/* ========================================
   DESIGN SYSTEM TOKENS
   ======================================== */
:root {
  /* Colors */
  --color-bg-primary: #050816;
  --color-bg-elevated: #0b1020;
  --color-bg-alt: #060b18;
  --color-surface: #0f172a;
  --color-surface-soft: #0b1220;
  --color-border-subtle: rgba(148, 163, 184, 0.35);
  --color-border-strong: rgba(148, 163, 184, 0.6);

  --color-text-primary: #e5e7eb;
  --color-text-muted: #9ca3af;
  --color-text-soft: #6b7280;

  --color-accent: #38bdf8;
  --color-accent-soft: rgba(56, 189, 248, 0.12);
  --color-accent-strong: #0ea5e9;
  --accent-rgb: 56, 189, 248;

  --color-accent-alt: #a855f7;
  --color-danger: #f97373;

  /* Typography */
  --font-sans: "Manrope", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;

  /* Layout & spacing */
  --container-max-width: 1080px;
  --page-padding-x: 24px;
  --page-padding-y: 40px;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --shadow-soft: 0 1px 2px rgba(15, 23, 42, 0.4), 0 10px 30px rgba(15, 23, 42, 0.8);
  --shadow-strong: 0 20px 80px rgba(15, 23, 42, 1);

  /* Transitions */
  --transition-fast: 0.16s ease-out;
  --transition-med: 0.22s ease-out;
}

/* ========================================
   GLOBAL BASE STYLES
   ======================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background: radial-gradient(circle at top, #020617 0, var(--color-bg-primary) 45%, #020617 100%);
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  text-decoration: none;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

body {
  min-height: 100vh;
}

/* Layout helpers */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding-inline: var(--page-padding-x);
}

.section {
  padding: 64px 0;
}

.section-alt {
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.08), transparent 60%),
    radial-gradient(circle at bottom right, rgba(168, 85, 247, 0.12), transparent 55%);
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-header.align-left {
  text-align: left;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 2.3vw, 2.1rem);
  letter-spacing: -0.03em;
  margin: 12px 0 10px;
}

.section-header p {
  color: var(--color-text-muted);
  max-width: 40rem;
  margin: 0 auto;
}

.section-header.align-left p {
  margin-left: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}

.eyebrow::before {
  content: "";
  width: 36px;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
}

/* Cards & surfaces */
.card {
  position: relative;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.96));
  border: 1px solid var(--color-border-subtle);
  padding: 22px 22px 24px;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(22px);
}

.shadow-soft {
  box-shadow: var(--shadow-soft);
}

.shadow-dramatic {
  box-shadow: var(--shadow-strong);
}

.gradient-border {
  border: 1px solid transparent;
  background:
    linear-gradient(var(--color-bg-elevated), var(--color-bg-elevated)) padding-box,
    linear-gradient(135deg, var(--color-accent), var(--color-accent-alt)) border-box;
}

/* Typography utilities */
.hero-subtitle,
.section > p,
.card p {
  font-size: var(--text-base);
  line-height: 1.6;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(20px);
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.94), rgba(15, 23, 42, 0.7), transparent);
  border-bottom: 1px solid rgba(15, 23, 42, 0.7);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px var(--page-padding-x);
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.06em;
  color: var(--color-text-primary);
}

.logo span {
  color: var(--color-accent);
}

.logo.small {
  font-size: var(--text-base);
}

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 16px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-list a {
  font-size: var(--text-sm);
  color: var(--color-text-soft);
  padding: 8px 10px;
  border-radius: 999px;
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.nav-list a:hover {
  color: var(--color-text-primary);
  background: rgba(15, 23, 42, 0.9);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.15), transparent), #020617;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
  cursor: pointer;
}

