:root {
    --bg-dark: #121214;
    --sidebar-bg: rgba(25, 25, 28, 0.7);
    --glass-bg: rgba(35, 35, 40, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-secondary: #9ca3af;
    --accent-green: #25f478;
    /* Neon Emerald */
    --accent-blue: #2b6cee;
    /* Electric Blue */
    --accent-magenta: #e028b0;
    /* Vibrant Magenta */
    --input-bg: rgba(0, 0, 0, 0.2);
    --input-border: rgba(255, 255, 255, 0.1);
    --hover-bg: rgba(255, 255, 255, 0.05);
    --task-hover-bg: rgba(45, 45, 52, 0.7);
    --hover-border: rgba(255, 255, 255, 0.15);
    --empty-bg: rgba(255, 255, 255, 0.02);
    --ring-bg: rgba(255, 255, 255, 0.1);
    /* Fire Orange */
}

body.light-mode {
    --bg-dark: #f0f2f5;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --sidebar-bg: rgba(255, 255, 255, 0.8);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(0, 0, 0, 0.08);
    /* Darker borders for contrast inside light mode */
    --accent-green: #10b981;
    --accent-blue: #3b82f6;
    --accent-magenta: #ec4899;
    --input-bg: rgba(255, 255, 255, 0.5);
    --input-border: rgba(0, 0, 0, 0.1);
    --hover-bg: rgba(0, 0, 0, 0.05);
    --task-hover-bg: rgba(255, 255, 255, 0.9);
    --hover-border: rgba(0, 0, 0, 0.15);
    --empty-bg: rgba(0, 0, 0, 0.02);
    --ring-bg: rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Space Grotesk', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow: hidden;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(37, 244, 120, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(224, 40, 176, 0.03) 0%, transparent 50%);
}

.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Glassmorphism Utilities */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.15);
    /* Softer shadow */
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
    z-index: 10;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    scrollbar-width: none; /* Firefox */
}

.sidebar::-webkit-scrollbar {
    display: none; /* Chrome/Safari/Brave */
}

.sidebar.collapsed {
    width: 80px;
    padding: 24px 8px;
}

.main-content {
    flex: 1;
    padding: 40px 60px;
    overflow-y: auto;
    position: relative;
    padding-bottom: 100px;
    transition: padding 0.3s ease;
}



/* Hide text in collapsed mode */
.sidebar.collapsed .logo span,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .nav-item .badge,
.sidebar.collapsed .theme-toggle-btn span,
.sidebar.collapsed .add-task-btn span,
.sidebar.collapsed .lang-selector-container,
.sidebar.collapsed .sidebar-footer,
.sidebar.collapsed .search-container span {
    display: none;
}

.sidebar.collapsed .search-container input {
    display: none;
}

.sidebar.collapsed .search-container {
    display: flex;
    justify-content: center;
    padding: 10px 0;
    margin-bottom: 6px;
    gap: 0;
}

.sidebar.collapsed .search-icon {
    font-size: 1.2rem;
    width: auto;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 10px 0;
}

.sidebar.collapsed .nav-item i {
    font-size: 1.2rem;
    width: auto;
}

.sidebar.collapsed .toggle-sidebar-btn i {
    transform: rotate(180deg);
}

.sidebar.collapsed .logo {
    justify-content: center;
    padding-left: 0;
}

.sidebar.collapsed .add-task-btn,
.sidebar.collapsed .theme-toggle-btn {
    padding: 12px 0;
}

.toggle-sidebar-btn:hover {
    background: var(--hover-bg) !important;
    color: var(--text-primary) !important;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 40px;
    padding-left: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}

.search-container {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    margin-bottom: 6px;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.search-container:hover {
    background: var(--hover-bg);
}

.search-icon {
    color: var(--text-secondary);
    font-size: 0.9rem;
    width: 20px;
    text-align: center;
}

.search-input {
    flex: 1;
    border: none !important;
    background: transparent !important;
    padding: 0 !important;
    font-size: 0.95rem !important;
    color: var(--text-primary);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-item:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.nav-item.active {
    background: rgba(37, 244, 120, 0.1);
    color: var(--accent-green);
    border-left: 3px solid var(--accent-green);
}

.nav-item i {
    width: 20px;
    text-align: center;
}

.badge {
    margin-left: auto;
    background: var(--hover-bg);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
}

.nav-item.active .badge {
    background: rgba(37, 244, 120, 0.2);
    color: var(--accent-green);
}

