/* ============================================
   TaskFlow - Mobile-First CSS
   Modern, Responsive Task Management Interface
   ============================================ */

:root {
    --primary-color: #4A90E2;
    --secondary-color: #7B68EE;
    --success-color: #2ECC71;
    --danger-color: #E74C3C;
    --warning-color: #F39C12;
    --dark: #2C3E50;
    --light: #ECF0F1;
    --gray: #95A5A6;
    --white: #FFFFFF;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-lg: 0 5px 20px rgba(0,0,0,0.15);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Login & Register Screens
   ============================================ */

#loginScreen, #registerScreen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.login-container {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header i {
    font-size: 60px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.login-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 5px;
}

.login-header p {
    color: var(--gray);
    font-size: 14px;
}

.auth-form .form-group {
    margin-bottom: 20px;
}

.auth-form input {
    width: 100%;
    padding: 15px;
    border: 2px solid #E0E0E0;
    border-radius: 10px;
    font-size: 15px;
    transition: var(--transition);
}

.auth-form input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.auth-switch {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--gray);
}

.auth-switch a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

/* ============================================
   Main App Layout
   ============================================ */

#appScreen {
    background: var(--light);
    min-height: 100vh;
}

.top-nav {
    background: var(--white);
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 15px;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-left h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--dark);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: #3A80D2;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--gray);
    color: var(--white);
}

.btn-secondary:hover {
    background: #7F8C8D;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.icon-btn {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--dark);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

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

.add-btn:hover {
    background: #3A80D2;
}

/* ============================================
   Sidebar
   ============================================ */

.sidebar {
    position: fixed;
    top: 0;
    left: -300px;
    width: 300px;
    height: 100%;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 1000;
    display: flex;
    flex-direction: column;
}

.sidebar.active {
    left: 0;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid #E0E0E0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
}

.user-info i {
    font-size: 30px;
    color: var(--primary-color);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.menu-section {
    margin-bottom: 30px;
}

.menu-section h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray);
    text-transform: uppercase;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.menu-list {
    list-style: none;
}

.menu-list li {
    margin-bottom: 5px;
}

.menu-list a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    border-radius: 10px;
    text-decoration: none;
    color: var(--dark);
    transition: var(--transition);
    position: relative;
}

.menu-list a:hover {
    background: var(--light);
}

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

.menu-list a i {
    width: 20px;
    text-align: center;
}

.badge {
    margin-left: auto;
    background: var(--light);
    color: var(--dark);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
}

.menu-list a.active .badge {
    background: rgba(255,255,255,0.3);
    color: var(--white);
}

.badge.danger {
    background: var(--danger-color);
    color: var(--white);
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid #E0E0E0;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: none;
    z-index: 999;
}

.overlay.active {
    display: block;
}

/* ============================================
   Main Content
   ============================================ */

.main-content {
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 15px;
    margin-bottom: 25px;
}

.summary-card {
    background: var(--white);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 15px;
}

.summary-card i {
    font-size: 30px;
    color: var(--primary-color);
}

.summary-card h4 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 2px;
}

.summary-card p {
    font-size: 12px;
    color: var(--gray);
    text-transform: uppercase;
}

/* ============================================
   Task List
   ============================================ */

.task-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.task-item {
    background: var(--white);
    padding: 18px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    align-items: flex-start;
    gap: 15px;
    transition: var(--transition);
    cursor: pointer;
}

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

.task-item.completed {
    opacity: 0.6;
}

.task-checkbox {
    width: 24px;
    height: 24px;
    border: 2px solid var(--gray);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.task-checkbox:hover {
    border-color: var(--primary-color);
}

.task-checkbox.checked {
    background: var(--success-color);
    border-color: var(--success-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.task-content {
    flex: 1;
    min-width: 0;
}

.task-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 5px;
}

.task-item.completed .task-title {
    text-decoration: line-through;
}

.task-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
    color: var(--gray);
}

.task-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.task-priority {
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.task-priority.high {
    background: #FFE5E5;
    color: var(--danger-color);
}

.task-priority.medium {
    background: #FFF4E5;
    color: var(--warning-color);
}

.task-priority.low {
    background: #E5F4FF;
    color: var(--primary-color);
}

.task-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 8px;
}

.task-tag {
    background: var(--light);
    color: var(--dark);
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray);
}

.empty-state i {
    font-size: 80px;
    margin-bottom: 20px;
    opacity: 0.3;
}

.empty-state h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

/* ============================================
   Modal
   ============================================ */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 10000;
    overflow-y: auto;
    padding: 20px;
}

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

.modal-content {
    background: var(--white);
    border-radius: var(--border-radius);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    margin: 20px 0;
}

.modal-content.modal-sm {
    max-width: 400px;
}

.modal-header {
    padding: 25px;
    border-bottom: 1px solid #E0E0E0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 22px;
    font-weight: 700;
}

.close-modal, .close-list-modal {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--gray);
    cursor: pointer;
}

.task-form {
    padding: 25px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #E0E0E0;
    border-radius: 10px;
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
}

