/* Component styles */

/* ==========================================================================
   Buttons & Links
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap-min);
  padding: 0 var(--space-3);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: var(--fs-body);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  cursor: pointer;
  box-sizing: border-box;
  text-align: center;
  transition: transform var(--duration-press) var(--ease-out),
              background-color var(--duration-hover) ease,
              color var(--duration-hover) ease;
}

.btn:active {
  transform: scale(var(--press-scale));
}

.btn-primary {
  background: var(--brand-primary);
  color: var(--brand-ink);
  border: 0;
}

.btn-secondary {
  background: transparent;
  color: var(--brand-ink);
  border: 1.5px solid var(--brand-ink);
}

.iconbtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: var(--tap-min);
  min-height: var(--tap-min);
  padding: var(--space-1);
  background: transparent;
  border: 0;
  color: var(--brand-ink);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color var(--duration-hover) ease;
}

.navlink {
  color: var(--brand-ink);
  text-decoration: none;
  font-size: var(--fs-body);
  font-weight: var(--weight-medium);
  padding: var(--space-1) var(--space-1);
  transition: color var(--duration-hover) ease;
}

.footlink {
  color: var(--text-on-ink);
  text-decoration: none;
  font-size: var(--fs-caption);
  padding: var(--space-1) 0;
  transition: color var(--duration-hover) ease;
}

.footlink:focus-visible {
  outline: 2px solid var(--brand-primary);
  outline-offset: 2px;
}

@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover {
    background: var(--brand-primary-hover);
    color: var(--brand-ink);
  }

  .btn-secondary:hover {
    background: var(--brand-ink);
    color: var(--surface);
  }

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

  .footlink:hover {
    color: var(--brand-primary);
  }

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

@media (prefers-reduced-motion: reduce) {
  .btn:active {
    transform: none;
  }
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  position: relative;
  z-index: 100;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-2);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--brand-ink);
}

.brand-link:hover {
  color: var(--brand-ink);
}

.brand-logo-img {
  display: block;
  width: 34px;
  height: 34px;
  object-fit: contain;
  transition: transform var(--duration-hover) var(--ease-spring);
}

.brand-link:hover .brand-logo-img {
  transform: translateY(-2px) rotate(-6deg) scale(1.12);
}

.brand-logo-img--footer {
  filter: drop-shadow(0 0 6px var(--brand-primary));
}

.brand-name {
  font-size: var(--fs-lead);
  font-weight: var(--weight-bold);
  letter-spacing: -0.01em;
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: var(--space-4);
}

.mobile-menu-btn {
  display: inline-flex;
}

@media (min-width: 1024px) {
  .header-container {
    padding-block: var(--space-3);
  }

  .desktop-nav {
    display: flex;
  }

  .mobile-menu-btn {
    display: none;
  }
}

/* Mobile Menu Drawer */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: var(--brand-ink);
  opacity: 0.5;
  z-index: 998;
  display: block;
}

.mobile-menu-overlay[hidden] {
  display: none;
}

.mobile-menu-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 320px;
  background: var(--surface);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: var(--space-3);
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
  transform: translateX(0);
  transition: transform var(--duration-hover) ease;
}

.mobile-menu-drawer[hidden] {
  display: none;
}

.not-found-section {
  min-height: 60vh;
  display: flex;
  align-items: center;
}

.not-found-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: flex-start;
}

.not-found-cta {
  margin-top: var(--space-2);
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-3);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.mobile-nav-links .navlink {
  font-size: var(--fs-body-lg);
  padding: var(--space-1) 0;
  border-bottom: 1px solid var(--surface-alt);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: stretch;
}

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

.hero-ctas {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.hero-visual {
  background: var(--surface-tint);
  border-radius: var(--radius-xl);
  padding: var(--space-3);
  overflow: hidden;
  border: 1px solid var(--border);
  position: relative;
  box-shadow: var(--card-shadow);
  transition: transform 400ms var(--ease-out), box-shadow 400ms var(--ease-out);
  transform-style: preserve-3d;
}

