/* SMTP Mailing Application Styles */
/* DRY Theme Variables - Light Mode (Default) */
:root {
    /* Primary Colors */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    
    /* Status Colors */
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    
    /* Background & Surface */
    --bg-color: #f1f5f9;
    --bg-secondary: #e2e8f0;
    --card-bg: #ffffff;
    --card-hover: #f8fafc;
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    
    /* Borders & Dividers */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Shadows */
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    
    /* Input Styling */
    --input-bg: #ffffff;
    --input-border: #cbd5e1;
    --input-focus: rgba(37, 99, 235, 0.1);
    
    /* Spacing (DRY Units) */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition: all 0.2s ease-in-out;
    --transition-fast: all 0.15s ease-in-out;
    --transition-slow: all 0.3s ease-in-out;
    
    /* Font Sizes */
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-2xl: 1.5rem;
    --font-3xl: 1.875rem;
}

.campaign-preview-text {
    color: var(--text-secondary);
    font-size: var(--font-sm);
    margin: var(--space-sm) 0;
}

.preflight-panel {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--card-hover);
    padding: var(--space-md);
    margin: var(--space-md) 0;
}

.preflight-panel h4 {
    margin: 0 0 var(--space-sm);
}

.preflight-panel ul {
    margin: 0;
    padding-left: var(--space-lg);
}

.preflight-panel li {
    margin: var(--space-xs) 0;
}

.preflight-panel li.passed {
    color: var(--success-color);
}

.preflight-panel li.warning {
    color: var(--warning-color);
}

.preflight-panel li.error {
    color: var(--danger-color);
}

/* Dark Mode Theme */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-color: #0f172a;
        --bg-secondary: #1e293b;
        --card-bg: #1e293b;
        --card-hover: #334155;
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-tertiary: #94a3b8;
        --border-color: #334155;
        --border-light: #1e293b;
        --input-bg: #1e293b;
        --input-border: #475569;
        --input-focus: rgba(37, 99, 235, 0.2);
        --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    }
}

/* Force Dark Mode */
[data-theme="dark"] {
    --bg-color: #0f172a;
    --bg-secondary: #1e293b;
    --card-bg: #1e293b;
    --card-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --border-color: #334155;
    --border-light: #1e293b;
    --input-bg: #1e293b;
    --input-border: #475569;
    --input-focus: rgba(37, 99, 235, 0.2);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

/* Force Light Mode */
[data-theme="light"] {
    --bg-color: #f1f5f9;
    --bg-secondary: #e2e8f0;
    --card-bg: #ffffff;
    --card-hover: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --input-bg: #ffffff;
    --input-border: #cbd5e1;
    --input-focus: rgba(37, 99, 235, 0.1);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition);
}

html {
    scroll-behavior: smooth;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 0.5rem;
    height: 0.5rem;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-md);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-md) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    flex: 1;
    min-width: 0;
}

.logo h1 {
    font-size: var(--font-2xl);
    color: var(--primary-color);
    white-space: nowrap;
}

.logo-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-md);
    color: inherit;
    text-decoration: none;
    min-width: 0;
}

.logo-image {
    width: 48px;
    height: 48px;
    object-fit: contain;
    flex-shrink: 0;
}

.logo-copy {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.logo-company {
    color: var(--text-secondary);
    font-size: var(--font-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    align-items: center;
}

.nav-btn {
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    transition: var(--transition);
    white-space: nowrap;
}

.nav-btn:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

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

/* Header icon/text actions (theme toggle, sign out — not .theme-toggle to avoid password-manager overlays) */
.theme-toggle,
.header-logout-btn {
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-primary);
    cursor: pointer;
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
}

.header-logout-btn {
    min-width: auto;
    white-space: nowrap;
}

.header-logout-form {
    display: inline;
    margin: 0;
    padding: 0;
    border: 0;
    vertical-align: middle;
}

.theme-toggle:hover,
.header-logout-btn:hover {
    background-color: var(--bg-secondary);
    border-color: var(--primary-color);
}

