/* Base Styles and Variables */
:root {
    /* Primary Colors */
    --primary-color: #1976d2;
    --primary-light: #e3f2fd;
    --primary-dark: #0d47a1;
    
    /* Secondary Colors */
    --secondary-color: #0097a7;
    
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --mid-gray: #e0e0e0;
    --dark-gray: #757575;
    --black: #212121;
    
    /* Event Type Colors */
    --color-production: #4caf50;
    --color-qc: #ff9800;
    --color-meeting: #2196f3;
    --color-maintenance: #9c27b0;
    --color-validation: #795548;
    --color-deadline: #f44336;
    --color-today: #bbdefb;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Font Sizes */
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-md: 1rem;
    --font-lg: 1.25rem;
    --font-xl: 1.5rem;
    --font-xxl: 2rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
    
    /* Transitions */
    --transition-speed: 0.3s;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: var(--font-md);
    color: var(--black);
    background-color: var(--light-gray);
    line-height: 1.5;
}

/* Container Layout */
.container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styles */
.sidebar {
    width: 250px;
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.logo {
    font-size: var(--font-xl);
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--mid-gray);
}

.logo-icon {
    margin-right: var(--spacing-sm);
    font-size: var(--font-xxl);
}

.menu {
    list-style: none;
    flex-grow: 1;
}

.menu li {
    margin-bottom: var(--spacing-sm);
}

.menu li a {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    text-decoration: none;
    color: var(--dark-gray);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-speed);
}

.menu li a:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.menu li.active a {
    background-color: var(--primary-color);
    color: var(--white);
}

.menu-icon {
    margin-right: var(--spacing-md);
    font-size: var(--font-lg);
}

.user-profile {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    border-top: 1px solid var(--mid-gray);
    margin-top: auto;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: var(--spacing-md);
}

.user-info {
    flex-grow: 1;
}

.user-name {
    font-weight: 600;
    color: var(--black);
}

.user-role {
    font-size: var(--font-sm);
    color: var(--dark-gray);
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    margin-left: 250px; /* Match sidebar width */
    overflow-y: auto;
}

/* Header Styles */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--mid-gray);
}

.header h1 {
    font-size: var(--font-xxl);
    color: var(--black);
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
}

.search-container {
    position: relative;
    margin-right: var(--spacing-lg);
}

.search-container input {
    padding: var(--spacing-sm) var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--mid-gray);
    border-radius: var(--border-radius-md);
    font-size: var(--font-sm);
    width: 250px;
    transition: all var(--transition-speed);
}

.search-container input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-light);
}

.search-container i {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--dark-gray);
}

.notification-bell {
    position: relative;
    cursor: pointer;
}

.notification-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--color-deadline);
    color: var(--white);
    font-size: var(--font-xs);
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* Content View Styles */
.content-view {
    display: none;
}

.active-view {
    display: block;
}

/* View Controls */
.view-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.calendar-controls {
    display: flex;
    align-items: center;
}

.calendar-controls h2 {
    margin: 0 var(--spacing-md);
    font-size: var(--font-xl);
}

.view-selector {
    display: flex;
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.view-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    background: none;
    cursor: pointer;
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--dark-gray);
    transition: all var(--transition-speed);
}

.view-btn:hover {
    background-color: var(--light-gray);
}

.view-btn.active {
    background-color: var(--primary-color);
    color: var(--white);
}

.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dark-gray);
    border-radius: 50%;
    transition: all var(--transition-speed);
}

.icon-btn:hover {
    background-color: var(--light-gray);
    color: var(--primary-color);
}

.primary-btn {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: all var(--transition-speed);
}

.primary-btn:hover {
    background-color: var(--primary-dark);
}

.primary-btn i {
    margin-right: var(--spacing-sm);
}

/* Calendar Styles */
.calendar-container {
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

.calendar-view, .month-view {
    display: none;
}

.active-calendar-view {
    display: block;
}

.calendar-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background-color: var(--primary-color);
    color: var(--white);
}

.weekday {
    padding: var(--spacing-md);
    text-align: center;
    font-weight: 600;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    grid-auto-rows: minmax(100px, auto);
}

.calendar-day {
    border: 1px solid var(--mid-gray);
    padding: var(--spacing-sm);
    min-height: 100px;
    position: relative;
}

.day-number {
    font-size: var(--font-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.other-month {
    background-color: var(--light-gray);
    opacity: 0.7;
}

.calendar-event {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
    color: var(--white);
}

.calendar-event.production {
    background-color: var(--color-production);
}

.calendar-event.qc {
    background-color: var(--color-qc);
}

.calendar-event.meeting {
    background-color: var(--color-meeting);
}

.calendar-event.maintenance {
    background-color: var(--color-maintenance);
}

.calendar-event.validation {
    background-color: var(--color-validation);
}

.calendar-event.deadline {
    background-color: var(--color-deadline);
}

.calendar-event.today {
    background-color: var(--color-today);
    color: var(--black);
    font-weight: 600;
}

.event-time {
    font-weight: 600;
    margin-right: var(--spacing-xs);
}

.event-title {
    flex-grow: 1;
}

.placeholder-text {
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--dark-gray);
    font-style: italic;
}

/* Upcoming Events Section */
.section {
    margin-top: var(--spacing-xl);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.section-header h2 {
    font-size: var(--font-lg);
    font-weight: 600;
}

