/* ============================================================
   Image Converter - style.css
   Friendly, rounded, pastel design
   ============================================================ */
:root {
  --c-primary: #7c5cff;
  --c-primary-dark: #6849e8;
  --c-secondary: #ff6fa5;
  --c-accent: #37c8a3;
  --c-bg: #fff9f2;
  --c-bg-2: #fff4e9;
  --c-surface: #ffffff;
  --c-ink: #2b2633;
  --c-ink-2: #5d566c;
  --c-ink-3: #8b8399;
  --c-line: #f0e4d8;
  --c-soft: #f6ecff;
  --c-ok: #2fae72;
  --c-warn: #f0a13c;
  --c-err: #e2574c;
  --radius: 18px;
  --radius-lg: 26px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(124, 92, 255, .08);
  --shadow-md: 0 10px 24px rgba(124, 92, 255, .12);
  --shadow-lg: 0 22px 50px rgba(124, 92, 255, .18);
  --font: "Quicksand", "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--c-ink);
  background:
    radial-gradient(1200px 420px at 88% -8%, #ffe3f1 0%, transparent 60%),
    radial-gradient(960px 380px at 4% 2%, #e6e0ff 0%, transparent 62%),
    var(--c-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

img { max-width: 100%; }

button, input, select { font: inherit; color: inherit; }

button { cursor: pointer; }

a { text-decoration: none; color: inherit; }

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.hidden { display: none !important; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: var(--radius-pill);
  padding: 12px 22px;
  font-weight: 700;
  font-size: .95rem;
  background: var(--c-surface);
  color: var(--c-ink);
  box-shadow: var(--shadow-sm);
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }
.btn--sm { padding: 8px 15px; font-size: .85rem; }
.btn--lg { padding: 15px 30px; font-size: 1.05rem; }
.btn--block { width: 100%; }
.btn--primary { background: linear-gradient(135deg, var(--c-primary), #9b7cff); color: #fff; }
.btn--primary:hover { background: linear-gradient(135deg, var(--c-primary-dark), #8a6cff); }
.btn--secondary { background: linear-gradient(135deg, var(--c-secondary), #ff9ec2); color: #fff; }
.btn--soft { background: var(--c-soft); color: var(--c-primary-dark); }
.btn--ghost { background: transparent; box-shadow: none; border: 2px solid var(--c-line); color: var(--c-ink-2); }
.btn--ghost:hover { border-color: var(--c-primary); color: var(--c-primary-dark); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: var(--shadow-sm); }

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 249, 242, .82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-line);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 70px;
}
.logo { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 1.15rem; }
.logo__icon { font-size: 1.4rem; }
.nav { display: flex; gap: 6px; }
.nav a {
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  color: var(--c-ink-2);
  transition: background .15s, color .15s;
}
.nav a:hover { background: var(--c-soft); color: var(--c-primary-dark); }
.header__actions { display: flex; align-items: center; gap: 8px; }

/* ---------- Hero ---------- */
.hero { padding: 64px 0 44px; text-align: center; }
.hero__badge {
  display: inline-block;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  padding: 7px 18px;
  font-size: .85rem;
  font-weight: 700;
  color: var(--c-primary-dark);
  box-shadow: var(--shadow-sm);
  margin-bottom: 22px;
}
.hero__title {
  font-size: clamp(2.1rem, 6vw, 3.6rem);
  line-height: 1.12;
  margin: 0 0 18px;
  font-weight: 800;
  letter-spacing: -.02em;
}
.hero__title--accent {
  display: block;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero__desc {
  max-width: 640px;
  margin: 0 auto 30px;
  font-size: 1.05rem;
  color: var(--c-ink-2);
}
.hero__cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero__formats { margin-top: 40px; }
.hero__formats > span {
  display: block;
  font-size: .85rem;
  font-weight: 700;
  color: var(--c-ink-3);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 12px;
}
.chips { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.chip {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  padding: 6px 15px;
  font-size: .82rem;
  font-weight: 700;
  color: var(--c-ink-2);
  box-shadow: var(--shadow-sm);
}

/* ---------- Sections ---------- */
.section { padding: 56px 0; }
.section__head { text-align: center; margin-bottom: 36px; }
.section__title {
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  font-weight: 800;
  margin: 0 0 10px;
  letter-spacing: -.02em;
}
.section__desc { margin: 0; color: var(--c-ink-2); }

/* ---------- Converter ---------- */
.converter { padding-top: 12px; }
.converter__grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 22px;
  align-items: start;
}
.dropzone {
  border: 3px dashed #e3d3ff;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #ffffff, #fffbf6);
  padding: 56px 28px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, transform .2s, box-shadow .2s, background .2s;
  box-shadow: var(--shadow-sm);
}
.dropzone:hover { border-color: var(--c-primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.dropzone.dragging { border-color: var(--c-secondary); background: #fff0f7; transform: scale(1.015); }
.dropzone__icon { font-size: 3.2rem; margin-bottom: 12px; transition: transform .2s; }
.dropzone:hover .dropzone__icon { transform: translateY(-4px) scale(1.06); }
.dropzone__title { font-size: 1.25rem; font-weight: 800; margin: 0 0 6px; }
.dropzone__sub { color: var(--c-ink-2); margin: 0 0 18px; }
.dropzone__hint {
  display: inline-block;
  background: var(--c-soft);
  border-radius: var(--radius-pill);
  padding: 7px 16px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--c-primary-dark);
}

/* ---------- Panel / fields ---------- */
.panel {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.panel__title { margin: 0 0 18px; font-size: 1.1rem; font-weight: 800; }
.field { margin-bottom: 20px; }
.field__label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  font-size: .92rem;
  margin-bottom: 9px;
  color: var(--c-ink);
}
.field__value { color: var(--c-primary-dark); font-weight: 800; }
.field__note {
  margin: 8px 0 0;
  font-size: .78rem;
  color: var(--c-ink-3);
  line-height: 1.5;
}
.field__note--center { text-align: center; }

/* Segmented buttons */
.seg { display: flex; gap: 7px; flex-wrap: wrap; }
.seg--2 .seg__btn { flex: 1 1 46%; }
.seg--3 .seg__btn { flex: 1 1 30%; }
.seg__btn {
  border: 2px solid var(--c-line);
  background: var(--c-surface);
  border-radius: var(--radius);
  padding: 9px 14px;
  font-size: .86rem;
  font-weight: 700;
  color: var(--c-ink-2);
  transition: all .15s ease;
}
.seg__btn:hover { border-color: #c9b4ff; color: var(--c-primary-dark); }
.seg__btn.active {
  background: linear-gradient(135deg, var(--c-primary), #9b7cff);
  border-color: transparent;
  color: #fff;
  box-shadow: var(--shadow-sm);
}

/* Range */
.range { width: 100%; accent-color: var(--c-primary); height: 26px; cursor: pointer; }
.range__labels { display: flex; justify-content: space-between; font-size: .75rem; color: var(--c-ink-3); font-weight: 600; }

/* Resize box */
.resize-box {
  margin-top: 12px;
  background: var(--c-bg-2);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.inline { display: flex; align-items: center; gap: 8px; font-size: .86rem; font-weight: 700; }
.inline input, .inline select {
  border: 2px solid var(--c-line);
  border-radius: 12px;
  padding: 8px 10px;
  width: 84px;
  background: #fff;
  font-weight: 600;
}
.inline select { width: auto; }
.check { display: flex; align-items: center; gap: 7px; font-size: .86rem; font-weight: 600; cursor: pointer; }
.check input { accent-color: var(--c-primary); width: 17px; height: 17px; cursor: pointer; }

/* Background */
.bg-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.color {
  -webkit-appearance: none;
  appearance: none;
  width: 46px;
  height: 38px;
  border: 2px solid var(--c-line);
  border-radius: 12px;
  padding: 3px;
  background: #fff;
  cursor: pointer;
}

/* ---------- File list ---------- */
.fileList { display: flex; flex-direction: column; gap: 12px; }
.fileList__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 8px;
}
.badge {
  display: inline-block;
  background: var(--c-soft);
  color: var(--c-primary-dark);
  border-radius: var(--radius-pill);
  padding: 2px 11px;
  font-size: .8rem;
  font-weight: 800;
  margin-left: 6px;
}
.file {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 14px;
  align-items: center;
  background: var(--c-bg-2);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 12px;
  transition: box-shadow .15s;
}
.file:hover { box-shadow: var(--shadow-sm); }
.file__thumb {
  width: 72px;
  height: 72px;
  border-radius: 14px;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--c-line);
}
.file__thumb--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}
.file__name { font-weight: 700; font-size: .92rem; word-break: break-all; }
.file__meta { font-size: .78rem; color: var(--c-ink-3); margin-top: 3px; }
.file__bar { height: 6px; background: #eee5ff; border-radius: 99px; margin-top: 8px; overflow: hidden; }
.file__bar > i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--c-primary), var(--c-secondary)); border-radius: 99px; transition: width .25s; }
.file__right { display: flex; align-items: center; gap: 10px; }
.file__size { font-size: .8rem; font-weight: 700; color: var(--c-ink-2); white-space: nowrap; text-align: right; }
.file__size small { display: block; font-weight: 600; color: var(--c-ink-3); }
.size-down { color: var(--c-ok); }
.size-up { color: var(--c-err); }
.icon-btn {
  border: none;
  background: transparent;
  font-size: 1.1rem;
  padding: 6px;
  border-radius: 10px;
  opacity: .55;
  transition: opacity .15s, background .15s;
}
.icon-btn:hover { opacity: 1; background: #ffe9ef; }

