/* ==========================================================================
   UNIVERSAL DESIGN SYSTEM
   Shared stylesheet for all "Universal" utility microsites.
   Do not add site-specific tool styling here — keep that in each site's
   own /assets/tool.css so this file can be copied unchanged to every
   new project in the portfolio.
   ========================================================================== */

:root {
  /* Cosmic palette */
  --bg-void: #030308;
  --bg-deep: #0a0c18;
  --bg-nebula: #0d1129;
  --nebula-purple: rgba(120, 95, 210, 0.30);
  --nebula-blue: rgba(55, 95, 180, 0.26);
  --nebula-purple-soft: rgba(150, 110, 220, 0.15);

  --accent: #9b8cf2;
  --accent-strong: #b4a7ff;
  --accent-blue: #6fa3e0;

  --text-primary: #f5f5f8;
  --text-secondary: rgba(229, 229, 235, 0.88);
  --text-muted: rgba(229, 229, 235, 0.65);

  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-bg-strong: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.12);

  --surface: #0a0a10;
  --surface-raised: #101018;
  --border-subtle: rgba(255, 255, 255, 0.08);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 7rem;

  --max-width: 1120px;

  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-color-scheme: light) {
  :root { color-scheme: dark; }
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  background: var(--surface);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: inherit; }

.u-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* ---------- Skip link (accessibility) ---------- */
.u-skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #0a0a10;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 8px 0;
  z-index: 1000;
  font-weight: 600;
  text-decoration: none;
}
.u-skip-link:focus {
  left: 0;
}

/* ---------- Focus visibility ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ==========================================================================
   NAV
   ========================================================================== */
.u-nav {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: var(--space-3) 0;
}
.u-nav .u-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}
.u-brand {
  display: flex;
  align-items: baseline;
  gap: 0.4em;
  text-decoration: none;
  font-family: var(--font-display);
}
.u-brand-prefix {
  font-size: 0.9rem;
  letter-spacing: 0.18em;
  text-transform: lowercase;
  color: rgba(210, 200, 255, 0.75);
}
.u-brand-name {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.u-nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
}
.u-nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s var(--ease-out);
}
.u-nav-links a:hover { color: var(--text-primary); }

@media (max-width: 720px) {
  .u-nav-links { display: none; }
}

/* ==========================================================================
   COSMIC HERO
   ========================================================================== */
.u-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(165deg, var(--bg-void) 0%, var(--bg-deep) 42%, var(--bg-nebula) 75%, #0d0f22 100%);
  padding: var(--space-7) 0 var(--space-6);
  min-height: 640px;
  display: flex;
  align-items: center;
}
.u-hero::before,
.u-hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(30px);
  pointer-events: none;
}
.u-hero::before {
  top: -70px;
  left: -50px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, var(--nebula-purple) 0%, transparent 70%);
}
.u-hero::after {
  bottom: -90px;
  right: -70px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--nebula-blue) 0%, transparent 70%);
}
.u-hero-extra-glow {
  position: absolute;
  top: 28%;
  right: -40px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--nebula-purple-soft) 0%, transparent 70%);
  filter: blur(26px);
  pointer-events: none;
}
.u-stars {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.u-star {
  position: absolute;
  border-radius: 50%;
  background: #fff;
}
@keyframes u-twinkle {
  0%, 100% { opacity: 0.15; }
  50% { opacity: 1; }
}
@keyframes u-hue {
  0%, 100% { filter: hue-rotate(0deg); }
  50% { filter: hue-rotate(35deg); }
}
.u-comet {
  position: absolute;
  height: 1.8px;
  border-radius: 2px;
  opacity: 0;
  transform-origin: 100% 50%;
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.8) 80%, rgba(255,255,255,1) 100%);
  pointer-events: none;
}
.u-comet::after {
  content: "";
  position: absolute;
  right: -1.5px;
  top: 50%;
  width: 3.5px;
  height: 3.5px;
  border-radius: 50%;
  background: #fff;
  transform: translateY(-50%);
  box-shadow: 0 0 5px 2px rgba(255,255,255,0.85);
}

.u-hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-4);
}
.u-eyebrow {
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  text-transform: lowercase;
  color: rgba(210, 200, 255, 0.85);
  margin: 0 0 0.6rem;
  font-weight: 500;
}
.u-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.1rem);
  font-weight: 650;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--text-primary);
}
.u-hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 60ch;
  margin: 0.6rem auto 0;
  white-space: nowrap;
}

/* USP pill row */
.u-usp-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  margin-top: var(--space-1);
}
.u-usp-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-size: 0.82rem;
  color: var(--text-secondary);
  background: var(--glass-bg);
  border: 0.5px solid var(--glass-border);
  border-radius: 999px;
  padding: 0.4em 0.9em;
}
.u-usp-pill svg { width: 14px; height: 14px; flex-shrink: 0; }

/* ==========================================================================
   GLASS CARD / TOOL SHELL
   ========================================================================== */
.u-glass-card {
  background: var(--glass-bg);
  border: 0.5px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.u-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 0.75em 1.4em;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s var(--ease-out), background 0.15s var(--ease-out), opacity 0.15s var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}
.u-btn:active { transform: scale(0.97); }
.u-btn-primary {
  background: var(--text-primary);
  color: #0a0a10;
}
.u-btn-primary:hover { opacity: 0.88; }
.u-btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 0.5px solid var(--glass-border);
}
.u-btn-secondary:hover { background: var(--glass-bg-strong); }
.u-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.u-btn-block { width: 100%; }

