/**
 * Operations Calendar Styles
 * Academy Phase 1 - Batch 1.5: Календари для Operations Manager
 * 
 * Стили следуют стандартам design_standart.md
 */

/* ========== Container ========== */
.operations-calendar-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
    background: var(--background);
    color: var(--text-primary);
    font-family: var(--font-family);
}

/* ========== Header ========== */
.operations-calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: clamp(var(--spacing-md), 3vw, var(--spacing-xl));
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.page-title {
    font-size: clamp(1.25rem, 4vw, 1.75rem);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.page-title i {
    color: var(--accent);
    font-size: 1.2em;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ========== Toolbar ========== */
.calendar-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.calendar-month-year {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 600;
    margin: 0;
    min-width: 200px;
    text-align: center;
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.view-mode-selector {
    display: flex;
    gap: var(--spacing-xs);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 2px;
    background: var(--surface);
}

.view-mode-selector .btn {
    margin: 0;
    border: none;
    background: transparent;
    min-height: 32px;
}

.view-mode-selector .btn.active {
    background: var(--accent);
    color: var(--text-inverse);
}

/* ========== Month View ========== */
.calendar-month-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.calendar-weekday {
    padding: var(--spacing-sm);
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-right: 1px solid var(--border);
}

.calendar-weekday:last-child {
    border-right: none;
}

.calendar-weeks {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.calendar-week {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    flex: 1;
    min-height: 120px;
    border-bottom: 1px solid var(--border);
}

.calendar-day {
    border-right: 1px solid var(--border);
    padding: var(--spacing-xs);
    display: flex;
    flex-direction: column;
    cursor: pointer;
    transition: all var(--transition);
    background: var(--surface);
    position: relative;
}

.calendar-day:last-child {
    border-right: none;
}

.calendar-day:hover {
    background: var(--surface-hover);
}

.calendar-day.other-month {
    background: var(--surface-alt);
    opacity: 0.5;
}

.calendar-day.today {
    background: var(--accent-alpha);
    border: 2px solid var(--accent);
}

.calendar-day.today .day-number {
    font-weight: 700;
    color: var(--accent);
}

.day-number {
    font-size: clamp(0.875rem, 2vw, 1rem);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.day-events {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    overflow: hidden;
}

.day-event {
    font-size: 0.7rem;
    padding: 2px 4px;
    border-radius: 2px;
    color: white;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
    transition: all var(--transition);
}

.day-event:hover {
    transform: translateX(2px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.day-event-more {
    font-size: 0.7rem;
    padding: 2px 4px;
    color: var(--text-secondary);
    font-style: italic;
}

/* ========== Week View ========== */
.calendar-week-view {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.week-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    flex: 1;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
}

.week-day {
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: var(--surface);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.week-day.today {
    border-color: var(--accent);
    background: var(--accent-alpha);
}

.week-day-header {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.week-day-name {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 2px;
}

.week-day-number {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.week-day-events {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-xs);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.week-event {
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    color: white;
    cursor: pointer;
    transition: all var(--transition);
    font-size: 0.75rem;
}

.week-event:hover {
    transform: translateX(4px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.event-time {
    font-weight: 600;
    margin-bottom: 2px;
}

.event-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ========== Day View ========== */
.calendar-day-view {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.day-view-header {
    margin-bottom: var(--spacing-lg);
}

.day-view-header h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}

.day-view-events {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.day-view-event {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    transition: all var(--transition);
}

.day-view-event:hover {
    box-shadow: 0 4px 12px var(--shadow);
    transform: translateY(-2px);
}

.event-time-range {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 100px;
}

.event-content {
    flex: 1;
}

.event-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.event-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.event-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.event-type,
.event-resource {
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 12px;
    background: var(--surface-alt);
    color: var(--text-secondary);
}

.event-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* ========== Event Editor ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999 !important;
    animation: fadeIn 0.2s ease-out;
}

.modal-overlay.hidden {
    display: none;
}

.modal-content {
    background: var(--surface);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 8px 32px var(--shadow-lg);
    width: min(90vw, 600px);
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease-out;
    position: relative;
    z-index: 100000 !important;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border);
}

