/* ======================================================= */
/* === COMPLETE AND FINAL STYLESHEET === */
/* ======================================================= */

/* --- 1. COLOR DEFINITIONS (THEMES) --- */
:root {
    /* Light Mode (Default) */
    --color-bg: #FEFEFE;
    --color-bg-alt: #FFFFFF;
    --color-bg-box: #f8f9fa;
    --color-text-primary: #333;
    --color-text-secondary: #555;
    --color-text-muted: #6c757d;
    --color-border: #000;
    --color-border-alt: #E0E0E0;
    --color-border-dashed: #E0E0E0;
    --color-shadow-rgb: 0, 0, 0;
    --color-accent-green: #28a745;
    --color-accent-red: #dc3545;
    --color-accent-blue: #007bff;
    --color-accent-blue-hover: #0056b3;
    --color-button-hover-bg: #e9ecef;
    --color-button-hover-border: #aaa;
}

body.dark-mode {
    /* Dark Mode Overrides */
    --color-bg: #121212;
    --color-bg-alt: #1e1e1e;
    --color-bg-box: #2a2a2a;
    --color-text-primary: #e0e0e0;
    --color-text-secondary: #c0c0c0;
    --color-text-muted: #888;
    --color-border: #e0e0e0;
    --color-border-alt: #444;
    --color-border-dashed: #444;
    --color-shadow-rgb: 0, 0, 0; /* Shadow remains black but less visible */
    /* Accents can often stay the same, or be slightly desaturated if preferred */
    --color-accent-green: #28a745;
    --color-accent-red: #dc3545;
    --color-accent-blue: #007bff;
    --color-accent-blue-hover: #0056b3;
    --color-button-hover-bg: #343a40;
    --color-button-hover-border: #6c757d;
}


/* --- Global Styles & Layout --- */
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; display: flex; margin: 0; background-color: var(--color-bg); color: var(--color-text-primary); transition: background-color 0.3s ease, color 0.3s ease; }
/* --- Sidebar (Desktop) --- */
.sidebar { width: 200px; min-width: 200px; background-color: var(--color-bg-alt); height: 100vh; padding: 25px 15px; border-right: 2px dashed var(--color-border-dashed); display: flex; flex-direction: column; align-items: center; }
.sidebar .logo { width: 100%; text-align: center; margin-bottom: 50px; }
.sidebar .logo img { max-width: 120px; }
.sidebar nav { width: 100%; }
.sidebar nav a { display: block; background-color: var(--color-bg-alt); color: var(--color-text-secondary); padding: 12px 20px; text-decoration: none; border: 1px solid var(--color-border-alt); font-size: 18px; font-weight: 500; margin-bottom: 15px; text-align: center; }
.sidebar nav a.active { background-color: var(--color-bg-box); border: 2px solid var(--color-border); font-weight: bold; }

body.landing {
    display: block;
}

/* --- Dark Mode Toggle Switch (with Icons) --- */
.theme-switch-wrapper { display: flex; align-items: center; justify-content: center; }
.theme-switch { display: inline-block; height: 30px; position: relative; width: 60px; }
.theme-switch input { display: none; }

.slider {
    background-color: #7c7c7c;
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s;
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: space-around; /* Distribute icons */
    padding: 0 5px;
}

/* --- The Icons --- */
.slider i {
    color: #f0f0f0;
    font-size: 14px;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

/* --- Light Mode State (Default) --- */
.slider .fa-sun {
    opacity: 1; /* Sun is visible */
}
.slider .fa-moon {
    opacity: 0; /* Moon is hidden */
}

/* --- Dark Mode State (when checkbox is checked) --- */
input:checked + .slider {
    background-color: var(--color-accent-blue);
}

input:checked + .slider .fa-sun {
    opacity: 0; /* Sun is hidden */
}

input:checked + .slider .fa-moon {
    opacity: 1; /* Moon is visible */
}

/* We remove the old slider circle */
.slider:before {
    display: none;
}

/* --- Main Content --- */
.main-content { flex-grow: 1; padding: 25px 40px; }
.main-content h1 { color: var(--color-text-primary); font-size: 24px; font-weight: 500; margin-top: 0; margin-bottom: 30px; }

/* --- Shared Components --- */
.content-box { border: 1px solid var(--color-border); padding: 20px; margin-bottom: 30px; background-color: var(--color-bg-alt); }
.dual-container { display: flex; gap: 40px; }
.dual-container > div { flex: 1; }
.list-table { width: 100%; border-collapse: collapse; }
.list-table td { padding: 8px 0; border-bottom: 1px solid #EEE; font-size: 16px; }
.list-table tr:last-child td { border-bottom: none; }
.list-table td:last-child { text-align: right; font-weight: bold; }

