/* ============================================
   RECITO READER — Landing Page Styles
   ============================================
   Structure:
   1. Variables & Reset
   2. Global / Scrollbar
   3. Background Effects (Grain, Grid)
   4. Navigation
   5. Hero Section
   6. Numbers Section
   7. Features Section (Tabs, Canvas)
   8. Workflow Section
   9. Pricing Section (Cards)
  10. Testimonials
  11. FAQ
  12. CTA / Footer
  13. Auth Modal
  14. Dialogs
  15. Icon Animations
  16. Responsive
============================================ */

/* --- 1. VARIABLES & RESET --- */
:root {
  --bg-dark: #12100E;
  --bg-card: transparent;
  --bg-card-featured: #51221E;
  --bg-section: #161813;
  --text-beige: #EACEA9;
  --accent-red: #51221E;
  --accent-olive: #3A3F29;
  --accent-orange: #D29856;
  --border-default: #3A3F29;
  --border-hover: #D29856;
  --font-main: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

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

/* --- 2. GLOBAL / SCROLLBAR --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-olive);
  border: 1px solid var(--bg-dark);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-orange);
}

body {
  background: var(--bg-dark);
  color: var(--text-beige);
  font-family: var(--font-mono);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* --- 3. BACKGROUND EFFECTS --- */
.grain-overlay {
  position: fixed;
  inset: 0;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.8" numOctaves="3" stitchTiles="stitch"/></filter><rect width="100%" height="100%" filter="url(%23n)" opacity="0.40"/></svg>');
  pointer-events: none;
  opacity: 0.4;
  z-index: 0;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(58, 63, 41, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(58, 63, 41, 0.1) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
  pointer-events: none;
}

/* --- 4. NAVIGATION --- */
.main-nav {
  width: 100%;
  z-index: 10;
  position: relative;
  border-bottom: 1px solid var(--accent-olive);
  background: var(--bg-section);
  display: flex;
  justify-content: center;
}

.nav-content {
  width: 100%;
  max-width: 1400px;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-beige);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--accent-orange);
}

.nav-actions {
  display: flex;
  gap: 16px;
  align-items: center;
}

/* Shared nav button base */
.btn-nav-secondary,
.btn-nav-primary {
  padding: 10px 20px;
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  font-family: var(--font-main);
  transition: all 0.2s;
  cursor: pointer;
}

.btn-nav-secondary {
  border: 1px solid var(--accent-olive);
  color: var(--text-beige);
  background: transparent;
}

.btn-nav-secondary:hover {
  border-color: var(--text-beige);
  background: rgba(255, 255, 255, 0.05);
}

.btn-nav-primary {
  border: 1px solid var(--accent-orange);
  color: var(--accent-orange);
}

.btn-nav-primary:hover {
  background: var(--accent-orange);
  color: var(--bg-dark);
}

/* --- 5. HERO SECTION --- */
.hero-section {
  width: 100%;
  max-width: 1400px;
  padding: 80px 20px 100px;
  display: grid;
  grid-template-columns: 1.7fr 0.3fr;
  gap: 100px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  text-align: left;
  width: 100%;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border: 1px solid var(--accent-olive);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-orange);
  margin-bottom: 32px;
  background: rgba(58, 63, 41, 0.2);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.hero-heading {
  font-family: var(--font-main);
  font-size: 4.5rem;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -3px;
  margin-bottom: 32px;
  color: var(--text-beige);
  width: 100%;
}

/* Shared gradient-text base */
.hero-heading .gradient-text,
.section-heading .gradient-text,
.section-title .gradient-text {
  background: linear-gradient(to bottom, var(--text-beige) 20%, var(--bg-dark));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--text-beige);
}

.hero-heading .gradient-text {
  background: linear-gradient(to bottom, var(--text-beige) 30%, var(--bg-dark));
  -webkit-background-clip: text;
  background-clip: text;
}

.typing-container {
  color: var(--text-beige);
  display: inline-block;
  white-space: nowrap;
}

.dynamic-text {
  font-family: var(--font-main);
  font-weight: 900;
  font-style: italic;
  display: inline-block;
  border-right: 3px solid var(--accent-orange);
  white-space: nowrap;
  overflow: hidden;
  animation: cursor 0.8s step-end infinite;
  vertical-align: bottom;
  min-width: 10px;
  padding-right: 4px;
}

@keyframes cursor {
  50% {
    border-color: transparent;
  }
}

.hero-subtext {
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-beige);
  opacity: 0.8;
  margin-bottom: 48px;
  max-width: 650px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}