@media (min-width: 1024px) {
  .hero-visual:hover {
    box-shadow: var(--hero-glow);
  }
}

/* Hero Data-Flow Animation */
.diagram-paths-base {
  opacity: 0.35;
}

.flow-pulse {
  stroke-dasharray: 28 200;
  stroke-dashoffset: 200;
  filter: drop-shadow(0 0 4px var(--brand-primary));
}

@media (prefers-reduced-motion: no-preference) {
  .flow-in {
    animation: flowInward var(--duration-flow) cubic-bezier(0.45, 0, 0.55, 1) infinite;
  }
  .flow-out {
    animation: flowOutward var(--duration-flow) cubic-bezier(0.45, 0, 0.55, 1) infinite;
  }

  .flow-delay-0 { animation-delay: 0s; }
  .flow-delay-1 { animation-delay: 0.15s; }
  .flow-delay-2 { animation-delay: 0.3s; }
  .flow-delay-3 { animation-delay: 0.45s; }
  .flow-delay-4 { animation-delay: 0.6s; }

  .flow-delay-5 { animation-delay: 1.1s; }
  .flow-delay-6 { animation-delay: 1.25s; }
  .flow-delay-7 { animation-delay: 1.4s; }
  .flow-delay-8 { animation-delay: 1.55s; }
  .flow-delay-9 { animation-delay: 1.7s; }

  @keyframes flowInward {
    0% { stroke-dashoffset: 200; opacity: 0; }
    20% { opacity: 1; }
    80% { opacity: 1; }
    100% { stroke-dashoffset: 0; opacity: 0.2; }
  }

  @keyframes flowOutward {
    0% { stroke-dashoffset: 0; opacity: 0.2; }
    20% { opacity: 1; }
    80% { opacity: 1; }
    100% { stroke-dashoffset: -200; opacity: 0; }
  }

  .diagram-pulse-ring {
    transform-origin: 300px 198px;
    animation: pulseProfile var(--duration-flow) ease-out infinite;
  }

  .diagram-pulse-ring-outer {
    transform-origin: 300px 198px;
    animation: pulseProfileOuter var(--duration-flow) ease-out infinite 0.4s;
  }

  @keyframes pulseProfile {
    0%, 15% { transform: scale(0.96); opacity: 0.8; }
    50% { transform: scale(1.08); opacity: 0.3; }
    85%, 100% { transform: scale(1); opacity: 0.8; }
  }

  @keyframes pulseProfileOuter {
    0% { transform: scale(1); opacity: 0.6; }
    60% { transform: scale(1.24); opacity: 0; }
    100% { transform: scale(1.24); opacity: 0; }
  }

  .diagram-connector {
    animation: pulseConnector 2.2s ease-in-out infinite;
  }

  @keyframes pulseConnector {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; filter: drop-shadow(0 0 6px var(--brand-primary)); }
  }
}

.hero-diagram-desktop {
  display: none;
  width: 100%;
  height: auto;
}

.hero-diagram-mobile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.diagram-header-label {
  font-size: var(--fs-small);
  font-weight: var(--weight-semibold);
  color: var(--text-muted);
  margin-bottom: var(--space-1);
  align-self: flex-start;
}

.diagram-footer-label {
  font-size: var(--fs-small);
  font-weight: var(--weight-semibold);
  color: var(--text-muted);
  margin-top: var(--space-1);
  align-self: flex-end;
}

.diagram-chips-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  align-self: stretch;
}

.diagram-chip {
  padding: var(--space-1) var(--space-2);
  background: var(--surface);
  border: 1px solid var(--diagram-box-border);
  border-radius: var(--radius-sm);
  font-size: var(--fs-caption);
  font-weight: var(--weight-medium);
  color: var(--brand-ink);
}

.diagram-connector {
  width: 2px;
  height: 28px;
  background: var(--brand-primary);
}