/* Hamburger Menu */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: var(--font-lg);
    padding: var(--space-sm);
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: var(--space-lg);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.app-footer {
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    gap: var(--space-xl);
    padding: var(--space-lg);
    margin-top: auto;
    transition: var(--transition);
}

.footer-brand {
    max-width: 320px;
}

.footer-brand-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-md);
    color: inherit;
    text-decoration: none;
}

.footer-logo {
    width: 44px;
    height: 44px;
    object-fit: contain;
    flex-shrink: 0;
}

.footer-brand strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: var(--space-xs);
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: var(--font-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(180px, 1fr));
    gap: var(--space-lg);
    width: 100%;
    max-width: 560px;
}

.footer-link-group h3 {
    color: var(--text-primary);
    font-size: var(--font-sm);
    margin-bottom: var(--space-sm);
}

.footer-link-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.footer-link-list a {
    color: var(--text-secondary);
    font-size: var(--font-sm);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-link-list a:hover {
    color: var(--primary-color);
}

.section {
    display: none;
}

.section.active {
    display: block;
    animation: fadeIn 0.2s ease-in-out;
}

.section h2 {
    margin-bottom: var(--space-lg);
    font-size: var(--font-3xl);
    color: var(--text-primary);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    gap: var(--space-md);
    flex-wrap: wrap;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.stat-card {
    background: var(--card-bg);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-card h3 {
    font-size: var(--font-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

/* Dashboard Sections */
.dashboard-section {
    background: var(--card-bg);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: var(--space-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.dashboard-section:hover {
    box-shadow: var(--shadow-md);
}

.dashboard-section h3 {
    margin-bottom: var(--space-md);
    font-size: var(--font-lg);
    color: var(--text-primary);
}

.quick-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: var(--space-sm) var(--space-md);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-sm);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    min-height: 40px;
    font-weight: 500;
    white-space: nowrap;
    user-select: none;
}

.btn:active {
    transform: scale(0.98);
}

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

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

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-secondary:hover {
    background-color: #475569;
    box-shadow: var(--shadow-md);
}

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

.btn-danger:hover {
    background-color: #dc2626;
    box-shadow: var(--shadow-md);
}

.btn-small {
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-xs);
    min-height: 32px;
}

/* Tables */
.table-container {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.table-container:hover {
    box-shadow: var(--shadow-md);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-sm);
}

.data-table th {
    background-color: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
    position: sticky;
    top: 0;
    z-index: 10;
}

.data-table tbody tr {
    transition: var(--transition);
}

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

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

/* Filter Bar */
.filter-bar {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.filter-bar input,
.filter-bar select {
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--input-border);
    background-color: var(--input-bg);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    transition: var(--transition);
    min-height: 40px;
}

.filter-bar input {
    flex: 1;
    min-width: 200px;
}

.filter-bar input:focus,
.filter-bar select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--input-focus);
}

/* Templates Grid */
.templates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.template-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: var(--space-lg);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.template-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--primary-color);
}

.template-card h3 {
    margin-bottom: var(--space-sm);
    font-size: var(--font-base);
    color: var(--text-primary);
}

.template-card .category {
    font-size: var(--font-xs);
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
}

.template-card .subject {
    font-size: var(--font-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    word-break: break-word;
}

.template-card .actions {
    display: flex;
    gap: var(--space-sm);
}

/* Campaigns List */
.campaigns-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.campaign-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: var(--space-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.campaign-card:hover {
    box-shadow: var(--shadow-md);
}

.campaign-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
    gap: var(--space-md);
    flex-wrap: wrap;
}

.campaign-header h3 {
    font-size: var(--font-lg);
    color: var(--text-primary);
}

.campaign-meta {
    display: flex;
    gap: var(--space-lg);
    font-size: var(--font-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.campaign-progress {
    margin-bottom: var(--space-md);
}

.progress-bar {
    height: 0.5rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: var(--space-sm);
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s ease-in-out;
    border-radius: var(--radius-sm);
}

.campaign-actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.status-draft {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
}