.hero-buttons .btn {
  min-width: 170px;
  padding: 14px 28px;
  font-size: 0.85rem;
  border-radius: 0;
  cursor: pointer;
  font-family: var(--font-main);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.2s;
}

.btn-highlight {
  background: var(--accent-orange);
  color: var(--bg-dark);
  border: 1px solid var(--accent-orange);
}

.btn-highlight:hover {
  background: transparent;
  color: var(--accent-orange);
}

.btn-outline {
  background: transparent;
  color: var(--text-beige);
  border: 1px solid var(--accent-olive);
}

.btn-outline:hover {
  border-color: var(--text-beige);
  background: rgba(255, 255, 255, 0.05);
}

/* Stacked paper visual */
.hero-visual {
  position: relative;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  perspective: 1200px;
}

.paper-stack {
  position: relative;
  width: 280px;
  height: 400px;
  will-change: transform;
}

.paper {
  position: absolute;
  inset: 0;
  background-color: var(--bg-dark);
  border: 1px solid var(--border-default);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  transition: transform 0.15s ease-out;
  background-image:
    linear-gradient(var(--accent-olive) 2px, transparent 2px),
    linear-gradient(var(--accent-olive) 2px, transparent 2px),
    linear-gradient(var(--accent-olive) 2px, transparent 2px);
  background-size: 80% 2px, 70% 2px, 85% 2px;
  background-position: 24px 80px, 24px 105px, 24px 130px;
  background-repeat: no-repeat;
}

.paper-1 {
  z-index: 1;
  transform: rotate(-8deg) translateX(calc(var(--mouse-x, 0) * -20px)) translateY(calc(var(--mouse-y, 0) * -20px));
  opacity: 0.5;
}

.paper-2 {
  z-index: 2;
  transform: rotate(4deg) translateX(calc(var(--mouse-x, 0) * -10px)) translateY(calc(var(--mouse-y, 0) * -10px));
  opacity: 0.8;
  background-color: #161813;
}

.paper-3 {
  z-index: 3;
  transform: translateX(calc(var(--mouse-x, 0) * -4px)) translateY(calc(var(--mouse-y, 0) * -4px));
  border-color: var(--accent-orange);
  background-color: #1a1c16;
  background-image: none;
  will-change: transform;
  isolation: isolate;
}

/* Glow via composited ::after — no box-shadow animation on the element itself */
.paper-3::after {
  content: '';
  position: absolute;
  inset: -1px;
  border: 1px solid var(--accent-orange);
  pointer-events: none;
  animation: glow-fade 4s ease-in-out infinite;
  border-radius: inherit;
}

@keyframes glow-fade {

  0%,
  100% {
    opacity: 0.4;
    filter: blur(0px);
  }

  50% {
    opacity: 1;
    filter: blur(1.5px);
  }
}

/* Hero paper inner content */
.paper-content {
  position: absolute;
  inset: 0;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
  pointer-events: none;
}

.paper-pdf-badge {
  position: absolute;
  top: 13px;
  right: 13px;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border: 1px solid var(--accent-orange);
  color: var(--accent-orange);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  animation: badge-pulse 4s ease-in-out infinite;
}

@keyframes badge-pulse {

  0%,
  100% {
    opacity: 0.7;
  }

  50% {
    opacity: 1;
    box-shadow: 0 0 10px rgba(210, 152, 86, 0.35);
  }
}

.p-journal {
  font-family: var(--font-mono);
  font-size: 0.46rem;
  color: var(--accent-orange);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  opacity: 0.75;
  margin-bottom: 12px;
  margin-top: 2px;
}

.p-title-line {
  height: 10px;
  background: rgba(234, 206, 169, 0.55);
  border-radius: 2px;
  margin-bottom: 6px;
  flex-shrink: 0;
}

.p-body-line {
  height: 7px;
  background: rgba(58, 63, 41, 0.75);
  border-radius: 2px;
  margin-bottom: 5px;
  flex-shrink: 0;
}

.p-section-gap {
  height: 12px;
  flex-shrink: 0;
}

.p-doi {
  position: absolute;
  bottom: 14px;
  left: 20px;
  font-family: var(--font-mono);
  font-size: 0.44rem;
  color: rgba(210, 152, 86, 0.55);
  letter-spacing: 0.5px;
}

.p-scan-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(210, 152, 86, 0.15), transparent);
  animation: scan 5s linear infinite;
  pointer-events: none;
  will-change: transform;
}

