/* ============================================================
   SignatureHub – Main Stylesheet
   Colors: Deep Blue #1e3a5f | Gold #d4a843 | White #ffffff
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  --primary:        #1e3a5f;
  --primary-light:  #2d5a8f;
  --primary-dark:   #12243d;
  --accent:         #d4a843;
  --accent-light:   #e8c068;
  --accent-dark:    #b8902f;
  --bg:             #ffffff;
  --bg-secondary:   #f4f7ff;
  --bg-tertiary:    #eef2ff;
  --text:           #1a1a2e;
  --text-secondary: #4a5568;
  --text-muted:     #718096;
  --border:         #e2e8f0;
  --border-focus:   #2d5a8f;
  --shadow-sm:      0 2px 8px rgba(30,58,95,0.08);
  --shadow:         0 4px 20px rgba(30,58,95,0.12);
  --shadow-lg:      0 8px 40px rgba(30,58,95,0.16);
  --radius-sm:      6px;
  --radius:         12px;
  --radius-lg:      20px;
  --radius-xl:      32px;
  --transition:     0.3s ease;
  --header-h:       72px;
  --max-w:          1200px;
}

/* Dark Mode */
[data-theme="dark"] {
  --bg:             #0d1b2a;
  --bg-secondary:   #152233;
  --bg-tertiary:    #1a2d42;
  --text:           #e2e8f0;
  --text-secondary: #a0aec0;
  --text-muted:     #718096;
  --border:         #243447;
  --shadow-sm:      0 2px 8px rgba(0,0,0,0.3);
  --shadow:         0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg:      0 8px 40px rgba(0,0,0,0.5);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a  { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
ul { list-style: none; }

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
}
h1 { font-size: clamp(1.9rem, 4.5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p  { color: var(--text-secondary); }

/* ---------- Layout Helpers ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 80px 0;
}
.section--gray {
  background: var(--bg-secondary);
}
.section-title {
  text-align: center;
  margin-bottom: 16px;
}
.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 56px;
  font-size: 1.05rem;
}
.text-center { text-align: center; }
.mt-8  { margin-top:  8px;  }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8  { margin-bottom:  8px;  }
.mb-16 { margin-bottom: 16px; }
.mb-32 { margin-bottom: 32px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
  font-family: inherit;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.btn-accent {
  background: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
}
.btn-accent:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  color: var(--primary-dark);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn-ghost:hover {
  background: var(--bg-secondary);
  color: var(--text);
}
.btn-sm {
  padding: 10px 20px;
  font-size: 0.875rem;
}
.btn-lg {
  padding: 18px 36px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}
.btn-block { width: 100%; justify-content: center; }
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}
.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  justify-content: center;
  border-radius: var(--radius-sm);
}

/* ---------- Header & Nav ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-h);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--transition), box-shadow var(--transition);
}
.header.scrolled {
  box-shadow: var(--shadow-sm);
}
.header .container {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-icon {
  width: 36px;
  height: 36px;
}
.logo-text {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.5px;
}
[data-theme="dark"] .logo-text { color: #e2e8f0; }

/* Nav Links */
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--primary);
  background: var(--bg-secondary);
}
[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
  color: #e2e8f0;
  background: var(--bg-secondary);
}

/* Nav dropdown */
.nav-dropdown {
  position: relative;
}
.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
  z-index: 100;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}
.nav-dropdown-menu a:hover {
  background: var(--bg-secondary);
  color: var(--primary);
}

/* Header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}
.theme-toggle {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition);
  font-size: 1.1rem;
}
.theme-toggle:hover {
  background: var(--bg-secondary);
  color: var(--text);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: none;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero Section ---------- */
.hero {
  padding: 100px 0 80px;
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-tertiary) 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(212,168,67,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(30,58,95,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(212,168,67,0.12);
  color: var(--accent-dark);
  border: 1px solid rgba(212,168,67,0.3);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}
.hero h1 {
  max-width: 760px;
  margin: 0 auto 20px;
  letter-spacing: -0.5px;
}
.hero h1 span {
  color: var(--accent);
}
.hero-subtitle {
  font-size: 1.1rem;
  max-width: 540px;
  margin: 0 auto 40px;
  color: var(--text-secondary);
}
.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-note {
  margin-top: 24px;
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.hero-note svg { flex-shrink: 0; }

