/* =====================================================
   SPIKATO — Design System
   ===================================================== */

:root {
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #60A5FA;
  --accent: #7C3AED;
  --accent-light: #A78BFA;
  --success: #10B981;
  --bg: #FFFFFF;
  --bg-alt: #F8FAFF;
  --bg-dark: #0F172A;
  --text: #1E293B;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --border: #E2E8F0;
  --gradient: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
  --gradient-soft: linear-gradient(135deg, #EFF6FF 0%, #F5F3FF 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 16px rgba(37,99,235,.1), 0 2px 8px rgba(0,0,0,.06);
  --shadow-lg: 0 20px 60px rgba(37,99,235,.15), 0 8px 24px rgba(0,0,0,.1);
  --shadow-xl: 0 40px 100px rgba(37,99,235,.2);
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ————— Reset & Base ————— */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ————— Typography ————— */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.1rem; }
p { color: var(--text-muted); }

/* ————— Layout ————— */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-sm { padding: 60px 0; }

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

/* ————— Buttons ————— */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 12px;
  font-weight: 600; font-size: 1rem;
  cursor: pointer; border: none;
  transition: all .25s cubic-bezier(.4,0,.2,1);
  text-decoration: none;
}
.btn-primary {
  background: var(--gradient); color: white;
  box-shadow: 0 4px 20px rgba(37,99,235,.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(37,99,235,.45);
}
.btn-outline {
  background: transparent; color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary); color: white;
  transform: translateY(-2px);
}
.btn-ghost {
  background: rgba(255,255,255,.15); color: white;
  border: 1px solid rgba(255,255,255,.3);
  backdrop-filter: blur(12px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,.25);
  transform: translateY(-2px);
}
.btn-lg { padding: 18px 36px; font-size: 1.1rem; border-radius: 14px; }

/* ————— Tags / Pills ————— */
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 100px;
  font-size: .8rem; font-weight: 600; letter-spacing: .03em;
  text-transform: uppercase;
}
.tag-primary { background: rgba(37,99,235,.1); color: var(--primary); }
.tag-accent  { background: rgba(124,58,237,.1); color: var(--accent); }
.tag-success { background: rgba(16,185,129,.1); color: var(--success); }

/* ========================
   HEADER / NAV
======================== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all .3s ease;
}
.site-header.scrolled {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  box-shadow: var(--shadow-sm);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
}
.nav-logo img {
  width: 38px; height: 38px; border-radius: 10px;
  box-shadow: var(--shadow-sm);
}
.nav-logo span {
  font-size: 1.25rem; font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-links {
  display: flex; align-items: center; gap: 36px;
}
.nav-links a {
  font-weight: 500; color: var(--text-muted);
  transition: color .2s;
}
.nav-links a:hover { color: var(--primary); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.burger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all .3s; }

/* ========================
   HERO
======================== */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding-top: 80px;
}
.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #EFF6FF 0%, #F5F3FF 50%, #FFFFFF 100%);
}
.hero-orb {
  position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: .5;
  animation: float 8s ease-in-out infinite;
}
.hero-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,.25), transparent);
  top: -200px; right: -100px;
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(124,58,237,.2), transparent);
  bottom: -100px; left: -50px;
  animation-delay: -3s;
}
.hero-content {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; gap: 80px;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 100px;
  background: rgba(37,99,235,.08); border: 1px solid rgba(37,99,235,.15);
  color: var(--primary); font-size: .85rem; font-weight: 600;
  margin-bottom: 24px;
}
.hero-eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); animation: pulse-dot 2s infinite; }
.hero-title { margin-bottom: 20px; }
.hero-sub { font-size: 1.15rem; margin-bottom: 36px; max-width: 480px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats {
  display: flex; gap: 32px; flex-wrap: wrap;
}
.hero-stat-value {
  font-size: 1.6rem; font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat-label { font-size: .8rem; color: var(--text-muted); font-weight: 500; }
.hero-image-wrap {
  position: relative;
  animation: float 6s ease-in-out infinite;
}
.hero-image-wrap::before {
  content: '';
  position: absolute; inset: -20px;
  border-radius: 40px;
  background: var(--gradient);
  opacity: .08;
  filter: blur(40px);
}
.hero-image-wrap img {
  border-radius: 32px;
  box-shadow: var(--shadow-xl);
  width: 100%;
}

