/* ============================================
   MENTORIA PAGE — FULL STYLESHEET
   Shares the same design system as the ebook
   landing page but with purple/blue accent theme
   ============================================ */

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Colors — Purple/Blue theme for mentorship */
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(124, 77, 255, 0.3);

  --text-primary: #f0f0f5;
  --text-secondary: #9e9eb8;
  --text-muted: #6b6b80;

  --accent-primary: #7c4dff;
  --accent-primary-dark: #651fff;
  --accent-primary-glow: rgba(124, 77, 255, 0.15);
  --accent-blue: #448aff;
  --accent-cyan: #18ffff;
  --accent-green: #00e676;

  --gradient-hero: linear-gradient(135deg, #7c4dff 0%, #448aff 40%, #18ffff 100%);
  --gradient-accent: linear-gradient(135deg, #7c4dff 0%, #448aff 100%);
  --gradient-accent-green: linear-gradient(135deg, #00e676 0%, #00c853 100%);
  --gradient-card: linear-gradient(135deg, rgba(124, 77, 255, 0.05) 0%, rgba(68, 138, 255, 0.05) 100%);

  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;

  /* Spacing */
  --section-padding: 120px 0;
  --container-max: 1140px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

@keyframes scroll-down {
  0% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(12px); opacity: 0.3; }
  100% { transform: translateY(0); opacity: 1; }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer-line {
  0% { left: -100%; }
  100% { left: 200%; }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   HEADER
   ============================================ */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-smooth);
}

#site-header.scrolled {
  padding: 10px 0;
  background: rgba(10, 10, 15, 0.95);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.header-nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.header-nav-link:hover {
  color: var(--text-primary);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  font-size: 1.5rem;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo-accent {
  color: var(--accent-primary);
}

.header-cta-btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  background: var(--gradient-accent);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 50px;
  letter-spacing: 0.02em;
  transition: var(--transition-fast);
}

.header-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-primary-glow);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px 0 100px;
  overflow: hidden;
}

.hero-bg-effects {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
}

.hero-orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 77, 255, 0.14) 0%, transparent 70%);
  top: -200px;
  right: -100px;
  animation: float 8s ease-in-out infinite;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(68, 138, 255, 0.1) 0%, transparent 70%);
  bottom: -100px;
  left: -100px;
  animation: float 10s ease-in-out infinite 2s;
}

.hero-orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(24, 255, 255, 0.06) 0%, transparent 70%);
  top: 40%;
  left: 50%;
  animation: float 12s ease-in-out infinite 4s;
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.4) 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.4) 0%, transparent 70%);
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 850px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border-accent);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-primary);
  margin-bottom: 32px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-primary);
  animation: pulse-glow 2s ease-in-out infinite;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 28px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.highlight {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.highlight-secondary {
  color: var(--accent-cyan);
  -webkit-text-fill-color: var(--accent-cyan);
}

.hero-subheadline {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-subheadline strong {
  color: var(--text-primary);
}

/* CTA Button */
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 40px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: 60px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.cta-primary {
  background: var(--gradient-accent-green);
  color: #0a0a0f;
  box-shadow: 0 4px 30px rgba(0, 230, 118, 0.15), 0 0 0 0 rgba(0, 230, 118, 0.15);
}

.cta-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 50px rgba(0, 230, 118, 0.3), 0 0 0 4px rgba(0, 230, 118, 0.1);
}

.cta-primary:active {
  transform: translateY(-1px) scale(0.99);
}

.cta-icon {
  font-size: 1.1rem;
}

.cta-arrow {
  transition: transform var(--transition-fast);
}

.cta-primary:hover .cta-arrow {
  transform: translateX(4px);
}

.cta-large {
  padding: 22px 52px;
  font-size: 1.1rem;
}

/* Hero Trust */
.hero-trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.trust-icon {
  font-size: 1rem;
}

/* Scroll Indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
}

.scroll-line {
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-primary), transparent);
  animation: scroll-down 2s ease-in-out infinite;
}