/* ---------- How It Works ---------- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}
.steps-grid::before {
  content: '';
  position: absolute;
  top: 36px;
  left: calc(16.6% + 24px);
  right: calc(16.6% + 24px);
  height: 2px;
  background: linear-gradient(90deg, var(--border), var(--accent), var(--border));
}
.step-card {
  text-align: center;
  padding: 32px 24px;
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: 1;
  transition: all var(--transition);
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}
.step-number {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 20px;
  box-shadow: 0 4px 16px rgba(30,58,95,0.3);
}
.step-card h3 { margin-bottom: 8px; }

/* ---------- Feature Cards ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.feature-card {
  padding: 28px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--primary-light);
}
.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}
.feature-card h3 { margin-bottom: 8px; font-size: 1.1rem; }

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  text-align: left;
  color: var(--text);
  gap: 16px;
  font-family: inherit;
}
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition);
  font-size: 1.1rem;
}
.faq-item.open .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding var(--transition);
}
.faq-item.open .faq-answer {
  max-height: 300px;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- Ad Placeholders ---------- */
.ad-placeholder {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.ad-placeholder--banner {
  min-height: 90px;
  margin: 32px 0;
}
.ad-placeholder--rectangle {
  min-height: 250px;
  min-width: 300px;
}
.ad-placeholder--sidebar {
  width: 300px;
  min-height: 250px;
}
.ad-placeholder .ad-label {
  display: flex;
  align-items: center;
  gap: 6px;
}
.ad-note {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
}

/* ---------- Affiliate Box ---------- */
.affiliate-box {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.affiliate-box h3 {
  margin-bottom: 8px;
}
.affiliate-box p {
  margin-bottom: 24px;
}
.affiliate-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.affiliate-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  color: var(--text);
  font-weight: 500;
  font-size: 0.9rem;
}
.affiliate-link:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  color: var(--primary);
}
.affiliate-link-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.affiliate-badge {
  font-size: 0.72rem;
  background: rgba(212,168,67,0.15);
  color: var(--accent-dark);
  padding: 2px 8px;
  border-radius: 100px;
  font-weight: 600;
}

/* ---------- Tool Container ---------- */
.tool-page {
  padding: 48px 0 64px;
}
.tool-header {
  text-align: center;
  margin-bottom: 40px;
}
.tool-header h1 { margin-bottom: 12px; }
.tool-privacy-note {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(30,58,95,0.06);
  color: var(--text-secondary);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.82rem;
  margin-top: 12px;
}

/* Tabs */
.tool-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 4px;
  width: fit-content;
  margin: 0 auto 32px;
}
.tool-tab {
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  border: none;
  background: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition);
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 8px;
}
.tool-tab.active {
  background: var(--bg);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}
[data-theme="dark"] .tool-tab.active {
  background: var(--bg-tertiary);
  color: #e2e8f0;
}
.tool-panel { display: none; }
.tool-panel.active { display: block; }

/* Drawing Canvas */
.canvas-container {
  position: relative;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: crosshair;
  box-shadow: var(--shadow-sm);
}
.canvas-container canvas {
  display: block;
  width: 100%;
  touch-action: none;
}
.canvas-hint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.1rem;
  pointer-events: none;
  gap: 10px;
  transition: opacity var(--transition);
}
.canvas-hint.hidden { opacity: 0; }