@keyframes scan {
  0% {
    transform: translateY(0px);
    opacity: 0;
  }

  4% {
    transform: translateY(0px);
    opacity: 1;
  }

  88% {
    transform: translateY(396px);
    opacity: 1;
  }

  92% {
    transform: translateY(398px);
    opacity: 0;
  }

  100% {
    transform: translateY(398px);
    opacity: 0;
  }
}

/* --- 6. NUMBERS SECTION --- */
.numbers-section {
  width: 100%;
  margin: 0 auto 100px;
  padding: 60px 20px;
  background: var(--bg-section);
  border-top: 1px solid var(--accent-olive);
  border-bottom: 1px solid var(--accent-olive);
  position: relative;
  z-index: 2;
}

.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
}

.number-item {
  position: relative;
  padding: 0 20px;
}

.number-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 10%;
  height: 80%;
  width: 1px;
  background: var(--accent-olive);
  opacity: 0.5;
}

.number-value {
  font-family: var(--font-main);
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--text-beige);
  line-height: 1;
  margin-bottom: 10px;
}

.unit {
  font-size: 1.5rem;
  color: var(--accent-orange);
  margin-left: 2px;
}

.number-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-beige);
  opacity: 0.6;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* --- 7. FEATURES SECTION --- */
.features-section {
  width: 100%;
  max-width: 1400px;
  padding: 50px 20px 100px;
  margin: 0 auto;
  text-align: left;
  position: relative;
  z-index: 1;
}

.section-tag {
  display: inline-block;
  padding: 8px 16px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-orange);
  border: 1px solid var(--accent-orange);
  margin-bottom: 24px;
  font-family: var(--font-mono);
  background: rgba(210, 152, 86, 0.1);
}

.section-heading {
  font-family: var(--font-main);
  font-size: 3.5rem;
  font-weight: 900;
  margin-bottom: 24px;
  letter-spacing: -2px;
  line-height: 1.1;
}

.section-heading .gradient-text {
  display: inline-block;
  padding-bottom: 5px;
  margin-right: 15px;
}

.features-intro {
  font-family: var(--font-mono);
  opacity: 0.6;
  font-size: 1.1rem;
  margin-bottom: 60px;
  max-width: 900px;
  line-height: 1.6;
}

/* Brutalist tabs */
.features-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 60px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--accent-olive);
  padding-bottom: 30px;
}

.tab-btn {
  background: transparent;
  border: 1px solid var(--accent-olive);
  color: var(--text-beige);
  padding: 14px 28px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.1s;
  display: flex;
  align-items: center;
  gap: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.tab-btn.active {
  background: var(--accent-orange);
  border-color: var(--accent-orange);
  color: var(--bg-dark);
  box-shadow: 6px 6px 0 var(--accent-olive);
  transform: translate(-2px, -2px);
}

/* Feature content layout */
.feature-grid {
  display: none;
  grid-template-columns: 1fr 1.2fr;
  gap: 100px;
  align-items: start;
  animation: fadeIn 0.4s ease-out;
}

.feature-grid.active {
  display: grid;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-text-side {
  padding-top: 20px;
}

.feature-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-orange);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
  display: block;
}

.feature-title {
  font-family: var(--font-main);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--text-beige);
  margin-bottom: 32px;
  letter-spacing: -1px;
  line-height: 1.1;
}

.feature-desc {
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 48px;
  opacity: 0.7;
  border-left: 2px solid var(--accent-olive);
  padding-left: 24px;
}

.feature-bullets {
  list-style: none;
  display: grid;
  gap: 20px;
}

.feature-bullet {
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-beige);
}

.bullet-box {
  width: 20px;
  height: 20px;
  border: 1px solid var(--accent-olive);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 16px;
  color: var(--accent-orange);
  font-weight: bold;
  font-size: 14px;
  background: rgba(0, 0, 0, 0.2);
}

/* Feature canvas */
.feature-canvas {
  width: 100%;
  height: 440px;
  border: 1px solid var(--border-default);
  background: #1D1B19;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: 20px 20px 0 var(--accent-olive);
}

.canvas-bg-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(210, 152, 86, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(210, 152, 86, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

.canvas-status,
.canvas-coordinates,
.canvas-placeholder-text {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.canvas-status {
  position: absolute;
  top: 20px;
  left: 20px;
  font-size: 0.6rem;
  color: var(--accent-orange);
}

.canvas-coordinates {
  position: absolute;
  bottom: 20px;
  right: 20px;
  font-size: 0.6rem;
  color: var(--accent-olive);
}

