/* ==========================================================================
   EXARK Marketing Site - Global Styles
   Vanilla CSS - Monochrome Design System
   ========================================================================== */

/* Font Import - Manrope: clean geometric sans-serif */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@300;400;500;600;700;800&display=swap');

/* ==========================================================================
   CSS Custom Properties
   ========================================================================== */
:root {
  /* Colors - Strict Monochrome */
  --color-bg: #000000;
  --color-text: #ffffff;
  --color-text-muted: rgba(255, 255, 255, 0.6);
  --color-border: rgba(255, 255, 255, 0.15);
  --color-border-hover: rgba(255, 255, 255, 0.4);
  
  /* Typography */
  --font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;
  --font-size-6xl: 4.5rem;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;
  
  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
}

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

a {
  color: var(--color-text);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

a:hover {
  opacity: 0.7;
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: 700;
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

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

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

.text-sm {
  font-size: var(--font-size-sm);
}

.text-xs {
  font-size: var(--font-size-xs);
}

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-4xl) 0;
}

.section-header {
  margin-bottom: var(--space-3xl);
}

.section-title {
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  max-width: 600px;
}

/* ==========================================================================
   Header
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.header.scrolled {
  background-color: rgba(0, 0, 0, 0.98);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
}

.logo-img {
  height: 32px;
  width: auto;
  display: block;
  object-fit: contain;
  max-width: 120px;
}

.logo-text {
  display: none; /* Hide by default when image is present */
}

/* Show text only if image fails to load (handled by img onerror) */
.logo-text.fallback {
  display: inline-block;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text);
  opacity: 1;
}

.nav-btn {
  margin-left: var(--space-md);
}

/* Mobile Menu Button */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 24px;
  height: 24px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid var(--color-text);
  background-color: transparent;
  color: var(--color-text);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.btn:hover {
  background-color: var(--color-text);
  color: var(--color-bg);
  opacity: 1;
}

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

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

.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-base);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

/* Video-ready overlay structure */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-color: var(--color-bg);
}

/* For future video background */
.hero-bg video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.7) 0%,
    rgba(0, 0, 0, 0.85) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: var(--space-4xl) 0;
}

.hero-headline {
  font-size: clamp(2.5rem, 8vw, var(--font-size-6xl));
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-lg);
}

.hero-subheadline {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 580px;
  margin-bottom: var(--space-xl);
  line-height: 1.5;
}

.hero-cta {
  margin-bottom: var(--space-md);
}

.hero-undertext {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  max-width: 400px;
}

/* ==========================================================================
   Capabilities Section
   ========================================================================== */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.capability-card {
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-base), transform var(--transition-base);
  position: relative;
  overflow: hidden;
}

.capability-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-text);
  transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.capability-card:hover::before {
  width: 100%;
}

/* Icon draw animation on card reveal */
.capability-card.reveal.active .icon-animated svg path,
.capability-card.reveal.active .icon-animated svg line,
.capability-card.reveal.active .icon-animated svg circle,
.capability-card.reveal.active .icon-animated svg rect {
  stroke-dashoffset: 0;
}

.capability-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.capability-description {
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

/* ==========================================================================
   How It Works Section
   ========================================================================== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.step {
  position: relative;
  padding-top: var(--space-md);
}

.step-number {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.step-number::after {
  content: '';
  display: block;
  flex: 1;
  max-width: 60px;
  height: 1px;
  background: var(--color-border);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
}

.step.reveal.active .step-number::after {
  transform: scaleX(1);
}

.step-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.step-description {
  font-size: var(--font-size-sm);
}

/* ==========================================================================
   Use Cases Section
   ========================================================================== */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.usecase-tile {
  padding: var(--space-xl) var(--space-lg);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-base);
}

.usecase-tile:hover {
  border-color: var(--color-border-hover);
}

.usecase-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.usecase-description {
  font-size: var(--font-size-sm);
}

/* ==========================================================================
   Investor Briefing Section
   ========================================================================== */
.investor-section {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.investor-content {
  max-width: 600px;
}

