/* ============================================================
   INTELHIA — Reusable Components
   components.css: nav, buttons, cards, forms, footer, whatsapp
   ============================================================ */

/* ── Navigation ── */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background-color var(--transition-base),
              border-bottom-color var(--transition-base),
              box-shadow var(--transition-base);
  background-color: transparent;
  border-bottom: 1px solid transparent;
}

.site-nav.scrolled {
  background-color: var(--nav-bg-scrolled);
  border-bottom-color: var(--nav-border-scrolled);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
}

.nav-inner {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo__name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: var(--fw-bold);
  color: var(--color-white);
  letter-spacing: 0.12em;
  line-height: 1;
  opacity: 0.92;
  transition: opacity 0.2s ease;
}

.nav-logo:hover .nav-logo__name {
  opacity: 1;
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links a {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-regular);
  color: var(--color-text-light);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 3px;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-blue-deep);
  transition: width var(--transition-base);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.nav-toggle:hover {
  background-color: rgba(255, 255, 255, 0.08);
}

.nav-toggle__bar {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--color-white);
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

.nav-toggle.open .nav-toggle__bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-toggle.open .nav-toggle__bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-toggle.open .nav-toggle__bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile Nav Drawer */
.nav-drawer {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(10, 10, 10, 0.98);
  z-index: calc(var(--z-nav) - 1);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding: var(--space-12);
  transform: translateY(-100%);
  transition: transform var(--transition-base);
}

.nav-drawer.open {
  transform: translateY(0);
}

.nav-drawer a {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  color: var(--color-white);
  opacity: 0.85;
  transition: opacity var(--transition-fast), color var(--transition-fast);
}

.nav-drawer a:hover,
.nav-drawer a.active {
  opacity: 1;
  color: var(--color-blue-deep);
}

.nav-drawer .btn {
  margin-top: var(--space-4);
}

/* Hamburger-only nav — all screen sizes */
.nav-links {
  display: none;
}

.nav-toggle {
  display: flex;
}

.nav-drawer {
  display: flex;
}

/* ── Buttons ── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast),
              border-color var(--transition-fast),
              color var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast);
  white-space: nowrap;
  min-height: 48px;
  border: 2px solid transparent;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

/* Primary Button */
.btn--primary {
  background-color: var(--color-blue-deep);
  border-color: var(--color-blue-deep);
  color: var(--color-white);
}

.btn--primary:hover {
  background-color: var(--color-blue-petroleum);
  border-color: var(--color-blue-petroleum);
  color: var(--color-white);
  box-shadow: 0 6px 20px rgba(31, 78, 121, 0.4);
}

/* Outlined Button */
.btn--outline {
  background-color: transparent;
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--color-white);
}

.btn--outline:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: var(--color-white);
  color: var(--color-white);
}

/* Ghost / Text Button */
.btn--ghost {
  background-color: transparent;
  border-color: transparent;
  color: var(--color-text-light);
  padding-inline: 0;
}

.btn--ghost:hover {
  color: var(--color-white);
  transform: none;
}

.btn--ghost:hover .btn__arrow {
  transform: translateX(4px);
}

.btn__arrow {
  transition: transform var(--transition-fast);
  display: inline-block;
}

/* ── Cards ── */

/* Dark Service Card */
.card-dark {
  background: var(--gradient-card);
  border: 1px solid rgba(31, 78, 121, 0.25);
  border-left: 3px solid var(--color-blue-deep);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  transition: transform var(--transition-base),
              box-shadow var(--transition-base),
              border-left-color var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card-dark::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-blue-deep), transparent);
  opacity: 0.4;
}

.card-dark:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-left-color: #4A90D9;
}

.card-dark__icon {
  font-size: 2rem;
  margin-bottom: var(--space-4);
  display: block;
}

.card-dark__label {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.card-dark__title {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  color: var(--color-white);
  margin-bottom: var(--space-4);
  line-height: 1.3;
}

.card-dark__body {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.card-dark__link {
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-blue-deep);
  letter-spacing: 0.06em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: color var(--transition-fast), gap var(--transition-fast);
}

.card-dark__link:hover {
  color: #4A90D9;
  gap: var(--space-3);
}

/* Light Card */
.card-light {
  background: var(--color-white);
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-light:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* ── Value Pill ── */

