@import url('./tokens.css');

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; }
ul[role="list"] { list-style: none; }
a { color: inherit; }
address { font-style: normal; }

/* ============================================================
   Layout
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max-width-content);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ============================================================
   Skip link (a11y)
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: var(--z-toast);
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
  font-size: var(--font-size-sm);
}
.skip-link:focus { top: var(--space-2); }

/* ============================================================
   Visual Placeholder — spec WEB-715 (override tokens.css)
   ============================================================ */
.visual-placeholder {
  display: block;
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 16 / 9;
  min-height: unset;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-primary) 22%, var(--color-bg)) 0%,
    color-mix(in srgb, var(--color-primary) 10%, var(--color-bg)) 55%,
    color-mix(in srgb, var(--color-secondary) 18%, var(--color-bg)) 100%
  );
}
.visual-placeholder[data-aspect="4:3"]  { aspect-ratio: 4 / 3; }
.visual-placeholder[data-aspect="1:1"]  { aspect-ratio: 1 / 1; }
.visual-placeholder[data-aspect="3:4"]  { aspect-ratio: 3 / 4; }
.visual-placeholder[data-aspect="21:9"] { aspect-ratio: 21 / 9; }
.visual-placeholder[data-tone="secondary"] {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-secondary) 22%, var(--color-bg)) 0%,
    color-mix(in srgb, var(--color-secondary) 10%, var(--color-bg)) 55%,
    color-mix(in srgb, var(--color-primary) 16%, var(--color-bg)) 100%
  );
}
.visual-placeholder[data-tone="accent"] {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-accent, var(--color-primary)) 22%, var(--color-bg)) 0%,
    color-mix(in srgb, var(--color-primary) 12%, var(--color-bg)) 60%,
    color-mix(in srgb, var(--color-secondary) 16%, var(--color-bg)) 100%
  );
}
.visual-placeholder[data-tone="muted"] {
  background: color-mix(in srgb, var(--color-text) 8%, var(--color-bg));
}

/* ============================================================
   Navigation
   ============================================================ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}
.nav-logo { display: flex; align-items: center; }
.nav-logo img { height: 2.25rem; width: auto; }

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}
.nav-toggle:hover { background: var(--color-primary-10); }
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-menu {
  display: none;
  position: fixed;
  inset: 4rem 0 0 0;
  background: var(--color-surface);
  flex-direction: column;
  padding: var(--space-8) var(--gutter);
  gap: var(--space-2);
  z-index: var(--z-overlay);
  border-top: 1px solid var(--color-border);
  overflow-y: auto;
}
.nav-menu.is-open { display: flex; }
.nav-menu li { border-bottom: 1px solid var(--color-border); }
.nav-menu a {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-4) var(--space-2);
  transition: color var(--transition-fast);
}
.nav-menu a:hover,
.nav-menu a[aria-current="page"] { color: var(--color-primary); }

@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .nav-menu {
    display: flex;
    position: static;
    flex-direction: row;
    padding: 0;
    gap: var(--space-8);
    border-top: none;
    background: transparent;
    inset: auto;
    overflow: visible;
  }
  .nav-menu li { border-bottom: none; }
  .nav-menu a {
    font-size: var(--font-size-base);
    padding: var(--space-2) 0;
    border-bottom: 2px solid transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast);
  }
  .nav-menu a:hover,
  .nav-menu a[aria-current="page"] { border-bottom-color: var(--color-primary); }
}

/* ============================================================
   Section spacing defaults
   ============================================================ */
section { padding-block: var(--space-16); }
.section-intro {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-top: var(--space-4);
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding-block: var(--space-12) var(--space-16);
  background-color: var(--color-bg);
  background-image: var(--visual-bg-pattern);
}
.hero > .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}
.hero-eyebrow {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-caps);
  margin-bottom: var(--space-3);
  background: var(--color-primary-10);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
}
.hero-content h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.2;
  margin-bottom: var(--space-5);
}
.hero-lead {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  line-height: var(--line-height-loose);
  max-width: 52ch;
  margin-bottom: var(--space-6);
}
.hero-lead em {
  color: var(--color-secondary);
  font-style: italic;
  font-weight: var(--font-weight-bold);
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.hero-phone {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
}
.hero-phone a {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
}
.hero-phone a:hover { text-decoration: underline; }

