/* ============================================
   Co-Excellence - Diesel Farm Tricycle Parts Theme
   ============================================ */

:root {
  --color-bg: #0a0a0b;
  --color-bg-elevated: #141416;
  --color-bg-card: #1a1a1e;
  --color-surface: #222228;
  --color-border: #2e2e36;
  --color-text: #e8e8ec;
  --color-text-muted: #9a9aa8;
  --color-accent: #c41e2a;
  --color-accent-hover: #e02535;
  --color-accent-dim: rgba(196, 30, 42, 0.15);
  --font-display: "Oswald", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;
  --header-height: 80px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-lg: 0 24px 48px rgba(0, 0, 0, 0.5);
  --max-width: 1280px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section--dark {
  background: var(--color-bg-elevated);
}

.section__label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section__desc {
  color: var(--color-text-muted);
  max-width: 640px;
  margin-bottom: 48px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 14px 32px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(10, 10, 11, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.header--scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo__img {
  height: 44px;
  width: auto;
}

.logo__text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.logo__text span {
  color: var(--color-accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav__link {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  position: relative;
}

.nav__link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

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

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

.nav__cta {
  margin-left: 8px;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition);
}

.menu-toggle--open span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle--open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle--open span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  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: linear-gradient(
    105deg,
    rgba(10, 10, 11, 0.95) 0%,
    rgba(10, 10, 11, 0.75) 45%,
    rgba(10, 10, 11, 0.4) 100%
  );
  z-index: 1;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(196, 30, 42, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(196, 30, 42, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 2;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 3;
  max-width: 720px;
  padding: 80px 0;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--color-accent-dim);
  border: 1px solid rgba(196, 30, 42, 0.3);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 24px;
  animation: fadeUp 0.8s ease forwards;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 700;
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 24px;
  animation: fadeUp 0.8s ease 0.1s forwards;
  opacity: 0;
}

.hero__title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin-bottom: 40px;
  max-width: 520px;
  animation: fadeUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  animation: fadeUp 0.8s ease 0.3s forwards;
  opacity: 0;
}

.hero__stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  animation: fadeUp 0.8s ease 0.4s forwards;
  opacity: 0;
}

.hero__stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-accent);
}

.hero__stat span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Categories */
.categories__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.category-card {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition);
}

.category-card:hover {
  transform: translateY(-6px);
  border-color: rgba(196, 30, 42, 0.4);
}

.category-card__img {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-surface);
}

.category-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.category-card:hover .category-card__img img {
  transform: scale(1.06);
}

.category-card__body {
  padding: 24px;
}

.category-card__icon {
  width: 40px;
  height: 3px;
  background: var(--color-accent);
  margin-bottom: 12px;
}

.category-card__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.category-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Advantages */
.advantages__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.advantage-item {
  text-align: center;
  padding: 40px 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition);
}

.advantage-item:hover {
  border-color: var(--color-accent);
}

.advantage-item__number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.9;
}

.advantage-item__title {
  font-family: var(--font-display);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.advantage-item__text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Factory */
.factory__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}

.factory__gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.factory__img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.factory__img:first-child {
  grid-column: span 2;
  aspect-ratio: 21 / 9;
}

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

.factory__features {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}

.factory__feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.factory__feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-dim);
  border: 1px solid rgba(196, 30, 42, 0.3);
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-accent);
}

/* Partners */
.partners__logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 48px;
  padding: 48px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
}

.partner-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  opacity: 0.6;
  transition: opacity var(--transition), color var(--transition);
}

.partner-logo:hover {
  opacity: 1;
  color: var(--color-text);
}

/* Contact strip */
.contact-strip {
  background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-surface) 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.contact-strip__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  padding: 64px 0;
}

.contact-strip__info {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
}

.contact-strip__item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 4px;
}

/* Footer */
.footer {
  background: var(--color-bg);
  padding: 64px 0 32px;
  border-top: 1px solid var(--color-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-top: 16px;
  max-width: 320px;
}

.footer__heading {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 20px;
  color: var(--color-text);
}

.footer__links li {
  margin-bottom: 10px;
}

.footer__links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Page hero (inner pages) */
.page-hero {
  position: relative;
  padding: calc(var(--header-height) + 80px) 0 80px;
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--color-accent-dim));
  pointer-events: none;
}

.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Products page */
.products-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 48px;
}

.filter-btn {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 10px 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn--active {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-dim);
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 32px;
}

.product-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition);
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(196, 30, 42, 0.35);
}

.product-card__img {
  aspect-ratio: 4 / 3;
  background: var(--color-surface);
  overflow: hidden;
}

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

.product-card__body {
  padding: 24px;
}

.product-card__category {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.product-card__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.product-card__sku {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.product-card.hidden {
  display: none;
}

/* About page */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-intro__img {
  aspect-ratio: 4 / 3;
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline__item {
  position: relative;
  padding-bottom: 40px;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -37px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--color-accent);
  border: 2px solid var(--color-bg);
}

.timeline__year {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.certificates__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 24px;
}

.certificate-card {
  aspect-ratio: 3 / 4;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

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

.values__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.value-card {
  padding: 40px 32px;
  background: var(--color-bg-card);
  border-left: 3px solid var(--color-accent);
}

.value-card h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.value-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Contact page */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
}

.contact-info__item {
  margin-bottom: 32px;
}

.contact-info__item h4 {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.contact-form {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  padding: 40px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: var(--color-text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-message {
  margin-top: 16px;
  padding: 12px;
  font-size: 0.875rem;
  display: none;
}

.form-message--success {
  display: block;
  background: rgba(34, 139, 34, 0.15);
  border: 1px solid rgba(34, 139, 34, 0.4);
  color: #6fcf97;
}

.map-placeholder {
  aspect-ratio: 21 / 9;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-top: 48px;
}

/* Image placeholder fallback */
.img-placeholder {
  width: 100%;
  height: 100%;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-card) 100%);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-align: center;
  padding: 16px;
}

/* Animations */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

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

.breadcrumb span {
  color: var(--color-accent);
}

/* Responsive */
@media (max-width: 1024px) {
  .advantages__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .about-intro,
  .contact-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    padding: 24px;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
  }

  .nav--open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__link {
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav__cta {
    margin: 16px 0 0;
    width: 100%;
  }

  .menu-toggle {
    display: flex;
  }

  .hero__stats {
    flex-direction: column;
    gap: 24px;
  }

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

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

  .contact-strip__inner {
    flex-direction: column;
    text-align: center;
  }

  .contact-strip__info {
    flex-direction: column;
    gap: 24px;
  }
}