/* =============================================
   STRUMORA - Main CSS
   Vanilla CSS, no frameworks
   ============================================= */

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

:root {
  --primary: #FF8243;
  --accent: #F80000;
  --highlight: #FF7A5C;
  --dark: #0d0d0d;
  --dark2: #141414;
  --dark3: #1a1a1a;
  --dark4: #222222;
  --text: #f0ece4;
  --text-muted: #9e9e9e;
  --text-dim: #ccb99a;
  --border: rgba(255, 130, 67, 0.18);
  --glow: rgba(255, 130, 67, 0.35);
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 32px rgba(0,0,0,0.5);
  --font-main: 'Montserrat', 'Segoe UI', sans-serif;
  --font-heading: 'Oswald', 'Impact', sans-serif;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--dark);
  color: var(--text);
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(255,130,67,0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 10%, rgba(248,0,0,0.03) 0%, transparent 50%);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover { color: var(--highlight); }

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

ul { list-style: none; }

button {
  cursor: pointer;
  font-family: var(--font-main);
  border: none;
  background: none;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  line-height: 1.15;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 { font-size: clamp(2rem, 5vw, 4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); }

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.75rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid rgba(255,130,67,0.3);
  border-radius: 999px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  opacity: 0;
  transition: opacity 0.2s;
}

.btn:hover::after { opacity: 1; }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--highlight));
  color: #fff;
  box-shadow: 0 4px 20px rgba(255,130,67,0.4);
}

.btn-primary:hover {
  box-shadow: 0 6px 30px rgba(255,130,67,0.6);
  transform: translateY(-2px);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: rgba(255,130,67,0.1);
  transform: translateY(-2px);
  color: var(--primary);
}

.btn-ghost {
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  color: var(--primary);
}

/* ---------- Layout ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
  position: relative;
}

.section-alt {
  background: var(--dark2);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all var(--transition);
  padding: 1rem 0;
}

.header.scrolled {
  background: rgba(13,13,13,0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 0;
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-size: 1.7rem;
  letter-spacing: 0.1em;
  color: var(--text);
  text-transform: uppercase;
}

.logo-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

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

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition);
}

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

.nav-link:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 0.5rem 1.2rem;
  background: linear-gradient(135deg, var(--primary), var(--highlight));
  color: #fff;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all var(--transition);
  box-shadow: 0 2px 12px rgba(255,130,67,0.35);
}

.nav-cta:hover {
  box-shadow: 0 4px 20px rgba(255,130,67,0.55);
  transform: translateY(-1px);
  color: #fff;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(13,13,13,0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 2rem;
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile .nav-link {
  font-size: 1.5rem;
}

.nav-mobile-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  color: var(--text);
  font-size: 1.8rem;
  background: none;
  border: none;
  cursor: pointer;
}

/* ---------- BLOCK 1: HERO (topic) ---------- */
.topic {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.topic-image-half {
  position: relative;
  height: 58vh;
  min-height: 350px;
  overflow: hidden;
}

.topic-image-half img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  animation: heroImageReveal 1.2s ease-out forwards;
}

@keyframes heroImageReveal {
  from { transform: scale(1.12); opacity: 0; }
  to { transform: scale(1.05); opacity: 1; }
}

.topic-image-half::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(13,13,13,0.2) 0%, rgba(13,13,13,0.7) 100%);
}

.topic-diagonal {
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 120px;
  z-index: 2;
}

.topic-diagonal svg {
  width: 100%;
  height: 100%;
}

.topic-bottom {
  background: var(--dark);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  flex: 1;
}

.topic-greeting {
  padding: 3rem 4rem 3rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--border);
}

.topic-greeting .section-label {
  animation: fadeSlideUp 0.8s 0.3s both;
}

.topic-greeting h1 {
  animation: fadeSlideUp 0.8s 0.5s both;
  margin: 0.5rem 0 1rem;
}

