/* 
 * EmailFlow Pro - Enterprise SaaS Multi-Theme CSS System
 * Universal High-Contrast Dark & Light Mode Theme
 */

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

/* ==========================================================================
   1. Theme Variables Definitions
   ========================================================================== */

/* Dark Mode Theme Variables (Default) */
:root,
[data-theme="dark"] {
  --bg-main: #090d16;
  --bg-sidebar: #0f172a;
  --bg-card: rgba(15, 23, 42, 0.9);
  --bg-card-hover: rgba(30, 41, 59, 0.95);
  --border-color: rgba(255, 255, 255, 0.18);
  --border-glow: rgba(99, 102, 241, 0.5);
  
  --text-primary: #ffffff;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --label-color: #f8fafc;
  
  --input-bg: #0f172a;
  --input-border: 1.5px solid rgba(255, 255, 255, 0.28);
  --input-text: #ffffff;
  --input-placeholder: #cbd5e1;
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --accent: #06b6d4;
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #4338ca 100%);
  --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #2563eb 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #047857 100%);
  --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #b45309 100%);
  --gradient-danger: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%);

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.4);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.8);
  --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.4);
  
  --glass-bg: rgba(15, 23, 42, 0.9);
  --glass-border: 1px solid rgba(255, 255, 255, 0.18);
  --backdrop-blur: blur(16px);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 50px;
}

/* Light Mode Theme Variables */
[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-sidebar: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --border-color: #e2e8f0;
  --border-glow: rgba(99, 102, 241, 0.3);
  
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --label-color: #0f172a;
  
  --input-bg: #ffffff;
  --input-border: 1.5px solid #cbd5e1;
  --input-text: #0f172a;
  --input-placeholder: #64748b;
  
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.2);
  --glass-bg: rgba(255, 255, 255, 0.92);
  --glass-border: 1px solid #e2e8f0;
}

/* ==========================================================================
   2. Global Typography & Core Overrides
   ========================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Dark Mode Typography Enforcement */
[data-theme="dark"], body:not([data-theme="light"]) {
  color: #f8fafc !important;
}

[data-theme="dark"] h1, [data-theme="dark"] .h1,
[data-theme="dark"] h2, [data-theme="dark"] .h2,
[data-theme="dark"] h3, [data-theme="dark"] .h3,
[data-theme="dark"] h4, [data-theme="dark"] .h4,
[data-theme="dark"] h5, [data-theme="dark"] .h5,
[data-theme="dark"] h6, [data-theme="dark"] .h6 {
  color: #ffffff !important;
  font-weight: 800;
}

[data-theme="dark"] p,
[data-theme="dark"] li,
[data-theme="dark"] td,
[data-theme="dark"] th {
  color: #e2e8f0;
}

[data-theme="dark"] .text-muted,
[data-theme="dark"] span.text-muted,
[data-theme="dark"] div.text-muted,
[data-theme="dark"] p.text-muted,
[data-theme="dark"] small.text-muted,
[data-theme="dark"] .text-secondary,
[data-theme="dark"] .extra-small {
  color: #cbd5e1 !important;
  opacity: 1 !important;
}

/* Light Mode Typography Enforcement */
[data-theme="light"] {
  color: #0f172a !important;
}

[data-theme="light"] h1, [data-theme="light"] .h1,
[data-theme="light"] h2, [data-theme="light"] .h2,
[data-theme="light"] h3, [data-theme="light"] .h3,
[data-theme="light"] h4, [data-theme="light"] .h4,
[data-theme="light"] h5, [data-theme="light"] .h5,
[data-theme="light"] h6, [data-theme="light"] .h6 {
  color: #0f172a !important;
  font-weight: 800;
}

[data-theme="light"] p,
[data-theme="light"] li,
[data-theme="light"] td,
[data-theme="light"] th {
  color: #1e293b;
}

[data-theme="light"] .text-muted,
[data-theme="light"] span.text-muted,
[data-theme="light"] div.text-muted,
[data-theme="light"] p.text-muted,
[data-theme="light"] small.text-muted,
[data-theme="light"] .text-secondary,
[data-theme="light"] .extra-small {
  color: #475569 !important;
  opacity: 1 !important;
}

/* ==========================================================================
   3. Form Labels, Controls, Inputs & Placeholders
   ========================================================================== */

/* Universal High Contrast Form Labels */
label, 
.form-label, 
label.form-label, 
.stat-label, 
.menu-category {
  font-weight: 700 !important;
  font-size: 0.86rem !important;
  letter-spacing: 0.5px !important;
  margin-bottom: 7px !important;
  display: block !important;
  opacity: 1 !important;
  text-transform: uppercase !important;
}

