/* ============================================================
 * Neralon Technologies — corporate site styles
 * Premium, dark, neutral parent-brand aesthetic. Indigo→teal
 * signature gradient; each app card carries its own accent.
 * ============================================================ */

:root {
  /* Surfaces */
  --bg:        #0b0d12;
  --bg-2:      #0f131b;
  --surface-1: #141925;
  --surface-2: #1a2030;
  --surface-hover: #222a3d;
  --border:    #232a3a;
  --border-strong: #313a52;

  /* Text */
  --fg-1: #eef1f7;
  --fg-2: #c4ccdb;
  --fg-3: #93a0b8;
  --fg-4: #6b778f;

  /* Brand */
  --indigo: #7c8cf8;
  --teal:   #3ad6c5;
  --grad:   linear-gradient(120deg, #7c8cf8 0%, #6ad0e0 50%, #3ad6c5 100%);

  /* Type */
  --font-sans:    'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Sora', var(--font-sans);

  /* Layout */
  --maxw: 1140px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 22px;
  --t: 200ms cubic-bezier(.2,.7,.3,1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--fg-2);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3, h4 { font-family: var(--font-display); color: var(--fg-1); line-height: 1.1; }

.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ───────── Buttons ───────── */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 600; font-size: .95rem;
  padding: .8rem 1.4rem; border-radius: var(--r-md);
  border: 1px solid transparent; cursor: pointer;
  transition: transform var(--t), background var(--t), border-color var(--t);
}
.btn:hover { transform: translateY(-2px); }
.btn-sm { padding: .5rem .9rem; font-size: .85rem; }
.btn-primary {
  color: #07120f; background: var(--grad);
  box-shadow: 0 8px 30px -10px rgba(58,214,197,.5);
}
.btn-ghost {
  color: var(--fg-1); border-color: var(--border-strong);
  background: rgba(255,255,255,.02);
}
.btn-ghost:hover { background: var(--surface-2); border-color: var(--indigo); }

/* ───────── Nav ───────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2rem; gap: 1rem;
  background: rgba(11,13,18,.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: .6rem; }
.brand-word { font-family: var(--font-display); font-weight: 800; font-size: 1.1rem; color: var(--fg-1); letter-spacing: -.01em; }
.brand-light { color: var(--fg-3); font-weight: 600; }
.nav-links { display: flex; align-items: center; gap: 1.6rem; font-size: .95rem; font-weight: 500; }
.nav-links > a:not(.btn) { color: var(--fg-3); transition: color var(--t); }
.nav-links > a:not(.btn):hover { color: var(--fg-1); }

/* ───────── Hero ───────── */
.hero { position: relative; padding: 7rem 2rem 6rem; overflow: hidden; }
.hero-glow {
  position: absolute; inset: -30% 0 auto 0; height: 700px;
  background: radial-gradient(60% 60% at 50% 0%, rgba(124,140,248,.22), transparent 60%),
              radial-gradient(50% 50% at 75% 10%, rgba(58,214,197,.16), transparent 60%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: var(--maxw); margin: 0 auto; text-align: center; }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); font-weight: 800; letter-spacing: -.02em; }
.lede { max-width: 620px; margin: 1.5rem auto 0; font-size: 1.2rem; color: var(--fg-3); }
.hero-actions { display: flex; gap: 1rem; justify-content: center; margin-top: 2.4rem; flex-wrap: wrap; }

/* ───────── Section heads ───────── */
.section-kicker {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--teal); margin-bottom: .8rem;
}
.section-head { text-align: center; max-width: 620px; margin: 0 auto 3rem; }
.section-head h2 { font-size: clamp(2rem, 4vw, 2.8rem); }
.section-head p { color: var(--fg-3); margin-top: .8rem; font-size: 1.1rem; }

/* ───────── Apps launcher ───────── */
.apps { max-width: var(--maxw); margin: 0 auto; padding: 5rem 2rem; }

/* Carousel: a horizontal filmstrip. All cards sit in a flex track that
   slides left/right; the frame clips to one card at a time. JS clones the
   first card onto the end for a seamless forward loop. */
.app-carousel {
  max-width: 620px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--r-xl);
}
.carousel-track {
  display: flex;
  will-change: transform;
}
.app-carousel .app-card {
  flex: 0 0 100%;
  min-width: 0;
}
/* No vertical hover lift inside the clipped frame (it would get cropped). */
.app-carousel .app-card:hover { transform: none; }

