/* ==========================================================================
   GENFO AI — CHROME
   Reset, base elements, and shared UI components used across every page.
   ========================================================================== */

/* ---- Reset --------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
ul[class], ol[class] { padding: 0; margin: 0; list-style: none; }
img, picture, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }

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

/* ---- Base ------------------------------------------------------------ */
html, body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  letter-spacing: var(--ls-normal);
  min-height: 100%;
}

body {
  position: relative;
  overflow-x: hidden;
}

h1, h2, h3, .font-display {
  font-family: var(--font-display);
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-tight);
  font-weight: 600;
}

::selection { background: var(--aurora-violet); color: #fff; }

:focus-visible {
  outline: none;
  box-shadow: var(--glow-focus);
  border-radius: var(--radius-sm);
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--glass-border-hi);
  border-radius: var(--radius-pill);
}
::-webkit-scrollbar-thumb:hover { background: var(--aurora-violet); }

/* ---- Aurora background layer ---------------------------------------
   A fixed, full-viewport layer placed behind all content via z-index.
   Drop <div class="aurora-field"><span class="noise-veil"></span></div>
   right after <body> on every page.
------------------------------------------------------------------------- */
.aurora-field {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: var(--bg-base);
}

.aurora-field::before {
  content: "";
  position: absolute;
  inset: -10%;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(46,230,201,0.16), transparent 42%),
    radial-gradient(circle at 82% 12%, rgba(140,107,255,0.18), transparent 45%),
    radial-gradient(circle at 70% 78%, rgba(225,84,214,0.14), transparent 48%),
    radial-gradient(circle at 18% 82%, rgba(79,210,255,0.12), transparent 45%);
  filter: blur(60px) saturate(120%);
  animation: aurora-drift var(--dur-aurora) ease-in-out infinite alternate;
}

.aurora-field::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.018) 0px, transparent 1px, transparent 2px);
  opacity: 0.6;
  mix-blend-mode: overlay;
}

.aurora-field .noise-veil {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% -10%, transparent 0%, var(--bg-base) 78%);
}

@keyframes aurora-drift {
  0%   { transform: translate3d(0, 0, 0) scale(1) rotate(0deg); }
  50%  { transform: translate3d(-2%, 3%, 0) scale(1.08) rotate(4deg); }
  100% { transform: translate3d(2%, -2%, 0) scale(1.02) rotate(-3deg); }
}

/* ---- Signal line — signature motif ----------------------------------
   A thin animated pulse line. Used in section dividers throughout.
------------------------------------------------------------------------- */
.signal-line {
  position: relative;
  height: 1px;
  width: 100%;
  background: var(--border-subtle);
  overflow: hidden;
}
.signal-line::after {
  content: "";
  position: absolute;
  top: 0; left: -30%;
  height: 100%;
  width: 30%;
  background: var(--aurora-gradient);
  filter: blur(0.5px);
  animation: signal-travel 5.5s var(--ease-in-out) infinite;
}
@keyframes signal-travel {
  0%   { left: -30%; opacity: 0; }
  8%   { opacity: 1; }
  50%  { left: 50%; opacity: 1; }
  92%  { opacity: 1; }
  100% { left: 130%; opacity: 0; }
}

/* ---- Layout primitives ----------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section { padding-block: var(--space-10); }
@media (max-width: 720px) { .section { padding-block: var(--space-8); } }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -48px;
  background: var(--bg-raised);
  color: var(--text-primary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-default);
  z-index: 200;
  transition: top var(--dur-base) var(--ease-out);
}
.skip-link:focus { top: var(--space-4); }

/* ---- Glass panel ------------------------------------------------------ */
.glass-panel {
  background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  box-shadow: var(--shadow-md);
}

/* ---- Top navigation ---------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 10, 16, 0.6);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: var(--space-5);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: var(--ls-tight);
  white-space: nowrap;
}
.brand-mark {
  width: 30px; height: 30px;
  border-radius: 9px;
  background: var(--aurora-gradient);
  position: relative;
  flex-shrink: 0;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 5px;
  background: var(--bg-base);
  clip-path: polygon(0 100%, 100% 100%, 100% 35%, 55% 35%, 55% 0, 30% 0, 30% 65%, 0 65%);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.nav-links a {
  font-size: var(--fs-body-sm);
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-out);
  position: relative;
}
.nav-links a:hover { color: var(--text-primary); }