/* Batch bar */
.batch-bar {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--c-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.batch-bar__info { font-size: .88rem; color: var(--c-ink-2); font-weight: 600; }
.batch-bar__info strong { color: var(--c-ink); font-weight: 800; }

/* ---------- Ad (승인 심사 중 빈 박스 노출 방지, 승인 후 display: flex 로 활성화) ---------- */
.ad-slot {
  display: none;
  margin-top: 34px;
  border-radius: var(--radius);
  text-align: center;
  padding: 12px;
  min-height: 90px;
  align-items: center;
  justify-content: center;
}

/* ---------- Features ---------- */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.card__icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--c-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 14px;
}
.card h3 { margin: 0 0 8px; font-size: 1.05rem; font-weight: 800; }
.card p { margin: 0; font-size: .9rem; color: var(--c-ink-2); }

/* ---------- FAQ ---------- */
.faq__list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq__item {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 4px 20px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .15s;
}
.faq__item[open] { box-shadow: var(--shadow-md); }
.faq__item summary {
  cursor: pointer;
  padding: 15px 0;
  font-weight: 700;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "＋";
  font-size: 1.2rem;
  color: var(--c-primary);
  flex: none;
  transition: transform .2s;
}
.faq__item[open] summary::after { content: "－"; }
.faq__item p { margin: 0 0 16px; color: var(--c-ink-2); font-size: .92rem; }

/* ---------- Footer ---------- */
.footer { background: #2b2633; color: #d9d2e6; padding: 34px 0; margin-top: 20px; }
.footer__inner { text-align: center; }
.footer__brand { font-weight: 800; font-size: 1.1rem; margin-bottom: 6px; color: #fff; }
.footer__note { margin: 0 0 6px; font-size: .85rem; }
.footer__copy { margin: 0; font-size: .8rem; color: #9c93ad; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%) translateY(140%);
  background: #2b2633;
  color: #fff;
  border-radius: var(--radius-pill);
  padding: 13px 24px;
  font-weight: 700;
  font-size: .9rem;
  box-shadow: var(--shadow-lg);
  z-index: 200;
  opacity: 0;
  transition: transform .3s cubic-bezier(.2, .8, .3, 1), opacity .3s;
  max-width: 90vw;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.error { background: var(--c-err); }
.toast.ok { background: var(--c-ok); }

/* ---------- Overlay ---------- */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(43, 38, 51, .45);
  backdrop-filter: blur(3px);
  z-index: 150;
  display: flex;
  align-items: center;
  justify-content: center;
}
.overlay__card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 34px 44px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  font-weight: 700;
}
.spinner {
  width: 46px;
  height: 46px;
  margin: 0 auto 16px;
  border: 5px solid #eee5ff;
  border-top-color: var(--c-primary);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Hub: Tools grid ---------- */
.hero__badge--sm { font-size: .78rem; padding: 6px 13px; margin: 0; }
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 26px 24px 22px;
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  overflow: hidden;
}
.tool-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  opacity: 0;
  transition: opacity .18s ease;
}
.tool-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: #d9c9ff; }
.tool-card:hover::before { opacity: 1; }
.tool-card__icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: var(--c-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.65rem;
  margin-bottom: 15px;
}
.tool-card__title { margin: 0 0 9px; font-size: 1.08rem; font-weight: 800; }
.tool-card__desc { margin: 0 0 14px; font-size: .9rem; color: var(--c-ink-2); line-height: 1.65; }
.tool-card__tags {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.tool-card__tags li {
  background: var(--c-bg-2);
  color: var(--c-ink-2);
  border-radius: var(--radius-pill);
  padding: 4px 11px;
  font-size: .74rem;
  font-weight: 700;
}
.tool-card__go {
  margin-top: auto;
  font-weight: 800;
  font-size: .9rem;
  color: var(--c-primary-dark);
}

