/* ==========================================================================
   Form Secretary - Official Website Stylesheet
   Theme: Slate, Crisp Royal Blue Gradient, Emerald Success Accents
   Fully responsive across mobile (320px+), tablet, and desktop viewports.
   Zero dependencies, lightweight, high performance, SEO-ready.
   ========================================================================== */

:root {
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;
  --bg-card-hover: #f8fafc;
  --bg-dark: #0f172a;
  --bg-dark-card: #1e293b;
  --bg-dark-border: #334155;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-light: #f8fafc;
  --text-light-muted: #94a3b8;

  --brand-blue: #2563eb;
  --brand-blue-light: #3b82f6;
  --brand-blue-dark: #1d4ed8;
  --brand-blue-subtle: #eff6ff;
  --brand-blue-border: #bfdbfe;

  --brand-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  --brand-gradient-hover: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);

  --emerald-success: #10b981;
  --emerald-subtle: #ecfdf5;
  --emerald-border: #a7f3d0;

  --border-light: #e2e8f0;
  --border-subtle: #cbd5e1;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-brand: 0 4px 14px rgba(37, 99, 235, 0.25);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
  position: relative;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: var(--border-subtle);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Typography Base with Fluid Scaling */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.025em;
  overflow-wrap: break-word;
  word-break: break-word;
}

h1 {
  font-size: clamp(2.1rem, 4.8vw, 3rem);
  letter-spacing: -0.035em;
  line-height: 1.18;
}

h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.15rem);
  margin-bottom: 0.75rem;
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  margin-bottom: 0.5rem;
}

p {
  color: var(--text-secondary);
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  line-height: 1.65;
  overflow-wrap: break-word;
}

a {
  color: var(--brand-blue);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--brand-blue-dark);
}

code, pre {
  font-family: var(--font-mono);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border-light);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.25rem auto;
}

.section-header .badge {
  margin-bottom: 0.75rem;
}

.section-header p {
  font-size: clamp(1rem, 1.8vw, 1.125rem);
  color: var(--text-secondary);
}

/* Badges & Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background-color: var(--brand-blue-subtle);
  color: var(--brand-blue-dark);
  border: 1px solid var(--brand-blue-border);
}

.badge.badge-success {
  background-color: var(--emerald-subtle);
  color: #065f46;
  border-color: var(--emerald-border);
}

.badge.badge-warning {
  background-color: #fef3c7;
  color: #92400e;
  border-color: #fde68a;
}

.badge.badge-neutral {
  background-color: #f1f5f9;
  color: #334155;
  border-color: #cbd5e1;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  white-space: nowrap;
  min-height: 42px;
}

.btn-primary {
  background: var(--brand-gradient);
  color: #ffffff;
  box-shadow: var(--shadow-sm), var(--shadow-brand);
}

.btn-primary:hover {
  background: var(--brand-gradient-hover);
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--text-primary);
  border-color: var(--border-light);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: #f8fafc;
  border-color: var(--border-subtle);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: translateY(0);
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  min-height: 36px;
}

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  width: 100%;
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.mobile-toggle {
  display: none;
  background: #ffffff;
  border: 1px solid var(--border-light);
  padding: 0.45rem;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  min-height: 38px;
  transition: background-color 0.15s ease;
}

.mobile-toggle:hover {
  background-color: #f1f5f9;
}

/* Hero Section */
.hero-section {
  padding: 4.5rem 0 4.5rem 0;
  background: radial-gradient(circle at top right, rgba(219, 234, 254, 0.45) 0%, transparent 60%);
  border-bottom: 1px solid var(--border-light);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}

.hero-content h1 {
  margin: 1rem 0 1.25rem 0;
}

.hero-lead {
  font-size: clamp(1.05rem, 1.8vw, 1.15rem);
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 0;
}

