/* ============================================
   DoctorClaw Website — Stylesheet
   ============================================ */

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

:root {
  /* Primary palette — sage/teal inspired by the app */
  --color-primary: #4a7c6f;
  --color-primary-dark: #3a6259;
  --color-primary-light: #5e9a8a;
  --color-primary-subtle: #e8f2ee;
  --color-primary-ghost: #f4f9f7;

  /* Accent */
  --color-accent: #a8d5ba;
  --color-accent-dark: #7bbf96;

  /* Neutrals */
  --color-bg: #fafaf8;
  --color-surface: #ffffff;
  --color-surface-raised: #ffffff;
  --color-border: #e5e5e0;
  --color-border-light: #f0f0ec;
  --color-text: #1a1a1a;
  --color-text-secondary: #5a5a56;
  --color-text-tertiary: #8a8a84;
  --color-text-inverse: #ffffff;

  /* Feature card accents */
  --color-blue: #4a7c9f;
  --color-blue-bg: #e8f0f7;
  --color-purple: #7c5e9f;
  --color-purple-bg: #f0e8f7;
  --color-amber: #9f8a4a;
  --color-amber-bg: #f7f2e8;
  --color-rose: #9f5e6f;
  --color-rose-bg: #f7e8ee;
  --color-teal: #4a9f8a;
  --color-teal-bg: #e8f7f2;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* Spacing scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.04), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.06), 0 4px 10px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 50px rgba(0,0,0,0.08), 0 8px 20px rgba(0,0,0,0.04);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-primary-ghost);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  color: var(--color-primary-dark);
}

pre code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: 0.85rem;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-sans);
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn--lg {
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
}

/* --- Section Utilities --- */
.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  padding: 0.375rem 0.875rem;
  border-radius: 100px;
  margin-bottom: var(--space-lg);
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

.section-subtitle {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 600px;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 250, 248, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
}

.nav--scrolled {
  border-bottom-color: var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

.nav__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--color-text);
}

.nav__logo-icon {
  width: 32px;
  height: 32px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 450;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__link:hover {
  color: var(--color-text);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: width var(--transition-base);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__github {
  display: flex;
  align-items: center;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.nav__github:hover {
  color: var(--color-text);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: all var(--transition-fast);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  padding: calc(64px + var(--space-5xl)) 0 var(--space-5xl);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__gradient {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse, var(--color-primary-subtle) 0%, transparent 70%);
  opacity: 0.6;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border-light) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.5;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 100%);
}

.hero__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.5rem 1rem;
  border-radius: 100px;
  margin-bottom: var(--space-xl);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent-dark);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero__title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

.hero__title-accent {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 520px;
}

.hero__actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
  flex-wrap: wrap;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.hero__stat {
  display: flex;
  flex-direction: column;
}

.hero__stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}

.hero__stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

.hero__stat-divider {
  width: 1px;
  height: 32px;
  background: var(--color-border);
}

/* --- Hero Terminal Mock --- */
.hero__visual {
  position: relative;
}

.hero__terminal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.hero__terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--color-primary-ghost);
  border-bottom: 1px solid var(--color-border-light);
}

.hero__terminal-dots {
  display: flex;
  gap: 6px;
}

.hero__terminal-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
}

.hero__terminal-dots span:first-child { background: #f87171; }
.hero__terminal-dots span:nth-child(2) { background: #fbbf24; }
.hero__terminal-dots span:last-child { background: #34d399; }

.hero__terminal-title {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text);
}

.hero__terminal-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

.hero__terminal-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #34d399;
}

.hero__terminal-tabs {
  display: flex;
  align-items: center;
  padding: 0 0.75rem;
  background: var(--color-primary-ghost);
  border-bottom: 1px solid var(--color-border-light);
  gap: 2px;
}

.hero__terminal-tab {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  border-bottom: 2px solid transparent;
  cursor: default;
}

.hero__terminal-tab--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 500;
}

.hero__terminal-tab-add {
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
  cursor: default;
}

.hero__terminal-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 200px;
}

.hero__terminal-message-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.375rem;
}

.hero__terminal-message--user .hero__terminal-message-label {
  color: var(--color-text-tertiary);
}

.hero__terminal-message--bot .hero__terminal-message-label {
  color: var(--color-primary);
}

