/* ============================================================
   RUDRION TECH SOLUTIONS — why-choose.css
   Depends on: global.css (variables, .btn base, auroraFloat keyframe,
   .reveal-up/.reveal-fade, .section-eyebrow/title/lead)
   ============================================================ */

.why-choose {
  position: relative;
  width: 100%;
  padding-block: 140px 160px;
  padding-inline: clamp(40px, 6vw, 120px);
  overflow: hidden;
  z-index: 2;
}
.why-choose__bg { position: absolute; inset: 0; z-index: -1; }
.why-choose__particles { position: absolute; inset: 0; width: 100%; height: 100%; }
.why-choose__orb {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.38;
  animation: auroraFloat 17s ease-in-out infinite;
}
.why-choose__orb--1 { width: 420px; height: 420px; background: radial-gradient(circle, var(--c-rose-gold) 0%, transparent 70%); top: -8%; right: -10%; }
.why-choose__orb--2 { width: 400px; height: 400px; background: radial-gradient(circle, var(--c-copper) 0%, transparent 70%); bottom: -14%; left: -10%; animation-delay: -8s; }

.why-choose__header { text-align: center; max-width: 640px; margin: 0 auto 64px; }
.why-choose__header .section-eyebrow { justify-content: center; }

.why-choose__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}

/* ---- why-card ---- */
.why-card {
  position: relative;
  padding: 34px 28px;
  border-radius: var(--radius-m);
  background: var(--c-glass);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  border: 1px solid var(--c-line);
  overflow: hidden;
  transform-style: preserve-3d;
  will-change: transform;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast);
}
.why-card:hover {
  box-shadow: 0 24px 60px rgba(0,0,0,0.45), 0 0 30px rgba(217,155,110,0.12);
}

.why-card__border {
  position: absolute; inset: 0; border-radius: inherit; padding: 1px; opacity: 0;
  background: conic-gradient(from var(--why-angle, 0deg), var(--c-copper), var(--c-rose-gold), var(--c-metal-hi), var(--c-copper));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  transition: opacity var(--dur-fast);
  animation: whyRotateBorder 5s linear infinite;
  pointer-events: none;
}
@keyframes whyRotateBorder { to { --why-angle: 360deg; } }
@property --why-angle { syntax: '<angle>'; initial-value: 0deg; inherits: false; }
.why-card:hover .why-card__border { opacity: 1; }

.why-card__glow {
  position: absolute; inset: 0; border-radius: inherit; opacity: 0;
  background: radial-gradient(circle at var(--why-mx, 50%) var(--why-my, 50%), rgba(217,155,110,0.16), transparent 60%);
  transition: opacity var(--dur-fast);
  pointer-events: none;
}
.why-card:hover .why-card__glow { opacity: 1; }

.why-card::before {
  content: "";
  position: absolute; top: 0; left: -60%; width: 40%; height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.08), transparent);
  transform: skewX(-20deg);
  transition: left 0.85s var(--ease-out);
  pointer-events: none;
}
.why-card:hover::before { left: 130%; }

.why-card__icon {
  width: 56px; height: 56px; border-radius: 14px; margin-bottom: 24px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(145deg, rgba(217,155,110,0.14), rgba(217,155,110,0.02));
  border: 1px solid var(--c-line);
  position: relative; z-index: 2;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast);
}
.why-card:hover .why-card__icon {
  transform: translateY(-3px);
  box-shadow: 0 0 22px rgba(217,155,110,0.3);
}
.why-card__icon svg {
  width: 28px; height: 28px; fill: none; stroke: var(--c-copper-light);
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}

.why-card__title {
  font-family: var(--font-display); font-size: 1.4rem; font-weight: 600;
  margin-bottom: 12px; position: relative; z-index: 2; color: var(--c-text-1);
}
.why-card__desc {
  color: var(--c-text-2); font-size: 0.92rem; line-height: 1.65;
  position: relative; z-index: 2;
}

/* ---- responsive ---- */
@media (max-width: 1400px) {
  .why-choose { padding-inline: 60px; }
}
@media (max-width: 1080px) {
  .why-choose { padding-inline: 40px; }
  .why-choose__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .why-choose { padding-block: 100px 110px; padding-inline: 20px; }
  .why-choose__grid { grid-template-columns: 1fr; }
  .why-card { padding: 28px 22px; }
}