/* --- DESIGN SYSTEM FOR SINERGI SENDI (INDONESIA) --- */
:root {
  /* Theme-specific palette: Dark Immersive / Professional */
  --artro-space-bg: #0b0f19;
  --artro-space-surface: #141b2d;
  --artro-space-surface-heavy: #1e2942;
  --artro-neon-tone: #00f2fe;
  --artro-neon-hover: #4facfe;
  --artro-neon-glow: rgba(0, 242, 254, 0.2);
  --artro-space-ink: #f8fafc;
  --artro-space-muted: #94a3b8;
  --artro-danger-red: #ef4444;
  
  /* Fonts */
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Layout Spacing (Normal: 10dvh) */
  --artro-gap-scale: 10dvh;
  
  /* Border Radius (Soft: 16px) */
  --artro-radius: 16px;
  
  /* Shadow Depth (Raised) */
  --artro-shadow-raised: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
  --artro-shadow-neon: 0 0 20px rgba(0, 242, 254, 0.3);
}

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

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

body {
  background-color: var(--artro-space-bg);
  color: var(--artro-space-ink);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--artro-space-ink);
  line-height: 1.2;
}

p {
  color: var(--artro-space-muted);
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.3s ease;
}

/* Scroll Progress Bar */
.artro-progress-strip {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 0%;
  background: linear-gradient(90deg, var(--artro-neon-tone), var(--artro-neon-hover));
  z-index: 10000;
  animation: artro-bar-grow linear;
  animation-timeline: scroll();
}

@keyframes artro-bar-grow {
  to { width: 100%; }
}

/* --- HEADER --- */
.artro-header-bar {
  position: sticky;
  top: 0;
  z-index: 999;
  background-color: var(--artro-space-surface);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: var(--artro-shadow-raised);
}

.artro-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.artro-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.artro-brand-svg {
  width: 32px;
  height: 32px;
  fill: var(--artro-neon-tone);
}

.artro-brand-title {
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--artro-space-ink), var(--artro-neon-tone));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Navigation Links */
.artro-nav-list {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.artro-nav-anchor {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  color: var(--artro-space-muted);
  position: relative;
  padding: 0.5rem 0;
}

.artro-nav-anchor:hover, .artro-nav-anchor.active {
  color: var(--artro-neon-tone);
}

.artro-nav-anchor::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--artro-neon-tone);
  transition: width 0.3s ease;
}

.artro-nav-anchor:hover::after, .artro-nav-anchor.active::after {
  width: 100%;
}

/* Hamburger Menu CSS Only */
.artro-burger-toggle {
  display: none;
}

.artro-burger-icon {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 1001;
}

.artro-burger-bar {
  width: 28px;
  height: 3px;
  background-color: var(--artro-space-ink);
  transition: all 0.3s ease;
  border-radius: 2px;
}

/* --- HERO SECTION --- */
.artro-hero-block {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-image: linear-gradient(to bottom, rgba(11, 15, 25, 0.7), rgba(11, 15, 25, 0.9)), url('img/bg.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: 6rem 1.5rem;
}

.artro-hero-content {
  max-width: 800px;
  z-index: 5;
}

.artro-hero-heading {
  font-size: clamp(2.2rem, 5vw, 4rem);
  margin-bottom: 1.5rem;
}

.artro-hero-heading span {
  color: var(--artro-neon-tone);
}

.artro-hero-desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  margin-bottom: 2.5rem;
  max-width: 650px;
  margin-inline: auto;
}

/* CTA Button */
.artro-cta-pill {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  text-transform: uppercase;
  color: var(--artro-space-bg);
  background: linear-gradient(135deg, var(--artro-neon-tone), var(--artro-neon-hover));
  border-radius: 999px;
  box-shadow: var(--artro-shadow-neon);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
  cursor: pointer;
}

.artro-cta-pill:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 30px var(--artro-neon-tone);
}

/* Floating Stats Bar */
.artro-stats-floating {
  position: relative;
  margin-top: -80px;
  z-index: 10;
  max-width: 1100px;
  margin-inline: auto;
  padding: 0 1.5rem;
}

.artro-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.artro-stat-card {
  background-color: var(--artro-space-surface);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--artro-radius);
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: var(--artro-shadow-raised);
}

.artro-stat-num {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--artro-neon-tone);
  margin-bottom: 0.5rem;
  display: block;
}

.artro-stat-label {
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  color: var(--artro-space-ink);
}

/* Section Wrapper */
.artro-scollop-section {
  padding: var(--artro-gap-scale) 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* --- ZIGZAG CONTENT --- */
.artro-zigzag-row {
  display: flex;
  align-items: center;
  gap: 4rem;
  margin-bottom: 6rem;
}

.artro-zigzag-row:nth-child(even) {
  flex-direction: row-reverse;
}

.artro-zigzag-visual {
  flex: 1;
  position: relative;
  border-radius: var(--artro-radius);
  overflow: hidden;
  height: 400px;
  box-shadow: var(--artro-shadow-raised);
}

