/* ================================================
   Simple AI — Custom Styles
   Extends Tailwind with brand-specific design
   ================================================ */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---- CSS Custom Properties ---- */
:root {
  /* Brand greens */
  --green-50: #f0faf4;
  --green-100: #d1f2e0;
  --green-200: #a8d5ba;
  --green-300: #7ec8a0;
  --green-400: #6fcf97;
  --green-500: #4caf6e;
  --green-600: #3a9a5c;

  /* Brand blues / purples */
  --blue-400: #818cf8;
  --blue-500: #667eea;
  --blue-600: #5a67d8;
  --purple-400: #a78bfa;
  --purple-500: #764ba2;
  --purple-600: #6b21a8;

  /* Neutrals */
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-700: #404040;
  --gray-800: #262626;
  --gray-900: #171717;
  --gray-950: #0a0a0a;

  /* Semantic tokens - Light mode */
  --bg-primary: #ffffff;
  --bg-secondary: var(--gray-50);
  --bg-tertiary: var(--gray-100);
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-600);
  --text-tertiary: var(--gray-400);
  --border-color: var(--gray-200);
  --card-bg: #ffffff;
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --card-shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.08), 0 8px 16px rgba(0, 0, 0, 0.04);
  --nav-bg: rgba(255, 255, 255, 0.72);
  --nav-bg-scrolled: rgba(255, 255, 255, 0.92);
  --nav-blur: 20px;
  --glow-color: rgba(102, 126, 234, 0.15);

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, var(--green-400) 0%, var(--blue-500) 50%, var(--purple-500) 100%);
  --gradient-subtle: linear-gradient(135deg, var(--green-50) 0%, #eef2ff 50%, #f5f3ff 100%);
  --gradient-text: linear-gradient(135deg, var(--green-400) 0%, var(--blue-500) 50%, var(--purple-400) 100%);
  --gradient-card: linear-gradient(135deg, rgba(111, 207, 151, 0.05) 0%, rgba(102, 126, 234, 0.05) 100%);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --nav-height: 72px;
  --section-gap: 120px;
  --container-max: 1200px;
  --container-padding: 24px;
}

/* ---- Dark Mode ---- */
[data-theme="dark"] {
  --bg-primary: var(--gray-950);
  --bg-secondary: var(--gray-900);
  --bg-tertiary: var(--gray-800);
  --text-primary: var(--gray-100);
  --text-secondary: var(--gray-400);
  --text-tertiary: var(--gray-500);
  --border-color: var(--gray-800);
  --card-bg: var(--gray-900);
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --card-shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.4), 0 8px 16px rgba(0, 0, 0, 0.3);
  --nav-bg: rgba(10, 10, 10, 0.72);
  --nav-bg-scrolled: rgba(10, 10, 10, 0.92);
  --glow-color: rgba(102, 126, 234, 0.2);
  --gradient-subtle: linear-gradient(135deg, rgba(111, 207, 151, 0.05) 0%, rgba(102, 126, 234, 0.08) 50%, rgba(118, 75, 162, 0.05) 100%);
  --gradient-card: linear-gradient(135deg, rgba(111, 207, 151, 0.08) 0%, rgba(102, 126, 234, 0.08) 100%);
}

/* ---- Base Reset & Typography ---- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

/* ---- Gradient Text ---- */
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--nav-bg);
  backdrop-filter: blur(var(--nav-blur));
  -webkit-backdrop-filter: blur(var(--nav-blur));
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.nav.scrolled {
  background: var(--nav-bg-scrolled);
  border-bottom-color: var(--border-color);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--gradient-brand);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-logo-icon svg {
  width: 18px;
  height: 18px;
  color: white;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 1px;
}

/* Theme toggle button */
.theme-toggle {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--bg-tertiary);
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), transform var(--transition-fast);
  color: var(--text-secondary);
}

.theme-toggle:hover {
  background: var(--border-color);
  transform: scale(1.05);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-base);
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

.theme-toggle .icon-sun {
  display: none;
}

.theme-toggle .icon-moon {
  display: block;
}

/* Mobile hamburger */
.nav-hamburger {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.nav-hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav drawer */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  padding: 32px var(--container-padding);
  z-index: 999;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.nav-mobile.open {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.nav-mobile a {
  display: block;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-color);
  transition: color var(--transition-fast);
}

.nav-mobile a:hover {
  color: var(--blue-500);
}

/* ---- Section Styles ---- */
.section {
  padding: var(--section-gap) var(--container-padding);
}

.section-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.section-label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blue-500);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 640px;
}

/* ---- Hero ---- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(102, 126, 234, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(111, 207, 151, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--blue-500);
  background: rgba(102, 126, 234, 0.08);
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero-title {
  font-size: clamp(2.75rem, 6.5vw, 5.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 28px;
  max-width: 900px;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 48px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn-primary {
  background: var(--gradient-brand);
  color: white;
  box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 8px 28px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--border-color);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.btn svg {
  width: 18px;
  height: 18px;
}

/* ---- Cards ---- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 40px;
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-4px);
  border-color: transparent;
}