/* ---------- ID Photo Crop ---------- */
.dropzone--sm { padding: 32px 20px; }

.preset-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.preset {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  border: 2px solid var(--c-line);
  background: var(--c-surface);
  border-radius: var(--radius);
  padding: 12px 13px;
  text-align: left;
  transition: all .15s ease;
}
.preset:hover { border-color: #c9b4ff; transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.preset.active {
  background: linear-gradient(135deg, var(--c-primary), #9b7cff);
  border-color: transparent;
  color: #fff;
  box-shadow: var(--shadow-md);
}
.preset__name { font-size: .92rem; font-weight: 800; }
.preset__size { font-size: .78rem; font-weight: 700; opacity: .8; }
.preset__px { font-size: .72rem; opacity: .65; font-weight: 600; }

.crop-stage {
  position: relative;
  border: 2px dashed var(--c-line);
  border-radius: var(--radius);
  background: #fffcfb;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
}
.crop-empty { text-align: center; color: var(--c-ink-3); padding: 40px 20px; }
.crop-empty p { margin: 0; font-size: .92rem; line-height: 1.7; }
.result-empty__icon { font-size: 2.6rem; margin-bottom: 10px; }

.crop-canvas-wrap { position: relative; display: inline-block; line-height: 0; }
#cropCanvas {
  max-width: 100%;
  max-height: 420px;
  border-radius: 12px;
  display: block;
  cursor: crosshair;
}
.crop-guide {
  position: absolute;
  border: 2px dashed #fff;
  outline: 2px dashed rgba(124, 92, 255, .9);
  outline-offset: 3px;
  background: rgba(124, 92, 255, .08);
  cursor: move;
  box-shadow: 0 0 0 9999px rgba(20, 12, 40, .35);
  touch-action: none;
}
.crop-guide::after {
  content: "";
  position: absolute;
  inset: 33% 0;
  border-top: 1px solid rgba(255,255,255,.7);
  border-bottom: 1px solid rgba(255,255,255,.7);
}
.crop-guide::before {
  content: "";
  position: absolute;
  inset: 0 33%;
  border-left: 1px solid rgba(255,255,255,.7);
  border-right: 1px solid rgba(255,255,255,.7);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .converter__grid { grid-template-columns: 1fr; }
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .nav { display: none; }
  .preset-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .features__grid { grid-template-columns: 1fr; }
  .tools-grid { grid-template-columns: 1fr; }
  .hero { padding: 40px 0 24px; }
  .section { padding: 40px 0; }
  .dropzone { padding: 38px 18px; }
  .panel { padding: 18px; }
  .file { grid-template-columns: 56px 1fr; }
  .file__thumb { width: 56px; height: 56px; }
  .file__right { grid-column: 1 / -1; justify-content: space-between; }
  .seg--2 .seg__btn, .seg--3 .seg__btn { flex: 1 1 100%; }
  .header__actions .btn--primary { display: none; }
}

/* ---------- ID Photo Crop ---------- */
/* ============================================================
   금융계산기 모음 - style.css
   Same friendly rounded pastel design as the image converter
   ============================================================ */
:root {
  --c-primary: #5b8def;
  --c-primary-dark: #4273d4;
  --c-secondary: #34c08a;
  --c-accent: #ff9e6d;
  --c-bg: #f4f8ff;
  --c-bg-2: #eef3ff;
  --c-surface: #ffffff;
  --c-ink: #232a38;
  --c-ink-2: #5a6478;
  --c-ink-3: #8b94a8;
  --c-line: #dde6f7;
  --c-soft: #eaf0ff;
  --c-ok: #25a56e;
  --c-warn: #e8930c;
  --c-err: #e2574c;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(52, 108, 220, .08);
  --shadow-md: 0 10px 24px rgba(52, 108, 220, .12);
  --shadow-lg: 0 22px 50px rgba(52, 108, 220, .18);
  --font: "Quicksand", "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--c-ink);
  background:
    radial-gradient(1100px 400px at 92% -6%, #e2f6ee 0%, transparent 60%),
    radial-gradient(960px 380px at 2% 0%, #e6efff 0%, transparent 62%),
    var(--c-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { text-decoration: none; color: inherit; }

.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.hidden { display: none !important; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: var(--radius-pill);
  padding: 12px 22px;
  font-weight: 700;
  font-size: .95rem;
  background: var(--c-surface);
  color: var(--c-ink);
  box-shadow: var(--shadow-sm);
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }
.btn--sm { padding: 8px 15px; font-size: .85rem; }
.btn--lg { padding: 15px 30px; font-size: 1.05rem; }
.btn--block { width: 100%; }
.btn--primary { background: linear-gradient(135deg, var(--c-primary), #7aa5f5); color: #fff; }
.btn--primary:hover { background: linear-gradient(135deg, var(--c-primary-dark), #6a97ef); }
.btn--secondary { background: linear-gradient(135deg, var(--c-secondary), #5bd6a8); color: #fff; }
.btn--soft { background: var(--c-soft); color: var(--c-primary-dark); }
.btn--ghost { background: transparent; box-shadow: none; border: 2px solid var(--c-line); color: var(--c-ink-2); }
.btn--ghost:hover { border-color: var(--c-primary); color: var(--c-primary-dark); }

