/* TaskPack 홈페이지 — 게임 인벤토리를 닮은 책상. 색은 앱 아이콘(청록 가방 + 가죽 구두)에서 */
:root {
  --bg: #F4EFE6;
  --grid: rgba(28, 26, 23, 0.055);
  --ink: #1C1A17;
  --muted: #6B645B;
  --card: #FFFDF9;
  --line: #E3DACB;
  --teal: #0F9A87;
  --teal-ink: #FFFFFF;
  --leather: #B5541A;
  --shadow: 0 1px 0 rgba(28, 26, 23, .04), 0 12px 32px -12px rgba(60, 40, 20, .22);
  --radius: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111315;
    --grid: rgba(242, 239, 234, 0.045);
    --ink: #F2EFEA;
    --muted: #A39E96;
    --card: #1A1D20;
    --line: #2B2F34;
    --teal: #1CC2A6;
    --teal-ink: #062B25;
    --leather: #E3844A;
    --shadow: 0 1px 0 rgba(255, 255, 255, .03), 0 16px 40px -16px rgba(0, 0, 0, .7);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Pretendard Variable", Pretendard, "Malgun Gothic", sans-serif;
  color: var(--ink);
  background-color: var(--bg);
  /* 가방 칸을 닮은 옅은 격자 */
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 44px 44px;
  background-position: -1px -1px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
}
a { color: inherit; }
img { display: block; }

/* ───────── 머리글 ───────── */
.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1160px; margin: 0 auto; padding: 16px 24px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; font-size: 19px; letter-spacing: -.02em; }
.top nav { display: flex; gap: 22px; font-size: 15px; }
.top nav a { text-decoration: none; color: var(--muted); font-weight: 500; }
.top nav a:hover { color: var(--ink); }

/* ───────── 첫 화면 ───────── */
.hero {
  max-width: 1160px; margin: 0 auto; padding: 56px 24px 72px;
  display: grid; grid-template-columns: 1fr 1.05fr; gap: 56px; align-items: center;
}
.eyebrow {
  display: inline-block; margin: 0 0 18px; padding: 5px 12px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--card);
  font-size: 13px; font-weight: 600; color: var(--muted);
}
h1 {
  margin: 0; font-size: clamp(44px, 6.4vw, 80px); line-height: 1.08;
  font-weight: 900; letter-spacing: -.045em;
}
.mark {
  color: var(--teal);
  background: linear-gradient(transparent 68%, color-mix(in srgb, var(--leather) 28%, transparent) 0);
  padding: 0 .04em;
}
.lead { margin: 24px 0 32px; font-size: 18px; color: var(--muted); font-weight: 450; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; border-radius: 12px; text-decoration: none;
  font-weight: 700; font-size: 16px; transition: transform .15s ease, box-shadow .15s ease, background .15s;
}
.btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.btn.primary { background: var(--teal); color: var(--teal-ink); box-shadow: 0 10px 24px -10px var(--teal); }
.btn.primary:hover { transform: translateY(-2px); box-shadow: 0 14px 28px -10px var(--teal); }
.btn.ghost { border: 1.5px solid var(--line); background: var(--card); }
.btn.ghost:hover { border-color: var(--muted); }
.meta { margin: 14px 0 0; font-size: 13.5px; color: var(--muted); }
.meta.lite { margin-top: 4px; }
.meta.lite a { color: var(--teal); font-weight: 600; text-underline-offset: 3px; }

/* 등장 애니메이션 (차례로) */
.reveal { opacity: 0; transform: translateY(14px); animation: rise .7s cubic-bezier(.2, .7, .2, 1) forwards; }
.hero-copy .reveal:nth-child(1) { animation-delay: .05s; }
.hero-copy .reveal:nth-child(2) { animation-delay: .12s; }
.hero-copy .reveal:nth-child(3) { animation-delay: .2s; }
.hero-copy .reveal:nth-child(4) { animation-delay: .28s; }
.hero-copy .reveal:nth-child(5) { animation-delay: .34s; }
.demo.reveal { animation-delay: .25s; }
@keyframes rise { to { opacity: 1; transform: none; } }

