:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #f97316;
    --text-color: #334155;
    --light-bg: #f8fafc;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --tag-low-energy: #84cc16;
    --tag-quick-win: #10b981;
    --tag-creative: #8b5cf6;
    --tag-focused: #0ea5e9;
    --tag-general: #94a3b8;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--light-bg);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem;
    position: relative;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.quote {
    font-style: italic;
    color: #64748b;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.mood-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.mood-selector span {
    font-weight: 500;
}

#mood-select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: 'Poppins', sans-serif;
}

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    transition: all 0.2s ease;
}

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

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

.filter-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag-filter {
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    background-color: white;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.tag-filter.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.add-task-btn {
    align-self: flex-end;
    background-color: var(--secondary-color);
    color: white;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    transition: all 0.2s ease;
}

.add-task-btn:hover {
    opacity: 0.9;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    padding: 2rem 0;
    min-height: 200px;
    position: relative;
}

.task-tag-item {
    padding: 1rem;
    background-color: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    gap: 0.5rem;
    border-top: 5px solid var(--tag-general);
}

.task-tag-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.task-tag-item.low-energy {
    border-top-color: var(--tag-low-energy);
}

.task-tag-item.quick-win {
    border-top-color: var(--tag-quick-win);
}

.task-tag-item.creative {
    border-top-color: var(--tag-creative);
}

.task-tag-item.focused {
    border-top-color: var(--tag-focused);
}

.task-title {
    font-weight: 500;
    color: var(--text-color);
}

.task-duration {
    font-size: 0.9rem;
    color: #64748b;
}

.size-s {
    width: 120px;
    height: 120px;
}

.size-m {
    width: 140px;
    height: 140px;
}

.size-l {
    width: 160px;
    height: 160px;
}

.size-xl {
    width: 180px;
    height: 180px;
}

.empty-state {
    text-align: center;
    color: #64748b;
    padding: 2rem;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.modal-content.success {
    text-align: center;
    padding: 3rem 2rem;
}

.close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="number"] {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: 'Poppins', sans-serif;
}

.tag-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-option {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
}

.mini-timer {
    display: none;
    background-color: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
    padding: 1rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.timer-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

#timer {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
}

.timer-btns {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.timer-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
}

.progress-bar {
    height: 6px;
    background-color: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    width: 0%;
    transition: width 0.3s ease;
}

#confetti-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999;
    pointer-events: none;
    display: none;
}

.loading-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-left-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.error-message {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: #ef4444;
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 1100;
    animation: fadeIn 0.3s ease;
}

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

.fade-out {
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

@media (max-width: 600px) {
    .controls {
        gap: 1.5rem;
    }
    
    .mood-selector {
        flex-direction: column;
        align-items: flex-start;
    }
    
    #mood-select {
        width: 100%;
    }
    
    .add-task-btn {
        align-self: center;
        width: 100%;
    }
    
    .task-tag-item {
        width: 100% !important;
        height: auto !important;
        padding: 1rem;
    }
}