.canvas-center-mark {
  width: 40px;
  height: 40px;
  border: 1px solid var(--accent-olive);
  position: relative;
  margin-bottom: 20px;
}

.canvas-center-mark::after,
.canvas-center-mark::before {
  content: '';
  position: absolute;
  background: var(--accent-olive);
}

.canvas-center-mark::after {
  top: 50%;
  left: -10px;
  right: -10px;
  height: 1px;
}

.canvas-center-mark::before {
  left: 50%;
  top: -10px;
  bottom: -10px;
  width: 1px;
}

.canvas-placeholder-text {
  font-size: 0.7rem;
  color: var(--accent-olive);
  letter-spacing: 2px;
}

/* --- 8. WORKFLOW SECTION --- */
.workflow-section {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 100px 20px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.workflow-header {
  margin-bottom: 80px;
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  padding: 40px 32px;
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: all 0.3s ease;
  position: relative;
}

.step-card:hover {
  border-color: var(--accent-orange);
  transform: translateY(-5px);
  box-shadow: 8px 8px 0 var(--accent-olive);
}

.step-number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-orange);
  margin-bottom: 24px;
  opacity: 0.8;
}

.step-icon-box {
  width: 50px;
  height: 50px;
  border: 1px solid var(--accent-olive);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--text-beige);
}

.step-card:hover .step-icon-box {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
}

.step-title {
  font-family: var(--font-main);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-beige);
  margin-bottom: 16px;
}

.step-desc {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-beige);
  opacity: 0.7;
  line-height: 1.6;
}

/* --- 9. PRICING SECTION --- */
.pricing-header {
  text-align: center;
  margin: 100px auto 80px;
  max-width: 900px;
  padding: 0 20px;
  position: relative;
  z-index: 2;
}

h1.section-title {
  font-family: var(--font-main);
  font-size: 4.5rem;
  font-weight: 900;
  color: var(--text-beige);
  margin-bottom: 16px;
  letter-spacing: -2px;
  line-height: 1.1;
}

.section-title .gradient-text {
  display: block;
  width: fit-content;
  margin: 0 auto;
  padding-bottom: 5px;
}

p.subtitle {
  font-size: 1rem;
  color: var(--text-beige);
  opacity: 0.8;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
  border-left: 2px solid var(--accent-orange);
  padding-left: 15px;
  text-align: left;
}

.pricing-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  width: 100%;
  max-width: 1200px;
  padding: 0 20px;
  position: relative;
  z-index: 1;
  align-items: stretch;
  margin-bottom: 100px;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  display: flex;
  flex-direction: column;
  position: relative;
  padding: 40px 32px;
  min-height: 750px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 10px 10px 0 var(--accent-olive);
  z-index: 10;
}

.card:hover .tab-label {
  border-color: var(--border-hover);
  color: var(--border-hover);
}

.card.featured {
  background: var(--bg-card-featured);
  border-color: var(--border-default);
  z-index: 2;
}

.card.featured:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 10px 10px 0 var(--accent-orange);
}

.tab-label {
  position: absolute;
  top: -1px;
  left: -1px;
  background: rgba(58, 63, 41, 0.4);
  color: var(--accent-orange);
  padding: 8px 16px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  border: 1px solid var(--border-default);
  font-family: var(--font-mono);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.card.featured .tab-label {
  background: var(--accent-orange);
  color: var(--bg-dark);
  border: none;
}

.top-section {
  display: flex;
  flex-direction: column;
  height: 320px;
}

.plan-name {
  font-family: var(--font-main);
  font-size: 1.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin: 20px 0 10px;
  color: var(--text-beige);
  min-height: 40px;
}

.price-area {
  display: flex;
  align-items: baseline;
  margin-bottom: 10px;
  font-family: var(--font-main);
  min-height: 90px;
}

.currency {
  font-size: 2.5rem;
  font-weight: 700;
  margin-right: 2px;
  color: var(--accent-orange);
}

.amount {
  font-size: 5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--accent-orange);
  letter-spacing: -2px;
}

.period {
  font-size: 1.1rem;
  font-weight: 500;
  opacity: 0.6;
  margin-left: 8px;
  font-family: var(--font-mono);
}

.billing-note {
  font-size: 1rem;
  color: var(--text-beige);
  font-weight: 600;
  display: block;
  margin-bottom: 30px;
  opacity: 0.9;
  font-family: var(--font-main);
}

.card-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  opacity: 0.7;
  margin-bottom: auto;
  font-family: var(--font-mono);
}

.divider {
  width: 100%;
  height: 1px;
  background: var(--accent-olive);
  margin-bottom: 20px;
}

