/* =============================================
   LAYOUT.CSS — Container, Sections, Grids, Page Layout
   SM Technical Consultancy
   ============================================= */

/* === CONTAINER === */
.container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

@media (max-width: 640px) {
  .container {
    padding: 0 var(--space-4);
  }
}

/* === SECTIONS === */
.section {
  padding: var(--space-12) 0;
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-10) 0;
  }
}

/* Section colour variants */
.section--dark {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

.section--dark p {
  color: rgba(255,255,255,0.85);
}

.section--mid {
  background-color: var(--color-navy-mid);
  color: var(--color-white);
}

.section--mid h1,
.section--mid h2,
.section--mid h3,
.section--mid h4 {
  color: var(--color-white);
}

.section--mid p {
  color: rgba(255,255,255,0.85);
}

.section--light {
  background-color: var(--color-off-white);
  color: var(--color-navy);
}

.section--white {
  background-color: var(--color-white);
  color: var(--color-navy);
}

/* === SECTION HEADER === */
.section__header {
  text-align: center;
  max-width: var(--max-width-text);
  margin: 0 auto var(--space-8);
}

.section__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-4);
}

.section__lead {
  font-size: var(--font-size-md);
  line-height: var(--line-height-body);
  opacity: 0.85;
}

/* === GRID UTILITIES === */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* === TWO-COLUMN LAYOUTS === */
/* 3:2 split (prose + sidebar) */
.two-col {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-8);
  align-items: start;
}

/* 7:3 split (article + narrow sidebar) */
.article-layout {
  display: grid;
  grid-template-columns: 7fr 3fr;
  gap: var(--space-8);
  align-items: start;
}

@media (max-width: 768px) {
  .two-col,
  .article-layout {
    grid-template-columns: 1fr;
  }
}

/* === HERO LAYOUTS === */
.hero--home {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-16) 0 var(--space-12);
  position: relative;
  overflow: hidden;
}

/* Subtle grid texture */
.hero--home::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* Gold bottom border */
.hero--home::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

/* Left-aligned two-column hero */
.hero__split {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--space-10);
  align-items: center;
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 var(--space-5);
  width: 100%;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__title {
  font-size: clamp(2.4rem, 4.5vw, 3.75rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.1;
  color: var(--color-white);
  margin-bottom: var(--space-5);
  letter-spacing: -0.02em;
}

.hero__title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero__lead {
  font-size: var(--font-size-md);
  line-height: var(--line-height-body);
  color: rgba(255, 255, 255, 0.72);
  max-width: 520px;
  margin-bottom: 0;
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-top: var(--space-6);
}

/* Right-side credential panel */
.hero__credential {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-top: 2px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.hero__credential-title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-5);
}

.hero__credential-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.hero__credential-item:last-of-type {
  border-bottom: none;
}

.hero__credential-badge {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
  background: rgba(46, 139, 192, 0.12);
  border: 1px solid rgba(46, 139, 192, 0.3);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 1px;
}

.hero__credential-text {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.65);
  line-height: 1.4;
}

.hero__divider {
  height: 1px;
  background: rgba(255,255,255,0.08);
  margin: var(--space-4) 0;
}

.hero__stat-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
}

.hero__stat {
  text-align: center;
}

.hero__stat-value {
  display: block;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  line-height: 1;
  margin-bottom: var(--space-1);
}

.hero__stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-slate);
}

/* Inner hero — left-aligned */
.hero--inner {
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-16) 0 var(--space-8);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}

.hero--inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero--inner .hero__content {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 var(--space-5);
  width: 100%;
  position: relative;
  z-index: 1;
}

.hero--inner .hero__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-white);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.hero--inner .hero__lead {
  max-width: 620px;
  color: rgba(255,255,255,0.7);
  font-size: var(--font-size-md);
  line-height: var(--line-height-body);
  margin-bottom: 0;
}

@media (max-width: 960px) {
  .hero__split {
    grid-template-columns: 1fr;
  }

  .hero__credential {
    max-width: 480px;
  }
}

@media (max-width: 768px) {
  .hero__title {
    font-size: var(--font-size-2xl);
  }

  .hero--inner .hero__title {
    font-size: var(--font-size-xl);
  }
}

/* === STATS BAR === */
.stats-bar {
  background-color: var(--color-navy-mid);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-6) 0;
}

.stats-bar__grid {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-5);
}

/* === CTA BANNER === */
.cta-banner {
  background-color: var(--color-accent);
  padding: var(--space-12) 0;
  text-align: center;
}

.cta-banner__title {
  font-size: var(--font-size-2xl);
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.cta-banner__lead {
  font-size: var(--font-size-md);
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
  margin: 0 auto var(--space-6);
}

.cta-banner__actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* === NAV STRUCTURAL === */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-height);
  background-color: var(--color-navy);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.nav--scrolled {
  box-shadow: var(--shadow-nav);
}

/* === FOOTER STRUCTURAL === */
.footer {
  background-color: var(--color-navy);
  color: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding: var(--space-5) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

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

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

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* === PROCESS STEPS LAYOUT === */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(12.5% + 20px);
  right: calc(12.5% + 20px);
  height: 1px;
  border-top: 1px dashed var(--color-border);
  z-index: 0;
}

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

  .steps::before {
    display: none;
  }
}

/* === RETAINER CALLOUT === */
.retainer-callout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: start;
}

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