*, *::before, *::after {
    box-sizing: border-box;
}

:root {
    --bg-color: #0a0b10;
    --card-bg: #13151c;
    --text-main: #e4e6eb;
    --text-muted: #8b8d98;
    --accent-blue: #3b82f6;
    --accent-green: #22c55e;
    --accent-red: #ef4444;
    --accent-orange: #f59e0b;
    --accent-yellow: #eab308;
    --border-color: #2d3142;
    --input-bg: #0f111a;
}

body {
    background-color: var(--bg-color);
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
    color: var(--text-main);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
}

.wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    width: 100%;
    max-width: 450px;
}

.container {
    background-color: rgba(19, 21, 28, 0.95);
    backdrop-filter: blur(8px);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5), 0 0 15px rgba(59, 130, 246, 0.1);
    border: 1px solid var(--border-color);
    width: 100%;
}

.github-link {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.github-link:hover {
    color: var(--accent-blue);
    transform: translateY(2px);
    filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.6));
}

.github-link:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 4px;
}

h1 {
    font-family: 'Courier New', Courier, monospace;
    font-size: 26px;
    margin-top: 0;
    text-align: center;
    margin-bottom: 25px;
    color: var(--accent-blue);
    text-shadow: 0 0 8px rgba(59, 130, 246, 0.4);
    letter-spacing: 2px;
}

.input-group {
    position: relative;
    margin-bottom: 15px;
}

input[type="password"], input[type="text"] {
    width: 100%;
    padding: 12px 40px 12px 12px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    color: var(--text-main);
    font-family: 'Courier New', Courier, monospace;
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 16px;
    transition: all 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
}

.toggle-eye {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 4px;
}

.toggle-eye:hover {
    color: var(--text-main);
}

input:focus-visible, .toggle-eye:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

.switch input:focus-visible + .slider {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.4);
}

.toggle-eye svg {
    display: none;
}
.toggle-eye #eyeOpen {
    display: block;
}
.toggle-eye.password-text-visible #eyeOpen {
    display: none;
}
.toggle-eye.password-text-visible #eyeClosed {
    display: block;
}

.strength-bar {
    height: 6px;
    background-color: var(--border-color);
    border-radius: 3px;
    margin-bottom: 10px;
    transition: all 0.3s ease;
    overflow: hidden;
    width: 0%;
}

.strength-weak { width: 25%; background-color: var(--accent-red); box-shadow: 0 0 10px var(--accent-red); }
.strength-moderate { width: 50%; background-color: var(--accent-orange); box-shadow: 0 0 10px var(--accent-orange); }
.strength-strong { width: 75%; background-color: var(--accent-yellow); box-shadow: 0 0 10px var(--accent-yellow); }
.strength-very-strong { width: 100%; background-color: var(--accent-green); box-shadow: 0 0 10px var(--accent-green); }

.strength-text {
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--text-muted);
}

.tips-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 25px;
}

.tip-item {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 13px;
    background-color: var(--input-bg);
    border-left: 4px solid var(--text-muted);
    transition: all 0.2s ease;
    line-height: 1.4;
}

.tip-red { border-left-color: var(--accent-red); color: #fca5a5; box-shadow: -2px 0 8px rgba(239, 68, 68, 0.2); }
.tip-yellow { border-left-color: var(--accent-yellow); color: #fde68a; box-shadow: -2px 0 8px rgba(234, 179, 8, 0.2); }
.tip-green { border-left-color: var(--accent-green); color: #86efac; box-shadow: -2px 0 8px rgba(34, 197, 94, 0.2); }

.breach-section {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.toggle-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.switch {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 22px;
    flex-shrink: 0;
}

.switch input { display: none; }

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--border-color);
    transition: .4s;
    border-radius: 22px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--accent-blue);
    box-shadow: 0 0 5px rgba(59, 130, 246, 0.5);
}

input:checked + .slider:before {
    transform: translateX(18px);
}

.breach-status {
    margin-top: 15px;
    font-size: 14px;
    padding: 10px;
    border-radius: 6px;
    line-height: 1.4;
    font-family: 'Courier New', Courier, monospace;
}

.info-box {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 10px;
    background-color: var(--input-bg);
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    line-height: 1.5;
}

.hidden { display: none !important; }

@media (max-width: 480px) {
    body {
        padding: 10px;
        align-items: flex-start;
    }
    
    .container {
        padding: 25px 20px;
        box-shadow: none;
        border: 1px solid var(--border-color);
    }

    h1 {
        font-size: 22px;
        margin-bottom: 20px;
    }

    .toggle-container {
        font-size: 14px;
    }
}