.card.featured .divider {
  background: var(--accent-orange);
  opacity: 0.3;
}

.card-body {
  flex-grow: 1;
}

.features-list {
  list-style: none;
}

.features-list li {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  font-size: 0.84rem;
  line-height: 1.4;
  color: var(--text-beige);
}

.features-list li::before {
  content: '+';
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  margin-right: 16px;
  border: 1px solid var(--accent-olive);
  background: rgba(0, 0, 0, 0.2);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent-orange);
  font-weight: bold;
}

.card.featured .features-list li::before {
  border-color: var(--accent-orange);
  color: var(--text-beige);
}

.card-footer {
  margin-top: 40px;
}

.btn-card {
  display: block;
  width: 100%;
  padding: 20px;
  text-align: center;
  font-family: var(--font-main);
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid var(--accent-olive);
  background: transparent;
  color: var(--text-beige);
  white-space: nowrap;
}

.btn-card:hover {
  border-color: var(--border-hover);
  color: var(--accent-orange);
  transform: translateY(-2px);
  box-shadow: 4px 4px 0 var(--accent-olive);
}

.card.featured .btn-card:hover {
  background: var(--text-beige);
  color: var(--bg-dark);
  border-color: var(--text-beige);
}

/* --- 10. TESTIMONIALS --- */
.testimonials-section {
  width: 100%;
  position: relative;
  z-index: 1;
  text-align: center;
  background: var(--bg-section);
  border-top: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
  padding: 100px 20px;
}

.testimonials-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  text-align: left;
}

.testimonial-card {
  background: #201D1B;
  border: 1px solid var(--border-default);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
  height: 100%;
}

.testimonial-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 10px 10px 0 var(--accent-olive);
}

.testimonial-body {
  height: 220px;
  display: flex;
  flex-direction: column;
}

.stars {
  color: var(--accent-orange);
  font-size: 1.2rem;
  margin-bottom: 24px;
  letter-spacing: 4px;
}

.quote {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 30px;
  opacity: 0.8;
}

.user-info {
  display: flex;
  align-items: center;
  border-top: 1px solid var(--accent-olive);
  padding-top: 24px;
  margin-top: auto;
}

.avatar {
  width: 48px;
  height: 48px;
  background: rgba(58, 63, 41, 0.3);
  color: var(--accent-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-main);
  font-weight: 700;
  margin-right: 16px;
  border: 1px solid var(--border-default);
  font-size: 1.1rem;
}

/* --- 11. FAQ --- */
.faq-section {
  width: 100%;
  max-width: 900px;
  margin: 150px auto 100px;
  padding: 0 20px;
  text-align: left;
  position: relative;
  z-index: 1;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  margin-bottom: 24px;
  transition: all 0.2s ease;
}

.faq-item[open] {
  border-color: var(--border-hover);
  background: rgba(58, 63, 41, 0.1);
  box-shadow: 6px 6px 0 var(--accent-olive);
}

.faq-question {
  padding: 24px;
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 1.1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-beige);
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--accent-orange);
  font-weight: 400;
  margin-left: 20px;
}

.faq-item[open] .faq-question::after {
  content: '-';
}

.faq-answer {
  padding: 0 24px 24px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-beige);
  opacity: 0.8;
}

.faq-item[open] .faq-answer {
  border-top: 1px solid var(--accent-olive);
  padding-top: 24px;
}

/* --- 12. CTA / FOOTER --- */
.cta-section {
  width: 100%;
  padding: 120px 20px;
  text-align: center;
  border-top: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
  background: linear-gradient(180deg, rgba(22, 24, 19, 0.5) 0%, var(--bg-dark) 100%);
  position: relative;
  z-index: 1;
}

footer {
  width: 100%;
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  background: var(--bg-section);
  border-top: 1px solid var(--accent-olive);
}

.footer-main {
  width: 100%;
  border-bottom: 1px solid var(--border-default);
  padding: 100px 20px 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 60px;
  max-width: 1400px;
  margin: 0 auto;
}

.footer-links a {
  color: var(--text-beige);
  text-decoration: none;
  font-size: 0.9rem;
  opacity: 0.7;
  transition: all 0.2s;
  display: inline-block;
}

.footer-links a:hover {
  opacity: 1;
  color: var(--accent-orange);
  transform: translateX(4px);
}

.footer-bottom {
  width: 100%;
  padding: 30px 20px;
}

.footer-bottom-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  opacity: 0.5;
}