/* ============================================
   SECTION SHARED STYLES
   ============================================ */
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 60px;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.section-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-primary);
  margin-bottom: 12px;
  text-align: center;
}

.highlight-text {
  color: var(--accent-primary);
  font-weight: 600;
}

/* ============================================
   DIAGNÓSTICO SECTION (BLOCO 2)
   ============================================ */
.diagnostico-section {
  padding: var(--section-padding);
  background: var(--bg-secondary);
  position: relative;
}

.diagnostico-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

.diagnostico-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.diagnostico-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.diagnostico-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(124,77,255,0.25), transparent, rgba(68,138,255,0.25));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.diagnostico-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

.diagnostico-card:hover::before {
  opacity: 1;
}

.diagnostico-card-icon {
  font-size: 2.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.diagnostico-card-content h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.diagnostico-card-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.diagnostico-card-content p strong {
  color: var(--text-primary);
}

/* ============================================
   PILARES SECTION (BLOCO 3)
   ============================================ */
.pilares-section {
  padding: var(--section-padding);
  position: relative;
}

.pilares-section::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(124, 77, 255, 0.06) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  filter: blur(80px);
  pointer-events: none;
}

.pilares-header {
  margin-bottom: 60px;
  position: relative;
}

.pilares-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  text-align: center;
  max-width: 600px;
  margin: -40px auto 0;
}

.pilares-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}

.pilar-card {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.pilar-card::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.pilar-card:hover {
  background: var(--bg-card-hover);
  transform: translateX(8px);
  border-color: var(--border-accent);
}

.pilar-card:hover::after {
  opacity: 1;
}

.pilar-number-wrap {
  min-width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(124, 77, 255, 0.08), rgba(68, 138, 255, 0.08));
  border: 1px solid rgba(124, 77, 255, 0.15);
  flex-shrink: 0;
  transition: all var(--transition-smooth);
}

.pilar-card:hover .pilar-number-wrap {
  background: linear-gradient(135deg, rgba(124, 77, 255, 0.15), rgba(68, 138, 255, 0.15));
  border-color: rgba(124, 77, 255, 0.3);
}

.pilar-number {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.pilar-content {
  flex: 1;
}

.pilar-content h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.pilar-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.pilar-content p strong {
  color: var(--text-primary);
}

.pilar-icon {
  font-size: 2rem;
  opacity: 0.6;
  transition: opacity var(--transition-smooth);
}

.pilar-card:hover .pilar-icon {
  opacity: 1;
}

/* ============================================
   APLICAÇÃO SECTION (BLOCO 4)
   ============================================ */
.aplicacao-section {
  padding: var(--section-padding);
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.aplicacao-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

.aplicacao-section::after {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 77, 255, 0.05) 0%, transparent 70%);
  bottom: -200px;
  right: -200px;
  filter: blur(80px);
  pointer-events: none;
}

.aplicacao-wrapper {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

/* Alert Banner */
.aplicacao-alert {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 32px;
  background: linear-gradient(135deg, rgba(255, 193, 7, 0.06), rgba(255, 152, 0, 0.06));
  border: 1px solid rgba(255, 193, 7, 0.2);
  border-radius: 16px;
  margin-bottom: 40px;
}

.aplicacao-alert-icon {
  font-size: 1.5rem;
}

.aplicacao-alert h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: #ffc107;
  letter-spacing: 0.04em;
}

/* Content */
.aplicacao-content {
  margin-bottom: 50px;
}

.aplicacao-intro {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.aplicacao-intro strong {
  color: var(--text-primary);
}

.aplicacao-destaque {
  font-size: 1.05rem;
  color: var(--text-secondary);
  padding: 24px 28px;
  background: var(--gradient-card);
  border-left: 3px solid var(--accent-primary);
  border-radius: 0 14px 14px 0;
  text-align: left;
  line-height: 1.7;
}

