/**
 * Settings Panel Styles
 * استایل‌های پنل تنظیمات کاربری
 * UTF-8 encoded
 */

/* Settings Toggle Button */
.settings-toggle {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 56px;
    height: 56px;
    background: var(--md-primary);
    color: var(--md-on-primary);
    border: none;
    border-radius: 50%;
    box-shadow: var(--md-elevation-3);
    cursor: pointer;
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    animation: pulse 2s infinite;
}

.settings-toggle:hover {
    transform: scale(1.1) rotate(90deg);
    box-shadow: var(--md-elevation-4);
}

@keyframes pulse {
    0%, 100% { box-shadow: var(--md-elevation-3); }
    50% { box-shadow: 0 0 0 10px rgba(33, 150, 243, 0.1); }
}

/* Settings Panel */
.settings-panel {
    position: fixed;
    top: 0;
    left: -400px;
    width: 380px;
    height: 100vh;
    background: var(--md-surface);
    box-shadow: var(--md-elevation-5);
    z-index: 9999;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    direction: rtl;
}

.settings-panel.active {
    left: 0;
}

.settings-panel::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.settings-panel.active::before {
    opacity: 1;
    pointer-events: auto;
}

.settings-header {
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-primary-dark) 100%);
    color: var(--md-on-primary);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.settings-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.settings-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--md-on-primary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.settings-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.settings-content {
    padding: 1.5rem;
}

.settings-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--md-outline-variant);
}

.settings-section:last-child {
    border-bottom: none;
}

.settings-section h4 {
    margin: 0 0 1rem 0;
    color: var(--md-on-surface);
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Color Scheme Options */
.color-scheme-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.color-scheme-btn {
    padding: 1rem;
    border: 2px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--md-surface-variant);
    color: var(--md-on-surface);
    font-weight: 500;
    position: relative;
    overflow: hidden;
    min-height: 51px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Dark overlay for better text readability */
.color-scheme-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.5) 100%);
    z-index: 0;
    border-radius: 12px;
    transition: opacity 0.3s ease;
}

.color-scheme-btn:hover::before {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.4) 100%);
}

.color-scheme-btn.active::before {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.6) 100%);
}

.color-scheme-btn span {
    position: relative;
    z-index: 1;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8), 0 1px 2px rgba(0, 0, 0, 0.6);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

.color-scheme-btn.active {
    border-color: var(--md-primary);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.2);
    transform: scale(1.05);
}

.color-scheme-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--md-elevation-2);
}

/* Custom Colors */
.custom-colors {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.color-picker-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
    min-width: 100px;
}

.color-picker-group label {
    font-size: 0.875rem;
    color: var(--md-on-surface-variant);
    font-weight: 500;
}

.color-picker-group input[type="color"] {
    width: 100%;
    height: 48px;
    border: 2px solid var(--md-outline-variant);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.color-picker-group input[type="color"]:hover {
    border-color: var(--md-primary);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

/* Font Size Options */
.font-size-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.font-size-btn {
    padding: 1rem;
    border: 2px solid var(--md-outline-variant);
    border-radius: 12px;
    background: var(--md-surface);
    color: var(--md-on-surface);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
}

.font-size-btn.active {
    background: var(--md-primary);
    color: var(--md-on-primary);
    border-color: var(--md-primary);
    box-shadow: var(--md-elevation-1);
}

.font-size-btn:hover {
    border-color: var(--md-primary);
    transform: translateY(-2px);
    box-shadow: var(--md-elevation-2);
}

/* Font Family Options */
.font-family-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.font-family-btn {
    padding: 1rem;
    border: 2px solid var(--md-outline-variant);
    border-radius: 12px;
    background: var(--md-surface);
    color: var(--md-on-surface);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
    text-align: center;
}

.font-family-btn.active {
    background: var(--md-primary);
    color: var(--md-on-primary);
    border-color: var(--md-primary);
    box-shadow: var(--md-elevation-1);
}

.font-family-btn:hover {
    border-color: var(--md-primary);
    transform: translateY(-2px);
    box-shadow: var(--md-elevation-2);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.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(--md-outline-variant);
    transition: 0.4s;
    border-radius: 34px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
    box-shadow: var(--md-elevation-1);
}

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

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(26px);
}

/* Settings Actions */
.settings-actions {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--md-outline-variant);
}

.settings-actions .btn {
    width: 100%;
    justify-content: center;
}

/* Dark Mode Styles */
body.dark-mode {
    --md-surface: #1C1B1F;
    --md-on-surface: #E6E1E5;
    --md-surface-variant: #49454F;
    --md-on-surface-variant: #CAC4D0;
    --md-background: #121212;
    --md-on-background: #E6E1E5;
    --md-outline: #938F99;
    --md-outline-variant: #49454F;
}

body.dark-mode .settings-panel {
    background: var(--md-surface);
    border-left: 1px solid var(--md-outline-variant);
}

body.dark-mode .color-scheme-btn:not(.active) {
    background: var(--md-surface-variant);
    color: var(--md-on-surface-variant);
}

body.dark-mode .font-size-btn:not(.active) {
    background: var(--md-surface-variant);
    color: var(--md-on-surface-variant);
    border-color: var(--md-outline-variant);
}

/* Responsive */
@media (max-width: 768px) {
    .settings-panel {
        width: 100%;
        left: -100%;
    }
    
    .settings-toggle {
        bottom: 1rem;
        left: 1rem;
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }
    
    .color-scheme-options,
    .font-size-options {
        grid-template-columns: 1fr;
    }
}