/* ============================================
   Email Outreach App - Clean Minimal Styles
   ============================================ */

/* CSS Variables for consistent theming */
:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #3b82f6;
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-danger: #ef4444;
    --color-danger-dark: #dc2626;
    
    --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 -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    
    --radius-sm: 6px;
    --radius: 8px;
    --radius-lg: 12px;
    
    --transition: all 0.2s ease;
}

/* ============================================
   Base & Reset
   ============================================ */
* {
    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);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   Header & Navigation
   ============================================ */
header {
    background: #fff;
    border-bottom: 1px solid var(--color-gray-200);
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.025em;
}

header nav {
    display: flex;
    gap: 1.5rem;
    margin-top: 0.75rem;
}

header nav a {
    color: var(--color-gray-600);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.25rem 0;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

header nav a:hover {
    color: var(--color-primary);
}

header nav a.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* ============================================
   Main Content & Cards
   ============================================ */
main {
    background: #fff;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--color-gray-200);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-gray-100);
}

.card-header h3 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-800);
}

/* ============================================
   Typography
   ============================================ */
h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-gray-900);
    letter-spacing: -0.025em;
}

h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 1.5rem 0 1rem;
    color: var(--color-gray-800);
}

h4 {
    font-size: 1rem;
    font-weight: 600;
    margin: 1rem 0 0.75rem;
    color: var(--color-gray-700);
}

p {
    margin-bottom: 1rem;
    color: var(--color-gray-600);
}

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

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

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

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

.btn-secondary {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    border: 1px solid var(--color-gray-200);
}

.btn-secondary:hover {
    background: var(--color-gray-200);
}

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

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

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

.btn-success:hover {
    background: #059669;
}

.btn-small {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

.btn-icon {
    padding: 0.5rem;
    background: transparent;
    color: var(--color-gray-500);
}

.btn-icon:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ============================================
   Forms
   ============================================ */
.form {
    max-width: 640px;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-gray-700);
    font-size: 0.95rem;
}

.form-group small {
    display: block;
    margin-top: 0.375rem;
    color: var(--color-gray-500);
    font-size: 0.875rem;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="file"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    font-size: 1rem;
    color: var(--color-gray-800);
    background: #fff;
    transition: var(--transition);
}

.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 input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-gray-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group input[type="checkbox"] {
    margin-right: 0.5rem;
    width: auto;
}

.form-group.checkbox label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 400;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-gray-200);
}

/* ============================================
   Tables
   ============================================ */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--color-gray-200);
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.95rem;
}

.data-table th,
.data-table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
}

.data-table th {
    font-weight: 600;
    background: var(--color-gray-50);
    color: var(--color-gray-700);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    border-bottom: 2px solid var(--color-gray-200);
}

.data-table tbody tr:hover {
    background: var(--color-gray-50);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* ============================================
   Status Badges
   ============================================ */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.status-created { 
    background: var(--color-gray-100); 
    color: var(--color-gray-700); 
}
.status-profiling { 
    background: #dbeafe; 
    color: #1e40af; 
}
.status-awaiting_schema_review,
.status-awaiting_campaign_approval { 
    background: var(--color-warning-light); 
    color: #92400e; 
}
.status-running { 
    background: var(--color-success-light); 
    color: #065f46; 
}
.status-paused { 
    background: #fef3c7; 
    color: #92400e; 
}
.status-completed { 
    background: var(--color-success-light); 
    color: #065f46; 
}
.status-failed { 
    background: #fee2e2; 
    color: #991b1b; 
}
.status-cancelled { 
    background: var(--color-gray-100); 
    color: var(--color-gray-500); 
}
.status-awaiting_review {
    background: var(--color-warning-light);
    color: #92400e;
}
.status-sent {
    background: var(--color-success-light);
    color: #065f46;
}

/* ============================================
   Alerts & Messages
   ============================================ */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin: 1rem 0;
    border: 1px solid transparent;
}

.alert-success {
    background: var(--color-success-light);
    color: #065f46;
    border-color: #a7f3d0;
}

.alert-warning {
    background: var(--color-warning-light);
    color: #92400e;
    border-color: #fde68a;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border-color: #fecaca;
}

.alert-info {
    background: #eff6ff;
    color: #1e40af;
    border-color: #bfdbfe;
}

/* Legacy class names for backward compatibility */
.success { @extend .alert-success; }
.warning { @extend .alert-warning; }
.error { @extend .alert-error; }

/* ============================================
   Progress Bars
   ============================================ */
.progress-container {
    margin: 1.5rem 0;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--color-gray-200);
    border-radius: 9999px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    transition: width 0.3s ease;
    border-radius: 9999px;
}

.progress-text {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

/* ============================================
   Page Header
   ============================================ */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--color-gray-200);
}

.page-header h2 {
    margin-bottom: 0;
}

.page-header .actions {
    display: flex;
    gap: 0.75rem;
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--color-gray-500);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    color: var(--color-gray-700);
    margin-bottom: 0.5rem;
}

.empty-state p {
    margin-bottom: 1.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   Info Sections
   ============================================ */
.info-section {
    background: #eff6ff;
    padding: 1.5rem;
    border-radius: var(--radius);
    margin: 1.5rem 0;
    border: 1px solid #dbeafe;
}

.info-section h3 {
    margin-top: 0;
    color: #1e40af;
}

.info-section ul {
    margin: 0.75rem 0 0 1.5rem;
}

.info-section li {
    margin: 0.5rem 0;
    color: #374151;
}

/* ============================================
   Modal
   ============================================ */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: #fff;
    margin: 5% auto;
    padding: 0;
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 700px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-gray-200);
}

.modal-header h3 {
    margin: 0;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-gray-200);
    background: var(--color-gray-50);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-gray-400);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

/* ============================================
   Draft/Email Preview
   ============================================ */
.draft-card {
    background: #fff;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.draft-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-gray-100);
}

.draft-content pre {
    background: var(--color-gray-50);
    padding: 1rem;
    border-radius: var(--radius);
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: inherit;
    line-height: 1.6;
    border: 1px solid var(--color-gray-200);
    font-size: 0.95rem;
}

/* ============================================
   Pagination
   ============================================ */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-gray-200);
}

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

.pagination-buttons {
    display: flex;
    gap: 0.375rem;
}

/* ============================================
   Footer
   ============================================ */
footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--color-gray-500);
    font-size: 0.875rem;
}

/* ============================================
   Utility Classes
   ============================================ */
.text-muted { color: var(--color-gray-500); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }

.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }