/* =============================================================================
   Top Co — semantic layout (no Tilda)
   Fonts: Noto Sans Armenian via Google Fonts in HTML
   ============================================================================= */

:root {
  --color-bg-dark: #1e1e1e;
  --color-bg-light: #ededed;
  --color-surface: #f9f9f9;
  --color-text: #333333;
  --color-text-muted: #555555;
  --color-on-dark: #ffffff;
  --color-accent: #f34c08;
  --font-sans: "Noto Sans Armenian", system-ui, -apple-system, "Segoe UI", sans-serif;
  --lh-body: 1.72;
  --lh-heading: 1.2;
  --track: 0.012em;
  --radius-btn: 5px;
  --shadow-header: 0 1px 0 rgba(255, 255, 255, 0.06);
  --max-content: 1200px;
  --max-prose: 760px;
  --space-section-y: clamp(3rem, 8vw, 8rem);
  --space-section-x: clamp(1rem, 4vw, 1.25rem);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: var(--lh-body);
  letter-spacing: var(--track);
}

/* Tilda-exported pages keep their own colors; enforce Armenian stack */
body.t-body {
  font-family: var(--font-sans) !important;
  line-height: var(--lh-body);
  letter-spacing: var(--track);
}

/* Rebuilt homepage only */
body.page-home {
  color: var(--color-on-dark);
  background-color: var(--color-bg-dark);
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--color-accent);
}

/* -----------------------------------------------------------------------------
   Layout
   ----------------------------------------------------------------------------- */
.grid-container {
  width: 100%;
  max-width: var(--max-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-section-x);
  padding-right: var(--space-section-x);
}

/* -----------------------------------------------------------------------------
   Typography
   ----------------------------------------------------------------------------- */
.section-title {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: var(--lh-heading);
  letter-spacing: 0.005em;
  margin: 0 0 0.75rem;
  text-align: center;
  color: var(--color-on-dark);
}

.section-title--dark {
  color: var(--color-bg-dark);
}

.section-lead {
  max-width: 42rem;
  margin: 0 auto 2.5rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.05rem;
}

.section--light .section-lead {
  color: var(--color-text-muted);
}

.card-title {
  font-size: clamp(1.25rem, 2.5vw, 2.25rem);
  font-weight: 700;
  line-height: var(--lh-heading);
  margin: 0 0 0.75rem;
  color: var(--color-bg-dark);
}

.card-text {
  margin: 0;
  font-size: clamp(0.9375rem, 1.2vw, 1.375rem);
  line-height: 1.55;
  color: var(--color-text);
  flex: 1;
}

/* -----------------------------------------------------------------------------
   Buttons
   ----------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.35rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: var(--track);
  border-radius: var(--radius-btn);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.btn-primary {
  background-color: #000000;
  color: var(--color-on-dark);
  border-color: #000000;
}

.btn-primary:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-on-dark);
}

.btn-outline-light {
  background: transparent;
  color: var(--color-on-dark);
  border-color: var(--color-accent);
}

.btn-outline-light:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-on-dark);
}

/* -----------------------------------------------------------------------------
   Site header
   ----------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(30, 30, 30, 0.97);
  box-shadow: var(--shadow-header);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.logo {
  display: block;
  width: 156px;
  height: auto;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-on-dark);
  border-radius: 1px;
}

.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--color-on-dark);
  font-weight: 400;
  text-decoration: none;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-accent);
}

.nav-details {
  position: relative;
}

.nav-details summary {
  list-style: none;
  cursor: pointer;
  color: var(--color-on-dark);
  font-weight: 400;
}

.nav-details summary::-webkit-details-marker {
  display: none;
}

.nav-submenu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  margin: 0.35rem 0 0;
  padding: 0.5rem 0;
  list-style: none;
  background: var(--color-bg-dark);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.nav-submenu a {
  display: block;
  padding: 0.45rem 1rem;
  color: var(--color-on-dark);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav-submenu a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-accent);
}

.header-contact {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.9rem;
  margin-left: 1.25rem;
}

.header-contact a {
  text-decoration: none;
  color: var(--color-on-dark);
}

.header-lang {
  margin: 0 0 0 0.75rem;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.86);
  white-space: nowrap;
}

.header-lang a,
.header-lang span {
  text-decoration: none;
  color: inherit;
}

.header-lang a:hover {
  color: var(--color-accent);
}

.header-lang span[aria-current="page"] {
  color: var(--color-on-dark);
  font-weight: 700;
}

.whatsapp-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.whatsapp-link:hover,
.whatsapp-link:focus-visible {
  color: var(--color-on-dark);
  background: rgba(37, 211, 102, 0.22);
  border-color: #25d366;
  transform: translateY(-1px);
}

@media (max-width: 1023px) {
  .logo {
    width: 136px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    inset: 72px 0 auto 0;
    max-height: min(70vh, 520px);
    overflow-y: auto;
    background: var(--color-bg-dark);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem var(--space-section-x) 1.25rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list > li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.5rem 0;
  }

  .nav-submenu {
    position: static;
    box-shadow: none;
    border: 0;
    padding-left: 0.75rem;
    margin-top: 0.35rem;
  }

  .header-contact {
    margin-left: 0;
    margin-top: 0.75rem;
  }

  .header-lang {
    margin-left: 0;
    margin-top: 0.35rem;
  }
}

/* -----------------------------------------------------------------------------
   Hero + services (cover)
   ----------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background-color: var(--color-bg-dark);
  background-image: linear-gradient(
      rgba(0, 0, 0, 0.4),
      rgba(0, 0, 0, 0.4)
    ),
    url("tild3338-3061-4338-b232-323266343361/-/resize/20x/venato_back.jpg");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.hero-inner {
  width: 100%;
  max-width: var(--max-content);
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 4rem) var(--space-section-x);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