/* Hero Image Preview */
.hero-preview {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.hero-image-wrapper {
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 36px -6px rgba(15, 23, 42, 0.14), 0 6px 12px -3px rgba(15, 23, 42, 0.08);
  padding: 0.5rem;
  overflow: hidden;
  max-width: 380px;
  width: 100%;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hero-image-wrapper:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 44px -8px rgba(15, 23, 42, 0.18), 0 8px 16px -4px rgba(15, 23, 42, 0.1);
}

.hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
  object-fit: contain;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  transform: translateZ(0);
}

/* Feature Grid & Cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.feature-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: clamp(1.35rem, 2.5vw, 1.75rem);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--brand-blue-subtle);
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  border: 1px solid var(--brand-blue-border);
  flex-shrink: 0;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Architecture & Deep Dive Section */
.arch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.arch-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2rem);
  box-shadow: var(--shadow-sm);
}

.arch-steps {
  list-style: none;
  margin-top: 1.5rem;
}

.arch-step-item {
  position: relative;
  padding-left: 2.25rem;
  margin-bottom: 1.5rem;
}

.arch-step-item:last-child {
  margin-bottom: 0;
}

.arch-step-num {
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--brand-blue);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.arch-step-item h4 {
  font-size: 0.975rem;
  margin-bottom: 0.25rem;
}

.arch-step-item p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Code Snippet Box */
.code-container {
  background-color: var(--bg-dark);
  border: 1px solid var(--bg-dark-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 100%;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  background-color: #0b1120;
  border-bottom: 1px solid var(--bg-dark-border);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.code-title {
  font-family: var(--font-mono);
  font-size: 0.785rem;
  color: var(--text-light-muted);
}

.code-copy-btn {
  background: none;
  border: 1px solid var(--bg-dark-border);
  color: var(--text-light-muted);
  font-size: 0.75rem;
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.code-copy-btn:hover {
  color: var(--text-light);
  border-color: #64748b;
}

.code-content {
  padding: clamp(1rem, 2.5vw, 1.25rem);
  font-family: var(--font-mono);
  font-size: clamp(0.75rem, 1.8vw, 0.85rem);
  color: #e2e8f0;
  line-height: 1.6;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  word-break: normal;
}

.code-keyword { color: #f472b6; }
.code-func { color: #60a5fa; }
.code-string { color: #34d399; }
.code-comment { color: #64748b; font-style: italic; }
.code-var { color: #fbbf24; }

/* Use Cases Section */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.usecase-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: clamp(1.35rem, 2.5vw, 2rem);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.usecase-header {
  margin-bottom: 1.25rem;
}

.usecase-header h3 {
  font-size: 1.2rem;
  margin-top: 0.5rem;
}

.usecase-list {
  list-style: none;
  margin: 1rem 0;
  flex-grow: 1;
}

.usecase-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.65rem;
}

.usecase-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--emerald-success);
  font-weight: 700;
}

/* Screenshot Cards in Interface Showcase */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  align-items: stretch;
}

.showcase-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
}

.showcase-card:hover {
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.showcase-img-box {
  background: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
  border-bottom: 1px solid var(--border-light);
  padding: 1.5rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 380px;
  overflow: hidden;
}

.showcase-img {
  max-height: 340px;
  max-width: 92%;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 1px solid rgba(15, 23, 42, 0.1);
  box-shadow: 0 12px 28px -4px rgba(15, 23, 42, 0.14), 0 4px 10px -2px rgba(15, 23, 42, 0.08);
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  transform: translateZ(0);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.showcase-card:hover .showcase-img {
  transform: translateY(-4px) scale(1.02);
}

.showcase-details {
  padding: clamp(1.15rem, 2.5vw, 1.5rem);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.showcase-details h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.showcase-details p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Installation Tabs Section */
.install-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  max-width: 860px;
  margin: 0 auto;
}