.aplicacao-destaque strong {
  color: var(--accent-primary);
}

/* Steps */
.aplicacao-steps {
  margin-bottom: 50px;
}

.steps-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 32px;
}

.steps-grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
}

.step-item {
  flex: 1;
  max-width: 220px;
  padding: 24px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  transition: all var(--transition-smooth);
}

.step-item:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  border-color: var(--border-accent);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--gradient-accent);
  border-radius: 12px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 16px;
}

.step-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step-item p strong {
  color: var(--text-primary);
}

.step-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  margin-top: 40px;
}

.connector-line {
  width: 30px;
  height: 2px;
  background: linear-gradient(90deg, rgba(124, 77, 255, 0.3), rgba(68, 138, 255, 0.3));
}

.connector-arrow {
  font-size: 1.2rem;
  color: var(--accent-primary);
  font-weight: 700;
  margin-top: -4px;
  display: none;
}

/* CTA Area */
.aplicacao-cta {
  text-align: center;
}

.aplicacao-disclaimer {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 16px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer-section {
  padding: 60px 0 40px;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
}

.footer-content {
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 24px;
}

.footer-brand .logo-icon {
  font-size: 1.8rem;
}

.footer-brand .logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
}

.footer-info h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.footer-info p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.footer-links {
  margin-top: 24px;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent-primary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-blue);
}

.footer-bottom {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 992px) {
  :root {
    --section-padding: 80px 0;
  }

  .diagnostico-grid {
    grid-template-columns: 1fr;
    max-width: 560px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 64px 0;
  }

  .hero-section {
    padding: 120px 0 80px;
  }

  .hero-headline {
    font-size: clamp(1.6rem, 6vw, 2.4rem);
  }

  .cta-button {
    padding: 16px 28px;
    font-size: 0.85rem;
  }

  .cta-large {
    padding: 18px 32px;
    font-size: 0.95rem;
  }

  .hero-trust {
    gap: 16px;
  }

  .pilar-card {
    padding: 24px;
    gap: 16px;
  }

  .pilar-number-wrap {
    min-width: 44px;
    height: 44px;
    border-radius: 12px;
  }

  .pilar-content h3 {
    font-size: 1rem;
  }

  .pilar-content p {
    font-size: 0.88rem;
  }

  .section-title {
    font-size: clamp(1.4rem, 4vw, 2rem);
    margin-bottom: 40px;
  }

  .steps-grid {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }

  .step-item {
    max-width: 100%;
    width: 100%;
  }

  .step-connector {
    transform: rotate(90deg);
    padding: 0;
    margin-top: 0;
  }

  .diagnostico-card {
    padding: 24px 20px;
  }

  .diagnostico-card-icon {
    font-size: 1.8rem;
  }

  .aplicacao-alert {
    padding: 12px 20px;
  }

  .aplicacao-alert h3 {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-headline {
    font-size: 1.5rem;
  }

  .hero-subheadline {
    font-size: 0.95rem;
  }

  .cta-button {
    padding: 14px 20px;
    font-size: 0.8rem;
    gap: 8px;
  }

  .cta-large {
    padding: 16px 24px;
    font-size: 0.85rem;
  }

  .pilar-icon {
    display: none;
  }

  .header-cta-btn {
    padding: 8px 16px;
    font-size: 0.75rem;
  }

  .header-nav-link {
    font-size: 0.8rem;
  }

  .header-nav {
    gap: 12px;
  }

  .diagnostico-card {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
}

/* ============================================
   SCROLL TO TOP BUTTON
   ============================================ */
#scroll-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border-accent);
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--accent-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

#scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#scroll-to-top:hover {
  background: rgba(124, 77, 255, 0.12);
  border-color: var(--accent-primary);
  box-shadow: 0 4px 30px var(--accent-primary-glow);
  transform: translateY(-3px);
}

#scroll-to-top:active {
  transform: translateY(-1px);
}

@media (max-width: 480px) {
  #scroll-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
  }
}