/**
 * Theme System - Light & Dark Mode
 * Professional color scheme with smooth transitions
 * @version 2.0.0
 */

/* ============================================================================
   CSS VARIABLES - Light Theme (Default)
   ============================================================================ */

:root {
    /* Primary Colors */
    --primary: #007bff;
    --primary-dark: #0056b3;
    --primary-light: #4da3ff;
    --secondary: #6c757d;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;

    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --bg-elevated: #ffffff;
    --bg-overlay: rgba(0, 0, 0, 0.5);

    /* Text Colors */
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-tertiary: #adb5bd;
    --text-inverse: #ffffff;
    --text-muted: #868e96;

    /* Border Colors */
    --border-color: #dee2e6;
    --border-light: #e9ecef;
    --border-dark: #adb5bd;

    /* Card & Component Colors */
    --card-bg: #ffffff;
    --card-shadow: rgba(0, 0, 0, 0.08);
    --card-shadow-hover: rgba(0, 0, 0, 0.15);

    /* Input Colors */
    --input-bg: #ffffff;
    --input-border: #ced4da;
    --input-focus-border: var(--primary);
    --input-placeholder: #6c757d;

    /* Link Colors */
    --link-color: #007bff;
    --link-hover: #0056b3;

    /* Status Colors */
    --status-completed: #d4edda;
    --status-in-progress: #fff3cd;
    --status-overdue: #f8d7da;
    --status-pending: #d1ecf1;

    /* Sidebar & Navigation */
    --sidebar-bg: #343a40;
    --sidebar-text: #ffffff;
    --sidebar-hover: #495057;

    /* Topbar */
    --topbar-bg: #ffffff;
    --topbar-text: #212529;
    --topbar-border: #dee2e6;

    /* Button Shadows */
    --btn-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --btn-shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-speed: 0.3s;
    --transition-easing: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================================
   DARK THEME
   ============================================================================ */

[data-theme="dark"] {
    /* Primary Colors - Slightly muted for dark mode */
    --primary: #4da3ff;
    --primary-dark: #0056b3;
    --primary-light: #80bdff;
    --secondary: #6c757d;
    --success: #5cb85c;
    --danger: #d9534f;
    --warning: #f0ad4e;
    --info: #5bc0de;

    /* Background Colors */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3a3a3a;
    --bg-elevated: #2d2d2d;
    --bg-overlay: rgba(0, 0, 0, 0.8);

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-tertiary: #808080;
    --text-inverse: #1a1a1a;
    --text-muted: #6c757d;

    /* Border Colors */
    --border-color: #404040;
    --border-light: #4a4a4a;
    --border-dark: #2a2a2a;

    /* Card & Component Colors */
    --card-bg: #2d2d2d;
    --card-shadow: rgba(0, 0, 0, 0.3);
    --card-shadow-hover: rgba(0, 0, 0, 0.5);

    /* Input Colors */
    --input-bg: #3a3a3a;
    --input-border: #4a4a4a;
    --input-focus-border: var(--primary);
    --input-placeholder: #808080;

    /* Link Colors */
    --link-color: #4da3ff;
    --link-hover: #80bdff;

    /* Status Colors - Darker versions */
    --status-completed: #1e4620;
    --status-in-progress: #4a3f00;
    --status-overdue: #4a1f1f;
    --status-pending: #1a3a4a;

    /* Sidebar & Navigation */
    --sidebar-bg: #212529;
    --sidebar-text: #ffffff;
    --sidebar-hover: #343a40;

    /* Topbar */
    --topbar-bg: #2d2d2d;
    --topbar-text: #ffffff;
    --topbar-border: #404040;

    /* Button Shadows */
    --btn-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
    --btn-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.6);
}

/* ============================================================================
   AUTO THEME (System Preference)
   ============================================================================ */

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        /* Apply dark theme variables when system is dark and theme is auto */
        --primary: #4da3ff;
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --bg-tertiary: #3a3a3a;
        --text-primary: #ffffff;
        --text-secondary: #b0b0b0;
        --border-color: #404040;
        --card-bg: #2d2d2d;
        --input-bg: #3a3a3a;
        --topbar-bg: #2d2d2d;
        --topbar-text: #ffffff;
    }
}

/* ============================================================================
   THEME TRANSITIONS
   ============================================================================ */

* {
    transition: background-color var(--transition-speed) var(--transition-easing),
                color var(--transition-speed) var(--transition-easing),
                border-color var(--transition-speed) var(--transition-easing);
}

/* Disable transitions for elements that shouldn't animate */
*:focus,
*:active,
input,
textarea,
select {
    transition: none;
}

/* ============================================================================
   APPLY THEME TO ELEMENTS
   ============================================================================ */

body {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    box-shadow: 0 2px 8px var(--card-shadow);
}

.card:hover {
    box-shadow: 0 4px 16px var(--card-shadow-hover);
}

.card-header,
.card-footer {
    background-color: var(--bg-tertiary);
    border-color: var(--border-color);
}

/* Forms */
.form-control,
.custom-file-input,
.custom-select {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    color: var(--text-primary);
}

.form-control:focus {
    background-color: var(--input-bg);
    border-color: var(--input-focus-border);
    color: var(--text-primary);
}

