/* ============================================================
   ADRIANA VESA — Mondrian Design System
   Inspired by Piet Mondrian's De Stijl compositions
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600;700&family=Inter:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&display=swap');

:root {
  --red:    #CC1600;
  --yellow: #F5C300;
  --blue:   #1046A8;
  --black:  #1A1A1A;
  --white:  #FFFFFF;
  --off:    #FAFAF8;
  --line:   4px solid #1A1A1A;
  --line2:  2px solid #1A1A1A;
  --fh:     'Oswald', sans-serif;
  --fb:     'Inter', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--fb);
  background: var(--off);
  color: var(--black);
  font-size: 16px;
  line-height: 1.6;
}

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

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--white);
  border-bottom: var(--line);
  display: flex;
  align-items: stretch;
  height: 60px;
}

.nav-accent-left {
  width: 14px;
  background: var(--red);
  flex-shrink: 0;
}

.nav-logo {
  font-family: var(--fh);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 0 24px;
  display: flex;
  align-items: center;
  border-right: var(--line);
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: stretch;
  margin-left: auto;
}

.nav-link {
  font-family: var(--fb);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 0 18px;
  display: flex;
  align-items: center;
  border-left: var(--line2);
  transition: background 0.15s, color 0.15s;
  color: var(--black);
}

.nav-link:hover { background: var(--yellow); }
.nav-link.active { background: var(--blue); color: var(--white); }

.nav-accent-right {
  width: 14px;
  background: var(--blue);
  border-left: var(--line);
  flex-shrink: 0;
}

/* ============================================================
   HERO — Home Page
   ============================================================ */
.hero {
  display: grid;
  grid-template-columns: 1fr 220px;
  border-bottom: var(--line);
  min-height: 440px;
}

.hero-main {
  padding: 72px 64px;
  border-right: var(--line);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 20px;
  background: var(--white);
}

.hero-name {
  font-family: var(--fh);
  font-size: 68px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  line-height: 1;
  color: var(--black);
}

.hero-role {
  font-family: var(--fh);
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--black);
  opacity: 0.55;
}

.hero-tagline {
  font-size: 17px;
  font-weight: 300;
  font-style: italic;
  color: var(--black);
  max-width: 520px;
  line-height: 1.75;
  border-left: 4px solid var(--red);
  padding-left: 20px;
}

.hero-cta {
  display: inline-block;
  margin-top: 8px;
  background: var(--black);
  color: var(--white);
  font-family: var(--fh);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 14px 32px;
  border: var(--line);
  transition: background 0.15s, color 0.15s;
  width: fit-content;
}

.hero-cta:hover { background: var(--red); border-color: var(--red); }

.hero-sidebar {
  display: grid;
  grid-template-rows: 1fr 100px 80px;
}

.hero-sb-red   { background: var(--red); }
.hero-sb-white { background: var(--white); border-top: var(--line); border-bottom: var(--line); }
.hero-sb-blue  { background: var(--blue); }

/* ============================================================
   PAGE HEADER (inner pages)
   ============================================================ */
.page-header {
  display: grid;
  grid-template-columns: 1fr 160px;
  border-bottom: var(--line);
  background: var(--white);
}

.page-header-content {
  padding: 56px 64px;
  border-right: var(--line);
}

.page-label {
  font-family: var(--fh);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 12px;
  display: block;
}

.page-title {
  font-family: var(--fh);
  font-size: 52px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  line-height: 1.05;
  margin-bottom: 16px;
}

.page-subtitle {
  font-size: 16px;
  font-weight: 300;
  font-style: italic;
  max-width: 560px;
  line-height: 1.7;
  color: #444;
}

.page-header-accent {
  display: grid;
  grid-template-rows: 60px 1fr 60px;
}

.acc-yellow { background: var(--yellow); border-bottom: var(--line); }
.acc-white  { background: var(--white); }
.acc-red    { background: var(--red); border-top: var(--line); }
.acc-blue   { background: var(--blue); border-top: var(--line); }

/* ============================================================
   SECTION WRAPPER
   ============================================================ */
.section {
  border-bottom: var(--line);
}

.section-inner {
  display: grid;
  grid-template-columns: 200px 1fr;
}

.section-label-col {
  padding: 48px 32px;
  border-right: var(--line);
  display: flex;
  align-items: flex-start;
}

.section-label {
  font-family: var(--fh);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  color: var(--black);
  opacity: 0.4;
}

