/* ═══════════════════════════════════════════════════════
   STEINKERNEL SYSTEMS — Section Styles
   ═══════════════════════════════════════════════════════ */

/* ─── HERO ─── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--charcoal);
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero__canvas canvas {
  width: 100%;
  height: 100%;
}

.hero__gradient-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(198, 120, 50, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(26, 154, 139, 0.06) 0%, transparent 50%),
    linear-gradient(to bottom, transparent 60%, rgba(28, 29, 34, 0.4) 100%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 3;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-top: 8rem;
}

.hero__eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--navy-ice);
  margin-bottom: var(--space-lg);
  opacity: 0;
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--white);
  max-width: 12ch;
  margin-bottom: var(--space-lg);
}

.hero__title .line {
  display: block;
  overflow: hidden;
}

.hero__title .line-inner {
  display: block;
  opacity: 0;
  transform: translateY(100%);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.6);
  max-width: 50ch;
  line-height: var(--leading-normal);
  margin-bottom: var(--space-2xl);
  opacity: 0;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  opacity: 0;
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  opacity: 0;
}

.hero__scroll-text {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--navy-ice), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

@media (max-width: 768px) {
  .hero { min-height: 100svh; }
  .hero__content { padding-top: 6rem; }
  .hero__title { max-width: 100%; }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .hero__scroll-indicator { display: none; }
}

/* ─── IDENTITY STATEMENT ─── */
.identity {
  padding-block: clamp(6rem, 5rem + 5vw, 14rem);
  display: flex;
  align-items: center;
  min-height: 80vh;
}

.identity__text {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tight);
  color: var(--charcoal);
  max-width: 18ch;
}

.identity__text .word-accent {
  color: var(--strong-red);
  position: relative;
  display: inline-block;
}

.identity__text .word-accent::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--strong-red);
  opacity: 0.8;
  border-radius: 2px;
}

.identity__text .reveal-line {
  display: block;
  overflow: hidden;
}

.identity__text .reveal-inner {
  display: block;
  transform: translateY(105%);
  transition: transform 0.9s var(--ease-out);
}

.identity__text .reveal-inner.visible {
  transform: translateY(0);
}

.identity__annotation {
  margin-top: var(--space-2xl);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--steel);
}

/* ─── SOLUTIONS ─── */
.solutions {
  padding-block: var(--space-section);
}

.solutions__header {
  margin-bottom: var(--space-3xl);
}

.solutions__eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--deep-burgundy);
  margin-bottom: var(--space-sm);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.solutions__eyebrow::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--strong-red);
}

.solutions__title {
  font-size: var(--text-3xl);
  max-width: 20ch;
}

/* Solution Items — each with unique layout */
.solution-item {
  padding-block: var(--space-2xl);
  border-top: 1px solid var(--mist);
}

.solution-item:last-child {
  border-bottom: 1px solid var(--mist);
}

.solution-item--dark {
  background: var(--charcoal);
  color: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-2xl);
  margin-block: var(--space-lg);
  border: none;
}

.solution-item--dark + .solution-item {
  border-top: none;
}

.solution-item--dark .solution-card__desc {
  color: rgba(255, 255, 255, 0.6);
}

.solution-item--accent-border {
  border-left: 3px solid var(--navy);
  padding-left: var(--space-lg);
}

.solution-item__visual {
  position: relative;
}

/* ─── SYSTEM MAP (Engineered Systems Architecture) ─── */
/* Specific layout, interactive nodes, and connections are in system-map.css */
.section--system-map {
  position: relative;
  overflow: hidden;
  padding-block: clamp(5.5rem, 4.5rem + 5vw, 10rem);
  background-color: var(--charcoal);
  color: var(--white);
}

/* ─── WHAT WE BUILD (CAPABILITIES) ─── */
.capabilities {
  padding-block: var(--space-section);
}

.capabilities__header {
  margin-bottom: var(--space-3xl);
}

/* ─── APPROACH ─── */
.approach {
  padding-block: var(--space-section);
  position: relative;
  background-color: var(--surface-warm);
  border-top: 1px solid rgba(0, 48, 73, 0.06);
  border-bottom: 1px solid rgba(0, 48, 73, 0.06);
}

.approach__columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(2rem, 1.5rem + 2vw, 4rem);
  position: relative;
  z-index: 1;
}

.approach__col {
  position: relative;
  transition: transform var(--duration-normal) var(--ease-out);
}

.approach__col:hover {
  transform: translateY(-4px);
}

/* Large, sculptural step numerals — clean, independent, unobstructed */
.approach__step-number {
  font-family: var(--font-display);
  font-size: clamp(3.75rem, 3.2rem + 2vw, 5.5rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-md);
  transition: transform var(--duration-normal) var(--ease-out), color var(--duration-normal) var(--ease-out);
}

