/* ============================================================
   TM Quant — components.css
   Componentes UI reutilizables: nav, hamburger, hero diagram,
   problem items, step list, area cards, case cards, form,
   footer.
   ============================================================ */


/* ── NAV ─────────────────────────────────────────────────────── */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(11, 24, 41, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.07);
  transition: background var(--transition-mid),
              box-shadow var(--transition-mid);
}

.site-nav.scrolled {
  background-color: rgba(11, 24, 41, 0.96);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-white);
  letter-spacing: 0.01em;
}

.nav-logo .logo-accent {
  color: var(--color-grove-glow);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.84375rem;  /* 13.5px */
  font-weight: 400;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--color-white);
}

.nav-cta {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 9px 22px;
  border-radius: var(--radius-sm);
  background-color: var(--color-grove);
  color: var(--color-white);
  transition: background-color var(--transition-fast);
}

.nav-cta:hover,
.nav-cta:focus-visible {
  background-color: var(--color-grove-lt);
}


/* ── HAMBURGER ───────────────────────────────────────────────── */

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 6px;
  border-radius: var(--radius-sm);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--color-white);
  transition: transform var(--transition-mid),
              opacity var(--transition-mid);
}

/* Estado abierto */
.hamburger.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.hamburger.is-open span:nth-child(2) {
  opacity: 0;
}
.hamburger.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}


/* ── MENÚ MOBILE ─────────────────────────────────────────────── */

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background-color: rgba(11, 24, 41, 0.97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding-block: var(--space-5) var(--space-7);
  z-index: 99;
}

.mobile-menu.is-open {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 14px var(--gutter);
  color: rgba(255, 255, 255, 0.75);
  font-size: var(--text-base);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color var(--transition-fast);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu a:hover,
.mobile-menu a:focus-visible {
  color: var(--color-white);
}

.mobile-menu .mobile-cta {
  color: var(--color-grove-glow);
  font-weight: 500;
  margin-top: var(--space-1);
}


/* ── HERO DIAGRAM ────────────────────────────────────────────── */

.hero-diagram {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.diagram-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;    /* 10px */
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-fog);
  margin-bottom: var(--space-6);
}

.diagram-step {
  padding: 13px 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
  background-color: rgba(255, 255, 255, 0.04);
}

.diagram-step--accent {
  border-color: var(--color-grove);
  color: var(--color-grove-glow);
  background-color: rgba(30, 77, 59, 0.25);
}

.diagram-arrow {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding-left: 22px;
  margin-block: var(--space-1);
}

.diagram-arrow .arrow-line {
  width: 1px;
  height: 18px;
  background-color: rgba(255, 255, 255, 0.15);
}

.diagram-arrow .arrow-tip {
  font-size: 9px;
  color: rgba(255, 255, 255, 0.25);
  line-height: 1;
}


/* ── PROBLEMA ITEMS ──────────────────────────────────────────── */

.problem-list {
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.problem-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  padding: var(--space-5) var(--space-6);
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-mist);
  transition: background-color var(--transition-fast);
}

.problem-item:last-child {
  border-bottom: none;
}

.problem-item:hover {
  background-color: #f9fbff;
}

.problem-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: rgba(30, 77, 59, 0.1);
  font-size: 0.8125rem;
  margin-top: 2px;
}

.problem-item-title {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 3px;
}

.problem-item-desc {
  font-size: 0.84375rem;
  color: var(--color-body);
  line-height: 1.6;
}


/* ── ENFOQUE STEPS ───────────────────────────────────────────── */

.step-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
}

.step-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 18px;
  align-items: start;
}

.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.03em;
  color: var(--color-fog);
}

.step-item--accent .step-num {
  background-color: var(--color-grove);
  border-color: var(--color-grove);
  color: var(--color-white);
}

.step-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 5px;
  line-height: 1.35;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--color-fog);
  line-height: 1.7;
}


/* ── ÁREA CARDS ──────────────────────────────────────────────── */

.areas-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background-color: var(--color-mist);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.area-card {
  background-color: var(--color-white);
  padding: clamp(24px, 3vw, 36px);
  transition: background-color var(--transition-fast);
}

.area-card:hover {
  background-color: var(--color-paper);
}

.area-num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-grove);
  margin-bottom: 14px;
}

.area-card h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--space-2);
  line-height: 1.35;
}

.area-card p {
  font-size: 0.875rem;
  color: var(--color-body);
  line-height: 1.7;
}


/* ── CASO CARDS ──────────────────────────────────────────────── */

.casos-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

.caso-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-mist);
  border-left: 3px solid var(--color-grove);
  border-radius: var(--radius-md);
  padding: clamp(24px, 3vw, 36px);
  transition: box-shadow var(--transition-fast);
}

.caso-card:hover {
  box-shadow: var(--shadow-card);
}

.caso-header {
  margin-bottom: var(--space-5);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-mist);
}

.caso-company {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 3px;
}

.caso-sector {
  font-size: 0.8125rem;
  color: var(--color-fog);
}

.case-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-grove);
  margin-bottom: 5px;
}

.caso-card p {
  font-size: 0.875rem;
  color: var(--color-prose);
  line-height: 1.65;
}


/* ── PERFIL / SECTOR LIST ────────────────────────────────────── */

.sector-list {
  border-top: 1px solid var(--color-mist);
}

.sector-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-mist);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-ink);
  transition: color var(--transition-fast);
}

.sector-list li:hover {
  color: var(--color-grove);
}

.sector-list li::before {
  content: '';
  display: block;
  flex-shrink: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-grove);
}


/* ── FORMULARIO ──────────────────────────────────────────────── */

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
}

.form-group input,
.form-group textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-ink);
  background-color: var(--color-white);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-group input:hover,
.form-group textarea:hover {
  border-color: var(--color-fog);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-grove);
  box-shadow: 0 0 0 3px rgba(30, 77, 59, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
}

.form-submit {
  align-self: flex-start;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 13px 30px;
  border-radius: var(--radius-sm);
  background-color: var(--color-grove);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.form-submit:hover,
.form-submit:focus-visible {
  background-color: var(--color-grove-lt);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-success {
  display: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-grove);
  margin-top: var(--space-2);
}

.form-success.is-visible {
  display: block;
}


/* ── FOOTER ──────────────────────────────────────────────────── */

.site-footer {
  background-color: var(--color-ink);
  padding-block: 36px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  flex-wrap: wrap;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.125rem;
  color: var(--color-white);
}

.footer-logo .logo-accent {
  color: var(--color-grove-glow);
}

.footer-nav {
  display: flex;
  gap: 28px;
}

.footer-nav a {
  font-size: 0.8125rem;
  color: var(--color-fog);
  transition: color var(--transition-fast);
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--color-white);
}

.footer-copy {
  font-size: 0.75rem;
  color: #445f7a;
}


/* ── CASO CARD FEATURED ─────────────────────────────────────── */

.caso-card--featured {
  border-color: rgba(125, 222, 184, 0.25);
}

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

.caso-block {
  padding-left: var(--space-4);
  border-left: 2px solid rgba(255, 255, 255, 0.08);
}

.caso-block--resultado {
  border-left-color: var(--color-grove-glow);
}

.caso-block-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-fog);
  margin-bottom: var(--space-1);
}

.caso-block-label--enfoque {
  color: var(--color-mist);
}

.caso-block-label--resultado {
  color: var(--color-grove-glow);
}