:root {
    --bg-color: #f0f2f5;
    --card-bg: #ffffff;
    --text-color: #333333;
    --secondary-text: #666666;
    --border-color: #e0e0e0;
    --accent-color: #2e8b57;
    --button-bg: #2e8b57;
    --button-text: #ffffff;
    --button-hover: #287a4c;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    --input-bg: #f8f8f8;
    --input-border: #cccccc;
    --danger-color: #e74c3c;
    --toast-bg: #333;
    --toast-text: #fff;
}

body.dark-mode {
    --bg-color: #2c3e50;
    --card-bg: #34495e;
    --text-color: #ecf0f1;
    --secondary-text: #bdc3c7;
    --border-color: #44607a;
    --button-bg: #3498db;
    --button-text: #ffffff;
    --button-hover: #2980b9;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
    --input-bg: #4c627a;
    --input-border: #6d849b;
    --danger-color: #e74c3c;
    --toast-bg: #ecf0f1;
    --toast-text: #333;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    margin: 0;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.container {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    width: 100%;
    max-width: 425px;
    box-shadow: var(--shadow);
    transition: background-color 0.3s, box-shadow 0.3s;
}

h2 {
    margin-top: 0;
    text-align: center;
    font-weight: 700;
    color: var(--accent-color);
    letter-spacing: -0.5px;
}

.number-control {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 15px 0;
    padding: 10px 15px;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: background-color 0.3s, border-color 0.3s;
}

.number-control label {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--secondary-text);
    display: flex;
    align-items: center;
}

.number-control b {
    font-size: 1.2rem;
    margin-left: 8px;
    color: var(--text-color);
}

.number-control div {
    display: flex;
    gap: 8px;
}

.number-control button {
    padding: 8px 12px;
    border: none;
    background: var(--button-bg);
    color: var(--button-text);
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    transition: background-color 0.3s, opacity 0.3s;
}

.number-control button:hover:not(:disabled) {
    background: var(--button-hover);
}

.number-control button:disabled {
    background: var(--border-color);
    color: var(--secondary-text);
    cursor: not-allowed;
    opacity: 0.6;
}

.option {
    display: flex;
    align-items: center;
    margin: 10px 0;
    flex-wrap: wrap;
}

.option input[type=checkbox] {
    margin-right: 12px;
    cursor: pointer;
    accent-color: var(--accent-color);
}

.generate-btn {
    display: block;
    width: 100%;
    padding: 15px;
    margin-top: 20px;
    margin-bottom: 20px;
    background: var(--button-bg);
    color: var(--button-text);
    font-weight: bold;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: background-color 0.3s, opacity 0.3s;
}

.generate-btn:hover:not(:disabled) {
    background: var(--button-hover);
}

.generate-btn:disabled {
    background: var(--border-color);
    color: var(--secondary-text);
    cursor: not-allowed;
    opacity: 0.6;
}

.password-item {
    margin-top: 8px;
    padding: 8px;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: background-color 0.3s;
}

.password-text {
    font-family: 'Fira Code', monospace;
    font-size: 1.1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    overflow-wrap: break-word;
    word-break: break-word;
}

.strength-bar {
    height: 8px;
    border-radius: 4px;
    margin-top: 10px;
    background: var(--border-color);
}

.strength-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s, background-color 0.3s;
}

.strength-info {
    font-size: 0.9rem;
    margin-top: 8px;
    color: var(--secondary-text);
}

.copy-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--secondary-text);
    transition: color 0.3s;
}

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

.all-actions {
    margin-top: 20px;
    text-align: center;
}

.all-actions .copy-all-btn {
    padding: 10px 20px;
    border: 1px solid var(--accent-color);
    background: transparent;
    color: var(--accent-color);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.all-actions .copy-all-btn:hover {
    background: var(--accent-color);
    color: var(--button-text);
}

/* Stackable Toast Container */
#toast-container {
    position: fixed;
    bottom: 20px;
    left: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
    pointer-events: none;
}

.toast {
    background: var(--toast-bg);
    color: var(--toast-text);
    padding: 12px 20px;
    border-radius: 8px;
    opacity: 0;
    transform: translateY(100%);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: all;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: background-color 0.3s, color 0.3s;
}

/* CSS tambahan untuk input teks awal */
#initial-text-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

#initial-text-input {
    padding: 8px 10px;
    border: 1px solid var(--input-border);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--text-color);
    flex-grow: 1;
    transition: all 0.3s;
}

#initial-text-input:disabled {
    background: var(--border-color);
    cursor: not-allowed;
}

@media (max-width: 600px) {
    body {
        padding: 10px;
        align-items: flex-start;
    }
    #toast-container {
        bottom: unset;
        right: unset;
        top: 20px;
        left: 20px;
        flex-direction: column-reverse;
    }
}