@media (min-width: 768px) {
  .hero > .container {
    flex-direction: row;
    align-items: center;
    gap: var(--space-12);
  }
  .hero-content { flex: 1 1 50%; }
  .hero-visual { flex: 1 1 45%; }
}

/* ============================================================
   Services Preview (home)
   ============================================================ */
.services-preview { background: var(--color-surface); }
.services-preview h2 { margin-bottom: var(--space-2); }
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-8);
}
@media (min-width: 600px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .services-grid { grid-template-columns: repeat(3, 1fr); } }

.service-card { padding: 0; overflow: hidden; }
.card-body { padding: var(--space-5) var(--space-5) var(--space-6); }
.card-body h3 { margin-bottom: var(--space-2); font-size: var(--font-size-md); }
.card-body p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  margin-bottom: var(--space-4);
}
.card-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: var(--letter-spacing-cta);
}
.card-link:hover { text-decoration: underline; }

/* ============================================================
   Madras Highlight
   ============================================================ */
.madras-highlight {
  background: var(--color-secondary);
  padding-block: var(--space-16);
}
.madras-highlight h2,
.madras-highlight p { color: #fff; }
.madras-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
  align-items: center;
}
.madras-text { flex: 1; }
.madras-text h2 { margin-bottom: var(--space-5); }
.madras-text p {
  margin-bottom: var(--space-5);
  opacity: 0.9;
  line-height: var(--line-height-loose);
}
.madras-text p em {
  display: block;
  font-family: var(--font-heading);
  font-style: italic;
  font-size: var(--font-size-lg);
  color: var(--color-accent);
  margin-top: var(--space-2);
}
.madras-text .btn-secondary {
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.madras-text .btn-secondary:hover { background: rgba(255,255,255,0.15); }
.madras-visual { width: 100%; max-width: 420px; }

@media (min-width: 768px) {
  .madras-inner { flex-direction: row; align-items: center; gap: var(--space-16); }
  .madras-visual { flex: 0 0 340px; max-width: none; }
}

/* ============================================================
   CTA Band
   ============================================================ */
.cta-band {
  background: var(--color-surface-warm);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}
.cta-band h2 { margin-bottom: var(--space-4); }
.cta-band > .container > p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  max-width: 48ch;
  margin-inline: auto;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
  margin-bottom: var(--space-6);
}
.cta-address {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-text);
  color: #fff;
  padding-top: var(--space-12);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid rgba(255,255,255,0.10);
}
@media (min-width: 768px) {
  .footer-inner { grid-template-columns: 2fr 1fr 1fr; }
}
.footer-brand img { height: 2rem; width: auto; margin-bottom: var(--space-4); filter: brightness(0) invert(1); }
.footer-brand p { opacity: 0.7; font-size: var(--font-size-sm); max-width: 30ch; line-height: var(--line-height-normal); }
.footer-nav h3,
.footer-contact h3 {
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-caps);
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--space-4);
}
.footer-nav ul { display: flex; flex-direction: column; gap: var(--space-2); }
.footer-nav a,
.footer-contact a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}
.footer-nav a:hover,
.footer-contact a:hover { color: var(--color-accent); }
.footer-contact p { font-size: var(--font-size-sm); color: rgba(255,255,255,0.75); line-height: var(--line-height-normal); margin-bottom: var(--space-2); }
.footer-bottom {
  padding-block: var(--space-5);
  text-align: center;
}
.footer-bottom p { font-size: var(--font-size-xs); color: rgba(255,255,255,0.45); }
.footer-bottom a { color: rgba(255,255,255,0.6); text-decoration: underline; }

