:root {
    --bg-color: #050a05;
    --panel-bg: #0a140a;
    --primary-green: #00ff41;
    --dark-green: #008f11;
    --text-main: #e0ffe0;
    --text-muted: #80aa80;
    --danger: #ff003c;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    overflow-x: hidden;
}

.app-container {
    padding: 15px;
    max-width: 500px;
    margin: 0 auto;
}

.channel-link {
    display: block;
    text-align: center;
    background: var(--dark-green);
    color: #fff;
    text-decoration: none;
    padding: 10px;
    border-radius: 8px;
    font-weight: bold;
    margin-bottom: 20px;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.2);
    transition: all 0.4s ease;
}

.screen {
    opacity: 0;
    transform: translateY(20px);
    display: none;
    transition: all 0.4s ease;
}

.screen.active {
    opacity: 1;
    transform: translateY(0);
    display: block;
}

.status-card {
    background: var(--panel-bg);
    border: 1px solid var(--dark-green);
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(0, 255, 65, 0.1);
}

.status-card h1 {
    font-size: 36px;
    color: var(--primary-green);
    text-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
    margin-bottom: 10px;
}

.status-indicator {
    font-weight: bold;
}
.status-indicator.active-vpn { color: var(--primary-green); }
.status-indicator.inactive-vpn { color: var(--danger); }

.control-panel {
    background: var(--panel-bg);
    border: 1px solid #1a2a1a;
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 20px;
}

.control-panel h3 {
    margin-bottom: 15px;
    color: var(--primary-green);
    font-size: 16px;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

input[type="range"] {
    flex-grow: 1;
    accent-color: var(--primary-green);
}

.slider-value {
    font-weight: bold;
    font-size: 18px;
    min-width: 45px;
}

.cost-info p {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 5px;
}

.cyber-input {
    width: 100%;
    background: #000;
    border: 1px solid var(--dark-green);
    color: var(--primary-green);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 10px;
    font-size: 16px;
    outline: none;
}

.cyber-input:focus {
    box-shadow: 0 0 8px rgba(0, 255, 65, 0.4);
}

.hint {
    color: var(--text-muted);
    font-size: 12px;
    margin-bottom: 10px;
}

.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.4s ease;
    text-transform: uppercase;
}

.btn-primary {
    background: var(--primary-green);
    color: #000;
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.4);
}

.btn-primary:active {
    transform: scale(0.98);
    box-shadow: 0 0 5px rgba(0, 255, 65, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
    margin-top: 10px;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--dark-green);
    color: #fff;
}

.btn-action {
    background: linear-gradient(45deg, var(--dark-green), var(--primary-green));
    color: #000;
    margin-bottom: 20px;
}

.btn-back {
    background: none;
    border: none;
    color: var(--primary-green);
    font-size: 16px;
    margin-bottom: 20px;
    cursor: pointer;
}

.keys-container {
    background: var(--panel-bg);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--primary-green);
    margin-bottom: 20px;
}

.keys-container h2 {
    color: var(--primary-green);
    margin-bottom: 10px;
}

.btn-copy {
    margin-bottom: 15px;
    font-size: 14px;
}

.download-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dl-link {
    background: #111;
    color: #fff;
    text-decoration: none;
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #333;
    transition: all 0.3s;
}

.dl-link:hover {
    border-color: var(--primary-green);
}