.investor-email {
  margin-top: var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.investor-email a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ==========================================================================
   Final CTA Section
   ========================================================================== */
.final-cta {
  text-align: center;
  padding: var(--space-4xl) 0;
}

.final-cta-text {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

/* ==========================================================================
   Contact Page
   ========================================================================== */
.page-header {
  padding-top: calc(var(--header-height) + var(--space-4xl));
  padding-bottom: var(--space-3xl);
}

.page-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-md);
}

.page-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 500px;
}

/* Form Styles */
.contact-form {
  max-width: 560px;
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: transparent;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-text);
  box-shadow: 0 0 0 1px var(--color-text);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
  transition: opacity var(--transition-fast);
}

.form-input:focus::placeholder,
.form-textarea:focus::placeholder {
  opacity: 0.5;
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

/* Form group animation */
.form-group {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.form-group:nth-child(1) { animation-delay: 0.1s; }
.form-group:nth-child(2) { animation-delay: 0.15s; }
.form-group:nth-child(3) { animation-delay: 0.2s; }
.form-group:nth-child(4) { animation-delay: 0.25s; }
.form-group:nth-child(5) { animation-delay: 0.3s; }

.form-submit {
  margin-top: var(--space-lg);
}

/* Email List */
.email-section {
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.email-section-title {
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-md);
  color: var(--color-text-muted);
}

.email-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.email-list a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.email-list a:hover {
  color: var(--color-text);
}

/* ==========================================================================
   Investors Page
   ========================================================================== */
.investors-content {
  max-width: 700px;
}

.calendly-embed {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.calendly-embed iframe {
  width: 100%;
  min-height: 650px;
  border: 1px solid var(--color-border);
}

.investors-email {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.investors-email a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ==========================================================================
   Privacy Page
   ========================================================================== */
.privacy-content {
  max-width: 700px;
  padding-bottom: var(--space-4xl);
}

.privacy-content h3 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.privacy-content p {
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.privacy-content a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.footer-link:hover {
  color: var(--color-text);
  opacity: 1;
}

.footer-emails {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
}

.footer-emails a {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.footer-copyright {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ==========================================================================
   Animations
   ========================================================================== */

/* Base Keyframes */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes drawLine {
  from { stroke-dashoffset: 1000; }
  to { stroke-dashoffset: 0; }
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes expandWidth {
  from { width: 0; }
  to { width: 100%; }
}

/* Animation Classes */
.fade-in {
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
}

.fade-in-delay-1 { animation-delay: 150ms; }
.fade-in-delay-2 { animation-delay: 300ms; }
.fade-in-delay-3 { animation-delay: 450ms; }
.fade-in-delay-4 { animation-delay: 600ms; }
.fade-in-delay-5 { animation-delay: 750ms; }

/* Scroll-triggered animations */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
}

/* Staggered children animation */
.stagger-children .reveal {
  transition-delay: calc(var(--stagger-index, 0) * 100ms);
}

/* ==========================================================================
   SVG Animations & Elements
   ========================================================================== */

/* Hero SVG Background */
.hero-svg-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-svg-bg svg {
  position: absolute;
  width: 100%;
  height: 100%;
}

/* Grid Pattern */
.svg-grid {
  opacity: 0.03;
}

.svg-grid line {
  stroke: var(--color-text);
  stroke-width: 0.5;
}

/* Animated Lines */
.svg-lines {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 50%;
  height: 60%;
  opacity: 0.08;
}

.svg-lines line {
  stroke: var(--color-text);
  stroke-width: 1;
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: drawLine 3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.svg-lines line:nth-child(1) { animation-delay: 0.5s; }
.svg-lines line:nth-child(2) { animation-delay: 0.7s; }
.svg-lines line:nth-child(3) { animation-delay: 0.9s; }
.svg-lines line:nth-child(4) { animation-delay: 1.1s; }
.svg-lines line:nth-child(5) { animation-delay: 1.3s; }

/* Geometric Shapes */
.svg-shapes {
  position: absolute;
  right: 5%;
  top: 20%;
  width: 400px;
  height: 400px;
  opacity: 0.06;
}

.svg-shapes circle,
.svg-shapes rect,
.svg-shapes polygon {
  fill: none;
  stroke: var(--color-text);
  stroke-width: 1;
}