/* ───────── 미리보기: 가짜 바탕화면 ───────── */
.demo { position: relative; }
.sticker {
  position: absolute; z-index: 3; top: -22px; right: -8px;
  padding: 10px 14px; transform: rotate(6deg);
  background: var(--leather); color: #fff; border-radius: 10px;
  font-weight: 800; font-size: 14px; line-height: 1.3; letter-spacing: -.02em;
  box-shadow: 0 10px 20px -8px rgba(0, 0, 0, .35);
}
.desk {
  position: relative; height: 470px; border-radius: 20px; overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow);
  background:
    radial-gradient(120% 90% at 10% 0%, color-mix(in srgb, var(--teal) 55%, transparent), transparent 60%),
    radial-gradient(90% 80% at 100% 100%, color-mix(in srgb, var(--leather) 45%, transparent), transparent 60%),
    linear-gradient(160deg, #26343A, #1B2226);
}
.demo-hint { margin: 12px 0 0; text-align: center; font-size: 13px; color: var(--muted); }

.taskbar {
  position: absolute; left: 0; right: 0; bottom: 0; height: 52px;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  background: rgba(22, 24, 27, .78); backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255, 255, 255, .08);
}
.tb-item {
  width: 40px; height: 40px; border-radius: 8px; display: grid; place-items: center;
  border: 0; padding: 0; background: transparent; position: relative;
}
.tb-item.plain::before { content: ""; width: 22px; height: 22px; border-radius: 6px; background: rgba(255, 255, 255, .16); }
.tb-item.start { grid-template-columns: repeat(2, 9px); gap: 2px; place-content: center; }
.tb-item.start i { width: 9px; height: 9px; border-radius: 2px; background: #5BA8F5; }
.tb-item.search svg { width: 20px; height: 20px; fill: none; stroke: rgba(255, 255, 255, .8); stroke-width: 2; }
.tb-item.drawer { cursor: pointer; transition: background .15s; }
.tb-item.drawer img { width: 28px; height: 28px; transition: transform .15s; }
.tb-item.drawer:hover { background: rgba(255, 255, 255, .1); }
.tb-item.drawer:active img { transform: scale(.88); }
/* 실행 중 표시 (작업표시줄 아이콘 아래 줄) */
.tb-item.drawer::after {
  content: ""; position: absolute; bottom: 2px; left: 50%; width: 6px; height: 3px; margin-left: -3px;
  border-radius: 2px; background: rgba(255, 255, 255, .5); transition: width .2s, margin .2s, background .2s;
}
.tb-item.drawer.running::after { width: 16px; margin-left: -8px; background: #5BA8F5; }
/* 처음에 눌러 보라고 살짝 두근 */
.tb-item.drawer.nudge { animation: nudge 1.6s ease-in-out infinite; }
@keyframes nudge { 0%, 100% { box-shadow: 0 0 0 0 rgba(28, 194, 166, .0); } 50% { box-shadow: 0 0 0 6px rgba(28, 194, 166, .35); } }

