* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--text-primary);
  background:
    radial-gradient(circle at top right, color-mix(in srgb, var(--accent-primary) 22%, transparent) 0%, transparent 45%),
    linear-gradient(180deg, color-mix(in srgb, var(--bg-secondary) 82%, var(--bg-primary) 18%) 0%, var(--bg-secondary) 26%, var(--bg-primary) 100%);
  background-color: var(--bg-primary);
  min-height: 100vh;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.flight-submit {
  padding: clamp(3rem, 6vw, 4.5rem) clamp(1.6rem, 6vw, 3.4rem);
  display: grid;
  gap: clamp(2.4rem, 4vw, 3rem);
  max-width: 1240px;
  margin: 0 auto;
}

.flight-submit__hero {
  display: grid;
  gap: 1.2rem;
  max-width: 720px;
}

.flight-submit__eyebrow {
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0;
}

.flight-submit__title {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  line-height: 1.1;
}

.flight-submit__summary {
  margin: 0;
  max-width: 620px;
  font-size: 1.08rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.flight-submit__meta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 0.6rem;
}

.flight-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: var(--bg-chip);
  color: var(--accent-tertiary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.flight-submit__layout {
  display: grid;
  gap: clamp(2rem, 3vw, 2.6rem);
  grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
  align-items: start;
}

.flight-form {
  background: linear-gradient(130deg, color-mix(in srgb, var(--bg-panel) 92%, transparent) 0%, color-mix(in srgb, var(--bg-elevated) 85%, transparent) 100%);
  border-radius: 28px;
  border: 1px solid var(--border-soft);
  box-shadow: 0 24px 40px var(--shadow-primary);
  padding: clamp(1.8rem, 3vw, 2.4rem);
  display: grid;
  gap: 2.2rem;
}

.flight-section {
  display: grid;
  gap: 1.4rem;
  border-left: 2px solid transparent;
  padding-left: 0.1rem;
  transition: border-color 0.2s ease;
}

.flight-section[data-section-state="complete"] {
  border-color: color-mix(in srgb, var(--accent-primary) 45%, transparent);
}

.flight-section legend {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent-tertiary);
  margin-bottom: 0.4rem;
}

.flight-section p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.flight-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.flight-field {
  display: grid;
  gap: 0.45rem;
}

.flight-field label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.flight-input,
.flight-textarea,
.flight-select {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.flight-input:focus,
.flight-textarea:focus,
.flight-select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-primary) 25%, transparent);
}

.flight-textarea {
  min-height: 120px;
  resize: vertical;
}

.flight-hint {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.4;
}

.flight-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.flight-inline input[type="checkbox"],
.flight-inline input[type="radio"] {
  accent-color: var(--accent-primary);
  width: 18px;
  height: 18px;
}

.flight-toggle-target {
  border-left: 2px solid color-mix(in srgb, var(--accent-primary) 24%, transparent);
  margin-left: 0.8rem;
  padding-left: 1.1rem;
  display: grid;
  gap: 1rem;
}

.flight-toggle-target[hidden] {
  display: none;
}

.flight-addons {
  display: grid;
  gap: 0.9rem;
}

.flight-divider {
  height: 1px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent-tertiary) 14%, transparent) 0%, color-mix(in srgb, var(--accent-tertiary) 32%, transparent) 50%, color-mix(in srgb, var(--accent-tertiary) 14%, transparent) 100%);
  border: none;
}

.flight-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: flex-start;
}

.flight-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  background: transparent;
  color: var(--text-primary);
}

.flight-btn--primary {
  background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
  color: var(--bg-primary);
  box-shadow: 0 18px 36px color-mix(in srgb, var(--accent-primary) 28%, transparent);
}

.flight-btn--ghost {
  border-color: var(--border-soft);
  color: var(--accent-tertiary);
}

.flight-btn:hover,
.flight-btn:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 24px 44px color-mix(in srgb, var(--accent-primary) 32%, transparent);
}

.flight-summary {
  position: sticky;
  top: clamp(1.4rem, 3vw, 2rem);
  display: grid;
  gap: 1.6rem;
}

.flight-card {
  background: linear-gradient(135deg, color-mix(in srgb, var(--bg-panel) 96%, transparent) 0%, color-mix(in srgb, var(--bg-elevated) 85%, transparent) 100%);
  border-radius: 28px;
  border: 1px solid var(--border-soft);
  box-shadow: 0 20px 36px var(--shadow-soft);
  padding: 1.6rem;
  display: grid;
  gap: 1.1rem;
}

.flight-card h2 {
  margin: 0;
  font-size: 1.2rem;
  color: var(--accent-tertiary);
}

.flight-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.flight-summary__stats {
  display: grid;
  gap: 1rem;
}

