/**
 * Velutan Battle Tracker - Sidebar Styles
 *
 * This file contains all sidebar-related styles including:
 * - Sidebar layout and positioning
 * - Sidebar toggle button
 * - Form inputs and sections
 * - Character list
 * - File upload components
 */

/* ==================== Sidebar Container ==================== */
/**
 * Fixed sidebar on the left side of the screen
 * Can be hidden/shown with toggle button
 * Uses transform for smooth slide animation
 */
.sidebar {
    width: 320px;
    background: rgba(20, 20, 30, 0.95);
    padding: 20px;
    overflow-y: auto;
    border-right: 2px solid #444;
    box-shadow: 4px 0 10px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 100;
}

.sidebar.hidden {
    transform: translateX(-100%);
}

/* ==================== Sidebar Toggle Button ==================== */
/**
 * Hamburger menu button to show/hide sidebar
 * Position adjusts based on sidebar visibility
 */
.sidebar-toggle {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(99, 102, 241, 0.9);
    border: 2px solid rgba(99, 102, 241, 1);
    border-left: none;
    border-radius: 0 8px 8px 0;
    color: white;
    padding: 12px 10px;
    cursor: pointer;
    z-index: 2000;
    font-size: 24px;
    font-weight: bold;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-toggle:hover {
    background: rgba(99, 102, 241, 1);
    padding-right: 14px;
}

.sidebar-toggle.sidebar-visible {
    left: 320px;
}

/* ==================== Sidebar Sections ==================== */
/**
 * Grouped sections within sidebar (e.g., Add Character, Background, etc.)
 */
.section {
    margin-bottom: 25px;
    background: rgba(255, 255, 255, 0.05);
    padding: 15px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.section-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #a78bfa;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ==================== Form Inputs ==================== */
/**
 * Input groups for forms (label + input field)
 */
.input-group {
    margin-bottom: 12px;
}

.input-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: #bbb;
    font-weight: 500;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.3);
    color: white;
    font-size: 14px;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* ==================== Buttons ==================== */
/**
 * Button styles for actions in sidebar
 */
.btn {
    padding: 10px 18px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
    width: 100%;
    margin-bottom: 8px;
    font-size: 14px;
    display: block;
    box-sizing: border-box;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
}

/* ==================== File Upload ==================== */
/**
 * Custom styled file upload inputs
 */
.file-input-wrapper {
    position: relative;
    overflow: hidden;
    display: block;
    width: 100%;
}

.file-input-wrapper input[type=file] {
    position: absolute;
    left: -9999px;
}

.file-input-label {
    display: block;
    padding: 10px;
    background: rgba(99, 102, 241, 0.2);
    border: 2px dashed rgba(99, 102, 241, 0.5);
    border-radius: 6px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.file-input-label:hover {
    background: rgba(99, 102, 241, 0.3);
    border-color: #6366f1;
}

/* ==================== Character List ==================== */
/**
 * List of all characters in the battle
 */
.character-list {
    max-height: 200px;
    overflow-y: auto;
}

.character-item {
    background: rgba(255, 255, 255, 0.08);
    padding: 8px 12px;
    border-radius: 6px;
    margin-bottom: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
}

/* ==================== Notes Area ==================== */
/**
 * Textarea for battle notes in sidebar
 */
.notes-area {
    width: 100%;
    min-height: 100px;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.3);
    color: white;
    font-family: inherit;
    font-size: 13px;
    resize: vertical;
}