/* ============================================
   DFC Industrial Services — Components
   ============================================ */

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  padding: 16px 0;
  transition: all var(--transition-normal);
  background: var(--color-primary);
}

.nav.scrolled {
  background: var(--color-primary);
  padding: 10px 0;
  box-shadow: var(--shadow-md);
  border-bottom: 2px solid var(--color-accent);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: var(--fw-bold);
  font-size: 1.15rem;
  letter-spacing: 0.3px;
  z-index: var(--z-modal);
}

.nav__logo img {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.nav__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav__logo-text span:first-child {
  font-weight: var(--fw-bold);
  color: var(--color-dark-text);
}

.nav__logo-text span:last-child {
  font-size: var(--fs-xs);
  color: var(--color-gray-400);
  font-weight: var(--fw-regular);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
  position: relative;
  letter-spacing: 0.3px;
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-accent);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--color-accent);
  transition: width var(--transition-normal);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

/* Dropdown */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.nav__dropdown-toggle svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.nav__dropdown:hover .nav__dropdown-toggle svg {
  transform: rotate(180deg);
}

.nav__dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px;
  background: var(--color-white);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-lg);
}

.nav__dropdown:hover .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown-item {
  display: block;
  padding: 10px 16px;
  font-size: var(--fs-small);
  color: var(--color-gray-400);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav__dropdown-item:hover {
  background: rgba(0, 168, 232, 0.1);
  color: var(--color-accent);
}

.nav__cta {
  margin-left: var(--space-md);
}

/* Mobile menu toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: var(--z-modal);
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark-text);
  transition: all var(--transition-fast);
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Phone bar */
.nav__phone {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-small);
  color: var(--color-accent);
  font-weight: var(--fw-medium);
}

.nav__phone svg {
  width: 16px;
  height: 16px;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 750px;
  padding-top: 100px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  background: var(--color-accent);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s var(--ease-out);
}

.hero__badge svg {
  width: 14px;
  height: 14px;
}

.hero__title {
  font-size: var(--fs-hero);
  font-weight: var(--fw-extra);
  line-height: 1.1;
  color: var(--color-white);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  margin-bottom: var(--space-lg);
  animation: fadeInUp 0.8s var(--ease-out) 0.1s both;
}

.hero__subtitle {
  font-size: var(--fs-body-lg);
  color: var(--color-gray-100);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
  line-height: var(--lh-loose);
  margin-bottom: var(--space-2xl);
  max-width: 580px;
  animation: fadeInUp 0.8s var(--ease-out) 0.2s both;
  font-weight: var(--fw-medium);
}

.hero__actions {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s var(--ease-out) 0.3s both;
}

.hero__stats {
  display: flex;
  gap: var(--space-3xl);
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--border-subtle);
  animation: fadeInUp 0.8s var(--ease-out) 0.4s both;
}

.hero__stat-value {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: var(--fw-extra);
  color: var(--color-accent);
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
  line-height: 1;
  margin-bottom: 4px;
}

.hero__stat-label {
  font-size: var(--fs-small);
  color: var(--color-gray-100);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
  font-weight: var(--fw-semi);
  letter-spacing: 0.3px;
}

/* Floating particles (decorative) */
.hero__particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.hero__particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 50%;
  opacity: 0;
  animation: float-particle 8s infinite;
}

@keyframes float-particle {
  0% { opacity: 0; transform: translateY(100vh); }
  10% { opacity: 0.3; }
  90% { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(-100px); }
}

/* ---- Cards ---- */
.card {
  background: var(--gradient-card);
  border: var(--border-card);
  border-radius: var(--radius-md);
  padding: var(--space-2xl);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  border-color: rgba(0, 168, 232, 0.2);
}

.card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 168, 232, 0.1);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  color: var(--color-accent);
}

.card__icon svg {
  width: 28px;
  height: 28px;
}

.card__title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-md);
}

.card__text {
  color: var(--color-gray-400);
  font-size: var(--fs-body);
  line-height: var(--lh-loose);
}

/* Light card variant */
.card--light {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  color: var(--color-dark-text);
}

.card--light .card__text {
  color: var(--color-gray-400);
}

/* ---- Stats Bar ---- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.stat {
  padding: var(--space-md) var(--space-sm);
}

.stat__value {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: var(--fw-extra);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat__label {
  font-size: var(--fs-small);
  color: var(--color-gray-400);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ---- Industry Grid ---- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.industry-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  background: var(--gradient-card);
  border: var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: default;
}

.industry-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 168, 232, 0.2);
  box-shadow: var(--shadow-glow);
}

.industry-card__icon {
  width: 72px;
  height: 72px;
  margin-bottom: var(--space-lg);
  object-fit: contain;
  filter: brightness(0) opacity(0.6);
  transition: filter var(--transition-normal);
}

