/* Base Styles for Spends Admin Project */
:root {
    --primary-color: #4a5568;
    --primary-dark: #2d3748;
    --secondary-color: #718096;
    --success-color: #38a169;
    --success-dark: #2f855a;
    --danger-color: #e53e3e;
    --warning-color: #d69e2e;
    --background: #f7fafc;
    --surface: #ffffff;
    --border: #e2e8f0;
    --border-strong: #cbd5e0;
    --border-light: #f1f5f9;
    --background-secondary: #f8fafc;
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --card-titles: #eaecee;
    --badge-bg: #e8eef5;
    --badge-text: #4a5568;
    --badge-dark-bg: #374151;
    --badge-dark-text: #f9fafb;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --accent: #ed8936;
    --accent-light: #f6ad55;
    --accent-glow: rgba(237, 137, 54, 0.15);
    --text-light: #a0aec0;
    --text-muted: #666666;
    --danger-light: #feb2b2;
    /* Scale multipliers */
    --font-scale: 0.8;
    --space-scale: 0.8;
    --header-height: calc(60px * var(--space-scale));
    --sidebar-width: calc(240px * var(--space-scale));
    --sidebar-collapsed-width: calc(56px * var(--space-scale));

    /* Spacing (4px grid × scale) */
    --spacing: 4px;
    --space-1: calc(var(--spacing) * 1 * var(--space-scale));
    --space-2: calc(var(--spacing) * 2 * var(--space-scale));
    --space-3: calc(var(--spacing) * 3 * var(--space-scale));
    --space-4: calc(var(--spacing) * 4 * var(--space-scale));
    --space-5: calc(var(--spacing) * 5 * var(--space-scale));
    --space-6: calc(var(--spacing) * 6 * var(--space-scale));
    --space-7: calc(var(--spacing) * 7 * var(--space-scale));
    --space-8: calc(var(--spacing) * 8 * var(--space-scale));
    --space-9: calc(var(--spacing) * 9 * var(--space-scale));
    --space-10: calc(var(--spacing) * 10 * var(--space-scale));
    --space-11: calc(var(--spacing) * 11 * var(--space-scale));
    --space-12: calc(var(--spacing) * 12 * var(--space-scale));
    --space-14: calc(var(--spacing) * 14 * var(--space-scale));
    --space-16: calc(var(--spacing) * 16 * var(--space-scale));

    /* Font sizes */
    --text-xs: calc(0.75rem * var(--font-scale));
    --text-sm: calc(0.875rem * var(--font-scale));
    --text-base: calc(1rem * var(--font-scale));
    --text-lg: calc(1.125rem * var(--font-scale));
    --text-xl: calc(1.25rem * var(--font-scale));
    --text-2xl: calc(1.5rem * var(--font-scale));
    --text-3xl: calc(1.75rem * var(--font-scale));

    /* Icon sizes */
    --icon-sm: calc(16px * var(--font-scale));
    --icon-md: calc(20px * var(--font-scale));
    --icon-lg: calc(24px * var(--font-scale));
    --icon-xl: calc(28px * var(--font-scale));

    /* Border widths */
    --border-1: calc(1px * var(--space-scale));
    --border-2: calc(2px * var(--space-scale));
    --border-4: calc(4px * var(--space-scale));

    /* Border radius */
    --radius-xs: calc(4px * var(--space-scale));
    --radius-sm: calc(8px * var(--space-scale));
    --radius-md: calc(12px * var(--space-scale));
    --radius-lg: calc(16px * var(--space-scale));
    --radius-full: 9999px;

    /* Focus ring */
    --shadow-focus: 0 0 0 3px rgba(74, 85, 104, 0.1);

    /* White overlays */
    --white-10: rgba(255, 255, 255, 0.1);
    --white-15: rgba(255, 255, 255, 0.15);
    --white-20: rgba(255, 255, 255, 0.2);
    --white-30: rgba(255, 255, 255, 0.3);
    --white-50: rgba(255, 255, 255, 0.5);
    --white-90: rgba(255, 255, 255, 0.9);

    /* Black overlays */
    --black-4: rgba(0, 0, 0, 0.04);
    --black-8: rgba(0, 0, 0, 0.08);
    --black-10: rgba(0, 0, 0, 0.1);
    --black-15: rgba(0, 0, 0, 0.15);
    --black-30: rgba(0, 0, 0, 0.3);
    --black-50: rgba(0, 0, 0, 0.5);
    --black-70: rgba(0, 0, 0, 0.7);
    --black-90: rgba(0, 0, 0, 0.9);

