/*
  How It Works Page Styles
  ========================
  Page-specific styles for the "How Museli Works" page.
  Uses shared styles from styles.css
*/

/* Hero Section Override */
.hiw-hero {
  min-height: 50vh;
  display: flex;
  align-items: center;
  padding: 80px 0 60px;
}

.hiw-hero-content {
  text-align: center;
  width: 100%;
}

.hiw-hero h1 {
  font-size: 3rem;
  font-weight: 900;
  margin-bottom: 0.5rem;
  color: var(--color-text-light);
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

/* Hero Flow Diagram Preview */
.hero-diagram-preview {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
}

.hero-flow-icon {
  width: 100%;
  max-width: 350px;
  height: auto;
}

.flow-circle {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 2;
}

.flow-circle.flow-1 {
  animation: flowPulse 3s ease-in-out infinite;
}

.flow-circle.flow-2 {
  animation: flowPulse 3s ease-in-out 1s infinite;
}

.flow-circle.flow-3 {
  animation: flowPulse 3s ease-in-out 2s infinite;
}

@keyframes flowPulse {

  0%,
  100% {
    stroke-width: 2;
    opacity: 0.6;
  }

  50% {
    stroke-width: 4;
    opacity: 1;
  }
}

.flow-text {
  fill: var(--color-text-light);
  font-size: 10px;
  font-weight: 700;
  font-family: 'Nunito', sans-serif;
}

.flow-arrow {
  stroke: var(--color-accent);
  stroke-width: 2;
  fill: none;
  stroke-dasharray: 5 3;
  animation: flowDash 1.5s linear infinite;
}

/* @keyframes flowDash {
  0% {
    stroke-dashoffset: 0;
  }

  100% {
    stroke-dashoffset: -16;
  }
} */

/* General Section Styles */
.hiw-section {
  padding: 80px 0;
  position: relative;
  z-index: 1;
}

.hiw-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.hiw-section h1,
.hiw-section h2 {
  text-align: center;
  margin-bottom: 1rem;
}

.section-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

/* Learn-Practice-Perform Section */
.lpp-section {
  background: linear-gradient(180deg, var(--color-secondary) 0%, var(--color-feature-bg) 100%);
}

.lpp-diagram {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 3rem;
}

.lpp-cycle {
  width: 100%;
  max-width: 400px;
  height: auto;
}

.lpp-arrow {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 2;
  stroke-dasharray: 8 4;
  opacity: 0.6;
}

.lpp-arrow-1 {
  animation: arrowFlow 2s ease-in-out infinite;
}

.lpp-arrow-2 {
  animation: arrowFlow 2s ease-in-out 0.7s infinite;
}

.lpp-arrow-3 {
  animation: arrowFlow 2s ease-in-out 1.4s infinite;
}

@keyframes arrowFlow {

  0%,
  100% {
    stroke-dashoffset: 0;
    opacity: 0.4;
  }

  50% {
    stroke-dashoffset: -24;
    opacity: 1;
  }
}

.lpp-node .node-bg {
  fill: var(--color-card-bg);
  stroke: var(--color-accent);
  stroke-width: 2;
  transition: all 0.3s ease;
}

.lpp-node:hover .node-bg {
  fill: rgba(0, 166, 118, 0.2);
  stroke-width: 3;
}

.lpp-node .node-icon {
  fill: var(--color-accent);
}

.lpp-node .node-label {
  fill: var(--color-text-light);
  font-size: 14px;
  font-weight: 700;
  font-family: 'Nunito', sans-serif;
}

/* LPP Cards */
.lpp-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 900px) {
  .lpp-cards {
    grid-template-columns: 1fr;
    max-width: 400px;
  }
}

.lpp-card {
  background: linear-gradient(135deg, var(--glass-bg), rgba(0, 166, 118, 0.05));
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.lpp-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 166, 118, 0.2);
}

/* Staggered appear animations for cards */
.lpp-card,
.exercise-card {
  opacity: 0;
  transform: translateY(20px);
}

.lpp-card.appear,
.exercise-card.appear {
  opacity: 1;
  transform: translateY(0);
}

.lpp-card:nth-child(1) {
  transition-delay: 0.1s;
}

.lpp-card:nth-child(2) {
  transition-delay: 0.2s;
}

.lpp-card:nth-child(3) {
  transition-delay: 0.3s;
}

.exercise-card:nth-child(1) {
  transition-delay: 0.05s;
}

.exercise-card:nth-child(2) {
  transition-delay: 0.1s;
}

.exercise-card:nth-child(3) {
  transition-delay: 0.15s;
}

.exercise-card:nth-child(4) {
  transition-delay: 0.2s;
}

.exercise-card:nth-child(5) {
  transition-delay: 0.25s;
}

.exercise-card:nth-child(6) {
  transition-delay: 0.3s;
}

.lpp-card-icon {
  width: 48px;
  height: 48px;
  background: rgba(0, 166, 118, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.lpp-card-icon svg {
  width: 24px;
  height: 24px;
  fill: var(--color-accent);
}

