:root {
  --bg: #ffffff;
  --fg: #111111;
  --muted: #6b6b6b;
  --surface: #ededed;
  --accent: #ff006e;
  --warn: #ff7a00;
  --accent-light: #ffe5f1;
  --warn-light: #fff3e5;
  --success: #34c759;
  --success-light: #e8f8ec;
  --purple: #af52de;
  --purple-light: #f3e5ff;
  --magenta: #ff006e;
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background-color: var(--bg);
  color: var(--fg);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1 {
  font-size: 48px;
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 42px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
}

.caption {
  font-size: 14px;
  font-weight: 400;
  color: var(--muted);
}

/* Header */
header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: all 250ms ease-out;
  z-index: 50;
}

header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  border-bottom-color: rgba(0, 122, 255, 0.1);
  box-shadow: 0 2px 12px rgba(0, 122, 255, 0.04);
}

.logo {
  font-size: 32px;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--fg);
  text-decoration: none;
  transition: color 200ms ease-out;
}

.logo:hover,
.logo:focus-visible {
  color: var(--accent);
}

.logo-dot {
  color: var(--magenta);
}

nav a {
  color: var(--fg);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: all 250ms ease-out;
  padding: 8px 0;
  position: relative;
}

nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--purple));
  transform: scaleX(0);
  transition: transform 250ms ease-out;
}

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

nav a:hover::after,
nav a.active::after {
  transform: scaleX(1);
}

nav a.active {
  color: var(--accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 28px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 250ms ease-out;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--fg);
  color: var(--bg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--bg);
  color: var(--fg);
  border: 2px solid var(--fg);
}

.btn-secondary:hover {
  background-color: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.btn-accent {
  background-color: var(--accent);
  color: white;
  border: none;
  box-shadow: 0 2px 12px rgba(255, 0, 110, 0.25);
}

.btn-accent:hover {
  box-shadow: 0 6px 24px rgba(255, 0, 110, 0.4);
  transform: translateY(-2px);
}

.btn-purple {
  background-color: var(--purple);
  color: white;
  border: none;
  box-shadow: 0 2px 12px rgba(175, 82, 222, 0.25);
}

.btn-purple:hover {
  box-shadow: 0 6px 24px rgba(175, 82, 222, 0.4);
  transform: translateY(-2px);
}

.btn-small {
  min-height: 36px;
  padding: 0 16px;
  font-size: 14px;
}

/* Cards */
.card {
  background-color: var(--bg);
  border: 2px solid transparent;
  border-radius: 20px;
  padding: 36px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  transition: all 250ms ease-out;
  position: relative;
  overflow: hidden;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.card-design {
  border-color: var(--accent);
}

.card-design .card-icon i {
  color: var(--accent) !important;
}

.card-code {
  border-color: var(--purple);
}

.card-code .card-icon i {
  color: var(--purple) !important;
}

.card-purpose {
  border-color: var(--success);
}

.card-purpose .card-icon i {
  color: var(--success) !important;
}

.card-icon i {
  stroke-width: 1.5;
}

.product-card {
  background-color: var(--bg);
  border: 2px solid rgba(0, 0, 0, 0.08);
  border-radius: 16px;
  padding: 28px;
  transition: all 250ms ease-out;
  position: relative;
}

.product-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 122, 255, 0.15);
}

.product-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-beta {
  background-color: var(--accent-light);
  color: var(--accent);
}

.badge-alpha {
  background-color: var(--warn-light);
  color: var(--warn);
}

.badge-dev {
  background-color: var(--muted);
  color: var(--fg);
  opacity: 0.7;
}

.badge-roadmap {
  background-color: var(--surface);
  color: var(--muted);
}

.product-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.tag {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 500;
  color: white;
}

.tag-finance {
  background-color: var(--success);
}

.tag-saas {
  background-color: var(--accent);
}

.tag-finops {
  background-color: var(--warn);
}

.tag-platform {
  background-color: var(--accent);
}

.tag-integration {
  background-color: var(--purple);
}

.tag-infrastructure {
  background-color: var(--success);
}

.tag-devops {
  background-color: var(--accent);
}

.tag-automation {
  background-color: var(--warn);
}

.tag-support {
  background-color: var(--success);
}

.tag-helpdesk {
  background-color: var(--purple);
}

.tag-ai {
  background-color: var(--warn);
}

.tag-analytics {
  background-color: var(--accent);
}

.tag-metrics {
  background-color: var(--purple);
}

.tag-insights {
  background-color: var(--warn);
}

.tag-productivity {
  background-color: var(--success);
}

.tag-collaboration {
  background-color: var(--purple);
}

.tag-monitoring {
  background-color: var(--warn);
}

.tag-observability {
  background-color: var(--accent);
}

.tag-cicd {
  background-color: var(--purple);
}

.tag-delivery {
  background-color: var(--success);
}

.tag-management {
  background-color: var(--accent);
}

.tag-overview {
  background-color: var(--purple);
}

.tag-performance {
  background-color: var(--warn);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.card-design:hover {
  box-shadow: 0 12px 32px rgba(0, 122, 255, 0.2);
}

.card-code:hover {
  box-shadow: 0 12px 32px rgba(175, 82, 222, 0.2);
}

.card-purpose:hover {
  box-shadow: 0 12px 32px rgba(52, 199, 89, 0.2);
}

/* Focus states */
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Form */
input,
textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--surface);
  border-radius: 16px;
  font-family: inherit;
  font-size: 16px;
  transition: border-color 200ms ease-out;
}

input:focus,
textarea:focus {
  border-color: var(--accent);
  outline: none;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

/* Responsive typography */
@media (max-width: 768px) {
  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 32px;
  }

  h3 {
    font-size: 24px;
  }

  body {
    font-size: 16px;
  }
}

/* Utilities */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 64px;
}

@media (max-width: 768px) {
  .container {
    padding: 0 32px;
  }
}

.section-spacing {
  padding: 120px 0;
}

@media (max-width: 768px) {
  .section-spacing {
    padding: 80px 0;
  }
}