/* ============================================
   PolyPower Global - Professional Corporate Site
   ============================================ */

/* CSS Variables */
:root {
  --primary: #0a2540;
  --primary-light: #1a3a5c;
  --accent: #f5a623;
  --accent-hover: #e09000;
  --text: #1a1a2e;
  --text-light: #4a5568;
  --text-muted: #718096;
  --bg: #ffffff;
  --bg-alt: #f7f9fc;
  --bg-dark: #0a2540;
  --border: #e2e8f0;
  --success: #10b981;
  --font-display: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-lg: 16px;
  --transition: all 0.3s ease;
  --max-width: 1200px;
}

/* Reset & Base */
*, *::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: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary);
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-light);
}

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

.section {
  padding: 5rem 0;
}

.section-sm {
  padding: 3rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.125rem;
}

.bg-alt {
  background: var(--bg-alt);
}

.bg-dark {
  background: var(--bg-dark);
  color: #fff;
}

.bg-dark h2, .bg-dark h3, .bg-dark h4 {
  color: #fff;
}

.bg-dark p {
  color: rgba(255,255,255,0.8);
}

/* Grid System */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 992px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-transform: none;
  letter-spacing: 0;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: #fff;
}

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

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

.btn-outline-white {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.5);
}

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

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
}

.logo-img {
  height: 50px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), #f8c058);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--primary);
  font-size: 0.875rem;
}

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

.nav-list {
  display: flex;
  list-style: none;
  gap: 0.25rem;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-light);
  border-radius: var(--radius);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  background: var(--bg-alt);
}

.nav-cta {
  padding: 0.625rem 1.25rem;
  background: var(--accent);
  color: var(--primary);
  font-weight: 600;
  border-radius: var(--radius);
}

.nav-cta:hover {
  background: var(--accent-hover);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}

@media (max-width: 992px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    flex-direction: column;
    padding: 2rem;
    transform: translateX(100%);
    transition: var(--transition);
  }
  
  .nav.active {
    transform: translateX(0);
  }
  
  .nav-list {
    flex-direction: column;
    width: 100%;
  }
  
  .nav-link {
    padding: 1rem;
    font-size: 1.125rem;
  }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(245,166,35,0.1)" stroke-width="0.5"/><circle cx="50" cy="50" r="30" fill="none" stroke="rgba(245,166,35,0.1)" stroke-width="0.5"/><circle cx="50" cy="50" r="20" fill="none" stroke="rgba(245,166,35,0.1)" stroke-width="0.5"/></svg>') center/cover;
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 650px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(255,255,255,0.1);
  border-radius: 50px;
  font-size: 0.875rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
  border: 1px solid rgba(245,166,35,0.3);
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero h1 {
  color: #fff;
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.hero h1 span {
  color: var(--accent);
}

.hero-text {
  font-size: 1.25rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 2rem;
  line-height: 1.8;
}

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

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.hero-stat {
  text-align: left;
}

.hero-stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
  margin-top: 0.5rem;
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 120px 0 80px;
  }
  
  .hero-stats {
    gap: 2rem;
    flex-wrap: wrap;
  }
  
  .hero-stat-value {
    font-size: 2rem;
  }
}

/* ============================================
   FEATURED PROJECT
   ============================================ */
.featured-project {
  position: relative;
  background: var(--bg-alt);
  overflow: hidden;
}

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

.project-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.project-image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.project-image-badge {
  position: absolute;
  top: 1.5rem;
  left: 1.5rem;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius);
}

.project-content h2 {
  margin-bottom: 0.5rem;
}

.project-location {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.project-description {
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

.project-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.spec-item {
  padding: 1.25rem;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.spec-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.spec-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
}

@media (max-width: 992px) {
  .project-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* ============================================
   SERVICES / TECHNOLOGY CARDS
   ============================================ */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.card-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--accent), #f8c058);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

.card h3 {
  margin-bottom: 0.75rem;
}

.card p {
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* Technology Cards with features */
.tech-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.tech-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.tech-card-image {
  height: 200px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}

.tech-card-body {
  padding: 1.5rem;
}

.tech-card h3 {
  margin-bottom: 0.75rem;
}

.tech-card p {
  font-size: 0.9375rem;
  margin-bottom: 1rem;
}

.tech-features {
  list-style: none;
  font-size: 0.875rem;
}

.tech-features li {
  padding: 0.375rem 0;
  color: var(--text-light);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.tech-features li::before {
  content: '✓';
  color: var(--success);
  font-weight: 700;
}

/* ============================================
   STATS BAR
   ============================================ */
.stats-bar {
  background: var(--primary);
  padding: 3rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item {
  color: #fff;
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.8);
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stat-number {
    font-size: 2.25rem;
  }
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-content h2 {
  margin-bottom: 1.5rem;
}

.about-text {
  font-size: 1.0625rem;
  margin-bottom: 1.5rem;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
  color: var(--primary);
}

.about-feature::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

.about-image {
  position: relative;
}

.about-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-image-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--accent);
  color: var(--primary);
  padding: 1.5rem 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  text-align: center;
}

.about-image-badge strong {
  display: block;
  font-size: 2rem;
  line-height: 1;
}

.about-image-badge span {
  font-size: 0.875rem;
  font-weight: 500;
}

@media (max-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .about-image-badge {
    bottom: -10px;
    right: 10px;
  }
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
}

.contact-info h2 {
  margin-bottom: 1rem;
}

.contact-info > p {
  margin-bottom: 2rem;
}

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

.contact-item {
  display: flex;
  gap: 1rem;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-alt);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.25rem;
}

.contact-item h4 {
  margin-bottom: 0.25rem;
}

.contact-item p {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

.contact-form {
  background: var(--bg-alt);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
}

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

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.form-control {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: inherit;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245,166,35,0.1);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

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

@media (max-width: 992px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   NEWS / PRESS SECTION
   ============================================ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.news-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.news-card-image {
  height: 180px;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.news-card-image img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}

.news-card-body {
  padding: 1.5rem;
}

.news-card h4 {
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.news-card p {
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.news-source {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
}

@media (max-width: 992px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   PAGE HEADERS
   ============================================ */
.page-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 160px 0 80px;
  text-align: center;
}

.page-header h1 {
  color: #fff;
  margin-bottom: 1rem;
}

.page-header p {
  color: rgba(255,255,255,0.85);
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
}

.breadcrumb a {
  color: rgba(255,255,255,0.8);
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--primary);
  color: #fff;
  padding-top: 5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand p {
  color: rgba(255,255,255,0.7);
  margin: 1rem 0 1.5rem;
  font-size: 0.9375rem;
}

.footer h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9375rem;
}

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

.footer-contact p {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: rgba(255,255,255,0.7);
  font-size: 0.9375rem;
  margin-bottom: 1rem;
}

.footer-contact span {
  font-size: 1.25rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
}

.footer-bottom a {
  color: rgba(255,255,255,0.6);
  margin-left: 1.5rem;
}

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

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .footer-bottom a {
    margin: 0 0.75rem;
  }
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 5rem 0;
  text-align: center;
}

.cta-section h2 {
  color: #fff;
  margin-bottom: 1rem;
}

.cta-section p {
  color: rgba(255,255,255,0.85);
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}

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

/* ============================================
   UTILITIES
   ============================================ */
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }

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

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }