/* ============================================================
   INDRA OPTIK — Global Stylesheet
   Color Palette:
   - Primary:   #1d6a78 (navbar, section bg, heading)
   - Secondary: #2c2667 (accent dark, gradient, footer)
   - Accent:    #f7941d (CTA buttons, badges, decorative)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@300;400;500;600;700;800&display=swap');

/* ===================== CSS RESET & BASE ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:    #1d6a78;
  --primary-dk: #155563;
  --secondary:  #2c2667;
  --accent:     #f7941d;
  --accent-dk:  #d97c0f;
  --white:      #ffffff;
  --light:      #f4f8fa;
  --gray-100:   #eef2f4;
  --gray-200:   #d8e2e6;
  --gray-400:   #94aab2;
  --gray-600:   #5a7179;
  --gray-800:   #2d3f45;
  --dark:       #0f1f24;
  --text:       #2d3f45;
  --text-light: #5a7179;
  --shadow-sm:  0 2px 8px rgba(29,106,120,0.10);
  --shadow-md:  0 6px 24px rgba(29,106,120,0.15);
  --shadow-lg:  0 16px 48px rgba(29,106,120,0.18);
  --radius:     12px;
  --radius-lg:  20px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-body:  'Manrope', sans-serif;
  --font-head:  'Manrope', sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===================== TYPOGRAPHY ===================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-800);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.2rem; }
p { color: var(--text-light); line-height: 1.8; }
a { text-decoration: none; color: inherit; transition: var(--transition); }

/* ===================== LAYOUT ===================== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 90px 0; }
.section-sm { padding: 60px 0; }

.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { color: var(--primary); margin-bottom: 12px; }
.section-header p { max-width: 580px; margin: 0 auto; font-size: 1.05rem; }
.section-header .accent-line {
  width: 56px; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-dk));
  border-radius: 2px;
  margin: 16px auto 20px;
}

/* ===================== SPLASH SCREEN ===================== */
#splash-screen {
  position: fixed; inset: 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  display: flex; align-items: center; justify-content: center;
  z-index: 10000;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#splash-screen.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.splash-content { text-align: center; color: var(--white); }
.splash-logo-text {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 8px;
  animation: splashFadeIn 0.8s ease forwards;
}
.splash-tagline {
  font-size: 0.9rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  opacity: 0.75;
  margin-bottom: 32px;
  animation: splashFadeIn 0.8s ease 0.2s both;
}
.splash-spinner {
  width: 40px; height: 40px;
  border: 3px solid rgba(255,255,255,0.25);
  border-top-color: var(--accent);
  border-radius: 50%;
  margin: 0 auto;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes splashFadeIn { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }

/* ===================== PROMO POPUP ===================== */
#promo-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 9000;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: var(--transition);
}
#promo-overlay.show { opacity: 1; visibility: visible; }
.promo-modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  max-width: 480px; width: 90%;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transform: scale(0.85) translateY(30px);
  transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
#promo-overlay.show .promo-modal { transform: scale(1) translateY(0); }
.promo-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 28px 32px 20px;
  position: relative;
}
.promo-header h3 {
  color: var(--white); font-family: var(--font-head);
  font-size: 1.6rem; margin-bottom: 4px;
}
.promo-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.promo-close {
  position: absolute; top: 16px; right: 18px;
  background: rgba(255,255,255,0.15);
  border: none; border-radius: 50%;
  width: 32px; height: 32px;
  cursor: pointer; color: var(--white);
  font-size: 1.1rem; display:flex; align-items:center; justify-content:center;
  transition: var(--transition);
}
.promo-close:hover { background: rgba(255,255,255,0.3); }
.promo-body { padding: 24px 32px 28px; text-align: center; }
.promo-body p { color: var(--text); margin-bottom: 16px; font-size: 0.97rem; }
.promo-timer {
  display: flex; gap: 12px; justify-content: center;
  margin-bottom: 20px;
}
.timer-box {
  background: var(--gray-100);
  border-radius: 10px;
  padding: 10px 14px;
  min-width: 60px;
  text-align: center;
}
.timer-box .t-num {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}
.timer-box .t-label {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-top: 2px;
}
.btn-promo-cta {
  display: block; width: 100%;
  background: var(--accent);
  color: var(--white);
  border: none; border-radius: 10px;
  padding: 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}
.btn-promo-cta:hover { background: var(--accent-dk); transform: translateY(-2px); }