/* Drawing Controls */
.draw-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
  padding: 16px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.draw-controls label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
}
.color-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 3px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
}
.color-btn.active {
  border-color: var(--primary);
  transform: scale(1.15);
}
.color-btn--black { background: #1a1a1a; }
.color-btn--blue  { background: #1e3a8a; }
.color-btn--red   { background: #dc2626; }
.thickness-slider {
  -webkit-appearance: none;
  height: 4px;
  border-radius: 4px;
  background: var(--border);
  outline: none;
  width: 100px;
}
.thickness-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
.draw-actions {
  display: flex;
  gap: 8px;
  margin-left: auto;
}

/* Type Tab – Font Selector */
.type-input-row {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  align-items: flex-end;
}
.type-input-row .form-group { flex: 1; margin: 0; }
.font-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  max-height: 400px;
  overflow-y: auto;
  padding-right: 4px;
}
.font-card {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg);
  text-align: center;
  overflow: hidden;
}
.font-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
}
.font-card.selected {
  border-color: var(--primary);
  background: rgba(30,58,95,0.04);
  box-shadow: 0 0 0 3px rgba(30,58,95,0.1);
}
.font-card-name {
  font-size: 1.5rem;
  line-height: 1.3;
  color: var(--text);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.font-card-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-family: 'Inter', sans-serif;
}

/* Upload Tab */
.upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.upload-area:hover, .upload-area.dragover {
  border-color: var(--primary);
  background: rgba(30,58,95,0.03);
}
.upload-area input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.upload-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}
.upload-area h3 { margin-bottom: 8px; }
.upload-area p { font-size: 0.9rem; }
.upload-preview {
  margin-top: 24px;
  display: none;
  gap: 24px;
  flex-wrap: wrap;
}
.upload-preview.visible { display: flex; }
.upload-preview-item {
  flex: 1;
  min-width: 200px;
  text-align: center;
}
.upload-preview-item p {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.preview-canvas-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: repeating-conic-gradient(#ddd 0% 25%, #fff 0% 50%) 0 0 / 20px 20px;
}
[data-theme="dark"] .preview-canvas-wrap {
  background: repeating-conic-gradient(#2a2a2a 0% 25%, #111 0% 50%) 0 0 / 20px 20px;
}

/* Download Bar */
.download-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-top: 24px;
  flex-wrap: wrap;
}
.download-bar p {
  font-weight: 600;
  color: var(--text);
  flex: 1;
  min-width: 140px;
}
.premium-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--primary-dark);
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Premium modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.modal {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 480px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95) translateY(20px);
  transition: transform var(--transition);
  text-align: center;
  position: relative;
}
.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: none;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition);
}
.modal-close:hover { background: var(--bg-secondary); color: var(--text); }
.modal-icon { font-size: 3rem; margin-bottom: 16px; }
.modal h2 { margin-bottom: 12px; }
.modal p { margin-bottom: 24px; }
.modal-features {
  text-align: left;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 24px;
}
.modal-features li {
  padding: 6px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.modal-features li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* ---------- Email Signature Generator ---------- */
.sig-layout {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 32px;
  align-items: start;
}
.sig-form-panel {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.sig-form-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}
.sig-form-header h3 { font-size: 1rem; margin: 0; }
.sig-form-body {
  padding: 24px;
  max-height: calc(100vh - var(--header-h) - 180px);
  overflow-y: auto;
}
.sig-preview-panel {}
.sig-templates {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.sig-template-btn {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 8px;
  cursor: pointer;
  background: var(--bg);
  transition: all var(--transition);
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-family: inherit;
}
.sig-template-btn:hover { border-color: var(--primary-light); }
.sig-template-btn.active {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(30,58,95,0.04);
}
.sig-template-preview {
  height: 48px;
  border-radius: 6px;
  margin-bottom: 8px;
  position: relative;
  overflow: hidden;
}
.sig-preview-frame {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  min-height: 200px;
  box-shadow: var(--shadow-sm);
  overflow: auto;
}
[data-theme="dark"] .sig-preview-frame {
  background: #1e2a3a;
}
.sig-preview-iframe {
  width: 100%;
  min-height: 200px;
  border: none;
  display: block;
}
.sig-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.copy-success {
  display: none;
  align-items: center;
  gap: 6px;
  color: #16a34a;
  font-weight: 600;
  font-size: 0.9rem;
}
.copy-success.visible { display: flex; }