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(244, 248, 255, .85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-line);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 14px; height: 70px; }
.logo { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 1.12rem; white-space: nowrap; }
.logo__icon { font-size: 1.35rem; }
.nav { display: flex; gap: 4px; }
.nav__link {
  padding: 8px 13px; border-radius: var(--radius-pill);
  font-weight: 600; color: var(--c-ink-2); font-size: .92rem;
  transition: background .15s, color .15s;
}
.nav__link:hover, .nav__link.active { background: var(--c-soft); color: var(--c-primary-dark); }
.header__actions { display: flex; align-items: center; gap: 8px; }

/* ---------- Hero ---------- */
.hero { padding: 60px 0 36px; text-align: center; }
.hero__badge {
  display: inline-block; background: var(--c-surface); border: 1px solid var(--c-line);
  border-radius: var(--radius-pill); padding: 7px 18px; font-size: .85rem; font-weight: 700;
  color: var(--c-primary-dark); box-shadow: var(--shadow-sm); margin-bottom: 22px;
}
.hero__title { font-size: clamp(2rem, 5.5vw, 3.3rem); line-height: 1.15; margin: 0 0 18px; font-weight: 800; letter-spacing: -.02em; }
.hero__title--accent {
  display: block;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent;
}
.hero__desc { max-width: 620px; margin: 0 auto 30px; font-size: 1.05rem; color: var(--c-ink-2); }
.hero__cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- Sections ---------- */
.section { padding: 44px 0; }
.section__head { text-align: center; margin-bottom: 30px; }
.section__title { font-size: clamp(1.5rem, 3.6vw, 2.1rem); font-weight: 800; margin: 0 0 8px; letter-spacing: -.02em; }
.section__desc { margin: 0; color: var(--c-ink-2); }

/* ---------- Tabs ---------- */
.tabs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-bottom: 22px; }
.tab {
  display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
  border: 2px solid var(--c-line); background: var(--c-surface);
  border-radius: var(--radius-lg); padding: 20px 22px; text-align: left;
  box-shadow: var(--shadow-sm); transition: all .18s ease;
}
.tab:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: #b9c9f0; }
.tab.active {
  border-color: transparent;
  background: linear-gradient(135deg, var(--c-primary), #7aa5f5);
  color: #fff; box-shadow: var(--shadow-md);
}
.tab__icon { font-size: 1.7rem; margin-bottom: 4px; }
.tab__label { font-size: 1.08rem; font-weight: 800; }
.tab__desc { font-size: .82rem; opacity: .75; font-weight: 600; }

/* ---------- Panels ---------- */
.panel {
  background: var(--c-surface); border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow-md);
}
.tab-panel { animation: fadein .25s ease; }
.tab-panel:not(.active) { display: none !important; }
@keyframes fadein { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.panel__title { margin: 0 0 18px; font-size: 1.08rem; font-weight: 800; }
.badge {
  display: inline-block; background: var(--c-soft); color: var(--c-primary-dark);
  border-radius: var(--radius-pill); padding: 2px 11px; font-size: .76rem; font-weight: 800;
  margin-left: 8px; vertical-align: middle;
}
.calc__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.panel__col { min-width: 0; }

/* ---------- Fields ---------- */
.field { margin-bottom: 18px; }
.field__label {
  display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
  font-weight: 700; font-size: .92rem; margin-bottom: 8px;
}
.field__unit { font-size: .76rem; font-weight: 600; color: var(--c-ink-3); }
.field__note { margin: 7px 0 0; font-size: .78rem; color: var(--c-ink-3); line-height: 1.5; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.input, .select {
  width: 100%; border: 2px solid var(--c-line); border-radius: 12px;
  padding: 12px 14px; background: #fff; font-weight: 600; font-size: 1rem;
  transition: border-color .15s, box-shadow .15s;
}
.input:focus, .select:focus { outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 4px rgba(91, 141, 239, .15); }
.input::placeholder { color: #b9c1d4; font-weight: 500; }
.input[readonly] { background: var(--c-bg-2); color: var(--c-ink-2); }

.quick-amounts { display: flex; gap: 7px; margin-top: 9px; flex-wrap: wrap; }
.quick-amounts button {
  border: 1px solid var(--c-line); background: var(--c-bg-2); color: var(--c-ink-2);
  border-radius: var(--radius-pill); padding: 5px 13px; font-size: .78rem; font-weight: 700;
  transition: all .15s;
}
.quick-amounts button:hover { background: var(--c-soft); color: var(--c-primary-dark); border-color: #c3d2f2; }