.nav-actions { display: flex; align-items: center; gap: var(--space-3); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
}
.nav-toggle svg { width: 18px; height: 18px; }

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-actions .btn-secondary { display: none; }
}

/* Mobile nav drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(5, 6, 10, 0.88);
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  padding: var(--space-6) var(--space-5);
  transform: translateY(-12px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility var(--dur-base);
}
.mobile-drawer.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mobile-drawer .drawer-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-7); }
.mobile-drawer nav { display: flex; flex-direction: column; gap: var(--space-5); margin-bottom: var(--space-7); }
.mobile-drawer nav a { font-family: var(--font-display); font-size: var(--fs-h3); }
.mobile-drawer .drawer-actions { display: flex; flex-direction: column; gap: var(--space-3); margin-top: auto; }

/* ---- Buttons ---------------------------------------------------------- */
.btn {
  --btn-h: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: var(--btn-h);
  padding-inline: var(--space-5);
  border-radius: var(--radius-pill);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  letter-spacing: var(--ls-normal);
  border: 1px solid transparent;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              opacity var(--dur-fast) var(--ease-out);
  position: relative;
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }
.btn-sm { --btn-h: 38px; padding-inline: var(--space-4); font-size: var(--fs-caption); }
.btn-lg { --btn-h: 54px; padding-inline: var(--space-6); font-size: var(--fs-body-lg); }
.btn-block { width: 100%; }

.btn-primary {
  background: var(--aurora-gradient);
  color: var(--text-on-accent);
  box-shadow: 0 1px 0 rgba(255,255,255,0.4) inset, var(--shadow-sm);
}
.btn-primary:hover { box-shadow: 0 1px 0 rgba(255,255,255,0.5) inset, var(--glow-violet); transform: translateY(-1px); }

.btn-secondary {
  background: var(--glass-fill);
  color: var(--text-primary);
  border-color: var(--glass-border-hi);
}
.btn-secondary:hover { background: var(--glass-fill-hi); border-color: var(--aurora-cyan); }

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

.btn-danger {
  background: rgba(255,92,122,0.12);
  color: var(--color-error);
  border-color: rgba(255,92,122,0.35);
}
.btn-danger:hover { background: rgba(255,92,122,0.2); }

.btn-social {
  background: var(--bg-raised-2);
  color: var(--text-primary);
  border-color: var(--border-default);
  width: 100%;
}
.btn-social:hover { background: var(--bg-raised); border-color: var(--glass-border-hi); }
.btn-social svg { width: 18px; height: 18px; flex-shrink: 0; }

.btn-icon {
  --btn-h: 40px;
  width: var(--btn-h);
  padding: 0;
  border-radius: 50%;
}

/* ---- Spinner ----------------------------------------------------------- */
.spinner {
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.25);
  border-top-color: currentColor;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}
.spinner-lg { width: 32px; height: 32px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

.btn .spinner { display: none; }
.btn.is-loading .spinner { display: inline-flex; position: absolute; }
.btn.is-loading .btn-label { opacity: 0; }
.btn.is-loading { pointer-events: none; }

/* ---- Form elements ------------------------------------------------------ */
.field { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-5); }
.field-label {
  font-size: var(--fs-body-sm);
  color: var(--text-secondary);
  font-weight: 500;
}
.field-input-wrap { position: relative; }

.field-input {
  width: 100%;
  height: 50px;
  background: var(--bg-raised-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding-inline: var(--space-4);
  color: var(--text-primary);
  font-size: var(--fs-body);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.field-input::placeholder { color: var(--text-tertiary); }
.field-input:hover { border-color: var(--glass-border-hi); }
.field-input:focus {
  outline: none;
  border-color: var(--aurora-cyan);
  box-shadow: var(--glow-focus);
  background: var(--bg-raised);
}
.field-input.has-error { border-color: var(--color-error); }
.field-input.has-error:focus { box-shadow: var(--glow-error); }