/* ---------- Forms ---------- */
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(45,90,143,0.12);
}
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control {
  resize: vertical;
  min-height: 100px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.color-picker-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.color-picker-row input[type="color"] {
  width: 48px;
  height: 36px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px;
  cursor: pointer;
  background: var(--bg);
}
.color-presets {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.color-preset {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}
.color-preset:hover, .color-preset.active {
  border-color: var(--text);
  transform: scale(1.15);
}
.photo-upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  cursor: pointer;
  position: relative;
  transition: all var(--transition);
}
.photo-upload-area:hover { border-color: var(--primary); }
.photo-upload-area input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.photo-preview {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto;
  border: 2px solid var(--border);
  display: none;
}
.photo-preview.visible { display: block; }
.social-links-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* ---------- Blog ---------- */
.blog-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}
.blog-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}
.blog-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--primary-light);
}
.blog-card-img {
  width: 100%;
  height: 160px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.blog-card-body { padding: 24px; }
.blog-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.blog-tag {
  background: rgba(30,58,95,0.08);
  color: var(--primary-light);
  padding: 2px 10px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.75rem;
}
.blog-card h3 { margin-bottom: 8px; font-size: 1.05rem; }
.blog-card p { font-size: 0.9rem; margin-bottom: 16px; }
.read-more {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary-light);
  display: flex;
  align-items: center;
  gap: 4px;
}
.read-more:hover { gap: 8px; }

/* Blog Article */
.article-header {
  padding: 60px 0 40px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
}
.article-body h2 {
  margin: 36px 0 16px;
  font-size: 1.5rem;
}
.article-body h3 {
  margin: 28px 0 12px;
  font-size: 1.2rem;
}
.article-body p { margin-bottom: 16px; }
.article-body ul, .article-body ol {
  margin: 16px 0 16px 24px;
}
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 8px; color: var(--text-secondary); }
.article-body strong { color: var(--text); }
.article-body .tip-box {
  background: rgba(30,58,95,0.06);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px;
  margin: 24px 0;
}
.article-body .tip-box p { margin: 0; }
.sidebar-widget {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 24px;
}
.sidebar-widget h4 { margin-bottom: 12px; }
.sidebar-article-list { display: flex; flex-direction: column; gap: 12px; }
.sidebar-article-link {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--text);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition);
}
.sidebar-article-link:hover { color: var(--primary-light); }
.sidebar-article-link span { font-size: 1.3rem; flex-shrink: 0; }

/* ---------- Pricing ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  max-width: 820px;
  margin: 0 auto;
}
.pricing-card {
  border: 2px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  background: var(--bg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}
.pricing-badge {
  position: absolute;
  top: 20px;
  right: -28px;
  background: var(--accent);
  color: var(--primary-dark);
  padding: 4px 48px;
  font-size: 0.75rem;
  font-weight: 700;
  transform: rotate(45deg);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.pricing-plan-name {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.pricing-featured .pricing-plan-name { color: var(--primary-light); }
.pricing-price {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  margin-bottom: 8px;
}
.pricing-currency {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  padding-bottom: 6px;
}
.pricing-amount {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
}
.pricing-period {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding-bottom: 8px;
}
.pricing-alt {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.pricing-alt strong { color: var(--accent-dark); }
.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 24px 0 32px;
}
.pricing-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.pricing-feature-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
}
.pricing-feature-icon.check {
  background: rgba(22,163,74,0.1);
  color: #16a34a;
}
.pricing-feature-icon.cross {
  background: rgba(220,38,38,0.1);
  color: #dc2626;
}
.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  font-size: 0.9rem;
  font-weight: 500;
}
.toggle-switch {
  width: 52px;
  height: 28px;
  background: var(--border);
  border-radius: 100px;
  cursor: pointer;
  position: relative;
  transition: background var(--transition);
}
.toggle-switch.on { background: var(--primary); }
.toggle-switch::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  background: #fff;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: transform var(--transition);
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
.toggle-switch.on::after { transform: translateX(24px); }

