/* ══════════════════════════════════════════
   ВГТ · ВОЛС — vols.css
   ══════════════════════════════════════════ */

/* ── Hero ── */
.vols-hero {
  background: #050c18;
  padding: var(--space-20) 0 var(--space-24);
  position: relative;
  overflow: hidden;
}

/* Animated fiber optic beams */
.vols-hero__fiber {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.vols-fiber {
  position: absolute;
  height: 1px;
  border-radius: var(--radius-full);
  opacity: 0;
}
.vols-fiber--1 {
  top: 25%; left: -10%; width: 60%;
  background: linear-gradient(90deg, transparent, rgba(23,233,183,0.6), rgba(10,108,255,0.4), transparent);
  animation: vols-beam 5s ease-in-out infinite;
  animation-delay: 0s;
}
.vols-fiber--2 {
  top: 55%; left: 20%; width: 70%;
  background: linear-gradient(90deg, transparent, rgba(10,108,255,0.5), rgba(23,233,183,0.3), transparent);
  animation: vols-beam 6s ease-in-out infinite;
  animation-delay: 1.5s;
}
.vols-fiber--3 {
  top: 40%; left: -5%; width: 50%;
  background: linear-gradient(90deg, transparent, rgba(124,58,237,0.4), rgba(10,108,255,0.4), transparent);
  animation: vols-beam 7s ease-in-out infinite;
  animation-delay: 3s;
}
.vols-fiber--4 {
  top: 70%; left: 30%; width: 65%;
  background: linear-gradient(90deg, transparent, rgba(10,108,255,0.3), rgba(23,233,183,0.5), transparent);
  animation: vols-beam 4.5s ease-in-out infinite;
  animation-delay: 0.7s;
}
@keyframes vols-beam {
  0%   { opacity: 0; transform: translateX(-20px); }
  20%  { opacity: 1; }
  80%  { opacity: 1; }
  100% { opacity: 0; transform: translateX(40px); }
}

/* Video background */
.vols-hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 0;
  pointer-events: none;
}

/* Radial glow overlay */
.vols-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 60% at 75% 45%, rgba(10,108,255,0.1) 0%, transparent 60%),
    radial-gradient(ellipse 35% 40% at 15% 60%, rgba(23,233,183,0.07) 0%, transparent 60%);
  z-index: 1;
}

.vols-hero__layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-14);
  align-items: center;
  position: relative;
  z-index: 2;
}
@media (max-width: 900px) {
  .vols-hero__layout { grid-template-columns: 1fr; }
  .vols-hero__visual { order: -1; }
}

.vols-hero__eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(23,233,183,0.1); border: 1px solid rgba(23,233,183,0.25);
  color: #6ee7b7; font-size: var(--font-size-sm); font-weight: 600;
  letter-spacing: 0.05em; text-transform: uppercase;
  padding: 6px 14px; border-radius: var(--radius-full);
  margin-bottom: var(--space-5);
}
.vols-hero__title {
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: var(--font-weight-bold);
  color: var(--color-white); line-height: 1.15;
  margin-bottom: var(--space-5);
}
.vols-hero__title span {
  color: #0A6CFF;
}
.vols-hero__desc { font-size: var(--font-size-lg); color: rgba(255,255,255,0.7); line-height: 1.7; margin-bottom: var(--space-8); }
.vols-hero__actions { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-bottom: var(--space-8); }
@media (max-width: 640px) { .vols-hero__stats { grid-template-columns: repeat(2, 1fr); } }

/* Signal diagram visual */
.vols-signal-diagram {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-2xl); padding: var(--space-6); backdrop-filter: blur(10px);
}
.vols-signal-diagram__title {
  font-size: var(--font-size-xs); text-transform: uppercase; letter-spacing: 0.08em;
  color: rgba(255,255,255,0.4); font-weight: 600; margin-bottom: var(--space-5);
}
.vols-method-list { display: flex; flex-direction: column; gap: var(--space-2); }
.vols-method {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.07);
  background: rgba(255,255,255,0.03);
  transition: all 0.25s ease; cursor: default;
}
.vols-method:hover { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.15); transform: translateX(4px); }
.vols-method__icon {
  width: 36px; height: 36px; border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.vols-method__icon--blue   { background: rgba(10,108,255,0.15); color: #7ec8f7; }
.vols-method__icon--green  { background: rgba(23,233,183,0.12); color: #6ee7b7; }
.vols-method__icon--purple { background: rgba(124,58,237,0.12); color: #c4b5fd; }
.vols-method__icon--orange { background: rgba(245,158,11,0.1); color: #fcd34d; }
.vols-method__icon--teal   { background: rgba(20,184,166,0.12); color: #5eead4; }
.vols-method__info { display: flex; flex-direction: column; }
.vols-method__name { font-size: var(--font-size-sm); font-weight: 600; color: rgba(255,255,255,0.9); }
.vols-method__note { font-size: var(--font-size-xs); color: rgba(255,255,255,0.4); }

/* ── Timeline ── */
.vols-timeline {
  position: relative;
  margin-top: var(--space-16);
}
.vols-timeline__line { display: none; }
.vols-timeline::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-brand-500) 0%, rgba(23,233,183,0.35) 100%);
  z-index: 0;
}

.vols-tl-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  margin-bottom: var(--space-5);
}
.vols-tl-item:last-child { margin-bottom: 0; }

.vols-tl-item__connector {
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.vols-tl-item__num {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--color-brand-500);
  color: white;
  font-size: var(--font-size-xs); font-weight: 700;
  box-shadow: 0 0 0 4px rgba(10,108,255,0.15);
}