/* ========================
   SOCIAL PROOF STRIP
======================== */
.social-strip {
  padding: 28px 0;
  background: var(--bg-dark);
  color: white;
}
.social-strip-inner {
  display: flex; align-items: center; justify-content: center;
  gap: 48px; flex-wrap: wrap;
}
.social-item {
  display: flex; align-items: center; gap: 10px;
  font-size: .9rem; color: rgba(255,255,255,.7);
}
.social-item .icon { font-size: 1.4rem; }

/* ========================
   FEATURES (How it Works)
======================== */
.features-header { text-align: center; margin-bottom: 64px; }
.features-header p { max-width: 560px; margin: 16px auto 0; font-size: 1.05rem; }

.how-steps {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 32px; margin-bottom: 80px;
}
.step-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative; overflow: hidden;
  transition: all .3s ease;
}
.step-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient);
  transform: scaleX(0); transform-origin: left;
  transition: transform .4s ease;
}
.step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.step-card:hover::before { transform: scaleX(1); }
.step-number {
  font-size: 4rem; font-weight: 900; line-height: 1;
  background: var(--gradient-soft);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}
.step-title { margin-bottom: 10px; }
.step-desc { font-size: .95rem; }

/* ========================
   BIG FEATURE SECTIONS
======================== */
.feature-block {
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; gap: 80px;
  padding: 80px 0;
  border-bottom: 1px solid var(--border);
}
.feature-block.reverse { direction: rtl; }
.feature-block.reverse > * { direction: ltr; }
.feature-block:last-child { border-bottom: none; }
.feature-block-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.feature-block-image img { width: 100%; }
.feature-block-image::after {
  content: '';
  position: absolute; inset: 0;
  border-radius: var(--radius-xl);
  background: var(--gradient);
  opacity: .05;
}
.feature-label { margin-bottom: 16px; }
.feature-block-title { margin-bottom: 16px; }
.feature-block-desc { font-size: 1.05rem; margin-bottom: 28px; }
.feature-bullets { display: flex; flex-direction: column; gap: 14px; margin-bottom: 32px; }
.feature-bullet {
  display: flex; align-items: flex-start; gap: 12px;
}
.bullet-icon {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--gradient); color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem; flex-shrink: 0; margin-top: 1px;
}
.bullet-text { font-size: .95rem; }
.bullet-text strong { color: var(--text); }

/* ========================
   FEATURE GRID (Tools)
======================== */
.tools-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.tool-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all .3s ease;
  position: relative; overflow: hidden;
}
.tool-card::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient);
  opacity: 0; transition: opacity .3s;
}
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.tool-card:hover::after { opacity: 1; }
.tool-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--gradient-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 20px;
}
.tool-title { margin-bottom: 10px; }
.tool-desc { font-size: .9rem; }

/* ========================
   PRICING
======================== */
.pricing-header { text-align: center; margin-bottom: 56px; }
.pricing-toggle {
  display: flex; align-items: center; justify-content: center;
  gap: 12px; margin-top: 24px;
}
.toggle-label { font-weight: 500; color: var(--text-muted); font-size: .95rem; }
.toggle-label.active { color: var(--primary); font-weight: 600; }

.pricing-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 32px; max-width: 860px; margin: 0 auto;
}
.pricing-card {
  border: 2px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 36px;
  transition: all .3s ease;
  background: var(--bg);
  position: relative; overflow: hidden;
}
.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}
.pricing-card.featured::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--gradient);
}
.pricing-badge {
  position: absolute; top: 24px; right: 24px;
  padding: 4px 12px; border-radius: 100px;
  background: var(--gradient); color: white;
  font-size: .75rem; font-weight: 700;
}
.pricing-plan { font-weight: 600; color: var(--text-muted); margin-bottom: 12px; }
.pricing-price { display: flex; align-items: baseline; gap: 4px; margin-bottom: 6px; }
.price-amount { font-size: 3rem; font-weight: 800; color: var(--text); }
.price-period { color: var(--text-muted); }
.pricing-desc { font-size: .9rem; margin-bottom: 28px; }
.pricing-features { display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }
.pricing-feature {
  display: flex; align-items: center; gap: 10px;
  font-size: .95rem;
}
.pricing-feature .check { color: var(--success); font-size: 1rem; }
.pricing-feature .cross { color: var(--text-light); }