.topic-greeting h1 span {
  color: var(--primary);
  display: block;
}

.topic-greeting p {
  color: var(--text-muted);
  animation: fadeSlideUp 0.8s 0.7s both;
  max-width: 420px;
}

.topic-form-area {
  padding: 3rem 2rem 3rem 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: rgba(255,130,67,0.03);
}

.topic-form-area h3 {
  margin-bottom: 0.4rem;
  animation: fadeSlideUp 0.8s 0.6s both;
}

.topic-form-area p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  animation: fadeSlideUp 0.8s 0.7s both;
}

/* ---------- Forms ---------- */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: all var(--transition);
  outline: none;
}

.form-control::placeholder {
  color: rgba(255,255,255,0.25);
}

.form-control:focus {
  border-color: var(--primary);
  background: rgba(255,130,67,0.06);
  box-shadow: 0 0 0 3px rgba(255,130,67,0.12);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23FF8243' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  cursor: pointer;
}

select.form-control option {
  background: var(--dark2);
  color: var(--text);
}

/* ---------- Cards ---------- */
.card {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}

.card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 40px rgba(255,130,67,0.2);
}

.card-body {
  padding: 1.5rem;
}

.card-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* ---------- Dividers & Decorations ---------- */
.neon-line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  margin: 1rem 0;
}

.neon-line.center {
  margin: 1rem auto;
}

.section-head {
  text-align: center;
  margin-bottom: 3rem;
}

.section-head h2 {
  margin-bottom: 0.5rem;
}

.section-head p {
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* ---------- BLOCK 2: SLIDER ---------- */
.slider-block {
  background: var(--dark2);
}

.slider-container {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.slider-track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide {
  min-width: 100%;
  position: relative;
}

.slide-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 480px;
}

.slide-image {
  position: relative;
  overflow: hidden;
}

.slide-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.slide:hover .slide-image img {
  transform: scale(1.04);
}

.slide-content {
  padding: 3.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--dark3);
}

.slide-number {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.2em;
  margin-bottom: 0.5rem;
}

.slide-content h3 {
  margin: 0.5rem 0 1rem;
  font-size: 1.8rem;
}

.slide-content p {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.slide-features {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.slide-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.slide-feature::before {
  content: '♪';
  color: var(--primary);
  font-size: 0.8rem;
}

.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.slider-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--dark3);
  color: var(--text);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
}

.slider-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(255,130,67,0.1);
}

.slider-dots {
  display: flex;
  gap: 0.5rem;
}

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}

.slider-dot.active {
  background: var(--primary);
  width: 24px;
  border-radius: 4px;
}

/* ---------- BLOCK 3: ACCORDION ---------- */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.accordion-item {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}

.accordion-item.open {
  border-color: var(--primary);
}

.accordion-header {
  width: 100%;
  padding: 1.4rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  background: none;
  color: var(--text);
  font-weight: 700;
  font-size: 1rem;
  text-align: left;
  transition: color var(--transition);
  gap: 1rem;
}

.accordion-header:hover {
  color: var(--primary);
}

.accordion-item.open .accordion-header {
  color: var(--primary);
}

.accordion-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid currentColor;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: transform var(--transition);
}

.accordion-item.open .accordion-icon {
  transform: rotate(45deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-body-inner {
  padding: 0 1.5rem 1.5rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.accordion-body-inner ul {
  margin-top: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.accordion-body-inner li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.accordion-body-inner li::before {
  content: '→';
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 0.1rem;
}

/* ---------- BLOCK 4: ABOUT CIRCULAR ---------- */
.about-block {
  background: var(--dark);
}

.about-circle-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4rem;
  flex-wrap: wrap;
}

.about-center {
  position: relative;
  width: 320px;
  height: 320px;
  flex-shrink: 0;
}

.about-center-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--primary);
  box-shadow:
    0 0 0 8px rgba(255,130,67,0.12),
    0 0 0 16px rgba(255,130,67,0.05),
    0 0 60px rgba(255,130,67,0.25);
}