.vols-tl-item__card {
  background: var(--color-white); border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-2xl); padding: var(--space-5) var(--space-6);
  display: flex; align-items: flex-start; gap: var(--space-4);
  flex: 1;
  transition: box-shadow 0.25s ease;
}
.vols-tl-item__card:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.08); }

.vols-tl-item__icon {
  width: 44px; height: 44px; border-radius: var(--radius-lg);
  background: rgba(10,108,255,0.08); color: var(--color-brand-500);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.vols-tl-item__body { flex: 1; }
.vols-tl-item__title {
  font-size: var(--font-size-lg); font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900); margin-bottom: var(--space-2);
}
.vols-tl-item__desc { font-size: var(--font-size-base); color: var(--color-gray-500); line-height: 1.65; }

@media (max-width: 640px) {
  .vols-tl-item__num { width: 32px; height: 32px; font-size: 10px; }
  .vols-timeline::before { left: 15px; }
}

/* ── Services Section ── */
.vols-services-section { background: var(--color-gray-50); }
.vols-feat-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5); margin-top: var(--space-12);
}
@media (max-width: 1024px) { .vols-feat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .vols-feat-grid { grid-template-columns: 1fr; } }
.vols-feat-card {
  background: var(--color-white); border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-2xl); padding: var(--space-6);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.vols-feat-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.vols-feat-card__icon {
  width: 48px; height: 48px; border-radius: var(--radius-xl);
  background: rgba(10,108,255,0.08); color: var(--color-brand-500);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-4);
}
.vols-feat-card__icon--accent { background: rgba(23,233,183,0.1); color: #059669; }
.vols-feat-card__title { font-size: var(--font-size-base); font-weight: var(--font-weight-semibold); color: var(--color-gray-900); margin-bottom: var(--space-2); }
.vols-feat-card__desc { font-size: var(--font-size-sm); color: var(--color-gray-500); line-height: 1.65; }

/* ── Dark Fiber CTA ── */
#dark-fiber {
  background: linear-gradient(135deg, #050c18 0%, #0a1628 50%, #001a40 100%);
}
.vols-dark-fiber {
  background: transparent;
  border-radius: 0;
  padding: var(--space-12) var(--space-10);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-14);
  align-items: center;
  position: relative;
  overflow: hidden;
}
@media (max-width: 900px) { .vols-dark-fiber { grid-template-columns: 1fr; padding: var(--space-8); } }

.vols-dark-fiber__eyebrow {
  display: inline-block;
  background: rgba(23,233,183,0.12); border: 1px solid rgba(23,233,183,0.25);
  color: #6ee7b7; font-size: var(--font-size-xs); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 4px 12px; border-radius: var(--radius-full); margin-bottom: var(--space-4);
}
.vols-dark-fiber__title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: var(--font-weight-bold); color: var(--color-white); line-height: 1.2;
  margin-bottom: var(--space-4);
}
.vols-dark-fiber__desc { font-size: var(--font-size-base); color: rgba(255,255,255,0.65); line-height: 1.7; margin-bottom: var(--space-6); }
.vols-dark-fiber__bullets { display: flex; flex-direction: column; gap: var(--space-3); margin-bottom: var(--space-8); }
.vols-df-bullet {
  display: flex; align-items: center; gap: var(--space-3);
  font-size: var(--font-size-sm); color: rgba(255,255,255,0.8);
}
.vols-df-bullet svg { color: #34d399; flex-shrink: 0; }

/* Tech cards */
.vols-tech-cards {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}
.vols-tech-card {
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl); padding: var(--space-4);
  text-align: center; cursor: default; transition: all 0.25s ease;
}
.vols-tech-card:hover { background: rgba(255,255,255,0.09); }
.vols-tech-card--sm { }
.vols-tech-card--lg { grid-column: 1 / -1; }
.vols-tech-card--featured {
  background: rgba(10,108,255,0.15); border-color: rgba(10,108,255,0.4);
  box-shadow: 0 0 20px rgba(10,108,255,0.1);
}
.vols-tech-card__label { font-size: var(--font-size-xs); color: rgba(255,255,255,0.45); margin-bottom: var(--space-1); }
.vols-tech-card__val { font-size: var(--font-size-base); font-weight: 700; color: var(--color-white); }
.vols-tech-card__val--big { font-size: clamp(1.3rem, 2.5vw, 1.75rem); color: #7ec8f7; }
.vols-tech-card__sub { font-size: var(--font-size-xs); color: rgba(255,255,255,0.4); margin-top: 2px; }
.vols-tech-card__icon { color: #7ec8f7; margin-bottom: var(--space-2); display: flex; justify-content: center; }

/* ── Client Grid ── */
.vols-clients-section { background: var(--color-gray-50); }
.vols-client-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5); margin-top: var(--space-12);
}
@media (max-width: 1024px) { .vols-client-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .vols-client-grid { grid-template-columns: 1fr; } }
.vols-client-card {
  background: var(--color-white); border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-2xl); padding: var(--space-6);
  transition: box-shadow 0.25s ease;
}
.vols-client-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.07); }
.vols-client-card__icon { font-size: 2rem; margin-bottom: var(--space-3); display: block; }
.vols-client-card__title { font-size: var(--font-size-base); font-weight: var(--font-weight-semibold); color: var(--color-gray-900); margin-bottom: var(--space-2); }
.vols-client-card__desc { font-size: var(--font-size-sm); color: var(--color-gray-500); line-height: 1.65; }