:root {
  --red: #d92027;
  --red-dark: #b91a20;
  --ink: #1a1a1a;
  --ink-soft: #4a4a4a;
  --muted: #6b7280;
  --line: #d9dce3;
  --line-strong: #c5cad3;
  --surface: #ffffff;
  --page: #f3f4f6;
  --map-tint: #e8eaee;
  --radius: 10px;
  --shadow: 0 18px 50px rgba(26, 26, 26, 0.08);
  --font: "Manrope", "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(217, 32, 39, 0.05), transparent 55%),
    linear-gradient(180deg, #fafafa 0%, var(--page) 100%);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  text-decoration: underline;
}

.page {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 2.5rem;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  background: #000;
  border-radius: 10px;
  padding: 0.35rem 0.55rem;
}

.brand-logo {
  width: min(150px, 42vw);
  height: auto;
  object-fit: contain;
}

.header-tagline {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 1.75rem;
  align-items: start;
}

.flyer-panel {
  position: sticky;
  top: 1rem;
  background: var(--surface);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.flyer-image {
  width: 100%;
  height: auto;
  display: block;
}

.event-meta {
  display: none;
  gap: 0.75rem;
  padding: 1rem 1.1rem 1.2rem;
  border-top: 1px solid var(--line);
  background: #fff;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.meta-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.meta-item strong {
  font-size: 0.92rem;
  color: var(--ink);
}

.form-panel {
  background: var(--surface);
  border-radius: 16px;
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: var(--shadow);
}

.form-intro h1 {
  margin: 0 0 0.4rem;
  font-size: clamp(1.45rem, 2.5vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.form-intro p {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 0.98rem;
}

.registration-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field label,
.qualities-fieldset legend {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink);
}

.field label span,
.qualities-fieldset legend span {
  color: var(--red);
}

.field input,
.field select {
  width: 100%;
  min-height: 46px;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(217, 32, 39, 0.12);
}

.field input.is-invalid,
.field select.is-invalid {
  border-color: var(--red);
}

.qualities-fieldset {
  margin: 0.35rem 0 0;
  padding: 1rem 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fafbfc;
}

.qualities-fieldset legend {
  padding: 0 0.35rem;
  float: left;
  width: 100%;
  margin-bottom: 0.35rem;
}

.qualities-fieldset::after {
  content: "";
  display: block;
  clear: both;
}

.hint {
  margin: 0 0 0.85rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.qualities-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem 0.75rem;
}

.check-option {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  min-height: 44px;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.check-option:hover {
  border-color: var(--line-strong);
}

.check-option:has(input:checked) {
  border-color: var(--red);
  background: rgba(217, 32, 39, 0.05);
  color: var(--ink);
}

.check-option input {
  margin-top: 0.15rem;
  width: 1rem;
  height: 1rem;
  accent-color: var(--red);
  flex-shrink: 0;
}

.field-error {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--red);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.35rem;
}

.submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 48px;
  padding: 0.85rem 1.4rem;
  border: none;
  border-radius: 10px;
  background: var(--red);
  color: #fff;
  font: inherit;
  font-size: 0.98rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease;
}

.submit-btn:hover {
  background: var(--red-dark);
}

.submit-btn:active {
  transform: translateY(1px);
}

.submit-btn:focus-visible {
  outline: 3px solid rgba(217, 32, 39, 0.35);
  outline-offset: 2px;
}

.submit-btn .arrow {
  font-size: 1.1rem;
  line-height: 1;
  transition: transform 0.2s ease;
}

.submit-btn:hover .arrow {
  transform: translateX(3px);
}

.form-status {
  margin: 0 0 1rem;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 600;
}

.form-status.is-success {
  background: #ecfdf3;
  color: #067647;
}

.form-status.is-error {
  background: #fef3f2;
  color: #b42318;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer p {
  margin: 0;
}

.is-hidden {
  display: none !important;
}

@media (max-width: 960px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .flyer-panel {
    position: static;
  }

  .flyer-image {
    /* max-height: 420px; */
    width: 100%;
    object-fit: cover;
    object-position: top center;
  }

  .event-meta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 1.25rem, 1180px);
    padding-top: 1rem;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .field-grid,
  .qualities-grid,
  .event-meta {
    grid-template-columns: 1fr;
  }

  .form-panel {
    padding: 1.15rem;
  }

  .form-actions {
    justify-content: stretch;
  }

  .submit-btn {
    width: 100%;
  }

  .flyer-image {
    /* max-height: 280px; */
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .submit-btn,
  .submit-btn .arrow,
  .field input,
  .field select,
  .check-option {
    transition: none;
  }
}