/* =========================================================
   cloudnetz – Multistreaming
   Streaming-Flow und animierte Signalwege
   Aus style-v38.css modularisiert.
   ========================================================= */

/* =========================================================
   Multistreaming Flow
   ========================================================= */
.stream-flow-section {
  position: relative;
}

.stream-flow-title {
  max-width: 760px;
}

.stream-flow {
  display: grid;
  grid-template-columns: minmax(180px, .9fr) minmax(80px, .45fr) minmax(220px, 1.05fr) minmax(120px, .65fr) minmax(230px, 1.1fr);
  align-items: center;
  gap: 18px;
  margin-top: 36px;
  padding: 34px;
  border: 1px solid var(--border);
  border-radius: 28px;
  background:
    radial-gradient(circle at 48% 50%, var(--accent-soft), transparent 19rem),
    linear-gradient(180deg, var(--surface), var(--surface-2));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.stream-flow-node {
  position: relative;
  z-index: 2;
  display: grid;
  justify-items: center;
  gap: 7px;
  min-height: 210px;
  padding: 24px 18px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
}

.stream-flow-node strong,
.stream-flow-target strong {
  color: var(--text);
}

.stream-flow-node > span:last-child,
.stream-flow-target span:last-child {
  color: var(--muted);
  font-size: .84rem;
}

.stream-flow-kicker {
  color: var(--accent);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.stream-flow-icon,
.stream-flow-cloudmark {
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  margin: 9px 0;
  border-radius: 21px;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--border));
  box-shadow: 0 0 28px color-mix(in srgb, var(--accent) 13%, transparent);
  font-weight: 900;
}

.stream-flow-cloud {
  border-color: color-mix(in srgb, var(--accent) 44%, var(--border));
  box-shadow:
    0 18px 50px rgba(0,0,0,.12),
    0 0 44px color-mix(in srgb, var(--accent) 10%, transparent);
}

.stream-flow-cloudmark {
  width: 82px;
  border-radius: 26px;
  color: #00131d;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.stream-flow-cloudmark span {
  font-size: 1rem;
  letter-spacing: .04em;
}

.stream-flow-connector,
.stream-flow-branches {
  position: relative;
  min-height: 210px;
}

.stream-flow-line {
  position: absolute;
  display: block;
  background: color-mix(in srgb, var(--accent) 42%, var(--border));
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 18%, transparent);
}

.stream-flow-connector .stream-flow-line {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
}

.stream-flow-pulse {
  position: absolute;
  z-index: 3;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 16px var(--accent);
}

.stream-flow-connector .stream-flow-pulse {
  top: calc(50% - 4px);
  left: 0;
  animation: streamPulseIn 2.4s linear infinite;
}

.stream-flow-branches .stream-flow-line-main {
  left: 0;
  width: 50%;
  top: 50%;
  height: 1px;
}

.stream-flow-branches .stream-flow-line-mid {
  left: 50%;
  right: 0;
  top: 50%;
  height: 1px;
}

.stream-flow-branches .stream-flow-line-top,
.stream-flow-branches .stream-flow-line-bottom {
  left: 50%;
  width: 1px;
  height: 34%;
}

.stream-flow-branches .stream-flow-line-top {
  top: 16%;
}

.stream-flow-branches .stream-flow-line-bottom {
  top: 50%;
}

.stream-flow-pulse-a,
.stream-flow-pulse-b,
.stream-flow-pulse-c {
  left: 50%;
}

.stream-flow-pulse-a {
  top: 16%;
  animation: streamPulseBranchTop 3s ease-in-out infinite;
}

.stream-flow-pulse-b {
  top: calc(50% - 4px);
  animation: streamPulseBranchMid 3s ease-in-out .45s infinite;
}

.stream-flow-pulse-c {
  top: 80%;
  animation: streamPulseBranchBottom 3s ease-in-out .9s infinite;
}

.stream-flow-targets {
  display: grid;
  gap: 12px;
}

.stream-flow-target {
  display: flex;
  align-items: center;
  gap: 13px;
  min-height: 58px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
}

.stream-flow-target > div {
  display: grid;
  gap: 1px;
}

.stream-flow-target-dot {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 15px color-mix(in srgb, var(--accent) 25%, transparent);
}

.stream-flow-note {
  margin-top: 18px;
  padding: 16px 18px;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  background: var(--accent-soft);
  border-radius: 0 14px 14px 0;
  font-size: .88rem;
}

.stream-flow-note strong {
  color: var(--text);
}

@keyframes streamPulseIn {
  0%   { left: 0; opacity: 0; }
  12%  { opacity: 1; }
  88%  { opacity: 1; }
  100% { left: calc(100% - 8px); opacity: 0; }
}

@keyframes streamPulseBranchTop {
  0%   { transform: translate(0, 72px); opacity: 0; }
  18%  { opacity: 1; }
  52%  { transform: translate(0, 0); opacity: 1; }
  100% { transform: translate(58px, 0); opacity: 0; }
}

@keyframes streamPulseBranchMid {
  0%   { transform: translateX(-52px); opacity: 0; }
  20%  { opacity: 1; }
  100% { transform: translateX(58px); opacity: 0; }
}

@keyframes streamPulseBranchBottom {
  0%   { transform: translate(0, -64px); opacity: 0; }
  18%  { opacity: 1; }
  52%  { transform: translate(0, 0); opacity: 1; }
  100% { transform: translate(58px, 0); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .stream-flow-pulse {
    animation: none !important;
    opacity: .75;
  }
}

@media (max-width: 980px) {
  .stream-flow {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 24px;
  }

  .stream-flow-node {
    min-height: 0;
  }

  .stream-flow-connector,
  .stream-flow-branches {
    min-height: 64px;
  }

  .stream-flow-connector .stream-flow-line {
    left: 50%;
    right: auto;
    top: 0;
    bottom: 0;
    width: 1px;
    height: auto;
  }

  .stream-flow-connector .stream-flow-pulse {
    left: calc(50% - 4px);
    top: 0;
    animation: streamPulseDown 2.2s linear infinite;
  }

  .stream-flow-branches .stream-flow-line-main,
  .stream-flow-branches .stream-flow-line-mid,
  .stream-flow-branches .stream-flow-line-top,
  .stream-flow-branches .stream-flow-line-bottom {
    display: none;
  }

  .stream-flow-branches::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: color-mix(in srgb, var(--accent) 42%, var(--border));
  }

  .stream-flow-pulse-a,
  .stream-flow-pulse-b,
  .stream-flow-pulse-c {
    display: none;
  }

  .stream-flow-targets {
    grid-template-columns: 1fr;
  }
}

@keyframes streamPulseDown {
  0%   { top: 0; opacity: 0; }
  12%  { opacity: 1; }
  88%  { opacity: 1; }
  100% { top: calc(100% - 8px); opacity: 0; }
}