/* Dots */
.carousel-dots {
  display: flex; justify-content: center; gap: .6rem;
  margin-top: 2rem;
}
.carousel-dots button {
  width: 9px; height: 9px; padding: 0; border: 0; cursor: pointer;
  border-radius: 99px; background: var(--border-strong);
  transition: background var(--t), width var(--t);
}
.carousel-dots button:hover { background: var(--fg-4); }
.carousel-dots button.is-active { width: 26px; background: var(--grad); }

.app-card {
  position: relative; display: flex; flex-direction: column;
  padding: 2rem; border-radius: var(--r-xl);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--c) 6%, transparent), transparent 40%),
    var(--surface-1);
  border: 1px solid var(--border);
  transition: transform var(--t), border-color var(--t), box-shadow var(--t);
  overflow: hidden;
}
.app-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--c), var(--c2));
  opacity: .8;
}
.app-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--c) 50%, var(--border));
  box-shadow: 0 24px 60px -28px color-mix(in srgb, var(--c) 70%, transparent);
}
.app-card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.4rem; }
.app-logo {
  display: grid; place-items: center; width: 52px; height: 52px;
  font-family: var(--font-display); font-weight: 800; font-size: 1.5rem;
  color: #07120f; border-radius: 14px;
  background: linear-gradient(135deg, var(--c), var(--c2));
}
.app-logo-chip {
  display: inline-flex; align-items: center;
  height: 52px; padding: 0 14px;
  background: #fff; border-radius: 12px;
  box-shadow: 0 2px 10px -4px rgba(0,0,0,.5);
}
.app-logo-chip img { height: 40px; width: auto; display: block; }
.app-status {
  font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--c2); padding: .3rem .7rem; border-radius: 99px;
  border: 1px solid color-mix(in srgb, var(--c2) 40%, transparent);
  background: color-mix(in srgb, var(--c2) 10%, transparent);
}
.app-card h3 { font-size: 1.6rem; margin-bottom: .4rem; }
.app-tagline { color: var(--fg-2); font-weight: 600; margin-bottom: .8rem; }
.app-desc { color: var(--fg-3); font-size: .96rem; flex: 1; }
.app-card-foot {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 1.6rem; padding-top: 1.2rem; border-top: 1px solid var(--border);
}
.app-cat { font-size: .82rem; color: var(--fg-4); }
.app-launch { font-weight: 600; color: var(--c2); display: inline-flex; gap: .4rem; align-items: center; }
.app-card:hover .arrow { transform: translateX(4px); }
.arrow { transition: transform var(--t); }

/* ───────── Contact ───────── */
.contact { max-width: var(--maxw); margin: 0 auto; padding: 3rem 2rem 6rem; }
.contact-card {
  text-align: center; padding: 4rem 2rem; border-radius: var(--r-xl);
  background:
    radial-gradient(70% 120% at 50% 0%, rgba(124,140,248,.14), transparent 60%),
    var(--surface-1);
  border: 1px solid var(--border);
}
.contact-card h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); margin: .6rem 0 .8rem; }
.contact-card p { color: var(--fg-3); margin-bottom: 1.8rem; }

/* ───────── Footer ───────── */
.footer { border-top: 1px solid var(--border); background: var(--bg-2); }
.footer-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 3rem 2rem;
  display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap;
}
.footer-brand p { color: var(--fg-4); font-size: .9rem; margin-top: .6rem; }
.footer-links { display: flex; gap: 4rem; }
.footer-links h4 { color: var(--fg-2); font-size: .9rem; margin-bottom: .8rem; font-family: var(--font-sans); }
.footer-links a { display: block; color: var(--fg-4); font-size: .92rem; padding: .25rem 0; transition: color var(--t); }
.footer-links a:hover { color: var(--teal); }

/* ───────── Responsive ───────── */
@media (max-width: 800px) {
  .nav-links { gap: 1rem; }
  .nav-links a:not(.btn) { display: none; }
  .footer-inner { flex-direction: column; }
  .footer-links { gap: 2.5rem; }
}