.reminder-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.color-picker {
    display: flex;
    gap: 10px;
}

.color-picker label {
    cursor: pointer;
}

.color-picker input[type="radio"] {
    display: none;
}

.color-dot {
    display: block;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 3px solid transparent;
    transition: var(--transition);
}

.color-picker input[type="radio"]:checked + .color-dot {
    border-color: var(--dark);
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #E0E0E0;
}

/* ============================================
   Toast Notification
   ============================================ */

.toast {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dark);
    color: var(--white);
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 3000;
    max-width: 90%;
}

.toast.show {
    bottom: 20px;
}

.toast.success {
    background: var(--success-color);
}

.toast.error {
    background: var(--danger-color);
}

/* ============================================
   Loading Spinner
   ============================================ */

.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5000;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--light);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   Responsive Design
   ============================================ */

@media (min-width: 768px) {
    .modal-content {
        margin: 50px 0;
    }
    
    .summary-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   PWA & Mobile Enhancements
   ============================================ */

@media (display-mode: standalone) {
    body {
        padding-top: env(safe-area-inset-top);
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* Touch feedback */
.task-item:active,
.btn:active,
.icon-btn:active {
    transform: scale(0.98);
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Hide scrollbar but keep functionality */
.sidebar-content::-webkit-scrollbar {
    width: 5px;
}

.sidebar-content::-webkit-scrollbar-thumb {
    background: var(--gray);
    border-radius: 10px;
}

/* ===================================
   Calendar Styles
   =================================== */

/* ===================================
   Calendar Styles (Google Calendar Inspired)
   =================================== */

.calendar-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.calendar-nav {
    display: flex;
    align-items: center;
    gap: 15px;
}

.calendar-nav h3 {
    margin: 0;
    font-size: 1.2rem;
    min-width: 200px;
    text-align: center;
    font-weight: 600;
    color: var(--dark);
}

.calendar-view-toggle {
    display: flex;
    gap: 10px;
}

.view-btn {
    padding: 8px 16px;
    border: 2px solid #E0E0E0;
    background: white;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
    font-weight: 500;
}

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

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

.calendar {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0;
    margin-bottom: 0;
    border-bottom: 2px solid #E0E0E0;
    padding-bottom: 10px;
}

.calendar-weekday-name {
    font-weight: 600;
    color: var(--gray);
    font-size: 0.85rem;
    text-align: center;
    padding: 8px 4px;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0;
    border: 1px solid #E0E0E0;
    border-radius: 8px;
    overflow: hidden;
}

.calendar-day-cell {
    min-height: 100px;
    border-right: 1px solid #E0E0E0;
    border-bottom: 1px solid #E0E0E0;
    padding: 8px;
    cursor: pointer;
    transition: all 0.2s;
    background: white;
    display: flex;
    flex-direction: column;
    position: relative;
}

.calendar-day-cell:nth-child(7n) {
    border-right: none;
}

.calendar-day-cell:hover {
    background: #F8F9FA;
}

.calendar-day-cell.other-month {
    background: #FAFAFA;
    opacity: 0.5;
}

.calendar-day-cell.other-month .day-number {
    color: #BDBDBD;
}

.calendar-day-cell.weekend:not(.other-month) {
    background: #FAFBFC;
}

.calendar-day-cell.today {
    background: #E8F4FD;
}

.calendar-day-cell.today .day-number {
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.calendar-day-cell.has-tasks:not(.today) {
    background: #F5F9FF;
}

.day-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.day-number {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark);
}

.task-count {
    background: var(--primary-color);
    color: white;
    border-radius: 10px;
    padding: 2px 6px;
    font-size: 0.7rem;
    font-weight: 600;
}

.day-tasks {
    display: flex;
    flex-direction: column;
    gap: 3px;
    flex: 1;
    overflow: hidden;
}

.calendar-task-preview {
    background: white;
    border-left: 3px solid var(--primary-color);
    padding: 4px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
    overflow: hidden;
}

.calendar-task-preview:hover {
    transform: translateX(2px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.calendar-task-preview.high {
    border-left-color: var(--danger-color);
    background: #FFF5F5;
}

.calendar-task-preview.medium {
    border-left-color: var(--warning-color);
    background: #FFFBF0;
}

.calendar-task-preview.low {
    border-left-color: var(--success-color);
    background: #F0FFF4;
}

.task-time {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.7rem;
    flex-shrink: 0;
}

.task-preview-title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--dark);
}

.more-tasks {
    font-size: 0.7rem;
    color: var(--primary-color);
    font-weight: 600;
    padding: 4px 6px;
    cursor: pointer;
    text-align: center;
    border-radius: 4px;
    transition: all 0.2s;
}

.more-tasks:hover {
    background: var(--primary-color);
    color: white;
}

/* Day Detail Modal */
.day-detail-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s;
    padding: 20px;
}

.day-detail-modal.active {
    opacity: 1;
}

.day-detail-content {
    background: white;
    border-radius: 12px;
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.day-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #E0E0E0;
}