/* ───────── 미리보기: 가방 창 (앱과 같은 모양·속도) ───────── */
.bag {
  --bag-bg: #3E63DD; --bag-ink: #fff; --bag-slot: rgba(255, 255, 255, .09); --bag-slot-hover: rgba(255, 255, 255, .19);
  --bag-accent: #9DB2F0; --bag-accent-ink: #1A1A1A; --bag-sel: rgba(255, 255, 255, .22);
  /* 가방 아이콘(작업표시줄 가운데에서 오른쪽으로 46px) 바로 위에 가운데 맞춤 */
  position: absolute; bottom: 62px; left: 50%; width: 300px; margin-left: -104px;
  padding: 8px 8px 10px; border-radius: 10px;
  background: var(--bag-bg); color: var(--bag-ink);
  box-shadow: 0 18px 40px -12px rgba(0, 0, 0, .6), 0 0 0 1px rgba(255, 255, 255, .12);
  opacity: 0; transform: translateY(12px); pointer-events: none;
  transition: opacity .12s ease-in, transform .12s ease-in, background .25s, color .25s;
}
.bag.open { opacity: 1; transform: none; pointer-events: auto; transition: opacity .16s ease-out, transform .16s ease-out, background .25s, color .25s; }
.bag[data-theme="dark"]  { --bag-bg: #262626; --bag-ink: #F0F0F0; --bag-slot: rgba(255, 255, 255, .086); --bag-slot-hover: rgba(255, 255, 255, .19); --bag-accent: #12A594; --bag-accent-ink: #fff; --bag-sel: rgba(255, 255, 255, .22); }
.bag[data-theme="light"] { --bag-bg: #F7F7F7; --bag-ink: #1A1A1A; --bag-slot: rgba(0, 0, 0, .055); --bag-slot-hover: rgba(0, 0, 0, .12); --bag-accent: #12A594; --bag-accent-ink: #fff; --bag-sel: rgba(0, 0, 0, .13); }

.bag-head { display: flex; align-items: center; gap: 4px; margin-bottom: 8px; }
.pin {
  width: 28px; height: 26px; flex: none; border: 0; border-radius: 6px; cursor: pointer;
  display: grid; place-items: center; background: transparent; color: inherit; opacity: .7;
}
.pin svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linejoin: round; }
.pin:hover { background: var(--bag-slot-hover); opacity: 1; }
.pin[aria-pressed="true"] { background: var(--bag-accent); color: var(--bag-accent-ink); opacity: 1; }
.pin[aria-pressed="true"] svg { fill: currentColor; }
.tabs { display: flex; align-items: center; gap: 2px; overflow: hidden; }
.tab {
  border: 0; background: transparent; color: inherit; font: inherit; font-size: 13px; cursor: pointer;
  padding: 4px 9px; border-radius: 6px; white-space: nowrap;
}
.tab:hover { background: var(--bag-slot); }
.tab.active { background: var(--bag-sel); font-weight: 600; }
.tab.add { opacity: .6; cursor: default; font-size: 12.5px; }
.tab.add:hover { background: transparent; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; }
.slot {
  aspect-ratio: 80 / 84; border: 0; border-radius: 7px; background: var(--bag-slot); color: inherit;
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start; gap: 4px;
  padding-top: 12px; font: inherit; font-size: 12px; cursor: pointer; transition: background .12s;
}
.slot:hover { background: var(--bag-slot-hover); }
.slot:empty, .slot.empty { cursor: default; }
.slot .ico { width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center; font-size: 19px; box-shadow: inset 0 -2px 0 rgba(0, 0, 0, .12); }
.slot.pop { animation: pop .28s ease; }
@keyframes pop { 40% { transform: scale(.9); } }

.toast {
  position: absolute; left: 50%; top: 22px; margin: 0; padding: 8px 14px; border-radius: 999px;
  background: rgba(255, 255, 255, .92); color: #1C1A17; font-size: 13.5px; font-weight: 600;
  transform: translate(-50%, -8px); opacity: 0; transition: opacity .2s, transform .2s; pointer-events: none;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ───────── 본문 구역 ───────── */
.section { max-width: 1160px; margin: 0 auto; padding: 72px 24px; }
h2 { margin: 0; font-size: clamp(28px, 3.6vw, 42px); font-weight: 850; letter-spacing: -.035em; line-height: 1.2; }
.section-lead { margin: 12px 0 36px; color: var(--muted); font-size: 17px; }