.artro-zigzag-row:nth-child(odd) .artro-zigzag-visual {
  clip-path: polygon(0 0, 100% 0, 92% 100%, 0% 100%);
}

.artro-zigzag-row:nth-child(even) .artro-zigzag-visual {
  clip-path: polygon(8% 0, 100% 0, 100% 100%, 0% 100%);
}

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

.artro-zigzag-copy {
  flex: 1;
}

.artro-section-tag {
  color: var(--artro-neon-tone);
  font-weight: bold;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.75rem;
}

.artro-section-title {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.artro-section-paragraph {
  margin-bottom: 1.25rem;
}

/* --- FEATURES GRID --- */
.artro-grid-wrapper {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.artro-grid-item {
  background-color: var(--artro-space-surface);
  border-left: 4px solid var(--artro-neon-tone);
  border-radius: var(--artro-radius);
  padding: 2.5rem;
  box-shadow: var(--artro-shadow-raised);
  transition: all 0.3s ease;
}

.artro-grid-item:hover {
  transform: translateY(-5px);
  border-left-color: var(--artro-neon-hover);
  box-shadow: var(--artro-shadow-neon);
}

.artro-grid-icon {
  width: 48px;
  height: 48px;
  fill: var(--artro-neon-tone);
  margin-bottom: 1.5rem;
}

.artro-grid-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

/* --- TIMELINE (HOW IT WORKS) --- */
.artro-timeline-container {
  position: relative;
  max-width: 900px;
  margin: 4rem auto 0 auto;
}

.artro-timeline-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateX(-50%);
}

.artro-timeline-node {
  position: relative;
  display: flex;
  justify-content: flex-end;
  padding-bottom: 4rem;
}

.artro-timeline-node:nth-child(even) {
  justify-content: flex-start;
}

.artro-timeline-badge {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--artro-space-surface-heavy);
  border: 2px solid var(--artro-neon-tone);
  color: var(--artro-neon-tone);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  z-index: 2;
}

.artro-timeline-box {
  width: 45%;
  background-color: var(--artro-space-surface);
  padding: 2rem;
  border-radius: var(--artro-radius);
  box-shadow: var(--artro-shadow-raised);
}

/* --- CTA STRIP --- */
.artro-cta-strip {
  background-image: linear-gradient(to bottom, rgba(11, 15, 25, 0.85), rgba(11, 15, 25, 0.85)), url('img/bg.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: 6rem 1.5rem;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.artro-cta-container {
  max-width: 700px;
  margin: 0 auto;
}

.artro-cta-title {
  font-size: 2.22rem;
  margin-bottom: 1.5rem;
}

.artro-cta-desc {
  margin-bottom: 2rem;
}

/* --- RESERVATION FORM --- */
.artro-sheet-wrapper {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--artro-space-surface);
  border-radius: var(--artro-radius);
  padding: 3rem;
  box-shadow: var(--artro-shadow-raised);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.artro-form-group {
  margin-bottom: 1.5rem;
  text-align: left;
}

.artro-label {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--artro-space-ink);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.artro-input {
  width: 100%;
  background-color: var(--artro-space-surface-heavy);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 1rem;
  color: var(--artro-space-ink);
  font-family: var(--font-body);
  transition: border-color 0.3s ease;
}

.artro-input:focus {
  outline: none;
  border-color: var(--artro-neon-tone);
}

.artro-checkbox-wrap {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 2rem;
  text-align: left;
}

.artro-checkbox-input {
  margin-top: 0.25rem;
  accent-color: var(--artro-neon-tone);
}

.artro-checkbox-txt {
  font-size: 0.85rem;
  color: var(--artro-space-muted);
}

.artro-checkbox-txt a {
  color: var(--artro-neon-tone);
  text-decoration: underline;
}

.artro-btn-submit {
  width: 100%;
  padding: 1.25rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--artro-space-bg);
  background: linear-gradient(135deg, var(--artro-neon-tone), var(--artro-neon-hover));
  border: none;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: var(--artro-shadow-neon);
  text-transform: uppercase;
  transition: all 0.3s ease;
}

.artro-btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px var(--artro-neon-tone);
}

/* Contact Info cards */
.artro-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 4rem;
}

.artro-info-card {
  background-color: var(--artro-space-surface);
  border-radius: var(--artro-radius);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--artro-shadow-raised);
}

.artro-info-icon {
  width: 36px;
  height: 36px;
  fill: var(--artro-neon-tone);
  margin-bottom: 1rem;
}

.artro-info-title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.artro-info-list {
  list-style: none;
  text-align: left;
  margin-top: 1rem;
  font-size: 0.85rem;
}

.artro-info-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.artro-bullet {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--artro-neon-tone);
}