.divider {
    height: 1px;
    background: var(--glass-border);
    margin: 16px 0;
}

.sidebar-bottom {
    margin-top: auto;
    padding-top: 16px;
}

.sidebar.collapsed .sidebar-bottom {
    margin-top: 8px;
    padding-top: 8px;
    border-top: none;
}

/* Sidebar Ad Styles */
.sidebar-ad-container {
    margin-top: 20px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed var(--glass-border);
    border-radius: 12px;
    text-align: center;
}

.ad-label {
    font-size: 0.6rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
    margin-bottom: 8px;
    font-weight: 600;
}

.ad-slot {
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    overflow: hidden;
}

.ad-slot::after {
    content: 'Espacio para Anuncio';
    font-size: 0.75rem;
    color: var(--text-secondary);
    opacity: 0.5;
}

.add-task-btn {
    width: 100%;
    padding: 12px;
    background: rgba(43, 108, 238, 0.15);
    border: 1px solid rgba(43, 108, 238, 0.3);
    color: var(--accent-blue);
    border-radius: 12px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 0 15px rgba(43, 108, 238, 0.1);
}

.add-task-btn:hover {
    background: rgba(43, 108, 238, 0.25);
    box-shadow: 0 0 20px rgba(43, 108, 238, 0.3);
    transform: translateY(-1px);
}

.donate-btn {
    width: 100%;
    padding: 10px 12px;
    margin-top: 8px;
    background: rgba(255, 94, 58, 0.1);
    border: 1px solid rgba(255, 94, 58, 0.3);
    color: #ff6b35;
    border-radius: 12px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: 0 0 12px rgba(255, 94, 58, 0.08);
}

.donate-btn:hover {
    background: rgba(255, 94, 58, 0.2);
    box-shadow: 0 0 20px rgba(255, 94, 58, 0.25);
    transform: translateY(-1px);
    color: #ff8c5a;
}

.sidebar.collapsed .donate-btn span {
    display: none;
}

.sidebar.collapsed .donate-btn {
    padding: 12px 0;
    justify-content: center;
}

.theme-toggle-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    border-radius: 12px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
    margin-bottom: 12px;
}

.theme-toggle-btn:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

/* Main Content */


.view-section {
    display: none;
    animation: fadeIn 0.4s ease;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.view-header {
    margin-bottom: 32px;
}

.view-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.date-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-top: 4px;
}

/* Dashboard Widgets */
.dashboard-widgets {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 40px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.widget {
    flex: 1;
    max-width: 400px;
    text-align: center;
}

.widget h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 30px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.widget-progress {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.progress-ring-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.progress-ring {
    transform: rotate(-90deg);
    transform-origin: center;
    overflow: visible;
}

.progress-ring-circle {
    transition: stroke-dashoffset 1s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 0 12px var(--accent-green));
    stroke-linecap: round;
}

.progress-ring-bg {
    stroke: var(--ring-bg);
}

.progress-text {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.progress-text .percentage {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-primary);
    text-shadow: 0 0 15px rgba(37, 244, 120, 0.3);
}

.progress-text .label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Task List */
.task-list-container {
    background: transparent;
    max-width: 800px;
}

.task-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.empty-state {
    color: var(--text-secondary);
    font-style: italic;
    padding: 20px;
    text-align: center;
    background: var(--empty-bg);
    border-radius: 12px;
    border: 1px dashed var(--input-border);
}

.task-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.2s ease;
}

.task-item:hover {
    background: var(--task-hover-bg);
    border-color: var(--hover-border);
}

.task-item.completed .task-title {
    text-decoration: line-through;
    color: var(--text-secondary);
}

.task-checkbox-container {
    position: relative;
    width: 24px;
    height: 24px;
    cursor: pointer;
}

.task-checkbox {
    opacity: 0;
    width: 0;
    height: 0;
}

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 24px;
    width: 24px;
    background-color: var(--glass-bg);
    border: 2px solid var(--text-secondary);
    border-radius: 6px;
    transition: all 0.2s ease;
}

.task-item:hover .checkmark {
    border-color: var(--accent-blue);
}

.task-checkbox:checked~.checkmark {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    box-shadow: 0 0 10px rgba(43, 108, 238, 0.3);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 7px;
    top: 3px;
    width: 6px;
    height: 12px;
    border: solid var(--text-primary);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.task-checkbox:checked~.checkmark:after {
    display: block;
}

.task-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.task-title {
    font-size: 1.1rem;
    font-weight: 500;
    transition: color 0.2s;
    cursor: pointer;
    word-wrap: break-word;
    overflow-wrap: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.task-item.completed .task-title {
    text-decoration: line-through;
    color: var(--text-secondary);
}

.task-notes {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 2px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    word-wrap: break-word;
    overflow-wrap: break-word;
    cursor: pointer;
    transition: all 0.2s ease;
}

.task-notes.expanded {
    display: block;
    -webkit-line-clamp: unset;
    line-clamp: unset;
    overflow: visible;
}

.task-meta {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.tag-pill {
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

.due-date {
    background: rgba(43, 108, 238, 0.1);
    color: var(--accent-blue);
    border: 1px solid rgba(43, 108, 238, 0.2);
}

.project-label {
    font-size: 0.8rem;
    font-weight: 500;
}

.project-work {
    color: var(--accent-magenta);
}

.project-personal {
    color: var(--accent-green);
}

.project-health {
    color: var(--accent-blue);
}

.task-actions {
    opacity: 0;
    transition: opacity 0.2s, pointer-events 0.2s;
    display: flex;
    gap: 8px;
    /* Adjusted gap for 3 buttons */
    pointer-events: none;
}

.task-item:hover .task-actions,
.task-item:focus-within .task-actions {
    opacity: 1;
    pointer-events: auto;
}

.task-actions button {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 6px;
    border-radius: 6px;
}

.task-actions button:hover {
    color: var(--text-primary);
    background: var(--hover-bg);
}

.task-actions .delete-btn:hover {
    color: #ff4757;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.modal-overlay.active {
    display: flex;
}

.glass-modal {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    width: 90%;
    max-width: 500px;
    padding: 32px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s ease;
}

.modal-overlay.active .glass-modal {
    transform: translateY(0);
    opacity: 1;
}

.action-modal-inner {
    max-width: 320px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.close-modal {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

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

.modal-body {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-footer {
    display: flex;
    justify-content: center;
    margin-top: 32px;
}

.glass-btn {
    padding: 14px 48px;
    border-radius: 16px;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    border: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.glass-btn.primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-magenta) 100%);
    color: #ffffff;
    box-shadow: 0 12px 24px rgba(43, 108, 238, 0.3);
    position: relative;
    overflow: hidden;
}

.glass-btn.primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.glass-btn.primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 35px rgba(43, 108, 238, 0.5);
}

.glass-btn.primary:hover::after {
    left: 100%;
}

.glass-btn.primary:active {
    transform: translateY(-1px) scale(0.98);
}

.glass-input,
.glass-select {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    padding: 14px 16px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.glass-input.error {
    border-color: #ff4757;
    box-shadow: 0 0 10px rgba(255, 71, 87, 0.4);
}

.glass-input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

body.light-mode .glass-input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(0);
}

.glass-input:focus,
.glass-select:focus {
    border-color: var(--accent-blue);
}

.primary-input {
    font-size: 1.2rem;
    padding: 16px;
}

.task-meta-inputs {
    display: flex;
    gap: 16px;
}

.glow-btn {
    background: var(--accent-blue);
    color: #ffffff;
    border: none;
    padding: 14px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    margin-top: 10px;
    transition: all 0.3s;
    box-shadow: 0 0 15px rgba(43, 108, 238, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.glow-btn:hover {
    background: #3b7cf8;
    box-shadow: 0 0 25px rgba(43, 108, 238, 0.6);
}

.outline-btn {
    background: transparent;
    border: 1px solid var(--input-border);
    box-shadow: none;
    margin-top: 0;
    font-size: 1rem;
    padding: 12px;
}

.outline-btn:hover {
    background: rgba(43, 108, 238, 0.1);
    border-color: var(--accent-blue);
    box-shadow: none;
}

.outline-btn.logout:hover {
    background: rgba(255, 71, 87, 0.1);
    border-color: #ff4757;
    color: #ff4757;
}

/* Insights View Specifics */
.insights-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 800px;
}

.streak-widget {
    display: flex;
    align-items: center;
    gap: 20px;
    background: linear-gradient(135deg, rgba(35, 35, 40, 0.8) 0%, rgba(37, 244, 120, 0.1) 100%);
    border: 1px solid rgba(37, 244, 120, 0.3);
}

