/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-primary: #1a1a2e;
  --color-accent: #e8a838;
  --color-accent-dark: #d4922d;
  --color-text: #2d2d2d;
  --color-text-light: #6b7280;
  --color-white: #ffffff;
  --color-bg: #f9fafb;
  --color-bg-alt: #f1f3f5;
  --color-border: #e5e7eb;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --container-max: 1200px;
  --section-padding: 6rem 0;
  --border-radius: 12px;
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

.text-accent {
  color: var(--color-accent);
}

/* ===== Section Headings ===== */
.section__subtitle {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

/* ===== Header / Navigation ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}

.header--scrolled {
  background: rgba(26, 26, 46, 0.97);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(10px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav__logo {
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  color: var(--color-white);
}

.nav__logo-bold {
  font-weight: 900;
}

.nav__logo-light {
  font-weight: 300;
  opacity: 0.7;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav__toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: var(--transition);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: color var(--transition);
  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-white);
}

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

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: url('../img/aluminio.jpg') center/cover no-repeat;
  overflow: hidden;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 26, 46, 0.92) 0%, rgba(26, 26, 46, 0.7) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  padding: 2rem 0;
}

.hero__subtitle {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.hero__title {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 900;
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero__description {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 2rem;
  max-width: 550px;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-family);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}

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

.btn--primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232, 168, 56, 0.3);
}

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

.btn--outline:hover {
  border-color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

/* ===== Pillars ===== */
.pillars {
  padding: 5rem 0;
  background: var(--color-primary);
}

.pillars__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.pillar {
  text-align: center;
  padding: 2.5rem 2rem;
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  transition: all var(--transition);
}

.pillar:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(232, 168, 56, 0.3);
  transform: translateY(-4px);
}

.pillar__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(232, 168, 56, 0.12);
  color: var(--color-accent);
}

.pillar__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.pillar__text {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
}

/* ===== About ===== */
.about {
  padding: var(--section-padding);
  background: var(--color-white);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about__image-wrapper {
  position: relative;
}

.about__image {
  width: 100%;
  height: 500px;
  object-fit: cover;
  border-radius: var(--border-radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.about__badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--color-accent);
  color: var(--color-primary);
  padding: 1.25rem 1.5rem;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: 0 10px 30px rgba(232, 168, 56, 0.3);
}

.about__badge-number {
  display: block;
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
}

.about__badge-text {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about__text {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 1rem;
}

.about__stats {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.about__stat {
  text-align: center;
}

.about__stat-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
}

.about__stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== Why Us ===== */
.why-us {
  padding: 4rem 0;
  background: var(--color-bg);
}

.why-us__inner {
  max-width: 750px;
  margin: 0 auto;
  text-align: center;
}

.why-us__title {
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.why-us__text {
  font-size: 1.0625rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ===== Products ===== */
.products {
  padding: var(--section-padding);
  background: var(--color-white);
}

.product {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-top: 4rem;
  padding: 2.5rem;
  border-radius: var(--border-radius);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.product:hover {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
}

.product--reverse {
  direction: rtl;
}

.product--reverse > * {
  direction: ltr;
}

.product__image-wrapper {
  overflow: hidden;
  border-radius: 8px;
}

.product__image {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 8px;
  transition: transform 0.5s ease;
}

.product:hover .product__image {
  transform: scale(1.03);
}

.product__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-dark);
  background: rgba(232, 168, 56, 0.1);
  padding: 0.35rem 0.875rem;
  border-radius: 50px;
  margin-bottom: 1rem;
}

.product__title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 1rem;
  line-height: 1.3;
}

.product__text {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  margin-bottom: 1rem;
  line-height: 1.7;
}

.product__text--highlight {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(232, 168, 56, 0.08);
  padding: 1rem 1.25rem;
  border-radius: 8px;
  border-left: 3px solid var(--color-accent);
}

.product__list {
  margin-bottom: 1rem;
}

.product__list li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.9375rem;
  color: var(--color-text-light);
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.product__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.product__features {
  display: grid;
  gap: 1rem;
}

.product__feature h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.product__feature p {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ===== Contact ===== */
.contact {
  padding: var(--section-padding);
  background: var(--color-bg);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact__text {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 2rem;
}

.contact__items {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact__item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--color-white);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.contact__item:hover {
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
}

.contact__item-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(232, 168, 56, 0.1);
  color: var(--color-accent);
}

.contact__item-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  margin-bottom: 0.25rem;
}

.contact__item-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: color var(--transition);
}

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

.contact__item-extra {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-top: 0.15rem;
}

.contact__map {
  min-height: 420px;
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.contact__map iframe {
  width: 100%;
  height: 100%;
  min-height: 420px;
}

/* ===== Footer ===== */
.footer {
  background: var(--color-primary);
  padding: 3rem 0;
}

.footer__inner {
  text-align: center;
}

.footer__logo {
  font-size: 1.25rem;
  color: var(--color-white);
  letter-spacing: 0.05em;
}

.footer__tagline {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
}

.footer__links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.footer__links a {
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: color var(--transition);
}

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

.footer__copy {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.35);
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .about__grid {
    gap: 3rem;
  }

  .about__image {
    height: 400px;
  }

  .product {
    gap: 2rem;
    padding: 2rem;
  }

  .product__image {
    height: 260px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 4rem 0;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-primary);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    transition: right var(--transition);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
  }

  .nav__menu.open {
    right: 0;
  }

  .nav__link {
    font-size: 1rem;
  }

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

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

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

  .hero__content {
    padding: 6rem 0 2rem;
  }

  .pillars__grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about__image {
    height: 300px;
  }

  .about__badge {
    bottom: -15px;
    right: 15px;
  }

  .about__stats {
    justify-content: space-around;
  }

  .product {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
  }

  .product--reverse {
    direction: ltr;
  }

  .product__image {
    height: 220px;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact__map {
    min-height: 300px;
  }

  .contact__map iframe {
    min-height: 300px;
  }

  .footer__links {
    flex-wrap: wrap;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 1.75rem;
  }

  .hero__actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .about__stats {
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
  }
}