/* ============================================
   MAIN STYLES - Bilbao Consultores
   Estilos globales: Header, Footer, Botones, Cards
   ============================================ */

/* ===== LAYOUT GLOBAL ===== */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-narrow {
  max-width: 980px;
}

.container-wide {
  max-width: 1400px;
}

/* ===== HEADER ===== */
.site-header {
  background: var(--color-bg-white);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  padding: 20px 0;
  transition: all var(--transition-base);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
}

.site-logo {
  flex-shrink: 0;
  line-height: 0;
}

.site-logo img {
  width: 240px;
  height: 56px;
  object-fit: contain;
  object-position: left center;
  display: block;
}

/* ===== NAVEGACIÓN ===== */
.main-navigation {
  display: flex;
  align-items: center;
}

.menu {
  display: flex;
  gap: 8px;
  align-items: center;
}

.menu li {
  position: relative;
}

.menu > li > a {
  font-weight: var(--font-weight-medium);
  font-size: 14px;
  color: var(--color-text-dark);
  padding: 10px 16px;
  border-radius: 6px;
  transition: all var(--transition-fast);
  display: block;
  letter-spacing: 0.01em;
  text-transform: capitalize;
}

.menu > li > a:hover {
  background: rgba(68, 160, 38, 0.08);
  color: var(--color-primary);
}

/* Submenú desplegable */
.menu-item-has-children {
  position: relative;
}

.menu-item-has-children > a::after {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 6px;
  vertical-align: middle;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: 0.5;
  transition: all var(--transition-fast);
}

.menu-item-has-children:hover > a::after {
  opacity: 1;
  transform: translateY(1px);
}

.sub-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--color-bg-white);
  min-width: 240px;
  padding: 8px;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  border: 1px solid var(--color-border);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-base);
  z-index: var(--z-dropdown);
}

.menu-item-has-children:hover .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sub-menu li a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--color-text-dark);
  border-radius: 4px;
  transition: all var(--transition-fast);
  font-weight: var(--font-weight-normal);
}

.sub-menu li a:hover {
  background: rgba(68, 160, 38, 0.08);
  color: var(--color-primary);
}

/* Menú toggle (mobile) */
.menu-toggle {
  display: none;
  font-size: 28px;
  color: var(--color-text-dark);
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-bg-dark);
  color: var(--color-bg-light);
  padding: 60px 0 0;
  margin-top: 80px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-logo {
  width: 200px;
  height: auto;
  filter: brightness(0) invert(1);
  opacity: 0.95;
}

.footer-tagline {
  font-size: 15px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
  max-width: 280px;
}

.footer-contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.footer-contact-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.footer-contact-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(68, 160, 38, 0.15);
  border-radius: 8px;
  color: var(--color-primary-light);
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-contact-label {
  font-size: 12px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}

.footer-contact-info p {
  font-size: 15px;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
}

.footer-contact-info a {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-contact-info a:hover {
  color: var(--color-primary-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 30px 0;
}

.footer-copyright p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  color: var(--color-primary-light);
}

/* ===== BOTONES ===== */
.c-btn,
.btn-primary {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--color-primary);
  color: var(--color-bg-white);
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-weight: var(--font-weight-bold);
  font-size: 16px;
  text-align: center;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-btn);
  min-width: 200px;
}

/* Efecto ripple al hacer click (ver assets/js/main.js) */
.c-btn .ripple,
.btn-primary .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  transform: scale(0);
  animation: ripple-expand 0.6s ease-out;
  pointer-events: none;
}

@keyframes ripple-expand {
  to {
    transform: scale(1);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .c-btn .ripple,
  .btn-primary .ripple {
    animation: none;
    display: none;
  }
}

.c-btn svg,
.btn-primary svg {
  flex-shrink: 0;
}

/* Asegurar color blanco en botones que son enlaces */
a.c-btn,
a.btn-primary {
  color: var(--color-bg-white) !important;
}

.c-btn:hover,
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-btn-hover);
  color: var(--color-bg-white) !important;
}

.c-btn:active,
.btn-primary:active {
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-bg-white);
}

