body[data-page="steklo"] {
  --steklo-bg: #11161c;
  --steklo-text: #edf2f7;
  --steklo-muted: #98a6b5;
  --steklo-accent: #7eb0d5;
  --steklo-line: rgba(226, 234, 242, 0.14);
  --steklo-line-strong: rgba(226, 234, 242, 0.28);
  --steklo-panel: rgba(255, 255, 255, 0.04);
  --steklo-font-display: "Manrope", system-ui, sans-serif;
  --steklo-font-body: "Inter", system-ui, sans-serif;
  --steklo-radius: 3px;

  color: var(--steklo-text);
  background: var(--steklo-bg);
  background-image: none;
  overflow-x: hidden;
}

body[data-page="steklo"] .dev-veil {
  background: rgba(17, 22, 28, 0.72);
}

body[data-page="steklo"] .dev-veil p {
  border-radius: var(--steklo-radius);
  background: rgba(237, 242, 247, 0.08);
  color: var(--steklo-text);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.45);
}

body[data-page="steklo"] h1,
body[data-page="steklo"] h2,
body[data-page="steklo"] h3 {
  font-family: var(--steklo-font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--steklo-text);
}

body[data-page="steklo"] h1 {
  font-weight: 600;
}

body[data-page="steklo"] .container {
  max-width: 1200px;
}

/* Header */

.steklo-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--steklo-line);
  background: rgba(17, 22, 28, 0.92);
  backdrop-filter: blur(8px);
}

.steklo-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}

.steklo-wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--steklo-font-display);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--steklo-text);
}

.steklo-wordmark:hover {
  text-decoration: none;
  color: var(--steklo-accent);
}

.steklo-header__actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-shrink: 0;
}

.steklo-header__phone {
  font-family: var(--steklo-font-body);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--steklo-text);
  text-decoration: none;
  white-space: nowrap;
}

.steklo-header__phone:hover {
  color: var(--steklo-accent);
  text-decoration: none;
}

/* Buttons */

.steklo-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  font-family: var(--steklo-font-body);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  background: var(--steklo-text);
  color: var(--steklo-bg);
  transition: background 0.15s ease;
}

.steklo-btn:hover {
  text-decoration: none;
  background: #cfe0ee;
  color: var(--steklo-bg);
}

.steklo-btn--outline {
  background: transparent;
  color: var(--steklo-text);
  border: 1px solid rgba(237, 242, 247, 0.32);
}

.steklo-btn--outline:hover {
  background: rgba(237, 242, 247, 0.08);
  color: var(--steklo-text);
}

/* Hero */

.steklo-hero {
  padding: 2.5rem 0 3rem;
}

.steklo-hero__grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-rows: minmax(560px, auto);
  align-items: center;
  position: relative;
}

.steklo-hero__media {
  grid-column: 4 / 13;
  grid-row: 1;
  align-self: stretch;
  min-height: 560px;
  border: 1px solid var(--steklo-line);
  border-radius: var(--steklo-radius);
  overflow: hidden;
}

.steklo-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 560px;
  object-fit: cover;
}

.steklo-hero__card {
  grid-column: 1 / 7;
  grid-row: 1;
  z-index: 2;
  align-self: center;
  margin-right: -6%;
  background: #11161c;
  border: 1px solid rgba(226, 234, 242, 0.55);
  border-radius: var(--steklo-radius);
  box-shadow: 0 0 0 8px #11161c;
}

.steklo-hero__copy {
  padding: 2rem 2.25rem;
}

.steklo-hero__systems {
  margin: 0 0 0.85rem;
  font-family: var(--steklo-font-body);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: #7eb0d5;
}

.steklo-hero__copy h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  line-height: 1.15;
}

.steklo-lead {
  margin: 0 0 1.5rem;
  font-family: var(--steklo-font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: #98a6b5;
}

/* Sections */

.steklo-section {
  padding: 2.5rem 0;
}

.steklo-section h2 {
  margin: 0 0 1.5rem;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}

.steklo-section--panel {
  border-top: 1px solid var(--steklo-line);
  border-bottom: 1px solid var(--steklo-line);
  background: var(--steklo-panel);
}

/* Spectrum */

.steklo-spectrum {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--steklo-line);
  border-radius: var(--steklo-radius);
  overflow: hidden;
}

.steklo-spectrum__cell {
  border-right: 1px solid var(--steklo-line);
  border-bottom: 1px solid var(--steklo-line);
  margin-right: -1px;
  margin-bottom: -1px;
}

.steklo-spectrum__cell--wide {
  grid-column: span 2;
}

.steklo-spectrum__cell--full {
  grid-column: 1 / -1;
}

.steklo-spectrum__figure {
  margin: 0;
}

.steklo-spectrum__photo {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--steklo-bg);
}

.steklo-spectrum__photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.steklo-spectrum__caption {
  padding: 1rem 1.15rem 1.15rem;
}

.steklo-spectrum__caption h3 {
  display: inline;
  margin: 0;
  font-size: 1.05rem;
}

.steklo-spectrum__caption p {
  margin: 0.55rem 0 0;
  font-family: var(--steklo-font-body);
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--steklo-muted);
}

.steklo-spectrum__index {
  display: inline-block;
  margin-right: 0.65rem;
  font-family: var(--steklo-font-display);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  color: var(--steklo-accent);
}

/* Cycle */

.steklo-cycle-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 2rem 3rem;
  align-items: start;
}

.steklo-cycle-layout > h2 {
  margin: 0;
}

.steklo-cycle {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--steklo-line);
  border-radius: var(--steklo-radius);
  overflow: hidden;
}

.steklo-cycle__item {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 1rem 1.5rem;
  align-items: baseline;
  padding: 1.15rem 1.35rem;
  border-bottom: 1px solid var(--steklo-line);
}

.steklo-cycle__item:last-child {
  border-bottom: none;
}

.steklo-cycle__label {
  font-family: var(--steklo-font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--steklo-text);
}

.steklo-cycle__desc {
  font-family: var(--steklo-font-body);
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--steklo-muted);
}

/* Form */

.steklo-form-section {
  scroll-margin-top: 72px;
  padding-bottom: 4rem;
}

.steklo-form-box {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 0;
  border: 1px solid var(--steklo-line);
  border-radius: var(--steklo-radius);
  background: var(--steklo-panel);
  overflow: hidden;
}

.steklo-form-intro {
  padding: 2rem 2.25rem;
  border-right: 1px solid var(--steklo-line);
}

.steklo-form-intro h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}

.steklo-form-invite {
  margin: 0;
  font-family: var(--steklo-font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--steklo-muted);
}

body[data-page="steklo"] .steklo-zayavka-form {
  max-width: none;
  padding: 2rem 2.25rem;
  margin: 0;
  border: none;
  border-radius: 0;
  background: transparent;
}

.steklo-form__pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

body[data-page="steklo"] .form-row label {
  font-family: var(--steklo-font-body);
  font-weight: 500;
  color: var(--steklo-muted);
}

body[data-page="steklo"] .form-row input,
body[data-page="steklo"] .form-row textarea {
  padding: 0.65rem 0;
  border: none;
  border-radius: 0;
  border-bottom: 1px solid var(--steklo-line-strong);
  background: transparent;
  color: var(--steklo-text);
}

body[data-page="steklo"] .form-row input:focus,
body[data-page="steklo"] .form-row textarea:focus {
  outline: none;
  border-bottom-color: var(--steklo-accent);
}

body[data-page="steklo"] .form-hint {
  color: var(--steklo-muted);
}

body[data-page="steklo"] .form-message--ok {
  color: var(--steklo-accent);
}

/* Footer */

.steklo-footer {
  border-top: 1px solid var(--steklo-line);
  padding: 2rem 0 2.5rem;
}

.steklo-wordmark--footer {
  margin-bottom: 0.75rem;
}

.steklo-footer__muted {
  margin: 0 0 0.35rem;
  font-family: var(--steklo-font-body);
  font-size: 0.9rem;
  color: var(--steklo-muted);
}

.steklo-footer__muted a {
  color: var(--steklo-text);
}

.steklo-footer__muted a:hover {
  color: var(--steklo-accent);
  text-decoration: none;
}

/* Responsive */

@media (max-width: 720px) {
  .steklo-header__phone {
    display: none;
  }

  .steklo-hero {
    padding-top: 1.5rem;
  }

  .steklo-hero__grid {
    grid-template-columns: minmax(0, 1fr);
    background-image: none;
  }

  .steklo-hero__card {
    grid-column: 1 / -1;
    grid-row: 1;
    margin-right: 0;
    border-left: 1px solid var(--steklo-line-strong);
  }

  .steklo-hero__media {
    grid-column: 1 / -1;
    grid-row: 2;
    min-height: 0;
    aspect-ratio: 16 / 10;
  }

  .steklo-hero__media img {
    min-height: 0;
    height: 100%;
  }

  .steklo-spectrum {
    grid-template-columns: minmax(0, 1fr);
  }

  .steklo-spectrum__cell,
  .steklo-spectrum__cell--wide,
  .steklo-spectrum__cell--full {
    grid-column: span 1;
  }

  .steklo-cycle-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .steklo-cycle__item {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.35rem;
  }

  .steklo-form-box {
    grid-template-columns: minmax(0, 1fr);
  }

  .steklo-form-intro {
    border-right: none;
    border-bottom: 1px solid var(--steklo-line);
  }

  .steklo-form__pair {
    grid-template-columns: minmax(0, 1fr);
  }
}