.event-editor-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-sm);
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: var(--font-family);
    transition: all var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--input-focus-shadow);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: var(--surface);
    color: var(--text-primary);
    font-size: clamp(0.75rem, 1.5vw, 0.875rem);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    touch-action: manipulation;
    min-height: 44px;
    will-change: transform, box-shadow;
}

.btn:hover {
    background: var(--surface-hover);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px var(--shadow);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    color: var(--text-inverse);
    border-color: var(--accent);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent-active) 100%);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text-primary);
    border-color: var(--border);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    min-height: 32px;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition);
    touch-action: manipulation;
    min-width: 44px;
    min-height: 44px;
}

.btn-icon:hover {
    background: var(--surface-hover);
    color: var(--accent);
}

.btn-icon:active {
    transform: scale(0.95);
}

@media (min-width: 768px) {
    .btn {
        min-height: 36px;
    }
    
    .btn-icon {
        min-width: 32px;
        min-height: 32px;
    }
}

/* ========== Empty States ========== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    min-height: 300px;
}

.empty-state-icon {
    font-size: 4rem;
    color: var(--text-disabled);
    opacity: 0.5;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.empty-state p {
    color: var(--text-secondary);
    margin: 0;
}

/* ========== Skeleton Screens ========== */
.skeleton-container {
    padding: var(--spacing-lg);
}

.skeleton {
    background: linear-gradient(
        90deg,
        var(--surface) 0%,
        var(--surface-hover) 50%,
        var(--surface) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: 4px;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-text {
    height: 1em;
    margin-bottom: 0.5em;
}

.skeleton-text:last-child {
    width: 60%;
}

/* ========== Animations ========== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== Mobile Optimizations ========== */
@media (max-width: 480px) {
    .operations-calendar-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .header-actions {
        width: 100%;
        justify-content: stretch;
    }
    
    .header-actions .btn {
        flex: 1;
    }
    
    .calendar-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .toolbar-left {
        justify-content: center;
    }
    
    .toolbar-right {
        justify-content: center;
    }
    
    .calendar-weekday,
    .calendar-day {
        font-size: 0.75rem;
    }
    
    .day-event {
        font-size: 0.6rem;
    }
}

/* ========== Calendar Layout ========== */
.calendar-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

.calendar-main {
    flex: 1;
    overflow-y: auto;
    transition: margin-right 0.3s ease;
}

.calendar-main.with-sidebar {
    margin-right: 400px;
}

/* ========== Sidebar Styles ========== */
.event-editor-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(400px, 90vw);
    background: var(--surface);
    border-left: 1px solid var(--border);
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    animation: slideInRight 0.3s ease-out;
    overflow-y: auto;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: clamp(var(--spacing-md), 3vw, var(--spacing-lg));
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    position: sticky;
    top: 0;
    z-index: 10;
}

.sidebar-header h3 {
    margin: 0;
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-body {
    flex: 1;
    padding: clamp(var(--spacing-md), 3vw, var(--spacing-lg));
    overflow-y: auto;
}

.sidebar-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: clamp(var(--spacing-md), 3vw, var(--spacing-lg));
    border-top: 1px solid var(--border);
    background: var(--surface);
    position: sticky;
    bottom: 0;
}

/* ========== Mobile Optimizations ========== */
@media (max-width: 768px) {
    /* Компактный header */
    .operations-calendar-header {
        padding: var(--mobile-spacing-md);
        flex-wrap: wrap;
        gap: var(--mobile-spacing-sm);
    }

    .header-actions .btn {
        min-height: var(--touch-target-min);
        padding: var(--mobile-spacing-sm) var(--mobile-spacing-md);
        font-size: var(--mobile-font-size-sm);
    }

    .header-actions .btn .btn-text {
        display: none;
    }

    /* Адаптивная панель инструментов */
    .calendar-toolbar {
        padding: var(--mobile-spacing-md);
        flex-direction: column;
        align-items: stretch;
        gap: var(--mobile-spacing-sm);
    }

    .toolbar-left {
        justify-content: space-between;
        width: 100%;
    }

    .toolbar-left .btn-icon {
        min-width: var(--touch-target-min);
        min-height: var(--touch-target-min);
    }

    .calendar-month-year {
        font-size: var(--mobile-font-size-base);
        min-width: auto;
        flex: 1;
    }

