/* =========================================================
   Roka-Tekk — glass-morphism dark palette & layout
   ========================================================= */
:root {
  --bg-900: #0f1117;
  --bg-800: #161922;
  
  /* Liquid Glass Theme */
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.25);
  --glass-highlight: linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0) 100%);
  --glass-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  
  --primary: #59dce1;
  --text-100: #ffffff;
  --text-300: #d1d5db;
  --hover-bg: rgba(255, 255, 255, 0.12);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg-900);
  color: var(--text-100);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

/* Global Icon/Image Brightness */
img, .icon {
  filter: brightness(1.05) contrast(1.05);
  transition: filter 0.3s ease, transform 0.3s ease;
}

/* ---------- Containers ---------- */
.container {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 1.5rem; /* Increased base padding */
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ---------- Navigation ---------- */
.glass-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15, 17, 23, 0.6); /* Darker base for legibility */
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.02em;
}

.brand a {
  color: var(--text-100);
  text-decoration: none;
  text-shadow: 0 2px 10px rgba(89, 220, 225, 0.3);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  position: relative;
  padding: .5rem 0;
  font-weight: 500;
  color: var(--text-300);
  text-decoration: none;
  white-space: nowrap;
  transition: color .25s, text-shadow .25s;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: var(--primary);
  border-radius: 2px;
  transition: width .25s;
  box-shadow: 0 0 8px var(--primary);
}

.nav-links a:hover {
  color: var(--text-100);
  text-shadow: 0 0 8px rgba(255,255,255,0.4);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--text-100);
}

/* ---------- Scrollbars ---------- */
::-webkit-scrollbar {
  height: 6px;
  width: 6px;
}

::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 3px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

/* =========================================================   HERO (index)
   ========================================================= */
.hero {
  position: relative;
  min-height: 100dvh; /* Mobile friendly viewport height */
  display: flex;
  align-items: center;
  justify-content: center;
  background: url("../img/shop.jpg") center/cover fixed no-repeat;
  overflow: hidden;
  padding-block: 4rem; /* Spacing for mobile */
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .55);
  z-index: 0;
}

.hero-card {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  text-align: center;
  
  /* Liquid Glass Style */
  backdrop-filter: blur(32px) saturate(180%);
  -webkit-backdrop-filter: blur(32px) saturate(180%);
  background: var(--glass-bg);
  background-image: var(--glass-highlight);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  
  border-radius: 1.5rem;
  padding: 3rem 2.5rem;
  max-width: 720px;
  gap: 1.25rem;
}

.hero .container {
  max-width: none;
  width: 100%;
  padding-inline: 0;
  justify-content: center;
}

.brand-line {
  margin: 0 0 .5rem;
  font-size: clamp(2rem, 5vw, 3.5rem); /* Responsive font size */
  line-height: 1.1;
  text-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.motto {
  display: block;
  margin-top: 0.5rem;
  color: var(--primary);
  font-size: clamp(1rem, 2vw, 1.25rem);
  text-shadow: 0 0 12px rgba(89, 220, 225, 0.4);
}

.hero-text {
  color: var(--text-300);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

/* =========================================================   VISION HERO
   ========================================================= */
#vision {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: url("../img/shop.jpg") center/cover fixed no-repeat;
  padding-block: 4rem;
}

#vision::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.60);
  z-index: 0;
}

#vision > * {
  position: relative;
  z-index: 1;
}

.vision {
  margin: 0;
}

.vision-card {
  backdrop-filter: blur(32px) saturate(180%);
  -webkit-backdrop-filter: blur(32px) saturate(180%);
  background: var(--glass-bg);
  background-image: var(--glass-highlight);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  padding: 2.5rem;
  box-shadow: var(--glass-shadow);
}

.vision-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.vision-gallery {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: 200px;
}

.vision-photo-card {
  position: relative;
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  transition: transform .3s, box-shadow .3s;
}

.vision-photo-card.tall {
  grid-row: span 2;
}

.vision-photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.vision-photo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0,0,0,0.5);
  border-color: rgba(255,255,255,0.4);
}

.vision-photo-card:hover img {
  transform: scale(1.08);
  filter: brightness(1.1);
}

/* =========================================================   DIAGRAM PANEL
   ========================================================= */
.diagram-panel {
  background: var(--bg-900);
  padding-block: 6rem;
}

.diagram-layout {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.diagram-img {
  width: 100%;
  max-width: 600px;
  margin-inline: auto;
  display: block;
  border-radius: 20px;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, .5));
  border: 1px solid var(--glass-border);
}

.diagram-copy p {
  margin: 0 0 1.25rem;
  line-height: 1.6;
  font-size: 1.05rem;
}

.diagram-copy .subtitle {
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.9rem;
}