/* ==========================================================================
   CONTENT SECTIONS (below the fold — calm, readable, no star animation)
   ========================================================================== */
.u-section {
  padding: var(--space-6) 0;
  border-top: 1px solid var(--border-subtle);
}
.u-section-tight { padding: var(--space-5) 0; }
.u-section-head {
  max-width: 60ch;
  margin: 0 0 var(--space-4);
}
.u-section-head.u-center { margin-left: auto; margin-right: auto; text-align: center; }
.u-kicker {
  font-size: 0.88rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin: 0 0 0.6rem;
  font-weight: 600;
}
.u-section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 650;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
}
.u-section p {
  color: var(--text-secondary);
  margin: 0;
}
.u-lede {
  font-size: 1.15rem;
  color: var(--text-secondary);
}

.u-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.u-card {
  background: var(--surface-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}
.u-card h3 {
  font-size: 1.02rem;
  font-weight: 600;
  margin: 0 0 0.4rem;
}
.u-card p {
  font-size: 1rem;
  color: var(--text-secondary);
}

.u-steps {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(3, 1fr);
  counter-reset: u-step;
}
@media (max-width: 720px) {
  .u-steps { grid-template-columns: 1fr; }
}
.u-step {
  position: relative;
  padding-top: 2.2rem;
}
.u-step::before {
  counter-increment: u-step;
  content: counter(u-step);
  position: absolute;
  top: 0;
  left: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 0.5px solid var(--glass-border);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-strong);
}
.u-step h3 { font-size: 1rem; font-weight: 600; margin: 0 0 0.35rem; }
.u-step p { font-size: 1rem; color: var(--text-secondary); margin: 0; }

/* ==========================================================================
   FAQ (native details/summary — zero JS, fully accessible)
   ========================================================================== */
.u-faq-group { margin-bottom: var(--space-4); }
.u-faq-group:last-child { margin-bottom: 0; }
.u-faq-group h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin: 0 0 0.8rem;
}
.u-faq-item {
  border-bottom: 1px solid var(--border-subtle);
}
.u-faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 550;
  font-size: 0.98rem;
}
.u-faq-item summary::-webkit-details-marker { display: none; }
.u-faq-item summary::after {
  content: "+";
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform 0.2s var(--ease-out);
}
.u-faq-item[open] summary::after { transform: rotate(45deg); }
.u-faq-item .u-faq-answer {
  padding: 0 0 1.1rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 70ch;
}

/* ==========================================================================
   AD SLOTS
   ========================================================================== */
.u-ad-slot {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 90px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin: var(--space-4) 0;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.u-footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-5) 0 var(--space-4);
  background: var(--bg-void);
}
.u-footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
@media (max-width: 760px) {
  .u-footer-grid { grid-template-columns: 1fr 1fr; }
}
.u-footer-brand .u-brand { margin-bottom: 0.6rem; }
.u-footer p.u-footer-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 32ch;
}
.u-footer h4 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin: 0 0 0.8rem;
}
.u-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.u-footer a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  text-decoration: none;
}
.u-footer a:hover { color: var(--text-primary); }
.u-footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-3);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   LEGAL / CONTENT PAGES (non-hero pages)
   ========================================================================== */
.u-page-header {
  background: linear-gradient(165deg, var(--bg-void) 0%, var(--bg-deep) 100%);
  padding: calc(var(--space-7) - 1rem) 0 var(--space-4);
}
.u-page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  font-weight: 650;
  letter-spacing: -0.01em;
  margin: 0;
}
.u-page-header p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0.5rem 0 0;
}
.u-prose {
  max-width: 72ch;
  padding: var(--space-5) var(--space-3) var(--space-6);
  margin: 0 auto;
  color: var(--text-secondary);
}
.u-prose h2 {
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 650;
  margin: var(--space-4) 0 0.6rem;
}
.u-prose h2:first-child { margin-top: 0; }
.u-prose p { margin: 0 0 1rem; }
.u-prose ul { margin: 0 0 1rem; padding-left: 1.2rem; }
.u-prose li { margin-bottom: 0.4rem; }
.u-prose a { color: var(--accent-strong); }

/* ==========================================================================
   COOKIE CONSENT BANNER
   ========================================================================== */
.u-cookie-banner {
  position: fixed;
  left: var(--space-2);
  right: var(--space-2);
  bottom: var(--space-2);
  z-index: 200;
  max-width: 560px;
  margin: 0 auto;
  background: rgba(10, 10, 16, 0.92);
  border: 0.5px solid var(--glass-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  padding: var(--space-3);
  box-shadow: 0 10px 40px rgba(0,0,0,0.4);
  transform: translateY(140%);
  transition: transform 0.4s var(--ease-out);
}
.u-cookie-banner.is-visible { transform: translateY(0); }
.u-cookie-banner p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0 0 var(--space-2);
}
.u-cookie-banner a { color: var(--accent-strong); text-decoration: underline; }
.u-cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.u-cookie-actions .u-btn { font-size: 0.85rem; padding: 0.6em 1.1em; }

@media (max-width: 480px) {
  .u-cookie-banner { left: 0.6rem; right: 0.6rem; bottom: 0.6rem; }
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */
.u-sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}
.u-mt-0 { margin-top: 0; }