.nav-toggle span {
  width: 16px;
  height: 2px;
  border-radius: 999px;
  background: #e5e7eb;
  transition: transform var(--transition-med), opacity var(--transition-med);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  --btn-bg: var(--color-accent);
  --btn-bg-hover: var(--color-accent-strong);
  --btn-text: #0b1120;
  --btn-border: transparent;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 11px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--btn-border);
  background: radial-gradient(circle at top, rgba(248, 250, 252, 0.5), transparent 55%), var(--btn-bg);
  color: var(--btn-text);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-med), border-color var(--transition-fast);
  white-space: nowrap;
}

.btn:hover {
  background: radial-gradient(circle at top, rgba(248, 250, 252, 0.7), transparent 55%), var(--btn-bg-hover);
  transform: translateY(-1px) translateZ(0);
  box-shadow: 0 18px 35px rgba(15, 23, 42, 0.75);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.9);
}

.btn-primary {
  --btn-bg: var(--color-accent);
  --btn-bg-hover: var(--color-accent-strong);
  --btn-text: #020617;
}

.btn-secondary {
  --btn-bg: rgba(15, 23, 42, 0.95);
  --btn-bg-hover: rgba(15, 23, 42, 1);
  --btn-text: var(--color-text-primary);
  --btn-border: var(--color-border-strong);
}

.btn-ghost {
  --btn-bg: rgba(15, 23, 42, 0.75);
  --btn-bg-hover: rgba(15, 23, 42, 0.95);
  --btn-text: var(--color-text-primary);
  --btn-border: rgba(148, 163, 184, 0.5);
}

.btn-sm {
  font-size: var(--text-xs);
  padding: 8px 14px;
}

.btn-inline {
  background: transparent;
  border-radius: 999px;
  border-color: transparent;
  padding-inline: 2px;
}

.btn-inline:hover {
  background: transparent;
  box-shadow: none;
  transform: none;
  color: var(--color-accent);
}

.btn-full {
  width: 100%;
}

/* ========================================
   HERO
   ======================================== */
.hero {
  position: relative;
  padding: 80px 0 72px;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(75px);
  opacity: 0.5;
  z-index: -1;
}

.hero::before {
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.35), transparent 60%);
  top: -80px;
  left: -40px;
}

.hero::after {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.45), transparent 60%);
  bottom: -120px;
  right: -80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.3rem, 4vw, 3rem);
  letter-spacing: -0.05em;
  margin: 16px 0 14px;
}

.hero-subtitle {
  color: var(--color-text-muted);
  max-width: 34rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 24px 0 26px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 18px;
  margin: 18px 0 0;
}

.hero-metrics dt {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  letter-spacing: -0.04em;
}

.hero-metrics dd {
  margin: 4px 0 0;
  color: var(--color-text-soft);
  font-size: var(--text-sm);
}

.hero-panel {
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top, rgba(148, 163, 184, 0.15), transparent 60%), #020617;
  padding: 18px 18px 20px;
}

.hero-panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(30, 64, 175, 0.8);
  margin-bottom: 16px;
  font-size: var(--text-xs);
  color: var(--color-text-soft);
}

.hero-panel-header .dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #f9fafb, #f97316 55%, #7c2d12 100%);
}

.hero-flow {
  display: grid;
  gap: 12px;
}

.flow-node {
  border-radius: var(--radius-md);
  padding: 12px 14px;
  border: 1px solid rgba(37, 99, 235, 0.65);
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.98));
  position: relative;
}

.flow-node h3 {
  margin: 0 0 4px;
  font-size: var(--text-sm);
}

.flow-node p {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.flow-node-input {
  border-color: rgba(56, 189, 248, 0.8);
}

.flow-node-logic {
  border-color: rgba(168, 85, 247, 0.85);
}

.flow-node-output {
  border-color: rgba(34, 197, 94, 0.8);
}

.hero-panel-note {
  margin-top: 16px;
  font-size: var(--text-xs);
  color: var(--color-text-soft);
}

/* ========================================
   GRID LAYOUTS
   ======================================== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.services-grid .service-card h3 {
  font-size: var(--text-lg);
  margin: 0 0 6px;
}