/* --- FAQ ACCORDION --- */
.artro-faq-container {
  max-width: 800px;
  margin: 5rem auto 0 auto;
}

.artro-faq-item {
  background-color: var(--artro-space-surface);
  border-radius: var(--artro-radius);
  margin-bottom: 1rem;
  box-shadow: var(--artro-shadow-raised);
}

.artro-faq-details summary {
  padding: 1.5rem 2rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  outline: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
}

.artro-faq-details summary::-webkit-details-marker {
  display: none;
}

.artro-faq-details summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--artro-neon-tone);
}

.artro-faq-details[open] summary::after {
  content: '-';
}

.artro-faq-body {
  padding: 0 2rem 1.5rem 2rem;
  color: var(--artro-space-muted);
}

/* --- FOOTER --- */
.artro-footer-bar {
  background-color: var(--artro-space-surface);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 4rem 1.5rem 2rem 1.5rem;
}

.artro-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.artro-footer-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.artro-footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.artro-footer-anchor {
  color: var(--artro-space-muted);
  font-size: 0.9rem;
}

.artro-footer-anchor:hover {
  color: var(--artro-neon-tone);
}

.artro-footer-disclaimer {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
  font-size: 0.8rem;
  color: #64748b;
  text-align: center;
  max-width: 900px;
  margin-inline: auto;
  line-height: 1.8;
}

.artro-footer-copy {
  display: block;
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: #64748b;
}

/* --- COOKIE BANNER --- */
.artro-cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--artro-space-surface-heavy);
  box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.5);
  border-top: 2px solid var(--artro-neon-tone);
  z-index: 99999;
  padding: 1.5rem;
  display: none;
}

.artro-cookie-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.artro-cookie-text {
  font-size: 0.9rem;
  color: var(--artro-space-ink);
  max-width: 800px;
}

.artro-cookie-btn-group {
  display: flex;
  gap: 1rem;
}

.artro-cookie-btn {
  padding: 0.75rem 1.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 999px;
  cursor: pointer;
  border: none;
  text-transform: uppercase;
}

.artro-cookie-btn-accept {
  background: linear-gradient(135deg, var(--artro-neon-tone), var(--artro-neon-hover));
  color: var(--artro-space-bg);
}

.artro-cookie-btn-decline {
  background-color: transparent;
  color: var(--artro-space-ink);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.artro-cookie-btn-decline:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

/* --- SPECIFIC PAGES --- */
.artro-minimal-hero {
  padding: 8rem 1.5rem 4rem 1.5rem;
  text-align: center;
  background-image: linear-gradient(to bottom, rgba(11, 15, 25, 0.85), rgba(11, 15, 25, 0.95)), url('img/bg.webp');
  background-size: cover;
  background-position: center;
}

.artro-minimal-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.artro-document-wrap {
  max-width: 850px;
  margin: 0 auto;
  padding: var(--artro-gap-scale) 1.5rem;
}

.artro-document-section {
  margin-bottom: 3rem;
}

.artro-document-section h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--artro-neon-tone);
}

.artro-document-section p {
  margin-bottom: 1rem;
  line-height: 1.8;
}

/* --- RESPONSIVE ADJUSTMENTS --- */
@media (max-width: 968px) {
  .artro-zigzag-row, .artro-zigzag-row:nth-child(even) {
    flex-direction: column;
    gap: 2rem;
  }
  
  .artro-zigzag-visual {
    width: 100%;
    height: 300px;
    clip-path: none !important;
  }
  
  .artro-stats-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .artro-stats-floating {
    margin-top: -40px;
  }
  
  .artro-grid-wrapper {
    grid-template-columns: 1fr;
  }
  
  .artro-timeline-line {
    left: 20px;
  }
  
  .artro-timeline-node, .artro-timeline-node:nth-child(even) {
    justify-content: flex-start;
    padding-left: 50px;
  }
  
  .artro-timeline-badge {
    left: 20px;
  }
  
  .artro-timeline-box {
    width: 100%;
  }
  
  .artro-info-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  /* Hamburger Menu Implementation */
  .artro-burger-icon {
    display: flex;
  }

  .artro-nav-list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--artro-space-surface);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: none;
    box-shadow: var(--artro-shadow-raised);
  }

  .artro-burger-toggle:checked ~ .artro-nav-list {
    display: flex;
  }

  .artro-burger-toggle:checked ~ .artro-burger-icon .artro-burger-bar:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }

  .artro-burger-toggle:checked ~ .artro-burger-icon .artro-burger-bar:nth-child(2) {
    opacity: 0;
  }

  .artro-burger-toggle:checked ~ .artro-burger-icon .artro-burger-bar:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }
}

@media (max-width: 576px) {
  .artro-sheet-wrapper {
    padding: 1.5rem;
  }
  
  .artro-footer-main {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .artro-footer-links {
    flex-direction: column;
    gap: 1rem;
  }
}