/*
 * layout.css — Pack3D satellite page chrome
 *
 * Generic page structure shared across Pack3D satellite projects.
 * Contains: design tokens (:root), resets, page wrapper, header/nav,
 * footer, base card shell, buttons, label mono, and responsive chrome rules.
 *
 * No tracking-specific rules live here.
 * Tracking form components → tracking.css
 *
 * Structure:
 *   1.  :root — design token block
 *   2.  Resets & base
 *   3.  Page wrapper & layout
 *   4.  Skip link (accessibility)
 *   5.  Header / nav
 *   6.  Footer
 *   7.  Cards (base shell)
 *   8.  Buttons
 *   9.  Label mono / section markers
 *   10. Responsive (header + footer)
 */


/* ─── 1. :root ─────────────────────────────────────────────────────────────── */

:root {
  /* BRAND */
  --p3d-color-primary:              #052638;
  --p3d-color-accent:               #12d98f;
  --p3d-color-accent-contrast:      #0eab71;
  --p3d-color-primary-rgb:          5, 38, 56;
  --p3d-color-text-on-primary:      #ffffff;
  --p3d-color-text-on-accent:       var(--p3d-color-primary);
  --p3d-color-text-on-accent-contrast: #ffffff;

  /* SEMANTIC */
  --p3d-color-danger:               #d93025;
  --p3d-color-error:                var(--p3d-color-primary);
  --p3d-color-error-bg:             #fce8e6;
  --p3d-color-warning:              #f39c12;
  --p3d-color-success:              #188038;

  /* BACKGROUNDS */
  --p3d-color-bg:                   #ffffff;
  --p3d-color-bg-subtle:            #FAFAFA;
  --p3d-color-grey-dark:            #c0c0c0;
  --p3d-color-grey-light:           #ececec;
  --p3d-color-grey-ghost:           #fcfcfc;
  --p3d-color-grey-soft:            #f6f6f6;
  --p3d-color-surface:              var(--p3d-color-grey-ghost);
  --p3d-color-surface-elevated:     rgba(255,255,255,0.07);

  /* ACCENT TINTS */
  --p3d-color-accent-hover:         rgba(18,217,143,0.05);
  --p3d-color-accent-soft:          hsla(210,100%,55%,0.1);
  --p3d-color-accent-active:        hsl(210,100%,45%);

  /* BORDERS */
  --p3d-color-border:               var(--p3d-color-grey-light);
  --p3d-color-border-subtle:        #EEEEEE;

  /* TEXT */
  --p3d-text-main:                  var(--p3d-color-primary);
  --p3d-text-muted:                 #575757;
  --p3d-text-muted-tinted:          #697d88;

  /* GRAY SCALE */
  --p3d-gray-50:   #f9fafb;
  --p3d-gray-100:  #f3f4f6;
  --p3d-gray-200:  #e5e7eb;
  --p3d-gray-300:  #d1d5db;
  --p3d-gray-400:  #9ca3af;
  --p3d-gray-500:  #6b7280;
  --p3d-gray-600:  #4b5563;
  --p3d-gray-700:  #374151;
  --p3d-gray-800:  #1f2937;
  --p3d-gray-900:  #111827;

  /* TYPOGRAPHY */
  --p3d-font-heading: 'Exo 2', system-ui, -apple-system, sans-serif;
  --p3d-font-body:    'Outfit', system-ui, -apple-system, sans-serif;
  --p3d-font-mono:    'ui-monospace','SFMono-Regular','Menlo','Monaco','Consolas',monospace;

  /* FLUID FONT SCALE */
  --p3d-text-xs:    clamp(0.7rem,  0.65rem + 0.25vw, 0.75rem);
  --p3d-text-sm:    clamp(0.8rem,  0.75rem + 0.30vw, 0.875rem);
  --p3d-text-base:  clamp(1rem,    0.95rem + 0.40vw, 1.125rem);
  --p3d-text-md:    clamp(1.2rem,  1.10rem + 0.60vw, 1.5rem);
  --p3d-text-lg:    clamp(1.5rem,  1.30rem + 1.00vw, 2.25rem);
  --p3d-text-xl:    clamp(2rem,    1.50rem + 2.50vw, 3.5rem);