/* ===================== NAVBAR ===================== */
#navbar {
  position: fixed; top: 0; left: 0; right: 0;
  background: var(--primary);
  z-index: 1000;
  transition: var(--transition);
  box-shadow: 0 2px 20px rgba(29,106,120,0.25);
}
#navbar.scrolled {
  background: rgba(29,106,120,0.97);
  backdrop-filter: blur(12px);
}
.nav-inner {
  display: flex; align-items: center;
  padding: 0 24px;
  height: 68px;
  max-width: 1240px;
  margin: 0 auto;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
/* Logo image di navbar */
.nav-logo-img {
  height: 42px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  display: block;
  filter: brightness(0) invert(1); /* putihkan logo agar kontras di navbar gelap */
}
/* Jika logo tidak ada, tampilkan fallback icon+text */
.nav-logo-fallback { display: flex; align-items: center; gap: 10px; }

/* Logo image di splash screen */
.splash-logo-img {
  height: 80px;
  width: auto;
  max-width: 260px;
  object-fit: contain;
  margin-bottom: 16px;
  filter: brightness(0) invert(1);
  animation: splashFadeIn 0.8s ease forwards;
}

.nav-logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dk));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
}
.nav-logo-icon i { font-size: 1.3rem; color: var(--white); }
.nav-logo-text { color: var(--white); }
.nav-logo-text .brand { font-family: var(--font-head); font-size: 1.35rem; font-weight: 700; letter-spacing: 1px; line-height: 1; }
.nav-logo-text .tagline { font-size: 0.65rem; opacity: 0.7; letter-spacing: 2px; text-transform: uppercase; }
.nav-menu {
  display: flex; align-items: center;
  list-style: none;
  gap: 4px;
  margin: 0 auto;
}
.nav-menu a {
  color: rgba(255,255,255,0.85);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-menu a:hover, .nav-menu a.active {
  color: var(--white);
  background: rgba(255,255,255,0.12);
}
.nav-cta {
  background: var(--accent) !important;
  color: var(--white) !important;
  padding: 9px 18px !important;
  border-radius: 8px;
  font-weight: 700 !important;
}
.nav-cta:hover { background: var(--accent-dk) !important; transform: translateY(-1px); }
.nav-hamburger {
  display: none;
  flex-direction: column; gap: 5px;
  cursor: pointer; padding: 6px;
  margin-left: auto;
  background: none; border: none;
}
.nav-hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--white); border-radius: 2px;
  transition: var(--transition);
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px;
  border-radius: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.93rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover { background: var(--accent-dk); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(247,148,29,0.35); }

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.5);
}
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: var(--white); }

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

.btn-wa {
  background: #25D366;
  color: var(--white);
}
.btn-wa:hover { background: #1da851; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(37,211,102,0.35); }

/* ===================== FLOATING WHATSAPP ===================== */
#wa-float {
  position: fixed; bottom: 28px; right: 28px;
  z-index: 5000;
}
.wa-float-btn {
  display: flex; align-items: center; justify-content: center;
  width: 58px; height: 58px;
  background: #25D366;
  border-radius: 50%;
  box-shadow: 0 6px 24px rgba(37,211,102,0.45);
  color: var(--white);
  font-size: 1.6rem;
  transition: var(--transition);
  animation: waPulse 2.5s ease-in-out infinite;
}
.wa-float-btn:hover { transform: scale(1.1); box-shadow: 0 8px 32px rgba(37,211,102,0.6); animation: none; }
@keyframes waPulse {
  0%, 100% { box-shadow: 0 6px 24px rgba(37,211,102,0.45); }
  50% { box-shadow: 0 6px 36px rgba(37,211,102,0.7), 0 0 0 10px rgba(37,211,102,0.1); }
}

/* ===================== CARDS ===================== */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

/* ===================== PRODUCT CARD ===================== */
.product-card .product-img {
  position: relative;
  aspect-ratio: 4/3;
  background: var(--gray-100);
  overflow: hidden;
}
.product-card .product-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.product-card:hover .product-img img { transform: scale(1.06); }
.product-card .product-badge {
  position: absolute; top: 12px; left: 12px;
  background: var(--accent);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.5px;
}
.product-card .product-body { padding: 18px 20px 20px; }
.product-card .product-name { font-family: var(--font-head); font-size: 1.1rem; color: var(--gray-800); margin-bottom: 4px; }
.product-card .product-brand { font-size: 0.78rem; color: var(--accent); font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 8px; }
.product-card .product-price { font-size: 1.1rem; font-weight: 800; color: var(--primary); margin-bottom: 14px; }

/* ===================== TESTIMONIAL ===================== */
.stars { color: var(--accent); letter-spacing: 2px; font-size: 0.9rem; }
.testimonial-card { padding: 28px 32px; }
.testimonial-card .t-text { font-style: italic; color: var(--text); margin-bottom: 16px; font-size: 1rem; line-height: 1.7; }
.testimonial-card .t-author { font-weight: 700; color: var(--gray-800); font-size: 0.95rem; }
.testimonial-card .t-role { font-size: 0.8rem; color: var(--gray-400); }