.status-sending {
    background-color: rgba(59, 130, 246, 0.2);
    color: var(--info-color);
}

.status-completed {
    background-color: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

.status-partial {
    background-color: rgba(245, 158, 11, 0.2);
    color: var(--warning-color);
}

.status-failed {
    background-color: rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
}

.status-success {
    background-color: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    overflow: auto;
    padding: var(--space-md);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: auto;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.modal-content.modal-large {
    max-width: 800px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

.modal-header h2 {
    margin: 0;
    font-size: var(--font-xl);
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    font-size: var(--font-lg);
    cursor: pointer;
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.close-btn:hover {
    color: var(--text-primary);
    background-color: var(--bg-color);
}

.modal-body {
    padding: var(--space-lg);
}

/* Forms */
.form-group {
    margin-bottom: var(--space-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 500;
    font-size: var(--font-sm);
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--input-border);
    background-color: var(--input-bg);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    font-family: inherit;
    transition: var(--transition);
    min-height: 40px;
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

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

.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 var(--input-focus);
}

.attachment-input {
    padding: var(--space-sm) !important;
    border: 1px dashed var(--border-color) !important;
    border-radius: var(--radius-md) !important;
    background: var(--bg-secondary) !important;
    cursor: pointer;
}

.attachment-input:hover {
    border-color: var(--primary-color) !important;
}

.form-group small {
    display: block;
    margin-top: var(--space-xs);
    color: var(--text-secondary);
    font-size: 0.85em;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
    margin-top: var(--space-lg);
    flex-wrap: wrap;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-color);
}

/* Tabs */
.tabs-container {
    width: 100%;
}

.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--space-md);
    gap: var(--space-sm);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab-btn {
    padding: var(--space-md) var(--space-lg);
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: var(--font-sm);
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
    font-weight: 500;
}

.tab-btn:hover {
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.2s ease-in-out;
}

/* Send Emails modal */
#mailing-modal.active {
    align-items: flex-start;
}

#mailing-modal .modal-content.modal-large {
    width: min(96vw, 1120px);
    max-width: 1120px;
    max-height: calc(100vh - (var(--space-md) * 2));
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#mailing-modal .modal-body {
    overflow-y: auto;
}

#mailing-modal .tabs {
    flex-wrap: wrap;
    overflow: visible;
    gap: var(--space-xs);
}

#mailing-modal .tab-btn {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

#mailing-modal .mailing-form {
    display: grid;
    gap: var(--space-md);
}

#mailing-modal .mailing-form .form-group {
    margin-bottom: 0;
}

/* Checkbox List */
.checkbox-list {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    background-color: var(--bg-secondary);
}

.checkbox-item {
    display: flex;
    align-items: center;
    padding: var(--space-md);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.checkbox-item:hover {
    background-color: var(--card-bg);
}

.checkbox-item input {
    margin-right: var(--space-md);
    cursor: pointer;
    width: 18px;
    height: 18px;
}

.checkbox-item span {
    flex: 1;
}

/* Preview */
.preview-subject {
    font-weight: 600;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-lg);
    color: var(--text-primary);
}

.preview-content {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    min-height: 300px;
    background: var(--input-bg);
    color: var(--text-primary);
    overflow-y: auto;
    max-height: 400px;
}

.preview-content img,
.preview-pane img,
.ql-editor img {
    display: block;
    max-width: 100%;
    max-height: 320px;
    width: auto;
    height: auto;
    margin: var(--space-sm) auto;
    object-fit: contain;
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    z-index: 2000;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    pointer-events: none;
}

.toast {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    color: white;
    animation: slideIn 0.3s ease-out;
    box-shadow: var(--shadow-lg);
    display: block;
    pointer-events: auto;
    word-break: break-word;
}

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

.toast.error {
    background-color: var(--danger-color);
}

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

.toast.info {
    background-color: var(--info-color);
}

.toast.hide {
    animation: slideOut 0.3s ease-in forwards;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem var(--space-md);
    color: var(--text-secondary);
    font-style: italic;
}

