/* =========================================================================
   GEO SOLUTIONS — LAYOUT v4.0
   Generated: May 2026
   Depends on: tokens.css, base.css, components.css

   Changes from v1.1:
     - Container max-width: 1200px → 1400px
     - Section padding: 80-120px → 250px desktop / 100px tablet / 60px mobile
     - Nav becomes glass-fixed (backdrop-filter blur)
     - Footer width matches container, 4-column grid
   ========================================================================= */

/* =========================================================================
   1. CONTAINER
   ========================================================================= */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--section-pad-x);
  padding-right: var(--section-pad-x);
  position: relative;
}

.container-narrow {
  width: 100%;
  max-width: var(--container-max-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--section-pad-x);
  padding-right: var(--section-pad-x);
}

.container-fluid {
  width: 100%;
  padding-left: var(--section-pad-x);
  padding-right: var(--section-pad-x);
}

/* =========================================================================
   2. SECTION
   Generous padding per Altrum spec
   ========================================================================= */

.section {
  padding-top: var(--section-pad-y);
  padding-bottom: var(--section-pad-y);
  position: relative;
  background-color: var(--color-bg-base);
}

.section--no-top    { padding-top: 0; }
.section--no-bottom { padding-bottom: 0; }
.section--small {
  padding-top: var(--divider-xxl);
  padding-bottom: var(--divider-xxl);
}

.section--surface-1 { background-color: var(--color-bg-surface-1); }
.section--surface-2 { background-color: var(--color-bg-surface-2); }

/* Hero section — uses min-height instead of padding for vertical centering */
.section--hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 120px;  /* clears glass nav */
  padding-bottom: var(--divider-xxl);
}

.section--hero-short {
  min-height: 65vh;
  padding-top: 120px;
}

@media (max-width: 991px) {
  .section {
    padding-top: var(--section-pad-y-tablet);
    padding-bottom: var(--section-pad-y-tablet);
  }
  .section--hero {
    min-height: 700px;
    padding-top: 78px;
  }
  .section--hero-short {
    min-height: 40vh;
  }
}

@media (max-width: 767px) {
  .section {
    padding-top: var(--section-pad-y-mobile);
    padding-bottom: var(--section-pad-y-mobile);
  }
}

/* =========================================================================
   3. GRID SYSTEM
   ========================================================================= */

.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

.grid-12 {
  grid-template-columns: repeat(12, 1fr);
}

/* Asymmetric splits */
.grid-1-2 { grid-template-columns: 1fr 2fr; }
.grid-2-1 { grid-template-columns: 2fr 1fr; }
.grid-1-3 { grid-template-columns: 1fr 3fr; }

/* Gap variants */
.grid-gap-sm  { gap: var(--space-3); }
.grid-gap-md  { gap: var(--space-6); }
.grid-gap-lg  { gap: var(--space-8); }
.grid-gap-xl  { gap: var(--space-12); }

@media (max-width: 991px) {
  .grid-3,
  .grid-4,
  .grid-5,
  .grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .grid-2,
  .grid-3,
  .grid-4,
  .grid-5,
  .grid-6,
  .grid-1-2,
  .grid-2-1,
  .grid-1-3 {
    grid-template-columns: 1fr;
  }
}

/* =========================================================================
   4. FLEX UTILITIES
   ========================================================================= */

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

.stack-row {
  display: flex;
  flex-direction: row;
}

.stack-gap-sm  > * + * { margin-top: var(--space-2); }
.stack-gap-md  > * + * { margin-top: var(--space-4); }
.stack-gap-lg  > * + * { margin-top: var(--space-6); }
.stack-gap-xl  > * + * { margin-top: var(--space-8); }
.stack-gap-2xl > * + * { margin-top: var(--space-12); }

.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-end     { display: flex; justify-content: flex-end; align-items: center; }
.flex-center  { display: flex; justify-content: center; align-items: center; }
.flex-start   { display: flex; justify-content: flex-start; align-items: center; }

