/* ===========================================
   HOW IT WORKS BLOCK
   Интерактивные пиксельные карточки шагов
   =========================================== */

/* Локальные переменные для цветов шагов (используют глобальные) */
.wp-block-prostovpn-how-it-works {
  /* Step 1 - Cyan/Teal */
  --step-1-light: var(--color-cyan-light);
  --step-1-base: var(--color-cyan-dark);
  --step-1-mid: #0e7490;
  --step-1-dark: #155e75;
  --step-1-border: var(--neon-cyan-dark);
  --step-1-glow: rgba(34, 211, 238, 0.6);
  --step-1-glow-icon: rgba(34, 211, 238, 0.8);
  
  /* Step 2 - Yellow/Gold */
  --step-2-light: var(--color-yellow);
  --step-2-base: var(--color-yellow-dark);
  --step-2-mid: var(--color-amber-dark);
  --step-2-dark: #854d0e;
  --step-2-border: var(--color-yellow);
  --step-2-glow: rgba(250, 204, 21, 0.6);
  --step-2-glow-icon: rgba(250, 204, 21, 0.8);
  
  /* Step 3 - Green */
  --step-3-light: var(--color-green);
  --step-3-base: var(--color-green-dark);
  --step-3-mid: #15803d;
  --step-3-dark: #166534;
  --step-3-border: var(--color-green);
  --step-3-glow: rgba(74, 222, 128, 0.6);
  --step-3-glow-icon: rgba(74, 222, 128, 0.8);
  
  /* Общие значения теней */
  --card-shadow: 6px 6px 0 0 rgba(0, 0, 0, 0.4);
  --card-shadow-hover: 6px 14px 0 0 rgba(0, 0, 0, 0.3);
  --card-inset-light: inset 0 2px 0 0 rgba(255, 255, 255, 0.2);
  --card-inset-light-hover: inset 0 2px 0 0 rgba(255, 255, 255, 0.3);
  --card-inset-dark: inset 0 -2px 0 0 rgba(0, 0, 0, 0.2);
}

/* Container */
.wp-block-prostovpn-how-it-works .steps-container {
  position: relative;
}

/* Progress line (desktop only) */
.steps-progress {
  display: none;
}

@media (min-width: 768px) {
  .steps-progress {
    display: block;
    position: absolute;
    top: 100px;
    left: 15%;
    right: 15%;
    height: 4px;
    z-index: 0;
  }
  
  .steps-progress__line {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
      90deg,
      var(--color-gray-dark) 0px,
      var(--color-gray-dark) 8px,
      transparent 8px,
      transparent 16px
    );
  }
  
  .steps-progress__fill {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 0%;
    background: linear-gradient(90deg, var(--color-cyan), var(--color-blue), var(--color-purple));
    transition: width 1s ease-out 0.5s; /* Задержка после появления карточек */
  }
  
  .steps-container.is-visible .steps-progress__fill {
    width: 100%;
  }
}

/* Steps grid */
.steps-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Step card wrapper (li element) */
.step-card-wrapper {
  display: flex;
  flex: 1 1 0;
  min-width: 0;
}

/* Mobile: single column, full width cards */
@media (max-width: 767px) {
  .steps-grid {
    flex-direction: column;
  }
  
  .step-card-wrapper {
    width: 100%;
    flex: none;
  }
  
  .step-card {
    width: 100%;
  }
}

@media (min-width: 768px) {
  .steps-grid {
    flex-direction: row;
    align-items: stretch;
    gap: var(--space-lg);
  }
}

@media (min-width: 1024px) {
  .steps-grid {
    gap: var(--space-2xl);
  }
}

/* Step card */
.step-card {
  position: relative;
  flex: 1;
  width: 100%;
  border: var(--border-width) solid var(--color-purple);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

/* Card colors by step - яркие градиентные фоны */
.step-card[data-step="1"] {
  background: linear-gradient(145deg, var(--step-1-base) 0%, var(--step-1-mid) 50%, var(--step-1-dark) 100%);
  border-color: var(--step-1-border);
  box-shadow: var(--card-shadow), var(--card-inset-light), var(--card-inset-dark);
}