/* Recent Logs */
.recent-logs {
    max-height: 400px;
    overflow-y: auto;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.log-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-sm);
    gap: var(--space-md);
}

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

.log-status {
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-xs);
    font-weight: 600;
}

/* ===============================================
   RESPONSIVE DESIGN - Mobile First Approach
   =============================================== */

/* Extra Small Devices (< 480px) */
@media (max-width: 479px) {
    :root {
        --space-lg: 1rem;
        --space-xl: 1.25rem;
        --font-2xl: 1.25rem;
        --font-3xl: 1.5rem;
    }

    .app-container {
        min-height: 100vh;
    }

    .header {
        padding: var(--space-md);
        gap: var(--space-md);
    }

    .header-left {
        gap: var(--space-md);
    }

    .logo h1 {
        font-size: var(--font-xl);
    }

    .logo-link {
        gap: var(--space-sm);
    }

    .logo-image {
        width: 40px;
        height: 40px;
    }

    .logo-company {
        font-size: 0.625rem;
    }

    .menu-toggle {
        display: flex;
    }

    .nav {
        width: 100%;
        flex-direction: column;
        gap: var(--space-xs);
        display: none;
    }

    .nav.active {
        display: flex;
    }

    .nav-btn {
        width: 100%;
        justify-content: center;
        padding: var(--space-md);
    }

    .main-content {
        padding: var(--space-md);
    }

    .app-footer {
        flex-direction: column;
        gap: var(--space-lg);
        padding: var(--space-md);
    }

    .footer-brand,
    .footer-links {
        max-width: none;
        width: 100%;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .section h2 {
        font-size: var(--font-xl);
        margin-bottom: var(--space-md);
    }

    .section-header {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .section-header button {
        width: 100%;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }

    .stat-card {
        padding: var(--space-md);
    }

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

    .dashboard-section {
        padding: var(--space-md);
        margin-bottom: var(--space-md);
    }

    .quick-actions {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .quick-actions .btn {
        width: 100%;
    }

    .filter-bar {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .filter-bar input,
    .filter-bar select {
        width: 100%;
    }

    .table-container {
        overflow-x: auto;
    }

    .data-table {
        font-size: var(--font-xs);
    }

    .data-table th,
    .data-table td {
        padding: var(--space-sm);
    }

    .templates-grid {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }

    .template-card {
        padding: var(--space-md);
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        min-height: 44px;
        font-size: 16px;
    }

    .form-actions {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .form-actions .btn {
        width: 100%;
    }

    .tabs {
        overflow-x: auto;
        gap: 0;
        padding: 0;
        -webkit-overflow-scrolling: touch;
    }

    .tab-btn {
        padding: var(--space-md) var(--space-md);
        font-size: var(--font-xs);
        flex-shrink: 0;
    }

    .modal-content {
        width: 95%;
        max-width: 100%;
    }

    .campaign-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .campaign-actions {
        width: 100%;
    }

    .campaign-actions .btn {
        flex: 1;
        minimum-height: 40px;
    }

    #toast-container {
        right: var(--space-sm);
        left: var(--space-sm);
        width: auto;
        max-width: none;
    }

    .checkbox-list {
        max-height: 250px;
    }
}

/* Small Devices (480px - 767px) */
@media (min-width: 480px) and (max-width: 767px) {
    :root {
        --space-lg: 1.25rem;
        --space-xl: 1.5rem;
    }

    .header {
        padding: var(--space-md) var(--space-lg);
    }

    .logo h1 {
        font-size: var(--font-xl);
    }

    .logo-image {
        width: 44px;
        height: 44px;
    }

    .menu-toggle {
        display: flex;
    }

    .nav {
        width: 100%;
        flex-direction: column;
        gap: var(--space-xs);
        display: none;
    }

    .nav.active {
        display: flex;
    }

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

    .main-content {
        padding: var(--space-lg);
    }

    .app-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-links {
        grid-template-columns: 1fr;
        max-width: none;
    }

    .section h2 {
        font-size: var(--font-2xl);
        margin-bottom: var(--space-lg);
    }