/* --- Dashboard Specific --- */
.graph-controls { display: flex; gap: 5px; margin-bottom: 15px; }
.graph-controls button, .year-controls button { background: var(--color-bg-alt); border: 1px solid var(--color-border); padding: 5px 15px; cursor: pointer; color: var(--color-text-primary); }
.graph-controls button.active, .year-controls button.active { background-color: var(--color-button-hover-bg); border-color: var(--color-button-hover-border); }
/*.year-controls { position: absolute; bottom: 25px; left: 50%; transform: translateX(-50%); } */

/* --- Graphique Specific --- */
.categories-container { padding-left: 30px; }
.categories-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.categories-grid button { background: #fff; border: 1px solid #000; padding: 10px; text-align: center; cursor: pointer; transition: background-color 0.2s ease, border-color 0.2s ease; }
.categories-grid button.active { font-weight: bold; }
.categories-grid button[data-category="Tous"].active { background-color: #E9ECEF; border-color: #ADB5BD; }
.analytics-data-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.analytics-data-table th, .analytics-data-table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid #f0f0f0; }
.analytics-data-table th { font-weight: 600; color: #555; }
.analytics-data-table .col-amount, .analytics-data-table .col-percentage { text-align: right; font-weight: 500; width: 100px; }
.analytics-data-table .col-percentage { color: #6c757d; width: 80px; }

/* --- Règles Specific --- */
.rules-list .list-item { display: flex; align-items: center; justify-content: space-between; padding: 10px 5px; border-bottom: 1px solid #EEE; }
.rules-list .item-details { display: flex; gap: 20px; flex-grow: 1; }
.rules-list .item-details span { min-width: 100px; }
.edit-btn, .delete-btn { background: transparent; border: none; cursor: pointer; font-size: 1.1rem; padding: 0 8px; color: #555; transition: color 0.2s ease-in-out; }
.edit-btn:hover { color: #007bff; }
.delete-btn:hover { color: #dc3545; }

/* --- Transaction List Icons --- */
.transaction-list td { vertical-align: middle; }
.transaction-list .transaction-amount { width: 100px; text-align: right; }
.transaction-list .transaction-actions { width: 80px; text-align: right; display: flex; justify-content: flex-end; }
.transaction-list .transaction-actions form { display: inline; margin: 0; }
.transaction-actions .edit-transaction-btn { background: transparent; border: none; cursor: pointer; font-size: 1.1rem; padding: 0 8px; color: #555; transition: color 0.2s ease-in-out; }
.transaction-actions .edit-transaction-btn:hover { color: #007bff; }

/* --- Paramètres & Modal Forms --- */
.settings-form { max-width: 500px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 500; }
.form-group input, .form-group select { width: 100%; padding: 10px; border: 1px solid #000; font-size: 16px; box-sizing: border-box; }
.btn-save { background-color: #D4EDDA; border: 1px solid #155724; padding: 12px 30px; font-size: 16px; cursor: pointer; width: 100%; max-width: 500px; margin-top: 10px; }
.message { padding: 15px; margin-bottom: 20px; border-radius: 5px; max-width: 500px; }
.success { color: #155724; background-color: #D4EDDA; border: 1px solid #C3E6CB; }
.error { color: #721c24; background-color: #F8D7DA; border: 1px solid #F5C6CB; }
.form-row { display: flex; gap: 20px; align-items: flex-start; }
.form-row .form-group { flex: 1; margin-bottom: 0; }