.industry-card:hover .industry-card__icon {
  filter: brightness(0) opacity(1);
}

.industry-card__name {
  font-size: var(--fs-small);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-dark-text);
}

/* ---- Cards Grid (Why DFC) ---- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

/* ---- Promise Grid (Video / Text) ---- */
.promise-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

/* ---- Services Preview ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xl);
}

.service-card {
  background: var(--gradient-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to top, rgba(0, 168, 232, 0.03), transparent);
  pointer-events: none;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 168, 232, 0.2);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.service-card__number {
  font-size: 4rem;
  font-weight: var(--fw-extra);
  color: var(--color-gray-400);
  line-height: 1;
  margin-bottom: var(--space-lg);
}

.service-card__title {
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-lg);
}

.service-card__text {
  color: var(--color-gray-400);
  line-height: var(--lh-loose);
  margin-bottom: var(--space-xl);
}

.service-card__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.service-card__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  font-size: var(--fs-body);
  color: var(--color-gray-400);
}

.service-card__feature svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ---- Contact Form ---- */
.contact-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.contact-info__title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-extra);
  margin-bottom: var(--space-lg);
}

.contact-info__text {
  color: var(--color-gray-400);
  margin-bottom: var(--space-2xl);
  line-height: var(--lh-loose);
}

.contact-detail {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.contact-detail__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 168, 232, 0.1);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  flex-shrink: 0;
}

.contact-detail__icon svg {
  width: 22px;
  height: 22px;
}

.contact-detail__label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-gray-400);
  font-weight: var(--fw-bold);
  margin-bottom: 4px;
}

.contact-detail__value {
  font-size: var(--fs-body);
  color: var(--color-dark-text);
  line-height: var(--lh-normal);
}

.contact-detail__value a {
  color: var(--color-accent);
  transition: color var(--transition-fast);
}

.contact-detail__value a:hover {
  color: var(--color-secondary);
}

/* Form */
.form {
  background: var(--gradient-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
}

.form__group {
  margin-bottom: var(--space-lg);
}

.form__label {
  display: block;
  font-size: var(--fs-small);
  font-weight: var(--fw-semi);
  color: var(--color-dark-text);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.3px;
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  color: var(--color-dark-text);
  font-size: var(--fs-body);
  transition: all var(--transition-fast);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--color-gray-400);
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
  background: var(--color-white);
}

.form__textarea {
  resize: vertical;
  min-height: 140px;
}

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

.form__submit {
  width: 100%;
  margin-top: var(--space-md);
}

/* ---- Footer ---- */
.footer {
  background: var(--color-primary-light);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer__brand {
  max-width: 320px;
}

.footer__brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.footer__brand-logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
}

.footer__brand-logo span {
  font-weight: var(--fw-bold);
  font-size: var(--fs-body-lg);
  color: var(--color-dark-text);
}

.footer__brand-text {
  color: var(--color-gray-400);
  font-size: var(--fs-small);
  line-height: var(--lh-loose);
  margin-bottom: var(--space-lg);
}

.footer__heading {
  font-size: var(--fs-small);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-dark-text);
  margin-bottom: var(--space-lg);
}

.footer__link {
  display: block;
  color: var(--color-gray-400);
  font-size: var(--fs-small);
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-accent);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
  font-size: var(--fs-xs);
  color: var(--color-gray-400);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2xl) var(--space-lg);
  }

  .industry-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .contact-section {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  /* Mobile Nav */
  .nav__links {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--color-primary);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-xl);
    padding: var(--space-3xl);
  }

  .nav__links.open {
    display: flex;
  }

  .nav__link {
    font-size: var(--fs-h3);
  }

  .nav__dropdown-menu {
    position: static;
    transform: none;
    background: transparent;
    border: none;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    padding: 0;
    min-width: auto;
    text-align: center;
  }

  .nav__dropdown-toggle {
    justify-content: center;
    width: 100%;
  }

  .nav__cta {
    margin-left: 0;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__phone {
    display: none;
  }

  /* Hero mobile */
  .hero {
    min-height: 100svh;
  }

  .hero__content {
    padding-top: 120px;
    padding-bottom: var(--space-2xl);
  }

  .hero__stats {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .stats-bar {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .hero__actions {
    flex-direction: column;
  }

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

  /* Industry grid mobile */
  .industry-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .industry-card {
    padding: var(--space-lg) var(--space-md);
  }

  .industry-card__icon {
    width: 52px;
    height: 52px;
  }

  /* Form mobile */
  .form__row {
    grid-template-columns: 1fr;
  }

  /* Cards grid mobile */
  .cards-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  /* Promise grid mobile */
  .promise-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  /* Footer mobile */
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}