    .section-header {
        flex-direction: column;
        gap: var(--space-md);
    }

    .section-header button {
        width: 100%;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .templates-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .quick-actions {
        flex-direction: column;
        gap: var(--space-md);
    }

    .quick-actions .btn {
        width: 100%;
    }

    .campaign-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .campaign-actions {
        flex-wrap: wrap;
        width: 100%;
    }
}

/* Medium Devices (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .header {
        flex-wrap: nowrap;
    }

    .header-left {
        gap: var(--space-lg);
    }

    .header-right {
        gap: var(--space-md);
    }

    .nav {
        gap: var(--space-sm);
    }

    .nav-btn {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-xs);
    }

    .main-content {
        padding: var(--space-lg);
    }

    .app-footer {
        align-items: flex-start;
    }

    .footer-links {
        max-width: 100%;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .templates-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .campaign-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .modal-content {
        max-width: 90%;
    }

    .modal-content.modal-large {
        max-width: 90%;
    }
}

/* Large Devices (1024px - 1439px) */
@media (min-width: 1024px) and (max-width: 1439px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-md);
    }

    .templates-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .form-row {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-md);
    }
}

/* Extra Large Devices (1440px+) */
@media (min-width: 1440px) {
    .main-content {
        max-width: 1600px;
    }

    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-lg);
    }

    .templates-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-lg);
    }
}

/* Tablet Landscape Optimization */
@media (min-width: 768px) {
    .menu-toggle {
        display: none;
    }

    .nav {
        width: auto;
        flex-direction: row;
        display: flex !important;
    }
}

/* Touch Device Optimization */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 48px;
        min-width: 48px;
    }

    .nav-btn {
        min-height: 48px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        min-height: 44px;
        font-size: 16px;
    }

    .stat-card:hover,
    .template-card:hover,
    .campaign-card:hover {
        transform: none;
    }
}

/* Print Styles */
@media print {
    .header,
    .modal,
    .btn {
        display: none !important;
    }

    .main-content {
        padding: 0;
        max-width: 100%;
    }

    .section {
        page-break-inside: avoid;
    }
}

/* High Resolution Displays */
@media (min-device-pixel-ratio: 2) {
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Reduced Motion Preferences */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dashboard login */
.login-page-body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg-color);
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--space-xl);
}

.login-logo {
    margin-bottom: var(--space-lg);
}

.login-logo .logo-link {
    text-decoration: none;
    color: inherit;
}

.login-lead {
    color: var(--text-secondary);
    font-size: var(--font-sm);
    margin: 0 0 var(--space-lg);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.login-label {
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.login-input {
    width: 100%;
    box-sizing: border-box;
    padding: var(--space-md);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: var(--font-base);
}

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

.login-error {
    color: var(--danger-color);
    font-size: var(--font-sm);
    margin: 0;
}

.login-submit {
    margin-top: var(--space-md);
    width: 100%;
    justify-content: center;
}

/* ── Quill Editor ── */

.editor-with-preview {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-md);
    min-height: 300px;
}

.editor-pane {
    min-height: 300px;
    min-width: 0;
}

.content-editor-quill {
    min-width: 0;
}

.editor-pane .ql-toolbar.ql-snow {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    align-items: center;
}

.editor-pane .ql-container {
    min-height: 260px;
    font-size: var(--font-base);
}

.editor-pane .ql-editor {
    min-height: 220px;
}

.preview-pane {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: auto;
    padding: var(--space-md);
    min-height: 300px;
    min-width: 0;
}

.preview-label {
    font-size: var(--font-xs);
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    font-weight: 600;
    text-transform: uppercase;
}

@media (max-width: 900px) {
    #mailing-modal .editor-with-preview {
        grid-template-columns: 1fr;
    }

    #mailing-modal .editor-pane,
    #mailing-modal .preview-pane {
        min-height: 240px;
    }

    #mailing-modal .modal-body {
        padding: var(--space-md);
    }
}

/* Quill dark mode overrides */
[data-theme="dark"] .ql-toolbar.ql-snow,
[data-theme="dark"] .ql-container.ql-snow {
    border-color: var(--border-color);
}

