:root {
  --font-display: "Space Grotesk", "Noto Sans KR", sans-serif;
  --font-body: "Noto Sans KR", "Space Grotesk", sans-serif;
}

body[data-theme="light"] {
  --bg: #f3efe8;
  --bg-accent: #e8dccc;
  --panel: rgba(255, 251, 246, 0.86);
  --panel-strong: #fffaf3;
  --ink: #1c1814;
  --muted: #63584b;
  --line: rgba(28, 24, 20, 0.12);
  --accent: #cb5c36;
  --accent-2: #197278;
  --shadow: 0 24px 60px rgba(84, 54, 28, 0.14);
  --drop: rgba(203, 92, 54, 0.84);
}

body[data-theme="dark"] {
  --bg: #101418;
  --bg-accent: #182129;
  --panel: rgba(19, 25, 31, 0.86);
  --panel-strong: #161d24;
  --ink: #f1efe9;
  --muted: #afb5bb;
  --line: rgba(241, 239, 233, 0.12);
  --accent: #ff8358;
  --accent-2: #3fc1c9;
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.3);
  --drop: rgba(255, 131, 88, 0.84);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, color-mix(in srgb, var(--accent) 16%, transparent), transparent 30%),
    radial-gradient(circle at bottom right, color-mix(in srgb, var(--accent-2) 20%, transparent), transparent 26%),
    linear-gradient(160deg, var(--bg) 0%, var(--bg-accent) 100%);
}

body.page-drag-active { overflow: hidden; }

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

button, .button-link {
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.18s ease, opacity 0.18s ease, background 0.18s ease;
}

button:hover, .button-link:hover { transform: translateY(-1px); }

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

.page-shell {
  width: min(1280px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 20px 0 48px;
}

.page-shell-narrow {
  width: min(960px, calc(100vw - 32px));
}

.panel, .content-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  margin-bottom: 24px;
}

.topbar-main,
.topbar-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  color: white;
  font-family: var(--font-display);
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-copy strong {
  font-family: var(--font-display);
}

.brand-copy small,
.section-note,
.muted,
.tool-card p,
.hero-card p,
.content-card p,
.content-card li,
.status-text,
.slot-header p,
.result-card__body p {
  color: var(--muted);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.site-nav__link,
.footer-link {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel-strong) 88%, transparent);
  color: var(--muted);
}

.site-nav__link.is-active {
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent);
}

.select-shell {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel-strong) 88%, transparent);
  border: 1px solid var(--line);
}

.select-shell span {
  color: var(--muted);
  font-size: 0.92rem;
}

select, input[type="text"], textarea {
  width: 100%;
  color: var(--ink);
  background: color-mix(in srgb, var(--panel-strong) 92%, transparent);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 16px;
  outline: none;
}

select { border-radius: 999px; }
textarea { resize: vertical; min-height: 130px; }

.primary-button,
.ghost-button,
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
}

.primary-button,
.button-link.primary-button {
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 65%, white));
  color: white;
}

.ghost-button {
  background: color-mix(in srgb, var(--panel-strong) 88%, transparent);
  color: var(--ink);
  border: 1px solid var(--line);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.8fr);
  gap: 20px;
  margin-bottom: 22px;
}

.hero-copy,
.hero-card,
.tool-card,
.content-card,
.tool-panel,
.preview-panel,
.sidebar-card {
  padding: 24px;
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.76rem;
  color: var(--accent);
}

.hero h1,
.content-card h1,
.tool-page-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  line-height: 0.95;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 22px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tool-card h2 {
  min-height: 4.8em;
}

.tool-card > p:not(.tool-card__index) {
  min-height: 5.6em;
}

.tool-card .button-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: auto;
}

.tool-card .button-link,
.tool-card .ghost-button,
.tool-card .primary-button {
  width: 100%;
}

.tool-card__index {
  margin: 0;
  color: var(--accent);
  font-family: var(--font-display);
  letter-spacing: 0.18em;
}

.ad-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 16px;
  padding: 24px;
}

.ad-slot {
  min-height: 120px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 12%, transparent), color-mix(in srgb, var(--accent-2) 12%, transparent)),
    color-mix(in srgb, var(--panel-strong) 92%, transparent);
  border: 1px dashed var(--line);
  border-radius: 22px;
}

.content-stack {
  display: grid;
  gap: 18px;
}

.content-link-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.content-card .content-link-grid {
  margin-top: 28px;
}

.page-shell > .content-card + .content-card,
.page-shell > .content-card + .trust-grid {
  margin-top: 22px;
}