/* =========================================================================
   5. NAV — GLASS FIXED (Altrum signature)
   ========================================================================= */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: 110px;
  display: flex;
  align-items: center;
  background-color: rgba(7, 7, 7, 0.0);
  backdrop-filter: var(--blur-xl);
  -webkit-backdrop-filter: var(--blur-xl);
  /* Bottom fade-out gradient mask — Altrum signature */
  -webkit-mask-image: linear-gradient(black 50%, transparent 100%);
  mask-image: linear-gradient(black 50%, transparent 100%);
  transition: background-color var(--duration-medium) var(--ease-default),
              height var(--duration-medium) var(--ease-default);
}

.nav.is-scrolled {
  background-color: var(--color-glass-nav-bg);
  height: 80px;
}

.nav__inner {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--section-pad-x);
  padding-right: var(--section-pad-x);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-8);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text-primary);
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  font-size: var(--text-h4);
  letter-spacing: var(--tracking-tight);
}

.nav__brand-mark {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav__brand-mark svg {
  width: 100%;
  height: 100%;
  display: block;
}

.nav__brand-descriptor {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: var(--weight-regular);
  color: var(--color-text-tertiary);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  margin-left: var(--space-2);
  display: none;  /* show ≥1024px */
}

@media (min-width: 1024px) {
  .nav__brand-descriptor {
    display: inline;
  }
}

.nav__menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  list-style: none;
}

.nav__link {
  font-family: var(--font-display);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  letter-spacing: -0.4px;
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  position: relative;
  transition: color var(--duration-fast) var(--ease-default);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-text-primary);
}

.nav__link--active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: var(--space-3);
  right: var(--space-3);
  height: 1px;
  background-color: var(--color-accent);
}

/* Dropdown indicator */
.nav__link--dropdown::after {
  content: "▾";
  margin-left: var(--space-1);
  font-size: 0.7em;
  opacity: 0.6;
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.65rem 1.1rem;
  background-color: var(--color-accent);
  color: var(--color-text-on-accent);
  font-family: var(--font-display);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.4px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: opacity var(--duration-fast) var(--ease-default);
}

.nav__cta:hover {
  opacity: 0.85;
  color: var(--color-text-on-accent);
}

/* Mobile hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 18px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

.nav__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: transform var(--duration-medium) var(--ease-default),
              opacity var(--duration-fast) var(--ease-default);
}

.nav__hamburger.is-open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav__hamburger.is-open span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.is-open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

@media (max-width: 991px) {
  .nav {
    height: 70px;
  }

  .nav__menu,
  .nav__cta {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }
}

/* Mobile menu overlay */
.nav-mobile-overlay {
  position: fixed;
  top: 0;
  right: 0;
  width: 90vw;
  max-width: 420px;
  height: 100vh;
  z-index: calc(var(--z-nav) - 1);
  background-color: #151515;
  padding: 90px var(--space-6) var(--space-8);
  transform: translateX(100%);
  transition: transform var(--duration-medium) var(--ease-default);
  overflow-y: auto;
}

.nav-mobile-overlay.is-open {
  transform: translateX(0);
}

.nav-mobile-overlay__menu {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  list-style: none;
  margin-bottom: var(--space-8);
}

.nav-mobile-overlay__link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border-strong);
  font-family: var(--font-display);
  font-size: var(--text-display-md);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  letter-spacing: var(--tracking-tight);
  text-decoration: none;
}

/* Page overlay when mobile menu is open */
.page-overlay {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-nav) - 2);
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: var(--blur-md);
  -webkit-backdrop-filter: var(--blur-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-medium) var(--ease-default);
}

.page-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* =========================================================================
   6. FOOTER
   ========================================================================= */

.footer {
  background-color: var(--color-bg-base);
  padding-top: var(--divider-3xl);
  padding-bottom: var(--space-8);
  border-top: 1px solid var(--color-border-subtle);
}

.footer__inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--section-pad-x);
  padding-right: var(--section-pad-x);
}

.footer__main {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--divider-xxl);
}

@media (max-width: 991px) {
  .footer__main {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
}

@media (max-width: 479px) {
  .footer__main {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer__brand-mark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.footer__brand-icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.footer__brand-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.footer__brand-text {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-primary);
  line-height: 1;
}

.footer__statement {
  font-size: var(--text-body);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
  max-width: 320px;
}

.footer__col-title {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__list a {
  color: var(--color-text-secondary);
  font-size: var(--text-body-sm);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-default);
}

