/* PingClaw — Signal palette, per the style guide (April 2026). */

:root {
  /* Backgrounds */
  --pc-bg:        #080e0c;
  --pc-surface:   #0f1a18;
  --pc-surface-2: #162824;
  --pc-surface-3: #1e3530;

  /* Borders */
  --pc-border:    #1a2e2a;
  --pc-border-2:  #243e38;

  /* Accent — teal */
  --pc-accent:    #00c2a0;
  --pc-accent-2:  #00856e;
  --pc-accent-3:  #00604f;
  --pc-accent-bg: #071a16;

  /* Text */
  --pc-text:      #c0f0e8;
  --pc-text-2:    #7ab8ac;
  --pc-text-3:    #3d6e66;
  --pc-text-4:    #204840;

  /* Semantic */
  --pc-success:   #00c2a0;
  --pc-warning:   #c89a1a;
  --pc-warning-bg:#1a1400;
  --pc-error:     #c84040;
  --pc-error-bg:  #1a0808;
  --pc-info:      #3a9fd8;
  --pc-info-bg:   #071420;

  /* Fonts */
  --pc-font-display: 'Syne', system-ui, sans-serif;
  --pc-font-body:    'DM Sans', system-ui, sans-serif;
  --pc-font-mono:    'IBM Plex Mono', 'Fira Mono', monospace;

  /* Type scale */
  --pc-type-hero:    clamp(64px, 10vw, 112px);
  --pc-type-h1:      clamp(36px, 5.2vw, 56px);
  --pc-type-h2:      clamp(28px, 3.8vw, 40px);
  --pc-type-h3:      22px;
  --pc-type-lg:      20px;
  --pc-type-base:    17px;
  --pc-type-sm:      14px;
  --pc-type-xs:      12px;
  --pc-type-mono:    14px;
  --pc-type-mono-sm: 12px;

  /* Radius */
  --pc-radius-sm:  4px;
  --pc-radius-md:  8px;
  --pc-radius-lg:  12px;
  --pc-radius-xl:  16px;
  --pc-radius-full: 9999px;

  /* Motion */
  --pc-duration-fast:   100ms;
  --pc-duration-base:   150ms;
  --pc-duration-slow:   250ms;
  --pc-duration-reveal: 600ms;
  --pc-ease:     ease;
  --pc-ease-out: cubic-bezier(0.0, 0.0, 0.2, 1);
}

@media (prefers-color-scheme: light) {
  :root {
    --pc-bg:        #f2f7f6;
    --pc-surface:   #ffffff;
    --pc-surface-2: #e8f0ee;
    --pc-surface-3: #dce6e4;
    --pc-border:    #c8d8d4;
    --pc-border-2:  #b0c4be;
    --pc-accent:    #009e82;
    --pc-accent-2:  #007a66;
    --pc-accent-3:  #e0f5f0;
    --pc-accent-bg: #e8f8f4;
    --pc-text:      #0a1e1a;
    --pc-text-2:    #3d5c54;
    --pc-text-3:    #6b8f86;
    --pc-text-4:    #9bb5ae;
    --pc-success:   #009e82;
    --pc-warning:   #9e7a00;
    --pc-warning-bg:#fdf6e0;
    --pc-error:     #b83030;
    --pc-error-bg:  #fdeaea;
    --pc-info:      #2a7fb0;
    --pc-info-bg:   #e8f4fc;
  }
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--pc-font-body);
  background: var(--pc-bg);
  color: var(--pc-text);
  font-size: var(--pc-type-base);
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ----- Layout ----- */

.pc-container       { max-width: 960px;  margin: 0 auto; padding: 0 24px; }
.pc-container-narrow{ max-width: 640px;  margin: 0 auto; padding: 0 24px; }
.pc-container-wide  { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

.pc-section         { padding: 128px 0; }
.pc-section-compact { padding: 80px 0; }

@media (max-width: 640px) {
  .pc-section         { padding: 80px 0; }
  .pc-section-compact { padding: 56px 0; }
}

.pc-stack > * + * { margin-top: 20px; }
.pc-stack-sm > * + * { margin-top: 12px; }
.pc-stack-lg > * + * { margin-top: 32px; }

/* ----- Typography ----- */

.pc-hero {
  font-family: var(--pc-font-display);
  font-weight: 800;
  font-size: var(--pc-type-hero);
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--pc-text);
}

.pc-h1 {
  font-family: var(--pc-font-display);
  font-weight: 800;
  font-size: var(--pc-type-h1);
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--pc-text);
}

.pc-h2 {
  font-family: var(--pc-font-display);
  font-weight: 600;
  font-size: var(--pc-type-h2);
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--pc-text);
}