.lpp-card h3 {
  color: var(--color-text-light);
  margin-bottom: 0.5rem;
}

.lpp-card p {
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.lpp-features {
  list-style: none;
  padding: 0;
  margin: 0;
}

.lpp-features li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.lpp-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

/* Spaced Repetition Section */
.sr-section {
  background: linear-gradient(180deg, var(--color-feature-bg) 0%, var(--color-primary) 100%);
}

.sr-diagram {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  align-items: center;
  justify-content: center;
  max-width: 1000px;
  margin: 0 auto;
}

.sr-curve-container {
  flex: 1 1 55%;
  min-width: 300px;
  max-width: 550px;
}

.sr-curve {
  width: 100%;
  height: auto;
}

.forgetting-curve {
  fill: none;
  stroke: var(--color-accent-light);
  stroke-width: 3;
  opacity: 0.4;
}

.review-point {
  fill: var(--color-accent);
  r: 0;
  opacity: 0;
}

.sr-curve.animate .review-point {
  animation: reviewAppear 0.6s ease forwards;
}

.sr-curve.animate .rp-1 {
  animation-delay: 0.1s;
}

.sr-curve.animate .rp-2 {
  animation-delay: 0.35s;
}

.sr-curve.animate .rp-3 {
  animation-delay: 0.6s;
}

.sr-curve.animate .rp-4 {
  animation-delay: 0.85s;
}

.sr-curve.animate .rp-5 {
  animation-delay: 1.1s;
}

@keyframes reviewAppear {
  0% {
    r: 0;
    opacity: 0;
  }

  60% {
    r: 10;
    opacity: 1;
  }

  100% {
    r: 8;
    opacity: 1;
  }
}

.timeline {
  stroke: var(--color-text-muted);
  stroke-width: 1;
  opacity: 0.5;
}

.timeline-label {
  fill: var(--color-text-muted);
  font-size: 11px;
  font-family: 'Nunito', sans-serif;
}

.sr-explanation {
  flex: 1 1 40%;
  min-width: 280px;
}

.sr-point {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}

.sr-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: rgba(0, 166, 118, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sr-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--color-accent);
}

.sr-point h4 {
  color: var(--color-text-light);
  margin-bottom: 0.25rem;
  font-size: 1.1rem;
}

.sr-point p {
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* Adaptive Sessions Section */
.sessions-section {
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.sessions-diagram {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.session-pool {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  text-align: center;
  flex: 1;
  min-width: 150px;
  max-width: 200px;
}

.session-pool h4 {
  color: var(--color-accent);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.pool-cards {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mini-card {
  background: var(--color-card-bg);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  color: var(--color-text-light);
  animation: cardFloat 3s ease-in-out infinite;
}

.mc-1 {
  animation-delay: 0s;
}

.mc-2 {
  animation-delay: 0.2s;
}

.mc-3 {
  animation-delay: 0.4s;
}

.mc-4 {
  animation-delay: 0.1s;
}

.mc-5 {
  animation-delay: 0.3s;
}

.mc-6 {
  animation-delay: 0.5s;
}

@keyframes cardFloat {

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

  50% {
    transform: translateY(-3px);
  }
}

.your-session .pool-cards {
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
}

.mc-new {
  background: rgba(0, 166, 118, 0.3);
  border-color: var(--color-accent);
}

.mc-review {
  background: rgba(23, 195, 178, 0.2);
  border-color: var(--color-accent-light);
}

.session-arrow {
  width: 40px;
  height: 20px;
  flex-shrink: 0;
}

.session-arrow svg {
  width: 100%;
  height: 100%;
}

.session-arrow path {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 2;
  stroke-dasharray: 4 2;
  animation: flowDash 1s linear infinite;
}

.session-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
}

@media (max-width: 700px) {
  .session-features {
    grid-template-columns: 1fr;
    max-width: 350px;
  }
}

.session-feature {
  text-align: center;
  padding: 1.5rem;
}

.session-feature svg {
  width: 32px;
  height: 32px;
  fill: var(--color-accent);
  margin-bottom: 1rem;
}

.session-feature h4 {
  color: var(--color-text-light);
  margin-bottom: 0.5rem;
}

.session-feature p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* Progression Section */
.progression-section {
  background: linear-gradient(180deg, var(--color-secondary) 0%, var(--color-testimonial-bg) 100%);
}

.progression-container {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  align-items: center;
  justify-content: center;
  max-width: 900px;
  margin: 0 auto;
}

.skill-levels {
  flex: 1 1 40%;
  min-width: 280px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.skill-level {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
  opacity: 0.6;
}

.skill-level.active,
.skill-level:hover {
  opacity: 1;
  border-color: var(--color-accent);
  background: rgba(0, 166, 118, 0.1);
}