  /* TYPE SETTINGS */
  --p3d-leading-tight:    1.2;
  --p3d-leading-base:     1.5;
  --p3d-leading-loose:    1.8;
  --p3d-tracking-tight:  -0.02em;
  --p3d-tracking-base:    0;
  --p3d-tracking-wide:    0.05em;
  --p3d-weight-light:     300;
  --p3d-weight-regular:   400;
  --p3d-weight-medium:    500;
  --p3d-weight-semibold:  600;
  --p3d-weight-bold:      700;

  /* BUTTON FONT SIZES */
  --p3d-btn-font-size:     clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  --p3d-btn-cta-font-size: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);

  /* LAYOUT */
  --p3d-header-height:    72px;
  --p3d-container-max:    1280px;
  --p3d-sidebar-width:    13rem;
  --p3d-width-sm:         512px;
  --p3d-width-md:         800px;
  --p3d-width-lg:         1280px;
  --p3d-screen-height:    100svh;
  --p3d-screen-width:     100vw;
  --p3d-safe-area-top:    env(safe-area-inset-top, 0px);
  --p3d-safe-area-bottom: env(safe-area-inset-bottom, 0px);

  /* BORDER RADIUS */
  --p3d-radius-sm:  2px;
  --p3d-radius-md:  8px;
  --p3d-radius-lg:  16px;

  /* SHADOWS (tinted with primary) */
  --p3d-shadow-sm:  0 2px  4px rgba(5,38,56,0.08);
  --p3d-shadow-md:  0 4px  8px rgba(5,38,56,0.12);
  --p3d-shadow-lg:  0 8px 16px rgba(5,38,56,0.15);

  /* TRANSITIONS */
  --p3d-ease-standard:    cubic-bezier(0.4, 0, 0.2, 1);
  --p3d-transition-speed: 150ms;
  --p3d-transition-base:  150ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-INDEX */
  --p3d-z-overlay:  900;
  --p3d-z-sidebar:  999;
  --p3d-z-header:   1000;
  --p3d-z-modal:    2000;

  /* STATUS HELPERS */
  --p3d-status-ok-bg:     #e6fffa;
  --p3d-status-ok-text:   #2c7a7b;
  --p3d-status-ok-border: #b2f5ea;
  --p3d-status-err-bg:    #fff5f5;
  --p3d-status-err-text:  #c53030;
  --p3d-status-err-border:#feb2b2;
}


/* ─── 2. Resets & base ─────────────────────────────────────────────────────── */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--p3d-font-body);
  font-size: var(--p3d-text-base);
  font-weight: var(--p3d-weight-regular);
  line-height: var(--p3d-leading-base);
  color: var(--p3d-text-main);
  background-color: var(--p3d-color-grey-soft);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--p3d-font-heading);
  font-weight: var(--p3d-weight-bold);
  line-height: var(--p3d-leading-tight);
  color: var(--p3d-text-main);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--p3d-transition-base);
}

button {
  cursor: pointer;
  font-family: inherit;
}

strong {
  font-size: 1rem;
  color: var(--p3d-text-main);
}

[hidden] {
  display: none !important;
}


/* ─── 3. Page wrapper & layout ─────────────────────────────────────────────── */

.p3d-page-wrapper {
  width: 100%;
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100svh;
}

.p3d-content-body {
  background-color: var(--p3d-color-grey-soft);
  background-image: url('/public/bg.svg');
  background-repeat: repeat;
  background-attachment: fixed;
  background-size: 1000px auto;
}

.p3d-container {
  width: 100%;
  padding: 0 1.5rem;
}

.p3d-main-content {
  padding: 2.5rem 1rem;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}


/* ─── 4. Skip link ─────────────────────────────────────────────────────────── */

.p3d-skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--p3d-color-accent);
  color: var(--p3d-color-text-on-accent-contrast);
  padding: 1rem 2rem;
  z-index: calc(var(--p3d-z-header) + 1);
  font-family: var(--p3d-font-heading);
  font-weight: var(--p3d-weight-semibold);
  text-decoration: none;
  border-radius: 0 0 var(--p3d-radius-sm) 0;
  transition: top var(--p3d-transition-speed) ease;
}