/* --- 13. AUTH MODAL --- */
.auth-overlay,
.dialog-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.auth-overlay {
  z-index: 9999;
  background: rgba(32, 29, 27, 0.08);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.22s ease, visibility 0.22s ease;
}

.auth-overlay.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Two-column modal shell */
.auth-modal {
  background: #1E1812;
  border: 1px solid rgba(199,175,144,0.14);
  width: 580px;
  max-width: 96vw;
  position: relative;
  font-family: var(--font-main);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.22s ease, transform 0.22s ease;
  will-change: opacity, transform;
  display: flex;
  border-radius: 0;
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0,0,0,0.7), 0 0 0 1px rgba(199,175,144,0.06);
}

.auth-overlay.is-visible .auth-modal {
  opacity: 1;
  transform: translateY(0);
}

/*  Left brand panel  */
.auth-panel-left {
  width: 210px;
  flex-shrink: 0;
  background: linear-gradient(160deg, #271E16 0%, #1A130E 100%);
  border-right: 1px solid rgba(199,175,144,0.09);
  padding: 30px 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.auth-panel-left::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(199,175,144,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.auth-brand-row {
  margin-bottom: 22px;
}

.auth-pl-tagline {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
  color: #E8D9C0;
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}

.auth-pl-tagline em {
  font-style: normal;
  color: #C7AF90;
}

.auth-pl-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.auth-pl-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 11.5px;
  line-height: 1.45;
  color: rgba(232,217,192,0.55);
}

.auth-pl-features li::before {
  content: '\2726';
  color: #C7AF90;
  font-size: 8px;
  flex-shrink: 0;
  margin-top: 3px;
}

.auth-pl-footer {
  font-size: 10px;
  color: rgba(199,175,144,0.3);
  line-height: 1.5;
  margin-top: 24px;
}

/*  Right form panel  */
.auth-panel-right {
  flex: 1;
  padding: 22px 22px 18px;
  display: flex;
  flex-direction: column;
  min-width: 0;
  position: relative;
}

/* Close button */
.auth-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(199,175,144,0.1);
  color: rgba(199,175,144,0.4);
  font-size: 1.2rem;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  z-index: 2;
  line-height: 1;
}

.auth-close:hover {
  background: rgba(255,255,255,0.1);
  color: #E8D9C0;
}

/* Tabs */
.auth-tabs {
  display: flex;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(199,175,144,0.08);
  border-radius: 0;
  padding: 3px;
  margin-bottom: 12px;
  margin-right: 38px;
}

.auth-tab {
  flex: 1;
  padding: 7px;
  border: none;
  background: transparent;
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 0;
  transition: all .2s;
  color: rgba(232,217,192,0.45);
  font-family: var(--font-main);
}

.auth-tab.active {
  background: #2B2017;
  color: #E8D9C0;
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

.auth-tab:hover:not(.active) {
  color: rgba(232,217,192,0.75);
}

/* Error */
.auth-error {
  background: rgba(220, 53, 69, 0.12);
  border: 1px solid rgba(220, 53, 69, 0.35);
  color: #ff6b6b;
  padding: 0 14px;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-bottom: 0;
  border-radius: 0;
  transition: max-height 0.22s ease, opacity 0.22s ease, padding 0.22s ease, margin-bottom 0.22s ease;
}

.auth-error.visible {
  max-height: 120px;
  padding: 10px 14px;
  margin-bottom: 10px;
  opacity: 1;
}

/* Google button */
.auth-google-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 9px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(199,175,144,0.15);
  border-radius: 0;
  color: #E8D9C0;
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all .2s;
  margin-bottom: 10px;
}

.auth-google-btn:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(199,175,144,0.3);
}

/* OR divider */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  color: rgba(199,175,144,0.3);
  font-family: var(--font-mono);
  font-size: 11px;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(199,175,144,0.1);
}

/* Form fields */
.auth-modal form {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.auth-field label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  color: rgba(199,175,144,0.55);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.auth-modal input[type="email"],
.auth-modal input[type="password"],
.auth-modal input[type="text"] {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(199,175,144,0.12);
  border-radius: 0;
  padding: 9px 12px;
  color: #E8D9C0;
  font-family: var(--font-main);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}

.auth-modal input:focus {
  border-color: rgba(199,175,144,0.35);
  background: rgba(255,255,255,0.06);
}

.auth-modal input::placeholder {
  color: rgba(199,175,144,0.2);
}

/* Forgot link */
.auth-forgot-link-row {
  display: flex;
  justify-content: flex-end;
  margin-top: -2px;
}