/* Segmented */
.seg { display: flex; gap: 7px; flex-wrap: wrap; }
.seg__btn {
  border: 2px solid var(--c-line); background: var(--c-surface); border-radius: var(--radius);
  padding: 9px 14px; font-size: .85rem; font-weight: 700; color: var(--c-ink-2); transition: all .15s ease;
}
.seg__btn:hover { border-color: #b9c9f0; color: var(--c-primary-dark); }
.seg__btn.active {
  background: linear-gradient(135deg, var(--c-primary), #7aa5f5); border-color: transparent; color: #fff;
}

.check { display: flex; align-items: center; gap: 7px; font-size: .84rem; font-weight: 600; cursor: pointer; }
.check input { accent-color: var(--c-primary); width: 17px; height: 17px; cursor: pointer; }

/* ---------- Results ---------- */
.result-empty {
  text-align: center; color: var(--c-ink-3); padding: 50px 20px;
  border: 2px dashed var(--c-line); border-radius: var(--radius-lg); background: #fbfdff;
}
.result-empty__icon { font-size: 2.8rem; margin-bottom: 12px; }
.result-empty p { margin: 0; font-size: .95rem; line-height: 1.7; }

.result-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 18px; }
.rcard {
  background: linear-gradient(160deg, #f2f7ff, #eefafe); border: 1px solid var(--c-line);
  border-radius: var(--radius); padding: 16px 18px;
}
.rcard--primary { background: linear-gradient(160deg, #e9f2ff, #e4f4ff); border-color: #c9dcfb; }
.rcard--green { background: linear-gradient(160deg, #edf9f2, #e6f7ee); border-color: #c4e8d5; }
.rcard__label { font-size: .8rem; font-weight: 700; color: var(--c-ink-3); margin-bottom: 5px; }
.rcard__value { font-size: 1.32rem; font-weight: 800; letter-spacing: -.01em; }
.rcard__sub { font-size: .76rem; color: var(--c-ink-3); margin-top: 3px; font-weight: 600; }

.result-detail { border-top: 1px dashed var(--c-line); padding-top: 16px; }
.result-detail h4 { margin: 0 0 10px; font-size: .95rem; font-weight: 800; }
.drow { display: flex; justify-content: space-between; padding: 8px 2px; font-size: .9rem; border-bottom: 1px solid #f0f4fc; }
.drow:last-child { border-bottom: none; }
.drow span:first-child { color: var(--c-ink-2); font-weight: 600; }
.drow span:last-child { font-weight: 800; font-variant-numeric: tabular-nums; }
.drow.total { background: var(--c-soft); border-radius: 10px; padding: 10px 12px; margin-top: 6px; }
.drow.total span:first-child { color: var(--c-primary-dark); }

/* Chart */
.chart-box { margin-top: 18px; background: #fbfdff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 16px; }
.chart-box h4 { margin: 0 0 10px; font-size: .9rem; font-weight: 800; }
.chart { width: 100%; height: 190px; display: block; }
.chart-legend { display: flex; gap: 16px; margin-top: 10px; font-size: .78rem; font-weight: 700; color: var(--c-ink-2); }
.chart-legend span { display: inline-flex; align-items: center; gap: 6px; }
.chart-legend i { width: 14px; height: 14px; border-radius: 4px; display: inline-block; }

/* ---------- Schedule table ---------- */
.schedule { margin-top: 26px; background: var(--c-surface); border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 22px; box-shadow: var(--shadow-sm); }
.schedule__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; flex-wrap: wrap; gap: 10px; }
.schedule__head .panel__title { margin: 0; }
.schedule__actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.table-wrap { max-height: 420px; overflow: auto; border: 1px solid var(--c-line); border-radius: var(--radius); }
.table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.table th {
  position: sticky; top: 0; background: var(--c-soft); color: var(--c-primary-dark);
  padding: 11px 12px; text-align: right; font-weight: 800; border-bottom: 1px solid var(--c-line); z-index: 2;
}
.table th:first-child, .table td:first-child { text-align: center; }
.table td { padding: 9px 12px; text-align: right; border-bottom: 1px solid #f2f5fb; font-variant-numeric: tabular-nums; font-weight: 600; }
.table tbody tr:hover { background: #f7faff; }
.table tfoot td { background: var(--c-soft); font-weight: 800; border-top: 2px solid var(--c-line); }