.section-body {
  padding: 56px 64px;
}

/* ============================================================
   SERVICES GRID (Home)
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--black);
  gap: 4px;
  border-bottom: var(--line);
}

.service-card {
  background: var(--white);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: background 0.15s;
}

.service-card:hover { background: var(--off); }

.service-card-accent {
  height: 6px;
  margin-bottom: 8px;
}

.accent-red    { background: var(--red); }
.accent-yellow { background: var(--yellow); }
.accent-blue   { background: var(--blue); }
.accent-black  { background: var(--black); }

.service-card-title {
  font-family: var(--fh);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.service-card-desc {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.75;
  color: #444;
}

.service-card-link {
  margin-top: auto;
  font-family: var(--fh);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.15s;
}

.service-card-link:hover { color: var(--red); }
.service-card-link::after { content: '→'; font-size: 16px; }

/* ============================================================
   INTRO STRIP (Home)
   ============================================================ */
.intro-strip {
  display: grid;
  grid-template-columns: 80px 1fr 80px;
  border-bottom: var(--line);
  background: var(--black);
  gap: 4px;
}

.intro-strip-accent1 { background: var(--yellow); }
.intro-strip-content {
  background: var(--white);
  padding: 56px 64px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.intro-strip-accent2 { background: var(--red); }

.intro-strip-content p {
  font-size: 17px;
  line-height: 1.8;
  font-weight: 300;
  max-width: 680px;
  color: #333;
}

/* ============================================================
   FEATURED ARTICLE (Home)
   ============================================================ */
.featured-article {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: var(--line);
  background: var(--black);
  gap: 4px;
}

.featured-article-text {
  background: var(--white);
  padding: 56px 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 20px;
}

.featured-article-accent {
  background: var(--blue);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 40px;
}

.featured-label {
  font-family: var(--fh);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 8px;
}

.featured-article-title {
  font-family: var(--fh);
  font-size: 36px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  line-height: 1.1;
  margin-bottom: 16px;
}

.featured-article-excerpt {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.8;
  color: #444;
  margin-bottom: 24px;
}

.featured-meta {
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--white);
  opacity: 0.7;
}

.featured-quote {
  font-family: var(--fh);
  font-size: 22px;
  color: var(--white);
  line-height: 1.4;
}

/* ============================================================
   BUTTONS / LINKS
   ============================================================ */
.btn {
  display: inline-block;
  font-family: var(--fh);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 13px 28px;
  border: var(--line);
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
  background: transparent;
  color: var(--black);
}

.btn:hover { background: var(--black); color: var(--white); }

.btn-filled {
  background: var(--black);
  color: var(--white);
}
.btn-filled:hover { background: var(--red); border-color: var(--red); }

.btn-blue {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.btn-blue:hover { background: var(--black); border-color: var(--black); }

/* ============================================================
   CONTENT TYPOGRAPHY
   ============================================================ */
h2.section-heading {
  font-family: var(--fh);
  font-size: 32px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: var(--line2);
}

h3.sub-heading {
  font-family: var(--fh);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

p.body-text {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.85;
  color: #333;
  margin-bottom: 16px;
}

/* ============================================================
   SERVICE DETAIL LAYOUT
   ============================================================ */
.service-offerings {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  background: var(--black);
  gap: 4px;
  margin-top: 40px;
}

.offering-item {
  background: var(--white);
  padding: 36px 40px;
}

.offering-number {
  font-family: var(--fh);
  font-size: 48px;
  font-weight: 700;
  color: var(--yellow);
  line-height: 1;
  margin-bottom: 12px;
}

.offering-title {
  font-family: var(--fh);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.offering-desc {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.8;
  color: #444;
}

/* ============================================================
   PHILOSOPHY BLOCK
   ============================================================ */
.philosophy-block {
  display: grid;
  grid-template-columns: 3fr 1fr;
  background: var(--black);
  gap: 4px;
  border-top: var(--line);
}

.philosophy-content {
  background: var(--off);
  padding: 56px 64px;
}

.philosophy-accent {
  background: var(--yellow);
  display: flex;
  align-items: flex-end;
  padding: 32px;
}

.philosophy-accent-text {
  font-family: var(--fh);
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--black);
  opacity: 0.6;
  writing-mode: vertical-rl;
}

/* ============================================================
   ARTICLES PAGE
   ============================================================ */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  background: var(--black);
  gap: 4px;
}