.diagram-central-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 14px var(--space-3);
  background: var(--brand-ink);
  border-radius: 999px;
  box-shadow: 0 0 0 4px var(--surface-tint), 0 0 0 6px var(--brand-primary);
  text-align: center;
}

.diagram-central-title {
  font-size: 12px;
  font-weight: var(--weight-semibold);
  color: var(--brand-primary);
}

.diagram-central-sub {
  font-size: var(--fs-body);
  font-weight: var(--weight-bold);
  color: var(--text-on-ink);
}

@media (min-width: 640px) {
  .hero-ctas {
    flex-direction: row;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .hero-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-5);
    align-items: center;
  }

  .hero-content {
    gap: var(--space-4);
  }

  .hero-diagram-desktop {
    display: block;
  }

  .hero-diagram-mobile {
    display: none;
  }
}

/* ==========================================================================
   Platforms Strip
   ========================================================================== */

.platforms-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-block: var(--space-4);
}

.platforms-label {
  font-size: var(--fs-caption);
  font-weight: var(--weight-semibold);
  color: var(--text-muted);
  white-space: nowrap;
}

.platforms-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: 0;
  list-style: none;
  font-size: var(--fs-body);
  font-weight: var(--weight-medium);
}

@media (min-width: 768px) {
  .platforms-container {
    flex-direction: row;
    align-items: center;
    gap: var(--space-5);
  }

  .platforms-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-1) var(--space-4);
    font-size: var(--fs-body-lg);
  }
}

/* ==========================================================================
   Services Section
   ========================================================================== */

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

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-5);
  }
}

.service-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  border-top: 3px solid var(--brand-primary);
  padding: var(--space-3);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  background: transparent;
  transition: transform var(--duration-hover) var(--ease-out), background-color var(--duration-hover) ease, box-shadow var(--duration-hover) ease;
}

.service-card:hover {
  transform: translateY(-3px);
  background: var(--surface-tint);
  box-shadow: var(--card-shadow);
}

.service-desc {
  font-size: var(--fs-body-lg);
  line-height: var(--lh-body);
  color: var(--text-muted);
}

.ticks {
  margin: var(--space-1) 0 0;
  padding-left: var(--space-3);
  font-size: var(--fs-body);
  line-height: 1.8;
}

.ticks li::marker {
  color: var(--brand-primary);
}

/* ==========================================================================
   Process Section
   ========================================================================== */

.process-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-step {
  display: flex;
  gap: var(--space-3);
  border-top: 1px solid var(--line-on-ink);
  padding-top: var(--space-3);
  transition: transform var(--duration-hover) var(--ease-out);
}

.process-step:hover {
  transform: translateX(4px);
}

.process-num {
  font-size: var(--fs-h2);
  line-height: 1;
  font-weight: var(--weight-bold);
  color: var(--brand-primary);
  flex-shrink: 0;
}

.process-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.process-desc {
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-muted-on-ink);
}

@media (min-width: 1024px) {
  .process-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .process-step {
    flex-direction: column;
    gap: var(--space-2);
  }
}

/* ==========================================================================
   About Section
   ========================================================================== */

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

@media (min-width: 1024px) {
  .founders-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-5);
  }
}

.founder-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: transform var(--duration-hover) var(--ease-out), box-shadow var(--duration-hover) var(--ease-out), border-color var(--duration-hover) ease;
}

.founder-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow);
  border-color: var(--brand-primary);
}

.founder-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-1);
}

.founder-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--surface-tint);
  border: 2px solid var(--brand-primary);
  color: var(--brand-ink);
  font-weight: var(--weight-bold);
  font-size: var(--fs-body);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--duration-hover) var(--ease-spring), background-color var(--duration-hover) ease;
}

.founder-card:hover .founder-avatar {
  transform: scale(1.1);
  background: var(--brand-primary);
  color: var(--brand-ink);
}