/* ---------- Info article (SEO 콘텐츠) ---------- */
.info-article {
  margin-top: 26px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  box-shadow: var(--shadow-sm);
}
.info-article__title { margin: 0 0 14px; font-size: 1.12rem; font-weight: 800; }
.info-article__body { font-size: .94rem; color: var(--c-ink-2); line-height: 1.75; }
.info-article__body h4 { margin: 18px 0 6px; font-size: .98rem; color: var(--c-ink); font-weight: 800; }
.info-article__body h4:first-child { margin-top: 0; }
.info-article__body p { margin: 0 0 10px; }
.info-article__body strong { color: var(--c-primary-dark); }
.info-article__warn {
  margin-top: 16px !important;
  padding: 12px 14px;
  background: #fff8ec;
  border: 1px solid #ffe6c4;
  border-radius: 12px;
  font-size: .84rem !important;
  color: var(--c-ink-2) !important;
}

/* ---------- Ad ---------- */
.ad-slot {
  margin-top: 26px; border: 2px dashed var(--c-line); border-radius: var(--radius);
  background: rgba(255, 255, 255, .6); text-align: center; padding: 26px;
  font-size: .82rem; font-weight: 700; color: var(--c-ink-3); min-height: 92px;
  display: flex; align-items: center; justify-content: center;
}

/* ---------- FAQ ---------- */
.faq__list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq__item { background: var(--c-surface); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 4px 20px; box-shadow: var(--shadow-sm); transition: box-shadow .15s; }
.faq__item[open] { box-shadow: var(--shadow-md); }
.faq__item summary {
  cursor: pointer; padding: 15px 0; font-weight: 700; list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: "＋"; font-size: 1.2rem; color: var(--c-primary); flex: none; transition: transform .2s; }
.faq__item[open] summary::after { content: "－"; }
.faq__item p { margin: 0 0 16px; color: var(--c-ink-2); font-size: .92rem; }

/* ---------- Privacy page ---------- */
.info-article__updated { margin: 0 0 16px; font-size: .8rem; font-weight: 700; color: var(--c-ink-3); }
.info-article > p { margin: 0 0 12px; font-size: .94rem; color: var(--c-ink-2); line-height: 1.75; }
.info-article h3 { margin: 24px 0 8px; font-size: 1.02rem; font-weight: 800; color: var(--c-ink); }
.info-article strong { color: var(--c-primary-dark); }

/* ---------- CTA box (블로그 → 계산기 내부 링크) ---------- */
.cta-box {
  margin: 26px 0;
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  background: linear-gradient(135deg, #eef3ff, #e2f6ee);
  border: 1px solid #cfdcf7;
  box-shadow: var(--shadow-sm);
}
.cta-box--warm { background: linear-gradient(135deg, #fff4e8, #ffeef1); border-color: #ffe0c9; }
.cta-box__title { margin: 0 0 6px; font-size: 1rem; font-weight: 800; color: var(--c-ink); }
.cta-box__desc { margin: 0 0 14px; font-size: .88rem; color: var(--c-ink-2); line-height: 1.6; }
.cta-box .btn { margin: 0; }
@media (max-width: 640px) {
  .cta-box { padding: 18px; margin: 22px 0; }
  .cta-box .btn { width: 100%; }
}

/* ---------- Guide card on the hub (블로그형 문서 카드) ---------- */
.tool-card--guide {
  background: linear-gradient(160deg, #fbfcff, #f4f8ff);
}
.tool-card--guide .tool-card__go { color: var(--c-primary-dark); }
.tool-card--guide:hover { box-shadow: var(--shadow-lg); }

