@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    --bg-main: #090d16;
    --bg-surface: #0f172a;
    --bg-card: rgba(15, 23, 42, 0.75);
    --bg-card-hover: rgba(30, 41, 59, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(56, 189, 248, 0.25);
    
    --primary: #38bdf8;
    --primary-glow: rgba(56, 189, 248, 0.35);
    --primary-dark: #0284c7;
    --accent: #818cf8;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-full: 9999px;
    
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-main);
    background-image: 
        radial-gradient(at 0% 0%, rgba(56, 189, 248, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(129, 140, 248, 0.1) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(16, 185, 129, 0.05) 0px, transparent 60%);
    background-attachment: fixed;
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
}

/* Sidebar Navigation */
.sidebar {
    width: 260px;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 50;
}

.logo-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    margin-bottom: 32px;
}

.logo-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.logo-text h2 {
    font-size: 17px;
    font-weight: 700;
    background: linear-gradient(135deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text span {
    font-size: 11px;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.nav-item:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.nav-item.active {
    color: #fff;
    background: linear-gradient(90deg, rgba(56, 189, 248, 0.15), rgba(129, 140, 248, 0.05));
    border-left: 3px solid var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.nav-item i {
    font-size: 18px;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px;
    background: rgba(0, 0, 0, 0.25);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.server-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 10px var(--success);
}

/* Main Container */
.main-wrapper {
    margin-left: 260px;
    flex: 1;
    padding: 32px 40px;
    max-width: 1400px;
}

/* Header */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
}

.page-title h1 {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.page-title p {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 4px;
}

.header-actions {
    display: flex;
    gap: 12px;
}

/* Stat Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 22px;
    display: flex;
    align-items: center;
    gap: 18px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-highlight);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.stat-icon.cyan { background: rgba(56, 189, 248, 0.15); color: var(--primary); }
.stat-icon.purple { background: rgba(129, 140, 248, 0.15); color: var(--accent); }
.stat-icon.green { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.stat-icon.amber { background: rgba(245, 158, 11, 0.15); color: var(--warning); }

.stat-info h3 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 2px;
}

.stat-info p {
    font-size: 13px;
    color: var(--text-muted);
}

/* Cards & Panels */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 28px;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.panel-header h2 {
    font-size: 18px;
    font-weight: 700;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    outline: none;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #04101e;
    font-weight: 700;
    box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
}

.btn-success { background: var(--success); color: #fff; }
.btn-warning { background: var(--warning); color: #000; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: 12px; }

/* Campaign Controller Box */
.campaign-hero {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.9), rgba(15, 23, 42, 0.95));
    border: 1px solid var(--border-highlight);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 28px;
}

.progress-track {
    width: 100%;
    height: 12px;
    background: rgba(0, 0, 0, 0.35);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: 16px 0;
    position: relative;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), var(--success));
    border-radius: var(--radius-full);
    transition: width 0.4s ease;
    box-shadow: 0 0 12px var(--primary-glow);
}

/* Console Log Box */
.terminal-box {
    background: #060911;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    height: 220px;
    overflow-y: auto;
    color: #a5f3fc;
    display: flex;
    flex-direction: column-reverse;
}

.log-entry {
    padding: 3px 0;
    display: flex;
    gap: 10px;
    line-height: 1.4;
}

.log-entry .time { color: var(--text-dim); }
.log-entry.success { color: #34d399; }
.log-entry.error { color: #f87171; }
.log-entry.info { color: #38bdf8; }

/* Table Styles */
.custom-table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 13px;
}

.custom-table th {
    background: rgba(15, 23, 42, 0.9);
    color: var(--text-muted);
    font-weight: 600;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
}

.custom-table td {
    padding: 14px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    color: var(--text-main);
}

.custom-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
}

.badge-pending { background: rgba(56, 189, 248, 0.15); color: var(--primary); }
.badge-sent { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.badge-failed { background: rgba(239, 68, 68, 0.15); color: var(--danger); }
.badge-unsubscribed { background: rgba(148, 163, 184, 0.15); color: var(--text-muted); }

