/* UI Exo — NeonSpark-inspired design system */
:root {
  --color-body: #0c0c0c;
  --color-dark: #000000;
  --color-secondary: rgba(33, 33, 33, 0.2);
  --color-card: rgba(33, 33, 33, 0.55);
  --color-primary: #ffffff;
  --color-text: #f0f3f9;
  --color-text-light: #c0c0c0;
  --color-light: #a0a0a0;
  --color-border: #b3b8c2;
  --color-gradient: linear-gradient(90deg, #919191 8.68%, #fff 23.34%, #fff 56.71%, #919191 100%);
  --radius-card: 1rem;
  --radius-pill: 9999px;
  --font: "Epilogue", system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--color-body);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

/* Gradient text */
.grad-text {
  background: var(--color-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.italic { font-style: italic; }

/* Header */
.site-header {
  position: absolute;
  inset-inline: 0;
  top: 1.25rem;
  z-index: 50;
}
.site-header.is-fixed {
  position: fixed;
  top: 0.75rem;
  animation: headerIn 0.35s ease;
}
@keyframes headerIn {
  from { transform: translateY(-12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0.85rem 0.65rem 1.1rem;
  border-radius: var(--radius-pill);
  background: rgba(0,0,0,0.55);
  border: 1px solid rgba(179, 184, 194, 0.18);
  backdrop-filter: blur(12px);
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.logo-mark {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 0.45rem;
  display: grid;
  place-items: center;
  background: #fff;
  color: #000;
  font-size: 0.85rem;
  font-weight: 700;
}
.nav-links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}
.nav-links a {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-light);
}
.nav-links a:hover { color: #fff; }
.nav-cta, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 0;
  cursor: pointer;
  border-radius: var(--radius-pill);
  padding: 0.7rem 1.25rem;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.9rem;
}
.btn-primary, .nav-cta {
  background: #fff;
  color: #000;
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(179, 184, 194, 0.35);
}
.btn-primary:hover, .nav-cta:hover { filter: brightness(0.92); }
.btn:disabled,
.btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
  filter: none !important;
}
.menu-toggle {
  display: none;
  background: transparent;
  border: 0;
  color: #fff;
  font-size: 1.25rem;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 0 4rem;
  overflow: hidden;
}
.hero > .container {
  position: relative;
  z-index: 2;
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}
.hero-light {
  position: absolute;
  width: min(42rem, 90vw);
  height: min(42rem, 90vw);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.10), transparent 68%);
  filter: blur(10px);
  top: -5%;
  left: 70%;
  transform: translateX(-50%);
  animation: glowPulse 3s ease-in-out infinite, light-horizontal-flow 8s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}
@keyframes glowPulse {
  0%, 100% { filter: drop-shadow(0 0 20px rgba(255,255,255,0.3)); }
  50% { filter: drop-shadow(0 0 30px rgba(255,255,255,0.45)); }
}
@keyframes light-horizontal-flow {
  0%, 100% { transform: translateX(-50%); }
  50% { transform: translateX(calc(-50% + 40px)); }
}
.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  max-width: 16ch;
  color: #fff;
  text-shadow: 0 1px 18px rgba(0, 0, 0, 0.55);
}
.hero p.lead {
  max-width: 38rem;
  color: var(--color-text-light);
  font-size: 1.05rem;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.45);
}
.eyebrow {
  color: var(--color-text-light);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.4);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* Marquee */
.marquee {
  margin-top: 4rem;
  overflow: hidden;
  border-block: 1px solid rgba(179,184,194,0.12);
  padding-block: 1rem;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track {
  display: flex;
  gap: 3rem;
  width: max-content;
  animation: marquee 20s linear infinite;
  color: var(--color-light);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Sections */
.section {
  padding: 5rem 0;
}
.section h2 {
  font-size: clamp(1.75rem, 3vw, 3rem);
  letter-spacing: -0.03em;
  margin: 0 0 0.75rem;
}
.section .sub {
  color: var(--color-text-light);
  max-width: 36rem;
  margin-bottom: 2rem;
}

.grid-4, .grid-3, .grid-2 {
  display: grid;
  gap: 1rem;
}
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--color-card);
  border: 1px solid rgba(179, 184, 194, 0.14);
  border-radius: var(--radius-card);
  padding: 1.35rem;
  position: relative;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: conic-gradient(from var(--gradient-angle, 0deg), transparent, rgba(255,255,255,0.35), transparent 40%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s ease;
  animation: rotateBorder 4s linear infinite;
  pointer-events: none;
}
.card:hover::before { opacity: 1; }
@property --gradient-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}
@keyframes rotateBorder {
  to { --gradient-angle: 360deg; }
}
.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
}
.card p { margin: 0; color: var(--color-text-light); font-size: 0.95rem; }
.card-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.75rem;
  display: grid;
  place-items: center;
  background: rgba(255,255,255,0.08);
  margin-bottom: 1rem;
}

.cta-banner {
  padding: 2.5rem;
  border-radius: 1.25rem;
  background: linear-gradient(135deg, rgba(255,255,255,0.06), rgba(255,255,255,0.01));
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: 0 0 40px rgba(255,255,255,0.05);
}
.cta-banner h2 { margin-top: 0; }

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}
/* Hero must paint immediately — IO often misses first paint on mobile Safari */
.hero .reveal {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-light { animation: none; }
  .marquee-track { animation: none; }
}