.pc-h3 {
  font-family: var(--pc-font-display);
  font-weight: 600;
  font-size: var(--pc-type-h3);
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--pc-text);
}

.pc-lead {
  font-size: var(--pc-type-lg);
  font-weight: 300;
  color: var(--pc-text-2);
  line-height: 1.55;
}

.pc-body { font-size: var(--pc-type-base); color: var(--pc-text); }

.pc-help {
  font-size: var(--pc-type-sm);
  color: var(--pc-text-2);
  line-height: 1.4;
}

.pc-help-error { color: var(--pc-error); }

.pc-tagline {
  font-size: var(--pc-type-base);
  color: var(--pc-text-2);
  letter-spacing: 0;
}

.pc-eyebrow {
  font-family: var(--pc-font-display);
  font-size: var(--pc-type-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--pc-accent);
  margin-bottom: 12px;
}

.pc-eyebrow-danger { color: var(--pc-error); }

.pc-dash-section { margin-top: 32px; }

.pc-step-label {
  font-family: var(--pc-font-body);
  font-size: var(--pc-type-sm);
  font-weight: 600;
  color: var(--pc-text);
  margin-top: 16px;
  margin-bottom: 8px;
}

.pc-mono {
  font-family: var(--pc-font-mono);
  font-size: var(--pc-type-mono);
  letter-spacing: 0.02em;
  color: var(--pc-accent);
}

a { color: var(--pc-accent); text-decoration: none; transition: color var(--pc-duration-base) var(--pc-ease); }
a:hover { color: var(--pc-accent-2); }
a:focus-visible { outline: 2px solid var(--pc-accent); outline-offset: 2px; border-radius: var(--pc-radius-sm); }

/* ----- Wordmark + Nav ----- */

.pc-wordmark {
  font-family: var(--pc-font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.03em;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}
.pc-wordmark-ping { color: var(--pc-text); }
.pc-wordmark-claw { color: var(--pc-accent); }

.pc-nav-wordmark {
  height: 28px;
  width: auto;
  display: block;
}

.pc-nav {
  position: sticky;
  top: 0;
  height: 56px;
  background: color-mix(in srgb, var(--pc-bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--pc-border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  z-index: 100;
}

/* Variant: scrolls with the page instead of sticking to top.
   Drops the blurred backdrop since it only matters when sticky. */
.pc-nav-static {
  position: static;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.pc-nav-inner {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
}
.pc-nav-spacer { flex: 1; }
.pc-nav-link {
  font-family: var(--pc-font-body);
  font-size: var(--pc-type-sm);
  font-weight: 400;
  color: var(--pc-text-2);
  text-decoration: none;
  transition: color var(--pc-duration-base);
}
.pc-nav-link:hover { color: var(--pc-text); }
.pc-nav-link.is-active { color: var(--pc-accent); }

/* ----- Buttons ----- */

.pc-btn-primary,
.pc-btn-ghost,
.pc-btn-danger {
  font-family: var(--pc-font-body);
  font-size: 15px;
  font-weight: 500;
  padding: 13px 28px;
  border-radius: var(--pc-radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition:
    background var(--pc-duration-base),
    border-color var(--pc-duration-base),
    color var(--pc-duration-base);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

.pc-btn-primary {
  background: var(--pc-accent-3);
  border: 1px solid var(--pc-accent-2);
  color: var(--pc-text);
}
.pc-btn-primary:hover { background: var(--pc-accent-2); border-color: var(--pc-accent); color: var(--pc-text); }
.pc-btn-primary:active { background: var(--pc-accent); }

.pc-btn-ghost {
  background: transparent;
  border: 1px solid var(--pc-border-2);
  color: var(--pc-text-2);
}
.pc-btn-ghost:hover {
  background: var(--pc-surface-2);
  border-color: var(--pc-text-3);
  color: var(--pc-text);
}

.pc-btn-danger {
  background: transparent;
  border: 1px solid var(--pc-error);
  color: var(--pc-error);
}
.pc-btn-danger:hover {
  background: var(--pc-error-bg);
  color: var(--pc-error);
}

.pc-btn-sm { padding: 7px 16px; font-size: 13px; }
.pc-btn-block { width: 100%; }

/* Used by segmented-toggle pill groups (e.g. MCP target picker). */
.pc-btn-ghost.is-selected {
  border-color: var(--pc-accent);
  color: var(--pc-accent);
  background: var(--pc-accent-bg);
}

button:disabled,
.pc-btn-primary:disabled,
.pc-btn-ghost:disabled,
.pc-btn-danger:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

button:focus-visible,
.pc-btn-primary:focus-visible,
.pc-btn-ghost:focus-visible,
.pc-btn-danger:focus-visible {
  outline: 2px solid var(--pc-accent);
  outline-offset: 2px;
}