.btn-large {
  padding: 18px 42px;
  font-size: 18px;
  min-width: 250px;
}

/* ===== MENSAJE DE FEEDBACK DE FORMULARIOS (contacto, landing) ===== */
.form-message {
  display: none;
  align-items: flex-start;
  gap: 14px;
  margin-top: 20px;
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  text-align: left;
  box-shadow: var(--shadow-sm);
  animation: form-message-in 0.35s ease;
}

.form-message.success,
.form-message.error {
  display: flex;
}

.form-message__icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.form-message__icon svg {
  width: 16px;
  height: 16px;
}

.form-message__title {
  margin: 0 0 2px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
}

.form-message__text {
  margin: 0;
  font-size: var(--font-size-sm);
  line-height: 1.5;
  color: var(--color-text-body);
}

.form-message.success {
  background: rgba(68, 160, 38, 0.08);
  border: 1px solid rgba(68, 160, 38, 0.25);
}

.form-message.success .form-message__icon {
  background: var(--color-primary);
  color: var(--color-bg-white);
}

.form-message.error {
  background: rgba(220, 53, 69, 0.08);
  border: 1px solid rgba(220, 53, 69, 0.25);
}

.form-message.error .form-message__icon {
  background: #dc3545;
  color: var(--color-bg-white);
}

@keyframes form-message-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .form-message {
    animation: none;
  }
}

/* ===== CARDS ===== */
.card {
  background: var(--color-bg-white);
  border-radius: var(--radius-2xl);
  padding: 28px 26px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-subtle);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card h3,
.card h4 {
  margin-bottom: 15px;
  color: var(--color-text-dark);
}

.card p {
  color: var(--color-text-body);
  line-height: 1.7;
}

/* ===== UTILITY CLASSES ===== */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-md); }
.mt-2 { margin-top: var(--spacing-lg); }
.mt-3 { margin-top: var(--spacing-xl); }
.mt-4 { margin-top: var(--spacing-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-lg); }
.mb-3 { margin-bottom: var(--spacing-xl); }
.mb-4 { margin-bottom: var(--spacing-2xl); }

.section {
  padding: 60px 0;
}

.section-lg {
  padding: 80px 0;
}

/* ===== RESPONSIVE MOBILE ===== */
@media (max-width: 767px) {
  .container {
    padding: 0 15px;
  }

  .site-header {
    padding: 16px 0;
  }

  .site-logo img {
    width: 180px;
    height: 42px;
  }

  .menu-toggle {
    display: block;
  }

  .main-navigation {
    display: block;
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--color-bg-white);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    transition: right var(--transition-slow);
    z-index: var(--z-fixed);
    overflow-y: auto;
  }

  .main-navigation.is-open {
    right: 0;
  }

  .menu {
    flex-direction: column;
    gap: 0;
    padding: 60px 0 20px;
  }

  .menu > li {
    width: 100%;
    border-bottom: 1px solid var(--color-border);
  }

  .menu > li > a {
    display: block;
    padding: 15px 20px;
    border-radius: 0;
  }

  .sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
  }

  .menu-item-has-children.is-open .sub-menu {
    max-height: 500px;
  }

  .sub-menu li a {
    padding-left: 40px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-bottom: 40px;
  }

  .footer-contact-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .footer-legal {
    flex-direction: column;
    gap: 12px;
  }

  .section {
    padding: 40px 0;
  }

  .section-lg {
    padding: 50px 0;
  }

  .card {
    padding: 22px 18px;
  }
}

/* ===== RESPONSIVE TABLET ===== */
@media (min-width: 768px) and (max-width: 1024px) {
  .container {
    max-width: 100%;
    padding: 0 30px;
  }

  .menu {
    gap: 18px;
  }

  .menu > li > a {
    font-size: 14px;
    padding: 8px 12px;
  }

  .footer-main {
    gap: 50px;
  }

  .footer-contact-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* ===== OVERLAY MENU MOBILE ===== */
.menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: calc(var(--z-sticky) - 1);
}

.menu-overlay.is-active {
  display: block;
}

/* Close button para menú mobile */
.menu-close {
  position: absolute;
  top: 15px;
  right: 15px;
  font-size: 32px;
  color: var(--color-text-dark);
  background: none;
  border: none;
  cursor: pointer;
  display: none;
}

@media (max-width: 767px) {
  .main-navigation .menu-close {
    display: block;
  }
}