/* =========================================================   LOKAL FEATURE
   ========================================================= */
.lokal {
  margin-block: 6rem;
  display: grid;
  gap: 4rem;
  grid-template-columns:repeat(auto-fit, minmax(320px, 1fr));
  align-items: center;
}

.lokal-img .slideshow {
  position: relative;
  width: 100%;
  aspect-ratio: 3/2;
  border-radius: 1.25rem;
  overflow: hidden;
  box-shadow: var(--glass-shadow);
  border: 1px solid var(--glass-border);
}

@supports not (aspect-ratio: 1) {
  .lokal-img .slideshow::before {
    content: "";
    display: block;
    padding-top: 66.6667%;
  }
}

.slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity .6s ease;
}

.slide.active {
  opacity: 1;
}

.slide-controls {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity .35s ease;
}

.lokal-img .slideshow:hover .slide-controls {
  opacity: 1;
  pointer-events: auto;
}

.slide-btn {
  padding: .6rem 1.1rem;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--text-100);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  background: rgba(0, 0, 0, .45);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  transition: all .25s ease;
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
}

.slide-btn:hover {
  background: rgba(89, 220, 225, 0.2);
  border-color: var(--primary);
}

.section-title {
  margin: 0;
  font-size: clamp(2rem, 3vw, 2.5rem);
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.badge {
  display: inline-block;
  margin-left: .5rem;
  padding: .25rem .75rem;
  border-radius: 1rem;
  background: linear-gradient(135deg, var(--primary), #48b0b5);
  color: #000;
  font-size: .75rem;
  font-weight: 700;
  vertical-align: middle;
  box-shadow: 0 4px 12px rgba(89, 220, 225, 0.4);
}

.subtitle {
  color: var(--text-300);
  margin-top: .5rem;
  font-size: 1.1rem;
}

.feature-list {
  list-style: none;
  margin: 2rem 0 2.5rem;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.feature-list li {
  background: var(--glass-bg);
  background-image: var(--glass-highlight);
  border: 1px solid var(--glass-border);
  padding: 1rem 1.25rem;
  border-radius: 1rem;
  line-height: 1.5;
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-list li:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  border-color: rgba(255,255,255,0.4);
}

/* =========================================================   BREAKPOINTS
   ========================================================= */

/* ---------- Large tablets / small laptops ---------- */
@media (max-width: 1024px) {
  .container {
    padding-inline: 2rem;
  }
  
  .diagram-layout {
    padding-inline: 4rem;
  }
}

/* ---------- Tablets & large phones ---------- */
@media (max-width: 768px) {
  /* Navigation */
  .glass-nav {
    backdrop-filter: blur(20px) saturate(180%);
    padding-inline: 1rem;
  }

  .nav-links {
    gap: 1rem;
    font-size: .95rem;
  }

  .brand {
    font-size: 1.2rem;
  }

  /* Hero */
  .hero {
    height: auto;
    min-height: 100dvh; /* Dynamic viewport height */
    padding-top: 5rem;
  }

  .hero-card {
    max-width: 90%;
    padding: 2.5rem 1.5rem;
  }

  /* Vision */
  .vision-layout {
    grid-template-columns: 1fr;
  }
  
  .vision-gallery {
    margin-top: 2rem;
  }

  /* Diagram */
  .diagram-layout {
    grid-template-columns: 1fr;
    padding-inline: 1.5rem;
    text-align: center;
  }

  .diagram-img {
    margin-bottom: 2rem;
  }

  /* Lokal */
  .lokal {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .feature-list {
    grid-template-columns: 1fr; /* Stack on small */
  }
}

/* ---------- Phones (<600 px) ---------- */
@media (max-width: 600px) {
  .container {
    padding-inline: 1.25rem;
  }

  /* Hero */
  .hero-card {
    padding: 2rem 1.25rem;
    gap: 1rem;
  }
  
  .brand-line {
    font-size: 2.2rem;
  }

  /* Vision */
  #vision {
    padding-block: 3rem;
  }

  .vision-card {
    padding: 1.75rem 1.25rem;
  }

  .vision-gallery {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 150px;
  }

  /* Diagram */
  .diagram-panel {
    padding-block: 4rem;
  }

  /* Feature list items more compact */
  .feature-list li {
    padding: .85rem 1rem;
    font-size: .95rem;
  }
}

/* ---------- Very small screens (<420 px) ---------- */
@media (max-width: 420px) {
  .brand {
    font-size: 1.1rem;
  }
  
  /* Buttons */
  .btn-primary,
  .btn-secondary {
    padding: .75rem 1.25rem;
    font-size: .9rem;
    width: 100%; /* Full width buttons */
    box-sizing: border-box;
    display: block;
    margin-bottom: 0.5rem;
    text-align: center;
  }
  
  .hero-card {
    padding: 1.5rem 1rem;
  }

  .vision-gallery {
    grid-template-columns: 1fr;
    grid-auto-rows: 180px;
  }
}