.flight-stat {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  padding: 0.75rem 1rem;
  border-radius: 18px;
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  border: 1px solid var(--border-soft);
}

.flight-stat span {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.flight-stat strong {
  font-size: 1.05rem;
  color: var(--accent-tertiary);
}

.flight-guidelines {
  display: grid;
  gap: 0.9rem;
  padding: 0;
  margin: 0;
}

.flight-guidelines li {
  list-style: none;
  display: inline-flex;
  gap: 0.75rem;
  align-items: center;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.flight-guidelines li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-tertiary);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent-tertiary) 25%, transparent);
}

.flight-files {
  display: grid;
  gap: 0.6rem;
}

.flight-file-list {
  display: grid;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.flight-tier-badges {
  display: inline-flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.flight-tier-badges span {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-tertiary) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent-tertiary) 36%, transparent);
  color: var(--accent-tertiary);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.flight-feedback {
  margin: 0;
  font-size: 0.82rem;
  color: var(--notify-warning);
  line-height: 1.4;
}

.flight-feedback[hidden] {
  display: none;
}

.flight-progress__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.flight-progress__item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  padding: 0.75rem 1rem;
  border-radius: 18px;
  border: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.flight-progress__item[data-state="complete"] {
  border-color: color-mix(in srgb, var(--accent-primary) 34%, transparent);
  color: var(--accent-primary);
}

.flight-progress__status {
  font-weight: 600;
  font-size: 0.85rem;
}

.flight-dropzone {
  position: relative;
  border: 1px dashed var(--border-soft);
  border-radius: 18px;
  padding: 1.2rem;
  display: grid;
  gap: 0.6rem;
  justify-items: center;
  text-align: center;
  background: color-mix(in srgb, var(--bg-panel) 85%, transparent);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.flight-dropzone button {
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 0.5rem 1.4rem;
  font-weight: 600;
  font-size: 0.88rem;
  background: var(--bg-input);
  color: var(--accent-primary);
  cursor: pointer;
}

.flight-dropzone[data-state="over"] {
  border-color: var(--accent-primary);
  background: color-mix(in srgb, var(--accent-primary) 18%, transparent);
}

.flight-dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.flight-preview {
  display: grid;
  gap: 1.2rem;
  margin-bottom: 2rem;
  padding: 1.4rem;
  border-radius: 22px;
  border: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--bg-elevated) 92%, transparent);
  box-shadow: 0 18px 32px color-mix(in srgb, var(--shadow-primary) 45%, transparent);
}

.flight-preview__media {
  position: relative;
  border-radius: 18px;
  background: color-mix(in srgb, var(--bg-panel) 88%, transparent);
  min-height: 180px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}

.flight-preview__media.has-image {
  background: transparent;
}

.flight-preview__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.flight-preview__content {
  display: grid;
  gap: 0.4rem;
}

.flight-preview__content h2 {
  margin: 0;
  font-size: 1.3rem;
}

.flight-preview__route,
.flight-preview__time,
.flight-preview__description {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.flight-preview__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
}

.flight-preview__stats div {
  border-radius: 16px;
  border: 1px solid var(--border-soft);
  padding: 0.8rem;
  display: grid;
  gap: 0.2rem;
  background: color-mix(in srgb, var(--bg-panel) 94%, transparent);
}

.flight-preview__stats span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.flight-preview__stats strong {
  font-size: 1rem;
}

.flight-media-list {
  list-style: none;
  padding: 0;
  margin: 0.8rem 0 0;
  display: grid;
  gap: 0.4rem;
}

.flight-media-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.8rem;
  border-radius: 14px;
  background: color-mix(in srgb, var(--bg-panel) 92%, transparent);
  border: 1px solid var(--border-soft);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.flight-media-list span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 200px;
}

.flight-media-preview {
  display: grid;
  gap: 0.6rem;
}

.flight-media-preview[hidden] {
  display: none;
}

.flight-media-preview img {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 18px;
  object-fit: cover;
  border: 1px solid var(--border-soft);
}

.flight-media-preview figcaption {
  font-size: 0.85rem;
  color: var(--text-muted);
}

@media (max-width: 1024px) {
  .flight-submit__layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .flight-summary {
    position: static;
  }
}

@media (max-width: 720px) {
  .flight-form {
    padding: 1.5rem;
  }

  .flight-preview__stats {
    grid-template-columns: 1fr;
  }

  .flight-section legend {
    font-size: 1.12rem;
  }

  .flight-chip {
    font-size: 0.78rem;
  }

  .flight-btn {
    width: 100%;
    justify-content: center;
  }

  .flight-actions {
    flex-direction: column;
  }
}

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

  .flight-btn,
  .flight-dropzone {
    transition: none;
  }

  .flight-btn:hover,
  .flight-btn:focus-visible {
    transform: none;
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-primary) 35%, transparent);
  }
}