/* ============================================
   GLOBAL STYLES & VARIABLES
   ============================================ */

:root {
  --primary-color: #2872af;
  --primary-dark: #1f5486;
  --primary-light: #3a8bc4;
  --neutral-dark: #1a1a1a;
  --neutral-light: #f5f5f5;
  --neutral-gray: #666666;
  --accent-gold: #d4af37;
  --accent-success: #27ae60;
  --white: #ffffff;
  --text-color: #333333;
  --border-color: #e0e0e0;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-color);
  line-height: 1.6;
  background-color: var(--white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
  background-color: var(--white);
  color: var(--white);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--accent-gold);
  text-decoration: none;
}

.logo-icon {
  font-size: 2rem;
}

.logo-text {
  color: var(--white);
}
.logo-image {
  height: 100px;
}
.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  color: var(--neutral-dark);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

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

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--primary-light);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  gap: 0.4rem;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background: #3a8bc9;
  border-radius: 2px;
  transition: 0.3s ease;
}
/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
  padding: 80px 40px;
  display: flex;
  align-items: center;
  gap: 60px;
  /* min-height: 600px; */
}

.hero-about,
.hero-contact {
  text-align: center;
  justify-content: center;

}

.hero-content {
  flex: 1;
  animation: fadeInUp 0.8s ease;
}

.hero-image {
  flex: 1;
  animation: fadeInRight 0.8s ease;
}

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  font-weight: 300;
  color: var(--accent-gold);
}

.hero-description {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  line-height: 1.8;
  opacity: 0.95;
}

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

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
  border: 2px solid;
  cursor: pointer;
  text-align: center;
}

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

.btn-primary:hover {
  background-color: #c9a636;
  border-color: #c9a636;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: transparent;
  color: var(--white);
  border-color: var(--white);
}

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

.btn-large {
  padding: 16px 40px;
  font-size: 1.2rem;
}

/* ============================================
   SECTIONS
   ============================================ */

.section {
  padding: 80px 20px;
}

.section:nth-child(even) {
  background-color: var(--neutral-light);
}

.section-title {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  text-align: center;
  font-weight: 700;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--neutral-gray);
  text-align: center;
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   COPPER TYPES SECTION
   ============================================ */

.copper-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.copper-card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-top: 4px solid var(--primary-color);
}

.copper-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.copper-card h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  font-size: 1.3rem;
}

.copper-type {
  color: var(--accent-gold);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.copper-description {
  color: var(--neutral-gray);
  font-size: 0.95rem;
}

/* ============================================
   ADVANTAGES SECTION
   ============================================ */

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.advantage-item {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.advantage-item:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
  border-top: 4px solid var(--primary-color);
}

.advantage-number {
  font-size: 3rem;
  color: var(--primary-light);
  font-weight: 700;
  margin-bottom: 1rem;
}

.advantage-item h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.advantage-item p {
  color: var(--neutral-gray);
}

/* ============================================
   PROCESS SECTION
   ============================================ */

.process-wrapper {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-top: 3rem;
}

.process-content {
  flex: 1;
}

.process-image {
  flex: 1;
}

.process-image img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
}

.process-steps {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin: 2rem 0;
}

.step {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  background-color: var(--white);
  border-radius: 8px;
  border-left: 4px solid var(--primary-color);
  transition: var(--transition);
}

.step:hover {
  box-shadow: var(--shadow-lg);
  transform: translateX(10px);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background-color: var(--primary-color);
  color: var(--white);
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.step h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.step p {
  color: var(--neutral-gray);
}

/* ============================================
   PREPARATION SECTION
   ============================================ */

.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.tip-card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.tip-card:hover {
  transform: rotateY(-5deg);
  box-shadow: var(--shadow-lg);
}

.tip-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.tip-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.tip-card p {
  color: var(--neutral-gray);
  font-size: 0.95rem;
}

/* ============================================
   ENVIRONMENTAL SECTION
   ============================================ */

.environmental-wrapper {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-top: 3rem;
}

.environmental-image {
  flex: 1;
}

.environmental-image img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
}

.environmental-content {
  flex: 1;
}

.benefits-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.benefit-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.5rem;
  background-color: var(--white);
  border-radius: 8px;
  transition: var(--transition);
}

.benefit-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateX(10px);
}

.benefit-check {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--accent-success);
  color: var(--white);
  border-radius: 50%;
  font-weight: 700;
  flex-shrink: 0;
}

.benefit-item h4 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.benefit-item p {
  color: var(--neutral-gray);
  font-size: 0.95rem;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  background-color: var(--neutral-dark);
  color: var(--white);
  padding: 60px 20px 20px;
}
.footer-logo-image {
  width: 250px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: var(--accent-gold);
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.footer-section p {
  color: #ccc;
  margin-bottom: 0.5rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: #ccc;
  text-decoration: none;
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--accent-gold);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  margin-top: 1rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  color: #999;
}

