/* ===================================================
   GLOBAL STYLES
   =================================================== */

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

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8faff;
    --text-primary: #000000;
    --text-secondary: #666666;
    --border-color: rgba(37, 99, 235, 0.15);
    --glass-bg: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(37, 99, 235, 0.2);
    --shadow: 0 8px 32px rgba(37, 99, 235, 0.12);
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --delete-bg: rgba(220, 38, 38, 0.1);
    --delete-border: rgba(220, 38, 38, 0.2);
    --delete-text: #dc2626;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #000000;
        --bg-secondary: #0a0e1a;
        --text-primary: #ffffff;
        --text-secondary: #999999;
        --border-color: rgba(59, 130, 246, 0.2);
        --glass-bg: rgba(0, 0, 0, 0.6);
        --glass-border: rgba(59, 130, 246, 0.25);
        --shadow: 0 8px 32px rgba(59, 130, 246, 0.15);
        --accent: #3b82f6;
        --accent-hover: #60a5fa;
        --delete-bg: rgba(239, 68, 68, 0.15);
        --delete-border: rgba(239, 68, 68, 0.25);
        --delete-text: #ef4444;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
    position: relative;
    overflow-x: hidden;
    transition: background 0.3s ease, color 0.3s ease;
}

.background-blob {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    z-index: -1;
    animation: float 20s infinite ease-in-out;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    top: -10%;
    left: -10%;
    animation-delay: 0s;
}

@media (prefers-color-scheme: dark) {
    .blob-1 {
        background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    }
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.02) 0%, transparent 70%);
    top: 50%;
    right: -5%;
    animation-delay: 7s;
}

@media (prefers-color-scheme: dark) {
    .blob-2 {
        background: radial-gradient(circle, rgba(255, 255, 255, 0.02) 0%, transparent 70%);
    }
}

.blob-3 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.025) 0%, transparent 70%);
    bottom: -15%;
    left: 30%;
    animation-delay: 14s;
}

@media (prefers-color-scheme: dark) {
    .blob-3 {
        background: radial-gradient(circle, rgba(255, 255, 255, 0.025) 0%, transparent 70%);
    }
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

.container {
    width: 100%;
    max-width: 100%;
    position: relative;
    z-index: 1;
    padding: 0;
}

.section {
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(30px);
    backdrop-filter: blur(30px);
    border-radius: 28px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
    padding: 32px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    animation: fadeInUp 0.6s ease-out;
    position: relative;
    overflow: hidden;
}

#app-section {
    max-width: none;
    margin: 0;
    padding: 0;
    border-radius: 0;
    border: none;
    min-height: 100vh;
    background: var(--bg-primary);
}

#login-section {
    max-width: 600px;
    margin: 0 auto;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
}

.section:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-8px);
    box-shadow: 0 16px 56px 0 rgba(0, 0, 0, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

#app-section:hover {
    transform: none;
    box-shadow: none;
}

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

.hidden {
    display: none;
}

/* ===================================================
   LOGIN SECTION
   =================================================== */

.login-box {
    text-align: center;
}

.login-box h1 {
    font-size: 48px;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 800;
    animation: float-icon 3s infinite ease-in-out;
}

.subtitle {
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-size: 16px;
}

.testing-notice {
    margin: 24px auto;
    padding: 16px 20px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 12px;
    max-width: 420px;
    text-align: left;
}

@media (prefers-color-scheme: dark) {
    .testing-notice {
        background: rgba(245, 158, 11, 0.15);
        border-color: rgba(245, 158, 11, 0.4);
    }
}

.notice-icon {
    font-size: 20px;
    flex-shrink: 0;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.notice-content {
    flex: 1;
}

.notice-content h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    color: #d97706;
}

@media (prefers-color-scheme: dark) {
    .notice-content h4 {
        color: #fbbf24;
    }
}

.notice-content p {
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-secondary);
}

.notice-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.notice-link:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

.login-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    padding: 14px 32px;
    border-radius: 16px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.login-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    background: var(--accent-hover);
}

.login-button:active {
    transform: translateY(0) scale(1);
}

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

/* ===================================================
   APP HEADER
   =================================================== */

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 32px;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    gap: 20px;
    flex-wrap: wrap;
    background: var(--bg-primary);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.header h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-left: auto;
    transition: all 0.3s ease;
}

.user-info:hover {
    background: var(--bg-secondary);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.user-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1;
}

.user-email {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1;
}

.logout-button {
    background: var(--delete-bg);
    color: var(--delete-text);
    border: 1px solid var(--delete-border);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    padding: 10px 20px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.logout-button:hover {
    background: rgba(220, 38, 38, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.2);
}

@media (prefers-color-scheme: dark) {
    .logout-button:hover {
        background: rgba(239, 68, 68, 0.2);
        box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
    }
}

/* ===================================================
   ADD TASK SECTION
   =================================================== */

.add-task-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 36px;
    position: relative;
}

.task-input-wrapper {
    display: flex;
    gap: 8px;
    align-items: center;
}

#task-input {
    flex: 1;
    padding: 18px 24px;
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1.5px solid var(--border-color);
    border-radius: 16px;
    font-size: 16px;
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
}

#task-input::placeholder {
    color: var(--text-secondary);
    font-weight: 400;
}

#task-input:focus {
    background: var(--bg-secondary);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

@media (prefers-color-scheme: dark) {
    #task-input:focus {
        box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.05);
    }
}

.datetime-toggle-btn {
    width: 48px;
    height: 48px;
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1.5px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--text-secondary);
}

.datetime-toggle-btn:hover {
    background: var(--bg-secondary);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.datetime-toggle-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg-primary);
}

.datetime-panel {
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border: 1.5px solid var(--border-color);
    border-radius: 20px;
    padding: 20px;
    box-shadow: var(--shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    animation: slideDown 0.3s ease-out;
}

.datetime-panel.hidden {
    display: none;
}

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

.datetime-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: 12px;
}

.datetime-tab {
    flex: 1;
    padding: 10px 16px;
    background: transparent;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.datetime-tab.active {
    background: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.datetime-tab-content {
    display: none;
}

.datetime-tab-content.active {
    display: block;
}

#natural-date-input {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-secondary);
    border: 1.5px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    color: var(--text-primary);
    outline: none;
    transition: all 0.3s ease;
    margin-bottom: 12px;
}

#natural-date-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

@media (prefers-color-scheme: dark) {
    #natural-date-input:focus {
        box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.05);
    }
}

.natural-suggestions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.suggestion-chip {
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.suggestion-chip:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

.datetime-inputs {
    display: flex;
    gap: 12px;
}

.glass-input {
    flex: 1;
    padding: 14px 16px;
    background: var(--bg-secondary);
    border: 1.5px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    color: var(--text-primary);
    outline: none;
    transition: all 0.3s ease;
    font-family: inherit;
}

.glass-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

@media (prefers-color-scheme: dark) {
    .glass-input:focus {
        box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.05);
    }
}

.glass-input::-webkit-calendar-picker-indicator {
    filter: invert(0.5);
    cursor: pointer;
}

@media (prefers-color-scheme: dark) {
    .glass-input::-webkit-calendar-picker-indicator {
        filter: invert(1);
    }
}

.reminder-section {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.reminder-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.reminder-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.glass-select {
    flex: 1;
    padding: 10px 14px;
    background: var(--bg-secondary);
    border: 1.5px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    color: var(--text-primary);
    outline: none;
    transition: all 0.3s ease;
    font-family: inherit;
}

.glass-select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.glass-select:focus:not(:disabled) {
    border-color: var(--accent);
}

.datetime-actions {
    display: flex;
    gap: 10px;
    margin-top: 16px;
}

.btn-secondary-small,
.btn-primary-small {
    flex: 1;
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-secondary-small {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1.5px solid var(--border-color);
}

.btn-secondary-small:hover {
    background: var(--glass-bg);
    transform: translateY(-2px);
}

.btn-primary-small {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary-small:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.add-button {
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    padding: 18px 36px;
    border-radius: 16px;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.add-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    background: var(--accent-hover);
}

.add-button:active {
    transform: translateY(-1px);
}

/* ===================================================
   TASKS CONTAINER
   =================================================== */

.tasks-container {
    min-height: 200px;
    max-height: 400px;
    overflow-y: auto;
    margin-bottom: 20px;
}

.tasks-container::-webkit-scrollbar {
    width: 8px;
}

.tasks-container::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.tasks-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    transition: background 0.3s ease;
}

.tasks-container::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

.task-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(15px);
    backdrop-filter: blur(15px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    margin-bottom: 14px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
    cursor: move;
}

.task-item.dragging {
    opacity: 0.5;
    transform: scale(0.98);
}

.task-item.drag-over {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.task-item.pinned {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, var(--glass-bg) 100%);
    border-color: var(--accent);
}

@media (prefers-color-scheme: dark) {
    .task-item.pinned {
        background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, var(--glass-bg) 100%);
    }
}

.drag-handle {
    cursor: grab;
    color: var(--text-secondary);
    opacity: 0.4;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
}

.drag-handle:active {
    cursor: grabbing;
}

.task-item:hover .drag-handle {
    opacity: 1;
}

.drag-handle svg {
    width: 16px;
    height: 16px;
}

.priority-button {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
}

.task-item:hover .priority-button {
    opacity: 1;
}

.priority-button:hover {
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent);
    transform: translateY(-50%) scale(1.1);
}

.priority-button.active {
    color: var(--accent);
    opacity: 1;
    transform: translateY(-50%) rotate(15deg);
}

.priority-button svg {
    width: 18px;
    height: 18px;
}

.task-item:hover {
    background: var(--bg-secondary);
    border-color: var(--accent);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    z-index: 2;
}

@media (prefers-color-scheme: dark) {
    .task-item:hover {
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    }
}

/* Circular Checkbox with Satisfaction Effect */
.task-checkbox {
    appearance: none;
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    border: 2.5px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
    background: transparent;
}

.task-checkbox:hover {
    border-color: var(--accent);
    transform: scale(1.1);
}

.task-checkbox:checked {
    background: var(--accent);
    border-color: var(--accent);
    animation: checkboxPop 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.task-checkbox:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    animation: checkmarkAppear 0.3s ease-out 0.1s both;
}

@keyframes checkboxPop {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.3);
        box-shadow: 0 0 0 8px rgba(37, 99, 235, 0.2);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
    }
}

@media (prefers-color-scheme: dark) {
    @keyframes checkboxPop {
        0% {
            transform: scale(1);
        }
        50% {
            transform: scale(1.3);
            box-shadow: 0 0 0 8px rgba(59, 130, 246, 0.3);
        }
        100% {
            transform: scale(1);
            box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
        }
    }
}

@keyframes checkmarkAppear {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.5);
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}

.task-text {
    flex: 1;
    min-width: 0;
    word-wrap: break-word;
    overflow-wrap: break-word;
    font-size: 16px;
    color: var(--text-primary);
    word-break: break-word;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.task-main-text {
    display: block;
    word-break: break-word;
    white-space: normal;
    overflow-wrap: break-word;
}

.task-due-date {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.task-due-date svg {
    width: 14px;
    height: 14px;
}

.task-item.completed .task-text {
    text-decoration: line-through;
    color: var(--text-secondary);
    opacity: 0.5;
}

/* Overdue Task Styling */
.task-item.overdue {
    background: rgba(220, 38, 38, 0.08);
    border-color: rgba(220, 38, 38, 0.3);
}

@media (prefers-color-scheme: dark) {
    .task-item.overdue {
        background: rgba(239, 68, 68, 0.12);
        border-color: rgba(239, 68, 68, 0.35);
    }
}

.task-item.overdue .task-text {
    color: var(--delete-text);
}

.task-item.overdue .task-due-date {
    color: var(--delete-text);
    font-weight: 600;
}

.task-item.overdue:hover {
    background: rgba(220, 38, 38, 0.12);
    border-color: rgba(220, 38, 38, 0.4);
    box-shadow: 0 4px 16px rgba(220, 38, 38, 0.15);
}

@media (prefers-color-scheme: dark) {
    .task-item.overdue:hover {
        background: rgba(239, 68, 68, 0.16);
        border-color: rgba(239, 68, 68, 0.45);
        box-shadow: 0 4px 16px rgba(239, 68, 68, 0.2);
    }
}

.overdue-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: var(--delete-bg);
    border: 1px solid var(--delete-border);
    border-radius: 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--delete-text);
    white-space: nowrap;
}

.overdue-badge svg {
    width: 14px;
    height: 14px;
}

.delete-button-circle {
    position: absolute;
    left: -8px;
    top: -8px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #ff5f57;
    border: 1px solid #e04340;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    opacity: 0;
    z-index: 10;
    padding: 0;
}

.delete-button-circle svg {
    width: 10px;
    height: 10px;
    color: #4a0000;
}

.task-item:hover .delete-button-circle {
    opacity: 1;
}

.delete-button-circle:hover {
    background: #ff4540;
    transform: scale(1.15);
    box-shadow: 0 2px 8px rgba(255, 95, 87, 0.4);
}

.delete-button-circle:active {
    transform: scale(0.95);
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
    animation: fadeIn 0.5s ease-out;
}

.empty-state p {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.empty-state small {
    font-size: 14px;
    opacity: 0.7;
}

.sync-status {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-secondary);
}

#sync-status-text {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--glass-bg);
    border-radius: 20px;
    transition: all 0.3s ease;
    font-size: 13px;
    font-weight: 500;
}

.sync-status.saving #sync-status-text {
    background: rgba(255, 193, 7, 0.1);
    color: #ffc107;
    animation: pulse 1.5s infinite;
}

.sync-status.saving #sync-status-text::before {
    content: "⏳";
}

.sync-status.synced #sync-status-text {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
}

.sync-status.synced #sync-status-text::before {
    content: "✓";
}

.sync-status.error #sync-status-text {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.sync-status.error #sync-status-text::before {
    content: "✗";
}

.sync-button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--accent);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--bg-primary);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.sync-button:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.sync-button.syncing {
    pointer-events: none;
    opacity: 0.8;
}

.sync-button.syncing svg {
    animation: rotate 1s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

#sync-status-text {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--glass-bg);
    border-radius: 20px;
    transition: all 0.3s ease;
}

.sync-status.saving #sync-status-text {
    background: rgba(255, 193, 7, 0.1);
    color: #ffc107;
    animation: pulse 1.5s infinite;
}

.sync-status.saving #sync-status-text::before {
    content: "⏳";
}

.sync-status.synced #sync-status-text {
    background: rgba(76, 175, 80, 0.1);
    color: #4caf50;
}

.sync-status.synced #sync-status-text::before {
    content: "✔️";
}

.sync-status.error #sync-status-text {
    background: rgba(244, 67, 54, 0.1);
    color: #f44336;
}

.sync-status.error #sync-status-text::before {
    content: "⚠️";
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

/* ===================================================
   iDo 2.0 - THREE-PANE LAYOUT
   =================================================== */

.three-pane-layout {
    display: grid;
    grid-template-columns: 280px 1fr 320px;
    gap: 24px;
    height: calc(100vh - 80px);
    min-height: 600px;
    padding: 0 32px 32px 32px;
}

/* ===================================================
   LEFT SIDEBAR
   =================================================== */

.left-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
    padding-right: 12px;
}

.left-sidebar::-webkit-scrollbar {
    width: 6px;
}

.left-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

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

/* Mini Month Calendar */
.mini-calendar {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
}

.mini-calendar-header {
    margin-bottom: 12px;
}

.mini-calendar-header h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}

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

.mini-calendar-day-name {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    padding: 4px 0;
}

.mini-calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.mini-calendar-day.empty {
    cursor: default;
    opacity: 0;
}

.mini-calendar-day:not(.empty):hover {
    background: var(--accent);
    color: var(--bg-primary);
}

.mini-calendar-day.today {
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 700;
}

/* Today Section */
.today-section {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
}

.today-header {
    margin-bottom: 12px;
}

.today-header h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.today-date {
    font-size: 12px;
    color: var(--text-secondary);
}

.today-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.today-empty {
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
    padding: 20px 0;
}

.today-section-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-top: 8px;
    margin-bottom: 4px;
}

.today-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    background: var(--bg-secondary);
    border-radius: 8px;
    font-size: 13px;
    transition: all 0.2s ease;
}

.today-item:hover {
    background: var(--glass-bg);
}

.today-item.event {
    border-left: 3px solid var(--accent);
}

.today-item.task {
    gap: 8px;
}

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

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

.today-item-time {
    font-size: 11px;
    font-weight: 600;
    color: var(--accent);
    white-space: nowrap;
}

.today-item-title {
    flex: 1;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.today-item.task input[type="checkbox"] {
    margin: 0;
    cursor: pointer;
}

/* Filters Section */
.filters-section {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
}

.filters-section h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.filter-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-btn {
    padding: 10px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

.filter-btn:hover {
    background: var(--glass-bg);
    border-color: var(--accent);
}

.filter-btn.active {
    background: var(--accent);
    color: var(--bg-primary);
    border-color: var(--accent);
}

/* ===================================================
   CENTER AREA - WEEKLY CALENDAR
   =================================================== */

.center-area {
    display: flex;
    flex-direction: column;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
}

.calendar-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.calendar-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.calendar-view-toggle {
    display: flex;
    gap: 8px;
    padding: 4px;
    background: var(--bg-secondary);
    border-radius: 12px;
    width: fit-content;
}

.add-event-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.add-event-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.view-toggle-btn {
    padding: 8px 20px;
    background: transparent;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.view-toggle-btn.active {
    background: var(--bg-primary);
    color: var(--text-primary);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.week-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.week-title {
    flex: 1;
    text-align: center;
}

.week-title h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.week-range {
    font-size: 12px;
    color: var(--text-secondary);
}

.week-nav-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.week-nav-btn:hover {
    background: var(--accent);
    color: var(--bg-primary);
    border-color: var(--accent);
}

.today-btn {
    padding: 8px 16px;
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.today-btn:hover {
    background: var(--accent-hover);
}

/* Calendar Grid */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1px;
    background: var(--border-color);
    flex: 1;
    overflow-y: auto;
}

.calendar-day-column {
    background: var(--bg-primary);
    min-height: 100%;
    display: flex;
    flex-direction: column;
    transition: all 0.2s ease;
}

.calendar-day-column.today {
    background: rgba(37, 99, 235, 0.03);
}

@media (prefers-color-scheme: dark) {
    .calendar-day-column.today {
        background: rgba(59, 130, 246, 0.05);
    }
}

.calendar-day-column.drag-over {
    background: rgba(37, 99, 235, 0.1);
    outline: 2px dashed var(--accent);
    outline-offset: -2px;
}

.calendar-day-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.calendar-day-name {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.calendar-day-number {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.calendar-day-column.today .calendar-day-number {
    color: var(--accent);
}

.calendar-events-container {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Calendar Events */
.calendar-event {
    padding: 10px 12px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(59, 130, 246, 0.05) 100%);
    border-left: 3px solid var(--accent);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.calendar-event:hover {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.15) 0%, rgba(59, 130, 246, 0.08) 100%);
    transform: translateX(2px);
}

.calendar-event-time {
    font-size: 11px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 4px;
}

.calendar-event-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

/* Calendar Tasks */
.calendar-task {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px 12px;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: grab;
    transition: all 0.2s ease;
}

.calendar-task:hover {
    background: var(--bg-secondary);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.calendar-task.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

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

.calendar-task-checkbox input[type="checkbox"] {
    margin: 2px 0 0 0;
    cursor: pointer;
}

.calendar-task-text {
    flex: 1;
    font-size: 13px;
    color: var(--text-primary);
    line-height: 1.4;
    word-break: break-word;
    white-space: normal;
    overflow-wrap: break-word;
}

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

/* ===================================================
   DAY VIEW
   =================================================== */

.day-view-time-column {
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
}

.day-view-time-slot {
    height: 60px;
    padding: 8px 12px;
    font-size: 11px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    text-align: right;
}

.day-view-events-column {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

.day-view-event-slot {
    min-height: 60px;
    padding: 4px 8px;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    cursor: pointer;
    transition: background 0.2s ease;
}

.day-view-event-slot:hover {
    background: var(--bg-secondary);
}

.day-view-event-slot.drag-over {
    background: rgba(37, 99, 235, 0.1);
    outline: 2px dashed var(--accent);
    outline-offset: -2px;
}

/* ===================================================
   MONTH VIEW
   =================================================== */

.month-view-day-header {
    padding: 12px;
    background: var(--bg-secondary);
    text-align: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.month-view-day-cell {
    min-height: 100px;
    padding: 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
}

.month-view-day-cell.empty {
    background: var(--bg-secondary);
    opacity: 0.3;
    cursor: default;
}

.month-view-day-cell:not(.empty):hover {
    background: var(--bg-secondary);
    transform: scale(1.02);
    z-index: 10;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.month-view-day-cell.today {
    background: rgba(37, 99, 235, 0.05);
    border-color: var(--accent);
}

.month-view-day-cell.today .month-view-day-number {
    background: var(--accent);
    color: var(--bg-primary);
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.month-view-day-number {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

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

.month-view-event,
.month-view-task {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.month-view-event {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.15) 0%, rgba(59, 130, 246, 0.1) 100%);
    color: var(--accent);
    border-left: 2px solid var(--accent);
}

.month-view-task {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-left: 2px solid var(--text-secondary);
}

.month-view-more {
    font-size: 10px;
    color: var(--text-secondary);
    margin-top: 2px;
    font-weight: 600;
}

/* ===================================================
   YEAR VIEW
   =================================================== */

.year-view-month {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    transition: all 0.2s ease;
}