/* ========================
   TESTIMONIALS
======================== */
.testimonials-header { text-align: center; margin-bottom: 56px; }
.testimonials-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testi-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all .3s;
}
.testi-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.testi-stars { color: #F59E0B; margin-bottom: 16px; font-size: 1.1rem; }
.testi-text { font-size: .95rem; color: var(--text); font-style: italic; margin-bottom: 24px; line-height: 1.7; }
.testi-author { display: flex; align-items: center; gap: 12px; }
.testi-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--gradient); color: white;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1rem;
}
.testi-name { font-weight: 600; font-size: .9rem; }
.testi-role { font-size: .8rem; color: var(--text-muted); }

/* ========================
   CTA SECTION
======================== */
.cta-section {
  background: var(--gradient);
  border-radius: 32px;
  padding: 80px 60px;
  text-align: center;
  color: white;
  position: relative; overflow: hidden;
  margin: 60px 0;
}
.cta-section::before {
  content: '';
  position: absolute; top: -80px; right: -80px;
  width: 400px; height: 400px; border-radius: 50%;
  background: rgba(255,255,255,.08);
}
.cta-section::after {
  content: '';
  position: absolute; bottom: -60px; left: -60px;
  width: 300px; height: 300px; border-radius: 50%;
  background: rgba(255,255,255,.06);
}
.cta-section h2 { color: white; margin-bottom: 16px; position: relative; z-index: 1; }
.cta-section p { color: rgba(255,255,255,.8); font-size: 1.1rem; margin-bottom: 36px; position: relative; z-index: 1; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

/* ========================
   FOOTER
======================== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,.7);
  padding: 80px 0 32px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px; margin-bottom: 60px;
}
.footer-brand p { font-size: .9rem; margin-top: 16px; max-width: 280px; }
.footer-col-title {
  font-size: .8rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: rgba(255,255,255,.4);
  margin-bottom: 16px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: .9rem; color: rgba(255,255,255,.6);
  transition: color .2s;
}
.footer-links a:hover { color: white; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 28px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { font-size: .85rem; }
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { font-size: .85rem; color: rgba(255,255,255,.5); transition: color .2s; }
.footer-bottom-links a:hover { color: white; }

/* ========================
   LEGAL PAGES
======================== */
.legal-hero {
  background: var(--gradient);
  padding: 140px 0 80px;
  text-align: center; color: white;
}
.legal-hero h1 { color: white; margin-bottom: 12px; }
.legal-hero p { color: rgba(255,255,255,.8); font-size: 1rem; }
.legal-content {
  max-width: 800px; margin: 0 auto;
  padding: 80px 24px;
}
.legal-content h2 {
  font-size: 1.4rem; margin: 40px 0 12px;
  color: var(--text);
}
.legal-content h3 { font-size: 1.1rem; margin: 28px 0 8px; color: var(--text); }
.legal-content p { color: var(--text-muted); margin-bottom: 16px; }
.legal-content ul { padding-left: 20px; margin-bottom: 16px; }
.legal-content ul li { color: var(--text-muted); margin-bottom: 8px; list-style: disc; }
.legal-content a { color: var(--primary); text-decoration: underline; }

/* ========================
   ANIMATIONS
======================== */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .6; transform: scale(1.2); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

.animate-fade-up    { opacity: 0; animation: fadeInUp .7s ease forwards; }
.animate-fade       { opacity: 0; animation: fadeIn .7s ease forwards; }
.animate-slide-left { opacity: 0; animation: slideInLeft .7s ease forwards; }
.animate-slide-right{ opacity: 0; animation: slideInRight .7s ease forwards; }