/* ----- Inputs ----- */

.pc-input,
input[type="text"],
input[type="tel"],
input[type="email"],
select.pc-input {
  font-family: var(--pc-font-body);
  font-size: 15px;
  font-weight: 400;
  padding: 12px 16px;
  border-radius: var(--pc-radius-md);
  background: var(--pc-surface-2);
  border: 1px solid var(--pc-border-2);
  color: var(--pc-text);
  outline: none;
  width: 100%;
  transition: border-color var(--pc-duration-base);
}
select.pc-input {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%237ab8ac' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='1 1.5 6 6.5 11 1.5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 12px 8px;
  padding-right: 40px;
  cursor: pointer;
}
.pc-input::placeholder,
input::placeholder { color: var(--pc-text-3); }
.pc-input:focus,
input:focus { border-color: var(--pc-accent-2); }
.pc-input:focus-visible,
input:focus-visible {
  outline: 2px solid var(--pc-accent);
  outline-offset: 2px;
}
.pc-input[readonly] {
  font-family: var(--pc-font-mono);
  letter-spacing: 0.02em;
  color: var(--pc-text);
  cursor: text;
}

label.pc-label {
  display: block;
  font-size: var(--pc-type-sm);
  font-weight: 500;
  color: var(--pc-text-2);
  margin-bottom: 6px;
  letter-spacing: 0;
}

/* ----- Cards ----- */

.pc-card {
  background: var(--pc-surface);
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-lg);
  padding: 20px;
  transition:
    border-color var(--pc-duration-slow) var(--pc-ease-out),
    box-shadow var(--pc-duration-slow) var(--pc-ease-out);
}
.pc-card:hover {
  border-color: var(--pc-accent-3);
  box-shadow: 0 8px 32px rgba(0, 194, 160, 0.08);
}

.pc-card-accent {
  background: var(--pc-accent-bg);
  border: 1px solid var(--pc-accent-3);
  border-radius: var(--pc-radius-xl);
  padding: 24px;
}

.pc-card-tight  { padding: 20px; }
.pc-card-flat:hover { border-color: var(--pc-border); box-shadow: none; }

.pc-card-title {
  font-family: var(--pc-font-display);
  font-size: var(--pc-type-h3);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--pc-text);
  margin-bottom: 4px;
}

.pc-card-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

/* ----- Badges ----- */

.pc-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--pc-font-mono);
  font-size: var(--pc-type-xs);
  font-weight: 500;
  padding: 2px 8px;
  border-radius: var(--pc-radius-sm);
  border: 1px solid;
  white-space: nowrap;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.pc-badge-live {
  background: var(--pc-accent-bg);
  color: var(--pc-accent);
  border-color: var(--pc-accent-3);
}
.pc-badge-live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--pc-accent);
  animation: pc-pulse 1.4s ease-in-out infinite;
}
.pc-badge-warning {
  background: var(--pc-warning-bg);
  color: var(--pc-warning);
  border-color: var(--pc-warning);
}
.pc-badge-error {
  background: var(--pc-error-bg);
  color: var(--pc-error);
  border-color: var(--pc-error);
}
.pc-badge-info {
  background: var(--pc-info-bg);
  color: var(--pc-info);
  border-color: var(--pc-info);
}
.pc-badge-neutral {
  background: var(--pc-surface-2);
  color: var(--pc-text-3);
  border-color: var(--pc-border-2);
}

@keyframes pc-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* ----- Live location readout ----- */

.pc-location-readout {
  background: var(--pc-surface);
  border: 1px solid var(--pc-border-2);
  border-radius: var(--pc-radius-lg);
  padding: 16px 18px;
}
.pc-location-label {
  font-family: var(--pc-font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pc-text-3);
  margin-bottom: 6px;
}
.pc-location-coords {
  font-family: var(--pc-font-mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--pc-accent);
  letter-spacing: 0.02em;
  margin-bottom: 4px;
}
.pc-location-sep { color: var(--pc-text-4); }
.pc-location-accuracy {
  font-family: var(--pc-font-mono);
  font-size: 14px;
  color: var(--pc-text-3);
  letter-spacing: 0.02em;
}
.pc-location-empty {
  font-family: var(--pc-font-body);
  font-size: var(--pc-type-base);
  color: var(--pc-text-2);
}

/* ----- Code block ----- */

.pc-code-block {
  background: var(--pc-bg);
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-md);
  padding: 14px 16px;
  font-family: var(--pc-font-mono);
  font-size: var(--pc-type-mono);
  letter-spacing: 0.02em;
  color: var(--pc-text);
  overflow-x: auto;
  margin-bottom: 12px;
  white-space: pre;
  line-height: 1.5;
}