.p3d-skip-link:focus {
  top: 0;
  outline: 3px solid var(--p3d-color-primary);
  outline-offset: 2px;
}


/* ─── 5. Header / nav ──────────────────────────────────────────────────────── */

.p3d-site-header {
  height: var(--p3d-header-height);
  background: var(--p3d-color-bg);
  border-bottom: 1px solid var(--p3d-color-border);
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  transition: box-shadow var(--p3d-transition-base);
  z-index: var(--p3d-z-header);
}

.p3d-header-container {
  min-width: 15rem;
  width: 100%;
  height: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.p3d-header-brand {
  display: flex;
  align-items: center;
  min-width: 160px;
}

.p3d-logo-link {
  display: flex;
  align-items: center;
  height: 100%;
  color: var(--p3d-color-primary);
  transition: color var(--p3d-transition-base);
}

.p3d-logo-svg {
  width: auto;
  display: block;
  height: 22px;
}

.p3d-logo-icon-bg { fill: var(--p3d-color-accent); }

.p3d-header-nav {
  position: fixed;
  top: var(--p3d-header-height);
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 310px;
  background-color: var(--p3d-color-bg);
  border-left: 1px solid var(--p3d-color-border);
  padding: 2rem;
  display: none;
  flex-direction: column;
  box-shadow: var(--p3d-shadow-lg);
}

.p3d-header-nav.p3d-is-active { display: flex; }

.p3d-header-nav-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  list-style: none;
}

.p3d-header-nav .p3d-nav-link { opacity: 0.75; }

.p3d-nav-link {
  white-space: nowrap;
  position: relative;
  transition: color 0.4s ease-in-out;
}

.p3d-nav-link:hover,
.p3d-nav-link.p3d-is-active {
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--p3d-color-accent-contrast);
  color: var(--p3d-color-accent-contrast);
}

.p3d-nav-link:hover {
  text-decoration-thickness: 1px;
  text-decoration-style: dotted;
}

.p3d-nav-link.p3d-is-active {
  text-underline-offset: 6px;
  text-decoration-style: solid;
  text-decoration-thickness: 1px;
}

.p3d-header-actions {
  display: inline-flex;
  align-items: center;
  gap: 1.5rem;
  margin-left: auto;
}

.p3d-header-actions .p3d-btn         { margin: 0; white-space: nowrap; }
.p3d-header-actions .p3d-btn-cta     { padding: 0.75rem 1.6rem; font-size: var(--p3d-text-sm); font-weight: 500; }

.p3d-menu-toggle {
  display: block;
  background: transparent;
  border: none;
  padding: 0.5rem;
}

.p3d-hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--p3d-color-primary);
  position: relative;
}

.p3d-hamburger::before,
.p3d-hamburger::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background-color: var(--p3d-color-primary);
  left: 0;
}

.p3d-hamburger::before { top: -8px; }
.p3d-hamburger::after  { bottom: -8px; }


/* ─── 6. Footer ────────────────────────────────────────────────────────────── */

.p3d-site-footer {
  border-top: 1px solid rgba(255,255,255,0.1);
  background-color: var(--p3d-color-primary);
  color: #ffffff;
  padding: 5rem 0 0;
}

.p3d-footer-column .p3d-logo {
  display: inline-block;
  margin-bottom: .25rem;
}

.p3d-logo-light { color: #fff; }
.p3d-logo-light .p3d-logo-svg { color: #fff; }

.p3d-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 4rem;
  padding-bottom: 4rem;
}

.p3d-footer-heading {
  color: var(--p3d-color-accent);
  font-family: var(--p3d-font-heading);
  font-size: var(--p3d-text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.p3d-footer-description,
.p3d-footer-address {
  font-family: var(--p3d-font-body);
  font-size: var(--p3d-text-sm);
  font-style: normal;
  color: rgba(255,255,255,0.7);
  line-height: 1.6;
  max-width: 320px;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.p3d-footer-description { margin: 0 auto; }