.about-ring {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  border: 1px dashed rgba(255,130,67,0.35);
  animation: rotateSlow 20s linear infinite;
}

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.about-ring-dot {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
}

.about-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 420px;
}

.about-stat {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.about-stat:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 20px rgba(255,130,67,0.15);
}

.about-stat-icon {
  font-size: 1.8rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,130,67,0.12);
  border-radius: 10px;
  flex-shrink: 0;
}

.about-stat-value {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--primary);
  line-height: 1;
}

.about-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* ---------- BLOCK 5: TABLE ---------- */
.table-block {
  background: var(--dark2);
}

.schedule-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.schedule-table thead {
  background: linear-gradient(135deg, rgba(255,130,67,0.2), rgba(248,0,0,0.1));
}

.schedule-table th {
  padding: 1.2rem 1.5rem;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--primary);
  border-bottom: 2px solid var(--border);
}

.schedule-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.schedule-table tbody tr:hover {
  background: rgba(255,130,67,0.06);
}

.schedule-table td {
  padding: 1rem 1.5rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(255,130,67,0.08);
}

.schedule-table td:first-child {
  color: var(--text);
  font-weight: 600;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.badge-beginner {
  background: rgba(255,130,67,0.15);
  color: var(--primary);
  border: 1px solid rgba(255,130,67,0.3);
}

.badge-medium {
  background: rgba(248,0,0,0.12);
  color: #ff6b6b;
  border: 1px solid rgba(248,0,0,0.25);
}

.badge-all {
  background: rgba(255,122,92,0.12);
  color: var(--highlight);
  border: 1px solid rgba(255,122,92,0.25);
}

/* ---------- BLOCK 6: PRICING ---------- */
.pricing-block {
  background: var(--dark);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.price-card {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.price-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

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

.price-card:hover {
  border-color: var(--primary);
  transform: translateY(-6px);
  box-shadow: 0 12px 50px rgba(255,130,67,0.2);
}

.price-card.featured {
  border-color: var(--primary);
  background: linear-gradient(135deg, rgba(255,130,67,0.08), rgba(248,0,0,0.04));
}

.price-card.featured::before {
  opacity: 1;
}

.price-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
}

.price-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.price-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.price-value {
  display: flex;
  align-items: baseline;
  gap: 0.2rem;
  margin-bottom: 0.5rem;
}

.price-currency {
  font-size: 1.2rem;
  color: var(--primary);
  font-weight: 700;
}

.price-amount {
  font-family: var(--font-heading);
  font-size: 3rem;
  color: var(--text);
  line-height: 1;
}

.price-period {
  font-size: 0.85rem;
  color: var(--text-muted);
  align-self: flex-end;
  margin-bottom: 0.3rem;
}

.price-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.price-features {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  flex: 1;
  margin-bottom: 1.5rem;
}

.price-feature {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.price-feature-check {
  color: var(--primary);
  flex-shrink: 0;
  font-weight: 700;
}

/* ---------- BLOCK 7: CALCULATOR ---------- */
.calc-block {
  background: var(--dark2);
}

.calc-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.calc-controls {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.calc-result-area {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.range-group {
  margin-bottom: 1.5rem;
}

.range-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.range-label span:first-child {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
}

.range-value {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--primary);
}

input[type="range"] {
  width: 100%;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--border);
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--highlight));
  cursor: pointer;
  box-shadow: 0 0 8px rgba(255,130,67,0.5);
  transition: transform 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.calc-result-value {
  text-align: center;
}

.calc-result-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.calc-amount {
  font-family: var(--font-heading);
  font-size: 4rem;
  color: var(--primary);
  text-shadow: 0 0 30px rgba(255,130,67,0.4);
  line-height: 1;
}

.calc-unit {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.calc-breakdown {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.calc-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  font-size: 0.9rem;
}