/* ============================================================
   Page Header (inner pages)
   ============================================================ */
.page-header {
  background: var(--color-primary);
  background-image: var(--visual-bg-pattern);
  padding-block: var(--space-12) var(--space-10);
}
.page-header h1 {
  color: #fff;
  font-size: clamp(1.5rem, 3.5vw, 2.125rem);
}
.page-header p {
  color: rgba(255,255,255,0.85);
  margin-top: var(--space-4);
  max-width: 60ch;
  font-size: var(--font-size-md);
  line-height: var(--line-height-loose);
}

/* ============================================================
   Services Page
   ============================================================ */
.services-full { background: var(--color-bg); }
.services-full-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin-top: var(--space-6);
}

.service-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.service-block-inner {
  display: flex;
  flex-direction: column;
}
@media (min-width: 768px) {
  .service-block-inner { flex-direction: row; }
  .service-block-inner.reverse { flex-direction: row-reverse; }
  .service-block .service-visual { flex: 0 0 320px; }
}
.service-block .service-visual .visual-placeholder {
  height: 100%;
  min-height: 200px;
  border-radius: 0;
  aspect-ratio: unset;
}
.service-text { padding: var(--space-8); flex: 1; }
.service-text h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-4);
  color: var(--color-text);
}
.service-text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  line-height: var(--line-height-loose);
}
.service-text ul {
  padding-left: var(--space-5);
  margin-bottom: var(--space-4);
}
.service-text ul li {
  margin-bottom: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
}
.service-text ul li::marker { color: var(--color-primary); }

.services-cta {
  background: var(--color-surface-warm);
  border-top: 1px solid var(--color-border);
  text-align: center;
  padding-block: var(--space-12);
}
.services-cta h2 { margin-bottom: var(--space-4); }
.services-cta p { color: var(--color-text-muted); margin-bottom: var(--space-6); }

/* ============================================================
   About Page
   ============================================================ */
.about-section { background: var(--color-bg); }
.about-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}
@media (min-width: 768px) {
  .about-inner { flex-direction: row; align-items: flex-start; gap: var(--space-12); }
  .about-text { flex: 1; min-width: 0; }
  .about-visual { flex: 0 0 340px; position: sticky; top: calc(4rem + var(--space-6)); }
}
.about-text p {
  margin-bottom: var(--space-5);
  line-height: var(--line-height-loose);
}
.about-tagline {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  border-left: 4px solid var(--color-primary);
  padding-left: var(--space-4);
  margin-block: var(--space-6);
}
.about-founded {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--color-primary-10);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-5);
  margin-bottom: var(--space-6);
}
.about-founded strong {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: 700;
}
.about-founded span {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ============================================================
   Contact Page
   ============================================================ */
.contact-section { background: var(--color-bg); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  margin-top: var(--space-6);
}
@media (min-width: 768px) { .contact-grid { grid-template-columns: 1fr 1fr; gap: var(--space-12); } }

.contact-info h2 { margin-bottom: var(--space-6); }
.contact-info-item {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  align-items: flex-start;
}
.contact-info-icon {
  flex-shrink: 0;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-md);
  background: var(--color-primary-10);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--color-primary);
}
.contact-info-text strong {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-caps);
  margin-bottom: var(--space-1);
}
.contact-info-text a {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
  font-size: var(--font-size-md);
}
.contact-info-text a:hover { text-decoration: underline; }
.contact-info-text p { color: var(--color-text); font-size: var(--font-size-base); }
.contact-info-text small { font-size: var(--font-size-sm); color: var(--color-text-muted); }

.contact-form-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
}
.contact-form h2 { margin-bottom: var(--space-6); font-size: var(--font-size-xl); }
.form-group { margin-bottom: var(--space-5); }
.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}
.form-group textarea { min-height: 130px; resize: vertical; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--color-text-light); }
.form-note {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}
.form-rgpd {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  line-height: var(--line-height-loose);
}

.map-section { padding-block: 0 var(--space-16); }
.map-section .container > h2 { margin-bottom: var(--space-6); }
.map-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}
.map-wrap iframe { display: block; width: 100%; height: 400px; border: 0; }