.founder-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
}

.founder-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.founder-role {
  font-size: var(--fs-body);
  font-weight: var(--weight-semibold);
  color: var(--link);
}

.founder-bio {
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-muted);
}

.founder-certs {
  font-size: var(--fs-caption);
  line-height: 1.5;
  color: var(--text-muted);
}

.founder-certs strong {
  color: var(--brand-ink);
}

.founder-link {
  font-size: var(--fs-body);
  font-weight: var(--weight-semibold);
  padding: var(--space-1) 0;
  display: inline-block;
}

.cert-link {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: var(--weight-medium);
  transition: color var(--duration-hover) ease;
}

@media (hover: hover) and (pointer: fine) {
  .cert-link:hover {
    color: var(--brand-ink);
  }
}

/* ==========================================================================
   Contact Section & Form
   ========================================================================== */

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

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

.contact-desc {
  font-size: var(--fs-body-lg);
  line-height: var(--lh-body);
  color: var(--text-muted);
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin: var(--space-2) 0 0;
}

.contact-item dt {
  font-size: var(--fs-caption);
  font-weight: var(--weight-semibold);
  color: var(--text-muted);
}

.contact-item dd {
  margin: var(--space-1) 0 0;
  font-size: var(--fs-body-lg);
  color: var(--brand-ink);
}

.contact-item dd a {
  color: var(--link);
  text-decoration: none;
}

.contact-item dd a:hover {
  color: var(--brand-ink);
  text-decoration: underline;
}

.contact-form-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-group label {
  font-size: var(--fs-caption);
  font-weight: var(--weight-semibold);
  color: var(--brand-ink);
}

.field {
  width: 100%;
  box-sizing: border-box;
  min-height: var(--tap-min);
  padding: 12px 14px;
  border: 1px solid var(--field-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: var(--fs-body);
  color: var(--brand-ink);
  background: var(--surface);
  transition: border-color var(--duration-hover) ease;
}

.field:focus {
  border-color: var(--link);
}

textarea.field {
  resize: vertical;
}

.form-footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.form-note {
  font-size: var(--fs-caption);
  line-height: 1.5;
  color: var(--text-muted);
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-5);
    align-items: start;
  }

  .contact-form-panel {
    padding: var(--space-4);
  }

  .form-footer {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .form-footer .btn {
    order: 2;
  }

  .form-footer .form-note {
    order: 1;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--brand-ink);
  color: var(--text-on-ink);
  padding-block: var(--space-5) var(--space-4);
}

.site-footer .brand-link {
  color: var(--text-on-ink);
}

.footer-top {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-tagline {
  font-size: var(--fs-caption);
  color: var(--text-muted-on-ink);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-1) var(--space-3);
}

.footer-bottom {
  border-top: 1px solid var(--line-on-ink);
  padding-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--fs-small);
  line-height: 1.5;
  color: var(--text-muted-on-ink);
}

@media (min-width: 768px) {
  .footer-top {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .footer-nav {
    display: flex;
    gap: var(--space-4);
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    gap: var(--space-4);
  }

  .footer-disclaimer {
    max-width: 640px;
    text-align: right;
  }
}

/* ==========================================================================
   Privacy Policy Page
   ========================================================================== */

.privacy-section {
  padding-block: var(--space-5);
}

.privacy-article {
  max-width: 800px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.privacy-article h1 {
  font-size: var(--fs-h1);
  color: var(--brand-ink);
  margin-bottom: var(--space-1);
}

.privacy-meta {
  font-size: var(--fs-caption);
  color: var(--text-muted);
  border-bottom: 1px solid var(--line);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-2);
}

.privacy-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.privacy-block h2 {
  font-size: var(--fs-h3);
  color: var(--brand-ink);
  margin-top: var(--space-2);
}

.privacy-block p,
.privacy-block ul {
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-muted);
}

.privacy-block ul {
  padding-left: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.privacy-block a {
  color: var(--link);
  text-decoration: underline;
}

.form-privacy-link {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 2px;
}