/* Dark Mode Variables */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --popup-overlay: rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --border-color: #404040;
    --accent-color: #3b82f6;
    --accent-hover: #60a5fa;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --popup-overlay: rgba(0, 0, 0, 0.7);
}

/* Settings Button */
.settings-btn {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    margin: 0;
    transition: transform 0.3s ease;
    position: absolute;
    left: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
}

.settings-btn:hover {
    transform: translateY(-50%) rotate(45deg);
}

/* Header Left Section */
.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: 4rem;
}

.header-icon {
    margin-left: 0;
}

/* Settings Overlay */
.settings-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--popup-overlay);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.settings-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Settings Sidebar */
.settings-sidebar {
    position: fixed;
    top: 0;
    left: -300px;
    width: 320px;
    height: 100%;
    background: var(--bg-primary);
    box-shadow: 0 0 32px var(--shadow-color), 0 8px 32px rgba(59,130,246,0.08);
    border-top-right-radius: 18px;
    border-bottom-right-radius: 18px;
    transition: left 0.3s cubic-bezier(.4,2,.6,1);
    z-index: 2001;
    overflow-y: auto;
}

.settings-overlay.active .settings-sidebar {
    left: 0;
}

/* Settings Header */
.settings-header {
    padding: 1.2rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
    border-top: none;
}

.settings-header h2 {
    color: var(--accent-color);
    font-size: 1.15rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: 0.01em;
}

.settings-header h2 i {
    color: var(--accent-hover);
    font-size: 1.2rem;
}

.close-settings {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background 0.2s, color 0.2s, transform 0.3s;
}

.close-settings:hover {
    color: #fff;
    background: var(--accent-color);
    transform: rotate(90deg) scale(1.1);
}

/* Settings Content */
.settings-content {
    padding: 1.5rem;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.setting-label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-primary);
}

.setting-label i {
    color: var(--accent-color);
    font-size: 1.1rem;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: 0.3s;
    border-radius: 34px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

input:checked + .toggle-slider {
    background-color: var(--accent-color);
}

input:checked + .toggle-slider:before {
    transform: translateX(24px);
}

/* Dark Mode Styles for Existing Components */
[data-theme="dark"] body {
    background: var(--bg-primary);
    color: var(--text-primary);
}

[data-theme="dark"] .header {
    background: linear-gradient(to right, #1a237e, #1565c0);
}

[data-theme="dark"] .popup-content {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .form-group label {
    color: var(--text-secondary);
}

[data-theme="dark"] .form-group input::placeholder,
[data-theme="dark"] .form-group textarea::placeholder {
    color: var(--text-secondary);
}

[data-theme="dark"] .flatpickr-calendar {
    background: var(--bg-primary);
    border-color: var(--border-color);
    box-shadow: 0 0 20px var(--shadow-color);
}

[data-theme="dark"] .flatpickr-months {
    background: var(--accent-color);
}

[data-theme="dark"] .flatpickr-weekday {
    color: var(--text-secondary);
}

[data-theme="dark"] .flatpickr-day {
    color: var(--text-primary);
}

[data-theme="dark"] .flatpickr-day:hover {
    background: var(--bg-secondary);
}

[data-theme="dark"] .flatpickr-day.selected {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

/* Responsive Design Enhancements */
@media (max-width: 1024px) {
    .settings-sidebar {
        width: 260px;
    }
    .settings-brand {
        padding: 1.5rem 1rem 0.8rem 1rem;
    }
    .settings-site-name {
        font-size: 1.1rem;
    }
}

