/* NAV Package Automation Tool - Styles */
:root {
    --primary: #1a56db;
    --primary-dark: #1240a8;
    --primary-light: #e8effc;
    --success: #059669;
    --success-light: #d1fae5;
    --warning: #d97706;
    --warning-light: #fef3c7;
    --danger: #dc2626;
    --danger-light: #fee2e2;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
}

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

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

/* Navbar */
.navbar {
    background: var(--gray-900);
    color: white;
    padding: 0 2rem;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-md);
}

.nav-brand a {
    color: white;
    text-decoration: none;
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.025em;
}

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

.nav-links a {
    color: var(--gray-300);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.15s;
}

.nav-links a:hover {
    color: white;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem;
}

/* Flash Messages */
.flash-messages {
    margin-bottom: 1.5rem;
}

.flash {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.flash-error {
    background: var(--danger-light);
    color: var(--danger);
    border: 1px solid #fecaca;
}

.flash-success {
    background: var(--success-light);
    color: var(--success);
    border: 1px solid #a7f3d0;
}

.flash-warning {
    background: var(--warning-light);
    color: var(--warning);
    border: 1px solid #fde68a;
}

/* Page Header */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.page-header p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* Cards */
.card {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-50);
}

.card-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
}

.card-body {
    padding: 1.5rem;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.dashboard-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 2rem;
    text-decoration: none;
    transition: all 0.15s;
}

.dashboard-action:hover {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.dashboard-action .icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.dashboard-action h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.dashboard-action p {
    color: var(--gray-500);
    font-size: 0.8125rem;
    text-align: center;
}

/* Previous Projects */
.projects-list {
    margin-top: 1.5rem;
}

.project-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--gray-100);
    transition: background 0.1s;
}

.project-item:last-child {
    border-bottom: none;
}

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

.project-info h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.125rem;
}

.project-info p {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.project-actions {
    display: flex;
    gap: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}

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

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

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

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

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

.btn-success:hover {
    background: #047857;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.375rem;
}

.form-group .hint {
    font-size: 0.75rem;
    color: var(--gray-400);
    font-weight: 400;
}

.form-control {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 0.875rem;
    color: var(--gray-800);
    background: white;
    transition: border 0.15s, box-shadow 0.15s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

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

.file-upload {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.15s;
    position: relative;
}

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

.file-upload input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

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

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

/* Mapping Screen */
.mapping-container {
    margin-top: 1.5rem;
}

.tab-nav {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--gray-200);
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

.tab-btn {
    padding: 0.625rem 1rem;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--gray-500);
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.15s;
}

.tab-btn:hover {
    color: var(--gray-700);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

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

.mapping-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8125rem;
}

.mapping-table th {
    text-align: left;
    padding: 0.625rem 0.75rem;
    font-weight: 600;
    color: var(--gray-600);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mapping-table td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}

.mapping-table tr:hover td {
    background: var(--gray-50);
}

.confidence-badge {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.confidence-exact {
    background: var(--success-light);
    color: var(--success);
}

.confidence-close {
    background: var(--warning-light);
    color: var(--warning);
}

.confidence-none {
    background: var(--danger-light);
    color: var(--danger);
}

.mapping-select {
    padding: 0.375rem 0.5rem;
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    font-size: 0.8125rem;
    min-width: 200px;
    max-width: 300px;
}

.section-header {
    padding: 0.75rem;
    background: var(--primary-light);
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--primary-dark);
    border-bottom: 1px solid var(--gray-200);
}

.section-header .section-meta {
    font-weight: 400;
    color: var(--gray-500);
    margin-left: 0.5rem;
}

/* Execute Page */
.execute-container {
    max-width: 640px;
    margin: 0 auto;
}

.execute-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-item {
    padding: 1rem;
    background: var(--gray-50);
    border-radius: 6px;
}

.info-item .label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.info-item .value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
}

.progress-container {
    margin: 2rem 0;
    display: none;
}

.progress-bar {
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    text-align: center;
    margin-top: 0.75rem;
    font-size: 0.875rem;
    color: var(--gray-500);
}

.result-container {
    display: none;
    text-align: center;
    padding: 2rem;
}

.result-success {
    color: var(--success);
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.result-error {
    color: var(--danger);
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.execute-actions {
    text-align: center;
    margin-top: 1.5rem;
}

/* Utilities */
.text-center { text-align: center; }
.text-muted { color: var(--gray-500); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--gray-400);
}

.empty-state p {
    margin-top: 0.5rem;
    font-size: 0.875rem;
}

/* Login Page */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 56px - 4rem);
}

.login-card {
    width: 100%;
    max-width: 400px;
}

.login-card .card-body {
    padding: 2.5rem;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    text-align: center;
    margin-bottom: 0.25rem;
}

.login-subtitle {
    text-align: center;
    color: var(--gray-500);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

.login-btn {
    width: 100%;
    justify-content: center;
    margin-top: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

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

    .execute-info {
        grid-template-columns: 1fr;
    }
}