/* css/components.css — Buttons, glassmorphism cards, animations */

/* Variant: 04-portal-hub-2 — Glassmorphism Focus, portal/grid motif */

/* ─── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-glass);
  text-decoration: none;
  min-height: 44px;
  min-width: 44px;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-neon-cyan) 0%, #00b8d4 100%);
  color: var(--color-deep-navy);
  box-shadow:
    0 4px 20px rgb(0, 229, 255, 0.3),
    inset 0 1px 0 rgb(255, 255, 255, 0.2);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgb(255, 255, 255, 0.2) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #00e5ff 0%, var(--color-neon-cyan) 100%);
  box-shadow:
    0 4px 30px rgb(0, 229, 255, 0.5),
    0 0 60px rgb(0, 229, 255, 0.3),
    inset 0 1px 0 rgb(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: rgb(0, 229, 255, 0.08);
  backdrop-filter: blur(10px);
  color: var(--color-accent);
  border: 1px solid rgb(0, 229, 255, 0.3);
  box-shadow: inset 0 1px 0 rgb(255, 255, 255, 0.05);
}

.btn-secondary:hover {
  background: rgb(0, 229, 255, 0.15);
  border-color: var(--color-accent);
  box-shadow:
    0 0 20px rgb(0, 229, 255, 0.2),
    inset 0 1px 0 rgb(255, 255, 255, 0.1);
}

.btn-small {
  font-size: 0.8125rem;
  padding: var(--space-2) var(--space-4);
  min-height: 36px;
}

.btn-large {
  font-size: 1.0625rem;
  padding: var(--space-4) var(--space-8);
  min-height: 52px;
}

/* ─── Glassmorphism card ─────────────────────────────────────────────────────── */
.glass-card {
  background: var(--color-bg-glass);
  backdrop-filter: blur(20px) saturate(150%);
  border: 1px solid rgb(0, 229, 255, 0.1);
  border-radius: var(--radius-xl);
  transition: all var(--transition-glass);
  box-shadow: var(--shadow-glass);
}

.glass-card:hover {
  border-color: rgb(0, 229, 255, 0.25);
  box-shadow:
    var(--shadow-glass),
    0 0 40px rgb(0, 229, 255, 0.1);
}

/* ─── Portal grid background element ─────────────────────────────────────── */
.portal-grid {
  position: relative;
  width: 240px;
  height: 240px;
  margin: 0 auto;
}

.portal-grid::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgb(0, 229, 255, 0.3) 1px, transparent 1px),
    linear-gradient(rgb(0, 229, 255, 0.3) 1px, transparent 1px);
  background-size: 30px 30px;
  border-radius: 50%;
  mask-image: radial-gradient(circle at center, black 40%, transparent 70%);
  animation: grid-pulse 3s ease-in-out infinite;
}

.portal-grid::after {
  content: '';
  position: absolute;
  inset: 20px;
  background:
    linear-gradient(90deg, rgb(0, 229, 255, 0.2) 1px, transparent 1px),
    linear-gradient(rgb(0, 229, 255, 0.2) 1px, transparent 1px);
  background-size: 20px 20px;
  border-radius: 50%;
  mask-image: radial-gradient(circle at center, black 30%, transparent 60%);
  animation: grid-pulse 2s ease-in-out infinite reverse;
}

.portal-grid-center {
  position: absolute;
  inset: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle, rgb(0, 229, 255, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  animation: portal-pulse 2.5s ease-in-out infinite;
}

.portal-grid-center svg {
  width: 56px;
  height: 56px;
  color: var(--color-accent);
  filter: drop-shadow(0 0 20px rgb(0, 229, 255, 0.6));
}

/* ─── Animations ─────────────────────────────────────────────────────────────── */
@keyframes portal-pulse {
  0%,
  100% {
    opacity: 0.7;
    transform: scale(1);
    box-shadow:
      0 0 30px rgb(0, 229, 255, 0.3),
      inset 0 0 30px rgb(0, 229, 255, 0.1);
  }

  50% {
    opacity: 1;
    transform: scale(1.05);
    box-shadow:
      0 0 60px rgb(0, 229, 255, 0.5),
      inset 0 0 40px rgb(0, 229, 255, 0.2);
  }
}

@keyframes grid-pulse {
  0%,
  100% {
    opacity: 0.5;
    transform: scale(1);
  }