/* --- REDESIGNED MODAL STYLES --- */
.modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: rgba(0,0,0,0.5); }
.modal-content { background-color: var(--color-bg); margin: 10% auto; padding: 25px; border: 1px solid var(--color-border-alt); width: 80%; max-width: 500px; border-radius: 8px; position: relative; }
.close-button { color: #aaa; position: absolute; top: 10px; right: 20px; font-size: 28px; font-weight: bold; cursor: pointer; }
.close-button:hover, .close-button:focus { color: var(--color-text-primary); }
.modal-content h2 { text-align: center; font-weight: 500; margin-bottom: 25px; }
.transaction-type-selector { display: flex; border: 1px solid var(--color-border-alt); border-radius: 8px; overflow: hidden; margin-bottom: 20px; }
.type-btn { flex: 1; padding: 12px; background-color: var(--color-bg-box); border: none; cursor: pointer; font-size: 16px; transition: background-color 0.2s ease; color: var(--color-text-secondary); }
.type-btn.active.depense { background-color: var(--color-accent-red); color: white; font-weight: bold; }
.type-btn.active.recette { background-color: var(--color-accent-green); color: white; font-weight: bold; }
.hidden-radio { display: none; }
.modal .settings-form input[type="text"], .modal .settings-form input[type="number"], .modal .settings-form input[type="date"], .modal .settings-form select { background-color: var(--color-bg-box); border: 1px solid var(--color-border-alt); border-radius: 8px; padding: 12px; color: var(--color-text-primary); transition: border-color 0.2s ease, box-shadow 0.2s ease; }
.modal .settings-form input:focus, .modal .settings-form select:focus { outline: none; border-color: var(--color-accent-blue); box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2); }
.modal .btn-save { width: 100%; padding: 14px; font-size: 16px; font-weight: bold; color: white; border: none; border-radius: 8px; margin-top: 10px; cursor: pointer; transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.1s ease; }
.btn-save.btn-red { background-color: var(--color-accent-red); box-shadow: 0 4px 10px rgba(var(--color-shadow-rgb), 0.3); }
.btn-save.btn-green { background-color: var(--color-accent-green); box-shadow: 0 4px 10px rgba(var(--color-shadow-rgb), 0.3); }
.modal .btn-save:hover { filter: brightness(95%); }
.modal .btn-save:active { transform: translateY(2px); box-shadow: none; }

/* --- REDESIGNED Floating Action Button --- */
.fab { position: fixed; z-index: 998; right: 40px; bottom: 40px; width: 56px; height: 56px; background-color: var(--color-accent-green); color: white; border: none; border-radius: 50%; box-shadow: 0 4px 12px rgba(var(--color-shadow-rgb), 0.15), 0 2px 6px rgba(var(--color-shadow-rgb), 0.1); cursor: pointer; transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.2s cubic-bezier(0.4, 0, 0.2, 1); }
#addTransactionBtn i { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); font-size: 32px; }
.fab:hover { transform: translateY(-4px); box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2), 0 4px 8px rgba(0, 0, 0, 0.15); }
.fab:active { transform: translateY(-1px); box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15); }

/* --- Tab Navigation System --- */
.tab-nav {
    display: flex;
    border-bottom: 2px solid var(--color-border-alt);
    margin-bottom: 25px;
}

.tab-btn {
    padding: 12px 20px;
    cursor: pointer;
    background-color: transparent;
    border: none;
    font-size: 18px;
    font-weight: 500;
    color: var(--color-text-muted);
    border-bottom: 3px solid transparent;
    margin-bottom: -2px; /* Pull the bottom border up to overlap the main border */
    transition: color 0.2s ease, border-color 0.2s ease;
}

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

.tab-btn.active {
    color: var(--color-accent-blue);
    border-bottom-color: var(--color-accent-blue);
}

/* --- Tab Content Panes --- */
.tab-pane {
    display: none; /* All panes are hidden by default */
}

.tab-pane.active {
    display: block; /* Only the active pane is shown */
}

/* ======================================================= */
/* === MOBILE NAVIGATION & RESPONSIVE DESIGN (Corrected) === */
/* ======================================================= */

/* --- Default state (hidden on desktop) --- */
.mobile-nav-toggle, .nav-overlay { display: none; }

/* --- Media Query for Mobile --- */
@media (max-width: 768px) {
    /* Layout */
    body { flex-direction: column; }
    .main-content { padding: 20px 15px; }
    .dual-container { flex-direction: column; gap: 20px; }
    .categories-grid { grid-template-columns: repeat(2, 1fr); }
    .modal-content { width: 90%; margin: 15% auto; }
    .form-row { flex-direction: column; gap: 0; }
    .fab { right: 20px; bottom: 20px; }
    .categories-container { padding-left: 0; }

    /* Mobile Nav Elements */
    .mobile-nav-toggle { display: block; position: fixed; top: 15px; right: 15px; z-index: 1001; background-color: #fff; border: 1px solid #ccc; border-radius: 8px; width: 45px; height: 45px; font-size: 20px; cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
    .nav-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.5); z-index: 999; }
    .nav-overlay.overlay-open { display: block; }
    
    .sidebar { background-color: var(--color-bg-alt); position: fixed; top: 0; left: 0; height: 100%; z-index: 1000; transform: translateX(-100%); transition: transform 0.3s ease-in-out; box-shadow: 4px 0px 15px rgba(0,0,0,0.1); }
    .sidebar.sidebar-open { transform: translateX(0); }
}