    /* Primary overlays */
    --primary-alpha-2: rgba(74, 85, 104, 0.02);
    --primary-alpha-3: rgba(74, 85, 104, 0.03);
    --primary-alpha-4: rgba(74, 85, 104, 0.04);
    --primary-alpha-6: rgba(74, 85, 104, 0.06);
    --primary-alpha-8: rgba(74, 85, 104, 0.08);
    --primary-alpha-10: rgba(74, 85, 104, 0.1);

    /* Danger backgrounds (rgba overlays) */
    --danger-bg-subtle: rgba(229, 62, 62, 0.04);
    --danger-bg-light: rgba(229, 62, 62, 0.05);
    --danger-bg-medium: rgba(229, 62, 62, 0.08);
    --danger-bg: rgba(229, 62, 62, 0.1);
    --danger-bg-strong: rgba(229, 62, 62, 0.2);
    --danger-border-light: rgba(229, 62, 62, 0.25);
    --danger-border: rgba(229, 62, 62, 0.3);

    /* Alert: success */
    --alert-success-bg: #dcfce7;
    --alert-success-bg-light: #f0fdf4;
    --alert-success-text: #166534;
    --alert-success-icon: #16a34a;
    --alert-success-border: #86efac;
    --confirm-success: #059669;

    /* Alert: error */
    --alert-error-bg: #fee2e2;
    --alert-error-bg-light: #fef2f2;
    --alert-error-text: #991b1b;
    --alert-error-icon: #dc2626;
    --alert-error-border: #fca5a5;

    /* Alert: warning */
    --alert-warning-bg: #fef3c7;
    --alert-warning-bg-light: #fffbeb;
    --alert-warning-text: #92400e;
    --alert-warning-text-alt: #854d0e;
    --alert-warning-icon: #d97706;
    --alert-warning-border: #fcd34d;

    /* Alert: info */
    --alert-info-bg: #dbeafe;
    --alert-info-bg-light: #eff6ff;
    --alert-info-icon: #3b82f6;
    --alert-info-border: #93c5fd;

    /* Semantic colors */
    --info-color: #1e40af;

    /* Transitions */
    --transition-fast: 0.15s;
    --transition-normal: 0.2s;
    --transition-slow: 0.3s;
    --easing: cubic-bezier(0.4, 0, 0.2, 1);

    --sidebar-accent-start: #4CAF50;
    --sidebar-accent-end: #2196F3;
    
    /* Scrollbar */
    --scrollbar-track: #f5f5f5;
    --scrollbar-thumb: #ccc;
    --scrollbar-thumb-hover: #999;

    /* Tooltip */
    --tooltip-bg: #333;
    --tooltip-text: #fff;

    /* Additional text colors */
    --text-dark: #1a1a1a;
    --text-muted: #666;

    /* Hover highlight */
    --hover-highlight: #f0f7ff;

    /* Z-index scale */
    --z-dropdown: 1000;
    --z-header: 1010;
    --z-header-mobile: 9000;
    --z-messages: 10000;
    --z-modal: 10500;
    --z-alert: 11000;

    /* Breakpoints (reference, used in @media directly):
       sm: 576px, md: 768px, lg: 1024px, xl: 1200px */
}

/* Utility classes */
.d-none { display: none !important; }
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Global scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: var(--text-base);
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    background: var(--primary-color);
    color: white;
    padding: var(--space-4) 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: var(--z-header);
}

@media (max-width: 768px) {
    .app-header {
        z-index: var(--z-header-mobile);
    }
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-8);
}

.app-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: white;
    white-space: nowrap;
    cursor: pointer;
}

.header-actions {
    display: flex;
    gap: var(--space-4);
    align-items: center;
}

.admin-link {
    color: white;
    text-decoration: none;
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    font-weight: 500;
    font-size: var(--text-base);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    line-height: 1;
}

.admin-link svg {
    width: var(--icon-sm);
    height: var(--icon-sm);
    stroke-width: 2;
    flex-shrink: 0;
}

.admin-link:hover {
    background: var(--white-10);
}

.logout-form {
    margin: 0;
    padding: 0;
    display: inline-block;
}

/* Main Content */
.main-content {
    flex: 1;
}

/* ============================================
   GLOBAL ALERT CONTAINER - Централизованная система алертов
   ============================================ */
#global-alert-container {
    position: fixed;
    top: 72px;
    inset-inline-end: 20px;
    z-index: var(--z-alert);
    max-width: 400px;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

[dir="rtl"] #global-alert-container {
    inset-inline-end: auto;
    inset-inline-start: 20px;
}