  50% {
    opacity: 0.8;
    transform: scale(1.02);
  }
}

@keyframes neon-glow {
  0%,
  19%,
  21%,
  23%,
  25%,
  54%,
  56%,
  100% {
    text-shadow:
      0 0 10px var(--color-accent),
      0 0 20px var(--color-accent),
      0 0 40px var(--color-accent);
  }

  20%,
  24%,
  55% {
    text-shadow: none;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

@keyframes glow-ring {
  0%,
  100% {
    box-shadow:
      0 0 20px rgb(0, 229, 255, 0.3),
      inset 0 0 20px rgb(0, 229, 255, 0.1);
  }

  50% {
    box-shadow:
      0 0 40px rgb(0, 229, 255, 0.5),
      inset 0 0 30px rgb(0, 229, 255, 0.2);
  }
}

/* ─── Hero with portal grid ──────────────────────────────────────────────────── */
.hero .portal-grid {
  margin-bottom: var(--space-10);
}

/* ─── Neon text ─────────────────────────────────────────────────────────────── */
.neon-text {
  animation: neon-glow 4s ease-in-out infinite;
}

/* ─── Neon border ──────────────────────────────────────────────────────────── */
.neon-border {
  position: relative;
}

.neon-border::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--color-accent), rgb(0, 229, 255, 0.5));
  z-index: -1;
  opacity: 0.5;
  filter: blur(6px);
  transition: opacity var(--transition-base);
}

.neon-border:hover::before {
  opacity: 1;
}

/* ─── Hover glow effect ──────────────────────────────────────────────────────── */
.hover-glow {
  transition:
    box-shadow var(--transition-base),
    transform var(--transition-base);
}

.hover-glow:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* ─── Animated gradient background accent ─────────────────────────────────── */
@keyframes gradient-shift {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

.gradient-accent {
  background: linear-gradient(
    -45deg,
    rgb(0, 229, 255, 0.08),
    rgb(0, 229, 255, 0.03),
    rgb(0, 229, 255, 0.06)
  );
  background-size: 200% 200%;
  animation: gradient-shift 10s ease infinite;
}

/* ─── Link underline animation ─────────────────────────────────────────────── */
@keyframes link-underline {
  from {
    transform: scaleX(0);
    transform-origin: left;
  }

  to {
    transform: scaleX(1);
    transform-origin: left;
  }
}

.animated-link {
  position: relative;
}

.animated-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
  box-shadow: 0 0 10px var(--color-accent);
}

.animated-link:hover::after {
  transform: scaleX(1);
}

/* ─── Stagger animation helper ─────────────────────────────────────────────── */
.stagger-fade-in > * {
  opacity: 0;
  transform: translateY(24px);
  animation: stagger-fade 0.5s ease forwards;
}

@keyframes stagger-fade {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.stagger-fade-in > *:nth-child(1) {
  animation-delay: 0.1s;
}

.stagger-fade-in > *:nth-child(2) {
  animation-delay: 0.15s;
}

.stagger-fade-in > *:nth-child(3) {
  animation-delay: 0.2s;
}

.stagger-fade-in > *:nth-child(4) {
  animation-delay: 0.25s;
}

.stagger-fade-in > *:nth-child(5) {
  animation-delay: 0.3s;
}

.stagger-fade-in > *:nth-child(6) {
  animation-delay: 0.35s;
}

.stagger-fade-in > *:nth-child(7) {
  animation-delay: 0.4s;
}

.stagger-fade-in > *:nth-child(8) {
  animation-delay: 0.45s;
}

/* ─── Glass shimmer effect ──────────────────────────────────────────────────── */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }

  100% {
    background-position: 200% 0;
  }
}

.glass-shimmer {
  position: relative;
  overflow: hidden;
}

.glass-shimmer::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgb(255, 255, 255, 0.05) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 3s ease-in-out infinite;
  pointer-events: none;
}

/* ─── Layered depth panels ─────────────────────────────────────────────────── */
.depth-layer {
  position: relative;
}

.depth-layer::before {
  content: '';
  position: absolute;
  inset: -8px;
  background: inherit;
  border-radius: inherit;
  filter: blur(20px);
  opacity: 0.4;
  z-index: -1;
  transform: translateZ(-20px);
}

/* ─── Reduced motion overrides ─────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .portal-grid::before,
  .portal-grid::after,
  .portal-grid-center,
  .neon-text,
  .gradient-accent,
  .stagger-fade-in > *,
  .glass-shimmer::after {
    animation: none !important;
  }

  .stagger-fade-in > * {
    opacity: 1;
    transform: none;
  }

  .glass-shimmer::after {
    display: none;
  }
}