.calc-row span:first-child {
  color: var(--text-muted);
}

.calc-row span:last-child {
  color: var(--text);
  font-weight: 600;
}

.calc-saving {
  background: rgba(255,130,67,0.1);
  border: 1px solid rgba(255,130,67,0.25);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 600;
}

/* ---------- BLOCK 8: SELLING TEXT ---------- */
.selling-block {
  background: linear-gradient(135deg, var(--dark) 0%, rgba(255,130,67,0.05) 50%, var(--dark) 100%);
  position: relative;
  overflow: hidden;
}

.selling-block::before {
  content: '♪';
  position: absolute;
  top: -0.5em;
  left: 5%;
  font-size: 20rem;
  opacity: 0.025;
  color: var(--primary);
  font-family: serif;
  pointer-events: none;
  transform: rotate(-10deg);
}

.selling-block::after {
  content: '♫';
  position: absolute;
  bottom: -0.3em;
  right: 5%;
  font-size: 15rem;
  opacity: 0.025;
  color: var(--accent);
  pointer-events: none;
  transform: rotate(10deg);
}

.selling-inner {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.selling-inner .section-label {
  margin-bottom: 1rem;
}

.selling-inner h2 {
  margin-bottom: 1.5rem;
}

.selling-text {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 1.5rem;
}

.selling-text strong {
  color: var(--text);
  font-weight: 700;
}

.selling-highlights {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 2.5rem 0;
}

.selling-highlight {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 140px;
  transition: all var(--transition);
}

.selling-highlight:hover {
  border-color: var(--primary);
  background: rgba(255,130,67,0.06);
}

.selling-highlight-icon {
  font-size: 2rem;
}

.selling-highlight-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
}

/* ---------- BLOCK 9: INFOGRAPHIC ---------- */
.infographic-block {
  background: var(--dark);
}

.infographic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.infographic-item {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.infographic-item::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.infographic-item:hover::before {
  transform: scaleX(1);
}

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

.infographic-num {
  font-family: var(--font-heading);
  font-size: 3rem;
  color: var(--primary);
  line-height: 1;
  text-shadow: 0 0 20px rgba(255,130,67,0.3);
}

.infographic-unit {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 600;
}

.infographic-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.infographic-title {
  font-weight: 700;
  margin: 0.5rem 0 0.4rem;
  font-size: 1rem;
  color: var(--text);
}

.infographic-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.progress-chart {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.progress-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

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

.progress-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
}

.progress-percent {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--primary);
}

.progress-bar-outer {
  height: 8px;
  background: rgba(255,255,255,0.06);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-inner {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), var(--highlight));
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0;
  box-shadow: 0 0 12px rgba(255,130,67,0.3);
}

/* ---------- TESTIMONIALS ---------- */
.testimonials-block {
  background: var(--dark2);
}

.testimonials-track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all var(--transition);
}

.testimonial-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 40px rgba(255,130,67,0.15);
}

.testimonial-stars {
  color: var(--primary);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
  font-style: italic;
  flex: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.testimonial-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary);
}

.testimonial-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---------- CHORD EXPLORER ---------- */
.chord-block {
  background: var(--dark);
}

.chord-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.chord-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.chord-btn {
  padding: 0.6rem 1.2rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--dark3);
  color: var(--text-muted);
  font-weight: 700;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-heading);
  letter-spacing: 0.05em;
}

.chord-btn:hover,
.chord-btn.active {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(255,130,67,0.1);
}

.chord-display {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.chord-display-name {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.chord-display-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

/* Guitar Fretboard SVG Styles */
.fretboard-svg {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  display: block;
}

.chord-info {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.chord-info-title {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.chord-info-steps {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.chord-step {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.chord-step-num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(255,130,67,0.15);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ---------- JAM SESSION ---------- */
.jam-block {
  background: var(--dark2);
}

.jam-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.jam-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  group: true;
}

