    margin-top: 64px;
    padding-top: 48px;
    border-top: 1px solid var(--border);
}

.info-item {
    display: flex;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}

.info-item:last-child {
    border-bottom: none;
}

.info-item i {
    font-size: 24px;
    color: var(--primary);
    flex-shrink: 0;
}

.info-item.warning i {
    color: var(--warning);
}

.info-item h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.info-item p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.5;
}

footer {
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
    font-size: 13px;
}

@media (max-width: 640px) {
    .container {
        padding: 40px 20px;
    }

    .main-card {
        padding: 24px;
    }

    .logo h1 {
        font-size: 24px;
    }
}