/* CSS Design System for Kliner Pro Landing */

:root {
  --bg-main: #060913;
  --bg-surface: rgba(13, 20, 38, 0.6);
  --bg-surface-hover: rgba(22, 32, 60, 0.8);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-active: rgba(255, 219, 77, 0.3);
  
  --color-primary: #ffdb4d;
  --color-primary-dark: #ffc400;
  --color-primary-glow: rgba(255, 196, 0, 0.35);
  
  --color-danger: #ef4444;
  --color-success: #10b981;
  --color-text-main: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-text-dark: #1e293b;
  
  --font-title: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-main);
  color: var(--color-text-main);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
}

body {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  width: 100%;
}

/* Blurs background */
.blur-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.blur-glow-1 {
  position: absolute;
  top: 15%;
  left: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 196, 0, 0.08) 0%, rgba(255, 196, 0, 0) 70%);
  filter: blur(80px);
}

.blur-glow-2 {
  position: absolute;
  top: 60%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, rgba(99, 102, 241, 0) 70%);
  filter: blur(100px);
}

/* Containers */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: 700;
  line-height: 1.2;
}

p {
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Header styling */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 9, 19, 0.85);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 18px;
  height: 18px;
}

.logo-text {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #fff 60%, var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text.text-light {
  background: #fff;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: #fff;
}

.nav-link.tg-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: #fff;
}

.nav-link.tg-link:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.tg-icon {
  width: 14px;
  height: 14px;
}

/* Button UI */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-text-dark);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-primary-glow);
}

.btn-glow {
  box-shadow: 0 4px 20px var(--color-primary-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-icon {
  width: 18px;
  height: 18px;
}

/* Hero Section */
.hero {
  padding: 80px 0 100px;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.badge {
  align-self: flex-start;
  padding: 6px 14px;
  border-radius: 20px;
  background: rgba(255, 219, 77, 0.1);
  border: 1px solid rgba(255, 219, 77, 0.2);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: 3.5rem;
  letter-spacing: -1.5px;
}

.hero-title span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 24px;
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-num {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
}

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

/* Visual Mockup Box */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.visual-card-glow {
  position: absolute;
  width: 90%;
  height: 90%;
  background: linear-gradient(135deg, var(--color-primary), #6366f1);
  filter: blur(40px);
  opacity: 0.15;
  z-index: 1;
}

.visual-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: rgba(15, 23, 42, 0.8);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  z-index: 2;
}

.window-header {
  background: rgba(30, 41, 59, 0.5);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border-color);
}

.window-header .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.window-header .dot.red { background: #ef4444; }
.window-header .dot.yellow { background: #f59e0b; }
.window-header .dot.green { background: #10b981; }

.window-title {
  margin-left: 8px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Chrome Extension UI Simulation */
.demo-panel {
  padding: 16px;
  font-size: 13px;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  color: #e2e8f0;
}

.demo-hdr {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.demo-logo {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
}

.demo-logo svg {
  width: 14px;
  height: 14px;
}

.demo-title {
  font-weight: 700;
  flex: 1;
  font-size: 13.5px;
}

.demo-help {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  cursor: pointer;
}

.demo-tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 14px;
}

.demo-tabs::-webkit-scrollbar {
  height: 3px;
}

.demo-tabs::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
}

.demo-tab {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  border-radius: 4px;
  transition: var(--transition-fast);
}

.demo-tab:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.demo-tab.active {
  background: #ffdb4d;
  color: #1a1a1a;
  font-weight: 600;
}

.demo-body {
  min-height: 180px;
}

.demo-pane {
  display: none;
  animation: fadeEffect 0.2s ease-in-out;
}

.demo-pane.active {
  display: block;
}

@keyframes fadeEffect {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.demo-input-group {
  margin-bottom: 10px;
}

.demo-input-group input, .demo-input-group select {
  width: 100%;
  padding: 8px 10px;
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  color: #fff;
  font-size: 12px;
}

.demo-opts {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.demo-opt {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--color-text-muted);
}

.demo-row {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.demo-btn {
  flex: 1;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  transition: var(--transition-fast);
}

.demo-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.demo-btn.primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #1a1a1a;
  border: none;
  font-weight: 600;
}

.demo-btn.primary:hover {
  background: #ffd11a;
}

.demo-btn.danger {
  background: var(--color-danger);
  color: #fff;
  border: none;
  font-weight: 600;
}

.demo-btn.danger:hover {
  background: #dc2626;
}

.demo-btn.mini {
  padding: 4px 8px;
  font-size: 10px;
}

.demo-btn.icon {
  flex: 0 0 26px;
  padding: 4px 0;
  font-size: 12px;
}

.demo-btn.block-all {
  background: rgba(255, 255, 255, 0.05);
  border: 1px dashed var(--color-primary);
  color: var(--color-primary);
}

.demo-btn.block-all:hover {
  background: rgba(255, 219, 77, 0.1);
}

.demo-cond {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  padding: 8px;
  margin-bottom: 8px;
}

.demo-cond-col {
  font-size: 11px;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.demo-cond-line {
  display: flex;
  gap: 6px;
}

