/* =============================================================
   ARONA SOLUTIONS — Design System
   Dark, cinematic, enterprise. Built for performance.
   ============================================================= */

/* ---------- Design Tokens ---------- */
:root {
  /* Base surfaces */
  --bg: #050609;
  --bg-elev: #0a0c12;
  --bg-elev-2: #0f121a;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-2: rgba(255, 255, 255, 0.05);
  --hairline: rgba(255, 255, 255, 0.09);
  --hairline-strong: rgba(255, 255, 255, 0.16);

  /* Text */
  --text: #f4f6fb;
  --text-soft: #b4bccd;
  --text-mute: #79839a;
  --text-faint: #4c5468;

  /* Brand — electric cyan → indigo → violet */
  --cyan: #47e5ff;
  --sky: #38bdf8;
  --indigo: #6366f1;
  --violet: #a855f7;
  --accent: #57d9ff;
  --signal: #7cffb2; /* success / online */

  --grad-brand: linear-gradient(120deg, #47e5ff 0%, #6366f1 45%, #a855f7 100%);
  --grad-brand-soft: linear-gradient(120deg, rgba(71,229,255,.16), rgba(168,85,247,.16));
  --grad-text: linear-gradient(120deg, #eaf6ff 0%, #a9c7ff 50%, #d8b8ff 100%);
  --glow-cyan: 0 0 40px rgba(71, 229, 255, 0.35);
  --glow-violet: 0 0 46px rgba(168, 85, 247, 0.30);

  /* Type */
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Space Mono", ui-monospace, "SFMono-Regular", monospace;

  /* Fluid type scale */
  --step--1: clamp(0.78rem, 0.74rem + 0.2vw, 0.9rem);
  --step-0: clamp(0.95rem, 0.9rem + 0.25vw, 1.06rem);
  --step-1: clamp(1.15rem, 1.05rem + 0.5vw, 1.4rem);
  --step-2: clamp(1.5rem, 1.3rem + 1vw, 2.1rem);
  --step-3: clamp(2rem, 1.6rem + 2vw, 3.2rem);
  --step-4: clamp(2.6rem, 1.9rem + 3.4vw, 4.8rem);
  --step-5: clamp(3.2rem, 2rem + 5.6vw, 7rem);
  --step-6: clamp(3.6rem, 1.6rem + 9vw, 9.5rem);

  /* Spacing / layout */
  --maxw: 1280px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --radius: 18px;
  --radius-lg: 28px;
  --radius-sm: 12px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur: 0.6s;
}

/* ---------- Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Lenis controls smoothing; keep native fallback tame */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: var(--step-0);
  line-height: 1.6;
  overflow-x: clip;
  position: relative;
  min-height: 100vh;
}

/* Ambient background field */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60% 50% at 50% -10%, rgba(99, 102, 241, 0.18), transparent 70%),
    radial-gradient(50% 40% at 85% 20%, rgba(168, 85, 247, 0.10), transparent 70%),
    radial-gradient(40% 40% at 10% 60%, rgba(71, 229, 255, 0.08), transparent 70%),
    var(--bg);
}
/* Fine grain / noise to kill banding */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
::selection { background: rgba(71, 229, 255, 0.28); color: #fff; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.03em;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-mute);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}
.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.accent-text {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Layout primitives ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section {
  position: relative;
  padding-block: clamp(5rem, 10vw, 9rem);
}
.section-head { max-width: 760px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head h2 {
  font-size: var(--step-4);
  margin-top: 1rem;
  letter-spacing: -0.04em;
}
.section-head p {
  margin-top: 1.4rem;
  color: var(--text-soft);
  font-size: var(--step-1);
  max-width: 60ch;
}
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--hairline-strong), transparent);
  border: 0;
}

/* ---------- Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.95em 1.6em;
  border-radius: 999px;
  font-weight: 500;
  font-size: var(--step-0);
  letter-spacing: -0.01em;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), background 0.4s;
  will-change: transform;
}
.btn svg { width: 1.1em; height: 1.1em; transition: transform 0.4s var(--ease-out); }
.btn-primary {
  background: var(--grad-brand);
  color: #05060a;
  font-weight: 600;
  box-shadow: 0 10px 30px -10px rgba(71, 229, 255, 0.5), inset 0 0 0 1px rgba(255,255,255,0.2);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 45px -12px rgba(99, 102, 241, 0.7); }
.btn-primary:hover svg { transform: translateX(4px); }
.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--hairline-strong);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { background: var(--surface-2); transform: translateY(-2px); border-color: var(--cyan); }
.btn-lg { padding: 1.1em 2em; font-size: var(--step-1); }

/* ---------- Pills / chips ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.4em 0.9em;
  border-radius: 999px;
  border: 1px solid var(--hairline);
  background: var(--surface);
  font-size: var(--step--1);
  color: var(--text-soft);
  backdrop-filter: blur(8px);
}
.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 10px var(--signal);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(.7)} }

/* ---------- Glass card ---------- */
.card {
  position: relative;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.015));
  border: 1px solid var(--hairline);
  backdrop-filter: blur(14px);
  overflow: hidden;
  transition: transform 0.5s var(--ease-out), border-color 0.5s, background 0.5s;
}
.card::before {
  /* gradient sheen on hover following pointer */
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(280px circle at var(--mx, 50%) var(--my, 0%), rgba(71,229,255,0.14), transparent 60%);
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}
.card:hover { transform: translateY(-6px); border-color: var(--hairline-strong); }
.card:hover::before { opacity: 1; }

/* Animated gradient border wrapper */
.gborder {
  position: relative;
  border-radius: var(--radius);
  background: var(--bg-elev);
  isolation: isolate;
}
.gborder::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: conic-gradient(from var(--angle, 0deg), transparent 20%, var(--cyan), var(--violet), transparent 80%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.55;
  animation: spin-border 6s linear infinite;
}
@property --angle { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
@keyframes spin-border { to { --angle: 360deg; } }

/* ---------- Reveal animation (JS toggles .in) ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  will-change: transform, opacity;
}
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: 0.08s; }
[data-reveal-delay="2"] { transition-delay: 0.16s; }
[data-reveal-delay="3"] { transition-delay: 0.24s; }
[data-reveal-delay="4"] { transition-delay: 0.32s; }
[data-reveal-delay="5"] { transition-delay: 0.4s; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}