/* ---------- Blog guide page ---------- */
.blog-hero { background: linear-gradient(135deg, #eef3ff 0%, #f4f8ff 60%, #e8fbf2 100%); }
.blog-meta {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin: 0 0 18px; font-size: .8rem; font-weight: 700; color: var(--c-ink-3);
}
.blog-meta__tag {
  background: var(--c-soft); color: var(--c-primary-dark); border-radius: var(--radius-pill);
  padding: 3px 12px; font-size: .76rem; font-weight: 800;
}
.blog-toc {
  margin: 0 0 22px; padding: 16px 20px; background: var(--c-bg-2);
  border: 1px solid var(--c-line); border-radius: var(--radius);
}
.blog-toc h4 { margin: 0 0 8px; font-size: .84rem; font-weight: 800; color: var(--c-ink-2); }
.blog-toc ol { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 6px; }
.blog-toc a { font-size: .86rem; font-weight: 700; color: var(--c-primary-dark); }
.blog-toc a:hover { text-decoration: underline; }
.blog-compare { width: 100%; border-collapse: collapse; margin: 14px 0 20px; font-size: .88rem; }
.blog-compare th, .blog-compare td { border: 1px solid var(--c-line); padding: 10px 12px; text-align: left; vertical-align: top; }
.blog-compare th { background: var(--c-soft); color: var(--c-primary-dark); font-weight: 800; white-space: nowrap; }
.blog-compare td:first-child { font-weight: 800; color: var(--c-ink); background: #fbfcff; white-space: nowrap; }
.blog-callout {
  margin: 18px 0; padding: 14px 16px; background: #fff8ec; border: 1px solid #ffe6c4;
  border-left: 5px solid var(--c-warn); border-radius: 12px; font-size: .86rem; color: var(--c-ink-2); line-height: 1.65;
}
.blog-related { margin-top: 34px; }
.blog-related__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 14px; }
.blog-related__card {
  display: block; padding: 16px 18px; background: var(--c-surface); border: 1px solid var(--c-line);
  border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: box-shadow .15s, transform .15s;
}
.blog-related__card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.blog-related__card strong { display: block; margin-bottom: 4px; font-size: .94rem; color: var(--c-ink); }
.blog-related__card span { font-size: .8rem; color: var(--c-ink-3); line-height: 1.5; }
@media (max-width: 640px) {
  .blog-related__grid { grid-template-columns: 1fr; }
  .blog-compare { font-size: .8rem; }
  .blog-compare th, .blog-compare td { padding: 8px; }
}

/* ---------- Footer ---------- */
.footer { background: #1f2735; color: #c9d2e6; padding: 34px 0; margin-top: 16px; }
.footer__inner { text-align: center; }
.footer__brand { font-weight: 800; font-size: 1.1rem; margin-bottom: 10px; color: #fff; }
.footer__note { margin: 0 auto 10px; font-size: .82rem; max-width: 720px; line-height: 1.65; color: #9aa5bd; }
.footer__copy { margin: 0 auto; font-size: .8rem; max-width: 880px; line-height: 1.65; color: #7c86a0; }
.footer__links { margin: 12px 0 0; font-size: .8rem; }
.footer__links a { color: #9aa5bd; text-decoration: underline; text-underline-offset: 3px; }
.footer__links a:hover { color: #fff; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(140%);
  background: #1f2735; color: #fff; border-radius: var(--radius-pill); padding: 13px 24px;
  font-weight: 700; font-size: .9rem; box-shadow: var(--shadow-lg); z-index: 200; opacity: 0;
  transition: transform .3s cubic-bezier(.2, .8, .3, 1), opacity .3s; max-width: 90vw;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.error { background: var(--c-err); }
.toast.ok { background: var(--c-ok); }

/* ---------- Responsive ---------- */
@media (max-width: 1240px) {
  .tabs { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 1100px) {
  .tabs { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .tabs { grid-template-columns: 1fr; }
  .calc__grid { grid-template-columns: 1fr; }
  .nav { display: none; }
}
@media (max-width: 640px) {
  .section { padding: 32px 0; }
  .hero { padding: 38px 0 22px; }
  .panel { padding: 18px; }
  .result-cards { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .seg__btn { flex: 1 1 100%; }
  .header__actions .btn { padding: 8px 12px; font-size: .8rem; }
  .table th, .table td { padding: 8px 8px; font-size: .8rem; }
}

/* ---------- Mobile UX (스마트폰 터치 최적화) ---------- */
@media (max-width: 640px) {
  /* iOS Safari 줌 방지: 입력창 최소 16px */
  .input, .select { font-size: 16px; padding: 13px 12px; }
  /* 터치 타깃 최소 크기 확보 (접근성 가이드라인 44px) */
  .btn, .seg__btn, .quick-amounts button { min-height: 44px; }
  .check input { width: 20px; height: 20px; }
  .check { padding: 4px 0; }
  /* 표: 화면 밖 삐져나감 방지 (가로 스크롤) */
  .table-wrap { max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .table { min-width: 560px; }
  .schedule, .info-article { padding: 18px 16px; }
  .schedule__actions { gap: 10px; }
  .hero__title { font-size: 1.7rem; line-height: 1.3; }
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; }
  .hero__desc { font-size: .9rem; }
  .container { padding: 0 16px; }
  .panel__title { font-size: 1rem; }
  .faq__item { padding: 4px 16px; }
  .faq__item p { font-size: .88rem; }
  .footer { padding: 28px 0; }
  .footer__copy { font-size: .74rem; }
  .toast { font-size: .84rem; padding: 11px 18px; }
}

/* ---------- 다크모드 대비 광고/차트 색상 안정화 ---------- */
@media (prefers-color-scheme: dark) {
  .ad-slot { background: rgba(255, 255, 255, .55); }
}