.delay-1 { animation-delay: .1s; }
.delay-2 { animation-delay: .2s; }
.delay-3 { animation-delay: .3s; }
.delay-4 { animation-delay: .4s; }
.delay-5 { animation-delay: .5s; }
.delay-6 { animation-delay: .6s; }

/* Scroll-triggered — hidden until JS adds .visible */
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
[data-reveal].visible { opacity: 1; transform: none; }
[data-reveal="left"]  { transform: translateX(-24px); }
[data-reveal="right"] { transform: translateX(24px); }
[data-reveal="left"].visible,
[data-reveal="right"].visible { transform: none; }

/* ========================
   RESPONSIVE
======================== */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; gap: 48px; text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-stats   { justify-content: center; }
  .hero-image-wrap { max-width: 480px; margin: 0 auto; }
  .feature-block { grid-template-columns: 1fr; gap: 40px; }
  .feature-block.reverse { direction: ltr; }
  .how-steps { grid-template-columns: 1fr 1fr; }
  .tools-grid { grid-template-columns: 1fr 1fr; }
  .testimonials-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.8rem; }
  .section { padding: 70px 0; }
  .nav-links { display: none; }
  .burger { display: flex; }
  .nav-cta .btn { display: none; }
  .how-steps { grid-template-columns: 1fr; }
  .tools-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-section { padding: 60px 32px; }
  .social-strip-inner { gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-actions { flex-direction: column; }
  .btn-lg { padding: 16px 24px; }
}

/* ————— Mobile Nav ————— */
.mobile-nav {
  display: none;
  flex-direction: column;
  position: fixed; inset: 0;
  background: rgba(15,23,42,.97);
  backdrop-filter: blur(20px);
  z-index: 999;
  padding: 80px 32px 32px;
  gap: 8px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  color: white; font-size: 1.2rem; font-weight: 600;
  padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,.08);
}
.mobile-close {
  position: absolute; top: 24px; right: 24px;
  background: none; border: none; color: white;
  font-size: 1.8rem; cursor: pointer;
}

/* ————— Section BG Variants ————— */
.bg-alt  { background: var(--bg-alt); }
.bg-dark-section {
  background: var(--bg-dark);
  color: white;
}
.bg-dark-section h2 { color: white; }
.bg-dark-section p { color: rgba(255,255,255,.7); }
.bg-dark-section .tool-card {
  background: rgba(255,255,255,.04);
  border-color: rgba(255,255,255,.08);
}
.bg-dark-section .tool-card:hover {
  background: rgba(255,255,255,.07);
  box-shadow: 0 8px 32px rgba(0,0,0,.3);
}
.bg-dark-section .tool-desc { color: rgba(255,255,255,.6); }
.bg-dark-section .tool-title { color: white; }

/* ————— App Store Badges ————— */
.store-badges { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 8px; }
.store-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 20px; border-radius: 12px;
  background: var(--bg-dark); color: white;
  border: 1px solid rgba(255,255,255,.1);
  transition: all .25s;
}
.store-badge:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.2); }
.store-badge .store-icon { font-size: 1.6rem; }
.store-badge-text { display: flex; flex-direction: column; }
.store-badge-text small { font-size: .65rem; color: rgba(255,255,255,.6); text-transform: uppercase; letter-spacing: .05em; }
.store-badge-text span { font-weight: 700; font-size: .95rem; }

/* ————— CEFR Levels Row ————— */
.cefr-row {
  display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px;
}
.cefr-badge {
  padding: 6px 16px; border-radius: 100px;
  font-size: .85rem; font-weight: 700;
  border: 2px solid transparent;
}
.cefr-a1 { background: #FEF2F2; color: #DC2626; border-color: #FCA5A5; }
.cefr-a2 { background: #FFF7ED; color: #D97706; border-color: #FCD34D; }
.cefr-b1 { background: #FFFBEB; color: #B45309; border-color: #FDE68A; }
.cefr-b2 { background: #ECFDF5; color: #059669; border-color: #6EE7B7; }
.cefr-c1 { background: #EFF6FF; color: #2563EB; border-color: #93C5FD; }
.cefr-c2 { background: #F5F3FF; color: #7C3AED; border-color: #C4B5FD; }