/* ==========================================================
   DESIGN TOKENS
   Ovdje su glavne boje i razmaci — promijeni ih ako želiš
   drugačiju paletu, ali dizajn će raditi i bez ikakvih izmjena.
   ========================================================== */
:root {
  --bg: #06070a;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-strong: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);

  --text-primary: #f2f3f7;
  --text-muted: #9498ab;
  --text-faint: #5c6079;

  --violet: #8b6bff;
  --violet-soft: rgba(139, 107, 255, 0.35);
  --cyan: #34d1e0;
  --green: #35e0a1;
  --green-soft: rgba(53, 224, 161, 0.35);

  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 9px;

  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
}

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

html, body {
  height: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ==========================================================
   AMBIENT BACKGROUND — glow blobovi + fina mreža
   Čisto dekorativno, slobodno mijenjaj boje/opacity.
   ========================================================== */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(130px);
  pointer-events: none;
  z-index: 0;
}

.bg-glow--one {
  width: 580px;
  height: 580px;
  top: -180px;
  left: -140px;
  background: radial-gradient(circle, var(--violet-soft), transparent 70%);
  animation: drift-one 17s ease-in-out infinite;
}

.bg-glow--two {
  width: 620px;
  height: 620px;
  bottom: -220px;
  right: -160px;
  background: radial-gradient(circle, rgba(52, 209, 224, 0.22), transparent 70%);
  animation: drift-two 19s ease-in-out infinite;
}

@keyframes drift-one {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, 30px) scale(1.08); }
}

@keyframes drift-two {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-30px, -25px) scale(1.06); }
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 75% 65% at 50% 30%, black 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 30%, black 20%, transparent 78%);
}

@media (prefers-reduced-motion: reduce) {
  .bg-glow--one,
  .bg-glow--two {
    animation: none;
  }
}

/* ==========================================================
   PAGE LAYOUT
   ========================================================== */
.page {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 0 auto;
  padding: 72px 24px 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

.page-header {
  text-align: center;
  margin-bottom: 56px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.brand-mark {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--green);
  background: rgba(53, 224, 161, 0.1);
  border: 1px solid rgba(53, 224, 161, 0.3);
  padding: 4px 10px;
  border-radius: 8px;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.page-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 460px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ==========================================================
   DECK — kontejner za obje kartice
   ========================================================== */
.deck {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  align-items: stretch;
}

@media (max-width: 820px) {
  .deck {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }
}

/* ==========================================================
   CARD
   ========================================================== */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 32px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--border);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.02) inset,
    0 30px 80px -30px rgba(0, 0, 0, 0.65);
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease;
  animation: card-in 0.6s ease both;
}

.card:nth-child(2) {
  animation-delay: 0.08s;
}

@keyframes card-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.card:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
}

/* Meki glow koji se pojača na hover, iza sadržaja kartice */
.card-glow {
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at 30% 0%, var(--violet-soft), transparent 60%);
  opacity: 0.5;
  pointer-events: none;
  transition: opacity 0.4s ease;
  z-index: 0;
}

.card:hover .card-glow {
  opacity: 0.9;
}

.card-head,
.code-window,
.copy-btn {
  position: relative;
  z-index: 1;
}

.card-head {
  margin-bottom: 18px;
}

.card-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--violet);
  background: rgba(139, 107, 255, 0.12);
  border: 1px solid rgba(139, 107, 255, 0.3);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}

/* Naslov kartice — mijenja se u index.html, stil ostaje isti */
.card-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3vw, 1.7rem);
  letter-spacing: -0.01em;
  background: linear-gradient(180deg, #ffffff 0%, #b9bacb 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ==========================================================
   CODE WINDOW — prostor za sadržaj/tekst/kod
   ========================================================== */
.code-window {
  border-radius: var(--radius-md);
  background: #0a0b10;
  border: 1px solid var(--border);
  overflow: hidden;
  margin-bottom: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 180px;
}

.code-window__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 14px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  opacity: 0.7;
}

.dot--red { background: #ff5f57; }
.dot--yellow { background: #febc2e; }
.dot--green { background: #28c840; }

.code-window__label {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
}

/* Sadržaj koji se kopira — OVDJE se mijenja tekst/kod u index.html */
.code-body {
  flex: 1;
  padding: 18px 16px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.65;
  color: #c9cce0;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-y: auto;
  max-height: 260px;
}

.code-body::-webkit-scrollbar {
  width: 8px;
}

.code-body::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 999px;
}

/* ==========================================================
   COPY BUTTON — veliko dugme, glavni CTA kartice
   ========================================================== */
.copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px 24px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: #06070a;
  background: linear-gradient(135deg, #ffffff, #d9d4ff);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease, background 0.25s ease;
  box-shadow: 0 12px 30px -12px var(--violet-soft);
}

.copy-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
  box-shadow: 0 16px 36px -12px rgba(139, 107, 255, 0.55);
}

.copy-btn:active {
  transform: translateY(0);
}

.copy-btn:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 3px;
}

.copy-btn__icon--check {
  display: none;
}

/* Stanje nakon uspješnog kopiranja */
.copy-btn.is-copied {
  background: linear-gradient(135deg, #baffe0, #6ff0bb);
  box-shadow: 0 16px 36px -12px var(--green-soft);
}

.copy-btn.is-copied .copy-btn__icon--copy {
  display: none;
}

.copy-btn.is-copied .copy-btn__icon--check {
  display: inline-flex;
}

/* ==========================================================
   FOOTER
   ========================================================== */
.page-footer {
  margin-top: 48px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-faint);
}

/* ==========================================================
   TOAST — mala potvrda u donjem dijelu ekrana
   ========================================================== */
.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translate(-50%, 20px);
  padding: 12px 20px;
  border-radius: 999px;
  background: rgba(15, 16, 22, 0.92);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.7), 0 0 24px -6px var(--green-soft);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 10;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ==========================================================
   RESPONSIVE — mobilni uređaji
   ========================================================== */
@media (max-width: 480px) {
  .page {
    padding: 48px 18px 40px;
  }

  .card {
    padding: 24px;
  }

  .code-body {
    font-size: 0.8rem;
  }

  .toast {
    width: calc(100% - 36px);
    text-align: center;
  }
}