/* ============================================================
   shtimung — one-pager
   Dark premium tema: topli LED amber + tech cyan na near-black
   ============================================================ */

:root {
  --bg: #0a0c12;
  --bg-soft: #10131c;
  --surface: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.09);
  --text: #eef0f6;
  --text-dim: #9aa1b5;
  --amber: #ffb45c;
  --cyan: #5cd6ff;
  --amber-glow: rgba(255, 180, 92, 0.35);
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.1; }
h1 { font-size: clamp(2.8rem, 7vw, 5.2rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4.5vw, 3.2rem); letter-spacing: -0.01em; margin-bottom: 1rem; }
h1 em, h2 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--amber), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1rem;
}

.lead { font-size: 1.15rem; color: var(--text-dim); max-width: 34em; }

/* ---------- reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible { opacity: 1; transform: none; }

/* ---------- nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 28px;
  background: linear-gradient(rgba(10, 12, 18, 0.85), rgba(10, 12, 18, 0));
  backdrop-filter: blur(2px);
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.wordmark span { color: var(--text-dim); }
.wordmark .dot {
  display: inline-block;
  width: 7px; height: 7px;
  margin-left: 3px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 10px var(--amber);
  animation: dot-pulse 3s ease-in-out infinite;
}
@keyframes dot-pulse {
  0%, 100% { box-shadow: 0 0 6px var(--amber); }
  50% { box-shadow: 0 0 16px var(--amber); }
}

/* ---------- brand: wordmark ↔ logo crossfade na scroll ---------- */
.brand {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 40px;
  min-width: 130px;
  text-decoration: none;
}
.brand .wordmark {
  transition: opacity 0.35s ease, transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: 0.15s; /* na povratku gore čeka da logo ode */
}
.nav.scrolled .brand .wordmark { transition-delay: 0s; }
.logo-mark {
  position: absolute;
  left: -6px;
  top: 50%;
  width: 40px;
  height: 40px;
  opacity: 0;
  transform: translateY(-50%) scale(0.6);
  transition: opacity 0.35s ease, transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
}
.nav.scrolled .logo-mark { transition-delay: 0.15s; /* uđe tek kad slova odu */ }
.nav.scrolled .wordmark {
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
}
.nav.scrolled .logo-mark {
  opacity: 1;
  transform: translateY(-50%) scale(1);
}
.lm-roof {
  fill: none;
  stroke: var(--amber);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.lm-s {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 52px;
  fill: var(--text);
}
/* svjetlo koje uvijek diše */
.lm-halo {
  fill: var(--amber);
  animation: lm-breathe 3s ease-in-out infinite;
}
.lm-dot {
  fill: var(--amber);
  animation: lm-shine 3s ease-in-out infinite;
}
@keyframes lm-breathe {
  0%, 100% { opacity: 0.13; }
  50% { opacity: 0.32; }
}
@keyframes lm-shine {
  0%, 100% { filter: drop-shadow(0 0 1px var(--amber)); }
  50% { filter: drop-shadow(0 0 6px var(--amber)); }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  padding: 13px 26px;
  border-radius: 999px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}
.btn-primary {
  background: linear-gradient(120deg, var(--amber), #ff8a5c);
  color: #17120a;
  box-shadow: 0 4px 30px var(--amber-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 40px var(--amber-glow); }
.btn-ghost {
  color: var(--text);
  border: 1px solid var(--border);
  background: var(--surface);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); }
.btn-small { padding: 9px 20px; font-size: 0.85rem; background: var(--surface); border: 1px solid var(--border); color: var(--text); }
.btn-small:hover { border-color: var(--amber); color: var(--amber); }
.btn-big { padding: 18px 44px; font-size: 1.1rem; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 24px 60px;
}

/* WebGL "sequin wave" sloj — pritajen, s pulsom i fade-om prema dolje */
#hero-shader {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.38;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 35%, black 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 35%, black 20%, transparent 78%);
  animation: shader-breathe 9s ease-in-out infinite;
}
@keyframes shader-breathe {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.48; }
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 45% at 50% 110%, rgba(255, 180, 92, 0.13), transparent 70%),
    radial-gradient(ellipse 45% 35% at 80% -10%, rgba(92, 214, 255, 0.09), transparent 70%),
    radial-gradient(ellipse 40% 30% at 15% 10%, rgba(255, 92, 138, 0.05), transparent 70%);
  pointer-events: none;
}
/* suptilni grid */
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 75%);
}

.hero-content { position: relative; max-width: 780px; }
.hero-content .lead { margin: 1.6rem auto 2.4rem; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* postupno otkrivanje hero elemenata */
.hero .reveal { transition-delay: 0s; }
.hero .reveal:nth-child(2) { transition-delay: 0.1s; }
.hero .reveal:nth-child(3) { transition-delay: 0.2s; }
.hero .reveal:nth-child(4) { transition-delay: 0.3s; }