.footer__list a:hover {
  color: var(--color-text-primary);
}

/* CTA link variant — accent treatment for Discovery Audit */
.footer__cta-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-accent) !important;
  font-weight: var(--weight-semibold);
}

.footer__cta-link::after {
  content: "↗";
  font-size: 0.875em;
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border-subtle);
  font-family: var(--font-mono);
  font-size: var(--text-mono-sm);
  color: var(--color-text-tertiary);
  letter-spacing: var(--tracking-wide);
}

@media (max-width: 767px) {
  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }
}

.footer__copyright {
  color: var(--color-text-tertiary);
}

.footer__legal {
  display: flex;
  gap: var(--space-6);
}

.footer__legal a {
  color: var(--color-text-tertiary);
  text-decoration: none;
}

.footer__legal a:hover {
  color: var(--color-text-secondary);
}

/* =========================================================================
   7. PAGE WRAPPER
   ========================================================================= */

.page-wrapper {
  position: relative;
  z-index: var(--z-elevated);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

/* =========================================================================
   8. MEGA LET'S TALK BLOCK (Altrum-style, above footer on all pages)
   ========================================================================= */

.mega-talk {
  padding: 120px 0 80px;
}

.mega-talk__inner {
  background-color: var(--color-bg-surface-1);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-xl);
  padding: 60px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.mega-talk__title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 11rem);
  font-weight: var(--weight-semibold);
  line-height: 0.9;
  letter-spacing: var(--tracking-tighter);
  color: var(--color-text-primary);
  margin: 0;
  flex: 1;
}

.mega-talk__title-mark {
  font-size: 0.7em;
  display: inline-block;
  vertical-align: 0.05em;
  margin-right: 0.05em;
  color: var(--color-text-secondary);
  font-weight: var(--weight-medium);
}

@media (max-width: 991px) {
  .mega-talk {
    padding: 80px 0 48px;
  }
  .mega-talk__inner {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-6);
    padding: var(--space-8) var(--space-6);
  }
}

/* =========================================================================
   9. TALK CARD (used in mega-talk + service hero — Altrum-style)
   ========================================================================= */

.talk-card {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--color-bg-surface-2);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 12px;
  text-decoration: none;
  min-width: 240px;
  transition: all var(--duration-medium) var(--ease-default);
}

.talk-card:hover {
  background-color: var(--color-bg-surface-3);
  border-color: var(--color-accent);
}

.talk-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-surface-3);
  /* soft green halo + Geo Solutions logo (data URI — no extra HTTP request) */
  background-image:
    radial-gradient(circle at 50% 50%, rgba(130, 255, 140, 0.22), transparent 65%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 575 575' fill='none'><path d='M467.188 0H107.812C48.2693 0 0 48.2693 0 107.812V467.188C0 526.731 48.2693 575 107.812 575H467.188C526.731 575 575 526.731 575 467.188V107.812C575 48.2693 526.731 0 467.188 0Z' fill='%2382FF8C'/><path d='M107.812 224.609V107.812H224.609' stroke='%230F1F14' stroke-width='42'/><path d='M350.391 467.188H467.188V350.391' stroke='%230F1F14' stroke-width='42'/><path d='M382.734 260.547H192.266C185.319 260.547 179.688 266.178 179.688 273.125V301.875C179.688 308.822 185.319 314.453 192.266 314.453H382.734C389.681 314.453 395.312 308.822 395.312 301.875V273.125C395.312 266.178 389.681 260.547 382.734 260.547Z' fill='%230F1F14'/></svg>");
  background-repeat: no-repeat, no-repeat;
  background-position: center, center;
  background-size: 100% 100%, 78% 78%;
  flex-shrink: 0;
}

.talk-card__content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.talk-card__slots {
  font-family: var(--font-mono);
  font-size: var(--text-mono-sm);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wide);
}

.talk-card__name {
  font-family: var(--font-display);
  font-size: var(--text-body);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  line-height: 1.2;
}

.talk-card__role {
  font-size: var(--text-mono-sm);
  color: var(--color-text-tertiary);
  line-height: 1.2;
}

.talk-card__arrow {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-surface-3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-text-primary);
  font-size: 14px;
}

@media (max-width: 479px) {
  .talk-card {
    min-width: 0;
    width: 100%;
  }
}

/* =========================================================================
   END OF layout.css v4.1
   ========================================================================= */