/* Project Planner Stylesheet */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    --color-info: #3b82f6;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-gray-50);
}

/* Header */
.main-header {
    background: white;
    border-bottom: 1px solid var(--color-gray-200);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--color-gray-900);
}

.logo-icon {
    font-size: 1.5rem;
}

.header-nav {
    display: flex;
    gap: 0.5rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    text-decoration: none;
    color: var(--color-gray-600);
    border-radius: 0.375rem;
    transition: all 0.2s;
}

.nav-link:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-900);
}

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

.user-menu {
    position: relative;
}

.user-menu-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-gray-200);
    border-radius: 0.5rem;
    background: white;
    cursor: pointer;
    transition: all 0.2s;
}

.user-menu-button:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-300);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.user-menu-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: white;
    border: 1px solid var(--color-gray-200);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    display: none;
}

.user-menu-dropdown.show {
    display: block;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--color-gray-700);
    transition: background 0.2s;
}

.dropdown-item:hover {
    background: var(--color-gray-50);
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Page Header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-gray-900);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 0.5rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
}

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

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

.btn-outline {
    background: white;
    color: var(--color-gray-700);
    border-color: var(--color-gray-300);
}

.btn-outline:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-400);
}

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

.btn-sm {
    padding: 0.375rem 0.875rem;
    font-size: 0.8125rem;
}

/* Cards */
.card {
    background: white;
    border-radius: 0.75rem;
    border: 1px solid var(--color-gray-200);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: white;
    border: 1px solid var(--color-gray-200);
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
}

.project-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-gray-300);
}

.project-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.project-card-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.project-card-header h3 a {
    color: var(--color-gray-900);
    text-decoration: none;
}

.project-card-header h3 a:hover {
    color: var(--color-primary);
}

.project-description {
    color: var(--color-gray-600);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.project-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.stat-danger .stat-value {
    color: var(--color-danger);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--color-gray-200);
    border-radius: 999px;
    overflow: hidden;
    margin: 1rem 0 0.25rem;
}

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

.progress-label {
    font-size: 0.75rem;
    color: var(--color-gray-600);
    text-align: right;
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1rem 0;
    font-size: 0.875rem;
}

.meta-item {
    color: var(--color-gray-600);
}

.text-danger {
    color: var(--color-danger) !important;
}

.text-warning {
    color: var(--color-warning) !important;
}

.project-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-gray-200);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

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

.badge-completed {
    background: var(--color-gray-500);
    color: white;
}

.badge-archived {
    background: var(--color-gray-400);
    color: white;
}

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

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

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    border: 1px solid var(--color-gray-200);
    border-radius: 0.75rem;
    padding: 1.5rem;
    text-align: center;
    border-left: 4px solid var(--color-gray-300);
}

.stat-card.stat-success {
    border-left-color: var(--color-success);
}

.stat-card.stat-info {
    border-left-color: var(--color-info);
}

.stat-card.stat-danger {
    border-left-color: var(--color-danger);
}

.stat-card.stat-primary {
    border-left-color: var(--color-primary);
}

.stat-card .stat-value {
    font-size: 2rem;
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
}

.alert-success {
    background: #d1fae5;
    border-color: var(--color-success);
    color: #065f46;
}

.alert-error {
    background: #fee2e2;
    border-color: var(--color-danger);
    color: #991b1b;
}

.alert-info {
    background: #dbeafe;
    border-color: var(--color-info);
    color: #1e40af;
}

/* Forms */
.form-horizontal {
    max-width: 800px;
}

.form-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-gray-200);
}

.form-section:last-child {
    border-bottom: none;
}

.form-section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-gray-900);
}

.form-help {
    color: var(--color-gray-600);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--color-gray-700);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="date"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--color-gray-300);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.8125rem;
    color: var(--color-gray-500);
}

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

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* File Upload */
.file-upload-area {
    border: 2px dashed var(--color-gray-300);
    border-radius: 0.75rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.2s;
    cursor: pointer;
    position: relative;
}

.file-upload-area:hover {
    border-color: var(--color-primary);
    background: var(--color-gray-50);
}

.file-upload-area input[type="file"] {
    display: none !important;
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
    pointer-events: none;
}

.file-upload-hint {
    color: var(--color-gray-600);
    pointer-events: none;
}

.file-upload-hint svg {
    margin: 0 auto 1rem;
    color: var(--color-gray-400);
    pointer-events: none;
}

.file-upload-hint strong {
    color: var(--color-primary);
}

.file-upload-hint p {
    pointer-events: none;
}

.text-muted {
    color: var(--color-gray-500);
    font-size: 0.875rem;
}

/* Login Page */
.login-page {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1e3a8a 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    width: 100%;
}