.svg-shape-rotate {
  transform-origin: center;
  animation: rotate 60s linear infinite;
}

.svg-shape-pulse {
  animation: pulse 4s ease-in-out infinite;
}

/* Corner Accents */
.corner-accent {
  position: absolute;
  width: 80px;
  height: 80px;
  opacity: 0.15;
  pointer-events: none;
}

.corner-accent svg {
  width: 100%;
  height: 100%;
}

.corner-accent.top-left {
  top: var(--space-lg);
  left: var(--space-lg);
}

.corner-accent.top-right {
  top: var(--space-lg);
  right: var(--space-lg);
  transform: rotate(90deg);
}

.corner-accent.bottom-left {
  bottom: var(--space-lg);
  left: var(--space-lg);
  transform: rotate(-90deg);
}

.corner-accent.bottom-right {
  bottom: var(--space-lg);
  right: var(--space-lg);
  transform: rotate(180deg);
}

/* Section Divider Line */
.section-line {
  width: 60px;
  height: 1px;
  background: var(--color-text);
  margin-bottom: var(--space-lg);
  transform-origin: left;
  animation: expandWidth 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0.5;
}

.reveal .section-line {
  width: 0;
}

.reveal.active .section-line {
  width: 60px;
  transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}

/* Animated Border Cards */
.animated-border {
  position: relative;
  overflow: hidden;
}

.animated-border::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-base);
}

.animated-border::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-text);
  transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.animated-border:hover::after {
  width: 100%;
}

/* Icon Animations */
.icon-animated {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
}

.icon-animated svg {
  width: 100%;
  height: 100%;
  stroke: var(--color-text);
  stroke-width: 1;
  fill: none;
}

.icon-animated svg path,
.icon-animated svg line,
.icon-animated svg circle,
.icon-animated svg rect {
  stroke-dasharray: 200;
  stroke-dashoffset: 200;
  transition: stroke-dashoffset 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active .icon-animated svg path,
.reveal.active .icon-animated svg line,
.reveal.active .icon-animated svg circle,
.reveal.active .icon-animated svg rect {
  stroke-dashoffset: 0;
}

/* Number Counter Animation */
.step-number {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.step-number::after {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-border);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
}

.reveal.active .step-number::after {
  transform: scaleX(1);
}

/* Hover Lift Effect */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(255, 255, 255, 0.03);
}

/* Text Reveal Animation */
.text-reveal {
  overflow: hidden;
}

.text-reveal span {
  display: inline-block;
  transform: translateY(100%);
  animation: textReveal 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes textReveal {
  to { transform: translateY(0); }
}

/* Cursor Follow Effect (for hero) */
.cursor-glow {
  position: fixed;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.hero:hover .cursor-glow {
  opacity: 1;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
  .capabilities-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .steps-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .usecases-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }
  
  h1 {
    font-size: var(--font-size-4xl);
  }
  
  h2 {
    font-size: var(--font-size-2xl);
  }
  
  .section {
    padding: var(--space-3xl) 0;
  }
  
  /* Mobile Navigation */
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--space-xl);
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 999;
  }
  
  .nav.active {
    transform: translateX(0);
  }
  
  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-lg);
    width: 100%;
  }
  
  .nav-link {
    font-size: var(--font-size-lg);
  }
  
  .nav-btn {
    margin-left: 0;
    margin-top: var(--space-lg);
    width: 100%;
  }
  
  .nav-btn .btn {
    width: 100%;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  /* Mobile Hero */
  .hero-content {
    padding: var(--space-xl) 0;
  }
  
  /* Mobile Capabilities */
  .capabilities-grid {
    grid-template-columns: 1fr;
  }
  
  .capability-card {
    padding: var(--space-lg);
  }
  
  /* Mobile Footer */
  .footer-top {
    flex-direction: column;
  }
  
  .footer-emails {
    flex-direction: column;
    gap: var(--space-xs);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }
  
  .hero-headline {
    font-size: var(--font-size-3xl);
  }
  
  .btn-lg {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-sm);
  }
}