:root {
    --bg: #0e1117;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --card: #1e293b;
    --border: #334155;
    font-family: "Montserrat", sans-serif;
}


* {
    box-sizing: border-box;
    transition: 0.4s ease;
}


body {
    margin: 0;
    background: radial-gradient(circle at top, #1e293b, #0f172a);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    color: var(--text);
}

.container {
    width: 100%;
    max-width: 420px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

h1 {
    text-align: center;
    margin-bottom: 24px;
    font-size: 1.6rem;
}

.output {
    background: #0f172a;
    padding: 14px 16px;
    border-radius: 10px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
    word-break: break-all;
}

button {
    cursor: pointer;
    font-weight: 600;
    border-radius: 8px;
    border: none;
}

.btn {
    width: 100%;
    background: var(--accent);
    color: white;
    padding: 12px;
    margin-top: 10px;
    font-size: 1rem;
}

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


.copy {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    padding: 6px 12px;
}

.copy:hover {
    background: var(--accent);
    color: white;
}


.settings {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.range-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

input[type="range"] {
    width: 100%;
    margin-left: 10px;
}

.checkboxes label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 6px 0;
    font-size: 0.9rem;
    color: var(--muted);
    cursor: pointer;
}

input[type="checkbox"] {
    accent-color: var(--accent);
}

.strength {
    margin-top: 20px;
    background: #0f172a;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.strength-bar {
    height: 6px;
    background-color: #1e3a8a;
    border-radius: 999px;
    overflow: hidden;
    width: 100%;
    margin-top: 8px;
}

.strength-bar div {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #22c55e, #16a34a);
    transition: width 0.4s ease;
}

.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #1e293b;
    padding: 12px 16px;
    border-radius: 10px;
    color: white;
    display: none;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
}

.toast.show {
    display: block;
    animation: fadeIn 0.4s ease;
}


@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}