@media (max-width: 768px) {
    .settings-sidebar {
        width: 220px;
        border-radius: 0 12px 12px 0;
    }
    .settings-brand {
        padding: 1.2rem 0.7rem 0.7rem 0.7rem;
    }
    .settings-site-icon {
        width: 30px;
        height: 30px;
    }
    .settings-site-name {
        font-size: 1rem;
    }
    .settings-header {
        padding: 0.8rem 1rem;
    }
    .settings-content {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .settings-sidebar {
        width: 100vw;
        left: -100vw;
        border-radius: 0;
        max-width: 100vw;
    }
    .settings-overlay.active .settings-sidebar {
        left: 0;
    }
    .settings-brand {
        padding: 1rem 0.5rem 0.5rem 0.5rem;
        border-radius: 0;
    }
    .settings-site-icon {
        width: 26px;
        height: 26px;
    }
    .settings-site-name {
        font-size: 0.95rem;
    }
    .settings-header {
        padding: 0.6rem 0.7rem;
    }
    .settings-content {
        padding: 0.7rem;
    }
    .setting-label span {
        font-size: 0.95rem;
    }
}

/* Currency Selector */
.currency-selector {
    position: relative;
    min-width: 140px;
}

.currency-select {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border-radius: 8px;
    border: 1px solid #cbd5e1;
    background-color: white;
    font-size: 0.95rem;
    color: #1e293b;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px;
    transition: all 0.2s ease-in-out;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.currency-select:hover {
    border-color: #94a3b8;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.currency-select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
    transform: translateY(-1px);
}

.currency-select option {
    padding: 10px;
    font-size: 0.95rem;
}

/* Currency badge in option */
.currency-select option::before {
    content: attr(data-symbol);
    display: inline-block;
    margin-right: 8px;
    font-weight: bold;
}

/* Dark mode styles */
.dark-mode .currency-select {
    background-color: #1e293b;
    border-color: #475569;
    color: #f1f5f9;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

.dark-mode .currency-select:hover {
    border-color: #64748b;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.dark-mode .currency-select:focus {
    border-color: #60a5fa;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.3);
}

/* Currency change animation */
@keyframes currencyChanged {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.currency-changed {
    animation: currencyChanged 0.4s ease-out;
}

/* Search bar styling */
.search-bar {
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 8px 12px;
    font-size: 14px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: border-color 0.3s, box-shadow 0.3s;
}

.search-bar:focus {
    border-color: #007bff;
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.2);
    outline: none;
}

.search-bar::placeholder {
    color: #999;
}

/* Popup Form Styling */
.popup-form {
    padding: 20px;
    background-color: var(--bg-primary);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.popup-form h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.popup-form .form-group {
    margin-bottom: 1.5rem;
}

.popup-form label {
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: block;
}

.popup-form input,
.popup-form select,
.popup-form textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    transition: border-color 0.3s;
}

.popup-form input:focus,
.popup-form select:focus,
.popup-form textarea:focus {
    border-color: var(--accent-color);
    outline: none;
}

.popup-form button {
    background-color: var(--accent-color);
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
}

.popup-form button:hover {
    background-color: var(--accent-hover);
}

.popup-form .divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 1.5rem 0;
}

/* Payment Method Search Bar Styling */
.payment-method-search {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 10px 12px;
    font-size: 1rem;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: border-color 0.3s, box-shadow 0.3s;
    position: sticky;
    top: 0;
    z-index: 10;
}

.payment-method-search:focus {
    border-color: var(--accent-color);
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.2);
    outline: none;
}

.payment-method-search::placeholder {
    color: var(--text-secondary);
}

/* Brand Section in Settings Sidebar */
.settings-brand {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 2rem 1.5rem 1rem 1.5rem;
    background: linear-gradient(90deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    border-top-left-radius: 18px;
    border-top-right-radius: 18px;
    box-shadow: 0 4px 16px var(--shadow-color);
}

.settings-site-icon {
    font-size: 2.1rem;
    color: #fff;
    background: transparent;
    border-radius: 0;
    width: auto;
    height: auto;
    box-shadow: none;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.1rem;
}

.settings-site-name {
    font-size: 1.35rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.02em;
    text-shadow: 0 2px 8px rgba(0,0,0,0.10);
    line-height: 1.1;
}