/* ============================================
   ABOUT PAGE STYLES
   ============================================ */

.mission-wrapper,
.sustainability-wrapper {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-top: 3rem;
}

.mission-image,
.sustainability-image {
  flex: 1;
}

.mission-image img,
.sustainability-image img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
}

.mission-content,
.sustainability-content {
  flex: 1;
}

.mission-content p,
.sustainability-content p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
  color: var(--text-color);
}

.what-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
  margin-bottom: 2rem;
}

.what-card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.what-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.what-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.what-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.what-card p {
  color: var(--neutral-gray);
}

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

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.why-card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 8px;
  transition: var(--transition);
  box-shadow: var(--shadow);
  border-top: 4px solid var(--primary-color);
}

.why-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.why-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.why-card p {
  color: var(--neutral-gray);
  line-height: 1.7;
}

.sustainability-points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.point {
  background-color: var(--neutral-light);
  padding: 1.5rem;
  border-radius: 8px;
  text-align: center;
  transition: var(--transition);
}

.point:hover {
  transform: scale(1.05);
}

.point-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.point h4 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.point p {
  color: var(--neutral-gray);
  font-size: 0.95rem;
}

.promise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.promise-item {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.promise-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.promise-check {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background-color: var(--accent-success);
  color: var(--white);
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.5rem;
  margin: 0 auto 1rem;
}

.promise-item h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.promise-item p {
  color: var(--neutral-gray);
}

.cta-section h2 {
  font-size: 2.5rem;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 1rem;
}

.cta-section p {
  text-align: center;
  font-size: 1.1rem;
  color: var(--neutral-gray);
  margin-bottom: 2rem;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ============================================
   CONTACT PAGE STYLES
   ============================================ */

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 3rem;
}

.contact-form-wrapper,
.contact-info {
  background-color: var(--white);
  padding: 2.5rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.contact-form-wrapper h2,
.contact-info h2 {
  color: var(--primary-color);
  margin-bottom: 2rem;
  font-size: 1.8rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
  font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(40, 114, 175, 0.1);
}

.form-message {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 5px;
  display: none;
}

.form-message.success {
  background-color: #d4edda;
  color: #155724;
  display: block;
}

.form-message.error {
  background-color: #f8d7da;
  color: #721c24;
  display: block;
}

.contact-info h3 {
  color: var(--primary-color);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.info-block {
  margin-bottom: 2rem;
}

.info-block p {
  margin-bottom: 0.3rem;
  color: var(--text-color);
}

.info-block a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
}

.info-block a:hover {
  text-decoration: underline;
}

.info-text {
  font-size: 0.9rem;
  color: var(--neutral-gray);
}

.services-offered {
  background-color: var(--neutral-light);
  padding: 1.5rem;
  border-radius: 8px;
  margin-top: 2rem;
  border-left: 4px solid var(--primary-color);
}

.services-offered h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.services-list {
  list-style: none;
}

.services-list li {
  padding: 0.5rem 0;
  color: var(--text-color);
}

.why-contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.why-contact-card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.why-contact-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.why-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.why-contact-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.why-contact-card p {
  color: var(--neutral-gray);
}

.final-cta {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
  text-align: center;
  padding: 60px 20px;
}

.final-cta h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.final-cta p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.95;
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.fade-in:nth-child(1) {
  animation-delay: 0.1s;
}

.fade-in:nth-child(2) {
  animation-delay: 0.2s;
}

.fade-in:nth-child(3) {
  animation-delay: 0.3s;
}

.fade-in:nth-child(4) {
  animation-delay: 0.4s;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
  .hero {
    flex-direction: column;
    padding: 60px 20px;
    min-height: auto;
    gap: 30px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1.3rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .hero-buttons {
    justify-content: flex-start;
  }

  .section {
    padding: 60px 20px;
  }

  .section-title {
    font-size: 2rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }
.logo-image {
    width: 300px;
    height: 60px;
  }
  /* .nav-links {
    gap: 1rem;
    font-size: 0.95rem;
  } */

  .process-wrapper,
  .environmental-wrapper,
  .mission-wrapper,
  .sustainability-wrapper {
    flex-direction: column;
    gap: 30px;
  }

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

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 90px;
    left: 0;
    width: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background-color: #ffffff;
  }

  .nav-links.active {
    max-height: 300px;
  }

  .nav-links {
    color: white;
    padding: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-links.active::after {
    display: none;
  }

  .copper-grid,
  .advantages-grid,
  .tips-grid,
  .why-grid,
  .why-contact-grid,
  .what-grid,
  .promise-grid,
  .sustainability-points {
    grid-template-columns: 1fr;
  }

  .process-steps {
    gap: 1rem;
  }

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

  .cta-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

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

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.8rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .copper-card,
  .advantage-item,
  .tip-card,
  .what-card,
  .why-card,
  .why-contact-card {
    padding: 1.5rem;
  }

  .nav-links {
    gap: 0.5rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }
}