/* ===== Custom Properties ===== */
:root {
  /* Professional color palette - Dark Blue, Black, White */
  --color-primary: #0A1628;      /* Deep navy blue - main brand color */
  --color-secondary: #1E3A5F;    /* Medium dark blue */
  --color-accent: #2C5282;       /* Accent blue for highlights */
  --color-neutral: #F8FAFC;      /* Off-white background */
  --color-dark: #0D0D0D;         /* Pure black for text */
  --color-white: #FFFFFF;        /* White */
  --color-gray: #4A5568;         /* Neutral gray for body text */
  --color-light-gray: #E2E8F0;   /* Light gray for borders */
  
  /* Status colors */
  --color-success: #22C55E;      /* Green for success */
  --color-warning: #F59E0B;      /* Amber for warnings */
  --color-error: #EF4444;        /* Red for errors */
  
  /* Professional sans-serif font - Roboto (industrial feel) */
  --font-heading: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', 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 8px 24px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.15);
  
  --transition-fast: 200ms ease;
  --transition-base: 350ms ease;
  --transition-slow: 500ms ease;
}

/* ===== Base Styles ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  background-color: var(--color-white);
  line-height: 1.7;
  overflow-x: hidden;
  font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

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

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

/* ===== Button Styles ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem 2.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-base);
  border: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--color-secondary);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  background: var(--color-white);
  color: var(--color-dark);
}

.btn-whatsapp {
  background: #25D366;
  color: var(--color-white);
  padding: 1.125rem 3rem;
  font-size: 1.125rem;
  box-shadow: var(--shadow-lg);
}

.btn-whatsapp:hover {
  background: #1da851;
  box-shadow: var(--shadow-xl);
}

/* ===== Hero Section ===== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(10, 22, 40, 0.95), rgba(10, 22, 40, 0.7));
}

.hero-content {
  position: relative;
  z-index: 1;
  color: var(--color-white);
  max-width: 800px;
  padding: 2rem;
}

.hero-content-left {
  text-align: left;
  margin-left: 8%;
}

@media (max-width: 768px) {
  .hero-content-left {
    margin-left: 0;
  }
}

.hero-title {
  font-size: 5rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  text-transform: uppercase;
}

.hero-description {
  font-size: 1.25rem; /* in px = 20px */
  opacity: 0.9;
  margin-bottom: 2.5rem;
  line-height: 1.8;
  max-width: 650px;
}

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

.hero-buttons .btn-primary {
  background: var(--color-white);
  color: var(--color-primary);
  font-weight: 600;
}

.hero-buttons .btn-primary:hover {
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-primary);
}

/* ===== Mission Statement Section ===== */
.mission-section {
  background: var(--color-primary);
  padding: 5rem 2rem;
}

.mission-text {
  color: var(--color-white);
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0.01em;
}

/* ===== Section Styles ===== */
.section {
  padding: 6rem 1.5rem;
}

.section-title {
  font-size: 2.75rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
  text-align: center;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-gray);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 4rem;
  line-height: 1.8;
}

/* ===== Grid Photo Styles ===== */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  width: 100%;
  max-width: 100%;
}

.photo-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

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

.photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.photo-item:hover img {
  transform: scale(1.05);
}

.photo-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 54, 93, 0.9), transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
  opacity: 1;
  display: none;
}

.photo-label {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.125rem;
}

/* ===== Image Slider Container ===== */
.image-slider-container {
  position: relative;
  padding: 0 60px;
}

.image-slider-container .swiper-button-prev,
.image-slider-container .swiper-button-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  border-radius: 50%;
  color: var(--color-white);
  z-index: 10;
}

.image-slider-container .swiper-button-prev {
  left: 0;
}

.image-slider-container .swiper-button-next {
  right: 0;
}

.image-slider-container .swiper-button-prev::after,
.image-slider-container .swiper-button-next::after {
  font-size: 1rem;
  font-weight: 700;
}

.image-slider-container .swiper-button-prev:hover,
.image-slider-container .swiper-button-next:hover {
  background: var(--color-secondary);
}

.image-slider-pagination.swiper-pagination {
  position: relative;
  bottom: auto;
  margin-top: 1.5rem;
}

.image-slider-pagination .swiper-pagination-bullet {
  background: var(--color-primary);
  opacity: 0.3;
  width: 10px;
  height: 10px;
}

.image-slider-pagination .swiper-pagination-bullet-active {
  background: var(--color-primary);
  opacity: 1;
}

/* ===== Galeri Section ===== */
.galeri-section {
  padding: 0;
}

.photo-grid-fullwidth {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.photo-grid-fullwidth .photo-item {
  aspect-ratio: 4/3;
}

.photo-grid-fullwidth .photo-overlay {
  background: linear-gradient(to top, rgba(10, 22, 40, 0.85), transparent 50%);
}

/* ===== Tentang Section ===== */
.tentang-section {
  position: relative;
  padding: 8rem 2rem;
  background: var(--color-primary);
  overflow: hidden;
}

.tentang-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(44, 82, 130, 0.3) 0%, transparent 70%);
  pointer-events: none;
}

.tentang-overlay {
  display: none;
}

.tentang-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  color: var(--color-white);
}