.form-control::placeholder {
    color: var(--input-placeholder);
}

/* Buttons */
.btn {
    box-shadow: var(--btn-shadow);
}

.btn:hover {
    box-shadow: var(--btn-shadow-hover);
}

/* Tables */
.table {
    color: var(--text-primary);
}

.table thead th {
    border-color: var(--border-color);
    background-color: var(--bg-tertiary);
}

.table td,
.table th {
    border-color: var(--border-color);
}

/* Modals */
.modal-content {
    background-color: var(--card-bg);
    color: var(--text-primary);
}

.modal-header,
.modal-footer {
    border-color: var(--border-color);
}

/* Alerts */
.alert {
    border-color: var(--border-color);
}

/* Light Mode Alert Colors */
.alert-success {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.alert-warning {
    background-color: #fff3cd;
    border-color: #ffeaa7;
    color: #856404;
}

.alert-info {
    background-color: #d1ecf1;
    border-color: #bee5eb;
    color: #0c5460;
}

/* Dark Mode Alert Colors */
[data-theme="dark"] .alert-success {
    background-color: rgba(40, 167, 69, 0.2);
    border-color: rgba(40, 167, 69, 0.3);
    color: #90ee90;
}

[data-theme="dark"] .alert-danger {
    background-color: rgba(220, 53, 69, 0.2);
    border-color: rgba(220, 53, 69, 0.3);
    color: #ff6b6b;
}

[data-theme="dark"] .alert-warning {
    background-color: rgba(255, 193, 7, 0.2);
    border-color: rgba(255, 193, 7, 0.3);
    color: #ffd93d;
}

[data-theme="dark"] .alert-info {
    background-color: rgba(23, 162, 184, 0.2);
    border-color: rgba(23, 162, 184, 0.3);
    color: #6dd5ed;
}

/* Navbar & Topbar */
.navbar {
    background-color: var(--topbar-bg) !important;
    border-bottom: 1px solid var(--topbar-border);
}

.navbar-light .navbar-nav .nav-link {
    color: var(--topbar-text);
}

.navbar-light .navbar-brand {
    color: var(--topbar-text);
}

/* Sidebar */
.main-sidebar {
    background-color: var(--sidebar-bg) !important;
}

.sidebar-dark-primary .nav-sidebar > .nav-item > .nav-link {
    color: var(--sidebar-text);
}

.sidebar-dark-primary .nav-sidebar > .nav-item > .nav-link:hover {
    background-color: var(--sidebar-hover);
}

/* Content Wrapper */
.content-wrapper {
    background-color: var(--bg-secondary);
}

/* Links */
a {
    color: var(--link-color);
}

a:hover {
    color: var(--link-hover);
}

/* Borders */
.border,
.border-top,
.border-bottom,
.border-left,
.border-right {
    border-color: var(--border-color) !important;
}

/* Background utilities */
.bg-white {
    background-color: var(--bg-primary) !important;
}

.bg-light {
    background-color: var(--bg-secondary) !important;
}

/* Text utilities */
.text-dark {
    color: var(--text-primary) !important;
}

.text-muted {
    color: var(--text-secondary) !important;
}

/* ============================================================================
   STATUS COLORS (Slip cards)
   ============================================================================ */

.status-completed {
    background-color: var(--status-completed) !important;
    border-left: 4px solid var(--success);
}

.status-in-progress {
    background-color: var(--status-in-progress) !important;
    border-left: 4px solid var(--warning);
}

.status-overdue {
    background-color: var(--status-overdue) !important;
    border-left: 4px solid var(--danger);
}

.status-pending {
    background-color: var(--status-pending) !important;
    border-left: 4px solid var(--info);
}

/* ============================================================================
   THEME TOGGLE BUTTON
   ============================================================================ */

.theme-toggle {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-primary);
    margin-left: 10px;
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
    transform: rotate(180deg);
}

.theme-toggle i {
    font-size: 18px;
}

/* ============================================================================
   SMOOTH SCROLLBAR (Dark Mode)
   ============================================================================ */

[data-theme="dark"]::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

[data-theme="dark"]::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

[data-theme="dark"]::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 5px;
}

[data-theme="dark"]::-webkit-scrollbar-thumb:hover {
    background: #4a4a4a;
}

/* ============================================================================
   ACCESSIBILITY - Reduced Motion
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================================================
   PRINT STYLES
   ============================================================================ */

@media print {
    [data-theme="dark"] {
        --bg-primary: #ffffff;
        --bg-secondary: #ffffff;
        --text-primary: #000000;
        --text-secondary: #666666;
        --border-color: #cccccc;
    }
}

/* ============================================================================
   MULTI-LANGUAGE SUPPORT - Button Min-Widths
   Prevents buttons from jumping when language changes
   ============================================================================ */

/* Filter and Sort Buttons */
.filter-btn {
    min-width: 100px;
    text-align: center;
}

#filterDropdownBtn {
    min-width: 110px;
}

#sortDropdownBtn {
    min-width: 100px;
}

#binTypeDropdownBtn {
    min-width: 110px;
}

#optimizeRouteBtn,
#generateRouteBtn {
    min-width: 120px;
}

/* Action Buttons on Slip Detail Page */
.bottom-action-btn {
    min-width: 90px;
}

.action-button {
    min-width: 80px;
}

/* Navigation Menu Items */
.nav-link {
    min-width: 80px;
    text-align: center;
}

/* Language Dropdown */
#languageDropdown {
    min-width: 60px;
}