/* ---------- Static Pages ---------- */
.page-hero {
  padding: 60px 0 48px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.page-hero h1 { margin-bottom: 12px; }
.page-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 60px 24px;
}
.page-content h2 {
  margin: 32px 0 12px;
  font-size: 1.3rem;
}
.page-content p, .page-content li {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}
.page-content ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 16px;
}

/* Contact form */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 48px;
  align-items: start;
}
.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}
.contact-info-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.contact-info-item h4 { margin-bottom: 4px; font-size: 0.95rem; }
.contact-info-item p { font-size: 0.9rem; margin: 0; }
.contact-form-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.8);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .logo-text { color: #fff; }
.footer-brand p {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  margin-top: 12px;
  line-height: 1.7;
}
.footer-privacy-note {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  background: rgba(255,255,255,0.06);
  padding: 6px 12px;
  border-radius: 100px;
  margin-top: 16px;
}
.footer-col h4 {
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--accent); }
.footer-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 24px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom p {
  color: rgba(255,255,255,0.4);
  font-size: 0.82rem;
}
.footer-bottom-links {
  display: flex;
  gap: 20px;
}
.footer-bottom-links a {
  color: rgba(255,255,255,0.4);
  font-size: 0.82rem;
}
.footer-bottom-links a:hover { color: rgba(255,255,255,0.8); }

/* ---------- Toast Notification ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 14px 20px;
  background: var(--text);
  color: var(--bg);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 3000;
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 320px;
}
.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* ---------- Misc Utilities ---------- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-blue   { background: rgba(30,58,95,0.1); color: var(--primary-light); }
.badge-gold   { background: rgba(212,168,67,0.15); color: var(--accent-dark); }
.badge-green  { background: rgba(22,163,74,0.1); color: #16a34a; }
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ============================================================
   RESPONSIVE DESIGN
   ============================================================ */
@media (max-width: 1024px) {
  .blog-layout    { grid-template-columns: 1fr; }
  .blog-sidebar   { position: static; }
  .sig-layout     { grid-template-columns: 1fr; }
  .sig-form-panel { position: static; }
  .contact-layout { grid-template-columns: 1fr; }
  .footer-grid    { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .section { padding: 56px 0; }

  /* Header */
  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
    z-index: 999;
  }
  .nav.open .nav-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding: 0 0 0 16px;
    margin-top: 4px;
  }
  .nav-toggle { display: flex; }
  .header-actions .btn { display: none; }

  /* Steps */
  .steps-grid { grid-template-columns: 1fr; }
  .steps-grid::before { display: none; }

  /* Pricing */
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }

  /* Tool */
  .tool-tabs { width: 100%; }
  .tool-tab  { flex: 1; justify-content: center; padding: 10px 12px; font-size: 0.82rem; }
  .draw-controls { flex-direction: column; align-items: flex-start; }
  .draw-actions  { margin-left: 0; width: 100%; justify-content: flex-end; }
  .font-grid { grid-template-columns: 1fr 1fr; }
  .download-bar { flex-direction: column; align-items: flex-start; }
  .sig-templates { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }

  /* Blog */
  .blog-grid { grid-template-columns: 1fr; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero { padding: 64px 0 48px; }
  .hero-cta { flex-direction: column; align-items: center; }
  .hero-cta .btn { width: 100%; max-width: 320px; justify-content: center; }
  .affiliate-links { flex-direction: column; }
  .sig-templates { grid-template-columns: 1fr 1fr 1fr; }
  .social-links-grid { grid-template-columns: 1fr; }
  .type-input-row { flex-direction: column; align-items: stretch; }
  .font-grid { grid-template-columns: 1fr; }
}