.value-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  background-color: rgba(31, 78, 121, 0.12);
  border: 1px solid rgba(31, 78, 121, 0.3);
  border-radius: 100px;
  padding: 0.5rem 1.25rem;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-blue-deep);
  letter-spacing: 0.04em;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.value-pill:hover {
  background-color: rgba(31, 78, 121, 0.2);
  border-color: var(--color-blue-deep);
}

/* ── Forms ── */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-graphite);
  letter-spacing: 0.04em;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  color: var(--color-graphite);
  background-color: var(--color-white);
  border: 1.5px solid var(--color-gray-light);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
  min-height: 48px;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-blue-deep);
  box-shadow: 0 0 0 3px rgba(31, 78, 121, 0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #A0A8B0;
}

.form-input.error,
.form-textarea.error {
  border-color: #DC2626;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-error {
  font-size: var(--fs-xs);
  color: #DC2626;
  display: none;
}

.form-error.visible {
  display: block;
}

/* Form Success State */
.form-success {
  display: none;
  background: linear-gradient(135deg, #ECFDF5, #D1FAE5);
  border: 1px solid #6EE7B7;
  border-radius: var(--radius-md);
  padding: var(--space-8);
  text-align: center;
}

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

.form-success__icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
}

.form-success__title {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  color: #065F46;
  margin-bottom: var(--space-3);
}

.form-success__text {
  color: #047857;
  line-height: 1.7;
}

/* ── Footer ── */

.site-footer {
  background-color: var(--color-black);
  border-top: 1px solid rgba(31, 78, 121, 0.2);
  padding-block: var(--space-16) var(--space-8);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-logo__name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  color: var(--color-white);
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
}

.footer-logo__tagline {
  font-size: var(--fs-xs);
  font-weight: var(--fw-light);
  color: var(--color-text-muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.footer-logo__claim {
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-style: italic;
  color: var(--color-text-light);
  letter-spacing: 0.01em;
  margin-bottom: var(--space-6);
}

.footer-logo__desc {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 320px;
}

.footer-col__title {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  opacity: 0.75;
  transition: opacity var(--transition-fast), color var(--transition-fast);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--color-white);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer-contact-item a {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  opacity: 0.75;
  transition: opacity var(--transition-fast), color var(--transition-fast);
}

.footer-contact-item a:hover {
  opacity: 1;
  color: var(--color-white);
}

.footer-contact-icon {
  color: var(--color-blue-deep);
  font-size: 1rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-copyright {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  opacity: 0.7;
}

@media (max-width: 1023px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

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

/* ── WhatsApp Floating Button ── */

.whatsapp-btn {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-floating);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-whatsapp);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: background-color var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast);
  animation: whatsapp-pulse 2.8s ease-in-out infinite;
  text-decoration: none;
}

.whatsapp-btn:hover {
  background-color: var(--color-whatsapp-hover);
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
  animation: none;
}

.whatsapp-btn svg {
  width: 28px;
  height: 28px;
  fill: var(--color-white);
}

@keyframes whatsapp-pulse {
  0%, 100% {
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 4px 28px rgba(37, 211, 102, 0.65);
    transform: scale(1.05);
  }
}

/* ── CTA Banner Section ── */

.cta-banner {
  background: var(--gradient-cta);
  padding-block: var(--space-20);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: none;
}

.cta-banner__title {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  color: var(--color-white);
  margin-bottom: var(--space-8);
  max-width: 680px;
  margin-inline: auto;
  line-height: 1.25;
}

.cta-banner__subtitle {
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: var(--space-8);
  font-size: var(--fs-md);
}

/* ── Hero Page Header (compact — subpages) ── */

.page-hero {
  background: var(--gradient-hero-alt);
  padding-top: calc(var(--nav-height) + var(--space-16));
  padding-bottom: var(--space-16);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--color-white));
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero__label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.page-hero__title {
  font-family: var(--font-heading);
  font-size: var(--fs-3xl);
  color: var(--color-white);
  margin-bottom: var(--space-5);
  max-width: 720px;
}

.page-hero__subtitle {
  font-size: var(--fs-md);
  color: var(--color-text-light);
  max-width: 600px;
  line-height: 1.7;
}

/* ── Geometric Decorative Elements ── */

.geo-circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(31, 78, 121, 0.15);
  pointer-events: none;
}

.geo-dot-grid {
  position: absolute;
  pointer-events: none;
  background-image: radial-gradient(circle, rgba(31, 78, 121, 0.25) 1px, transparent 1px);
  background-size: 24px 24px;
}