.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px; height: 40px;
  border: 1.5px solid var(--border);
  border-radius: 14px;
}
.scroll-hint span {
  position: absolute;
  top: 7px; left: 50%;
  width: 4px; height: 8px;
  margin-left: -2px;
  border-radius: 2px;
  background: var(--amber);
  animation: hint 2s ease-in-out infinite;
}
@keyframes hint {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(14px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ============================================================
   SCROLL SCENA — presjek stana
   ============================================================ */
.scene-section {
  position: relative;
  height: 420vh; /* prostor za scroll kroz 4 koraka */
}

.scene-sticky {
  position: sticky;
  top: 0;
  height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(ellipse 50% 40% at 30% 55%, rgba(255, 180, 92, 0.05), transparent 70%),
    var(--bg-soft);
}

.scene-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  width: 100%;
}

.scene-visual svg { width: 100%; height: auto; display: block; }

/* ---------- SVG stilovi ---------- */
.wall { stroke: #3a4157; stroke-width: 3; fill: none; }
.wall.outer { fill: #0d1018; stroke-width: 4; }
.room-label {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.2em;
  fill: #4a5268;
  transition: fill 0.8s ease;
}
.furniture { fill: #1c2230; stroke: #333b52; stroke-width: 1.5; transition: fill 0.8s ease; }
.furniture.light-part { fill: #232a3c; }
.furniture-detail { fill: #262e42; }
.furniture-line { stroke: #333b52; stroke-width: 2.5; }
.window { fill: #131a28; stroke: #333b52; stroke-width: 2; }
.window-bar { stroke: #333b52; stroke-width: 2; }
.door { fill: #262e42; stroke: #3a4157; stroke-width: 1.5; }
.door-knob { fill: #4a5268; }

/* žarulje — default ugašene */
.bulb {
  fill: #2a3145;
  transition: fill 0.7s ease, filter 0.7s ease;
}
.bulb.on {
  fill: var(--amber);
  filter: drop-shadow(0 0 14px var(--amber));
}

/* glow elipse po sobama */
.glow { opacity: 0; transition: opacity 1.1s ease; }
.glow.on { opacity: 1; }

/* LED trake */
.led-strip {
  opacity: 0;
  transition: opacity 0.9s ease;
}
.led-strip.on {
  opacity: 1;
  filter: drop-shadow(0 4px 12px rgba(255, 122, 122, 0.5));
  animation: led-hue 6s linear infinite;
}
@keyframes led-hue {
  from { filter: hue-rotate(0deg) drop-shadow(0 4px 12px rgba(255, 122, 122, 0.5)); }
  to { filter: hue-rotate(360deg) drop-shadow(0 4px 12px rgba(255, 122, 122, 0.5)); }
}

/* TV */
.tv { fill: #0b0e15; stroke: #333b52; stroke-width: 2; }
.tv-screen { fill: #0e1220; transition: fill 0.8s ease; }
#tv-ambient { opacity: 0; transition: opacity 0.9s ease; }
.scene-section.tv-on #tv-ambient { opacity: 1; }
.scene-section.tv-on .tv-screen { fill: #1c2f52; }

/* rolete — spuštaju se scaleY */
.roleta {
  fill: #1a2132;
  stroke: #3a4157;
  stroke-width: 1.5;
  transform-origin: center top;
  transform: scaleY(0);
  transform-box: fill-box;
  transition: transform 1.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.roleta.down { transform: scaleY(1); }

/* senzor pokreta */
.sensor { fill: #2a3145; transition: fill 0.5s ease; }
.sensor-ring { fill: none; stroke: var(--cyan); stroke-width: 1.5; opacity: 0; }
#senzor-hodnik.active .sensor { fill: var(--cyan); }
#senzor-hodnik.active .sensor-ring { animation: ping 2s ease-out infinite; }
#senzor-hodnik.active .sensor-ring.r2 { animation-delay: 0.5s; }
@keyframes ping {
  0% { opacity: 0.8; transform: scale(0.5); transform-origin: center; transform-box: fill-box; }
  100% { opacity: 0; transform: scale(1.4); transform-origin: center; transform-box: fill-box; }
}

/* noćna staza */
.night-strip {
  fill: var(--cyan);
  opacity: 0;
  transition: opacity 1s ease;
}
.night-strip.on {
  opacity: 0.7;
  filter: drop-shadow(0 0 8px var(--cyan));
}

/* termostat */
.thermo-bg { fill: #10141f; }
.thermo-ring {
  fill: none;
  stroke: #2a3145;
  stroke-width: 3;
  transition: stroke 0.8s ease, filter 0.8s ease;
}
.thermo-value {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  fill: #4a5268;
  transition: fill 0.8s ease;
}
.thermo-label { font-family: var(--font-body); font-size: 8px; letter-spacing: 0.2em; fill: #4a5268; }
.scene-section.thermo-on .thermo-ring { stroke: var(--amber); filter: drop-shadow(0 0 6px var(--amber-glow)); }
.scene-section.thermo-on .thermo-value { fill: var(--text); }

