/* ==========================================================================
   LAYOUT — containers, section scaffolding
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

section {
  position: relative;
  padding-block: var(--section-pad-y);
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
  max-width: 62ch;
}

/* ---- NAV ---- */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.35rem var(--gutter);
  transition: padding var(--dur-fast) var(--ease-standard),
              background var(--dur-fast) var(--ease-standard),
              border-color var(--dur-fast) var(--ease-standard);
  border-bottom: 1px solid transparent;
}

.site-nav.is-scrolled {
  padding-block: 0.9rem;
  background: var(--color-navy-90);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--color-hairline);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.5vw, 2.25rem);
}

/* ---- HERO ---- */
.hero {
  min-height: clamp(600px, 90svh, 800px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: clamp(5rem, 8vw, 6.5rem);
  padding-bottom: clamp(1.5rem, 3vw, 2.5rem);
  overflow: clip;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: end;
}

.hero-copy { max-width: 640px; }

.hero-avatar {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid var(--color-hairline-strong);
  margin-bottom: 1.1rem;
  flex-shrink: 0;
}

.hero-name {
  font-size: var(--fs-h1);
  line-height: 0.96;
  margin-bottom: 0.7rem;
}

.hero-name-line { display: block; }

.hero-role {
  max-width: 52ch;
  font-size: 1.15rem;
  color: var(--color-white);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.hero-tagline { max-width: 60ch; }

.hero-copy > .eyebrow { margin-bottom: 0.75rem; }

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.75rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-top: clamp(2rem, 4vw, 2.75rem);
  padding-top: clamp(1.5rem, 3vw, 2rem);
  border-top: 1px solid var(--color-hairline);
}

.hero-stats .stat-value { font-size: clamp(1.9rem, 3.6vw, 2.75rem); }

.hero-visual {
  position: relative;
  aspect-ratio: 1/1;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-hairline);
  background: linear-gradient(160deg, var(--color-deep-blue), var(--color-navy));
}

/* ---- THE SCALE ---- */
.scale-section { background: var(--color-deep-blue); }

.scale-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.5rem, 3vw, 2rem);
}

/* ---- THE PROBLEM ---- */
.problem-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.problem-dataset {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  color: var(--color-white);
  margin: 1.75rem 0 2.25rem;
}

.problem-dataset .x { color: var(--color-teal); font-size: 0.6em; }

.problem-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* ---- THE TURNING POINT ---- */
.turning-section { background: var(--color-deep-blue); }

.flow-track {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}

/* ---- MONIMANAGER CASE STUDY ---- */
.two-col-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: start;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.case-media-primary {
  aspect-ratio: 16/10;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.case-media-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.case-media-grid .placeholder-box { aspect-ratio: 4/3; }

.case-chapters {
  display: grid;
  gap: clamp(2.5rem, 5vw, 3.5rem);
}

.case-chapter {
  display: grid;
  grid-template-columns: minmax(140px, 220px) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-top: clamp(2rem, 4vw, 2.75rem);
  border-top: 1px solid var(--color-hairline);
}

.case-chapter:first-child { border-top: none; padding-top: 0; }

/* ---- IMPACT ---- */
.impact-section {
  background: var(--color-teal);
  color: var(--color-navy);
}

.impact-heading {
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  color: var(--color-navy);
}

.impact-stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.5rem, 3vw, 2rem);
  margin-top: clamp(3rem, 6vw, 4.5rem);
  padding-top: clamp(2rem, 4vw, 2.75rem);
  border-top: 1px solid rgba(11, 23, 42, 0.22);
}

/* ---- SELECTED PROJECTS ---- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.5rem, 3vw, 2.25rem);
}

.project-card:first-child { grid-column: 1 / -1; }

.project-card:first-child .project-card-media { aspect-ratio: 21/9; }

/* ---- EXCEL BUSINESS SOLUTIONS ---- */
.excel-section { background: var(--color-deep-blue); }

.excel-project-mount {
  max-width: 640px;
  margin-inline: auto;
}

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

.evolution-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  max-width: 320px;
  margin-inline: auto;
}

.evolution-step {
  width: 100%;
  padding: 0.9rem 1.25rem;
  text-align: center;
  border: 1px solid var(--color-hairline-strong);
  border-radius: var(--radius-sm);
  background: rgba(248, 250, 252, 0.03);
}

.evolution-step--accent {
  border-color: var(--color-teal);
  background: var(--color-teal-tint);
}

.evolution-step-title {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-white);
}

.evolution-step--accent .evolution-step-title { color: var(--color-teal-text); }

.evolution-step-desc {
  font-size: 0.85rem;
  color: var(--color-gray);
  margin-top: 0.25rem;
}

/* ---- EXPERIENCE ---- */
.experience-section { background: var(--color-navy); }

.timeline {
  display: grid;
  gap: 0;
}

.timeline-note {
  margin-top: clamp(2rem, 4vw, 2.75rem);
  padding: 1.5rem clamp(1.5rem, 3vw, 2rem);
  border-left: 2px solid var(--color-teal);
  background: var(--color-navy-70);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* ---- SKILLS ---- */
.skills-section { background: var(--color-deep-blue); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2rem);
}

/* ---- CV ---- */
.cv-section {
  background: var(--color-white);
  color: var(--color-dark-text);
}

.cv-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.75rem;
  max-width: 640px;
  margin-inline: auto;
}

.cv-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }

/* ---- CONTACT ---- */
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

.contact-focus-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.75rem;
}

.contact-channels {
  display: grid;
  gap: 1rem;
}

/* ---- FOOTER ---- */
.site-footer {
  padding-block: 2.25rem;
  border-top: 1px solid var(--color-hairline);
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: var(--fs-body-sm);
  color: var(--color-gray);
}

.footer-links {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--color-gray);
  transition: color var(--dur-fast) var(--ease-standard);
}

.footer-links a:hover { color: var(--color-teal-text); }