@media (min-width: 1200px) {
  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2.5rem;
  }
}

.service-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: clamp(1.25rem, 3vw, 3.75rem);
  background: var(--color-surface);
}

/* -----------------------------------------------------------------------------
   Sections (light band, palette, etc.)
   ----------------------------------------------------------------------------- */
.section {
  padding-top: var(--space-section-y);
  padding-bottom: var(--space-section-y);
}

.section--dark {
  background-color: var(--color-bg-dark);
}

.section--light {
  background-color: var(--color-bg-light);
  color: var(--color-text);
}

.section--dark .section-title {
  color: var(--color-on-dark);
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}

@media (min-width: 768px) {
  .palette-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.25rem;
  }
}

.palette-card {
  margin: 0;
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.palette-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.palette-card figcaption {
  padding: 0.65rem 0.75rem;
  font-size: 0.85rem;
  color: var(--color-text);
  text-align: center;
}

/* Features */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--color-on-dark);
}

.feature-card p {
  margin: 0;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

/* Partnership timeline */
.steps-list {
  max-width: 720px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.step-item {
  position: relative;
  padding-left: 3rem;
  padding-bottom: 2rem;
  border-left: 2px solid rgba(0, 0, 0, 0.12);
  margin-left: 0.75rem;
}

.step-item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.step-item::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: -0.85rem;
  top: 0;
  width: 1.75rem;
  height: 1.75rem;
  line-height: 1.75rem;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-on-dark);
  background: var(--color-bg-dark);
  border-radius: 50%;
}

.step-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
  color: var(--color-bg-dark);
}

.step-item p {
  margin: 0;
  color: var(--color-text);
  font-size: 0.98rem;
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 900px) {
  .contact-layout {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-card {
  padding: 2rem;
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: 6px;
}

.contact-card .section-title {
  text-align: left;
  margin-bottom: 1rem;
  color: var(--color-bg-dark);
}

.contact-card p,
.contact-card a {
  margin: 0 0 0.5rem;
  color: var(--color-text);
}

.social-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.social-row a {
  text-decoration: none;
  font-weight: 600;
  color: var(--color-bg-dark);
}

.social-row a:hover {
  color: var(--color-accent);
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-bg-dark);
}

.form-input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  border: 1px solid #c9c9c9;
  border-radius: var(--radius-btn);
  background: #fff;
}

.form-input:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

/* Footer */
.site-footer {
  padding: 2rem var(--space-section-x);
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.75);
  background: var(--color-bg-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer p {
  margin: 0;
}

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

.text-center {
  text-align: center;
}

.mt-lg {
  margin-top: 2rem;
}

/* -----------------------------------------------------------------------------
   Inner pages (about, catalog, certificates, gallery)
   ----------------------------------------------------------------------------- */
body.page-inner {
  color: var(--color-text);
  background-color: var(--color-bg-light);
}

body.page-inner .site-header {
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.page-cover {
  --cover-image: none;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52vh;
  padding: clamp(3rem, 10vw, 5rem) var(--space-section-x);
  background-color: #111;
  background-image: linear-gradient(rgba(0, 0, 0, 0.72), rgba(0, 0, 0, 0.72)), var(--cover-image);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-on-dark);
  text-align: center;
}

.page-cover--short {
  min-height: 42vh;
}

.page-cover--tall {
  min-height: 78vh;
}

.page-cover__inner {
  width: 100%;
  max-width: 48rem;
  margin: 0 auto;
}

.page-cover__title {
  margin: 0 0 1rem;
  font-size: clamp(1.65rem, 4vw, 2.65rem);
  font-weight: 700;
  line-height: var(--lh-heading);
  color: inherit;
}

.page-cover__title a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-underline-offset: 0.12em;
}

.page-cover__title a:hover {
  color: var(--color-accent);
}

.page-cover__eyebrow {
  display: block;
  margin-bottom: 0.35em;
  font-size: 0.45em;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: none;
  opacity: 0.95;
}

.page-cover__lead {
  margin: 0 auto;
  max-width: 42rem;
  font-size: 1.05rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.9);
}

.page-cover__actions {
  margin-top: 1.75rem;
}

.prose-section {
  padding: var(--space-section-y) var(--space-section-x);
}

.prose-card {
  max-width: var(--max-prose);
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 28px rgba(0, 0, 0, 0.07);
  color: var(--color-text);
}

.prose-card p {
  margin: 0 0 1rem;
  font-size: 1.02rem;
}

.prose-card p:last-child {
  margin-bottom: 0;
}

.prose-card a {
  color: var(--color-bg-dark);
  font-weight: 600;
}

.prose-card a:hover {
  color: var(--color-accent);
}

.certs-section {
  padding: var(--space-section-y) var(--space-section-x);
  background: var(--color-bg-light);
}

.cert-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

@media (min-width: 560px) {
  .cert-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .cert-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.cert-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.cert-card__media {
  aspect-ratio: 4 / 3;
  background: #e8e8e8;
}

.cert-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cert-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.5rem;
  padding: 1.1rem 1.15rem 1.25rem;
}

.cert-card__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-bg-dark);
}

.cert-card__descr {
  flex: 1;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--color-text-muted);
}

.cert-card .btn {
  align-self: flex-start;
  margin-top: 0.25rem;
}

.gallery-section {
  padding: var(--space-section-y) var(--space-section-x);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.gallery-item {
  margin: 0;
  overflow: hidden;
  border-radius: 6px;
  background: #222;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.gallery-item img {
  display: block;
  width: 100%;
  height: clamp(200px, 28vw, 260px);
  object-fit: cover;
}

.nav-submenu a[aria-current="page"],
a.nav-link[aria-current="page"] {
  color: var(--color-accent);
  font-weight: 600;
}