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

.card-icon {
  width: 56px;
  height: 56px;
  background: var(--gradient-subtle);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.card-icon svg {
  width: 28px;
  height: 28px;
  color: var(--blue-500);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.card-description {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---- Feature Grid ---- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ---- Stats Strip ---- */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 64px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ---- Newsletter ---- */
.newsletter {
  background: var(--gradient-subtle);
  border-radius: 24px;
  padding: 80px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.newsletter::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--glow-color) 0%, transparent 70%);
  pointer-events: none;
}

.newsletter-form {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  max-width: 480px;
  margin: 32px auto 0;
}

.newsletter-input {
  flex: 1;
  padding: 14px 20px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  font-family: inherit;
  font-size: 0.9375rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.newsletter-input:focus {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.newsletter-input::placeholder {
  color: var(--text-tertiary);
}

/* ---- Footer ---- */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 64px var(--container-padding) 40px;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-top: 16px;
  max-width: 280px;
}

.footer-column h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: 20px;
}

.footer-column a {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.footer-column a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  max-width: var(--container-max);
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* ---- Scroll Animations ---- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-delay-1 {
  transition-delay: 100ms;
}

.reveal-delay-2 {
  transition-delay: 200ms;
}

.reveal-delay-3 {
  transition-delay: 300ms;
}

.reveal-delay-4 {
  transition-delay: 400ms;
}

/* ---- Toast Notification ---- */
.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background: var(--gray-900);
  color: white;
  padding: 14px 24px;
  border-radius: 12px;
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  z-index: 9999;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-base), transform var(--transition-base);
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

[data-theme="dark"] .toast {
  background: var(--gray-100);
  color: var(--gray-900);
}

/* ---- Accordion ---- */
.accordion-item {
  border: 1px solid var(--border-color);
  border-radius: 16px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition-base);
}

.accordion-item:hover {
  border-color: var(--blue-400);
}

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
}

.accordion-header svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-base);
  flex-shrink: 0;
  color: var(--text-tertiary);
}

.accordion-item.open .accordion-header svg {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.accordion-content-inner {
  padding: 0 24px 24px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ---- Tag / Badge ---- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tag-green {
  background: rgba(111, 207, 151, 0.12);
  color: var(--green-500);
}

.tag-blue {
  background: rgba(102, 126, 234, 0.12);
  color: var(--blue-500);
}

.tag-purple {
  background: rgba(167, 139, 250, 0.12);
  color: var(--purple-400);
}

/* ---- Filter buttons ---- */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 8px 20px;
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--blue-400);
  color: var(--blue-500);
}

.filter-btn.active {
  background: var(--gradient-brand);
  color: white;
  border-color: transparent;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  :root {
    --section-gap: 80px;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --section-gap: 64px;
    --nav-height: 64px;
  }

  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .stats-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    padding: 40px 0;
  }

  .hero-title {
    font-size: clamp(2.25rem, 8vw, 3.5rem);
  }

  .newsletter {
    padding: 48px 24px;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-input,
  .newsletter-form .btn {
    width: 100%;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .card {
    padding: 28px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }
}

/* ---- Responsive inline grid overrides ---- */
@media (max-width: 768px) {

  /* Prompt templates 2-col grid */
  #prompt-templates {
    grid-template-columns: 1fr !important;
  }

  /* Contact form name/email row */
  #contact-form>div:first-child {
    grid-template-columns: 1fr !important;
  }
}

/* ---- Gamification: XP Toast ---- */
.xp-toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  padding: 12px 24px;
  border-radius: 100px;
  background: linear-gradient(135deg, var(--blue-500), var(--purple-400));
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1100;
  box-shadow: 0 8px 30px rgba(102, 126, 234, 0.35);
}

.xp-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.xp-toast-amount {
  font-size: 1.125rem;
  font-weight: 800;
}

/* ---- Gamification: Level-Up Modal ---- */
.levelup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.levelup-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.levelup-modal {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 48px 40px;
  text-align: center;
  max-width: 360px;
  width: 90%;
  animation: levelup-pop 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes levelup-pop {
  from { transform: scale(0.8) translateY(20px); opacity: 0; }
  to   { transform: scale(1) translateY(0); opacity: 1; }
}

.levelup-confetti {
  font-size: 3rem;
  animation: confetti-bounce 0.6s ease infinite alternate;
  margin-bottom: 12px;
}

@keyframes confetti-bounce {
  from { transform: translateY(0) rotate(-5deg); }
  to   { transform: translateY(-10px) rotate(5deg); }
}

.levelup-modal h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.levelup-level {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue-500), var(--purple-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.levelup-title {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ---- Gamification: Badge Toast ---- */
.badge-toast {
  position: fixed;
  top: 100px;
  right: 24px;
  padding: 14px 20px;
  border-radius: 16px;
  background: var(--bg-primary);
  border: 1px solid var(--green-400);
  color: var(--text-primary);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transform: translateX(100px);
  pointer-events: none;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1100;
  box-shadow: 0 8px 30px rgba(111, 207, 151, 0.2);
}

.badge-toast.show {
  opacity: 1;
  transform: translateX(0);
}

.badge-toast-emoji {
  font-size: 1.5rem;
}