[data-theme="dark"] label,
[data-theme="dark"] .form-label,
[data-theme="dark"] .stat-label,
[data-theme="dark"] .menu-category {
  color: #f8fafc !important;
}

[data-theme="light"] label,
[data-theme="light"] .form-label,
[data-theme="light"] .stat-label,
[data-theme="light"] .menu-category {
  color: #0f172a !important;
}

/* Form Controls (Inputs, Selects, Textareas) */
.form-control,
.form-select,
.form-control-glass {
  border-radius: var(--radius-md) !important;
  padding: 12px 16px !important;
  font-size: 0.95rem !important;
  font-weight: 500 !important;
  transition: all 0.2s ease !important;
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select,
[data-theme="dark"] .form-control-glass,
[data-theme="dark"] select option {
  background-color: #0f172a !important;
  border: 1.5px solid rgba(255, 255, 255, 0.28) !important;
  color: #ffffff !important;
}

[data-theme="dark"] .form-control::placeholder,
[data-theme="dark"] .form-control-glass::placeholder,
[data-theme="dark"] textarea::placeholder {
  color: #cbd5e1 !important;
  opacity: 0.85 !important;
}

[data-theme="light"] .form-control,
[data-theme="light"] .form-select,
[data-theme="light"] .form-control-glass,
[data-theme="light"] select option {
  background-color: #ffffff !important;
  border: 1.5px solid #cbd5e1 !important;
  color: #0f172a !important;
}

[data-theme="light"] .form-control::placeholder,
[data-theme="light"] .form-control-glass::placeholder,
[data-theme="light"] textarea::placeholder {
  color: #64748b !important;
  opacity: 0.85 !important;
}

/* Focus States */
.form-control:focus,
.form-select:focus,
.form-control-glass:focus {
  border-color: #6366f1 !important;
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.35) !important;
  outline: none !important;
}

/* Input Group Text Icon Box */
.input-group-text {
  border-radius: var(--radius-md) 0 0 var(--radius-md) !important;
}

[data-theme="dark"] .input-group-text {
  background-color: #1e293b !important;
  border: 1.5px solid rgba(255, 255, 255, 0.28) !important;
  color: #818cf8 !important;
}

[data-theme="light"] .input-group-text {
  background-color: #f1f5f9 !important;
  border: 1.5px solid #cbd5e1 !important;
  color: #4338ca !important;
}

/* ==========================================================================
   4. Buttons - Universal Light Text & High Visibility
   ========================================================================== */

/* Primary & Accent Gradient Buttons MUST ALWAYS HAVE PURE WHITE BOLD FONT */
.btn-gradient-primary,
.btn-primary,
.btn-gradient-accent,
.btn-success,
.btn-danger,
.btn-warning {
  color: #ffffff !important;
  font-weight: 700 !important;
  border: none !important;
  border-radius: var(--radius-md);
  padding: 10px 22px;
  transition: all 0.2s ease;
  letter-spacing: 0.3px;
}

.btn-gradient-primary {
  background: var(--gradient-primary) !important;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-gradient-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(99, 102, 241, 0.6);
  color: #ffffff !important;
}

.btn-gradient-accent {
  background: var(--gradient-accent) !important;
  box-shadow: 0 4px 14px rgba(6, 182, 212, 0.4);
}

.btn-gradient-accent:hover {
  transform: translateY(-2px);
  color: #ffffff !important;
}

/* Secondary Glass Buttons */
.btn-glass {
  border-radius: var(--radius-md);
  padding: 9px 20px;
  font-weight: 600;
  transition: all 0.2s ease;
}

[data-theme="dark"] .btn-glass {
  background: rgba(255, 255, 255, 0.08) !important;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
  color: #ffffff !important;
}

[data-theme="dark"] .btn-glass:hover {
  background: rgba(255, 255, 255, 0.18) !important;
  color: #ffffff !important;
}

[data-theme="light"] .btn-glass {
  background: #f1f5f9 !important;
  border: 1px solid #cbd5e1 !important;
  color: #0f172a !important;
}

[data-theme="light"] .btn-glass:hover {
  background: #e2e8f0 !important;
  color: #0f172a !important;
}

/* ==========================================================================
   5. Glass Cards, Layout, Sidebar & Navigation
   ========================================================================== */