.approach__col:hover .approach__step-number {
  transform: translateY(-2px);
}

.approach__step-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--deep-navy);
  margin-bottom: var(--space-md);
  position: relative;
  display: inline-block;
}

.approach__step-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 44px;
  height: 3px;
  border-radius: 2px;
  transition: width var(--duration-normal) var(--ease-out);
}

.approach__col:hover .approach__step-title::after {
  width: 68px;
}

.approach__step-desc {
  color: var(--steel);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  max-width: 38ch;
}

/* ─── Color Progression per Stage ─── */
/* Phase 01: DESIGN -> Deep Navy / Muted Blue */
.approach__col--design .approach__step-number {
  color: var(--deep-navy);
}
.approach__col--design .approach__step-title::after {
  background: var(--muted-blue);
}
.approach__col--design:hover .approach__step-number {
  color: var(--muted-blue);
}

/* Phase 02: INTEGRATE -> Warm Amber (Energetic bridge) */
.approach__col--integrate .approach__step-number {
  color: var(--warm-amber);
}
.approach__col--integrate .approach__step-title::after {
  background: var(--warm-amber);
}
.approach__col--integrate:hover .approach__step-number {
  color: #D98200;
}

/* Phase 03: DEPLOY -> Deep Burgundy / Strong Red (Hardened production) */
.approach__col--deploy .approach__step-number {
  color: var(--strong-red);
}
.approach__col--deploy .approach__step-title::after {
  background: var(--deep-burgundy);
}
.approach__col--deploy:hover .approach__step-number {
  color: var(--deep-burgundy);
}

@media (max-width: 900px) {
  .approach__columns {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
}

/* ─── CTA / CONTACT ─── */
.cta-section {
  padding-block: clamp(6rem, 5rem + 5vw, 12rem);
  text-align: center;
  position: relative;
  background:
    radial-gradient(circle at 50% 25%, rgba(252, 163, 17, 0.09) 0%, transparent 60%),
    radial-gradient(circle at 50% 45%, #003049 0%, #002133 70%, #00121C 100%);
}

.cta-section__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(151, 184, 214, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(151, 184, 214, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.cta-section__title {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  text-wrap: balance;
  max-width: 24ch;
  margin-inline: auto;
  margin-bottom: var(--space-md);
  color: var(--white);
}

.cta-section__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 400;
  line-height: var(--leading-normal);
  color: rgba(255, 255, 255, 0.72);
  max-width: 46ch;
  margin-inline: auto;
  margin-bottom: var(--space-2xl);
  text-wrap: pretty;
}

/* ─── FOOTER ─── */
.footer {
  padding-block: var(--space-3xl) var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background-color: #031326;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1.2fr;
  gap: var(--space-2xl);
  align-items: start;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__brand-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.footer__logo-mark {
  width: 64px;
  height: 64px;
  border-radius: var(--border-radius-md);
  background: #02203E;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1.5px solid rgba(142, 172, 223, 0.35);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
  flex-shrink: 0;
  transition: transform var(--duration-fast), border-color var(--duration-fast);
}

.footer__logo-mark:hover {
  transform: scale(1.03);
  border-color: rgba(142, 172, 223, 0.6);
}

.footer__logo-img {
  width: 90%;
  height: 90%;
  object-fit: cover;
  object-position: 50% 38%;
  transform: scale(1.2);
  transform-origin: 50% 38%;
  display: block;
}

.footer__brand-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.footer__company {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--white);
  letter-spacing: var(--tracking-tight);
}

.footer__tagline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--navy-ice);
  opacity: 0.85;
}

.footer__desc {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
  max-width: 44ch;
}

.footer__col {
  display: flex;
  flex-direction: column;
}

.footer__col-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--navy-ice);
  margin-bottom: var(--space-md);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.footer__col-title::after {
  content: "";
  display: inline-block;
  width: 16px;
  height: 2px;
  background-color: var(--crimson);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer__link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--duration-fast), transform var(--duration-fast);
  display: inline-block;
}

.footer__link:hover {
  color: var(--white);
  transform: translateX(3px);
}

/* Contact Area */
.footer__contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer__contact-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.45);
}

.footer__contact-link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--white);
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--duration-fast);
  word-break: break-all;
}

.footer__contact-link:hover {
  color: var(--crimson);
}

.footer__bottom {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__copyright {
  text-align: center;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
}

@media (max-width: 1024px) {
  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
  .footer__brand {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .footer__brand {
    grid-column: span 1;
  }
}