#global-alert-container .alert {
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-weight: 500;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.25);
    opacity: 0;
    transform: translateX(100%);
    animation: alertSlideIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    pointer-events: auto;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    color: #111827;
    background: var(--white-90);
    border: 1px solid rgba(209, 213, 219, 0.8);
    backdrop-filter: blur(12px);
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
    cursor: pointer;
    user-select: none;
    line-height: 1.4;
    outline: none;
}

[dir="rtl"] #global-alert-container .alert {
    transform: translateX(-100%);
    animation: alertSlideInRTL 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

#global-alert-container .alert:hover,
#global-alert-container .alert:focus {
    box-shadow: 0 25px 50px rgba(15, 23, 42, 0.35);
    transform: translateX(-2px);
    outline: none;
}

[dir="rtl"] #global-alert-container .alert:hover,
[dir="rtl"] #global-alert-container .alert:focus {
    transform: translateX(2px);
    outline: none;
}

#global-alert-container .alert-message {
    flex: 1;
    word-wrap: break-word;
}


#global-alert-container .alert-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-xs);
    transition: background-color 0.2s, opacity 0.2s;
    flex-shrink: 0;
    opacity: 0.6;
    color: currentColor;
    outline: none;
}

#global-alert-container .alert-close:hover,
#global-alert-container .alert-close:focus {
    background-color: var(--black-10);
    opacity: 1;
    outline: none;
}

#global-alert-container .alert-close svg {
    width: var(--icon-sm);
    height: var(--icon-sm);
    stroke: currentColor;
    stroke-width: 2;
}

/* Анимации появления */
@keyframes alertSlideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes alertSlideInRTL {
    from {
        opacity: 0;
        transform: translateX(-100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes alertSlideOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

@keyframes alertSlideOutRTL {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(-100%);
    }
}

/* Типы алертов */
#global-alert-container .alert-success {
    background: linear-gradient(135deg, rgba(220, 252, 231, 0.98) 0%, rgba(187, 247, 208, 0.95) 100%);
    color: var(--alert-success-text);
    border: 1px solid rgba(187, 247, 208, 0.85);
    box-shadow: 0 20px 40px rgba(22, 163, 74, 0.15);
}

#global-alert-container .alert-success .alert-icon {
    color: var(--alert-success-icon);
}

#global-alert-container .alert-error {
    background: linear-gradient(135deg, rgba(254, 242, 242, 0.98) 0%, rgba(254, 202, 202, 0.95) 100%);
    color: var(--alert-error-text);
    border: 1px solid rgba(254, 202, 202, 0.85);
    box-shadow: 0 18px 45px rgba(185, 28, 28, 0.28);
}

#global-alert-container .alert-error .alert-icon {
    color: var(--alert-error-icon);
}

#global-alert-container .alert-warning {
    background: linear-gradient(135deg, rgba(254, 243, 199, 0.98) 0%, rgba(251, 191, 36, 0.95) 100%);
    color: var(--alert-warning-text);
    border: 1px solid rgba(251, 191, 36, 0.85);
    box-shadow: 0 18px 45px rgba(217, 119, 6, 0.28);
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.6);
}

#global-alert-container .alert-warning .alert-icon {
    color: var(--alert-warning-icon);
}

#global-alert-container .alert-info {
    background: linear-gradient(135deg, rgba(239, 246, 255, 0.98) 0%, rgba(219, 234, 254, 0.95) 100%);
    color: var(--info-color);
    border: 1px solid rgba(147, 197, 253, 0.85);
    box-shadow: 0 18px 45px rgba(59, 130, 246, 0.2);
}

#global-alert-container .alert-info .alert-icon {
    color: var(--alert-info-icon);
}

/* Адаптивность */
@media (max-width: 576px) {
    #global-alert-container {
        top: 72px;
        inset-inline-end: 12px;
        inset-inline-start: 12px;
        max-width: none;
    }

    [dir="rtl"] #global-alert-container {
        inset-inline-end: 12px;
        inset-inline-start: 12px;
    }

    #global-alert-container .alert {
        padding: var(--space-4) var(--space-4);
        font-size: var(--text-sm);
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
        position: relative;
    }

    .admin-link {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: var(--space-3) var(--space-5);
        border-radius: var(--radius-sm);
        font-size: var(--text-base);
        font-weight: 500;
        color: white;
        text-decoration: none;
        transition: all 0.2s;
        gap: var(--space-2);
    }

    .admin-link svg {
        width: var(--icon-sm);
        height: var(--icon-sm);
        stroke-width: 2;
        flex-shrink: 0;
    }