/* Form Controls */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: #fff;
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 20px;
}

.modal-overlay.show {
    display: flex;
}

.modal-box {
    background: #0f172a;
    border: 1px solid var(--border-highlight);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 28px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 22px;
    cursor: pointer;
}

/* Tabs View */
.tab-view {
    display: none;
}

.tab-view.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar { width: 80px; padding: 16px 8px; }
    .logo-text, .nav-item span, .sidebar-footer { display: none; }
    .main-wrapper { margin-left: 80px; padding: 20px; }
}

/* ==========================================================================
   GMAIL-STYLE COMPOSE POPUP WINDOW
   ========================================================================== */
.gmail-compose-window {
    position: fixed;
    bottom: 0;
    right: 60px;
    width: 700px;
    height: 560px;
    min-width: 420px;
    min-height: 340px;
    max-width: 98vw;
    max-height: 98vh;
    background: #ffffff;
    color: #202124;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(0, 0, 0, 0.12);
    z-index: 9999;
    display: none;
    flex-direction: column;
    overflow: visible;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    box-sizing: border-box;
}

.gmail-compose-window.show {
    display: flex;
    animation: slideUpCompose 0.22s ease forwards;
}

.gmail-compose-window.minimized {
    height: 44px !important;
    overflow: hidden;
}

.gmail-compose-window.maximized {
    top: 20px !important;
    left: calc(50% - 460px) !important;
    width: 920px !important;
    height: calc(100vh - 40px) !important;
    right: auto !important;
    bottom: auto !important;
    border-radius: 12px !important;
}

@keyframes slideUpCompose {
    from { transform: translateY(80px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* 4-Side & Corner Resize Handles */
.compose-resize-handle {
    position: absolute;
    z-index: 10005;
    background: transparent;
}
.compose-resize-handle.handle-n {
    top: -4px; left: 6px; right: 6px; height: 8px; cursor: ns-resize;
}
.compose-resize-handle.handle-s {
    bottom: -4px; left: 6px; right: 6px; height: 8px; cursor: ns-resize;
}
.compose-resize-handle.handle-w {
    left: -4px; top: 6px; bottom: 6px; width: 8px; cursor: ew-resize;
}
.compose-resize-handle.handle-e {
    right: -4px; top: 6px; bottom: 6px; width: 8px; cursor: ew-resize;
}
.compose-resize-handle.handle-nw {
    top: -4px; left: -4px; width: 12px; height: 12px; cursor: nwse-resize;
}
.compose-resize-handle.handle-ne {
    top: -4px; right: -4px; width: 12px; height: 12px; cursor: nesw-resize;
}
.compose-resize-handle.handle-sw {
    bottom: -4px; left: -4px; width: 12px; height: 12px; cursor: nesw-resize;
}
.compose-resize-handle.handle-se {
    bottom: -4px; right: -4px; width: 12px; height: 12px; cursor: nwse-resize;
}

/* Header (Draggable) */
.gmail-compose-header {
    background: #f2f6fc;
    padding: 10px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e1e7f0;
    user-select: none;
    cursor: move;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

/* Inline Interactive Image Resizer */
.campaign-img-selected {
    outline: 3px solid #1a73e8 !important;
    outline-offset: 3px;
    box-shadow: 0 4px 16px rgba(26, 115, 232, 0.35);
    position: relative;
    transition: all 0.15s ease;
}

#campaign-img-floating-toolbar {
    position: absolute;
    z-index: 10003;
    background: #1e293b;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    padding: 6px 12px;
    display: none;
    align-items: center;
    gap: 6px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.45);
    font-size: 12px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    user-select: none;
    pointer-events: auto;
}

#campaign-img-floating-toolbar button {
    background: #334155;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #f8fafc;
    border-radius: 6px;
    padding: 4px 9px;
    font-size: 11.5px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