.services-grid .service-card p {
  color: var(--color-text-muted);
  margin-bottom: 14px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.tag-list li {
  font-size: var(--text-xs);
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.35);
  color: var(--color-text-muted);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.about-stats-card h3 {
  margin: 0 0 12px;
  font-size: var(--text-lg);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
}

.stats-grid dt {
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.stats-grid dd {
  margin: 4px 0 0;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.bullet-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
}

.bullet-list li {
  position: relative;
  padding-left: 18px;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.bullet-list li + li {
  margin-top: 8px;
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #f9fafb, var(--color-accent) 55%, #0369a1 100%);
}

.case-grid .case-card h3 {
  margin: 0 0 6px;
  font-size: var(--text-lg);
}

.case-grid .case-card p {
  color: var(--color-text-muted);
}

.case-meta {
  font-size: var(--text-xs);
  color: var(--color-text-soft);
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 12px 0 0;
  margin: 0;
}

.pill-list li {
  font-size: var(--text-xs);
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(34, 197, 94, 0.4);
}

.testimonials-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.testimonial-card blockquote {
  margin: 0 0 14px;
  font-size: var(--text-base);
  line-height: 1.6;
}

.testimonial-card .name {
  font-size: var(--text-sm);
  font-weight: 600;
}

.testimonial-card .role {
  font-size: var(--text-xs);
  color: var(--color-text-soft);
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pricing-card .plan-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-soft);
}

.pricing-card h3 {
  margin: 0;
  font-size: var(--text-lg);
}

.plan-price {
  font-size: var(--text-xl);
  font-family: var(--font-display);
  margin: 4px 0 6px;
}

.plan-price span {
  font-size: var(--text-sm);
  color: var(--color-text-soft);
  font-family: var(--font-sans);
}

.pricing-featured {
  position: relative;
}

.pricing-featured::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.2), transparent 55%);
  opacity: 0.5;
  z-index: -1;
}

.pricing-card .bullet-list {
  margin-top: 6px;
  margin-bottom: 10px;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
  gap: 32px;
  align-items: start;
}

.contact-highlights {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.contact-highlights li + li {
  margin-top: 6px;
}

.contact-form {
  padding: 20px 20px 22px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

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

input,
select,
textarea {
  font-family: inherit;
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  border-radius: 10px;
  border: 1px solid var(--color-border-subtle);
  background: rgba(15, 23, 42, 0.95);
  padding: 9px 10px;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-soft);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.3);
  background: rgba(15, 23, 42, 1);
}

textarea {
  resize: vertical;
  min-height: 110px;
}

.form-footnote {
  margin-top: 6px;
  font-size: var(--text-xs);
  color: var(--color-text-soft);
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(15, 23, 42, 0.95);
  background: radial-gradient(circle at top, rgba(15, 23, 42, 1), #020617 70%);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 22px var(--page-padding-x) 28px;
  align-items: flex-start;
}

.footer-copy {
  margin: 6px 0 0;
  max-width: 20rem;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer-meta {
  font-size: var(--text-xs);
  color: var(--color-text-soft);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.1fr);
  }

  .pricing-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding-inline: var(--page-padding-x);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-list {
    position: absolute;
    inset-inline: 16px;
    top: 64px;
    padding: 12px;
    border-radius: 14px;
    background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.22), transparent 60%), rgba(15, 23, 42, 0.98);
    border: 1px solid rgba(148, 163, 184, 0.45);
    box-shadow: 0 24px 70px rgba(15, 23, 42, 1);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    z-index: 50;
  }

  .nav-list a {
    width: 100%;
    padding: 10px 12px;
  }

  .nav-list.is-open {
    display: flex;
  }

  .hero {
    padding-top: 72px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-panel {
    order: -1;
  }

  .cards-grid,
  .testimonials-grid,
  .pricing-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-inner {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .section {
    padding: 52px 0;
  }

  .hero {
    padding-bottom: 56px;
  }

  .header-inner {
    gap: 10px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cards-grid,
  .pricing-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}