@font-face {
  font-family: 'LemonMilk';
  src: url('../fonts/LEMONMILK-Bold.woff');
  font-weight: 700;
}

:root {
  --bg: #f7f4f0;
  --text: #1f1c1b;
  --muted: #6d6a67;
  --accent: #f2b5d4;
  --accent-strong: #e49ec5;
  --card: #ffffff;
  --line: rgba(0, 0, 0, 0.08);
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.08);
}

/* Base */
body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(circle at top, #fef4f7 0%, #f7f4f0 48%, #eef0f9 100%);
  color: var(--text);
  min-height: 100vh;
}

.logo, h1, h2 {
  font-family: 'LemonMilk', sans-serif;
  letter-spacing: 1.2px;
}

.logo {
  font-size: 1.3rem;
  text-transform: uppercase;
  font-weight: 700;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  margin: 0 0 12px;
}

h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.6rem);
  margin: 0 0 12px;
}

p {
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  line-height: 1.6;
}

a {
  color: inherit;
}

main {
  max-width: 1100px;
  margin: 0 auto;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 40px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: color 0.3s ease;
}

nav a:hover {
  color: var(--text);
}

/* Hero */
.hero {
  text-align: center;
  padding: 140px 24px 120px;
}

.hero-content {
  max-width: 640px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  line-height: 1.05;
  letter-spacing: 1.6px;
}

.hero-emphasis {
  font-weight: 700;
  text-shadow: 0 2px 6px rgba(31, 28, 27, 0.15);
}

button {
  background: linear-gradient(135deg, #f6c1de, #f7d9b0);
  border: none;
  padding: 16px 28px;
  border-radius: 999px;
  font-size: 1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 46px rgba(0, 0, 0, 0.12);
}

/* Lessons */
.lessons-page {
  padding: 30px 24px 60px;
}

.lessons-hero {
  text-align: center;
  padding: 40px 0 30px;
}

.lesson-tabs {
  background: var(--card);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 30px;
}

.tabs {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 24px;
}

.lesson-tabs input {
  display: none;
}

.tabs label {
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid var(--line);
  cursor: pointer;
  font-size: 0.9rem;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  background: #fff7fb;
}

#tab-free:checked ~ .tabs label[for="tab-free"],
#tab-premium:checked ~ .tabs label[for="tab-premium"] {
  background: linear-gradient(135deg, #f6c1de, #f7d9b0);
  border-color: transparent;
  color: #2b2b2b;
  box-shadow: var(--shadow);
}

.tab-panels {
  display: grid;
  gap: 24px;
}

.tab-panel {
  display: none;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  animation: fadeUp 0.6s ease forwards;
}

#tab-free:checked ~ .tab-panels #panel-free,
#tab-premium:checked ~ .tab-panels #panel-premium {
  display: grid;
}

/* Home tabs */
.feature-tabs {
  padding: 40px 24px 70px;
  display: grid;
  gap: 28px;
}

.feature-tabs-content {
  text-align: center;
  max-width: 620px;
  margin: 0 auto;
}

.feature-tabs-card {
  background: var(--card);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 30px;
}

.feature-tabs input {
  display: none;
}

.tab-copy {
  text-align: center;
  padding: 14px 10px;
}

.tab-copy h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

#tab-price:checked ~ .tab-panels #panel-price,
#tab-quality:checked ~ .tab-panels #panel-quality,
#tab-more:checked ~ .tab-panels #panel-more {
  display: block;
}

.lesson-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 20px;
  border-radius: 20px;
  background: #fff;
  border: 1px solid var(--line);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.lesson-card img {
  width: 70px;
  height: 70px;
  border-radius: 16px;
  object-fit: cover;
  background: #f6f1ee;
}

.lesson-card h3 {
  font-size: 1.05rem;
  margin: 0 0 6px;
}

.lesson-card span {
  color: var(--muted);
  font-size: 0.85rem;
}

.lesson-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.paid {
  filter: blur(1px);
  opacity: 0.75;
}

.paid:hover {
  filter: blur(0);
  opacity: 1;
}

/* About */
.about {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 30px;
  align-items: center;
  padding: 60px 24px 80px;
}

.about-content {
  background: var(--card);
  border-radius: 28px;
  padding: 30px;
  box-shadow: var(--shadow);
}

.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 20px;
}

.about-links a {
  padding: 10px 18px;
  border-radius: 999px;
  background: #f1f6ff;
  text-decoration: none;
  border: 1px solid var(--line);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about-links a:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.about-owners {
  display: grid;
  gap: 16px;
}

.owner-card {
  background: #fff;
  padding: 22px;
  border-radius: 24px;
  border: 1px solid var(--line);
  text-align: center;
  box-shadow: var(--shadow);
}

.owner-card h3 {
  margin: 0 0 6px;
  font-size: 1.2rem;
}

.owner-card span {
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Popup */
.popup {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.3);
  justify-content: center;
  align-items: center;
}

.popup-box {
  background: white;
  padding: 30px;
  border-radius: 16px;
}

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  background: white;
  margin-top: 40px;
}

/* Fade */
.fade {
  opacity: 0;
  transform: translateY(20px);
  transition: 0.8s ease;
}

.fade.show {
  opacity: 1;
  transform: translateY(0);
}
/* HERO GUITAR ANIMATION */
.hero {
  position: relative;
  text-align: center;
  padding: 140px 24px 120px;
  overflow: hidden;
}

.guitar-bg {
  position: absolute;
  bottom: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  opacity: 0;
  animation: riseUp 1.2s ease forwards;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
}

@keyframes riseUp {
  to {
    bottom: 20px;
    opacity: 0.25;
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

html {
  scroll-behavior: smooth;
}

@media (max-width: 600px) {
  .guitar-bg {
    width: 180px;
  }

  header {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
  }

  nav a {
    margin-left: 0;
  }

  .tabs {
    flex-direction: column;
  }
}