.glass-card {
  background: var(--bg-card);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.glass-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.glass-nav {
  background: var(--glass-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-bottom: var(--glass-border);
}

/* App Sidebar */
.app-sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  border-right: var(--glass-border);
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 1040;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}

.sidebar-brand {
  height: 70px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: var(--glass-border);
}

.sidebar-logo {
  height: 38px;
  width: auto;
  border-radius: 8px;
}

.sidebar-menu {
  flex: 1;
  padding: 20px 14px;
  overflow-y: auto;
}

.nav-link-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s ease;
  margin-bottom: 4px;
}

.nav-link-item:hover, .nav-link-item.active {
  background: var(--gradient-primary);
  color: #ffffff !important;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

.nav-link-item i {
  font-size: 1.1rem;
}

.app-main {
  margin-left: 260px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left 0.3s ease;
}

.app-topbar {
  height: 70px;
  padding: 0 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 1030;
}

.app-content {
  padding: 30px;
  flex: 1;
}

/* ==========================================================================
   6. Dashboard KPI Stat Cards & Analytics
   ========================================================================== */

.stat-card {
  padding: 22px;
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, var(--border-glow) 0%, transparent 70%);
  opacity: 0.15;
  pointer-events: none;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #fff;
}

.stat-val {
  font-size: 1.8rem;
  font-weight: 800;
  margin: 10px 0 4px;
  letter-spacing: -0.5px;
}

[data-theme="dark"] .stat-val {
  color: #ffffff !important;
}

[data-theme="light"] .stat-val {
  color: #0f172a !important;
}

.stat-label {
  font-size: 0.82rem !important;
  font-weight: 800 !important;
  letter-spacing: 0.8px !important;
  text-transform: uppercase !important;
}

[data-theme="dark"] .stat-label {
  color: #e2e8f0 !important;
}

[data-theme="light"] .stat-label {
  color: #475569 !important;
}

/* ==========================================================================
   7. Tables, Badges, Modals, Code Blocks & Alerts
   ========================================================================== */

/* Glass Tables */
.table-glass {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 8px;
}

.table-glass th {
  padding: 12px 16px;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .table-glass th {
  color: #cbd5e1 !important;
}

[data-theme="light"] .table-glass th {
  color: #475569 !important;
}

.table-glass td {
  padding: 16px;
  background: var(--bg-card);
  border-top: var(--glass-border);
  border-bottom: var(--glass-border);
  font-size: 0.9rem;
}

.table-glass tr td:first-child {
  border-left: var(--glass-border);
  border-top-left-radius: var(--radius-md);
  border-bottom-left-radius: var(--radius-md);
}

.table-glass tr td:last-child {
  border-right: var(--glass-border);
  border-top-right-radius: var(--radius-md);
  border-bottom-right-radius: var(--radius-md);
}

/* Status Badges */
.badge-status {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.badge-status.sending {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-status.sending::before {
  content: '';
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 8px #10b981;
  animation: pulse-glow 1.5s infinite;
}

@keyframes pulse-glow {
  0% { transform: scale(0.95); opacity: 0.7; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.7; }
}

/* Modals */
.modal-content {
  background: var(--bg-card) !important;
  border: var(--glass-border) !important;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5) !important;
}

[data-theme="dark"] .modal-content {
  background-color: #0f172a !important;
  color: #ffffff !important;
}

[data-theme="light"] .modal-content {
  background-color: #ffffff !important;
  color: #0f172a !important;
}

.modal-header, .modal-footer {
  border-color: var(--border-color) !important;
}

.modal-title {
  font-weight: 800 !important;
}

/* Code Highlights */
code {
  color: #f472b6 !important;
  background: rgba(244, 114, 182, 0.18) !important;
  border: 1px solid rgba(244, 114, 182, 0.35) !important;
  padding: 3px 8px !important;
  border-radius: 6px !important;
  font-weight: 600 !important;
}

/* Responsive Drawer for Mobile */
@media (max-width: 991px) {
  .app-sidebar {
    transform: translateX(-100%);
  }
  .app-sidebar.show {
    transform: translateX(0);
  }
  .app-main {
    margin-left: 0;
  }
  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1035;
    display: none;
  }
  .sidebar-overlay.show {
    display: block;
  }
}

/* ==========================================================================
   Professional Responsive Polish - Email Automation Suite
   ========================================================================== */
:root {
  --ef-container: 1180px;
  --ef-focus: 0 0 0 4px rgba(99,102,241,.25);
}