.streak-icon {
    font-size: 3rem;
    color: var(--accent-green);
    text-shadow: 0 0 20px rgba(37, 244, 120, 0.6);
}

.streak-data h2 {
    font-size: 2.5rem;
    margin: 0;
    color: var(--text-primary);
}

.streak-data p {
    color: var(--accent-green);
    font-weight: 600;
}

.chart-container {
    height: 250px;
    width: 100%;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Language Selector */
.language-selector {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 50;
    width: 120px;
}

.language-selector .glass-select {
    padding: 10px 16px;
    border-radius: 20px;
    background: rgba(35, 35, 40, 0.8);
    backdrop-filter: blur(12px);
    cursor: pointer;
    font-weight: 600;
}

/* Calendar Widget Styles */
.calendar-widget {
    max-width: 500px;
    margin-left: 0;
    padding: 20px;
}

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

.calendar-controls h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
    text-transform: capitalize;
}

.cal-btn {
    background: var(--hover-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.cal-btn:hover {
    background: var(--accent-blue);
    color: white;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    text-align: center;
}

.weekday {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 700;
    padding: 8px 0;
    text-transform: uppercase;
}

.day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    color: var(--text-primary);
}

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

.day.today {
    background: rgba(37, 244, 120, 0.1);
    color: var(--accent-green);
    font-weight: 700;
    border: 1px solid var(--accent-green);
}

.day.selected {
    background: var(--accent-blue);
    color: white;
    font-weight: 700;
    box-shadow: 0 0 15px rgba(43, 108, 238, 0.4);
}

.day.has-tasks::after {
    content: '';
    position: absolute;
    bottom: 6px;
    width: 4px;
    height: 4px;
    background: var(--accent-magenta);
    border-radius: 50%;
    box-shadow: 0 0 5px var(--accent-magenta);
}

.day.other-month {
    opacity: 0.2;
}

/* Login Overlay */
.login-overlay {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(135deg, #0a0a0c 0%, #1a1a1e 100%);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(20px);
}

.login-overlay.active {
    display: flex;
}

.login-card {
    width: 90%;
    max-width: 400px;
    padding: 40px;
    text-align: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.login-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
}

.login-logo i {
    font-size: 3rem;
    color: var(--accent-blue);
    filter: drop-shadow(0 0 15px rgba(43, 108, 238, 0.4));
}

.login-logo h1 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    background: linear-gradient(to right, #fff, #9ca3af);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.google-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 14px;
    border-radius: 12px;
    background: white;
    color: #1f2937;
    border: none;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.google-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
    background: #f9fafb;
}

.google-btn img {
    width: 20px;
    height: 20px;
}

.login-footer {
    margin-top: 30px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    opacity: 0.6;
}

.login-footer a {
    color: var(--accent-blue);
    text-decoration: none;
}

/* --- Mobile Responsiveness --- */
@media (max-width: 768px) {
    .task-item {
        padding: 12px 14px;
        gap: 12px;
    }

    .main-content {
        padding: 20px 16px;
    }

    .task-checkbox-container {
        width: 20px;
        height: 20px;
    }

    .checkmark {
        width: 20px;
        height: 20px;
    }

    .checkmark:after {
        left: 6px;
        top: 2px;
        width: 5px;
        height: 10px;
    }

    .task-title {
        font-size: 1rem;
    }

    /* Make notes square when sidebar is open */
    .sidebar:not(.collapsed)+.main-content .task-list {
        display: grid;
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .sidebar:not(.collapsed)+.main-content .task-item {
        flex-direction: column;
        align-items: flex-start;
        min-height: 110px;
        justify-content: flex-start;
        position: relative;
        padding: 12px;
        overflow: hidden;
    }

    .sidebar:not(.collapsed)+.main-content .task-content {
        width: 100%;
        margin-bottom: 30px;
    }

    .sidebar:not(.collapsed)+.main-content .task-checkbox-container {
        margin-bottom: 5px;
    }

    .sidebar:not(.collapsed)+.main-content .task-title {
        font-size: 0.9rem;
        -webkit-line-clamp: 3;
    }

    .sidebar:not(.collapsed)+.main-content .task-notes {
        -webkit-line-clamp: 2;
    }

    .sidebar:not(.collapsed)+.main-content .task-actions {
        position: absolute;
        bottom: 8px;
        right: 8px;
        opacity: 1;
        pointer-events: auto;
        background: rgba(0, 0, 0, 0.5);
        border-radius: 8px;
        padding: 2px;
    }
}