.step-card[data-step="2"] {
  background: linear-gradient(145deg, var(--step-2-base) 0%, var(--step-2-mid) 50%, var(--step-2-dark) 100%);
  border-color: var(--step-2-border);
  box-shadow: var(--card-shadow), var(--card-inset-light), var(--card-inset-dark);
}

.step-card[data-step="3"] {
  background: linear-gradient(145deg, var(--step-3-base) 0%, var(--step-3-mid) 50%, var(--step-3-dark) 100%);
  border-color: var(--step-3-border);
  box-shadow: var(--card-shadow), var(--card-inset-light), var(--card-inset-dark);
}

/* Hover effects */
.step-card:hover {
  transform: translateY(-8px) scale(1.02);
}

.step-card[data-step="1"]:hover {
  background: linear-gradient(145deg, var(--step-1-light) 0%, var(--step-1-base) 50%, var(--step-1-mid) 100%);
  box-shadow: var(--card-shadow-hover), var(--card-inset-light-hover), var(--card-inset-dark);
}

.step-card[data-step="2"]:hover {
  background: linear-gradient(145deg, var(--step-2-light) 0%, var(--step-2-base) 50%, var(--step-2-mid) 100%);
  box-shadow: var(--card-shadow-hover), var(--card-inset-light-hover), var(--card-inset-dark);
}

.step-card[data-step="3"]:hover {
  background: linear-gradient(145deg, var(--step-3-light) 0%, var(--step-3-base) 50%, var(--step-3-mid) 100%);
  box-shadow: var(--card-shadow-hover), var(--card-inset-light-hover), var(--card-inset-dark);
}

/* Sparkles decoration */
.step-card__sparkles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.step-card:hover .step-card__sparkles {
  opacity: 1;
}

.sparkle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-white);
}

.sparkle--1 {
  top: 15%;
  right: 10%;
  animation: sparkle-float 1.5s ease-in-out infinite;
}

.sparkle--2 {
  top: 60%;
  left: 8%;
  animation: sparkle-float 1.8s ease-in-out infinite 0.3s;
}

.sparkle--3 {
  bottom: 20%;
  right: 15%;
  animation: sparkle-float 1.6s ease-in-out infinite 0.6s;
}

@keyframes sparkle-float {
  0%, 100% {
    opacity: 0.3;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.5);
  }
}

/* Step number badge */
.step-card__badge {
  position: absolute;
  top: -2px;
  left: -2px;
  width: var(--size-36);
  height: var(--size-36);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-pixel);
  font-size: var(--text-base);
  color: var(--color-black);
  z-index: 5;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.3);
}

.step-card[data-step="1"] .step-card__badge {
  background: var(--color-white);
  color: var(--step-1-base);
}

.step-card[data-step="2"] .step-card__badge {
  background: var(--color-white);
  color: var(--step-2-mid);
}

.step-card[data-step="3"] .step-card__badge {
  background: var(--color-white);
  color: var(--step-3-mid);
}

.step-card__badge-text {
  position: relative;
  top: 1px;
}

/* Pixel icon */
.step-card__icon {
  width: var(--size-64);
  height: var(--size-64);
  margin: 0 auto var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.pixel-icon {
  width: 100%;
  height: 100%;
  transition: transform 0.3s ease;
}

.step-card:hover .pixel-icon {
  transform: scale(1.1);
  animation: icon-bounce 0.5s ease;
}

@keyframes icon-bounce {
  0%, 100% { transform: scale(1.1) translateY(0); }
  50% { transform: scale(1.1) translateY(-4px); }
}

/* Icon colors by step - белые иконки с тенью для контраста */
.step-card__icon--telegram .pixel-icon {
  color: var(--color-white);
  filter: drop-shadow(2px 2px 0 var(--shadow-color));
}

.step-card__icon--coin .pixel-icon {
  color: var(--color-white);
  filter: drop-shadow(2px 2px 0 var(--shadow-color));
}

.step-card__icon--key .pixel-icon {
  color: var(--color-white);
  filter: drop-shadow(2px 2px 0 var(--shadow-color));
}

