*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; }
:root {
  --bg: #ffffff;
  --bg-soft: #f5f5f5;
  --text: #111111;
  --text-soft: #555555;
  --line: #e2e2e2;
  --line-strong: #bdbdbd;
  --black: #000000;
  --white: #ffffff;
  --dur: 550ms;
  --dur-fast: 300ms;
  --ease: cubic-bezier(.22,.61,.36,1);
  --container: 1180px;
  --header-h: 76px;
}
body {
  font-family: "Helvetica Neue", Arial, "Segoe UI", -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--black);
  color: var(--white);
  padding: 12px 20px;
  z-index: 200;
}
.skip-link:focus { left: 16px; top: 16px; }
.reveal { opacity: 1; transform: none; }
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* Intro splash screen */
.intro-splash {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: introFade 3s var(--ease) forwards;
}
.intro-splash.hidden { pointer-events: none; }
.intro-content {
  text-align: center;
}
.intro-logo {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  animation: introScale 1s var(--ease);
}
.intro-text {
  font-size: 1.1rem;
  color: var(--text-soft);
  animation: introFade2 1.5s var(--ease) 0.5s forwards;
  opacity: 0;
}
@keyframes introScale { from { transform: scale(.8); opacity: 0; } to { transform: scale(1); opacity: 1; } }
@keyframes introFade2 { to { opacity: 1; } }
@keyframes introFade { 0% { opacity: 1; } 66% { opacity: 1; } 100% { opacity: 0; pointer-events: none; } }

.page-wrapper { opacity: 0; animation: pageIn 0.6s var(--ease) 2.4s forwards; }
@keyframes pageIn { to { opacity: 1; } }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow var(--dur-fast) var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 8px 24px rgba(0,0,0,.05); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.logo {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.nav-menu {
  display: flex;
  gap: 28px;
}
.nav-menu a {
  font-size: .92rem;
  color: var(--text-soft);
  transition: color var(--dur-fast) var(--ease);
}
.nav-menu a:hover { color: var(--text); }
.header-actions { display: flex; align-items: center; gap: 18px; }
.lang-selector { position: relative; }
.lang-select {
  padding: 6px 8px;
  font-size: .82rem;
  border: 1px solid var(--line-strong);
  background: var(--white);
  color: var(--text);
  cursor: pointer;
  border-radius: 2px;
  transition: border-color var(--dur-fast) var(--ease);
}
.lang-select:hover { border-color: var(--text); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 26px;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: .92rem;
  font-weight: 600;
  border-radius: 2px;
  border: 1px solid var(--black);
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.btn-primary { background: var(--black); color: var(--white); }
.btn-primary:hover { transform: translateY(-2px); background: #2a2a2a; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--black); transform: translateY(-2px); }
.btn-small { padding: 10px 20px; font-size: .85rem; }
.btn-full { width: 100%; }

/* Sections */
.section { padding: 120px 0; }
.section-soft { background: var(--bg-soft); }
.section-intro { padding: 80px 0 40px; }
.section-contact { background: var(--bg-soft); }
.eyebrow {
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-soft);
  margin-bottom: 18px;
}
h1, h2, h3 { letter-spacing: -0.02em; font-weight: 700; }
h1 { font-size: clamp(2.6rem, 6vw, 4rem); line-height: 1.05; margin-bottom: 28px; }
h2 { font-size: clamp(2rem, 4vw, 3rem); max-width: 720px; margin-bottom: 64px; }
h3 { font-size: 1.15rem; margin-bottom: 12px; }
.lead { font-size: 1.1rem; color: var(--text-soft); max-width: 600px; }

/* Hero */
.hero {
  padding: calc(var(--header-h) + 64px) 0 100px;
  position: relative;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 40px;
  min-height: 560px;
}
.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-soft);
  max-width: 480px;
  margin-bottom: 40px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual {
  position: relative;
  height: 100%;
  min-height: 380px;
}
.shape { position: absolute; border-color: var(--line-strong); animation: float 7s var(--ease) infinite alternate; }
.shape-ring {
  width: 260px; height: 260px; border: 1.5px solid var(--line-strong);
  border-radius: 50%; top: 8%; right: 6%;
  animation-duration: 9s;
}
.shape-dot {
  width: 22px; height: 22px; background: var(--black); border-radius: 50%;
  top: 46%; right: 34%; animation-duration: 6s;
}
.shape-line {
  height: 1.5px; background: var(--line-strong); width: 140px;
}
.shape-line-1 { top: 20%; right: 46%; transform: rotate(-18deg); animation-duration: 8s; }
.shape-line-2 { bottom: 22%; right: 10%; width: 90px; animation-duration: 7s; }
.shape-square {
  width: 90px; height: 90px; border: 1.5px solid var(--line-strong);
  bottom: 6%; right: 40%; animation-duration: 10s;
}
@keyframes float {
  from { transform: translate(0, 0) rotate(0deg); }
  to { transform: translate(0, -18px) rotate(3deg); }
}