/* ===================== FOOTER ===================== */
footer {
  background: linear-gradient(160deg, var(--secondary) 0%, #1a1545 100%);
  color: rgba(255,255,255,0.75);
  padding: 70px 0 0;
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 56px; }
.footer-brand .brand-name { font-family: var(--font-head); font-size: 1.6rem; color: var(--white); font-weight: 700; letter-spacing: 1px; }
.footer-brand .tagline { font-size: 0.78rem; color: var(--accent); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 16px; }
.footer-brand p { font-size: 0.88rem; line-height: 1.8; max-width: 240px; }
.footer-col h4 { font-family: var(--font-body); font-size: 0.8rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--white); margin-bottom: 20px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 0.88rem; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
.footer-col .contact-item { display: flex; gap: 10px; margin-bottom: 12px; font-size: 0.88rem; align-items: flex-start; }
.footer-col .contact-item i { color: var(--accent); margin-top: 2px; flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 24px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  font-size: 0.82rem;
}
.footer-bottom a { color: var(--accent); }

/* ===================== PAGE HERO ===================== */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 130px 0 70px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.page-hero-content { position: relative; }
.page-hero h1 { color: var(--white); margin-bottom: 12px; }
.page-hero p { color: rgba(255,255,255,0.8); font-size: 1.1rem; max-width: 500px; margin: 0 auto; }
.breadcrumb {
  display: flex; align-items: center; justify-content: center;
  gap: 8px; margin-bottom: 20px;
  font-size: 0.82rem; color: rgba(255,255,255,0.6);
}
.breadcrumb a { color: var(--accent); }
.breadcrumb i { font-size: 0.7rem; }

/* ===================== ANIMATIONS ===================== */
[data-aos] { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
[data-aos].aos-animate { opacity: 1; transform: translateY(0); }
[data-aos="fade-left"] { transform: translateX(-30px); }
[data-aos="fade-left"].aos-animate { transform: translateX(0); }
[data-aos="fade-right"] { transform: translateX(30px); }
[data-aos="fade-right"].aos-animate { transform: translateX(0); }
[data-aos="zoom-in"] { transform: scale(0.9); }
[data-aos="zoom-in"].aos-animate { transform: scale(1); }

/* ===================== ACCORDION ===================== */
.accordion-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.accordion-item.open { box-shadow: var(--shadow-sm); }
.accordion-btn {
  width: 100%;
  background: var(--white);
  border: none;
  padding: 18px 22px;
  text-align: left;
  cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  font-family: var(--font-body);
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--gray-800);
  transition: var(--transition);
}
.accordion-item.open .accordion-btn { color: var(--primary); background: var(--light); }
.accordion-icon {
  width: 28px; height: 28px; flex-shrink: 0;
  background: var(--gray-100);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.accordion-item.open .accordion-icon { background: var(--primary); color: var(--white); transform: rotate(180deg); }
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.accordion-body-inner { padding: 0 22px 18px; color: var(--text-light); font-size: 0.93rem; line-height: 1.8; }

/* ===================== FORM ===================== */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--gray-800); margin-bottom: 6px; }
.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 0.93rem;
  color: var(--text);
  transition: var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(29,106,120,0.1); }
textarea.form-control { resize: vertical; min-height: 120px; }

/* ===================== GRID SYSTEMS ===================== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ===================== TAGS / BADGES ===================== */
.badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.badge-accent { background: rgba(247,148,29,0.12); color: var(--accent); }
.badge-primary { background: rgba(29,106,120,0.1); color: var(--primary); }

/* ===================== STATS ===================== */
.stat-item { text-align: center; }
.stat-num {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}
.stat-label { font-size: 0.85rem; color: var(--gray-600); margin-top: 6px; }

/* ===================== PLACEHOLDER IMAGES ===================== */
.img-placeholder {
  background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 8px;
  color: var(--gray-400);
  font-size: 0.8rem;
  text-align: center;
  padding: 16px;
}
.img-placeholder i { font-size: 2.5rem; opacity: 0.5; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: var(--secondary);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu a { width: 100%; text-align: center; padding: 12px; }
  .nav-hamburger { display: flex; }
  .nav-cta { margin: 8px 0 4px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { text-align: center; flex-direction: column; }
  .section { padding: 64px 0; }
}
@media (max-width: 480px) {
  .page-hero { padding: 110px 0 50px; }
  .promo-body, .promo-header { padding-left: 20px; padding-right: 20px; }
}


/* ===== CTA SECTION ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  text-align: center; padding: 90px 24px;
}
.cta-section h2 { color: var(--white); margin-bottom: 14px; }
.cta-section p { color: rgba(255,255,255,0.8); max-width: 480px; margin: 0 auto 32px; font-size: 1.05rem; }