/* ----- Dividers ----- */

.pc-divider {
  height: 1px;
  background: var(--pc-border);
  margin: 32px 0;
  border: none;
}
.pc-divider-accent {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--pc-accent-3) 30%,
    var(--pc-accent-3) 70%,
    transparent
  );
  margin: 32px 0;
  border: none;
}

/* ----- Token row (input + button(s) inline) ----- */

.pc-token-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}
.pc-token-row > input { flex: 1; min-width: 0; }
.pc-token-row > .pc-btn-ghost,
.pc-token-row > .pc-btn-primary,
.pc-token-row > .pc-btn-danger { flex-shrink: 0; }

/* ----- Hero ----- */

.pc-hero-wrap {
  padding: 128px 24px 96px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.pc-hero-wrap .pc-cta { margin-top: 40px; display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }

/* Icon + two-line wordmark + tagline */
.pc-hero-mark {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.pc-hero-icon {
  width: clamp(250px, 34.4vw, 375px);
  height: clamp(250px, 34.4vw, 375px);
  display: block;
  flex-shrink: 0;
}
.pc-hero-img {
  max-width: min(90vw, 720px);
  height: auto;
  display: inline-block;
}
.pc-hero-text {
  text-align: left;
  display: flex;
  flex-direction: column;
}
.pc-hero-text .pc-tagline {
  color: var(--pc-text-2);
  margin-top: 20px;
  text-align: left;
  font-size: clamp(18px, 2.4vw, 26px);
  line-height: 1.3;
}

@media (max-width: 640px) {
  .pc-hero-wrap { padding: 80px 20px 64px; }
  .pc-hero-mark { gap: 20px; }
  .pc-hero-text, .pc-hero-text .pc-tagline { text-align: center; }
}

/* ----- Story / step grids (kept simple) ----- */

.pc-grid {
  display: grid;
  gap: 24px;
}
.pc-grid-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 720px) {
  .pc-grid-3 { grid-template-columns: 1fr; }
}

.pc-step-num {
  font-family: var(--pc-font-mono);
  font-size: var(--pc-type-xs);
  letter-spacing: 0.16em;
  color: var(--pc-text-3);
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* ----- Markdown-rendered prose (privacy, terms, setup) ----- */

.pc-prose h2 {
  font-family: var(--pc-font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--pc-text);
  margin-bottom: 8px;
  margin-top: 0;
}
.pc-prose h2:not(:first-child) { margin-top: 24px; }
.pc-prose h3 {
  font-family: var(--pc-font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--pc-text);
  margin-bottom: 8px;
  margin-top: 16px;
}
.pc-prose p {
  color: var(--pc-text-2);
  margin-bottom: 16px;
  font-size: var(--pc-type-base);
}
.pc-prose ul,
.pc-prose ol {
  color: var(--pc-text-2);
  padding-left: 20px;
  margin-bottom: 16px;
}
.pc-prose ul li,
.pc-prose ol li { margin-bottom: 4px; }
.pc-prose a { color: var(--pc-accent); }
.pc-prose a:hover { color: var(--pc-accent-2); }
.pc-prose code {
  font-family: var(--pc-font-mono);
  font-size: 0.92em;
  background: var(--pc-surface-2);
  padding: 1px 6px;
  border-radius: var(--pc-radius-sm);
}

/* ----- Social sign-in buttons ----- */

.pc-social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  height: 50px;
  border-radius: var(--pc-radius-md);
  font-family: var(--pc-font-body);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: opacity var(--pc-duration-base);
}
.pc-social-btn:hover { opacity: 0.9; }
.pc-social-btn:active { opacity: 0.8; }

.pc-social-apple {
  background: var(--pc-surface);
  color: var(--pc-text);
  border: 1px solid var(--pc-border);
}

.pc-social-google {
  background: var(--pc-surface);
  color: var(--pc-text);
  border: 1px solid var(--pc-border);
}


/* ----- Footer ----- */

.pc-footer {
  padding: 48px 24px;
  text-align: center;
  font-size: var(--pc-type-sm);
  color: var(--pc-text-3);
  border-top: 1px solid var(--pc-border);
  margin-top: 96px;
}
.pc-footer a { color: var(--pc-text-2); }
.pc-footer a:hover { color: var(--pc-text); }

/* ----- Page-load reveal animation ----- */

@keyframes pc-fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.pc-reveal   { animation: pc-fade-up var(--pc-duration-reveal) var(--pc-ease) both; }
.pc-reveal-1 { animation-delay: 0ms; }
.pc-reveal-2 { animation-delay: 100ms; }
.pc-reveal-3 { animation-delay: 200ms; }
.pc-reveal-4 { animation-delay: 300ms; }