.content-link-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-strong) 92%, transparent);
}

.content-link-card strong {
  font-size: 1.05rem;
}

.content-link-card__meta {
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-strong) 92%, transparent);
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.content-card h2,
.sidebar-card h2,
.tool-panel h2,
.preview-panel h2 {
  margin: 0 0 12px;
  font-size: 1.15rem;
}

.content-card p,
.content-card ul {
  margin: 0 0 12px;
  line-height: 1.7;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.content-card ul {
  padding-left: 18px;
}

.tool-layout {
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
  gap: 20px;
}

.tool-main {
  display: grid;
  gap: 18px;
}

.sidebar-card {
  position: sticky;
  top: 20px;
  height: fit-content;
}

.workflow-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.target-badge,
.result-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 6px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
  font-size: 0.88rem;
}

.input-slots {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.input-slots.single-column {
  grid-template-columns: 1fr;
}

.upload-slot {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px;
  border-radius: 24px;
  background: color-mix(in srgb, var(--panel-strong) 90%, transparent);
  border: 1px solid var(--line);
}

.upload-slot.active-target {
  outline: 2px solid color-mix(in srgb, var(--accent) 44%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent);
}

.slot-header h3,
.result-card h3 {
  margin: 0;
}

.slot-actions,
.button-row,
.footer-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.drop-area {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 200px;
  border-radius: 22px;
  border: 1px dashed var(--line);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 8%, transparent), color-mix(in srgb, var(--accent-2) 8%, transparent)),
    color-mix(in srgb, var(--panel-strong) 90%, transparent);
  overflow: hidden;
  text-align: center;
  color: var(--muted);
}

.drop-area.drag-over {
  border-color: color-mix(in srgb, var(--accent) 58%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent);
}

.drop-area--selectable {
  cursor: crosshair;
}

.drop-area img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.selection-box {
  position: absolute;
  border: 2px solid #fff;
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.18);
  pointer-events: none;
}

.selection-box--source {
  border-color: #8ce6eb;
  background: rgba(63, 193, 201, 0.18);
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.preview-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.result-card {
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-strong) 92%, transparent);
}

.result-card__image {
  display: grid;
  place-items: center;
  min-height: 220px;
  background:
    linear-gradient(45deg, color-mix(in srgb, var(--ink) 4%, transparent) 25%, transparent 25%) -12px 0 / 24px 24px,
    linear-gradient(-45deg, color-mix(in srgb, var(--ink) 4%, transparent) 25%, transparent 25%) -12px 0 / 24px 24px,
    linear-gradient(45deg, transparent 75%, color-mix(in srgb, var(--ink) 4%, transparent) 75%) -12px 0 / 24px 24px,
    linear-gradient(-45deg, transparent 75%, color-mix(in srgb, var(--ink) 4%, transparent) 75%) -12px 0 / 24px 24px,
    color-mix(in srgb, var(--panel-strong) 90%, transparent);
}

.result-card__image img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.result-card__body {
  padding: 14px;
}

.request-summary {
  margin: 14px 0 0;
  padding: 16px;
  border-radius: 20px;
  overflow: auto;
  background: color-mix(in srgb, var(--ink) 5%, transparent);
  color: var(--ink);
  white-space: pre-wrap;
}

.page-drop-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
  z-index: 50;
}

.page-drop-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.page-drop-overlay__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: min(560px, calc(100vw - 32px));
  min-height: 220px;
  padding: 24px;
  border-radius: 28px;
  border: 2px dashed rgba(255, 255, 255, 0.72);
  background: var(--drop);
  color: white;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.24);
}

.page-drop-overlay__inner strong {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.8rem);
}

.site-footer,
.page-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0 4px;
}

@media (max-width: 1100px) {
  .hero,
  .ad-section,
  .tool-layout,
  .tool-grid,
  .preview-grid,
  .preview-grid--two,
  .form-grid,
  .content-link-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .sidebar-card {
    position: static;
  }
}

@media (max-width: 760px) {
  .page-shell,
  .page-shell-narrow {
    width: min(100vw - 20px, 1280px);
    padding-top: 12px;
  }

  .topbar,
  .topbar-main,
  .topbar-controls,
  .panel-heading,
  .slot-actions,
  .page-footer,
  .site-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .button-row {
    flex-direction: column;
    align-items: stretch;
  }

  .tool-card .button-row {
    grid-template-columns: 1fr;
  }

  .input-slots {
    grid-template-columns: 1fr;
  }
}