/* Forms */
.auth-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 7rem 1rem 3rem;
}
.auth-card {
  width: min(420px, 100%);
  padding: 2rem;
}
.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 0.35rem;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  background: rgba(0,0,0,0.35);
  border: 1px solid rgba(179,184,194,0.25);
  border-radius: 0.75rem;
  padding: 0.8rem 0.95rem;
  color: #fff;
  font-family: var(--font);
}
.alert {
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  margin-bottom: 1rem;
  background: rgba(255,80,80,0.12);
  border: 1px solid rgba(255,80,80,0.35);
  color: #ffd0d0;
  font-size: 0.9rem;
}
.alert-ok {
  background: rgba(80,255,140,0.1);
  border-color: rgba(80,255,140,0.3);
  color: #d8ffe8;
}
.btn-danger-soft {
  color: #fca5a5 !important;
  border-color: rgba(248, 113, 113, 0.35) !important;
}
.btn-danger-soft:hover {
  background: rgba(248, 113, 113, 0.12) !important;
}

/* Dashboard / Admin shells */
.app-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}
.side {
  border-right: 1px solid rgba(179,184,194,0.12);
  padding: 1.5rem 1rem;
  background: rgba(0,0,0,0.35);
}
.side .logo { margin-bottom: 2rem; padding-inline: 0.5rem; }
.side nav a {
  display: block;
  padding: 0.7rem 0.85rem;
  border-radius: 0.75rem;
  color: var(--color-text-light);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}
.side nav a:hover, .side nav a.active {
  background: rgba(255,255,255,0.06);
  color: #fff;
}
.main {
  padding: 1.5rem;
}
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat .num {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.stat .lbl {
  color: var(--color-text-light);
  font-size: 0.85rem;
}
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.table th, .table td {
  text-align: left;
  padding: 0.75rem 0.5rem;
  border-bottom: 1px solid rgba(179,184,194,0.12);
}
.table th { color: var(--color-text-light); font-weight: 500; }
.codebox {
  font-family: var(--mono);
  font-size: 0.8rem;
  background: #000;
  border: 1px solid rgba(179,184,194,0.2);
  border-radius: 0.75rem;
  padding: 1rem;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  background: rgba(255,255,255,0.08);
  color: var(--color-text-light);
}
.example-prompt {
  margin-top: 1.5rem;
  padding: 1.75rem 1.5rem 1.5rem;
  border-radius: 1.25rem;
  background:
    radial-gradient(120% 80% at 10% 0%, rgba(125, 211, 252, 0.08), transparent 55%),
    linear-gradient(160deg, #12151c 0%, #0b0d12 100%);
  border: 1px solid rgba(179, 184, 194, 0.18);
}
.example-prompt-label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 0.85rem;
}
.example-prompt-body {
  margin: 0;
  padding: 1.25rem 1.35rem;
  border-radius: 0.9rem;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(179, 184, 194, 0.14);
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  line-height: 1.75;
  color: #f2f4f8;
  direction: rtl;
  text-align: right;
  font-weight: 500;
}
.example-prompt-en {
  margin: 1rem 0 0;
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.55;
  max-width: 46rem;
}
.example-prompt-hint {
  margin: 1.1rem 0 0;
  font-size: 0.85rem;
  color: #8b93a7;
}
.example-prompt-hint code {
  font-size: 0.8rem;
  color: #c8d0dc;
}
.prompt-md {
  white-space: pre-wrap;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.55;
  max-height: 70vh;
  overflow: auto;
}

/* Footer */
.site-footer {
  position: relative;
  padding: 4rem 0 2rem;
  border-top: 1px solid rgba(179,184,194,0.12);
  margin-top: 3rem;
  overflow: hidden;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 1.5rem;
}
.site-footer h4 {
  margin: 0 0 0.85rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-light);
}
.site-footer a, .site-footer p {
  color: var(--color-text-light);
  font-size: 0.9rem;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.45rem; }
.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(179,184,194,0.1);
  color: var(--color-light);
  font-size: 0.85rem;
}
.watermark {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1.5rem;
  text-align: center;
  font-size: clamp(4rem, 14vw, 12rem);
  font-weight: 700;
  letter-spacing: -0.06em;
  color: rgba(160,160,160,0.08);
  pointer-events: none;
  line-height: 1;
  user-select: none;
}

.page-hero {
  padding: 9rem 0 3rem;
}
.crumb {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(179,184,194,0.25);
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 1rem;
}

@media (max-width: 960px) {
  .grid-4, .stat-row, .footer-grid { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .app-shell { grid-template-columns: 1fr; }
  .side { border-right: 0; border-bottom: 1px solid rgba(179,184,194,0.12); }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 1rem;
    right: 1rem;
    background: #000;
    border-radius: 1rem;
    padding: 1rem;
    border: 1px solid rgba(179,184,194,0.2);
    z-index: 60;
  }
  .menu-toggle { display: inline-grid; place-items: center; }
  .site-header .btn-ghost { display: none; }
  .hero {
    min-height: auto;
    min-height: 100svh;
    justify-content: flex-start;
    padding: 6.5rem 0 2.5rem;
    overflow: visible;
  }
  .hero h1 {
    max-width: none;
    font-size: clamp(2rem, 9vw, 3rem);
  }
  .hero p.lead {
    font-size: 1rem;
  }
  .hero-light {
    width: 14rem;
    height: 14rem;
    top: 0.5rem;
    left: 85%;
    opacity: 0.45;
    filter: blur(14px);
    animation: none;
  }
  .marquee { margin-top: 2.5rem; }
}
@media (max-width: 640px) {
  .grid-4, .grid-2, .stat-row, .footer-grid { grid-template-columns: 1fr; }
  .nav-shell {
    padding: 0.55rem 0.65rem 0.55rem 0.85rem;
  }
  .nav-cta, .btn {
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
  }
  .hero {
    padding: 5.75rem 0 2rem;
  }
}