/* ============================================================
   SIMPLARA 3D – Industrial Website Stylesheet
   ============================================================ */

/* ── Reset & Base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --c-bg:         #0f1114;
  --c-bg-2:       #161a1f;
  --c-bg-3:       #1d2228;
  --c-surface:    #232930;
  --c-border:     #2e3540;
  --c-border-hi:  #3d4a58;

  --c-steel:      #4a6070;
  --c-steel-hi:   #6a8090;

  --c-accent:     #1e6fa8;
  --c-accent-hi:  #2583c4;
  --c-accent-dim: #194f78;

  --c-text:       #d4dae0;
  --c-text-muted: #7a8a97;
  --c-text-dim:   #50606e;

  --c-white:      #f0f4f8;
  --c-number:     #0e3a56;

  --font-main: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'Consolas', 'Courier New', monospace;

  --radius: 0px;
  --max-w: 1200px;
  --gap: 2rem;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--c-bg);
  color: var(--c-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; }

ul { list-style: none; }

a {
  color: inherit;
  text-decoration: none;
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Buttons ── */
.btn-primary {
  display: inline-block;
  padding: 0.85rem 2.2rem;
  background: var(--c-accent);
  color: var(--c-white);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 2px solid var(--c-accent);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--c-accent-hi);
  border-color: var(--c-accent-hi);
  outline: none;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
  gap: 2rem;
}

.logo-block {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.logo-block {
  display: flex;
  align-items: center;
}

/* logo SVG principal */
.logo {
  max-width: 260px;
  height: auto;
  display: block;
}
``
.logo-name {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-white);
  line-height: 1;
}

.logo-accent {
  color: var(--c-accent-hi);
}

.logo-sub {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-muted);
}

.main-nav {
  display: flex;
  gap: 2.5rem;
}

.main-nav a {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}

.main-nav a:hover {
  color: var(--c-white);
  border-bottom-color: var(--c-accent);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background-color: var(--c-bg-2);
  overflow: hidden;
}

/* engineering grid background */
.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--c-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.25;
  pointer-events: none;
}

/* diagonal stripe accent */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    transparent 60%,
    rgba(30, 111, 168, 0.06) 100%
  );
  pointer-events: none;
}

/* left accent bar */
.hero::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--c-accent);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.hero-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent-hi);
  border: 1px solid var(--c-accent-dim);
  padding: 0.3rem 0.8rem;
  margin-bottom: 1.8rem;
  background: rgba(30, 111, 168, 0.08);
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.12;
  color: var(--c-white);
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--c-text-muted);
  max-width: 580px;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

/* ============================================================
   SECTION SHARED
   ============================================================ */
section {
  padding: 6rem 0;
}

.section-header {
  margin-bottom: 3.5rem;
}

.section-tag {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-accent-hi);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: -0.01em;
  line-height: 1.25;
  border-left: 3px solid var(--c-accent);
  padding-left: 1rem;
}

.section-desc {
  margin-top: 1rem;
  padding-left: 1.25rem;
  font-size: 0.95rem;
  color: var(--c-text-muted);
}

/* ============================================================
   SERVICES
   ============================================================ */
.services {
  background: var(--c-bg);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--c-border);
  border: 1px solid var(--c-border);
}

.service-card {
  background: var(--c-bg-2);
  padding: 2rem 1.75rem;
  position: relative;
  transition: background 0.2s;
}

.service-card:hover {
  background: var(--c-bg-3);
}

.service-card--featured {
  background: var(--c-surface);
  border-top: 3px solid var(--c-accent);
}

.service-card--featured:hover {
  background: #262d35;
}

.service-card--wide {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto 1fr 1fr;
  grid-template-rows: auto auto auto;
  column-gap: 2rem;
  align-items: start;
}

.service-card--wide .service-number {
  grid-column: 1;
  grid-row: 1;
}

.service-card--wide .service-icon {
  grid-column: 1;
  grid-row: 2;
}

.service-card--wide .service-title {
  grid-column: 2;
  grid-row: 1 / 2;
  align-self: end;
}

.service-card--wide .service-desc {
  grid-column: 2;
  grid-row: 2 / 4;
}

.service-card--wide .service-tags {
  grid-column: 3;
  grid-row: 1 / 4;
  align-self: center;
}

.service-number {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-text-dim);
  margin-bottom: 1rem;
}

.service-icon {
  width: 40px;
  height: 40px;
  color: var(--c-accent-hi);
  margin-bottom: 1.25rem;
}

.service-icon svg {
  width: 100%;
  height: 100%;
}

.service-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: 0.01em;
  line-height: 1.35;
  margin-bottom: 1.2rem;
  text-transform: uppercase;
}

.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.service-list > li {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  padding-left: 1rem;
  position: relative;
  line-height: 1.5;
}

.service-list > li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--c-accent);
  font-size: 0.75rem;
  top: 0.05em;
}