.hero__terminal-message--user .hero__terminal-message-text {
  background: var(--color-primary-ghost);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--color-text);
}

.hero__terminal-message--bot .hero__terminal-message-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.hero__terminal-message--bot .hero__terminal-message-text code {
  font-size: 0.8em;
}

.hero__terminal-action {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.625rem 1rem;
  background: var(--color-primary-subtle);
  border: 1px solid rgba(74, 124, 111, 0.2);
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  color: var(--color-primary-dark);
  font-weight: 500;
}

.hero__terminal-action-icon {
  display: flex;
}

.hero__terminal-input {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--color-border-light);
  gap: var(--space-sm);
}

.hero__terminal-input input {
  flex: 1;
  border: none;
  outline: none;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  background: transparent;
}

.hero__terminal-input input::placeholder {
  color: var(--color-text-tertiary);
}

.hero__terminal-send {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border: none;
  border-radius: 50%;
  cursor: default;
}

/* ============================================
   Social Proof
   ============================================ */
.social-proof {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  background: var(--color-surface);
}

.social-proof__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  text-align: center;
}

.social-proof__text {
  font-size: 1.1875rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 700px;
  margin: 0 auto;
}

.social-proof__text em {
  color: var(--color-primary);
  font-style: italic;
}

/* ============================================
   Features
   ============================================ */
.features {
  padding: var(--space-5xl) 0;
}

.features__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.features__header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.features__header .section-subtitle {
  margin: 0 auto;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
}

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

.feature-card--wide {
  grid-column: span 2;
}

.feature-card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.feature-card__icon svg {
  width: 22px;
  height: 22px;
}

.feature-card__icon--green { background: var(--color-primary-subtle); color: var(--color-primary); }
.feature-card__icon--blue { background: var(--color-blue-bg); color: var(--color-blue); }
.feature-card__icon--purple { background: var(--color-purple-bg); color: var(--color-purple); }
.feature-card__icon--amber { background: var(--color-amber-bg); color: var(--color-amber); }
.feature-card__icon--rose { background: var(--color-rose-bg); color: var(--color-rose); }
.feature-card__icon--teal { background: var(--color-teal-bg); color: var(--color-teal); }

.feature-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.feature-card__desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* ============================================
   How It Works
   ============================================ */
.how-it-works {
  padding: var(--space-5xl) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.how-it-works__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.how-it-works__header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.how-it-works__header .section-subtitle {
  margin: 0 auto;
}

.how-it-works__steps {
  max-width: 800px;
  margin: 0 auto;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.step__number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary-subtle);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.step__content {
  padding-top: 0.5rem;
}

.step__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.step__desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.step__visual {
  padding-top: 0.25rem;
}

.step__connector {
  display: flex;
  justify-content: center;
  padding: var(--space-md) 0;
  padding-left: 1.5rem;
}

.step__chat-bubble {
  padding: 0.875rem 1.125rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  line-height: 1.5;
}

.step__chat-bubble--user {
  background: var(--color-primary-ghost);
  color: var(--color-text);
  border: 1px solid var(--color-border-light);
}

.step__chat-bubble--bot {
  background: var(--color-surface);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.step__action-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  font-size: 0.875rem;
}

.step__action-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--space-sm);
  font-size: 0.8125rem;
}

.step__action-card code {
  display: block;
  background: var(--color-bg);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  margin-bottom: var(--space-md);
  color: var(--color-text);
  overflow-x: auto;
}

.step__action-buttons {
  display: flex;
  gap: var(--space-sm);
}

.step__action-btn {
  padding: 0.375rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: none;
  cursor: default;
  font-family: var(--font-sans);
}

.step__action-btn--approve {
  background: var(--color-primary);
  color: white;
}

.step__action-btn--deny {
  background: var(--color-border-light);
  color: var(--color-text-secondary);
}

/* ============================================
   Safety
   ============================================ */
.safety {
  padding: var(--space-5xl) 0;
}

.safety__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.safety__header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.safety__header .section-subtitle {
  margin: 0 auto;
}

.safety__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.safety-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
}

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

.safety-card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.safety-card__icon svg {
  width: 22px;
  height: 22px;
}

