:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg: #0f172a;
    --card-bg: #1e293b;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --border: #334155;
    --success: #22c55e;
    --danger: #ef4444;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.overlay.hidden {
    display: none;
}

.login-card {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 1.5rem;
    border: 1px solid var(--border);
    text-align: center;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.login-card h2 {
    margin-bottom: 2rem;
    font-size: 1.5rem;
}

.login-card input {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1.5rem;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 0.5rem;
    text-align: center;
    font-size: 1.1rem;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    margin-bottom: 3rem;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

header h1 span {
    background: linear-gradient(to right, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-muted);
}

.tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    justify-content: center;
}

.tab-btn {
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: var(--primary);
    border-color: var(--primary);
}

.tab-btn:hover:not(.active) {
    border-color: var(--primary);
}

.tab-content.hidden {
    display: none;
}

.card {
    background: var(--card-bg);
    border-radius: 1rem;
    border: 1px solid var(--border);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.status-badge {
    padding: 0.25rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    background: var(--bg);
    border: 1px solid var(--border);
}

.status-badge.running {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
    border-color: var(--success);
}

.status-badge.stopped {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border-color: var(--danger);
}

.security-settings {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg);
    border-radius: 0.5rem;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.security-settings label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}

.security-settings input {
    flex: 1;
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    outline: none;
}

.security-settings input:focus {
    border-color: var(--primary);
}

.simple-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--bg);
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border);
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    min-width: 120px;
}

.form-group input {
    flex: 1;
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary);
}

.editor-container.hidden {
    display: none;
}

.proxy-builder {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg);
    border-radius: 0.5rem;
    border: 1px dashed var(--border);
}

.proxy-builder h3 {
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    color: var(--text-muted);
}

.builder-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr auto;
    gap: 0.5rem;
}

.builder-grid input, .builder-grid select {
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.5rem;
    border-radius: 0.25rem;
    outline: none;
    font-size: 0.85rem;
}

.builder-grid input:focus, .builder-grid select:focus {
    border-color: var(--primary);
}

.btn-add {
    background: var(--primary);
    color: white;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.editor-container textarea {
    width: 100%;
    height: 300px;
    background: var(--bg);
    color: #e2e8f0;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 1rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    resize: vertical;
    outline: none;
}

.editor-container textarea:focus {
    border-color: var(--primary);
}

.actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

.btn-save {
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-save:hover {
    background: var(--bg);
}

.btn-start {
    background: var(--primary);
    color: white;
}

.btn-start:hover {
    background: var(--primary-hover);
}

.btn-stop {
    background: var(--danger);
    color: white;
}

.log-card h3 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.log-viewer {
    background: #000;
    color: #10b981;
    height: 200px;
    border-radius: 0.5rem;
    padding: 1rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.85rem;
    overflow-y: auto;
    white-space: pre-wrap;
}

.domain-list {
    margin: 1.5rem 0;
    background: var(--bg);
    padding: 1rem;
    border-radius: 0.5rem;
}

.domain-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
}

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

.domain-info {
    display: flex;
    flex-direction: column;
}

.domain-name {
    font-weight: 600;
    color: var(--primary);
}

.domain-target {
    font-size: 0.8rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
}