/* ==========================================================================
   LAYOUT.CSS - Header, Footer, Grid, Page Structure
   Future Software Solutions
   ========================================================================== */

/* --------------------------------------------------------------------------
   Site Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(253, 251, 248, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--space-4);
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-normal);
  color: var(--color-text);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.site-logo:hover {
  opacity: 0.8;
}

.site-logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
}

.site-logo-text {
  display: none;
}

@media (min-width: 480px) {
  .site-logo-text {
    display: inline;
  }
}

/* Navigation */
.site-nav {
  display: none;
  align-items: center;
  gap: var(--space-1);
}

@media (min-width: 768px) {
  .site-nav {
    display: flex;
  }
}

.nav-link {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text);
  background-color: var(--color-bg-warm);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Language Switcher */
.lang-switcher {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  background-color: var(--color-bg-warm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  background-color: var(--color-border);
}

.lang-btn svg {
  width: 16px;
  height: 16px;
}

.lang-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--space-2);
  min-width: 140px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  z-index: var(--z-dropdown);
}

.lang-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  text-align: left;
  color: var(--color-text);
  transition: background-color var(--transition-fast);
}

.lang-option:hover {
  background-color: var(--color-bg-warm);
}

.lang-option.active {
  color: var(--color-primary);
  font-weight: var(--weight-medium);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.mobile-menu-toggle:hover {
  background-color: var(--color-bg-warm);
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
}

@media (min-width: 768px) {
  .mobile-menu-toggle {
    display: none;
  }
}

/* Mobile Navigation Drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-bg);
  z-index: var(--z-modal);
  padding: var(--space-6);
  overflow-y: auto;
}

.mobile-nav.open {
  display: block;
}

@media (min-width: 768px) {
  .mobile-nav {
    display: none !important;
  }
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
}

.mobile-nav-link {
  display: block;
  padding: var(--space-4);
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  color: var(--color-text);
  background-color: var(--color-bg-card);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background-color: var(--color-bg-warm);
}

.mobile-lang-section h3 {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}

.mobile-lang-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.mobile-lang-btn {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-lang-btn:hover,
.mobile-lang-btn.active {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Site Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-bg-footer);
  color: var(--color-text-inverse);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-8);
  }
}

/* Footer Brand */
.footer-brand {
  max-width: 320px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.footer-logo img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
}

.footer-description {
  font-size: var(--text-sm);
  color: rgba(253, 251, 248, 0.7);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
}

/* Footer Links */
.footer-section h4 {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
  color: rgba(253, 251, 248, 0.5);
}

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

.footer-link {
  font-size: var(--text-sm);
  color: rgba(253, 251, 248, 0.8);
  transition: color var(--transition-fast);
}

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

/* Footer Bottom */
.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--text-sm);
  color: rgba(253, 251, 248, 0.5);
}

@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-legal-links {
  display: flex;
  gap: var(--space-6);
}

.footer-legal-link {
  color: rgba(253, 251, 248, 0.5);
  transition: color var(--transition-fast);
}

.footer-legal-link:hover {
  color: var(--color-text-inverse);
}

/* --------------------------------------------------------------------------
   Grid System
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--space-6);
}

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

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

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

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

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

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

/* App Grid (2 columns on tablet, 3 on desktop) */
.app-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: repeat(1, 1fr);
}

@media (min-width: 640px) {
  .app-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .app-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --------------------------------------------------------------------------
   Hero Layouts
   -------------------------------------------------------------------------- */
.hero {
  padding: var(--space-16) 0;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.hero-content {
  max-width: 540px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-full);
}

.hero-title {
  margin-bottom: var(--space-4);
}

.hero-description {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

.hero-meta-dot {
  width: 4px;
  height: 4px;
  background-color: var(--color-text-light);
  border-radius: var(--radius-full);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-devices {
  position: relative;
  width: 100%;
  max-width: 500px;
}

.hero-device {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.hero-device img {
  width: 100%;
  height: auto;
  display: block;
}

/* Stacked devices layout */
.hero-devices-stack {
  position: relative;
  padding: var(--space-8);
}

.hero-device-main {
  position: relative;
  z-index: 2;
  transform: rotate(-2deg);
}

.hero-device-secondary {
  position: absolute;
  width: 45%;
  right: -15%;
  top: 50%;
  transform: translateY(-50%) rotate(4deg);
  z-index: 3;
}

/* --------------------------------------------------------------------------
   Section Layouts
   -------------------------------------------------------------------------- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-12);
}

.section-eyebrow {
  display: inline-block;
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-description {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

/* Alternate Section Background */
.section-alt {
  background-color: var(--color-bg-warm);
}

/* --------------------------------------------------------------------------
   Two Column Layout
   -------------------------------------------------------------------------- */
.two-col {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 768px) {
  .two-col {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.two-col-reverse {
  direction: ltr;
}

@media (min-width: 768px) {
  .two-col-reverse .two-col-content {
    order: 2;
  }

  .two-col-reverse .two-col-visual {
    order: 1;
  }
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact-section {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-warm) 100%);
}

.contact-grid {
  display: grid;
  gap: var(--space-12);
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-16);
  }
}

.contact-info h2 {
  margin-bottom: var(--space-4);
}

.contact-info p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.contact-form-wrapper {
  background-color: var(--color-bg-card);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* --------------------------------------------------------------------------
   App Page Layout
   -------------------------------------------------------------------------- */
.app-hero {
  padding: var(--space-12) 0 var(--space-16);
}

.app-hero-inner {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .app-hero-inner {
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-12);
    align-items: start;
  }
}

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

.app-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-2);
}

.app-icon-large {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.app-title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-1);
}

.app-tagline {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

.app-description {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

.app-store-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.app-attribution {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-top: var(--space-4);
}

/* App Screenshots Gallery */
.app-gallery {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.app-screenshot {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-base);
}

.app-screenshot:hover {
  transform: scale(1.02);
}

.app-screenshot img {
  width: 100%;
  height: auto;
}

/* --------------------------------------------------------------------------
   Breadcrumb
   -------------------------------------------------------------------------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.breadcrumb-link {
  transition: color var(--transition-fast);
}

.breadcrumb-link:hover {
  color: var(--color-primary);
}

.breadcrumb-separator {
  color: var(--color-text-light);
}

.breadcrumb-current {
  color: var(--color-text);
  font-weight: var(--weight-medium);
}