.auth-forgot-link {
  background: none;
  border: none;
  color: rgba(199,175,144,0.4);
  font-family: var(--font-mono);
  font-size: 10.5px;
  cursor: pointer;
  padding: 0;
  transition: color 0.15s;
  text-decoration: underline;
}

.auth-forgot-link:hover {
  color: rgba(199,175,144,0.8);
}

.auth-back-btn {
  background: none;
  border: 1px solid rgba(199,175,144,0.15);
  color: #E8D9C0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 8px 14px;
  border-radius: 0;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s, border-color 0.2s;
  margin-top: 4px;
}

.auth-back-btn:hover {
  opacity: 1;
  border-color: rgba(199,175,144,0.4);
}

.auth-forgot-success {
  padding: 24px 0;
  text-align: center;
}

.auth-forgot-success p {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: #E8D9C0;
  opacity: 0.8;
  line-height: 1.6;
}

.auth-forgot-success .auth-forgot-success-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  display: block;
}

/* Submit button */
.auth-submit-btn {
  width: 100%;
  padding: 10px;
  background: #C7AF90;
  color: #1C1612;
  border: none;
  border-radius: 0;
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  transition: all .2s;
  margin-top: 4px;
  letter-spacing: 0;
  text-transform: none;
}

.auth-submit-btn:hover {
  background: #D4BC9A;
}

.auth-submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Password strength (compact) */
.pw-strength-wrap {
  margin-top: 5px;
}

.pw-strength-bar {
  display: flex;
  gap: 4px;
  height: 3px;
  margin-bottom: 5px;
}

.pw-strength-seg {
  flex: 1;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  transition: background 0.25s ease;
}

.pw-strength-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: color 0.25s ease;
  display: inline-block;
  margin-bottom: 4px;
}

.pw-criteria {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
}

.pw-criteria li {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: rgba(199,175,144,0.35);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
}

.pw-criteria li.met {
  color: #5EC97A;
}

.pw-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* Footer / terms */
.auth-footer-text {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(199,175,144,0.3);
  margin-top: 10px;
  line-height: 1.5;
}

.auth-footer-text a {
  color: rgba(199,175,144,0.55);
  text-decoration: underline;
}

.auth-footer-text a:hover {
  color: #C7AF90;
}

/* Spinner */
.auth-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(28,22,18,0.3);
  border-top-color: #1C1612;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --- Sign-Out Dialog Redesign --- */
.signout-dialog-box {
  text-align: left;
  width: 420px;
}

.signout-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.signout-icon {
  width: 24px;
  height: 24px;
  color: #D29856;
  flex-shrink: 0;
}

.signout-header h3 {
  margin-bottom: 0;
}

.signout-text-primary {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-beige);
  opacity: 0.65;
  line-height: 1.55;
  margin-bottom: 10px;
}

.signout-text-secondary {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-beige);
  opacity: 0.4;
  line-height: 1.55;
  margin-bottom: 28px;
}

.signout-actions {
  justify-content: flex-end;
}

.signout-btn-cancel {
  background: transparent;
  color: var(--text-beige);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.signout-btn-cancel:hover {
  border-color: var(--accent-orange);
}

.signout-btn-confirm {
  background: #9E5842;
  color: var(--text-beige);
  border-color: #9E5842;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.signout-btn-confirm:hover {
  opacity: 0.85;
}
/* --- 14. DIALOGS (Sign Out / Welcome) --- */
.dialog-overlay {
  z-index: 10000;
  background: rgba(0, 0, 0, 0.7);
}

.dialog-box {
  background: var(--bg-dark);
  border: 1px solid var(--border-default);
  padding: 36px 32px;
  width: 380px;
  max-width: 90vw;
  text-align: center;
  font-family: var(--font-main);
}

.dialog-box h3 {
  color: var(--text-beige);
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.dialog-box p {
  color: var(--text-beige);
  opacity: 0.6;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 28px;
}

.dialog-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.dialog-btn {
  padding: 10px 24px;
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  border: 1px solid var(--border-default);
  transition: all 0.2s;
}

.dialog-btn-cancel {
  background: transparent;
  color: var(--text-beige);
}

.dialog-btn-cancel:hover {
  border-color: var(--accent-orange);
}

.dialog-btn-confirm {
  background: var(--accent-orange);
  color: var(--bg-dark);
  border-color: var(--accent-orange);
}

.dialog-btn-confirm:hover {
  opacity: 0.85;
}

/* --- 15. ICON ANIMATIONS --- */
.tab-btn svg {
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  opacity: 0.7;
}