.field-toggle-visibility {
  position: absolute;
  right: var(--space-2);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-tertiary);
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
}
.field-toggle-visibility:hover { color: var(--text-primary); }
.field-toggle-visibility svg { width: 18px; height: 18px; }

.field-error {
  display: none;
  font-size: var(--fs-caption);
  color: var(--color-error);
  align-items: center;
  gap: var(--space-1);
}
.field-error.is-visible { display: flex; animation: shake-in var(--dur-base) var(--ease-out); }
@keyframes shake-in {
  0% { transform: translateX(0); opacity: 0; }
  30% { transform: translateX(-4px); }
  60% { transform: translateX(3px); }
  100% { transform: translateX(0); opacity: 1; }
}

.field-hint { font-size: var(--fs-caption); color: var(--text-tertiary); }

/* ---- Alert / banner ----------------------------------------------------- */
.alert {
  display: none;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--fs-body-sm);
  margin-bottom: var(--space-5);
}
.alert.is-visible { display: flex; animation: fade-slide-in var(--dur-base) var(--ease-out); }
.alert-error { background: rgba(255,92,122,0.1); border: 1px solid rgba(255,92,122,0.3); color: #ffb3c0; }
.alert-success { background: rgba(54,224,160,0.1); border: 1px solid rgba(54,224,160,0.3); color: #a7f3d6; }
.alert svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }

/* ---- Toast container ------------------------------------------------------ */
.toast-stack {
  position: fixed;
  bottom: var(--space-5);
  right: var(--space-5);
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: min(360px, calc(100vw - 2 * var(--space-5)));
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--bg-raised);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-lg);
  font-size: var(--fs-body-sm);
  animation: toast-in var(--dur-base) var(--ease-out);
}
.toast.is-leaving { animation: toast-out var(--dur-base) var(--ease-out) forwards; }
.toast-error { border-color: rgba(255,92,122,0.4); }
.toast-success { border-color: rgba(54,224,160,0.4); }
.toast-dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; flex-shrink: 0; }
.toast-error .toast-dot { background: var(--color-error); }
.toast-success .toast-dot { background: var(--color-success); }
.toast-info .toast-dot { background: var(--aurora-cyan); }

@keyframes toast-in { from { opacity: 0; transform: translateY(10px) scale(0.97); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes toast-out { to { opacity: 0; transform: translateX(20px) scale(0.96); } }

/* ---- Generic reveal animations ------------------------------------------- */
@keyframes fade-slide-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---- Badge --------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  border: 1px solid var(--glass-border-hi);
  background: var(--glass-fill);
  color: var(--text-secondary);
}
.badge-accent { color: var(--aurora-teal); border-color: rgba(46,230,201,0.35); background: rgba(46,230,201,0.08); }
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--aurora-teal); box-shadow: 0 0 8px var(--aurora-teal); }

/* ---- Avatar -------------------------------------------------------------- */
.avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--aurora-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-on-accent);
  flex-shrink: 0;
  text-transform: uppercase;
}

/* ---- Footer ---------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding-block: var(--space-8) var(--space-6);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-7);
  margin-bottom: var(--space-7);
}
.footer-col h4 {
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  color: var(--text-tertiary);
  margin-bottom: var(--space-4);
  font-weight: 600;
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a { color: var(--text-secondary); font-size: var(--fs-body-sm); transition: color var(--dur-fast); }
.footer-col a:hover { color: var(--text-primary); }
.footer-brand p { color: var(--text-tertiary); font-size: var(--fs-body-sm); max-width: 280px; margin-top: var(--space-3); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
  color: var(--text-tertiary);
  font-size: var(--fs-caption);
}
.footer-socials { display: flex; gap: var(--space-3); }
.footer-socials a {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid var(--border-default);
  display: flex; align-items: center; justify-content: center;
}
.footer-socials a:hover { border-color: var(--aurora-cyan); color: var(--aurora-cyan); }
.footer-socials svg { width: 16px; height: 16px; }

@media (max-width: 780px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}
