:root {
    --bg-body: #121212;
    --bg-card: #1e1e1e;
    --text-main: #e0e0e0;
    --text-muted: #a0a0a0;
    --primary: #4da3ff;
    --primary-hover: #7eb4ff;
    --border: #333333;
    --input-bg: #2d2d2d;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    --radius: 16px;
    --badge-bg: #2d3748;
    --yellow: #f1c40f;
    --red: #e74c3c;
}

body.light-mode {
    --bg-body: #f0f2f5;
    --bg-card: #ffffff;
    --text-main: #2c3e50;
    --text-muted: #6c757d;
    --primary: #007bff;
    --primary-hover: #0056b3;
    --border: #dee2e6;
    --input-bg: #f8f9fa;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    --badge-bg: #e2e8f0;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-size: 14px;
    transition: background 0.3s, color 0.3s;
}

.app-wrapper {
    width: 100%;
    max-width: 1100px;
    padding: 30px;
}

/* Header & Brand */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    /* Alignement haut pour gérer la note de traduction */
    margin-bottom: 25px;
}

.brand-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.brand h1 {
    margin: 0;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary);
}

.version-badge {
    background: var(--yellow);
    color: var(--bg-card);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: bold;
}

/* Open Source Badge */
.opensource-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: var(--badge-bg);
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    text-decoration: none;
    width: fit-content;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.opensource-badge:hover {
    color: var(--primary);
    border-color: var(--primary);
    background-color: var(--input-bg);
}

/* Header Controls & Translation Note */
.header-controls-wrapper {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 5px;
}

.header-controls {
    display: flex;
    gap: 15px;
    align-items: center;
}

.btn-text {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
}

.btn-text:hover {
    color: var(--primary);
}

.lang-select {
    padding: 5px 10px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--input-bg);
    color: var(--text-main);
    font-size: 0.9rem;
}

.trans-note {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-style: italic;
    opacity: 0.7;
    max-width: 200px;
    text-align: right;
}

.card {
    background: var(--bg-card);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.main-grid {
    display: grid;
    grid-template-columns: 40% 1fr;
    gap: 50px;
}

@media (max-width: 900px) {
    .main-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

.settings-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.section-title {
    margin: 0 0 15px 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.control-row {
    margin-bottom: 12px;
}

.slider-wrapper {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 8px;
}

input[type="range"] {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    outline: none;
    -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
}

input[type="number"] {
    width: 65px;
    padding: 6px;
    font-size: 0.95rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--input-bg);
    color: var(--text-main);
    text-align: center;
}

.options-grid {
    display: grid;
    gap: 14px;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: 0.95rem;
    user-select: none;
}

.checkbox-wrapper:hover {
    color: var(--primary);
}

.checkbox-wrapper input {
    display: none;
}

.custom-check {
    width: 18px;
    height: 18px;
    border: 2px solid var(--text-muted);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.checkbox-wrapper input:checked+.custom-check {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-wrapper input:checked+.custom-check::after {
    content: '✓';
    color: var(--bg-card);
    font-weight: bold;
    font-size: 12px;
}

.btn-link {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
    margin-top: 5px;
}

.advanced-panel {
    margin-top: 15px;
    padding: 15px;
    background: var(--input-bg);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.advanced-panel.hidden {
    display: none;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.input-group span {
    width: 35px;
    font-weight: bold;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.input-group input {
    flex: 1;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg-card);
    color: var(--text-main);
    font-family: 'Roboto Mono', monospace;
    font-size: 0.85rem;
}

.prefs-container {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.save-prefs-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.output-col {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.sticky-container {
    position: sticky;
    top: 30px;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.section-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: block;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.password-container {
    position: relative;
    display: flex;
    flex-direction: column;
    margin-bottom: 15px;
}

.password-content {
    width: 100%;
    background: var(--input-bg);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 25px;
    padding-right: 60px;
    font-family: 'Roboto Mono', monospace;
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--primary);
    word-break: break-all;
    white-space: pre-wrap;
    min-height: 140px;
    max-height: 400px;
    overflow-y: auto;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.password-content::-webkit-scrollbar {
    width: 6px;
}

.password-content::-webkit-scrollbar-track {
    background: transparent;
}

.password-content::-webkit-scrollbar-thumb {
    background-color: var(--border);
    border-radius: 3px;
}

.btn-icon {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    width: 42px;
    height: 42px;
    cursor: pointer;
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.1s, border-color 0.2s;
    z-index: 2;
}

.btn-icon:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.btn-icon:active {
    transform: scale(0.92);
}

.entropy-badge {
    margin: 5px 0 25px 0;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: right;
    font-family: 'Roboto Mono', monospace;
}

.action-footer {
    margin-top: auto;
}

.btn-large {
    width: 100%;
    padding: 20px;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: 10px;
    background: var(--primary);
    color: var(--bg-card);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.1s, box-shadow 0.2s, background 0.2s;
}

.btn-large:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-large:active {
    transform: translateY(1px);
    box-shadow: none;
}

.app-footer {
    text-align: center;
    margin-top: 40px;
    color: var(--text-muted);
    font-size: 0.75rem;
    border-top: 1px solid var(--border);
    padding-top: 20px;
}