.tabs-nav {
  display: flex;
  background-color: #f8fafc;
  border-bottom: 1px solid var(--border-light);
  padding: 0.5rem 0.75rem 0 0.75rem;
  gap: 0.35rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.tabs-nav::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  padding: 0.65rem 1.15rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  border-bottom: none;
  border-top-left-radius: var(--radius-sm);
  border-top-right-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

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

.tab-btn.active {
  background-color: #ffffff;
  color: var(--brand-blue-dark);
  border-color: var(--border-light);
  box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.02);
}

.tab-panel {
  display: none;
  padding: clamp(1.35rem, 3vw, 2rem);
}

.tab-panel.active {
  display: block;
}

.install-steps {
  list-style: none;
}

.install-step {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.25rem;
  align-items: flex-start;
}

.install-step:last-child {
  margin-bottom: 0;
}

.step-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background-color: var(--brand-blue-subtle);
  color: var(--brand-blue-dark);
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--brand-blue-border);
  margin-top: 2px;
}

.step-text {
  flex-grow: 1;
  min-width: 0;
}

.step-text p {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.step-text code {
  background-color: #f1f5f9;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85rem;
  color: var(--brand-blue-dark);
  word-break: break-word;
}

/* Interactive Click-to-Copy Command Blocks */
.copyable-command {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #0f172a;
  color: #f8fafc;
  border: 1px solid #1e293b;
  border-radius: 8px;
  padding: 0.65rem 0.95rem;
  margin-top: 0.5rem;
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  gap: 0.75rem;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

.copyable-command:hover {
  background-color: #1e293b;
  border-color: #3b82f6;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.18);
  transform: translateY(-1px);
}

.copyable-command:active {
  transform: translateY(0);
}

.copyable-command code {
  color: #e2e8f0;
  background: transparent;
  padding: 0;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  overflow-x: auto;
  white-space: nowrap;
  user-select: all;
}

.copy-action-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: rgba(255, 255, 255, 0.08);
  color: #94a3b8;
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-sans);
  flex-shrink: 0;
  transition: all 0.15s ease;
}

.copyable-command:hover .copy-action-pill {
  background-color: var(--brand-blue);
  color: #ffffff;
}

.copy-action-pill .icon-check {
  display: none;
}

/* Success state on copy */
.copyable-command.copied {
  background-color: #064e3b;
  border-color: #10b981;
}

.copyable-command.copied .copy-action-pill {
  background-color: #10b981;
  color: #ffffff;
}

.copyable-command.copied .icon-copy {
  display: none;
}

.copyable-command.copied .icon-check {
  display: inline-block;
}

/* Inline Click-to-Copy elements */
.copyable-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background-color: #eff6ff;
  color: var(--brand-blue-dark);
  border: 1px solid var(--brand-blue-border);
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: var(--font-mono);
}

.copyable-inline:hover {
  background-color: #dbeafe;
  border-color: var(--brand-blue);
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.15);
  transform: translateY(-1px);
}

.copyable-inline:active {
  transform: translateY(0);
}

.copyable-inline.copied {
  background-color: #d1fae5;
  color: #065f46;
  border-color: #10b981;
}

/* Inline Clickable Link with New Tab Icon */
.copyable-inline-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: #eff6ff;
  color: var(--brand-blue-dark);
  border: 1px solid var(--brand-blue-border);
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  font-size: 0.85rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
  vertical-align: middle;
}

.copyable-inline-link code {
  color: var(--brand-blue-dark);
  background: transparent;
  padding: 0;
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.copyable-inline-link svg {
  color: var(--brand-blue);
  flex-shrink: 0;
  transition: transform 0.15s ease;
}

.copyable-inline-link:hover {
  background-color: #dbeafe;
  border-color: var(--brand-blue);
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.15);
  transform: translateY(-1px);
}

.copyable-inline-link:hover svg {
  transform: translate(1px, -1px);
}

.copyable-inline-link:active {
  transform: translateY(0);
}

.copyable-inline-link.copied {
  background-color: #d1fae5;
  color: #065f46;
  border-color: #10b981;
}