/* Grid and cards */
.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  border: 1px solid var(--line);
  padding: 36px 28px;
  background: var(--bg);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.card:hover {
  transform: translateY(-6px) scale(1.015);
  box-shadow: 0 24px 48px rgba(0,0,0,.08);
  border-color: var(--line-strong);
}
.card p { color: var(--text-soft); font-size: .95rem; }
.card-plain { padding: 28px; }
.icon { width: 40px; height: 40px; margin-bottom: 24px; display: flex; align-items: center; justify-content: center; }
.icon-circle::before { content: ''; width: 100%; height: 100%; border: 2px solid var(--text); border-radius: 50%; }
.icon-square::before { content: ''; width: 100%; height: 100%; border: 2px solid var(--text); }
.icon-line::before { content: ''; width: 100%; height: 2px; background: var(--text); }
.icon-cross { position: relative; }
.icon-cross::before, .icon-cross::after { content: ''; position: absolute; background: var(--text); }
.icon-cross::before { width: 100%; height: 2px; top: 50%; left: 0; transform: translateY(-50%); }
.icon-cross::after { width: 2px; height: 100%; left: 50%; top: 0; transform: translateX(-50%); }
.card-project { position: relative; }
.card-tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-soft);
  border: 1px solid var(--line-strong);
  padding: 5px 10px;
  margin-bottom: 20px;
}
.tag-list { display: flex; gap: 10px; margin-top: 22px; flex-wrap: wrap; }
.tag-list li {
  font-size: .78rem;
  color: var(--text-soft);
  border-left: 2px solid var(--line-strong);
  padding-left: 8px;
}

/* Timeline */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.timeline-step {
  border-top: 2px solid var(--text);
  padding-top: 24px;
}
.step-number {
  display: block;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--line-strong);
  margin-bottom: 14px;
}
.timeline-step p { color: var(--text-soft); font-size: .95rem; }

/* Contact section */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact-copy h2 { margin-bottom: 20px; }
.contact-copy p:not(.eyebrow) { color: var(--text-soft); max-width: 420px; font-size: 1.05rem; }
.contact-form { background: var(--bg); border: 1px solid var(--line); padding: 36px; }
.form-row { margin-bottom: 20px; }
.form-row label {
  display: block;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-soft);
}
.form-row input, .form-row textarea {
  width: 100%;
  border: none;
  border-bottom: 1.5px solid var(--line-strong);
  padding: 10px 2px;
  font: inherit;
  font-size: .95rem;
  background: transparent;
  color: var(--text);
  transition: border-color var(--dur-fast) var(--ease);
  resize: vertical;
}
.form-row input:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--black);
}
.form-status {
  margin-top: 16px;
  font-size: .9rem;
  color: var(--text-soft);
}

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0; }
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .82rem;
  color: var(--text-soft);
}

/* Calculator page */
.budget-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: start;
}
.packs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.pack-card {
  border: 2px solid var(--line);
  padding: 32px;
  background: var(--bg);
  transition: all var(--dur-fast) var(--ease);
  cursor: pointer;
}
.pack-card:hover {
  border-color: var(--text);
  box-shadow: 0 12px 32px rgba(0,0,0,.08);
}
.pack-card.active {
  border-color: var(--black);
  background: var(--bg-soft);
}
.pack-card.highlight {
  border-color: var(--black);
  box-shadow: 0 0 0 1px var(--black), 0 8px 24px rgba(0,0,0,.12);
}
.pack-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 24px;
}
.pack-header h3 { margin: 0; }
.pack-price {
  font-size: 1.5rem;
  font-weight: 700;
}
.price { font-size: 1.8rem; }
.pack-features { list-style: none; margin: 20px 0; }
.pack-features li {
  font-size: .9rem;
  color: var(--text-soft);
  margin-bottom: 10px;
  padding-left: 20px;
  position: relative;
}
.pack-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--text);
  font-weight: bold;
}
.pack-ideal {
  font-size: .85rem;
  color: var(--text-soft);
  margin: 20px 0;
  font-style: italic;
}
.pack-select { width: 100%; }
.extras-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.extra-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  transition: background var(--dur-fast) var(--ease);
}
.extra-item:hover { background: var(--bg-soft); }
.extra-check { width: 18px; height: 18px; cursor: pointer; }
.extra-label {
  flex: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.extra-price {
  font-weight: 600;
  font-size: .85rem;
  color: var(--text);
}
.extra-info-btn {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid var(--text-soft);
  background: transparent;
  font-size: .75rem;
  color: var(--text-soft);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}
.extra-info-btn:hover {
  border-color: var(--text);
  color: var(--text);
  background: var(--bg-soft);
}
.extra-info {
  margin-top: 8px;
  padding: 8px 12px;
  background: var(--bg-soft);
  border-left: 2px solid var(--line-strong);
  font-size: .85rem;
  color: var(--text-soft);
}
.budget-summary {
  margin-top: 60px;
}
.summary-card {
  border: 1px solid var(--line-strong);
  padding: 32px;
  background: var(--bg-soft);
}
.summary-line {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: .95rem;
}
.summary-value { font-weight: 600; }
.summary-total {
  display: flex;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 2px solid var(--line);
  margin-top: 12px;
  font-size: 1.1rem;
  font-weight: 700;
}
.total-price { color: var(--black); }
.summary-note {
  margin-top: 12px;
  font-size: .75rem;
  color: var(--text-soft);
}