.tentang-badge {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.tentang-title {
  font-size: 2.75rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.tentang-text {
  font-size: 1.25rem;
  line-height: 1.8;
  opacity: 0.9;
  margin-bottom: 3rem;
}

.tentang-stats {
  display: flex;
  justify-content: center;
  gap: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

@media (max-width: 768px) {
  .tentang-stats {
    flex-direction: column;
    gap: 2rem;
  }
}

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

.stat-number {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  display: block;
  font-size: 0.875rem;
  opacity: 0.7;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== Card Styles ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  width: 100%;
  max-width: 100%;
}

.card {
  background: var(--color-white);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  border: 1px solid var(--color-light-gray);
  border-top: 4px solid var(--color-primary);
}

.card:hover {
  box-shadow: var(--shadow-xl);
}

.card-icon {
  width: 4rem;
  height: 4rem;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.card-icon svg {
  width: 2rem;
  height: 2rem;
  fill: var(--color-white);
}

.card-title {
  font-size: 1.375rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.card-description {
  color: var(--color-gray);
  font-size: 1rem;
  line-height: 1.7;
}

/* ===== Two Column Section ===== */
.two-col-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
  min-height: 100vh;
}

.two-col-image {
  position: relative;
}

.two-col-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.two-col-content {
  padding: 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  text-align: left;
  background: var(--color-primary);
}

.two-col-content h2 {
  font-size: 2.5rem;
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.two-col-content p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2rem;
  font-size: 1.125rem;
  line-height: 1.8;
}

.two-col-content ul {
  color: rgba(255, 255, 255, 0.9);
}

.two-col-content .btn-primary {
  background: var(--color-white);
  color: var(--color-primary);
}

.two-col-content .btn-primary:hover {
  background: rgba(255, 255, 255, 0.9);
}

/* ===== Testimonial Styles ===== */
.testimonial-slider-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 60px;
}

.testimonial-card {
  background: var(--color-white);
  padding: 3rem;
  box-shadow: var(--shadow-md);
  text-align: center;
  border: 1px solid var(--color-light-gray);
  border-radius: 8px;
}

.testimonial-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-light-gray);
  margin: 0 auto 1.5rem;
}

.testimonial-text {
  font-size: 1.125rem;
  color: var(--color-dark);
  margin-bottom: 1.5rem;
  font-style: italic;
  line-height: 1.8;
  font-family: var(--font-heading);
}

.testimonial-name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
}

.testimonial-slider-container .swiper-button-prev,
.testimonial-slider-container .swiper-button-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  border-radius: 50%;
  color: var(--color-white);
  z-index: 10;
}

.testimonial-slider-container .swiper-button-prev {
  left: 0;
}

.testimonial-slider-container .swiper-button-next {
  right: 0;
}

.testimonial-slider-container .swiper-button-prev::after,
.testimonial-slider-container .swiper-button-next::after {
  font-size: 1rem;
  font-weight: 700;
}

.testimonial-slider-container .swiper-button-prev:hover,
.testimonial-slider-container .swiper-button-next:hover {
  background: var(--color-secondary);
}

.testimonial-pagination .swiper-pagination-bullet {
  background: var(--color-primary);
}

.testimonial-pagination .swiper-pagination-bullet-active {
  background: var(--color-primary);
}

/* ===== Contact Section ===== */
.contact-section {
  background: var(--color-primary);
  color: var(--color-white);
  text-align: center;
}

.contact-info {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 3rem;
  margin-bottom: 3rem;
}

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

.contact-icon {
  width: 3rem;
  height: 3rem;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== Footer ===== */
.footer {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 2.5rem;
  text-align: center;
}

.footer p {
  opacity: 0.7;
  font-size: 0.9rem;
}

/* ===== Divider ===== */
.section-divider {
  width: 80px;
  height: 3px;
  background: var(--color-primary);
  margin: 0 auto 2rem;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .photo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .two-col-section {
    grid-template-columns: 1fr;
  }
  
  .two-col-image {
    min-height: 400px;
  }
  
  .hero-title {
    font-size: 2.75rem;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 4rem 1rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .photo-grid {
    grid-template-columns: 1fr;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
  
  .quote-text {
    font-size: 1.5rem;
  }
  
  .contact-info {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .hero-title {
    font-size: 2.25rem;
  }
  
  .hero-description {
    font-size: 1.1rem;
  }
  
  .two-col-content {
    padding: 2.5rem;
  }
  
  /* Hide slider navigation on mobile */
  .image-slider-container .swiper-button-prev,
  .image-slider-container .swiper-button-next,
  .testimonial-slider-container .swiper-button-prev,
  .testimonial-slider-container .swiper-button-next {
    display: none;
  }
  
  /* Remove side padding when nav is hidden */
  .image-slider-container,
  .testimonial-slider-container {
    padding: 0;
  }
  
  /* Adjust testimonial card for mobile */
  .testimonial-card {
    padding: 2rem 1.5rem;
  }
  
  .testimonial-text {
    font-size: 1rem;
  }
  
  .testimonial-avatar {
    width: 60px;
    height: 60px;
  }
  
  /* Tentang section responsive */
  .tentang-title {
    font-size: 2rem;
  }
  
  .tentang-text {
    font-size: 1rem;
  }
}