#campaign-img-floating-toolbar button:hover {
    background: #1a73e8;
    color: #ffffff;
    border-color: #1a73e8;
}

#campaign-img-floating-toolbar .img-tool-divider {
    width: 1px;
    height: 16px;
    background: rgba(255, 255, 255, 0.2);
    margin: 0 4px;
}

.gmail-cc-toggle-btn {
    font-size: 12px;
    font-weight: 600;
    color: #5f6368;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all 0.15s;
    user-select: none;
}

.gmail-cc-toggle-btn:hover {
    background: #f1f3f4;
    color: #1a73e8;
}

.gmail-cc-toggle-btn.active {
    background: #e8f0fe;
    color: #1a73e8;
}

.gmail-compose-title {
    font-size: 14px;
    font-weight: 600;
    color: #1f2937;
    display: flex;
    align-items: center;
}

.gmail-compose-controls {
    display: flex;
    gap: 4px;
}

.gmail-ctrl-btn {
    background: transparent;
    border: none;
    color: #5f6368;
    width: 26px;
    height: 26px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.15s;
}

.gmail-ctrl-btn:hover {
    background: rgba(0, 0, 0, 0.08);
    color: #202124;
}

.gmail-ctrl-btn.close:hover {
    background: #fee2e2;
    color: #dc2626;
}

/* Body & Fields */
.gmail-compose-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 4px 16px 8px;
    overflow-y: auto;
    background: #ffffff;
}

#modal-add-campaign .gmail-compose-body {
    background: #0f172a;
    color: #f8fafc;
}

.gmail-field-row {
    display: flex;
    align-items: center;
    border-bottom: 1px solid #e5e7eb;
    padding: 8px 0;
    font-size: 13px;
    position: relative;
}

#modal-add-campaign .gmail-field-row {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.gmail-field-label {
    width: 48px;
    color: #6b7280;
    font-size: 13px;
    font-weight: 500;
}

#modal-add-campaign .gmail-field-label {
    color: #94a3b8;
}

#modal-add-campaign .gmail-field-input {
    background: transparent !important;
    color: #f8fafc !important;
}

#modal-add-campaign .gmail-field-input::placeholder {
    color: #64748b !important;
}

.gmail-field-input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 13.5px;
    color: #111827;
    font-family: inherit;
    padding: 2px 4px;
}

.gmail-field-select {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 13px;
    font-weight: 600;
    color: #0284c7;
    font-family: 'JetBrains Mono', monospace;
    cursor: pointer;
}

.compose-replyto-tag {
    font-size: 11px;
    background: #f0fdf4;
    color: #15803d;
    padding: 3px 8px;
    border-radius: 12px;
    border: 1px solid #bbf7d0;
    margin-left: 8px;
    white-space: nowrap;
}

.gmail-field-actions {
    display: flex;
    gap: 8px;
}

.gmail-cc-toggle {
    color: #6b7280;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 4px;
}

.gmail-cc-toggle:hover {
    color: #111827;
    text-decoration: underline;
}

.subject-row {
    border-bottom: 1px solid #e5e7eb;
    margin-bottom: 4px;
}

.gmail-field-input.subject {
    font-weight: 500;
    font-size: 14px;
}

/* Rich Text Formatting Toolbar */
.gmail-formatting-bar {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 4px 6px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    margin: 4px 0 6px;
}

.format-btn {
    background: transparent;
    border: none;
    color: #475569;
    width: 26px;
    height: 26px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 12px;
}

.format-btn:hover {
    background: #e2e8f0;
    color: #0f172a;
}

.format-divider {
    width: 1px;
    height: 16px;
    background: #cbd5e1;
    margin: 0 4px;
}

/* Editor Area */
.gmail-editor-area {
    flex: 1;
    min-height: 180px;
    padding: 12px 4px;
    outline: none;
    font-size: 14px;
    line-height: 1.6;
    color: #1f2937;
    position: relative;
    overflow-y: auto;
}