/* Sketches page */
.example-demo {
  border: 1px solid var(--line);
  padding: 40px;
  background: var(--bg);
  border-radius: 4px;
  margin-bottom: 60px;
}
.demo-section {
  margin-bottom: 40px;
}
.demo-section h3 {
  font-size: 1rem;
  margin-bottom: 20px;
  color: var(--text);
}
.yoga-seats {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}
.seat-row {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.seat {
  width: 48px;
  height: 48px;
  border: 2px solid var(--line-strong);
  background: var(--white);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
  font-weight: 600;
}
.seat:hover { border-color: var(--text); }
.seat.active {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}
.seat.reserved {
  cursor: not-allowed;
  opacity: .5;
  color: var(--text-soft);
}
.time-options, .teacher-options, .button-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.time-btn, .teacher-btn, .wizard-option {
  padding: 12px 20px;
  border: 1px solid var(--line-strong);
  background: var(--white);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
  font-size: .9rem;
}
.time-btn:hover, .teacher-btn:hover, .wizard-option:hover {
  border-color: var(--text);
}
.time-btn.active, .teacher-btn.active, .wizard-option.active {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}
.demo-summary {
  background: var(--bg-soft);
  padding: 24px;
  border-radius: 4px;
  margin-top: 32px;
}
.demo-summary h4 {
  font-size: .95rem;
  margin-bottom: 16px;
}
.demo-summary p {
  font-size: .9rem;
  margin-bottom: 8px;
}
.academia-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: .9rem; font-weight: 600; }
.form-input {
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  background: var(--white);
  font-size: .9rem;
  transition: border-color var(--dur-fast) var(--ease);
}
.form-input:focus { outline: none; border-color: var(--black); }
.checkbox-group { display: flex; flex-direction: column; gap: 10px; }
.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  font-size: .9rem;
  cursor: pointer;
}
.checkbox-group input { width: 16px; height: 16px; }
.academia-summary {
  background: var(--bg-soft);
  padding: 24px;
  border-radius: 4px;
  text-align: center;
}
.wizard {
  position: relative;
}
.wizard-step {
  display: none;
}
.wizard-step.active { display: block; }
.wizard-nav {
  display: flex;
  gap: 12px;
  margin-top: 32px;
  justify-content: space-between;
}
.wizard-prev:disabled, .wizard-next:disabled {
  opacity: .5;
  cursor: not-allowed;
}
.wizard-prev[hidden], .wizard-next[hidden] { display: none; }
.budget-result {
  background: var(--bg-soft);
  padding: 24px;
  text-align: center;
  border-radius: 4px;
}
.budget-value {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 12px 0;
}
.budget-note {
  font-size: .85rem;
  color: var(--text-soft);
  margin-bottom: 20px;
}
.tools-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.tool-card {
  border: 1px solid var(--line);
  padding: 28px;
  background: var(--bg);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(0,0,0,.08);
}
.tool-demo {
  margin-top: 16px;
  padding: 16px;
  background: var(--bg-soft);
  border-radius: 4px;
}
.tool-result {
  margin-top: 12px;
  font-size: .9rem;
  color: var(--text);
  font-weight: 600;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { opacity: .7; }
  .budget-layout { grid-template-columns: 1fr; gap: 40px; }
  .packs-grid { grid-template-columns: 1fr; }
  .tools-grid { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .contact-inner { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-menu {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--dur) var(--ease);
  }
  .nav-menu.is-open { max-height: 400px; }
  .nav-menu a { padding: 16px 32px; border-top: 1px solid var(--line); display: block; }
  .nav-toggle { display: flex; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .section { padding: 80px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .packs-grid { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .container { padding: 0 22px; }
  .seat-row { gap: 8px; }
  .seat { width: 40px; height: 40px; font-size: .85rem; }
  .time-options, .teacher-options, .button-group { gap: 8px; }
  .time-btn, .teacher-btn, .wizard-option { padding: 10px 16px; font-size: .85rem; }
  .example-demo { padding: 24px; }
  .demo-summary { padding: 20px; }
}