.day-detail-header h3 {
    margin: 0;
    font-size: 1.3rem;
    color: var(--dark);
}

.close-day-detail {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray);
    padding: 5px;
    transition: color 0.2s;
}

.close-day-detail:hover {
    color: var(--dark);
}

.day-detail-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.day-detail-task {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: #F8F9FA;
    border-radius: 8px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.2s;
}

.day-detail-task:hover {
    background: #E8F4FD;
    transform: translateX(4px);
}

.task-indicator {
    width: 4px;
    border-radius: 2px;
    background: var(--primary-color);
    flex-shrink: 0;
}

.task-indicator.high {
    background: var(--danger-color);
}

.task-indicator.medium {
    background: var(--warning-color);
}

.task-indicator.low {
    background: var(--success-color);
}

.task-info {
    flex: 1;
}

.task-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.task-title-row .task-title {
    font-weight: 600;
    color: var(--dark);
    font-size: 1rem;
}

.task-priority-badge {
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.task-priority-badge.high {
    background: var(--danger-color);
    color: white;
}

.task-priority-badge.medium {
    background: var(--warning-color);
    color: white;
}

.task-priority-badge.low {
    background: var(--success-color);
    color: white;
}

.task-time-row,
.task-list-row {
    font-size: 0.85rem;
    color: var(--gray);
    margin-top: 4px;
}

.task-time-row i,
.task-list-row i {
    margin-right: 4px;
    color: var(--primary-color);
}

.no-tasks-message {
    text-align: center;
    color: var(--gray);
    padding: 40px 20px;
    font-size: 1rem;
}

.day-detail-footer {
    padding: 20px;
    border-top: 1px solid #E0E0E0;
    display: flex;
    justify-content: center;
}

/* Week view specific */
.calendar.week-view .calendar-days {
    grid-template-columns: repeat(7, 1fr);
}

.calendar.week-view .calendar-day {
    aspect-ratio: auto;
    min-height: 120px;
}

/* Calendar task list on day click */
.calendar-day-tasks {
    margin-top: 20px;
    padding: 15px;
    background: var(--light-gray);
    border-radius: 8px;
}

.calendar-day-tasks h4 {
    margin-top: 0;
    margin-bottom: 15px;
    color: var(--primary);
}

/* ===================================
   Delete Button Styles
   =================================== */

.task-item.completed .task-delete {
    display: inline-flex !important;
}

.task-delete {
    display: none;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--danger-color);
    color: white;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    margin-left: 10px;
}

.task-delete:hover {
    background: #c0392b;
    transform: scale(1.1);
}

.btn-danger {
    background: var(--danger-color);
    color: white;
    border: none;
}

.btn-danger:hover {
    background: #c0392b;
}

#completedActions {
    text-align: center;
    padding: 15px;
    background: var(--light-gray);
    border-radius: 8px;
}

/* ===================================
   Modal Actions Layout
   =================================== */

.modal-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

#deleteTaskBtn {
    margin-right: auto;
    opacity: 1 !important;
    visibility: visible !important;
    background: var(--danger-color) !important;
    color: white !important;
    display: inline-flex !important;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

#deleteTaskBtn:hover {
    background: #c0392b !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(231, 76, 60, 0.3);
}

#deleteTaskBtn i {
    opacity: 1 !important;
    color: white !important;
}

/* Hidden state for delete button */
#deleteTaskBtn[style*="display: none"],
#deleteTaskBtn.hidden {
    display: none !important;
}


/* ===================================
   Responsive Calendar
   =================================== */

@media (max-width: 768px) {
    .calendar-controls {
        flex-direction: column;
    }
    
    .calendar-nav h3 {
        font-size: 1rem;
        min-width: 150px;
    }
    
    .calendar {
        padding: 10px;
    }
    
    .calendar-weekday-name {
        font-size: 0.75rem;
        padding: 6px 2px;
    }
    
    .calendar-day-cell {
        min-height: 80px;
        padding: 4px;
    }
    
    .day-number {
        font-size: 0.8rem;
    }
    
    .task-count {
        font-size: 0.65rem;
        padding: 1px 4px;
    }
    
    .calendar-task-preview {
        font-size: 0.65rem;
        padding: 3px 4px;
    }
    
    .task-time {
        font-size: 0.65rem;
    }
    
    .more-tasks {
        font-size: 0.65rem;
        padding: 3px 4px;
    }
    
    .day-detail-modal {
        padding: 10px;
    }
    
    .day-detail-content {
        max-height: 90vh;
    }
    
    .day-detail-header {
        padding: 15px;
    }
    
    .day-detail-header h3 {
        font-size: 1.1rem;
    }
    
    .day-detail-body {
        padding: 15px;
    }
    
    .day-detail-task {
        padding: 10px;
    }
}

/* Larger screens - more comfortable spacing */
@media (min-width: 1024px) {
    .calendar-day-cell {
        min-height: 120px;
        padding: 12px;
    }
    
    .calendar-task-preview {
        font-size: 0.8rem;
        padding: 5px 8px;
    }
}