    .admin-link:hover {
        background: var(--white-10);
    }

    .logout-form {
        width: 100%;
        margin: 0;
        padding: 0;
    }

    .app-title {
        order: 1;
    }

    .language-switcher {
        display: none;
        order: 998;
    }

    .language-switcher .custom-select-wrapper {
        width: 100%;
    }

    .language-switcher .custom-select-trigger {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================
   LANGUAGE SWITCHER - CUSTOM SELECT
   ============================================ */
.language-switcher {
    display: flex;
    align-items: center;
}

.custom-select-wrapper {
    position: relative;
    min-width: 160px;
}

.custom-select {
    position: relative;
    user-select: none;
}

.custom-select-trigger {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-10) var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    border: 1px solid var(--white-20);
    background: var(--white-10);
    color: white;
    cursor: pointer;
    font-size: var(--text-sm);
    transition: all 0.2s;
}

.custom-select-trigger:hover {
    background: var(--white-15);
}

.custom-select.open .custom-select-trigger {
    background: var(--white-15);
    border-color: var(--white-50);
}

.custom-select-trigger .fi {
    width: 1.5em;
    height: 1.125em;
    border-radius: 2px;
    box-shadow: 0 1px 3px var(--black-30);
    flex-shrink: 0;
}

.custom-select-text {
    flex: 1;
    white-space: nowrap;
}

.custom-select-arrow {
    position: absolute;
    right: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    transition: transform 0.2s;
    pointer-events: none;
}

.custom-select.open .custom-select-arrow {
    transform: translateY(-50%) rotate(180deg);
}

.custom-select-options {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: #1a1a2e;
    border: 1px solid var(--white-20);
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 12px var(--black-30);
    overflow: hidden;
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s;
}

.custom-select.open .custom-select-options {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.custom-select-option {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-3);
    color: white;
    cursor: pointer;
    transition: background 0.15s;
}

.custom-select-option:hover {
    background: var(--white-10);
}

.custom-select-option.selected {
    background: var(--white-15);
}

.custom-select-option .fi {
    width: 1.5em;
    height: 1.125em;
    border-radius: 2px;
    box-shadow: 0 1px 3px var(--black-30);
    flex-shrink: 0;
}

/* ============================================
   UNIFIED MESSAGES SYSTEM (Django Messages - Fallback)
   ============================================ */

.unified-messages-container {
    position: fixed;
    top: 80px;
    inset-inline-end: 20px;
    z-index: var(--z-messages);
    width: 90%;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    pointer-events: none;
}

/* Animation */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

[dir="rtl"] .unified-messages-container .alert {
    animation: slideInLeft 0.3s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.alert.fade-out {
    animation: slideOutRight 0.3s ease-out forwards;
}

[dir="rtl"] .alert.fade-out {
    animation: slideOutLeft 0.3s ease-out forwards;
}

@keyframes slideOutRight {
    from {
        opacity: 1;
        transform: translateX(0);
        max-height: 200px;
        margin-bottom: 12px;
    }
    to {
        opacity: 0;
        transform: translateX(100%);
        max-height: 0;
        margin-bottom: 0;
        padding-top: 0;
        padding-bottom: 0;
    }
}

@keyframes slideOutLeft {
    from {
        opacity: 1;
        transform: translateX(0);
        max-height: 200px;
        margin-bottom: 12px;
    }
    to {
        opacity: 0;
        transform: translateX(-100%);
        max-height: 0;
        margin-bottom: 0;
        padding-top: 0;
        padding-bottom: 0;
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .unified-messages-container {
        top: 70px;
        right: 10px;
        width: calc(100% - 20px);
        max-width: none;
    }
    
    [dir="rtl"] .unified-messages-container {
        right: auto;
        left: 10px;
    }

    .unified-messages-container .alert {
        padding: var(--space-3) var(--space-3);
        font-size: var(--text-sm);
    }
}

/* Choices.js RTL: arrow on left side */
[dir="rtl"] .choices[data-type*="select-one"]::after {
    right: auto;
    left: 11.5px;
}
[dir="rtl"] .choices[data-type*="select-one"] .choices__inner {
    padding-right: calc(7.5px * var(--space-scale));
    padding-left: calc(31.5px * var(--space-scale));
}

/* Entity detail link next to select labels */
.entity-detail-link {
    display: inline-flex;
    align-items: center;
    margin-inline-start: var(--space-2);
    color: var(--text-secondary);
    opacity: 0.7;
    transition: opacity 0.15s, color 0.15s;
    vertical-align: middle;
}
.entity-detail-link:hover {
    opacity: 1;
    color: var(--accent);
}