/* KeepItGoing - Main Stylesheet */

/* CSS Variables */
:root {
    --primary-color: #3B82F6;
    --primary-hover: #2563EB;
    --secondary-color: #6B7280;
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;
    --background-color: #F3F4F6;
    --card-background: #FFFFFF;
    --text-color: #1F2937;
    --text-muted: #6B7280;
    --border-color: #E5E7EB;
    --border-radius: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Base */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.5;
    min-height: 100vh;
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Navbar */
.navbar {
    background-color: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand a {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
    text-decoration: none;
}

.nav-user {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Cards */
.card {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    text-decoration: none;
}

.btn-secondary {
    background-color: var(--background-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
    text-decoration: none;
}

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

.btn-danger:hover {
    background-color: #DC2626;
}

.btn-full {
    width: 100%;
}

.btn-small {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group small {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-label input {
    width: auto;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}

.alert-error {
    background-color: #FEE2E2;
    color: #991B1B;
    border: 1px solid #FECACA;
}

.alert-success {
    background-color: #D1FAE5;
    color: #065F46;
    border: 1px solid #A7F3D0;
}

/* Auth Pages */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
}

.auth-card {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    width: 100%;
    max-width: 400px;
}

.auth-card h1 {
    margin-bottom: 1.5rem;
    text-align: center;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-muted);
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.page-header h1 {
    font-size: 1.5rem;
}

/* Task List */
.task-section {
    margin-bottom: 2rem;
}

.section-title {
    font-size: 1rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.section-overdue {
    color: var(--danger-color);
}

.task-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.task-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: 1rem;
    box-shadow: var(--shadow);
    border-left: 4px solid transparent;
}

.task-item.priority-urgent {
    border-left-color: var(--danger-color);
}

.task-item.priority-high {
    border-left-color: var(--warning-color);
}

.task-item.priority-medium {
    border-left-color: var(--primary-color);
}

.task-item.priority-low {
    border-left-color: var(--secondary-color);
}

.task-item.task-overdue {
    background-color: #FEF2F2;
}

.task-checkbox {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    background: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.task-checkbox.checked {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

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

.task-title {
    font-weight: 500;
    color: var(--text-color);
    display: block;
    margin-bottom: 0.25rem;
}

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

.task-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.task-due {
    color: var(--text-muted);
}

.task-due.overdue {
    color: var(--danger-color);
    font-weight: 500;
}

.task-group,
.task-tag {
    padding: 0.125rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
}

.task-priority {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius);
}

.priority-urgent {
    color: var(--danger-color);
}

.priority-high {
    color: var(--warning-color);
}

.priority-medium {
    color: var(--primary-color);
}

.priority-low {
    color: var(--secondary-color);
}

/* Quick Add */
.quick-add-form {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.quick-add-form input[type="text"] {
    flex: 1;
    min-width: 200px;
}

.quick-add-form input[type="date"],
.quick-add-form select {
    width: auto;
}

/* Timer */
.timer-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--primary-color);
    color: white;
}

.timer-display {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: monospace;
}

/* Filters */
.filter-form {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-form select {
    width: auto;
    min-width: 150px;
}

/* Groups */
.group-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.group-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.group-description {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.group-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.group-actions {
    margin-top: 0.5rem;
}

/* Tags */
.tag-select {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* Empty State */
.empty-state {
    color: var(--text-muted);
    text-align: center;
    padding: 2rem;
}

/* Time Entries */
.time-entries {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.time-entry {
    display: flex;
    gap: 0.5rem;
    padding: 0.5rem;
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
}

.time-total {
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Utilities */
.inline-form {
    display: inline;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        order: 3;
    }

    .page-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}