.jam-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  transition: transform 0.5s ease;
  display: block;
}

.jam-card:hover .jam-card-img {
  transform: scale(1.06);
}

.jam-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.2) 60%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 1.5rem;
  transition: all var(--transition);
}

.jam-card:hover .jam-card-overlay {
  background: linear-gradient(to top, rgba(255,130,67,0.4) 0%, rgba(0,0,0,0.4) 100%);
}

.jam-play-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255,130,67,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  transition: all var(--transition);
  box-shadow: 0 0 20px rgba(255,130,67,0.5);
}

.jam-card:hover .jam-play-icon {
  transform: scale(1.15);
  background: var(--primary);
}

.jam-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.05em;
  text-align: center;
}

.jam-desc {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.7);
  text-align: center;
  margin-top: 0.3rem;
}

/* ---------- GALLERY ---------- */
.gallery-block {
  background: var(--dark);
}

.gallery-masonry {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto;
  gap: 1rem;
}

.gallery-item {
  overflow: hidden;
  border-radius: var(--radius);
  position: relative;
  cursor: pointer;
}

.gallery-item:nth-child(1) { grid-column: span 2; grid-row: span 2; }
.gallery-item:nth-child(4) { grid-column: span 2; }
.gallery-item:nth-child(7) { grid-column: span 2; }
.gallery-item:nth-child(10) { grid-column: span 2; }

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
  min-height: 200px;
}

.gallery-item:hover img {
  transform: scale(1.07);
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,130,67,0);
  transition: background 0.3s;
}

.gallery-item:hover::after {
  background: rgba(255,130,67,0.1);
}

/* ---------- INTERACTIVE STYLE CARDS ---------- */
.style-block {
  background: var(--dark2);
}

.style-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.style-card {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.style-card:hover {
  border-color: var(--primary);
  transform: translateY(-6px);
  box-shadow: 0 12px 50px rgba(255,130,67,0.2);
}

.style-card-img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.style-card:hover .style-card-img {
  transform: scale(1.06);
}

.style-card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.style-card-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.style-card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 1rem;
}

/* ---------- MODAL ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-width: 540px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  animation: modalSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalSlideIn {
  from { opacity: 0; transform: scale(0.92) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  padding: 1.5rem 1.5rem 1rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
}

.modal-icon {
  font-size: 2rem;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,130,67,0.12);
  border-radius: 10px;
  flex-shrink: 0;
}

.modal-title {
  flex: 1;
}

.modal-title h3 {
  font-size: 1.3rem;
  text-transform: uppercase;
}

.modal-title p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.4rem;
  line-height: 1.6;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
  transition: color var(--transition);
}

.modal-close:hover {
  color: var(--primary);
}

.modal-body {
  padding: 1.5rem;
}

.modal-plans {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.plan-radio {
  position: relative;
}

.plan-radio input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.plan-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.8rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.plan-radio input:checked + .plan-label {
  border-color: var(--primary);
  background: rgba(255,130,67,0.1);
}

.plan-label-name {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text);
}

.plan-label-price {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--primary);
}

/* ---------- COOKIE BANNER ---------- */
.cookie-banner {
  position: fixed;
  bottom: -100%;
  left: 0;
  right: 0;
  z-index: 3000;
  padding: 1.25rem;
  transition: bottom 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.cookie-banner.show {
  bottom: 0;
}

.cookie-inner {
  max-width: 1100px;
  margin: 0 auto;
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  box-shadow: 0 -8px 40px rgba(0,0,0,0.5);
}

.cookie-text {
  flex: 1;
  font-size: 0.9rem;
  color: var(--text-muted);
  min-width: 200px;
}

.cookie-text a {
  color: var(--primary);
}

.cookie-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  flex-shrink: 0;
}

.cookie-btn {
  padding: 0.55rem 1.1rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  white-space: nowrap;
}

.cookie-btn-accept {
  background: linear-gradient(135deg, var(--primary), var(--highlight));
  color: #fff;
}