[data-theme="dark"] .ql-toolbar.ql-snow {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

[data-theme="dark"] .ql-container.ql-snow {
    background: var(--input-bg);
    color: var(--text-primary);
}

[data-theme="dark"] .ql-editor {
    color: var(--text-primary);
}

[data-theme="dark"] .ql-snow .ql-stroke {
    stroke: var(--text-secondary);
}

[data-theme="dark"] .ql-snow .ql-fill {
    fill: var(--text-secondary);
}

[data-theme="dark"] .ql-snow .ql-picker-label {
    color: var(--text-secondary);
}

[data-theme="dark"] .ql-snow .ql-picker-options {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .preview-pane {
    background: #1e1e2e;
    color: var(--text-primary);
}

/* ── Analytics ── */

.analytics-stats {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.analytics-charts {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin: var(--space-lg) 0;
}

.chart-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    border: 1px solid var(--border-color);
}

.chart-container h3 {
    margin-top: 0;
    margin-bottom: var(--space-md);
}

.chart-container canvas {
    max-height: 300px;
}

/* ── Webhooks ── */

.webhook-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
}

.webhook-info h4 {
    margin: 0 0 var(--space-xs) 0;
    word-break: break-all;
}

.webhook-events {
    font-size: var(--font-sm);
    color: var(--text-secondary);
    margin: 0;
}

.webhook-actions {
    display: flex;
    gap: var(--space-xs);
    flex-shrink: 0;
}

/* ── Import Modal ── */

.import-info {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-md);
}

.import-info code {
    background: var(--bg-primary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: var(--font-sm);
}

.import-results {
    margin-top: var(--space-lg);
}

.import-results .result-success {
    color: var(--success-color, #4caf50);
    font-weight: 600;
}

.import-results .result-error {
    color: var(--danger-color);
    font-weight: 600;
}

/* ── Login Tabs ── */

.login-tabs {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.login-tab {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: var(--font-sm);
    font-weight: 600;
    transition: all 0.2s;
}

.login-tab.active {
    background: var(--bg-primary);
    color: var(--text-primary);
    border-bottom-color: transparent;
}

.login-tab:hover {
    color: var(--text-primary);
}

/* ── Scheduled Badge ── */

.scheduled-badge {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    font-size: var(--font-xs);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    margin-top: var(--space-xs);
}

/* ── Section Actions ── */

.section-actions {
    display: flex;
    gap: var(--space-sm);
}

@media (max-width: 767px) {
    .editor-with-preview {
        grid-template-columns: 1fr;
    }

    .webhook-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .analytics-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ── Corporate UI Refresh ── */
:root {
    --primary-color: #1d4ed8;
    --primary-dark: #1e3a8a;
    --secondary-color: #334155;
    --bg-color: #eef3fb;
    --bg-secondary: #e8eef8;
    --card-bg: rgba(255, 255, 255, 0.94);
    --card-hover: #f8fbff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --border-color: rgba(148, 163, 184, 0.28);
    --border-light: rgba(226, 232, 240, 0.8);
    --shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 20px 45px rgba(15, 23, 42, 0.12);
    --shadow-lg: 0 28px 70px rgba(15, 23, 42, 0.18);
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
}

[data-theme="dark"] {
    --bg-color: #07111f;
    --bg-secondary: #111c2d;
    --card-bg: rgba(15, 23, 42, 0.92);
    --card-hover: #172338;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --border-color: rgba(148, 163, 184, 0.22);
    --border-light: rgba(51, 65, 85, 0.8);
    --input-bg: rgba(15, 23, 42, 0.9);
}

body {
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.18), transparent 32rem),
        radial-gradient(circle at top right, rgba(14, 165, 233, 0.14), transparent 28rem),
        linear-gradient(180deg, #f8fbff 0%, var(--bg-color) 46%, #e6edf8 100%);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

