/* Teknoplus — SCADA / ADMS provider (utility-grade UI) */

:root {
  --bg-deep: #0a0f14;
  --bg-panel: #111920;
  --bg-elevated: #161e28;
  --border: rgba(94, 234, 212, 0.12);
  --text: #e8eef4;
  --text-muted: #8b9aab;
  --accent: #2dd4bf;
  --accent-dim: #14b8a6;
  --accent-glow: rgba(45, 212, 191, 0.35);
  --warn: #fbbf24;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --radius: 10px;
  --nav-h: 4rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-deep);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(45, 212, 191, 0.08), transparent),
    linear-gradient(180deg, var(--bg-deep) 0%, #070a0d 100%);
}

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

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

a:hover {
  text-decoration: underline;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--bg-deep);
  z-index: 1000;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 15, 20, 0.85);
  backdrop-filter: blur(12px);
}

.header-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
}

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

.brand img {
  height: 2.25rem;
  width: auto;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.brand-text span {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-decoration: none;
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 1rem;
  background: linear-gradient(135deg, var(--accent-dim), var(--accent));
  color: var(--bg-deep) !important;
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: 999px;
  box-shadow: 0 0 24px var(--accent-glow);
}

.nav-cta:hover {
  filter: brightness(1.08);
  text-decoration: none;
}

@media (max-width: 860px) {
  .nav-toggle {
    display: block;
  }

  .nav-list {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem 1.25rem;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    gap: 0;
    display: none;
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-list li {
    border-bottom: 1px solid var(--border);
  }

  .nav-list li:last-child {
    border-bottom: none;
    padding-top: 0.75rem;
  }

  .nav-list a {
    display: block;
    padding: 0.65rem 0;
  }

  .nav-cta {
    justify-content: center;
    width: 100%;
  }
}

/* Layout */
main {
  overflow-x: hidden;
}

.section {
  padding: 4.5rem 1.25rem;
}

.section--tight {
  padding-top: 2rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-head {
  margin-bottom: 2.5rem;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin: 0 0 0.5rem;
}

.section-head h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.section-head p {
  margin: 0;
  max-width: 52ch;
  color: var(--text-muted);
}

/* Hero */
.hero {
  padding: 3rem 1.25rem 4rem;
  position: relative;
}

.hero-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

.hero-copy h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.hero-copy h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-lead {
  margin: 0 0 1.5rem;
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 40ch;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.hero-meta span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  font-family: inherit;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-dim), var(--accent));
  color: var(--bg-deep);
  box-shadow: 0 4px 28px var(--accent-glow);
}

.btn-primary:hover {
  filter: brightness(1.06);
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

.hero-visual {
  position: relative;
  border-radius: calc(var(--radius) + 4px);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  aspect-ratio: 4 / 3;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 15, 20, 0.2), transparent 40%, rgba(45, 212, 191, 0.08));
  pointer-events: none;
}

.hero-badge {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  padding: 0.65rem 1rem;
  background: rgba(10, 15, 20, 0.88);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  z-index: 1;
}

.hero-badge strong {
  color: var(--warn);
}

/* Cards & grids */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

@media (max-width: 900px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  border-color: rgba(45, 212, 191, 0.35);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.capability-card {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1rem;
  align-items: start;
}

@media (max-width: 500px) {
  .capability-card {
    grid-template-columns: 1fr;
  }
}

.capability-card .thumb {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 1;
}

.capability-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.75rem;
  padding: 0;
  list-style: none;
}

.tag-list li {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background: var(--bg-elevated);
  color: var(--accent);
  border: 1px solid var(--border);
}

/* Client cards */
.client-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

@media (max-width: 768px) {
  .client-grid {
    grid-template-columns: 1fr;
  }
}

.client-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.client-card__head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.client-card__logo {
  flex-shrink: 0;
  width: 5.5rem;
  height: 5.5rem;
  border-radius: var(--radius);
  background: rgba(232, 238, 244, 0.96);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
}

.client-card__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.client-card__title {
  min-width: 0;
  flex: 1;
}

.client-card__title h3 {
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
  color: var(--accent);
}

.client-card__title .abbr {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0;
}

.timeline {
  display: grid;
  gap: 0.75rem;
}

.timeline-row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 0.75rem;
  font-size: 0.9rem;
}

.timeline-row dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--warn);
}

.timeline-row dd {
  margin: 0;
  color: var(--text-muted);
}

.logo-strip {
  margin-top: 2.5rem;
  padding: 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.logo-strip p {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

.logo-strip-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1.25rem 2rem;
}

.logo-strip-inner img {
  height: 40px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  filter: grayscale(0.2) brightness(0.95);
  opacity: 0.9;
}

/* Projects */
.project-list {
  display: grid;
  gap: 1rem;
}

.project-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1.25rem;
  padding: 1.25rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  align-items: start;
}

@media (max-width: 600px) {
  .project-item {
    grid-template-columns: 1fr;
  }
}

.project-item .status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.project-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.project-item p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Events */
.event-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

@media (max-width: 768px) {
  .event-grid {
    grid-template-columns: 1fr;
  }
}

.event-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-panel);
}

.event-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.event-card .body {
  padding: 1.25rem;
}

.event-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.event-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Roadmap */
.roadmap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 768px) {
  .roadmap {
    grid-template-columns: 1fr;
  }
}

.roadmap-col {
  padding: 1.25rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.roadmap-col h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--warn);
}

.roadmap-col ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.roadmap-col li {
  margin-bottom: 0.4rem;
}

/* Reference figure */
.figure-panel {
  margin-top: 2rem;
  padding: 1.25rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.figure-panel img {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  margin: 0 auto;
}

.figure-panel figcaption {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Footer */
.site-footer {
  padding: 3rem 1.25rem;
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 640px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

.footer-brand img {
  height: 2rem;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 36ch;
}

.footer-contact {
  text-align: right;
}

@media (max-width: 640px) {
  .footer-contact {
    text-align: left;
  }
}

.footer-contact strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
}

.footer-contact__row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.35rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-contact__icon {
  flex-shrink: 0;
  width: 1.1em;
  text-align: center;
  color: var(--accent);
  font-size: 0.95rem;
}

.footer-contact__phones {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.footer-contact__sep {
  color: var(--text-muted);
  opacity: 0.7;
}

.footer-contact a {
  color: var(--text);
  text-decoration: none;
}

.footer-contact a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.footer-note {
  max-width: 1200px;
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}