/* Content */
.step-card__content {
  position: relative;
  z-index: 2;
}

.step-card__title {
  font-family: var(--font-pixel);
  font-size: var(--text-sm);
  color: var(--color-white);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.5);
}

.step-card__desc {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.05;
  text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.3);
}

/* Blinking cursor */
.step-card__cursor {
  position: absolute;
  bottom: var(--space-lg);
  right: var(--space-lg);
  font-family: var(--font-pixel);
  font-size: var(--text-md);
  color: var(--color-white);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.step-card:hover .step-card__cursor {
  opacity: 1;
  animation: cursor-blink 0.8s steps(1) infinite;
}

@keyframes cursor-blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* Scanlines overlay */
.step-card__scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.03),
    rgba(0, 0, 0, 0.03) 1px,
    transparent 1px,
    transparent 2px
  );
  pointer-events: none;
  z-index: 10;
}

/* Arrow between steps */
li.step-arrow {
  display: none;
  flex: 0 0 auto;
}

@media (min-width: 768px) {
  li.step-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: var(--size-24);
    color: var(--color-gray);
    opacity: 0.5;
    transition: opacity 0.3s ease, color 0.3s ease;
    padding-top: 80px;
  }
  
  .step-arrow__svg {
    width: var(--size-24);
    height: var(--size-24);
    animation: arrow-pulse 2s ease-in-out infinite;
  }
  
  .steps-container:hover li.step-arrow {
    opacity: 1;
    color: var(--color-cyan);
  }
  
  @keyframes arrow-pulse {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(4px); }
  }
}

/* Tablet adjustments */
@media (min-width: 768px) {
  .step-card {
    padding: var(--space-3xl) var(--space-xl);
  }
  
  .step-card__icon {
    width: var(--size-80);
    height: var(--size-80);
    margin-bottom: var(--space-2xl);
  }
  
  .step-card__badge {
    width: var(--size-40);
    height: var(--size-40);
    font-size: var(--text-md);
  }
  
  .step-card__title {
    font-size: var(--text-md);
    margin-bottom: var(--space-md);
  }
  
  .step-card__desc {
    font-size: 15px;
  }
}

/* Desktop adjustments */
@media (min-width: 1024px) {
  .steps-progress {
    top: 120px;
  }
  
  .step-card {
    padding: var(--space-4xl) var(--space-2xl);
  }
  
  .step-card__icon {
    width: var(--size-96);
    height: var(--size-96);
    margin-bottom: var(--space-3xl);
  }
  
  .step-card__badge {
    width: var(--size-48);
    height: var(--size-48);
    font-size: var(--text-lg);
  }
  
  .step-card__title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-lg);
  }
  
  .step-card__desc {
    font-size: var(--text-md);
  }
  
  .step-arrow {
    width: var(--size-32);
    margin-top: 100px;
  }
  
  .step-arrow__svg {
    width: var(--size-32);
    height: var(--size-32);
  }
}

/* Scroll animation (появление при скролле) */
.step-card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* Анимация запускается только когда контейнер виден */
.steps-container.is-visible .step-card {
  opacity: 1;
  transform: translateY(0);
}

/* Задержка для каскадного появления */
.steps-container.is-visible .step-card[data-step="1"] { transition-delay: 0.1s; }
.steps-container.is-visible .step-card[data-step="2"] { transition-delay: 0.3s; }
.steps-container.is-visible .step-card[data-step="3"] { transition-delay: 0.5s; }

/* Clickable card styles */
.step-card--clickable {
  cursor: pointer;
  text-decoration: none;
  display: block;
}

.step-card--clickable:hover {
  transform: translateY(-10px) scale(1.03);
}

.step-card--clickable:active {
  transform: translateY(-4px) scale(1.01);
}


/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .step-card,
  .sparkle,
  .pixel-icon,
  .step-arrow__svg,
  .step-card__cursor,
  .steps-progress__fill {
    animation: none;
    transition: none;
  }
  
  .step-card {
    opacity: 1;
    transform: none;
  }
  
  .steps-progress__fill {
    width: 100%;
  }
}