.app-main, .app-content, main {
  min-width: 0;
}

.glass-card {
  border-radius: 18px !important;
  border: 1px solid rgba(255,255,255,.14) !important;
  box-shadow: 0 18px 50px rgba(0,0,0,.22) !important;
}

[data-theme="light"] .glass-card {
  border: 1px solid #e5e7eb !important;
  box-shadow: 0 12px 30px rgba(15,23,42,.08) !important;
}

.btn,
.form-control,
.form-select,
.form-check-input {
  min-height: 44px;
}

.btn-sm { min-height: 36px; }

.btn-gradient-primary {
  background: linear-gradient(135deg, #6366f1 0%, #2563eb 100%) !important;
  border: 0 !important;
  box-shadow: 0 12px 22px rgba(37,99,235,.18);
}

.btn-gradient-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 30px rgba(37,99,235,.24);
}

.table-responsive {
  border-radius: 14px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-glass {
  min-width: 860px;
}

.table-glass th {
  white-space: nowrap;
  font-size: .76rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.badge-status,
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  line-height: 1;
  min-height: 26px;
  border-radius: 999px;
  padding: 7px 10px;
}

.modal-dialog {
  margin: 16px auto;
}

.modal-content {
  max-height: calc(100vh - 32px);
  overflow: hidden;
}

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

input:focus-visible,
select:focus-visible,
textarea:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: none !important;
  box-shadow: var(--ef-focus) !important;
}

.workflow-step-line {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.workflow-step-line:last-child { border-bottom: 0; }

.metric-card {
  position: relative;
  overflow: hidden;
}
.metric-card::after {
  content: "";
  position: absolute;
  right: -30px;
  top: -30px;
  width: 90px;
  height: 90px;
  background: radial-gradient(circle, rgba(99,102,241,.18), transparent 65%);
}

@media (max-width: 1199.98px) {
  .d-flex.align-items-center.justify-content-between.mb-4 {
    align-items: flex-start !important;
    gap: 16px;
  }
}

@media (max-width: 991.98px) {
  body { font-size: 15px; }
  .app-content, main { padding: 18px !important; }
  .glass-card { padding: 18px !important; }
  .row.g-4 { --bs-gutter-x: 1rem; --bs-gutter-y: 1rem; }
}

@media (max-width: 767.98px) {
  h3.fw-bold { font-size: 1.35rem; line-height: 1.25; }
  .d-flex.align-items-center.justify-content-between.mb-4 {
    flex-direction: column;
  }
  .d-flex.align-items-center.justify-content-between.mb-4 > a,
  .d-flex.align-items-center.justify-content-between.mb-4 > button,
  .d-flex.align-items-center.justify-content-between.mb-4 .btn {
    width: 100%;
    justify-content: center;
  }
  .btn-group {
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    gap: 8px;
  }
  .btn-group .btn {
    border-radius: 12px !important;
    width: 100%;
  }
  .modal-dialog { width: calc(100% - 20px); }
  .modal-footer { flex-direction: column; }
  .modal-footer .btn { width: 100%; }
  footer {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 420px) {
  .app-content, main { padding: 14px !important; }
  .glass-card { padding: 14px !important; border-radius: 14px !important; }
  .form-control, .form-select, .form-control-glass { padding: 11px 12px !important; }
  .btn-group { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}

/* ==========================================================================
   Mobile Responsiveness Hardening - All App Sections
   ========================================================================== */
html, body { max-width: 100%; }
img, svg, canvas, iframe { max-width: 100%; }

@media (max-width: 767.98px) {
  .container, .container-fluid { max-width: 100% !important; padding-left: 14px !important; padding-right: 14px !important; }
  .row { --bs-gutter-x: .85rem; --bs-gutter-y: .85rem; }
  [class*="col-xl"], [class*="col-lg"], [class*="col-md"], [class*="col-sm"] { min-width: 0; }

  /* Header/action bars */
  .d-flex.justify-content-between,
  .d-flex.align-items-center.justify-content-between,
  .d-flex.justify-content-between.align-items-center {
    flex-wrap: wrap;
    gap: 12px;
  }
  .d-flex.gap-2,
  .d-flex.gap-3 { flex-wrap: wrap; }
  .d-flex.gap-2 > .btn,
  .d-flex.gap-3 > .btn,
  .d-flex.gap-2 > a.btn,
  .d-flex.gap-3 > a.btn { flex: 1 1 100%; justify-content: center; }

  /* Cards and metrics */
  .glass-card { width: 100%; overflow: hidden; }
  .stat-card, .metric-card { min-height: auto; }
  .display-4 { font-size: 2.2rem; }
  .fs-4 { font-size: 1.25rem !important; }

