:root {
  --bg-0: #0e0f11;
  --bg-1: #14161a;
  --bg-2: #1b1f24;
  --tx-0: #e6e8eb;
  --tx-1: #c6cacc;
  --muted: #7b8a8b;
  --brand: #7fd1b9;

  --accent: #a8c7fa;

  --cursor-visibility: collapse;
  --radius: 18px;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 2px 6px rgba(0, 0, 0, 0.25);
  --glass: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-0: #f5f7fb;
    --bg-1: #ffffff;
    --bg-2: #ffffff;
    --tx-0: #0d1117;
    --tx-1: #222;
    --muted: #566;
    --glass: rgba(0, 0, 0, 0.03);
    --border: rgba(0, 0, 0, 0.08);
    --shadow: 0 8px 28px rgba(15, 16, 18, 0.12),
      0 2px 6px rgba(15, 16, 18, 0.08);
  }
}

html,
body {
  height: 100%;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inconsolata", monospace;
  font-weight: 400;
  color: var(--tx-1);
  background: var(--bg-0);
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 6vmin 3vmin 9vmin;
  position: relative;
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: -20vmax;

  z-index: -1;
  background: radial-gradient(
      60vmax 45vmax at 10% 15%,
      rgba(127, 209, 185, 0.16),
      transparent 60%
    ),
    radial-gradient(
      70vmax 52vmax at 85% 85%,
      rgba(168, 199, 250, 0.16),
      transparent 65%
    ),
    linear-gradient(180deg, var(--bg-2), var(--bg-0));
  background-repeat: no-repeat;
  background-size: 180% 180%, 180% 180%, 100% 100%;
  background-position: 0% 0%, 100% 100%, 50% 50%;
  filter: saturate(115%);
  animation: gradientMove 22s ease-in-out infinite alternate;
}

@keyframes gradientMove {
  0% {
    background-position: 0% 0%, 100% 100%, 50% 50%;
  }
  50% {
    background-position: 40% 20%, 60% 80%, 50% 50%;
  }
  100% {
    background-position: 100% 100%, 0% 0%, 50% 50%;
  }
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
  transition: border-color 150ms ease, color 150ms ease, filter 150ms ease;
}

a:hover {
  border-bottom-color: currentColor;
  filter: brightness(1.05);
}

.wrap {
  width: min(900px, 96vw);
}

.terminal {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px) saturate(120%);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
  overflow: hidden;
}

.term-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.06),
    rgba(255, 255, 255, 0.02)
  );
  border-bottom: 1px solid var(--border);
}

.dots {
  display: inline-flex;
  gap: 8px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: #ff5f56;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.15) inset;
}

.dot.y {
  background: #ffbd2e;
}

.dot.g {
  background: #27c93f;
}

.title {
  margin-left: auto;
  margin-right: auto;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.02em;
}

#content {
  padding: clamp(16px, 3.6vmin, 28px) clamp(18px, 4vmin, 32px);
  font-size: clamp(14px, 2.4vmin, 18px);
  line-height: 1.55;
  min-height: 50vh;
  color: var(--tx-1);
}
#content strong #user {
  color: var(--tx-0);
}
#content #dir {
  color: #5e6968;
}
#content #terminal {
  color: var(--tx-1);
}

.cursor,
#ps1_01:after,
#cd:after,
#ps1_02:after,
#cat:after,
#std_out_01:after,
#ps1_03:after,
#std_out_02:after,
#ps1_04:after {
  visibility: var(--cursor-visibility);
  content: "▌";
  color: var(--accent);
  margin-left: 2px;
  opacity: 0.45;
  animation: blink 700ms step-end infinite;
}
[data-typing="true"]::after {
  visibility: visible;
  opacity: 0.8;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--border), rgba(255, 255, 255, 0.15));
  border-radius: 999px;
}

.navFull {
  position: fixed;
  inset-inline: 0;
  bottom: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--muted);
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.35));
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  pointer-events: none;
}
.navFull .navCredits,
.navFull .hint {
  pointer-events: auto;
}
.hint {
  opacity: 0.85;
}


/* === Music Player (glass pill) === */
.music-player{
  position: fixed;
  left: 16px;
  bottom: 72px; /* acima da barra .navFull */
  z-index: 20;

  display: flex;
  align-items: center;
  gap: 8px;

  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 10px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px) saturate(120%);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
  color: var(--tx-0);
}

.music-player > *{ flex: 0 0 auto; }

.icon-btn{
  all: unset;
  display:inline-flex; align-items:center; justify-content:center;
  width:32px; height:32px; cursor:pointer; border-radius:8px;
  color: var(--tx-0);
}
.icon-btn:hover{ background: rgba(255,255,255,0.06); }
.icon-btn svg{
  display:block; width:18px; height:18px; fill: currentColor; opacity:.92;
  transition: opacity .2s ease, transform .12s ease;
}
.icon-btn:active svg{ transform: scale(.96); }
.icon-btn:hover svg{ opacity:1; }

/* Volume group */
.volume-wrap{
  display:flex; align-items:center; gap:6px;
  padding-left: 4px; margin-left: 2px;
  border-left: 1px dashed var(--border);
}
.vol-icon{ fill: currentColor; opacity:.85; }

.music-player input[type="range"]{
  -webkit-appearance:none; appearance:none;
  width: 92px; height: 4px; background:transparent; margin:0;
  outline:none; align-self:center;
}
.music-player input[type="range"]::-webkit-slider-runnable-track{
  height:4px; background: rgba(255,255,255,.28); border-radius: 2px;
}
.music-player input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance:none; width:12px; height:12px; border-radius:50%;
  background: var(--tx-0); margin-top: -4px; box-shadow: 0 0 0 2px rgba(0,0,0,.08);
}
.music-player input[type="range"]::-moz-range-track{
  height:4px; background: rgba(255,255,255,.28); border-radius:2px;
}
.music-player input[type="range"]::-moz-range-thumb{
  width:12px; height:12px; border-radius:50%; background: var(--tx-0); border:none;
}

/* Light theme friendly */
@media (prefers-color-scheme: light){
  .music-player{ color: var(--tx-1); }
  .music-player input[type="range"]::-webkit-slider-runnable-track{ background: rgba(0,0,0,.2); }
  .music-player input[type="range"]::-moz-range-track{ background: rgba(0,0,0,.2); }
  .music-player input[type="range"]::-webkit-slider-thumb{ background: var(--tx-1); }
  .music-player input[type="range"]::-moz-range-thumb{ background: var(--tx-1); }
}


@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
  body::before {
    background-position: 30% 30%, 70% 70%, 50% 50%;
  }
}