.gmail-editor-area:empty:before {
    content: attr(data-placeholder);
    color: #9ca3af;
    position: absolute;
    pointer-events: none;
}

/* Attachment Chips Container */
.gmail-attachment-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 0;
}

.attachment-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    border-radius: 16px;
    padding: 4px 10px;
    font-size: 12px;
    color: #334155;
    font-weight: 500;
}

.attachment-chip i.file-icon {
    color: #0284c7;
}

.attachment-chip .chip-remove {
    cursor: pointer;
    color: #ef4444;
    margin-left: 4px;
    border-radius: 50%;
    width: 16px;
    height: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.attachment-chip .chip-remove:hover {
    background: #fee2e2;
}

/* Footer / Toolbar (Exact Gmail) */
.gmail-compose-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px 12px;
    border-top: 1px solid #f1f5f9;
    background: #ffffff;
    user-select: none;
}

.gmail-footer-left {
    display: flex;
    align-items: center;
    gap: 6px;
}

.gmail-send-split-btn {
    display: inline-flex;
    border-radius: 20px;
    overflow: hidden;
    background: #0b57d0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
    margin-right: 8px;
}

.gmail-send-main {
    background: #0b57d0;
    color: #ffffff;
    border: none;
    padding: 8px 18px 8px 20px;
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}

.gmail-send-main:hover {
    background: #0842a0;
}

.gmail-send-arrow {
    background: #0b57d0;
    color: #ffffff;
    border: none;
    border-left: 1px solid rgba(255,255,255,0.2);
    padding: 8px 10px;
    cursor: pointer;
    font-size: 11px;
    display: flex;
    align-items: center;
}

.gmail-send-arrow:hover {
    background: #0842a0;
}

.gmail-tool-icon {
    background: transparent;
    border: none;
    color: #444746;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.15s;
}

.gmail-tool-icon:hover {
    background: #eaebef;
    color: #1f1f1f;
}

.gmail-tool-icon.active {
    background: #d3e3fd;
    color: #041e49;
}

.gmail-tool-icon.discard:hover {
    background: #fee2e2;
    color: #b91c1c;
}

/* ==========================================================================
   Gmail Pro Campaign Studio Modal & Tabs Styling
   ========================================================================== */
.campaign-studio-modal {
    max-width: 980px !important;
    width: 95vw !important;
    max-height: 94vh !important;
    display: flex;
    flex-direction: column;
    padding: 0 !important;
    overflow: hidden !important;
    background: #0f172a !important;
    border: 1px solid rgba(56, 189, 248, 0.25) !important;
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7), 0 0 40px rgba(56, 189, 248, 0.15) !important;
}

.campaign-studio-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.95));
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.campaign-studio-nav {
    display: flex;
    gap: 8px;
    padding: 8px 24px;
    background: rgba(15, 23, 42, 0.7);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    overflow-x: auto;
}

.studio-tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.03);
    color: #94a3b8;
    font-size: 12.5px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
}

.studio-tab-btn:hover {
    background: rgba(56, 189, 248, 0.08);
    color: #f8fafc;
    border-color: rgba(56, 189, 248, 0.3);
}

.studio-tab-btn.active {
    background: linear-gradient(135deg, rgba(2, 132, 199, 0.3), rgba(37, 99, 235, 0.3));
    color: #38bdf8;
    border-color: #0284c7;
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.2);
}

.campaign-studio-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px 24px;
    background: radial-gradient(circle at 50% 0%, rgba(30, 41, 59, 0.4), rgba(15, 23, 42, 0.95));
}

.studio-tab-pane {
    display: none;
    animation: studioFadeIn 0.25s ease-out;
}

.studio-tab-pane.active {
    display: block;
}

@keyframes studioFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Personas Card Grid */
.persona-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 10px;
    max-height: 180px;
    overflow-y: auto;
    padding: 10px;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
}