  /* Forms */
  .input-group { width: 100% !important; max-width: 100% !important; flex-wrap: nowrap; }
  .form-control, .form-select, .form-control-glass, textarea { width: 100% !important; max-width: 100% !important; }
  textarea[rows="18"] { min-height: 260px; }
  .form-check { padding-top: 4px; padding-bottom: 4px; }

  /* Tables */
  .table-responsive { width: 100%; margin-bottom: 0; border: 1px solid rgba(255,255,255,.08); }
  .table-glass { min-width: 720px; }
  .table-glass td, .table-glass th { padding: 12px 10px !important; vertical-align: top; }

  /* Progress bars and badges */
  td[style*="min-width"] { min-width: 130px !important; }
  .badge, .badge-status { white-space: normal; text-align: left; }

  /* Modals and previews */
  .modal-dialog-centered { min-height: calc(100% - 1rem); }
  iframe { min-height: 320px; }
  #live-preview-iframe, #previewIframe { height: 360px !important; }

  /* Automation cards */
  .workflow-step-line, .automation-step, .p-3.bg-dark .d-flex { align-items: flex-start !important; }
  .p-3.bg-dark .d-flex i { margin-top: 2px; }
}

@media (max-width: 575.98px) {
  body { font-size: 14px; }
  h1, .h1 { font-size: 1.7rem !important; }
  h2, .h2 { font-size: 1.45rem !important; }
  h3, .h3 { font-size: 1.25rem !important; }
  h4, .h4, h5, .h5 { font-size: 1.05rem !important; }

  .btn { width: 100%; justify-content: center; }
  .btn-sm { min-height: 40px; }
  form.d-inline { display: block !important; width: 100%; }
  form.d-inline .btn, td .btn, td form .btn { width: 100%; margin: 4px 0 !important; }

  .card-body, .modal-body { padding: 16px !important; }
  .modal-content { border-radius: 22px !important; }
  .modal-header, .modal-footer { padding-left: 16px !important; padding-right: 16px !important; }

  .table-glass { min-width: 640px; font-size: .86rem; }
  .progress { min-width: 90px; }

  .alert { align-items: flex-start !important; line-height: 1.45; }
  code { white-space: normal; word-break: break-word; }
}

@media (max-width: 390px) {
  .container, .container-fluid, .app-content, main { padding-left: 10px !important; padding-right: 10px !important; }
  .glass-card { padding: 12px !important; }
  .table-glass { min-width: 600px; }
  .badge, .badge-status { font-size: .72rem; padding: 6px 8px; }
}

/* ==========================================================================
   Visibility + Logo Responsiveness Fixes
   ========================================================================== */
/* Make table header gray text prominent, especially on light backgrounds */
.table-glass thead,
.table-glass thead tr,
.table-glass th {
  background: #ffffff !important;
}
.table-glass th {
  color: #0f172a !important;
  font-weight: 900 !important;
  letter-spacing: .055em !important;
  border-bottom: 2px solid #cbd5e1 !important;
}
[data-theme="dark"] .table-glass th,
[data-theme="light"] .table-glass th {
  color: #0f172a !important;
  background: #ffffff !important;
}

/* Stronger light-theme text visibility */
[data-theme="light"] .text-muted,
[data-theme="light"] span.text-muted,
[data-theme="light"] div.text-muted,
[data-theme="light"] p.text-muted,
[data-theme="light"] small.text-muted,
[data-theme="light"] label.text-muted,
[data-theme="light"] .text-secondary,
[data-theme="light"] .extra-small {
  color: #111827 !important;
  opacity: 1 !important;
}
[data-theme="light"] .badge.bg-secondary-subtle,
[data-theme="light"] .badge.text-muted,
[data-theme="light"] .bg-secondary-subtle.text-muted {
  background: #e5e7eb !important;
  color: #111827 !important;
  border: 1px solid #9ca3af !important;
}
[data-theme="light"] footer,
[data-theme="light"] footer a,
[data-theme="light"] footer .text-muted {
  color: #111827 !important;
}