.upcoming-events {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.event-item {
    display: flex;
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-speed);
}

.event-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.event-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 70px;
    padding: var(--spacing-md);
    color: var(--white);
}

.event-item.production .event-date {
    background-color: var(--color-production);
}

.event-item.qc .event-date {
    background-color: var(--color-qc);
}

.event-item.meeting .event-date {
    background-color: var(--color-meeting);
}

.event-item.maintenance .event-date {
    background-color: var(--color-maintenance);
}

.event-item.validation .event-date {
    background-color: var(--color-validation);
}

.event-item.deadline .event-date {
    background-color: var(--color-deadline);
}

.date-day {
    font-size: var(--font-xl);
    font-weight: 700;
}

.date-month {
    font-size: var(--font-xs);
    text-transform: uppercase;
}

.event-details {
    flex-grow: 1;
    padding: var(--spacing-md);
}

.event-details .event-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.event-time, .event-location {
    font-size: var(--font-sm);
    color: var(--dark-gray);
}

.event-actions {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-sm);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    overflow-y: auto;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalFadeIn 0.3s;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.modal-header h2 {
    font-size: var(--font-lg);
    font-weight: 600;
}

.close-modal {
    font-size: var(--font-xl);
    cursor: pointer;
    color: var(--dark-gray);
    transition: color var(--transition-speed);
}

.close-modal:hover {
    color: var(--black);
}

.modal-body {
    padding: var(--spacing-lg);
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-row {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.form-group.half {
    flex: 1;
}

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

input[type="text"],
input[type="date"],
input[type="time"],
select,
textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--mid-gray);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-sm);
    transition: all var(--transition-speed);
}

input[type="text"]:focus,
input[type="date"]:focus,
input[type="time"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-light);
}

.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-group input[type="checkbox"] {
    margin-right: var(--spacing-sm);
}

.form-buttons {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.secondary-btn {
    background-color: var(--light-gray);
    color: var(--dark-gray);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.secondary-btn:hover {
    background-color: var(--mid-gray);
    color: var(--black);
}

/* Notification Dropdown */
.notification-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    width: 380px;
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 200;
    display: none;
    overflow: hidden;
    margin-top: var(--spacing-md);
}

.notification-dropdown.active {
    display: block;
    animation: dropdownFadeIn 0.3s;
}

@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.notification-header h3 {
    font-size: var(--font-md);
    font-weight: 600;
}

.mark-all-read {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: var(--font-sm);
    cursor: pointer;
}

.notification-list {
    max-height: 400px;
    overflow-y: auto;
}

.notification-item {
    display: flex;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--mid-gray);
    transition: background-color var(--transition-speed);
}

.notification-item:hover {
    background-color: var(--light-gray);
}

.notification-item.unread {
    background-color: var(--primary-light);
}

.notification-icon {
    margin-right: var(--spacing-md);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-lg);
    color: var(--white);
}

.notification-icon.qc {
    background-color: var(--color-qc);
}

.notification-icon.meeting {
    background-color: var(--color-meeting);
}

.notification-icon.production {
    background-color: var(--color-production);
}

.notification-content {
    flex-grow: 1;
}

.notification-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.notification-message {
    font-size: var(--font-sm);
    margin-bottom: var(--spacing-xs);
}

.notification-time {
    font-size: var(--font-xs);
    color: var(--dark-gray);
}

.notification-dismiss {
    align-self: flex-start;
}

.notification-footer {
    padding: var(--spacing-md);
    text-align: center;
    border-top: 1px solid var(--mid-gray);
}

.view-all-notifications {
    color: var(--primary-color);
    text-decoration: none;
    font-size: var(--font-sm);
    font-weight: 500;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .upcoming-events {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        padding: var(--spacing-sm);
    }
    
    .main-content {
        margin-left: 0;
        padding: var(--spacing-md);
    }
    
    .menu {
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .menu li {
        margin-bottom: 0;
    }
    
    .menu li a {
        padding: var(--spacing-sm);
    }
    
    .menu-icon {
        margin-right: var(--spacing-xs);
    }
    
    .user-profile {
        display: none;
    }
    
    .upcoming-events {
        grid-template-columns: 1fr;
    }
    
    .header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        margin-top: var(--spacing-md);
        width: 100%;
    }
    
    .search-container {
        width: 100%;
        margin-right: 0;
        margin-bottom: var(--spacing-md);
    }
    
    .search-container input {
        width: 100%;
    }
    
    .view-controls {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .calendar-controls, .view-selector, .schedule-actions {
        width: 100%;
        justify-content: center;
    }
    
    .notification-dropdown {
        width: 100%;
        max-width: 380px;
        right: -100px;
    }
}

@media (max-width: 480px) {
    .calendar-header {
        font-size: var(--font-xs);
    }
    
    .weekday {
        padding: var(--spacing-xs);
    }
    
    .calendar-day {
        min-height: 60px;
        padding: var(--spacing-xs);
    }
    
    .calendar-event {
        font-size: 0.6rem;
    }
    
    .event-time, .event-title {
        display: block;
    }
    
    .modal-content {
        width: 95%;
    }
    
    .form-row {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .notification-dropdown {
        width: 100%;
        max-width: 320px;
        right: -150px;
    }
}