.persona-pill-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s;
    user-select: none;
}

.persona-pill-card:hover {
    background: rgba(56, 189, 248, 0.08);
    border-color: rgba(56, 189, 248, 0.3);
}

.persona-pill-card.selected {
    background: rgba(2, 132, 199, 0.15);
    border-color: #38bdf8;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.15);
}

.persona-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0284c7, #818cf8);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

/* Live Dynamic Preview Email Viewport */
.email-client-preview-card {
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    border: 1px solid #cbd5e1;
    color: #1e293b;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

.preview-client-header {
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
    padding: 16px 20px;
}

.preview-client-field {
    display: flex;
    align-items: baseline;
    gap: 10px;
    font-size: 13px;
    margin-bottom: 8px;
}

.preview-client-field:last-child {
    margin-bottom: 0;
}

.preview-field-label {
    width: 60px;
    color: #64748b;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.preview-client-body {
    padding: 24px 20px;
    font-size: 14px;
    line-height: 1.7;
    color: #1e293b;
    min-height: 220px;
    white-space: pre-wrap;
    background: #ffffff;
}

/* Speed Cards Grid */
.speed-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 16px;
}

.speed-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.speed-card:hover {
    border-color: rgba(56, 189, 248, 0.4);
    transform: translateY(-2px);
}

.speed-card.active {
    background: linear-gradient(135deg, rgba(2, 132, 199, 0.2), rgba(15, 23, 42, 0.8));
    border-color: #38bdf8;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.2);
}

.campaign-studio-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
    background: #0b1120;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* ==========================================================================
   Inbound Replies & Conversations Hub Styles
   ========================================================================== */
.inbox-split-container {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 18px;
    height: calc(100vh - 210px);
    min-height: 580px;
}

@media (max-width: 1024px) {
    .inbox-split-container {
        grid-template-columns: 1fr;
        height: auto;
    }
}

.inbox-list-pane {
    background: var(--bg-panel);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.inbox-filter-bar {
    display: flex;
    gap: 6px;
    padding: 12px 14px 8px;
    overflow-x: auto;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.inbox-filter-pill {
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.03);
    color: #94a3b8;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.15s ease;
}

.inbox-filter-pill:hover {
    background: rgba(56, 189, 248, 0.1);
    color: #f8fafc;
}

.inbox-filter-pill.active {
    background: #0284c7;
    color: #ffffff;
    border-color: #38bdf8;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.3);
}

.inbox-search-box {
    padding: 10px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.inbox-items-scroll {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.inbox-item-card {
    display: flex;
    gap: 12px;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
    margin-bottom: 6px;
    background: rgba(255, 255, 255, 0.02);
    position: relative;
}

.inbox-item-card:hover {
    background: rgba(56, 189, 248, 0.06);
    border-color: rgba(56, 189, 248, 0.2);
}

.inbox-item-card.active {
    background: linear-gradient(135deg, rgba(2, 132, 199, 0.15), rgba(15, 23, 42, 0.6));
    border-color: #38bdf8;
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.15);
}

.inbox-item-card.unread::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 18px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #38bdf8;
    box-shadow: 0 0 8px #38bdf8;
}

.inbox-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0284c7, #818cf8);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}

.inbox-conversation-pane {
    background: var(--bg-panel);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.inbox-convo-header {
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(15, 23, 42, 0.5);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.inbox-lead-context-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 20px;
    background: rgba(56, 189, 248, 0.04);
    border-bottom: 1px solid rgba(56, 189, 248, 0.15);
    font-size: 12px;
    flex-wrap: wrap;
}

.inbox-convo-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px 20px;
    background: rgba(0, 0, 0, 0.2);
}

.inbox-message-bubble {
    background: #ffffff;
    color: #1e293b;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
}

.inbox-reply-box {
    padding: 14px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(15, 23, 42, 0.8);
}