.cookie-btn-accept:hover {
  box-shadow: 0 4px 16px rgba(255,130,67,0.4);
}

.cookie-btn-necessary {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.cookie-btn-necessary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.cookie-btn-settings {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.cookie-btn-settings:hover {
  border-color: rgba(255,255,255,0.3);
  color: var(--text);
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--dark2);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 1rem 0;
  max-width: 280px;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-legal {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-legal-links {
  display: flex;
  gap: 1.5rem;
}

.footer-legal-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-legal-links a:hover {
  color: var(--primary);
}

/* ---------- Animations ---------- */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }

/* ---------- Page-specific styles ---------- */
.page-hero {
  padding: 8rem 0 4rem;
  text-align: center;
  background: linear-gradient(180deg, rgba(255,130,67,0.06) 0%, transparent 100%);
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
}

.page-content {
  padding: 4rem 0;
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
  color: var(--text-muted);
  line-height: 1.9;
}

.legal-content h2 {
  color: var(--text);
  font-size: 1.3rem;
  text-transform: none;
  letter-spacing: 0;
  margin: 2.5rem 0 1rem;
}

.legal-content h2:first-of-type {
  margin-top: 0;
}

.legal-content p, .legal-content li {
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.legal-content ul {
  padding-left: 1.5rem;
  list-style: disc;
}

.legal-content a {
  color: var(--primary);
}

/* Thanks page */
.thanks-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.thanks-content {
  max-width: 560px;
}

.thanks-icon {
  font-size: 5rem;
  margin-bottom: 1.5rem;
  animation: bounceIn 0.8s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

@keyframes bounceIn {
  0% { transform: scale(0.5); opacity: 0; }
  60% { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(1); }
}

.thanks-content h1 {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.thanks-content p {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

/* Scroll to top */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--highlight));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  border: none;
  box-shadow: 0 4px 20px rgba(255,130,67,0.4);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition);
  z-index: 999;
}

.scroll-top.show {
  opacity: 1;
  pointer-events: all;
}

.scroll-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255,130,67,0.55);
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 900px) {
  .nav { display: none; }
  .hamburger { display: flex; }
  .topic-bottom { grid-template-columns: 1fr; }
  .topic-greeting { border-right: none; border-bottom: 1px solid var(--border); padding: 2rem; }
  .topic-form-area { padding: 2rem; }
  .slide-inner { grid-template-columns: 1fr; }
  .slide-image { height: 240px; }
  .grid-2 { grid-template-columns: 1fr; }
  .calc-wrap { grid-template-columns: 1fr; }
  .infographic-grid { grid-template-columns: repeat(2, 1fr); }
  .about-center { width: 250px; height: 250px; }
  .chord-wrap { grid-template-columns: 1fr; }
  .jam-grid { grid-template-columns: 1fr 1fr; }
  .testimonials-track { grid-template-columns: 1fr 1fr; }
  .style-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .section { padding: 3.5rem 0; }
  .grid-3 { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .gallery-masonry {
    grid-template-columns: repeat(2, 1fr);
  }
  .gallery-item:nth-child(1) { grid-column: span 2; grid-row: span 1; }
  .gallery-item:nth-child(4) { grid-column: span 1; }
  .gallery-item:nth-child(7) { grid-column: span 1; }
  .gallery-item:nth-child(10) { grid-column: span 2; }
  .infographic-grid { grid-template-columns: 1fr; }
  .progress-chart { grid-template-columns: 1fr; }
  .testimonials-track { grid-template-columns: 1fr; }
  .jam-grid { grid-template-columns: 1fr; }
  .style-grid { grid-template-columns: 1fr; }
  .modal-plans { grid-template-columns: 1fr 1fr; }
  .about-circle-wrap { gap: 2rem; }
  .about-center { width: 200px; height: 200px; }
}

/* Hidden utility */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}