/* aktivna soba — labela zasvijetli */
.scene-section[data-step="1"] #room-hodnik .room-label,
.scene-section[data-step="2"] #room-dnevni .room-label,
.scene-section[data-step="3"] #room-kuhinja .room-label,
.scene-section[data-step="4"] #room-spavaca .room-label { fill: var(--amber); }

/* ---------- koraci (tekst desno) ---------- */
.scene-steps { position: relative; padding-left: 28px; }
.scene-steps ol { list-style: none; display: flex; flex-direction: column; gap: 30px; }

.scene-progress {
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 2px;
  background: var(--border);
  border-radius: 2px;
}
.scene-progress-bar {
  width: 100%;
  height: 0%;
  border-radius: 2px;
  background: linear-gradient(var(--amber), var(--cyan));
  box-shadow: 0 0 10px var(--amber-glow);
  transition: height 0.2s linear;
}

.step {
  opacity: 0.3;
  transform: translateX(6px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  cursor: pointer;
}
.step.active { opacity: 1; transform: none; }
.step-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--amber);
}
.step h3 { font-size: 1.35rem; margin: 4px 0 6px; }
.step p { color: var(--text-dim); font-size: 0.95rem; max-width: 30em; }

/* ============================================================
   SEKCIJE
   ============================================================ */
.services, .why, .process { padding: 130px 0; }
.services { background: var(--bg); }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 56px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 32px 26px;
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease,
              opacity 0.7s ease; /* reveal */
}
.card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 180, 92, 0.35);
  background: rgba(255, 180, 92, 0.04);
}
.card-icon {
  font-size: 1.6rem;
  color: var(--amber);
  margin-bottom: 18px;
  text-shadow: 0 0 20px var(--amber-glow);
}
.card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.card p { color: var(--text-dim); font-size: 0.92rem; }

/* stagger za kartice */
.cards .card:nth-child(1) { transition-delay: 0s; }
.cards .card:nth-child(2) { transition-delay: 0.1s; }
.cards .card:nth-child(3) { transition-delay: 0.2s; }
.cards .card:nth-child(4) { transition-delay: 0.3s; }

/* ---------- zašto mi ---------- */
.why { background: var(--bg-soft); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 44px 60px;
  margin-top: 56px;
}
.why-item h3 { font-size: 1.15rem; margin-bottom: 8px; }
.why-item h3::before {
  content: "•";
  color: var(--amber);
  margin-right: 10px;
}
.why-item p { color: var(--text-dim); font-size: 0.95rem; }

/* ---------- proces ---------- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
  margin-top: 48px;
  counter-reset: proc;
}
.process-step {
  position: relative;
  padding: 28px 24px;
  border-left: 2px solid var(--border);
}
.process-step span {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 700;
  background: linear-gradient(180deg, var(--amber), transparent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.process-step h3 { font-size: 1.1rem; margin: 8px 0 6px; }
.process-step p { color: var(--text-dim); font-size: 0.92rem; }

/* ---------- kontakt ---------- */
.contact {
  position: relative;
  padding: 160px 0;
  text-align: center;
  overflow: hidden;
}
.contact-glow {
  position: absolute;
  left: 50%; bottom: -40%;
  width: 900px; height: 500px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse, rgba(255, 180, 92, 0.16), transparent 65%);
  pointer-events: none;
}
.contact .container { position: relative; }
.contact .lead { margin: 1.2rem auto 2.6rem; }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  font-size: 0.85rem;
  color: var(--text-dim);
}
.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer .wordmark { font-size: 1rem; }
.footer-social { display: flex; gap: 16px; }
.footer-social a {
  color: var(--text-dim);
  display: inline-flex;
  transition: color 0.25s ease, transform 0.25s ease;
}
.footer-social a:hover { color: var(--amber); transform: translateY(-2px); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .scene-layout {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 24px 20px;
    align-content: center;
  }
  .scene-visual { max-width: 520px; margin: 0 auto; }
  .scene-steps ol { gap: 0; }
  /* na mobitelu prikazujemo samo aktivni korak */
  .step { display: none; }
  .step.active { display: block; }
  .scene-progress { display: none; }
  .scene-steps { padding-left: 0; text-align: center; min-height: 150px; }
  .step p { margin: 0 auto; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .led-strip.on { animation: none; }
  .scroll-hint span, .wordmark .dot, .lm-halo, .lm-dot { animation: none; }
  #hero-shader { animation: none; }
  * { transition-duration: 0.01ms !important; }
}