.tab-btn:hover svg {
  opacity: 1;
  transform: scale(1.1);
}

.tab-btn.active svg {
  opacity: 1;
  color: var(--bg-dark);
}

.icon-library-page {
  transform-origin: 20% 100%;
  transition: transform 0.3s ease;
}

.tab-btn:hover .icon-library-page {
  transform: rotate(-8deg) translateX(-1px);
}

.icon-reader-line {
  transform-origin: center;
  transition: transform 0.3s ease, opacity 0.3s;
}

.tab-btn:hover .icon-reader-line:nth-child(2) {
  transform: translateX(2px);
}

.tab-btn:hover .icon-reader-line:nth-child(3) {
  transform: translateX(-1px);
  transition-delay: 0.05s;
}

.icon-import-arrow {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.tab-btn:hover .icon-import-arrow {
  transform: translateY(3px);
}

.icon-cite-quote {
  transform-origin: center;
  transition: transform 0.3s ease;
}

.tab-btn:hover .icon-cite-quote:first-child {
  transform: translateY(-2px) rotate(-10deg);
}

.tab-btn:hover .icon-cite-quote:last-child {
  transform: translateY(2px) rotate(10deg);
}

.icon-pen-tip {
  transform-origin: 0% 100%;
  transition: transform 0.3s ease;
}

.tab-btn:hover .icon-pen-tip {
  transform: rotate(-15deg);
}

/* --- 16. RESPONSIVE --- */
@media (max-width: 1000px) {

  .hero-section,
  .feature-grid,
  .workflow-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .numbers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }

  .number-item:not(:last-child)::after {
    display: none;
  }

  .hero-heading,
  .section-heading {
    font-size: 3rem;
  }

  .pricing-container,
  .testimonials-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   NUMERIC SECTION ICON ANIMATIONS
============================================ */

/* 300M+ (Magnifying Glass) */
@keyframes pulse-ring {
  0% {
    transform: scale(0.8);
    opacity: 0.8;
  }

  100% {
    transform: scale(1.6);
    opacity: 0;
  }
}

@keyframes search-bob {

  0%,
  100% {
    transform: rotate(-10deg) translateY(0)
  }

  50% {
    transform: rotate(-10deg) translateY(-4px)
  }
}

.glass-group {
  animation: search-bob 1.8s ease-in-out infinite;
}

/* 15+ (Citation Brackets) */
@keyframes bracket-l {

  0%,
  100% {
    transform: translateX(5px);
    opacity: 0;
  }

  30%,
  75% {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes bracket-r {

  0%,
  100% {
    transform: translateX(-5px);
    opacity: 0;
  }

  30%,
  75% {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes cite-text-appear {

  0%,
  30%,
  100% {
    opacity: 0;
    transform: scaleX(0)
  }

  40%,
  85% {
    opacity: 1;
    transform: scaleX(1)
  }
}

.br-left {
  animation: bracket-l 2s ease-in-out infinite;
}

.br-right {
  animation: bracket-r 2s ease-in-out infinite;
}

.br-text {
  animation: cite-text-appear 2s ease-in-out infinite;
  transform-origin: left;
}

/* <5min (Clock) */
@keyframes min-hand {
  to {
    transform: rotate(360deg);
    transform-origin: 28px 28px;
  }
}

@keyframes hr-hand {
  to {
    transform: rotate(360deg);
    transform-origin: 28px 28px;
  }
}

.clock-min {
  transform-origin: 28px 28px;
  animation: min-hand 4s linear infinite;
}

.clock-hr {
  transform-origin: 28px 28px;
  animation: hr-hand 48s linear infinite;
}

/* /mo (Star) */
@keyframes star-burst {

  0%,
  100% {
    transform: scale(1) rotate(0deg);
    fill: transparent;
  }

  30% {
    transform: scale(0.7) rotate(-15deg);
  }

  55%,
  80% {
    transform: scale(1.15) rotate(0deg);
    fill: var(--accent-orange);
  }
}

@keyframes star-ray {

  0%,
  100% {
    opacity: 0;
    transform: scale(0.3);
  }

  55%,
  75% {
    opacity: 1;
    transform: scale(1);
  }
}

.star-shape {
  animation: star-burst 2.5s ease-in-out infinite;
}

.star-ray {
  animation: star-ray 2.5s ease-in-out infinite;
}

.sr2 {
  animation-delay: 0.05s;
}

.sr3 {
  animation-delay: 0.10s;
}

.sr4 {
  animation-delay: 0.15s;
}