.copyable-inline-link.copied code {
  color: #065f46;
}

.copyable-inline-link.copied svg {
  color: #065f46;
}

/* CTA Banner */
.cta-banner {
  background: var(--bg-dark);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: clamp(2.25rem, 5vw, 3.5rem) clamp(1.25rem, 3vw, 2rem);
  text-align: center;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  color: #ffffff;
  font-size: clamp(1.6rem, 3.8vw, 2.25rem);
  margin-bottom: 1rem;
}

.cta-banner p {
  color: var(--text-light-muted);
  max-width: 600px;
  margin: 0 auto 2rem auto;
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
}

.cta-banner-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Compact Minimal Footer */
.footer {
  background-color: #ffffff;
  border-top: 1px solid var(--border-light);
  padding: 1.75rem 0;
}

.footer-compact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.footer-left .brand {
  font-size: 1rem;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--brand-blue);
}

/* Toast Notifications */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: var(--bg-dark);
  color: #ffffff;
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 100;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  max-width: calc(100vw - 48px);
}

.toast-notice.show {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Comprehensive Responsive Media Queries
   ========================================================================== */

/* Medium Devices (Tablets & Small Laptops, 769px - 1024px) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.25rem;
  }
  .features-grid,
  .usecase-grid,
  .showcase-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .arch-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .showcase-img-box {
    height: 320px;
  }
}

/* Small Tablets & Large Phones (<= 860px) */
@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: left;
  }
  .hero-preview {
    margin-top: 1rem;
  }
  .hero-image-wrapper {
    max-width: 420px;
    margin: 0 auto;
  }
}

/* Mobile Devices (<= 768px) */
@media (max-width: 768px) {
  .container {
    padding: 0 1.25rem;
  }

  .section {
    padding: 3.5rem 0;
  }

  .section-header {
    margin-bottom: 2.5rem;
  }

  /* Mobile Navigation Menu Dropdown */
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 16px 28px -4px rgba(15, 23, 42, 0.12);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem 1.25rem 1.25rem;
    gap: 0.35rem;
    z-index: 99;
  }

  .nav-links.open {
    display: flex;
    animation: mobileMenuSlide 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  }

  @keyframes mobileMenuSlide {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .nav-link {
    padding: 0.75rem 0.5rem;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
  }

  .nav-link:hover {
    background-color: #f1f5f9;
  }

  .mobile-toggle {
    display: inline-flex;
  }

  /* Grid Reductions to Single Column */
  .features-grid,
  .usecase-grid,
  .showcase-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .showcase-img-box {
    height: 300px;
  }

  /* Footer stack */
  .footer-compact {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.25rem;
  }

  .footer-left {
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem 1.5rem;
  }
}

/* Small Phones (<= 480px) */
@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .section {
    padding: 3rem 0;
  }

  .navbar-container {
    height: 3.75rem;
  }

  .brand {
    font-size: 1.05rem;
    gap: 0.5rem;
  }

  .brand-icon {
    width: 28px;
    height: 28px;
  }

  /* Header action button sizing on small phones */
  .nav-btn-github {
    display: none;
  }

  .btn-sm {
    padding: 0.35rem 0.65rem;
    font-size: 0.8rem;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .cta-banner-buttons {
    flex-direction: column;
    width: 100%;
  }

  .cta-banner-buttons .btn {
    width: 100%;
  }

  .showcase-img-box {
    height: 240px;
    padding: 1rem 0.5rem;
  }

  .showcase-img {
    max-height: 210px;
  }

  .install-card {
    border-radius: var(--radius-md);
  }

  .tab-btn {
    padding: 0.55rem 0.85rem;
    font-size: 0.825rem;
  }
}

/* Extra Small Phones (<= 360px) */
@media (max-width: 360px) {
  .brand span {
    font-size: 0.95rem;
  }
  .showcase-img-box {
    height: 210px;
  }
}