.article-card {
  background: var(--white);
  padding: 44px 48px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.article-card:hover { background: var(--off); }

.article-tag {
  font-family: var(--fh);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 4px 12px;
  background: var(--yellow);
  display: inline-block;
  width: fit-content;
}

.article-tag-blue { background: var(--blue); color: var(--white); }
.article-tag-red  { background: var(--red);  color: var(--white); }

.article-title {
  font-family: var(--fh);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  line-height: 1.2;
}

.article-excerpt {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.8;
  color: #555;
  flex-grow: 1;
}

.article-meta {
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #888;
  padding-top: 12px;
  border-top: var(--line2);
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.timeline {
  display: grid;
  grid-template-columns: 1fr;
  background: var(--black);
  gap: 4px;
}

.timeline-item {
  background: var(--white);
  display: grid;
  grid-template-columns: 160px 1fr;
  background: var(--black);
  gap: 4px;
}

.timeline-year {
  background: var(--black);
  color: var(--white);
  font-family: var(--fh);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 32px 24px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.timeline-content {
  background: var(--white);
  padding: 32px 40px;
}

.timeline-role {
  font-family: var(--fh);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.timeline-desc {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.8;
  color: #444;
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--black);
  gap: 4px;
  border-bottom: var(--line);
}

.contact-info {
  background: var(--white);
  padding: 64px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-form-area {
  background: var(--off);
  padding: 64px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.form-label {
  font-family: var(--fh);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--black);
}

.form-input, .form-textarea {
  font-family: var(--fb);
  font-size: 14px;
  font-weight: 300;
  padding: 12px 16px;
  border: var(--line2);
  background: var(--white);
  color: var(--black);
  outline: none;
  transition: border-color 0.15s;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--blue);
}

.form-textarea { resize: vertical; min-height: 120px; }

/* ============================================================
   MONDRIAN DECORATIVE DIVIDER
   ============================================================ */
.mondrian-divider {
  height: 12px;
  display: grid;
  grid-template-columns: 3fr 1fr 2fr 1fr 4fr;
  background: var(--black);
  gap: 3px;
  border-top: var(--line);
  border-bottom: var(--line);
}

.md-r { background: var(--red); }
.md-y { background: var(--yellow); }
.md-b { background: var(--blue); }
.md-w { background: var(--white); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--black);
  border-top: var(--line);
  display: grid;
  grid-template-columns: 14px 1fr 14px;
}

.footer-accent-left  { background: var(--red); }
.footer-accent-right { background: var(--yellow); }

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  padding: 48px 64px;
  gap: 40px;
  border-left: var(--line2);
  border-right: var(--line2);
  border-color: #333;
}

.footer-col-title {
  font-family: var(--fh);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 20px;
  opacity: 0.5;
}

.footer-link {
  display: block;
  font-size: 13px;
  font-weight: 300;
  color: #aaa;
  margin-bottom: 10px;
  transition: color 0.15s;
}

.footer-link:hover { color: var(--yellow); }

.footer-copy {
  font-size: 12px;
  color: #555;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid #333;
  grid-column: 1 / -1;
  letter-spacing: 0.5px;
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-sidebar { display: none; }
  .hero-main { padding: 48px 32px; }
  .hero-name { font-size: 44px; }

  .services-grid { grid-template-columns: 1fr; }
  .featured-article { grid-template-columns: 1fr; }
  .featured-article-accent { min-height: 160px; }

  .section-inner { grid-template-columns: 1fr; }
  .section-label-col { display: none; }

  .page-header { grid-template-columns: 1fr; }
  .page-header-accent { display: none; }
  .page-header-content { padding: 40px 32px; }
  .page-title { font-size: 36px; }

  .service-offerings { grid-template-columns: 1fr; }
  .articles-grid { grid-template-columns: 1fr; }
  .contact-block { grid-template-columns: 1fr; }
  .philosophy-block { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 1fr; }
  .timeline-year { writing-mode: horizontal-tb; justify-content: flex-start; }
  .intro-strip { grid-template-columns: 20px 1fr 20px; }
  .intro-strip-content { padding: 40px 32px; }

  .footer-inner { grid-template-columns: 1fr; padding: 32px; }
  .nav-links .nav-link { padding: 0 12px; font-size: 11px; }
}

@media (max-width: 600px) {
  .nav-link { display: none; }
  .nav-link.nav-contact { display: flex; }
}