.level-badge {
  background: var(--color-accent);
  color: var(--color-primary);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
  min-width: 100px;
  text-align: center;
}

.level-5 .level-badge {
  background: #FFD700;
}

.level-4 .level-badge {
  background: #C0C0C0;
}

.level-3 .level-badge {
  background: #CD7F32;
}

.level-2 .level-badge {
  background: var(--color-accent-light);
}

.level-1 .level-badge {
  background: var(--color-accent);
}

.level-desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.mastery-stages {
  flex: 1 1 50%;
  min-width: 300px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 2rem;
}

.mastery-stages h4 {
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
  text-align: center;
}

.mastery-bar {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-bottom: 1.5rem;
  padding: 0 1rem;
}

.mastery-bar::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 1rem;
  right: 1rem;
  height: 4px;
  background: linear-gradient(90deg,
      var(--color-accent) 0%,
      var(--color-accent-light) 50%,
      #FFD700 100%);
  border-radius: 2px;
  z-index: 0;
}

.mastery-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 1;
}

.stage-dot {
  width: 20px;
  height: 20px;
  background: var(--color-primary);
  border: 3px solid var(--color-accent);
  border-radius: 50%;
  transition: all 0.3s ease;
}

.stage-learning .stage-dot {
  border-color: var(--color-accent);
}

.stage-developing .stage-dot {
  border-color: var(--color-accent-light);
}

.stage-mastering .stage-dot {
  border-color: #17C3B2;
}

.stage-mastered .stage-dot {
  border-color: #FFD700;
  background: #FFD700;
}

.stage-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.mastery-note {
  font-size: 0.85rem;
  text-align: center;
  margin-bottom: 0;
}

/* Exercise Showcase Section */
.exercises-section {
  background: linear-gradient(180deg, var(--color-testimonial-bg) 0%, var(--color-feature-bg) 100%);
}

.exercise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

@media (max-width: 800px) {
  .exercise-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 500px) {
  .exercise-grid {
    grid-template-columns: 1fr;
    max-width: 350px;
  }
}

.exercise-card {
  background: linear-gradient(135deg, var(--glass-bg), rgba(0, 166, 118, 0.03));
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.exercise-card:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: var(--color-accent);
  box-shadow: 0 15px 40px rgba(0, 166, 118, 0.25);
}

.exercise-icon {
  width: 60px;
  height: 60px;
  background: rgba(0, 166, 118, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  transition: all 0.3s ease;
}

.exercise-card:hover .exercise-icon {
  background: rgba(0, 166, 118, 0.25);
  transform: scale(1.1);
}

.exercise-icon svg {
  width: 28px;
  height: 28px;
  fill: var(--color-accent);
  color: var(--color-accent);
}

.exercise-card h4 {
  color: var(--color-text-light);
  margin-bottom: 0.5rem;
}

.exercise-card p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* Built-in Tools Section */
.tools-section {
  background: linear-gradient(180deg, var(--color-feature-bg) 0%, var(--color-primary) 100%);
  padding-bottom: 60px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 550px;
  margin: 0 auto;
}

@media (max-width: 600px) {
  .tools-grid {
    grid-template-columns: 1fr;
    max-width: 200px;
  }
}

.tool-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.5rem 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
  text-align: center;
}

.tool-item:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.tool-item svg {
  width: 36px;
  height: 36px;
  fill: var(--color-accent);
}

.tool-item span {
  color: var(--color-text-light);
  font-size: 0.9rem;
  font-weight: 600;
}

/* Back Link in CTA */
.back-link {
  display: inline-block;
  margin-top: 1.5rem;
  color: var(--color-primary);
  opacity: 0.8;
  font-size: 0.9rem;
  transition: opacity 0.2s;
}

.back-link:hover {
  opacity: 1;
  color: var(--color-primary);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .hiw-hero {
    min-height: 40vh;
    padding: 60px 0 40px;
  }

  .hiw-hero h1 {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .hiw-section {
    padding: 50px 0;
  }

  .section-intro {
    font-size: 1rem;
    margin-bottom: 2rem;
  }

  .lpp-cycle {
    max-width: 300px;
  }

  .sessions-diagram {
    flex-direction: column;
  }

  .session-pool {
    max-width: 280px;
    width: 100%;
  }

  .session-arrow {
    transform: rotate(90deg);
  }

  .progression-container {
    flex-direction: column;
  }

  .skill-levels {
    order: 2;
  }

  .mastery-stages {
    order: 1;
  }

  .mastery-bar {
    padding: 0;
  }

  .stage-label {
    font-size: 0.65rem;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {

  .flow-circle,
  .flow-arrow,
  .lpp-arrow,
  .mini-card,
  .review-point,
  .session-arrow path {
    animation: none !important;
  }

  .review-point {
    opacity: 1;
    r: 8;
  }

  .lpp-card,
  .exercise-card {
    opacity: 1;
    transform: none;
  }
}