.demo-cond-op {
  color: var(--color-text-muted);
}

.demo-cond-val {
  font-weight: 600;
}

.demo-logic {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.demo-section-lbl {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.demo-presets {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.demo-preset {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  padding: 8px;
}

.demo-preset-name {
  font-weight: 600;
  font-size: 12px;
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
}

.demo-preset-badge {
  background: var(--color-primary-glow);
  color: var(--color-primary);
  font-size: 9px;
  padding: 1px 6px;
  border-radius: 10px;
}

.demo-preset-actions {
  display: flex;
  gap: 4px;
}

.demo-status-box {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--color-success);
  border-radius: 6px;
  padding: 8px;
  font-size: 11px;
  margin-top: 10px;
}

.demo-log-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
  max-height: 120px;
  overflow-y: auto;
}

.demo-log-row {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 6px;
}

.demo-log-meta {
  font-size: 9px;
  color: var(--color-text-muted);
  display: flex;
  justify-content: space-between;
}

.demo-log-del {
  color: var(--color-danger);
  cursor: pointer;
}

.demo-log-desc {
  font-size: 11px;
  margin-top: 2px;
}

.demo-footer {
  margin-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 10px;
  text-align: center;
  font-size: 10px;
  color: var(--color-text-muted);
}

/* Features grid */
.features {
  padding: 100px 0;
  background: radial-gradient(100% 50% at 50% 50%, rgba(13, 20, 38, 0.3) 0%, rgba(6, 9, 19, 0) 100%);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 60px;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-surface);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  transition: var(--transition-smooth);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-color-active);
  background: var(--bg-surface-hover);
  box-shadow: 0 10px 30px rgba(255, 219, 77, 0.03);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255, 219, 77, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: #fff;
}

.feature-card p {
  font-size: 0.95rem;
}

/* Interactive Sandbox / Demo Area */
.demo-section {
  padding: 100px 0;
}

.demo-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 40px;
  margin-top: 40px;
}

.demo-tabs-nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.demo-nav-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px 20px;
  color: var(--color-text-muted);
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 1.05rem;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition-smooth);
}

.demo-nav-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
}

.demo-nav-btn.active {
  background: rgba(255, 219, 77, 0.08);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.demo-nav-btn .icon {
  font-size: 1.2rem;
}

.demo-display-card {
  background: var(--bg-surface);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 40px;
  min-height: 420px;
  display: flex;
  flex-direction: column;
}

.demo-card-content {
  display: none;
  flex-direction: column;
  gap: 20px;
  animation: fadeEffect 0.3s ease-in-out;
}

.demo-card-content.active {
  display: flex;
}

.demo-card-content h3 {
  font-size: 1.75rem;
  color: #fff;
}

.interactive-sandbox {
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  margin-top: 10px;
}

.table-simulator {
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 16px;
  font-size: 12px;
}

.table-header {
  background: rgba(255, 255, 255, 0.03);
  padding: 10px 14px;
  display: grid;
  grid-template-columns: 0.6fr minmax(0, 1.4fr) 1fr;
  font-weight: 600;
  color: var(--color-text-muted);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.filter-sim .table-header {
  grid-template-columns: 0.5fr minmax(0, 1.3fr) 0.8fr 0.6fr 0.8fr;
}

.table-row {
  padding: 10px 14px;
  display: grid;
  grid-template-columns: 0.6fr minmax(0, 1.4fr) 1fr;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition-fast);
}

.filter-sim .table-row {
  grid-template-columns: 0.5fr minmax(0, 1.3fr) 0.8fr 0.6fr 0.8fr;
}

.table-row:last-child {
  border-bottom: none;
}

.sim-checkbox {
  width: 14px;
  height: 14px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 3px;
  cursor: pointer;
  position: relative;
  display: inline-block;
}

.table-row.checked .sim-checkbox {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.table-row.checked .sim-checkbox::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 1px;
  width: 4px;
  height: 7px;
  border: solid #000;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.table-row.highlighted {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
  background: rgba(255, 219, 77, 0.08);
}

.sim-name {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sim-tag {
  justify-self: start;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 10px;
  color: var(--color-text-muted);
}

.sandbox-controls {
  display: flex;
  gap: 12px;
}

.sandbox-controls input {
  flex: 1;
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 10px 14px;
  color: #fff;
  font-size: 13px;
}

.sandbox-controls input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.filter-controls-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  flex: 1;
}

.filter-controls-row input {
  flex: none;
  padding: 8px;
}

.image-placeholder-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.glass-alert {
  background: rgba(255, 219, 77, 0.05);
  border: 1px solid rgba(255, 219, 77, 0.15);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  gap: 12px;
  align-items: center;
}

.alert-icon {
  font-size: 1.5rem;
}

.glass-alert p {
  font-size: 0.9rem;
  color: var(--color-primary);
}

.demo-list-checked {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.demo-list-checked li {
  position: relative;
  padding-left: 28px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.demo-list-checked li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.auto-flow-diagram {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  margin-top: 20px;
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.flow-step span {
  font-size: 0.85rem;
  font-weight: 500;
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary-glow);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
}