[data-theme="dark"] body {
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.22), transparent 32rem),
        radial-gradient(circle at top right, rgba(14, 165, 233, 0.12), transparent 28rem),
        linear-gradient(180deg, #07111f 0%, #0b1220 100%);
}

.header {
    position: sticky;
    top: 0;
    z-index: 900;
    padding: 0.85rem clamp(1rem, 2vw, 2rem);
    background: rgba(255, 255, 255, 0.86);
    border-bottom: 1px solid rgba(148, 163, 184, 0.22);
    backdrop-filter: blur(18px);
}

[data-theme="dark"] .header {
    background: rgba(7, 17, 31, 0.82);
}

.logo-image,
.footer-logo {
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.24);
    border-radius: 1rem;
    padding: 0.35rem;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.1);
}

.logo h1 {
    color: var(--text-primary);
    font-size: clamp(1rem, 1.6vw, 1.35rem);
    letter-spacing: -0.03em;
}

.logo-company {
    color: var(--primary-color);
}

.nav {
    background: rgba(241, 245, 249, 0.78);
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: 999px;
    padding: 0.3rem;
}

[data-theme="dark"] .nav {
    background: rgba(15, 23, 42, 0.75);
}

.nav-btn {
    border-radius: 999px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.nav-btn.active {
    background: linear-gradient(135deg, #1d4ed8, #0f766e);
    box-shadow: 0 10px 24px rgba(29, 78, 216, 0.28);
}

.theme-toggle,
.header-logout-btn,
.menu-toggle {
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

[data-theme="dark"] .theme-toggle,
[data-theme="dark"] .header-logout-btn,
[data-theme="dark"] .menu-toggle {
    background: rgba(15, 23, 42, 0.9);
}

.main-content {
    width: min(100%, 1500px);
    padding: clamp(1rem, 2.2vw, 2rem);
}

.dashboard-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-lg);
    align-items: center;
    margin-bottom: var(--space-xl);
    padding: clamp(1.25rem, 3vw, 2.5rem);
    border: 1px solid rgba(148, 163, 184, 0.24);
    border-radius: calc(var(--radius-xl) + 0.5rem);
    background:
        linear-gradient(135deg, rgba(15, 23, 42, 0.94), rgba(29, 78, 216, 0.9)),
        radial-gradient(circle at 88% 18%, rgba(255, 255, 255, 0.25), transparent 16rem);
    color: #ffffff;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
}

.dashboard-hero::after {
    content: "";
    position: absolute;
    inset: auto -4rem -6rem auto;
    width: 18rem;
    height: 18rem;
    border-radius: 999px;
    background: rgba(125, 211, 252, 0.18);
}

.dashboard-hero-copy,
.dashboard-hero-actions {
    position: relative;
    z-index: 1;
}

.page-kicker {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
    color: #bfdbfe;
    font-size: var(--font-xs);
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.dashboard-hero h2 {
    max-width: 760px;
    margin: 0;
    color: #ffffff;
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 0.98;
    letter-spacing: -0.06em;
}

.dashboard-hero p {
    max-width: 680px;
    margin-top: var(--space-md);
    color: #dbeafe;
    font-size: clamp(1rem, 1.6vw, 1.2rem);
}

.dashboard-hero-actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    justify-content: flex-end;
}

.dashboard-hero-actions .btn-secondary {
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.28);
}

.section h2,
.section-header h2 {
    letter-spacing: -0.045em;
}

.section-header {
    align-items: flex-start;
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.62);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: var(--radius-xl);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}

[data-theme="dark"] .section-header {
    background: rgba(15, 23, 42, 0.65);
}

.stat-card,
.dashboard-section,
.template-card,
.campaign-card,
.table-container,
.modal-content,
.login-card,
.webhook-card {
    border: 1px solid rgba(148, 163, 184, 0.22);
    box-shadow: var(--shadow);
}

.stat-card,
.template-card,
.campaign-card,
.dashboard-section {
    position: relative;
    overflow: hidden;
}

.stat-card::before,
.template-card::before,
.campaign-card::before,
.dashboard-section::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 4px;
    background: linear-gradient(90deg, #1d4ed8, #06b6d4, #0f766e);
    opacity: 0.9;
}

