/* ============================================================
   ANIMATIONS CSS – Micro-animations & Transitions
   ============================================================ */

/* ─── Gradient animated border ─── */
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.animated-border {
  position: relative;
}
.animated-border::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--cyan), var(--purple), var(--cyan));
  background-size: 200% 200%;
  animation: gradientShift 3s ease infinite;
  z-index: -1;
}

/* ─── Glowing pulse ring ─── */
@keyframes pulseRing {
  0%   { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.6); opacity: 0; }
}

.pulse-ring {
  position: relative;
  display: inline-flex;
}

.pulse-ring::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  animation: pulseRing 1.8s ease-out infinite;
}

/* ─── Typewriter effect ─── */
.typewriter {
  overflow: hidden;
  border-right: 2px solid var(--cyan);
  white-space: nowrap;
  animation: typing 3s steps(60) 0.5s both, blink 0.8s step-end infinite;
}

/* ─── Floating particles ─── */
@keyframes particleFloat {
  0%   { transform: translateY(0) rotate(0deg); opacity: 0; }
  10%  { opacity: 0.6; }
  90%  { opacity: 0.6; }
  100% { transform: translateY(-80vh) rotate(360deg); opacity: 0; }
}

.particle {
  position: absolute;
  width: 4px; height: 4px;
  background: var(--cyan);
  border-radius: 50%;
  animation: particleFloat linear infinite;
  pointer-events: none;
}

/* ─── Grid scan line animation ─── */
@keyframes scanLine {
  0%   { top: 0; opacity: 0; }
  5%   { opacity: 0.6; }
  95%  { opacity: 0.6; }
  100% { top: 100%; opacity: 0; }
}

.scan-container {
  position: relative;
  overflow: hidden;
}
.scan-container::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  animation: scanLine 3s ease-in-out infinite;
  z-index: 1;
}

/* ─── Number counter ─── */
@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.count-up { animation: countUp 0.4s ease forwards; }

/* ─── Progress bar fill ─── */
@keyframes progressFill {
  from { width: 0; }
  to   { width: var(--target-width); }
}

.progress-bar {
  height: 4px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  border-radius: var(--radius-full);
  animation: progressFill 1s ease forwards;
  box-shadow: 0 0 10px var(--cyan-glow);
}

/* ─── Card hover lift ─── */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 40px var(--cyan-glow);
}

/* ─── Shimmer loading ─── */
@keyframes shimmerLoad {
  0%   { background-position: -468px 0; }
  100% { background-position: 468px 0; }
}

.shimmer {
  background: linear-gradient(90deg, var(--bg-elevated) 25%, var(--bg-glass) 50%, var(--bg-elevated) 75%);
  background-size: 468px 100%;
  animation: shimmerLoad 1.5s ease infinite;
}

/* ─── Flip card ─── */
.flip-card {
  perspective: 1000px;
  cursor: pointer;
}

.flip-card-inner {
  position: relative;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner,
.flip-card.flipped .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.flip-card-back { transform: rotateY(180deg); }

/* ─── Matrix rain effect (canvas-driven, CSS styling) ─── */
.matrix-rain-canvas {
  opacity: 0.12;
  pointer-events: none;
}

/* ─── Neon text glow ─── */
.neon-cyan {
  color: var(--cyan);
  text-shadow: 0 0 10px rgba(6,182,212,0.8), 0 0 20px rgba(6,182,212,0.4), 0 0 40px rgba(6,182,212,0.2);
}

.neon-purple {
  color: var(--purple-light);
  text-shadow: 0 0 10px rgba(139,92,246,0.8), 0 0 20px rgba(139,92,246,0.4), 0 0 40px rgba(139,92,246,0.2);
}

/* ─── Hero grid background ─── */
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(6,182,212,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6,182,212,0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%);
}

/* ─── Flow diagram ─── */
.flow-diagram {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-wrap: wrap;
  justify-content: center;
}

.flow-box {
  padding: var(--sp-2) var(--sp-4);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
}

.flow-box-cyan { border-color: rgba(6,182,212,0.4); color: var(--cyan); background: rgba(6,182,212,0.06); }
.flow-box-purple { border-color: rgba(139,92,246,0.4); color: var(--purple-light); background: rgba(139,92,246,0.06); }
.flow-box-green { border-color: rgba(16,185,129,0.4); color: var(--green); background: rgba(16,185,129,0.06); }