    .toolbar-left .btn-secondary {
        min-height: var(--touch-target-min);
        padding: var(--mobile-spacing-sm) var(--mobile-spacing-md);
        font-size: var(--mobile-font-size-sm);
    }

    .toolbar-right {
        width: 100%;
        justify-content: center;
    }

    .view-mode-selector {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
    }

    .view-mode-selector .btn {
        min-height: var(--touch-target-min);
        font-size: var(--mobile-font-size-sm);
    }

    /* Адаптивный календарь */
    .calendar-weekday {
        padding: var(--mobile-spacing-xs);
        font-size: var(--mobile-font-size-xs);
    }

    .calendar-day {
        padding: var(--mobile-spacing-xs);
        min-height: 60px;
        font-size: var(--mobile-font-size-xs);
    }

    .day-number {
        font-size: var(--mobile-font-size-sm);
        margin-bottom: var(--mobile-spacing-xs);
    }

    .day-event {
        font-size: var(--mobile-font-size-xs);
        padding: 2px 4px;
        margin-bottom: 2px;
        line-height: 1.2;
    }

    .day-event-more {
        font-size: var(--mobile-font-size-xs);
        padding: 2px;
    }

    /* Calendar Layout */
    .calendar-layout {
        flex-direction: column;
    }

    .calendar-main.with-sidebar {
        margin-right: 0;
    }

    /* Sidebar становится bottom sheet на мобильных */
    .calendar-main.with-sidebar {
        margin-right: 0;
        margin-bottom: 0;
    }
    
    .event-editor-sidebar {
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        max-height: 85vh;
        border-left: none;
        border-top: 1px solid var(--border);
        border-radius: 20px 20px 0 0;
        animation: slideInUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        padding-bottom: calc(var(--mobile-spacing-lg) + env(safe-area-inset-bottom));
        box-shadow: 0 -4px 12px var(--shadow-lg);
    }

    .event-editor-sidebar .sidebar-header {
        padding: var(--mobile-spacing-md);
        border-bottom: 1px solid var(--border);
    }

    .event-editor-sidebar .sidebar-header h3 {
        font-size: var(--mobile-font-size-lg);
    }

    .event-editor-sidebar .sidebar-header .btn-icon {
        min-width: var(--touch-target-min);
        min-height: var(--touch-target-min);
    }

    .event-editor-sidebar .sidebar-body {
        padding: var(--mobile-spacing-md);
        overflow-y: auto;
        max-height: calc(85vh - 120px);
    }

    .event-editor-form {
        gap: var(--mobile-spacing-md);
    }

    .event-editor-form .form-group {
        gap: var(--mobile-spacing-sm);
    }

    .event-editor-form .form-group label {
        font-size: var(--mobile-font-size-sm);
    }

    .event-editor-form .form-control {
        padding: var(--mobile-spacing-md);
        font-size: var(--mobile-font-size-base);
        min-height: var(--touch-target-min);
    }

    .event-editor-form .form-row {
        flex-direction: column;
        gap: var(--mobile-spacing-md);
    }

    .event-editor-form .form-row .form-group {
        width: 100%;
    }

    .event-editor-sidebar .modal-footer {
        padding: var(--mobile-spacing-md);
        gap: var(--mobile-spacing-sm);
        border-top: 1px solid var(--border);
    }

    .event-editor-sidebar .modal-footer .btn {
        flex: 1;
        min-height: var(--touch-target-min);
        padding: var(--mobile-spacing-md);
        font-size: var(--mobile-font-size-base);
    }

    /* Overlay для bottom sheet */
    .calendar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(4px);
        z-index: 999;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s ease;
    }

    .calendar-overlay.active {
        opacity: 1;
        pointer-events: all;
    }
    
    @keyframes slideInUp {
        from {
            transform: translateY(100%);
        }
        to {
            transform: translateY(0);
        }
    }
}

@media (max-width: 480px) {
    .calendar-day {
        min-height: 50px;
    }

    .day-event {
        font-size: 0.65rem;
        padding: 1px 3px;
    }

    .header-actions .btn .btn-text {
        display: inline;
        margin-left: var(--mobile-spacing-xs);
    }
}

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

.btn:focus-visible,
.btn-icon:focus-visible,
.form-control:focus-visible,
.calendar-day:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}