.stat-card h3 {
    color: var(--text-secondary);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
}

.stat-value {
    color: var(--text-primary);
    font-size: clamp(2rem, 4vw, 3.25rem);
    letter-spacing: -0.06em;
}

.btn {
    border-radius: 999px;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, #1d4ed8, #0f766e);
    box-shadow: 0 14px 30px rgba(29, 78, 216, 0.26);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1e3a8a, #115e59);
}

.btn-secondary {
    background: #0f172a;
}

[data-theme="dark"] .btn-secondary {
    background: #334155;
}

.btn-danger {
    background: linear-gradient(135deg, #dc2626, #991b1b);
}

.filter-bar input,
.filter-bar select,
.form-group input,
.form-group select,
.form-group textarea,
.login-input {
    border-radius: 0.9rem;
    border-color: rgba(148, 163, 184, 0.36);
    background: rgba(255, 255, 255, 0.86);
}

[data-theme="dark"] .filter-bar input,
[data-theme="dark"] .filter-bar select,
[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea,
[data-theme="dark"] .login-input {
    background: rgba(15, 23, 42, 0.84);
}

.data-table th {
    background: linear-gradient(180deg, rgba(241, 245, 249, 0.95), rgba(226, 232, 240, 0.9));
    color: #334155;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

[data-theme="dark"] .data-table th {
    background: rgba(15, 23, 42, 0.95);
    color: var(--text-secondary);
}

.template-card .category,
.status-badge,
.scheduled-badge,
.log-status {
    border-radius: 999px;
}

.template-card .category {
    background: rgba(29, 78, 216, 0.1);
    color: var(--primary-color);
    font-weight: 800;
}

.campaign-meta span {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.65rem;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 999px;
    background: rgba(241, 245, 249, 0.7);
}

[data-theme="dark"] .campaign-meta span {
    background: rgba(15, 23, 42, 0.72);
}

.progress-bar {
    height: 0.7rem;
    border-radius: 999px;
}

.progress-fill {
    background: linear-gradient(90deg, #1d4ed8, #06b6d4);
    border-radius: 999px;
}

.modal {
    background: rgba(2, 6, 23, 0.64);
    backdrop-filter: blur(10px);
}

.modal-content {
    border-radius: var(--radius-xl);
}

.modal-header {
    background: linear-gradient(135deg, rgba(248, 250, 252, 0.95), rgba(226, 232, 240, 0.9));
}

[data-theme="dark"] .modal-header {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.98), rgba(30, 41, 59, 0.95));
}

.preview-content,
.preview-pane,
.recent-logs,
.checkbox-list,
.chart-container,
.import-info {
    border-radius: var(--radius-lg);
}

.app-footer {
    margin: var(--space-xl);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
}

@media (max-width: 1023px) {
    .header {
        align-items: flex-start;
    }

    .header-left {
        width: 100%;
        justify-content: space-between;
    }

    .nav {
        border-radius: var(--radius-xl);
        padding: var(--space-sm);
        background: rgba(255, 255, 255, 0.92);
    }

    [data-theme="dark"] .nav {
        background: rgba(15, 23, 42, 0.95);
    }
}

@media (max-width: 767px) {
    .header {
        padding: var(--space-md);
    }

    .logo h1 {
        white-space: normal;
    }

    .header-right {
        margin-left: auto;
    }

    .dashboard-hero {
        grid-template-columns: 1fr;
        border-radius: var(--radius-xl);
    }

    .dashboard-hero-actions,
    .dashboard-hero-actions .btn {
        width: 100%;
    }

    .section-header {
        padding: var(--space-md);
    }

    .section-actions {
        width: 100%;
        flex-direction: column;
    }

    .campaign-actions .btn {
        min-height: 44px;
    }

    .modal {
        padding: var(--space-sm);
    }

    .modal-content {
        width: 100%;
        max-height: 94vh;
        border-radius: var(--radius-lg);
    }

    .app-footer {
        margin: var(--space-md);
    }
}