.flow-arrow {
  color: rgba(255, 255, 255, 0.15);
  font-weight: 700;
}

.markdown-preview-box {
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  font-family: monospace;
  font-size: 12px;
  line-height: 1.5;
  color: #cbd5e1;
  overflow-x: auto;
}

.markdown-preview-box pre {
  margin: 0;
}

/* Installation timeline */
.install {
  padding: 100px 0;
  background: rgba(13, 20, 38, 0.2);
  border-top: 1px solid var(--border-color);
}

.install-timeline {
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 800px;
  margin: 40px auto;
  position: relative;
}

.install-timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary) 0%, rgba(255, 219, 77, 0.1) 100%);
}

.install-step {
  display: flex;
  gap: 24px;
  position: relative;
}

.step-number-badge {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #060913;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.25rem;
  z-index: 2;
  box-shadow: 0 0 15px rgba(255, 219, 77, 0.15);
  flex-shrink: 0;
}

.step-content {
  background: var(--bg-surface);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  flex: 1;
}

.step-content h4 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: #fff;
}

.step-content p {
  font-size: 0.95rem;
}

.step-content a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.step-content a:hover {
  text-decoration: underline;
}

.step-content code {
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  color: #ffdb4d;
}

.install-security-notice {
  display: flex;
  gap: 20px;
  background: rgba(16, 185, 129, 0.05);
  border: 1px solid rgba(16, 185, 129, 0.15);
  border-radius: 16px;
  padding: 24px;
  max-width: 800px;
  margin: 40px auto 0;
  align-items: center;
}

.notice-icon {
  font-size: 2rem;
}

.notice-text {
  font-size: 0.95rem;
  color: #a7f3d0;
  line-height: 1.6;
}

.notice-text strong {
  color: #fff;
}

/* Footer styling */
.footer {
  background: #03050a;
  border-top: 1px solid var(--border-color);
  padding: 80px 0 30px;
}

.footer-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 80px;
  margin-bottom: 50px;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-desc {
  font-size: 0.95rem;
  max-width: 450px;
}

.footer-right {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-col h4 {
  font-size: 1rem;
  font-family: var(--font-title);
  color: #fff;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-col a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.footer-col a:hover {
  color: #fff;
}

.author-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: -10px;
}

.tg-author-link {
  color: var(--color-primary) !important;
  font-weight: 600;
}

.tg-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 30px;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.25);
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .hero-container {
    grid-template-columns: minmax(0, 1fr);
    text-align: center;
    gap: 48px;
  }
  
  .hero-content, .hero-visual {
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }
  
  .badge {
    align-self: center;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .demo-layout {
    grid-template-columns: 1fr;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .blur-wrapper {
    display: none;
  }

  .hero-title {
    font-size: 2.5rem;
  }
  
  .nav {
    display: none; /* simple burger menu usually needed, keep simple */
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-right {
    grid-template-columns: 1fr;
  }
  
  .install-timeline::before {
    left: 16px;
  }
  
  .step-number-badge {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.1rem;
    letter-spacing: -0.8px;
  }
  .hero-subtitle {
    font-size: 1.05rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 12px;
  }
  .hero-actions .btn {
    width: 100%;
    text-align: center;
    padding: 14px 20px;
  }
  .hero-stats {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  .demo-display-card {
    padding: 24px 16px;
    width: 100%;
    overflow: hidden;
  }
  .sandbox-controls {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .sandbox-controls .btn {
    width: 100%;
  }
  .filter-controls-row {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    width: 100%;
  }
  .filter-controls-row input {
    width: 100% !important;
  }
  .auto-flow-diagram {
    flex-direction: column;
    gap: 16px;
    padding: 16px;
  }
  .flow-arrow {
    transform: rotate(90deg);
  }
  .visual-card {
    max-width: 100%;
    width: 100%;
  }
  .demo-panel {
    padding: 12px;
  }
  .demo-row {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .demo-row .demo-btn {
    width: 100%;
  }
  .demo-preset-actions {
    flex-wrap: wrap;
    gap: 6px;
  }
  .demo-tabs-nav {
    width: 100%;
  }
  .demo-nav-btn {
    padding: 10px 12px;
    font-size: 0.85rem;
    gap: 8px;
  }
  .install-step {
    gap: 12px;
  }
  .step-content {
    padding: 16px;
  }
  .hero, .features, .demo-section, .install {
    overflow: hidden;
  }
  .demo-layout {
    width: 100%;
    overflow: hidden;
  }
  .demo-tabs {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
  }
  .demo-tab {
    flex-shrink: 0;
  }
  .demo-opts {
    flex-wrap: wrap;
    gap: 8px;
  }
}

@media (max-width: 360px) {
  .hero-title {
    font-size: 1.85rem;
  }
  .section-title {
    font-size: 1.85rem;
  }
  .demo-display-card h3 {
    font-size: 1.35rem;
  }
  .table-header, .table-row {
    font-size: 10px;
    padding: 8px 6px;
  }
  .table-header span, .table-row span {
    word-break: break-all;
  }
  .hero-actions .btn {
    font-size: 0.9rem;
    padding: 12px 16px;
  }
}