.year-view-month:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.year-view-month-header {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    text-align: center;
}

.year-view-day-headers {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    margin-bottom: 8px;
}

.year-view-day-headers div {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    padding: 4px 0;
}

.year-view-days-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.year-view-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
    position: relative;
}

.year-view-day.empty {
    cursor: default;
    opacity: 0;
}

.year-view-day:not(.empty):hover {
    background: var(--accent);
    color: var(--bg-primary);
}

.year-view-day.today {
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 700;
}

.year-view-day.has-events::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: currentColor;
}

.year-view-day.has-events:not(.today)::after {
    background: var(--accent);
}

.year-view-event-dot {
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent);
}

/* ===================================================
   RIGHT SIDEBAR - TASKS PANEL
   =================================================== */

.right-sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow-y: auto;
    padding-left: 12px;
    position: relative;
}

.right-sidebar::-webkit-scrollbar {
    width: 6px;
}

.right-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

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

/* Profile Info */
.profile-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.profile-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.profile-details {
    flex: 1;
}

.profile-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.profile-email {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Tasks Sidebar Header */
.tasks-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 4px;
}

.tasks-sidebar-header h2 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
}

.add-task-btn-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.add-task-btn-icon:hover {
    background: var(--accent-hover);
    transform: scale(1.05);
}

/* Add Task Section in Sidebar */
.add-task-section-sidebar {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    animation: slideDown 0.3s ease;
}

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

/* Tasks Sections */
.tasks-section {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
}

.tasks-section h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.tasks-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tasks-list .task-item {
    padding: 12px;
    padding-right: 50px;
    background: var(--bg-secondary);
    cursor: grab;
    position: relative;
}

.tasks-list .task-item:hover {
    transform: translateY(-2px);
}

.tasks-list .task-item.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.tasks-list .empty-state {
    padding: 20px;
    font-size: 13px;
}

/* ===================================================
   BOTTOM BAR
   =================================================== */

.bottom-bar {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

/* ===================================================
   RESPONSIVE DESIGN
   =================================================== */

@media (max-width: 1200px) {
    .three-pane-layout {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .left-sidebar,
    .right-sidebar {
        display: none; /* Hide sidebars on smaller screens */
    }
    
    .center-area {
        min-height: 600px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 30px 20px;
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .user-info {
        width: 100%;
        margin-left: 0;
    }

    .header h1 {
        font-size: 24px;
    }

    .login-box h1 {
        font-size: 36px;
    }
    
    .three-pane-layout {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .calendar-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .add-task-section,
    .add-task-section-sidebar {
        gap: 12px;
    }
    
    .task-input-wrapper {
        flex-direction: row;
    }

    .add-button {
        width: 100%;
    }
    
    .datetime-inputs {
        flex-direction: column;
    }
    
    .reminder-section {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .glass-select {
        width: 100%;
    }

    .task-item {
        padding: 14px;
        flex-wrap: wrap;
    }
    
    .drag-handle {
        display: none;
    }
    
    .task-text {
        flex: 1;
        min-width: 0;
    }
    
    .priority-button {
        order: 2;
    }
    
    .overdue-badge {
        order: 3;
        width: 100%;
        margin-top: 8px;
        justify-content: center;
    }

    .delete-button {
        opacity: 1;
        order: 4;
    }
    
    .sync-status {
        flex-direction: column;
        gap: 12px;
    }
    
    .sync-button {
        width: 100%;
        justify-content: center;
    }
}

/* ===================================================
   EVENT MODAL
   =================================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.modal.hidden {
    display: none;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(30px);
    backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

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

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 28px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
}

.close-modal-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-secondary);
}

.close-modal-btn:hover {
    background: var(--delete-bg);
    border-color: var(--delete-border);
    color: var(--delete-text);
}

.modal-body {
    padding: 28px;
}

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

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

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: 500;
}

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

.recurring-options {
    margin-top: 16px;
    padding: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.modal-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.modal-actions-right {
    display: flex;
    gap: 12px;
}

.btn-delete {
    padding: 12px 24px;
    background: var(--delete-bg);
    color: var(--delete-text);
    border: 1px solid var(--delete-border);
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-delete:hover {
    background: rgba(220, 38, 38, 0.2);
    transform: translateY(-2px);
}

.btn-secondary {
    padding: 12px 24px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: var(--glass-bg);
    transform: translateY(-2px);
}

.btn-primary {
    padding: 12px 24px;
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}