.login-card {
    background: white;
    border-radius: 1rem;
    padding: 3rem;
    box-shadow: var(--shadow-lg);
}

.login-header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--color-gray-600);
    margin-bottom: 2rem;
}

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

.login-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-gray-200);
    font-size: 0.875rem;
}

.login-footer a {
    color: var(--color-primary);
    font-weight: 500;
    text-decoration: none;
}

.login-info {
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.login-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.login-info ul {
    list-style: none;
}

.login-info li {
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-state svg {
    color: var(--color-gray-300);
    margin-bottom: 1.5rem;
}

.empty-state h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--color-gray-600);
    margin-bottom: 2rem;
}

.empty-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Project Header */
.project-header {
    background: white;
    border: 1px solid var(--color-gray-200);
    border-radius: 0.75rem;
    padding: 2rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.breadcrumb {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-bottom: 0.5rem;
}

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

.project-meta-info {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.meta-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: var(--color-gray-100);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-gray-700);
}

/* Filter Bar */
.filter-bar {
    margin-bottom: 2rem;
}

.filter-bar h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

.filter-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.375rem;
}

.filter-group select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-gray-300);
    border-radius: 0.5rem;
    font-size: 0.875rem;
}

/* Tasks */
.category-section {
    margin-bottom: 2rem;
}

.category-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-gray-900);
}

.task-count {
    color: var(--color-gray-500);
    font-weight: 400;
}

.tasks-list {
    display: grid;
    gap: 1rem;
}

.task-card {
    background: white;
    border: 1px solid var(--color-gray-200);
    border-left: 4px solid var(--color-gray-400);
    border-radius: 0.5rem;
    padding: 1.5rem;
    transition: all 0.2s;
}

.task-card.status-complete {
    border-left-color: var(--color-success);
    opacity: 0.8;
}

.task-card.status-in-progress {
    border-left-color: var(--color-info);
}

.task-card.status-blocked {
    border-left-color: var(--color-danger);
}

.task-card.updating {
    opacity: 0.6;
    pointer-events: none;
}

.task-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.status-dropdown {
    padding: 0.375rem 0.5rem;
    border: 1px solid var(--color-gray-300);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    cursor: pointer;
}

.task-info {
    flex: 1;
}

.task-actions {
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 0.375rem;
    color: var(--color-gray-600);
    background: transparent;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    text-decoration: none;
    padding: 0;
}

.btn-icon:hover {
    background: var(--color-gray-100);
    color: var(--color-primary);
}

.task-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.task-badges {
    display: flex;
    gap: 0.5rem;
}

.badge-priority-1 {
    background: var(--color-danger);
    color: white;
}

.badge-priority-2 {
    background: var(--color-warning);
    color: white;
}

.badge-priority-3 {
    background: var(--color-info);
    color: white;
}

.badge-risk-critical {
    background: #7f1d1d;
    color: white;
}

.badge-risk-high {
    background: #c2410c;
    color: white;
}

.badge-risk-medium {
    background: #ca8a04;
    color: white;
}

.badge-risk-low {
    background: var(--color-gray-500);
    color: white;
}

.task-due-date {
    text-align: right;
    min-width: 120px;
}

.due-date-label {
    font-size: 0.75rem;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.due-date-value {
    font-weight: 600;
    margin: 0.25rem 0;
}

.due-date-countdown {
    font-size: 0.75rem;
    color: var(--color-gray-600);
}

.task-due-date.overdue .due-date-value,
.task-due-date.overdue .due-date-countdown {
    color: var(--color-danger);
}

.task-due-date.due-soon .due-date-value,
.task-due-date.due-soon .due-date-countdown {
    color: var(--color-warning);
}

.task-body {
    padding: 1rem 0;
}

.task-meta {
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    color: var(--color-gray-700);
}

.task-details {
    margin: 1rem 0;
    padding: 1rem;
    background: var(--color-gray-50);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-gray-700);
    line-height: 1.6;
}

.task-footer {
    padding-top: 1rem;
    border-top: 1px solid var(--color-gray-200);
    font-size: 0.8125rem;
    color: var(--color-gray-500);
}

/* Responsive */
@media (max-width: 768px) {
    .login-container {
        grid-template-columns: 1fr;
    }
    
    .login-info {
        display: none;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .project-header {
        flex-direction: column;
    }
    
    .project-header-actions {
        width: 100%;
        display: flex;
        gap: 0.5rem;
    }
}