/* Better dark-theme gray visibility too */
[data-theme="dark"] .text-muted,
[data-theme="dark"] span.text-muted,
[data-theme="dark"] div.text-muted,
[data-theme="dark"] p.text-muted,
[data-theme="dark"] small.text-muted,
[data-theme="dark"] label.text-muted,
[data-theme="dark"] .text-secondary,
[data-theme="dark"] .extra-small {
  color: #e2e8f0 !important;
  opacity: 1 !important;
}
[data-theme="dark"] .badge.bg-secondary-subtle,
[data-theme="dark"] .badge.text-muted,
[data-theme="dark"] .bg-secondary-subtle.text-muted {
  background: rgba(226,232,240,.92) !important;
  color: #0f172a !important;
  border: 1px solid rgba(255,255,255,.65) !important;
}

/* Responsive sidebar logo/brand */
.sidebar-brand {
  min-height: 76px;
  height: auto !important;
  padding: 12px 16px !important;
  gap: 10px !important;
  overflow: hidden;
}
.sidebar-brand > i {
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem !important;
}
.sidebar-brand > div {
  min-width: 0;
  flex: 1;
}
.sidebar-brand h5 {
  color: #ffffff !important;
  font-size: clamp(1rem, 1.4vw, 1.35rem) !important;
  line-height: 1.15 !important;
  white-space: normal !important;
  overflow-wrap: anywhere;
  margin-bottom: 4px !important;
}
.sidebar-brand .badge {
  max-width: 100%;
  white-space: nowrap;
  font-weight: 900 !important;
}
[data-theme="light"] .sidebar-brand h5 {
  color: #0f172a !important;
}

@media (max-width: 991.98px) {
  .sidebar-brand { min-height: 68px; }
  .sidebar-brand h5 { font-size: 1.05rem !important; }
  .sidebar-brand > i { width: 34px; height: 34px; font-size: 1.75rem !important; }
}
@media (max-width: 390px) {
  .sidebar-brand { padding: 10px 12px !important; }
  .sidebar-brand h5 { font-size: .98rem !important; }
  .sidebar-brand .badge { font-size: .62rem !important; padding: 5px 8px !important; }
}

/* Campaign/contact picker and mobile header final fixes */
.contact-picker{max-height:260px;overflow:auto;border:1px solid rgba(255,255,255,.16);border-radius:16px;background:rgba(2,6,23,.28);padding:10px;display:grid;gap:8px}.contact-pick-item{display:flex;align-items:flex-start;gap:10px;padding:10px;border-radius:12px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.04);cursor:pointer}.contact-pick-item input{margin-top:4px}.contact-pick-item span{display:flex;flex-direction:column;min-width:0}.contact-pick-item b{color:#fff;overflow-wrap:anywhere}.contact-pick-item small{color:#cbd5e1;overflow-wrap:anywhere}[data-theme="light"] .contact-picker{background:#f8fafc;border-color:#cbd5e1}[data-theme="light"] .contact-pick-item{background:#fff;border-color:#e5e7eb}[data-theme="light"] .contact-pick-item b{color:#111827}[data-theme="light"] .contact-pick-item small{color:#374151}
@media(max-width:767.98px){.app-topbar{height:auto!important;min-height:64px;padding:10px 12px!important;gap:10px;flex-wrap:wrap}.app-topbar>.d-flex{width:100%;justify-content:space-between}.app-topbar .btn-gradient-primary span{display:inline!important}.app-topbar .badge-status,.app-topbar .text-muted{font-size:.72rem!important}.contact-picker{max-height:220px}.contact-pick-item{padding:9px}.campaign-actions,td .btn,td form{width:100%;display:block!important}.table-glass td:last-child{min-width:150px}}
@media(max-width:420px){.app-topbar .btn{min-height:40px;padding:8px 10px!important}.app-topbar .btn-gradient-primary{width:auto!important}.contact-picker{max-height:190px}}


/* Gmail-like reply inbox and compose UI */
.gmail-compose{background:#fff!important;color:#111827!important;border-radius:16px;overflow:hidden}.compose-line{width:100%;border:0;border-bottom:1px solid #e5e7eb;padding:13px 14px;outline:0;color:#111827;background:#fff}.compose-body{width:100%;border:0;outline:0;padding:14px;color:#111827;background:#fff;resize:vertical}.reply-thread{display:grid;gap:12px}.reply-bubble{padding:14px;border-radius:16px;border:1px solid rgba(255,255,255,.12)}.reply-bubble.inbound{background:rgba(255,255,255,.07)}.reply-bubble.outbound{background:rgba(37,99,235,.18);margin-left:38px}.reply-bubble p{margin:8px 0 0}@media(max-width:575.98px){.reply-bubble.outbound{margin-left:0}.gmail-compose{border-radius:12px}.compose-line,.compose-body{font-size:14px}}