/* ============================================================
   Fade-in animation
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .fade-in { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   Animation pass — WEB-7854 (encapsulated in no-preference)
   ============================================================ */
@media (prefers-reduced-motion: no-preference) {

  /* Stagger fade-in inside services grid & CTA band */
  .services-grid .fade-in:nth-child(1) { transition-delay: 0ms; }
  .services-grid .fade-in:nth-child(2) { transition-delay: 90ms; }
  .services-grid .fade-in:nth-child(3) { transition-delay: 180ms; }
  .services-grid .fade-in:nth-child(4) { transition-delay: 270ms; }
  .cta-band .fade-in:nth-child(2) { transition-delay: 80ms; }
  .cta-band .fade-in:nth-child(3) { transition-delay: 160ms; }
  .cta-band .fade-in:nth-child(4) { transition-delay: 240ms; }

  /* Service card hover — lift + softer shadow bump */
  .card {
    transition:
      transform 260ms cubic-bezier(.2,.7,.2,1),
      box-shadow 260ms cubic-bezier(.2,.7,.2,1),
      border-color 260ms ease;
    will-change: transform;
  }
  .card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg, 0 12px 28px -12px rgba(0,0,0,.22));
    border-color: color-mix(in srgb, var(--color-primary) 45%, var(--color-border));
  }

  /* Card-link arrow slide — animate the trailing → via ::after */
  .card-link {
    display: inline-flex;
    align-items: baseline;
    gap: 0.25em;
    background-image: linear-gradient(currentColor, currentColor);
    background-repeat: no-repeat;
    background-position: 0 100%;
    background-size: 0% 1px;
    transition: background-size 320ms ease, color 200ms ease;
  }
  .card-link:hover,
  .card-link:focus-visible {
    text-decoration: none;
    background-size: 100% 1px;
  }
  .card:hover .card-link { color: var(--color-primary-hover, var(--color-primary)); }

  /* Visual placeholder — subtle glide of the gradient on hover */
  .visual-placeholder {
    background-size: 180% 180%;
    background-position: 0% 0%;
    transition: background-position 900ms ease, transform 500ms ease;
  }
  .card:hover .visual-placeholder,
  .hero-visual:hover .visual-placeholder,
  .madras-visual:hover .visual-placeholder {
    background-position: 100% 100%;
  }

  /* Buttons — polish (press-in, gentle raise) */
  .btn-primary,
  .btn-secondary {
    transition:
      transform 180ms cubic-bezier(.2,.7,.2,1),
      box-shadow 220ms ease,
      background-color 200ms ease,
      color 200ms ease,
      border-color 200ms ease;
  }
  .btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 20px -10px rgba(196,92,26,.55); }
  .btn-secondary:hover { transform: translateY(-1px); }
  .btn-primary:active,
  .btn-secondary:active { transform: translateY(0); }

  /* Hero eyebrow — animated accent bar that grows once hero is visible */
  .hero-eyebrow {
    position: relative;
    padding-left: 2.75rem;
  }
  .hero-eyebrow::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    height: 2px;
    width: 0;
    background: var(--color-primary);
    transform: translateY(-50%);
    transition: width 700ms cubic-bezier(.2,.7,.2,1) 200ms;
  }
  .hero-content.visible .hero-eyebrow::before,
  .hero-content:not(.fade-in) .hero-eyebrow::before { width: 2.25rem; }

  /* Nav link — soft underline slide */
  .nav-menu a {
    background-image: linear-gradient(var(--color-primary), var(--color-primary));
    background-repeat: no-repeat;
    background-position: 0 100%;
    background-size: 0% 2px;
    transition: background-size 260ms ease, color 200ms ease;
  }
  .nav-menu a:hover,
  .nav-menu a:focus-visible,
  .nav-menu a[aria-current="page"] { background-size: 100% 2px; }

  /* Focus-visible — halo discret cohérent brand */
  a:focus-visible,
  button:focus-visible,
  .btn-primary:focus-visible,
  .btn-secondary:focus-visible,
  .card-link:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 3px;
    border-radius: var(--radius-sm, 4px);
  }
}

/* ============================================================
   Utility
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}