/* ─── Kzap Design System: Animations & Micro-interactions ─── */

:root {
  --wa-green: #25D366;
  --wa-teal: #128C7E;
  --wa-dark-teal: #075E54;
  --wa-glow: rgba(37, 211, 102, 0.35);
  --wa-glow-subtle: rgba(37, 211, 102, 0.15);
  --anim-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --anim-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 180ms;
  --duration-norm: 260ms;
  --duration-slow: 400ms;
}

/* 1. Micro-interações: Botões e Inputs */
.kzap-btn-interactive {
  position: relative;
  overflow: hidden;
  transition: transform var(--duration-fast) var(--anim-spring),
              box-shadow var(--duration-fast) ease,
              background var(--duration-fast) ease,
              filter var(--duration-fast) ease;
  will-change: transform;
}

.kzap-btn-interactive:hover {
  transform: translateY(-2px) scale(1.015);
  box-shadow: 0 10px 24px -4px var(--wa-glow);
  filter: brightness(1.05);
}

.kzap-btn-interactive:active {
  transform: translateY(1px) scale(0.975);
  box-shadow: 0 4px 10px -2px var(--wa-glow);
}

.kzap-btn-interactive::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  transform: translate(-50%, -50%);
  opacity: 0;
  pointer-events: none;
}

.kzap-btn-interactive:active::after {
  width: 220%;
  height: 220%;
  opacity: 1;
  transition: width 0.35s ease-out, height 0.35s ease-out, opacity 0.45s ease-out;
}

.kzap-input-interactive {
  transition: border-color var(--duration-norm) ease,
              box-shadow var(--duration-norm) ease,
              transform var(--duration-fast) var(--anim-ease-out),
              background var(--duration-norm) ease;
}

.kzap-input-interactive:focus {
  border-color: var(--wa-green) !important;
  box-shadow: 0 0 0 3px var(--wa-glow-subtle), 0 8px 16px -4px rgba(0, 0, 0, 0.4);
  transform: translateY(-1px);
  outline: none;
}

/* 2. Typing Effect & Headline Cursor */
.kzap-typing-cursor {
  display: inline-block;
  margin-left: 2px;
  animation: kzapBlink 0.9s infinite step-start;
  color: var(--wa-green);
  font-weight: 300;
}

@keyframes kzapBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* 3. Orbs Flutuantes & Ambientes Vivos */
.kzap-orb-container {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.kzap-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.38;
  mix-blend-mode: screen;
  will-change: transform;
}

.kzap-orb-green {
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(37, 211, 102, 0.85) 0%, rgba(18, 140, 126, 0.3) 70%, transparent 100%);
  animation: kzapOrbFloat1 14s ease-in-out infinite alternate;
}

.kzap-orb-cyan {
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.75) 0%, rgba(37, 99, 235, 0.25) 70%, transparent 100%);
  animation: kzapOrbFloat2 18s ease-in-out infinite alternate;
}

@keyframes kzapOrbFloat1 {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(60px, -45px, 0) scale(1.12); }
  100% { transform: translate3d(-40px, 35px, 0) scale(0.94); }
}

@keyframes kzapOrbFloat2 {
  0% { transform: translate3d(0, 0, 0) scale(1.05); }
  50% { transform: translate3d(-70px, 50px, 0) scale(0.92); }
  100% { transform: translate3d(50px, -60px, 0) scale(1.1); }
}

/* 4. Entrada dos Cards e Etapas (Fade-Up com Stagger) */
.kzap-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s var(--anim-ease-out),
              transform 0.65s var(--anim-ease-out);
  will-change: opacity, transform;
}

.kzap-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.kzap-stagger-1 { transition-delay: 80ms; }
.kzap-stagger-2 { transition-delay: 160ms; }
.kzap-stagger-3 { transition-delay: 240ms; }
.kzap-stagger-4 { transition-delay: 320ms; }
.kzap-stagger-5 { transition-delay: 400ms; }

/* 5. Feedback Interativo no Gerador de Links */
.kzap-pulse-success {
  animation: kzapSuccessBadge 0.5s var(--anim-spring) forwards;
}

@keyframes kzapSuccessBadge {
  0% { transform: scale(0.7); opacity: 0; }
  60% { transform: scale(1.14); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

.kzap-copy-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #111827;
  border: 1px solid var(--wa-green);
  color: #fff;
  padding: 12px 20px;
  border-radius: 9999px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 20px var(--wa-glow);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  z-index: 9999;
  opacity: 0;
  transform: translateY(16px) scale(0.95);
  transition: opacity 0.25s var(--anim-ease-out), transform 0.25s var(--anim-spring);
  pointer-events: none;
}

.kzap-copy-toast.show {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}