.safety-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.safety-card__desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.safety-card__desc code {
  font-size: 0.8em;
}

/* ============================================
   Get Started
   ============================================ */
.get-started {
  padding: var(--space-5xl) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
}

.get-started__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.get-started__header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.get-started__header .section-subtitle {
  margin: 0 auto;
}

.get-started__options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  max-width: 900px;
  margin: 0 auto;
}

.install-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.install-card__header {
  padding: var(--space-2xl) var(--space-2xl) var(--space-lg);
}

.install-card__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  padding: 0.25rem 0.625rem;
  border-radius: 100px;
  margin-bottom: var(--space-md);
}

.install-card__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.install-card__desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.install-card__tabs {
  display: flex;
  padding: 0 var(--space-2xl);
  gap: 2px;
}

.install-card__tab {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  font-family: var(--font-sans);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--color-text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.install-card__tab:hover {
  color: var(--color-text-secondary);
}

.install-card__tab--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.install-card__code {
  position: relative;
  margin: var(--space-md) var(--space-2xl) var(--space-2xl);
  background: #1e293b;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.install-card__code pre {
  padding: 1.25rem;
  overflow-x: auto;
  color: #e2e8f0;
  line-height: 1.7;
}

.install-card__code .code-comment {
  color: #64748b;
}

.install-card__copy {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #94a3b8;
  padding: 0.375rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.install-card__copy:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #e2e8f0;
}

.install-card--alt .install-card__code {
  margin-top: 0;
}

.install-card__requirements {
  padding: 0 var(--space-2xl) var(--space-2xl);
}

.install-card__requirements h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.install-card__requirements ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.install-card__requirements li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: var(--space-4xl) 0 var(--space-2xl);
  background: var(--color-bg);
  border-top: 1px solid var(--color-border-light);
}

.footer__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.footer__top {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-3xl);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.footer__logo-icon {
  width: 32px;
  height: 32px;
}

.footer__tagline {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  max-width: 300px;
  line-height: 1.5;
}

.footer__links {
  display: flex;
  gap: var(--space-4xl);
}

.footer__link-group h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-md);
}

.footer__link-group a {
  display: block;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  transition: color var(--transition-fast);
}

.footer__link-group a:hover {
  color: var(--color-primary);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border-light);
}

.footer__bottom p {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

.footer__github {
  color: var(--color-text-tertiary);
  transition: color var(--transition-fast);
  display: flex;
}

.footer__github:hover {
  color: var(--color-text);
}

/* ============================================
   Scroll Animations
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .hero__container {
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
  }

  .hero__visual {
    max-width: 560px;
    margin: 0 auto;
  }

  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-card--wide {
    grid-column: span 2;
  }

  .safety__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .step {
    grid-template-columns: auto 1fr;
    gap: var(--space-lg);
  }

  .step__visual {
    grid-column: 2;
  }
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: var(--space-lg) var(--space-xl);
    gap: var(--space-md);
    box-shadow: var(--shadow-lg);
  }

  .nav__links.active {
    display: flex;
  }

  .nav__hamburger {
    display: flex;
  }

  .nav__actions .btn {
    display: none;
  }

  .hero {
    padding-top: calc(64px + var(--space-3xl));
    padding-bottom: var(--space-3xl);
  }

  .hero__stats {
    flex-wrap: wrap;
    gap: var(--space-lg);
  }

  .hero__stat-divider {
    display: none;
  }

  .features__grid {
    grid-template-columns: 1fr;
  }

  .feature-card--wide {
    grid-column: span 1;
  }

  .safety__grid {
    grid-template-columns: 1fr;
  }

  .step {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .step__number {
    font-size: 2rem;
  }

  .step__visual {
    grid-column: 1;
  }

  .step__connector {
    padding-left: 0;
  }

  .get-started__options {
    grid-template-columns: 1fr;
  }

  .footer__top {
    flex-direction: column;
    gap: var(--space-2xl);
  }

  .footer__links {
    gap: var(--space-2xl);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
    justify-content: center;
  }

  .install-card__code {
    margin-left: var(--space-md);
    margin-right: var(--space-md);
  }

  .install-card__header {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  .install-card__tabs {
    padding: 0 var(--space-lg);
  }

  .install-card__requirements {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }
}