.service-sublist {
  list-style: none;
  margin-top: 0.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.service-sublist li {
  font-size: 0.82rem;
  color: var(--c-text-dim);
  padding-left: 1.2rem;
  position: relative;
}

.service-sublist li::before {
  content: '›';
  position: absolute;
  left: 0.3rem;
  color: var(--c-steel);
}

.service-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-accent-hi);
  border: 1px solid var(--c-accent-dim);
  padding: 0.2rem 0.6rem;
  margin-bottom: 1rem;
  background: rgba(30, 111, 168, 0.1);
}

.service-desc {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  line-height: 1.65;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-content: flex-start;
}

.service-tags span {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-steel-hi);
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  padding: 0.35rem 0.75rem;
}

/* ============================================================
   WORKFLOW
   ============================================================ */
.workflow {
  background: var(--c-bg-2);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}

.workflow-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 1.5rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--c-border);
  align-items: start;
  transition: background 0.15s;
}

.step:first-child { border-top: 1px solid var(--c-border); }

.step:hover {
  background: rgba(255,255,255,0.015);
}

.step--final {
  border-color: var(--c-accent-dim);
}

.step--final .step-num {
  border-color: var(--c-accent);
  color: var(--c-accent-hi);
  background: rgba(30, 111, 168, 0.12);
}

.step-connector {
  display: none;
}

.step-num {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text-muted);
  border: 2px solid var(--c-border-hi);
  background: var(--c-bg);
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.step-body {
  padding-top: 0.25rem;
}

.step-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-white);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.6rem;
}

.step-body ul {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.step-body ul li {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  padding-left: 1rem;
  position: relative;
}

.step-body ul li::before {
  content: '·';
  position: absolute;
  left: 0.2rem;
  color: var(--c-accent);
  font-size: 1.1em;
  line-height: 1;
  top: 0.1em;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  background: var(--c-bg);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 4rem;
  align-items: start;
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: flex;
  gap: 1.25rem;
}

.form-row--2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-row--submit {
  padding-top: 0.5rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  flex: 1;
}

label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-muted);
}

input,
textarea {
  background: var(--c-bg-2);
  border: 1px solid var(--c-border);
  color: var(--c-text);
  font-family: var(--font-main);
  font-size: 0.9rem;
  padding: 0.75rem 1rem;
  width: 100%;
  transition: border-color 0.2s, background 0.2s;
  resize: vertical;
  outline: none;
}

input::placeholder,
textarea::placeholder {
  color: var(--c-text-dim);
}

input:focus,
textarea:focus {
  border-color: var(--c-accent);
  background: var(--c-bg-3);
}

textarea {
  line-height: 1.6;
}

/* Sidebar */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--c-border);
}

.info-block {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--c-border);
}

.info-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent-hi);
  margin-bottom: 0.5rem;
}

.info-value {
  font-size: 0.875rem;
  color: var(--c-text);
  line-height: 1.7;
}

.info-note {
  padding: 1.25rem 1.5rem;
  font-size: 0.8rem;
  color: var(--c-text-muted);
  line-height: 1.65;
  background: var(--c-bg-2);
}

.info-note strong {
  color: var(--c-text);
  display: block;
  margin-bottom: 0.35rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--c-bg-2);
  border-top: 1px solid var(--c-border);
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-white);
}

.footer-text {
  font-size: 0.85rem;
  color: var(--c-text-muted);
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--c-text-dim);
  letter-spacing: 0.04em;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-card--wide {
    grid-column: 1 / -1;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto auto auto;
  }

  .service-card--wide .service-number { grid-column: 1; grid-row: 1; }
  .service-card--wide .service-icon   { grid-column: 1; grid-row: 2; }
  .service-card--wide .service-title  { grid-column: 2; grid-row: 1 / 2; }
  .service-card--wide .service-desc   { grid-column: 2; grid-row: 2 / 3; }
  .service-card--wide .service-tags   { grid-column: 1 / -1; grid-row: 4; }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .info-block:last-of-type {
    border-bottom: none;
  }
}

/* Mobile large */
@media (max-width: 768px) {
  :root { --gap: 1.25rem; }

  .container { padding: 0 1.25rem; }

  section { padding: 4rem 0; }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .main-nav { gap: 1.5rem; }

  .hero {
    min-height: auto;
  }

  .hero-content {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .service-card--wide {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .service-card--wide .service-number,
  .service-card--wide .service-icon,
  .service-card--wide .service-title,
  .service-card--wide .service-desc,
  .service-card--wide .service-tags {
    grid-column: 1;
    grid-row: auto;
  }

  .form-row--2 {
    grid-template-columns: 1fr;
  }

  .contact-info {
    grid-template-columns: 1fr;
  }

  .info-block:last-of-type {
    border-bottom: 1px solid var(--c-border);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

/* Mobile small */
@media (max-width: 480px) {
  .hero-label { font-size: 0.65rem; }
  .main-nav { gap: 1rem; }
  .main-nav a { font-size: 0.75rem; }
  .btn-primary { width: 100%; text-align: center; }
}