:root {
  color-scheme: light;
  font-family: "Manrope", "Avenir Next", "Segoe UI", sans-serif;
  --bg: #eef4ff;
  --bg-soft: #f8fbff;
  --ink: #1a2147;
  --muted: #6c7499;
  --line: rgba(88, 99, 160, 0.16);
  --line-strong: rgba(82, 97, 180, 0.28);
  --primary: #4b6bff;
  --secondary: #27c6a4;
  --accent: #ffbf4d;
  --panel: rgba(255, 255, 255, 0.86);
  --shadow: 0 28px 60px rgba(83, 97, 181, 0.12);
  --shadow-soft: 0 16px 34px rgba(83, 97, 181, 0.08);
}

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

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(39, 198, 164, 0.12), transparent 26%),
    radial-gradient(circle at 100% 0, rgba(75, 107, 255, 0.14), transparent 28%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  pointer-events: none;
  filter: blur(24px);
  opacity: 0.7;
}

body::before {
  width: 280px;
  height: 280px;
  left: -40px;
  bottom: 14%;
  border-radius: 50%;
  background: rgba(39, 198, 164, 0.18);
}

body::after {
  width: 320px;
  height: 320px;
  right: -40px;
  top: 10%;
  border-radius: 44% 56% 64% 36% / 38% 42% 58% 62%;
  background: rgba(75, 107, 255, 0.14);
}

.constructor-page {
  position: relative;
  z-index: 1;
  width: min(1480px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.constructor-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(390px, 450px);
  gap: 24px;
  align-items: start;
}

.constructor-main {
  display: grid;
  gap: 22px;
  min-width: 0;
}

.constructor-preview-column {
  position: sticky;
  top: 16px;
  align-self: start;
}

.hero,
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  padding: 28px;
  border-radius: 30px;
}

.hero h1,
.section-head h2 {
  margin: 0;
  font-family: "Space Grotesk", "Avenir Next", sans-serif;
  letter-spacing: -0.04em;
}

.hero h1 {
  font-size: clamp(2.4rem, 4.4vw, 4.1rem);
  line-height: 0.95;
}

.hero__text {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.68;
}

.hero__meta {
  display: grid;
  gap: 12px;
  min-width: min(100%, 320px);
}

.meta-card,
.summary-card {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
}

.meta-card strong,
.summary-card strong {
  font-size: 0.98rem;
}

.meta-card span,
.summary-card span {
  color: var(--muted);
  font-size: 0.92rem;
}

.card {
  padding: 22px;
  border-radius: 28px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}

.section-head h2 {
  font-size: clamp(1.45rem, 2.4vw, 2.1rem);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.roadmap-list {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.64;
}

.workspace {
  display: grid;
  gap: 22px;
}

.template-picker {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.template-card {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.75);
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.template-card:hover {
  transform: translateY(-1px);
  border-color: var(--line-strong);
}

.template-card.is-active {
  border-color: rgba(75, 107, 255, 0.34);
  box-shadow: 0 12px 26px rgba(75, 107, 255, 0.12);
}

.template-card__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(75, 107, 255, 0.1);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
}

.template-card__title {
  margin: 0;
  font-size: 1.12rem;
}

.template-card__text {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.template-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.actions--tight {
  gap: 8px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 16px;
  border: 0;
  border-radius: 15px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary) 78%, var(--secondary)));
  box-shadow: 0 14px 24px rgba(75, 107, 255, 0.18);
  font: 800 0.94rem/1 "Manrope", sans-serif;
  cursor: pointer;
  transition:
    transform 180ms ease,
    opacity 180ms ease,
    box-shadow 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:disabled {
  opacity: 0.56;
  cursor: not-allowed;
  transform: none;
}

.button--ghost {
  color: var(--ink);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: none;
}

.button--ghost.is-active {
  border-color: rgba(75, 107, 255, 0.34);
  background: rgba(224, 233, 255, 0.85);
}

.version-name {
  margin-top: 18px;
}

.form-shell {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.form-section {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.64);
}

.form-section__head {
  display: grid;
  gap: 6px;
  margin-bottom: 16px;
}

.form-section__head h3 {
  margin: 0;
  font-size: 1.06rem;
}

.form-section__head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.fields-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field--full {
  grid-column: 1 / -1;
}

.field__label {
  font-size: 0.88rem;
  font-weight: 800;
}

.field__help {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.field__control,
.field textarea,
.field select {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.88);
  font: 700 0.95rem/1.4 "Manrope", sans-serif;
}

.field textarea {
  min-height: 112px;
  padding: 14px;
  resize: vertical;
}

.field input[type="color"] {
  min-height: 52px;
  padding: 6px;
}

.field input[type="checkbox"] {
  width: 20px;
  height: 20px;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.88);
}

.upload-card {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px dashed rgba(75, 107, 255, 0.24);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(245, 248, 255, 0.72));
}

.upload-card__head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.upload-card__head strong {
  display: block;
  margin-bottom: 4px;
}