.p3d-footer-address {
  border-top: 2px solid var(--p3d-color-accent);
  padding-top: 1.25rem;
  display: inline-block;
}

.p3d-footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  padding: 0;
  margin: 0;
}

.p3d-footer-links li { line-height: 1; }

.p3d-footer-links .p3d-btn-tertiary {
  display: inline-block;
  padding: 0;
  background: transparent;
  border: none;
  font-size: var(--p3d-text-sm);
  text-decoration: none;
  font-weight: 400;
  color: rgba(255,255,255,0.8) !important;
  font-family: var(--p3d-font-body);
  transition: all var(--p3d-transition-base);
  cursor: pointer;
}

.p3d-footer-links .p3d-btn-tertiary:hover {
  color: var(--p3d-color-accent) !important;
  transform: translateX(4px);
}

.p3d-footer-links .p3d-btn-tertiary:focus-visible {
  outline: 2px solid var(--p3d-color-accent);
  outline-offset: 4px;
  color: var(--p3d-color-accent) !important;
}

.p3d-footer-bottom {
  background-color: rgba(0,0,0,0.2);
  padding: 1.5rem 0;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.p3d-footer-bottom-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--p3d-text-xs);
  color: rgba(255,255,255,0.5);
}

.p3d-footer-legal { display: flex; gap: 1.5rem; }

.p3d-footer-legal-link {
  font-size: var(--p3d-text-xs);
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  transition: color var(--p3d-transition-base);
}

.p3d-footer-legal-link:hover { color: var(--p3d-color-accent); }


/* ─── 7. Cards (base shell) ────────────────────────────────────────────────── */

.p3d-card {
  background: var(--p3d-color-bg);
  color: var(--p3d-text-main);
  border: 1px solid var(--p3d-color-border);
  border-radius: var(--p3d-radius-sm);
  box-shadow: 0 4px 20px rgba(5,38,56,0.04), 0 1px 2px rgba(5,38,56,0.06);
  overflow: hidden;
  position: relative;
  width: 100%;
  padding: clamp(1.5rem, 5vw, 2rem);
}

.p3d-card-sm {
  max-width: var(--p3d-width-sm);
  margin-inline: auto;
}

.p3d-card-md {
  max-width: var(--p3d-width-md);
  margin-inline: auto;
}

.p3d-card-footer {
  padding-top: 1.5rem;
  border-top: 1px solid var(--p3d-color-border);
  text-align: center;
}

.p3d-card-footer p {
  font-size: var(--p3d-text-sm);
  color: var(--p3d-text-muted);
}


/* ─── 8. Buttons ───────────────────────────────────────────────────────────── */

.p3d-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .85rem 1.5rem;
  font-family: var(--p3d-font-body);
  font-size: var(--p3d-btn-font-size);
  font-weight: var(--p3d-weight-medium);
  border-radius: var(--p3d-radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--p3d-transition-base);
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
  min-height: 48px;
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  line-height: 1;
}

.p3d-btn:active  { box-shadow: none; transform: translateY(1px); }
.p3d-btn:disabled{ opacity: .5; cursor: not-allowed; pointer-events: none; }

.p3d-btn-primary {
  background: var(--p3d-color-bg-subtle);
  border-color: var(--p3d-color-border);
  color: var(--p3d-color-primary);
}

.p3d-btn-primary:hover {
  background: var(--p3d-color-grey-ghost);
  filter: brightness(1.02);
  box-shadow: var(--p3d-shadow-sm);
}

.p3d-btn-accent {
  background-color: var(--p3d-color-accent-contrast);
  color: var(--p3d-color-text-on-accent-contrast);
  box-shadow: var(--p3d-shadow-sm);
}

.p3d-btn-accent:hover {
  box-shadow: var(--p3d-shadow-md);
  background-color: var(--p3d-color-accent);
}

.p3d-btn-ghost {
  background-color: transparent;
  border: 1px solid var(--p3d-color-grey-light);
  color: var(--p3d-text-muted);
  font-weight: 400;
}

.p3d-btn-ghost:hover {
  box-shadow: var(--p3d-shadow-sm);
  border-color: var(--p3d-color-grey-light);
  color: var(--p3d-color-primary);
}

.p3d-btn-tertiary {
  background: none;
  color: var(--p3d-color-primary);
  padding: 0;
  min-height: auto;
  min-width: auto;
  text-decoration: underline;
  text-underline-offset: 4px;
  border: 0;
  box-shadow: none;
}

.p3d-btn-tertiary:hover {
  color: var(--p3d-color-accent-contrast) !important;
  text-decoration-color: var(--p3d-color-accent-contrast);
}

.p3d-btn-error {
  background-color: var(--p3d-color-error);
  color: white;
}

.p3d-btn-cta {
  font-size: var(--p3d-btn-cta-font-size);
  padding: 1rem 2.5rem;
  font-weight: 700;
}

.p3d-btn-full {
  width: 100%;
  justify-content: center;
}

.p3d-btn-dark {
  background: var(--p3d-color-primary);
  border-color: var(--p3d-color-primary);
  color: var(--p3d-color-text-on-primary);
}

.p3d-btn-dark:hover { opacity: .88; }

.p3d-btn-ghost:focus-visible,
.p3d-btn-tertiary:focus-visible {
  outline: 2px solid var(--p3d-color-accent);
  outline-offset: 2px;
}

.p3d-btn-group {
  display: flex;
  gap: 1.5rem;
  justify-content: flex-start;
  flex-direction: column;
  width: 100%;
}

.p3d-btn-group .p3d-btn      { width: 100%; }
.p3d-btn-group .p3d-btn-cta  { flex: 3; }
.p3d-btn-group .p3d-btn-back { flex: 1; }

@media (min-width: 40rem) {
  .p3d-btn-group              { flex-direction: row; width: unset; }
  .p3d-btn-group .p3d-btn     { width: auto; }
}


/* ─── 9. Label mono / section markers ──────────────────────────────────────── */

.p3d-label-mono {
  font-family: var(--p3d-font-mono);
  font-size: var(--p3d-text-xs);
  color: var(--p3d-text-muted-tinted);
  text-transform: uppercase;
  letter-spacing: .12em;
  display: inline-block;
  padding-bottom: 2px;
}

.p3d-label-mono:first-of-type,
.p3d-label-mono--accent {
  border-bottom: 1px solid var(--p3d-color-accent);
}

.p3d-engineered-border {
  padding-left: clamp(1.5rem, 3vw, 2.5rem);
  border-left: 3px solid var(--p3d-color-accent);
}


/* ─── 10. Responsive ────────────────────────────────────────────────────────── */

@media (min-width: 40rem) {
  .p3d-header-container {
    display: grid;
    grid-template-columns: 160px 1fr 160px;
    gap: 1rem;
  }

  .p3d-menu-toggle { display: none; }

  .p3d-header-nav {
    position: static;
    display: flex;
    width: auto;
    max-width: none;
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
    flex-direction: row;
    justify-content: center;
  }

  .p3d-header-nav-list {
    flex-direction: row;
    gap: 2.5rem;
  }

  .p3d-header-nav .p3d-nav-link { opacity: 1; }

  .p3d-nav-link { font-size: 0.9rem; }
}

@media (max-width: 27rem) {
  .p3d-header-actions .p3d-btn-cta { display: none; }
}

@media (min-width: 48rem) {
  .p3d-footer-description,
  .p3d-footer-address { max-width: 320px; }

  .p3d-footer-description { margin-inline: inherit; padding: 0; }

  .p3d-footer-address {
    border-top: 0;
    border-left: 2px solid var(--p3d-color-accent);
    padding-left: 1.5rem;
    padding-top: 0;
    display: inherit;
  }
}

@media (max-width: 768px) {
  .p3d-footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }

  .p3d-footer-bottom-flex {
    flex-direction: column;
    gap: 1rem;
  }
}

@media (max-width: 600px) {
  .p3d-main-content {
    padding: 1.5rem .75rem;
  }
}