.flow-arrow {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* ─── Reveal animation groups ─── */
.reveal-group .reveal:nth-child(1) { transition-delay: 0.0s; }
.reveal-group .reveal:nth-child(2) { transition-delay: 0.12s; }
.reveal-group .reveal:nth-child(3) { transition-delay: 0.24s; }
.reveal-group .reveal:nth-child(4) { transition-delay: 0.36s; }

/* ─── Timeline ─── */
.timeline {
  position: relative;
  padding-left: var(--sp-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--cyan), var(--purple));
  opacity: 0.3;
}

.timeline-item {
  position: relative;
  margin-bottom: var(--sp-8);
}

.timeline-dot {
  position: absolute;
  left: calc(var(--sp-8) * -1 + 6px);
  top: 4px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 10px var(--cyan-glow);
}

.timeline-item:nth-child(even) .timeline-dot { border-color: var(--purple); box-shadow: 0 0 10px var(--purple-glow); }

.timeline-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: var(--sp-1);
}

.timeline-title { font-size: 1rem; font-weight: 600; margin-bottom: var(--sp-2); }
.timeline-body  { font-size: 0.875rem; color: var(--text-secondary); }

/* ─── Tooltip ─── */
.tooltip-wrap { position: relative; display: inline-block; }

.tooltip-wrap .tooltip {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 0.8rem;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  backdrop-filter: blur(10px);
  transition: opacity var(--transition-fast);
  z-index: 100;
}

.tooltip-wrap:hover .tooltip {
  visibility: visible;
  opacity: 1;
}

/* ─── Security meter ─── */
.security-meter {
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  height: 8px;
  overflow: hidden;
  position: relative;
}

.security-meter-fill {
  height: 100%;
  border-radius: var(--radius-full);
  position: relative;
  overflow: hidden;
}

.security-meter-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmerLoad 2s ease infinite;
}

.security-meter-classical { background: linear-gradient(90deg, var(--cyan-dark), var(--cyan)); width: 85%; }
.security-meter-quantum   { background: linear-gradient(90deg, var(--purple-dark), var(--purple)); width: 78%; }
.security-meter-hybrid    { background: linear-gradient(90deg, var(--cyan), var(--green));  width: 95%; }

/* ─── Hex display ─── */
.hex-display {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cyan-light);
  background: #0a1628;
  border: 1px solid rgba(6,182,212,0.15);
  border-radius: var(--radius-sm);
  padding: var(--sp-2) var(--sp-3);
  word-break: break-all;
  line-height: 1.8;
  position: relative;
  overflow: hidden;
}

.hex-display::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: linear-gradient(to bottom, var(--cyan), var(--purple));
}

/* ─── Notification toast ─── */
@keyframes toastIn {
  from { transform: translateX(120%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

@keyframes toastOut {
  from { transform: translateX(0); opacity: 1; }
  to   { transform: translateX(120%); opacity: 0; }
}

.toast-container {
  position: fixed;
  bottom: var(--sp-6);
  right: var(--sp-6);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--sp-3) var(--sp-5);
  backdrop-filter: blur(20px);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  min-width: 280px;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.35s ease forwards;
}

.toast.hide { animation: toastOut 0.3s ease forwards; }
.toast-success { border-left: 3px solid var(--green); }
.toast-error   { border-left: 3px solid var(--red); }
.toast-info    { border-left: 3px solid var(--cyan); }

/* ─── Loading overlay ─── */
.loading-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(7,9,15,0.7);
  backdrop-filter: blur(4px);
  border-radius: inherit;
  z-index: 10;
}

/* ─── Glow button animation ─── */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px var(--cyan-glow); }
  50%       { box-shadow: 0 0 40px var(--cyan-glow), 0 0 60px rgba(6,182,212,0.15); }
}

.btn-glow { animation: glowPulse 2.5s ease-in-out infinite; }

/* ─── Orbit animation (decorative) ─── */
@keyframes orbit {
  from { transform: rotate(0deg) translateX(60px) rotate(0deg); }
  to   { transform: rotate(360deg) translateX(60px) rotate(-360deg); }
}

.orbit-container { position: relative; width: 140px; height: 140px; }
.orbit-center { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); }
.orbit-dot {
  position: absolute;
  top: 50%; left: 50%;
  width: 10px; height: 10px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--cyan);
  animation: orbit 3s linear infinite;
}