.upload-card__head p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

.upload-card__meta {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.82rem;
}

.upload-card__footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.upload-preview {
  display: flex;
  align-items: center;
  gap: 12px;
}

.upload-preview__swatch {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background:
    linear-gradient(45deg, rgba(214, 221, 246, 0.55) 25%, transparent 25%, transparent 75%, rgba(214, 221, 246, 0.55) 75%),
    linear-gradient(45deg, rgba(214, 221, 246, 0.55) 25%, transparent 25%, transparent 75%, rgba(214, 221, 246, 0.55) 75%),
    rgba(255, 255, 255, 0.9);
  background-position: 0 0, 8px 8px, 0 0;
  background-size: 16px 16px, 16px 16px, auto;
  object-fit: cover;
}

.upload-preview__name {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.45;
}

.preview-card {
  gap: 0;
}

.preview-card__note {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.preview-device {
  position: relative;
  width: min(100%, 390px);
  margin: 18px auto 0;
  padding: 12px;
  border-radius: 46px;
  border: 1px solid rgba(52, 63, 120, 0.22);
  background:
    linear-gradient(180deg, rgba(247, 249, 255, 0.98), rgba(225, 231, 246, 0.98));
  box-shadow:
    0 34px 70px rgba(65, 79, 157, 0.22),
    inset 0 2px 0 rgba(255, 255, 255, 0.94),
    inset 0 -3px 10px rgba(112, 128, 210, 0.12);
}

.preview-device::before {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 38px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  pointer-events: none;
}

.preview-device__hardware {
  position: absolute;
  top: 140px;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(84, 98, 173, 0.36), rgba(35, 43, 89, 0.58));
}

.preview-device__hardware--left {
  left: -2px;
  height: 96px;
}

.preview-device__hardware--right {
  right: -2px;
  height: 132px;
}

.preview-device__topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 34px;
  padding: 0 16px 8px;
}

.preview-device__time,
.preview-device__title {
  font-size: 0.84rem;
  font-weight: 800;
}

.preview-device__title {
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.preview-device__signal {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.preview-device__island {
  position: relative;
  z-index: 2;
  width: 126px;
  height: 34px;
  margin: 0 auto 10px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(17, 22, 46, 0.96), rgba(39, 47, 89, 0.9));
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.08),
    0 8px 20px rgba(27, 33, 72, 0.22);
}

.preview-frame {
  position: relative;
  aspect-ratio: 393 / 852;
  border-radius: 34px;
  overflow: hidden;
  border: 1px solid rgba(64, 76, 145, 0.18);
  background: #dbe6ff;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.82),
    0 18px 30px rgba(84, 99, 181, 0.14);
}

.preview-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff;
}

.preview-loading {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 8px;
  padding: 18px;
  text-align: center;
  background: rgba(246, 249, 255, 0.84);
  color: var(--ink);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

.preview-loading span {
  color: var(--muted);
  max-width: 360px;
  line-height: 1.5;
}

.preview-loading.is-visible {
  opacity: 1;
}

.preview-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.summary-grid,
.versions-list,
.upload-guide {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.version-card,
.guide-card {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.74);
}

.guide-card--scene {
  overflow: hidden;
  gap: 12px;
}

.guide-card__thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  border: 1px solid rgba(75, 107, 255, 0.12);
  object-fit: cover;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.84),
    0 14px 24px rgba(70, 86, 162, 0.12);
}

.version-card__head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: start;
}

.version-card__title {
  margin: 0;
  font-size: 0.98rem;
}

.version-card__meta,
.guide-card p,
.empty-state {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.version-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.button--tiny {
  min-height: 36px;
  padding: 0 12px;
  border-radius: 12px;
  font-size: 0.82rem;
}

.empty-state {
  margin-top: 18px;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  max-width: min(420px, calc(100% - 32px));
  padding: 14px 16px;
  border-radius: 16px;
  color: #fff;
  background: rgba(26, 33, 71, 0.92);
  box-shadow: 0 16px 34px rgba(19, 24, 52, 0.24);
  transform: translateY(12px);
  opacity: 0;
  pointer-events: none;
  transition:
    transform 180ms ease,
    opacity 180ms ease;
}

.toast.is-visible {
  transform: translateY(0);
  opacity: 1;
}

@media (max-width: 1180px) {
  .constructor-layout {
    grid-template-columns: 1fr;
  }

  .constructor-preview-column {
    position: static;
  }
}

@media (max-width: 900px) {
  .hero {
    display: grid;
  }

  .template-picker,
  .fields-grid,
  .preview-actions {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .constructor-page {
    width: min(100%, calc(100% - 20px));
    padding: 14px 0 28px;
  }

  .hero,
  .card {
    padding: 18px;
    border-radius: 22px;
  }

  .preview-device {
    width: min(100%, 380px);
    padding: 10px;
    border-radius: 40px;
  }

  .preview-device::before {
    inset: 8px;
    border-radius: 32px;
  }

  .preview-device__island {
    width: 112px;
    height: 30px;
  }
}