/* 기능: 가방 칸 모양 카드 */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.slot-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 22px 20px; box-shadow: var(--shadow);
  transition: transform .2s ease, border-color .2s;
}
.slot-card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--teal) 45%, var(--line)); }
/* 3열일 때 마지막 카드가 혼자 한 줄에 남으면 가로로 펼친다 */
@media (min-width: 901px) {
  .features .slot-card:last-child:nth-child(3n+1) { grid-column: 1 / -1; }
}
.slot-icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 14px;
  background: color-mix(in srgb, var(--teal) 14%, transparent); color: var(--teal);
}
.slot-card:nth-child(even) .slot-icon { background: color-mix(in srgb, var(--leather) 14%, transparent); color: var(--leather); }
.slot-icon svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.slot-card h3 { margin: 0 0 6px; font-size: 18px; font-weight: 750; letter-spacing: -.02em; }
.slot-card p { margin: 0; color: var(--muted); font-size: 15px; }

/* 설치 단계 */
.steps { list-style: none; padding: 0; margin: 32px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; counter-reset: none; }
.steps li { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.step-no {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  background: var(--ink); color: var(--bg); font-weight: 800; margin-bottom: 14px;
}
.steps h3 { margin: 0 0 6px; font-size: 18px; font-weight: 750; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }
.steps a { color: var(--teal); font-weight: 600; text-underline-offset: 3px; }
/* .NET 10 런타임 안내 카드 */
.runtime {
  margin: 18px 0 0; padding: 22px 24px; border-radius: var(--radius);
  background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow);
}
.runtime-head { display: flex; gap: 16px; align-items: flex-start; }
.runtime-badge {
  flex: none; display: grid; place-items: center; width: 54px; height: 54px; border-radius: 14px;
  background: #512BD4; color: #fff; font-weight: 800; font-size: 14px; letter-spacing: -.02em;
}
.runtime h3 { margin: 0 0 4px; font-size: 18px; font-weight: 750; }
.runtime p { margin: 0; color: var(--muted); font-size: 15px; }
.runtime-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 14px 70px; }
.btn.small { padding: 10px 16px; font-size: 14.5px; border-radius: 10px; }
.runtime-guide { margin-left: 70px !important; font-size: 14.5px !important; }
.runtime-guide b { color: var(--ink); }
@media (max-width: 600px) {
  .runtime-actions, .runtime-guide { margin-left: 0 !important; }
}

.notice {
  margin: 18px 0 0; padding: 14px 18px; border-radius: 12px; font-size: 14.5px;
  background: color-mix(in srgb, var(--leather) 10%, transparent); border: 1px dashed color-mix(in srgb, var(--leather) 45%, transparent);
}

/* 질문 */
.faq { margin-top: 28px; display: grid; gap: 10px; max-width: 820px; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 4px 20px; }
.faq summary { cursor: pointer; padding: 14px 0; font-weight: 700; font-size: 16.5px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--teal); font-size: 22px; line-height: 1; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { margin: 0 0 16px; color: var(--muted); }
.faq code { font-size: .92em; padding: 1px 6px; border-radius: 6px; background: color-mix(in srgb, var(--ink) 8%, transparent); }

/* 바닥글 */
.foot {
  max-width: 1160px; margin: 0 auto; padding: 36px 24px 56px;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px;
  border-top: 1px solid var(--line); color: var(--muted); font-size: 14px;
}
.foot p { margin: 0; }
.foot a { color: var(--muted); }
.foot a:hover { color: var(--ink); }

/* ───────── 좁은 화면 ───────── */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 48px; padding-top: 32px; }
  .features, .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .top { padding: 12px 16px; }
  .top nav { gap: 14px; font-size: 14px; }
  .top nav a:nth-child(3) { display: none; }
  .hero, .section { padding-left: 16px; padding-right: 16px; }
  .section { padding-top: 56px; padding-bottom: 56px; }
  .features, .steps { grid-template-columns: 1fr; }
  .desk { height: 420px; }
  .bag { width: 250px; margin-left: -79px; }
  .sticker { right: 4px; font-size: 12.5px; }
  .foot { padding-left: 16px; padding-right: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}