/* ───────────────────────────────
   TOKENS
─────────────────────────────── */
:root {
  --bg: #F7F6F3;
  --surface: #FFFFFF;
  --surface2: #F3F2EF;
  --border: #E5E4E0;
  --border2: #CCCBC6;
  --ink: #1C1B18;
  --ink2: #5A5955;
  --ink3: #9A9894;
  --ink4: #C8C7C2;
  --accent: #1C1B18;
  --accent-fg: #F7F6F3;
  --sidebar-w: 280px;
  --r: 12px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
}

body {
  font-family: 'Pretendard', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  -webkit-font-smoothing: antialiased;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea,
select {
  font-family: inherit;
}

i[data-lucide] {
  display: inline-flex;
  flex-shrink: 0;
}

/* ───────────────────────────────
   SIDEBAR
─────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 200;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar::-webkit-scrollbar {
  width: 0;
}

/* logo */
.sb-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 26px 22px 20px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  flex-shrink: 0;
}

.sb-logo-mark {
  width: 40px;
  height: 40px;
  background: var(--ink);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sb-logo-text {
  line-height: 1.3;
}

.sb-logo-text strong {
  display: block;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -.02em;
}

.sb-logo-text span {
  display: block;
  font-size: 13px;
  color: var(--ink3);
  font-weight: 400;
}

/* nav */
.sb-nav {
  flex: 1;
  padding: 14px 12px 0;
}

.sb-top-btns {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 6px;
}

.sb-top-btn {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 10px;
  border-radius: var(--r);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink2);
  cursor: pointer;
  transition: background .12s, color .12s;
}

.sb-top-btn:hover {
  background: var(--surface2);
  color: var(--ink);
}

.sb-top-btn.active {
  background: var(--ink);
  color: #fff;
}

.sb-top-btn.active i[data-lucide] {
  stroke: #fff;
}

/* group */
.sb-group {
  margin-top: 2px;
}

.sb-group-header {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 10px;
  border-radius: var(--r);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink2);
  cursor: pointer;
  transition: background .12s, color .12s;
  user-select: none;
}

.sb-group-header:hover {
  background: var(--surface2);
  color: var(--ink);
}

.sb-group-header .chevron {
  margin-left: auto;
  transition: transform .2s;
  color: var(--ink4);
}

.sb-group-header.open .chevron {
  transform: rotate(90deg);
}

.sb-group-header.open {
  color: var(--ink);
}

.sb-sub {
  overflow: hidden;
  max-height: 0;
  transition: max-height .22s ease;
  padding-left: 8px;
}

.sb-sub.open {
  max-height: 200px;
}

.sb-sub-item {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px 9px 32px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink3);
  cursor: pointer;
  transition: background .12s, color .12s;
}

.sb-sub-item::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--ink4);
  border-radius: 50%;
  flex-shrink: 0;
  margin-left: -18px;
}

.sb-sub-item:hover {
  background: var(--surface2);
  color: var(--ink2);
}

.sb-sub-item.active {
  color: var(--ink);
  font-weight: 600;
}

.sb-sub-item.active::before {
  background: var(--ink);
}

/* bottom usage */
.sb-bottom {
  flex-shrink: 0;
  padding: 16px 18px 24px;
  margin-top: auto;
  border-top: 1px solid var(--border);
}

.sb-usage-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.sb-usage-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink3);
}

.sb-usage-val {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink2);
}

.sb-usage-track {
  height: 3px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 10px;
}

.sb-usage-fill {
  height: 3px;
  background: var(--ink);
  border-radius: 99px;
  width: 30%;
}

.sb-upgrade {
  display: block;
  width: 100%;
  text-align: center;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: 9px;
  padding: 11px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink2);
  cursor: pointer;
  transition: all .15s;
}

.sb-upgrade:hover {
  background: var(--btn-hover, var(--ink));
  border-color: var(--btn-hover, var(--ink));
  color: #fff;
}

.sb-login {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink3);
  cursor: pointer;
  background: transparent;
  border: none;
  font-family: inherit;
  transition: color .15s;
}

.sb-login:hover {
  color: var(--ink);
}

/* ───────────────────────────────
   MAIN
─────────────────────────────── */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
  overflow-y: auto;
}

.main::-webkit-scrollbar {
  width: 4px;
}

.main::-webkit-scrollbar-thumb {
  background: var(--border2);
  border-radius: 99px;
}

/* ───────────────────────────────
   DASHBOARD PAGE
─────────────────────────────── */
.dash-wrap {
  padding: 44px 48px 72px;
}

.dash-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.04em;
  margin-bottom: 6px;
}

.dash-sub {
  font-size: 15px;
  color: var(--ink3);
  margin-bottom: 32px;
}

.dash-usage-row {
  display: flex;
  align-items: stretch;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  margin-bottom: 32px;
  overflow: hidden;
}

.dash-usage-item {
  flex: 1;
  padding: 24px 26px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.dash-usage-item:last-child {
  border-right: none;
}

.dash-usage-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink3);
  letter-spacing: .04em;
  text-transform: uppercase;
}

.dash-usage-num {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -.05em;
  color: var(--ink);
  line-height: 1;
}

.dash-usage-unit {
  font-size: 16px;
  font-weight: 500;
  color: var(--ink3);
  margin-left: 3px;
}

.dash-usage-sub {
  font-size: 13px;
  color: var(--ink4);
}

.dash-section-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.dash-section-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -.02em;
}

.dash-section-tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink3);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 4px 12px;
}

/* solution cards */
.sol-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 32px;
}

.sol-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 28px 22px;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s, transform .15s;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.sol-card:hover {
  border-color: var(--accent, var(--border2));
  box-shadow: 0 4px 20px rgba(0, 0, 0, .07);
  transform: translateY(-2px);
}

.sol-card.consulting {
  background: var(--btn-bg, var(--ink));
  border-color: var(--btn-bg, var(--ink));
}

.sol-card.consulting:hover {
  background: var(--btn-hover, var(--ink));
  border-color: var(--btn-hover, var(--ink));
}

.sol-icon {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: var(--ink2);
}

.sol-card.consulting .sol-icon {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .15);
  color: #fff;
}

.sol-platform {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 4px;
}

.sol-card.consulting .sol-platform {
  color: rgba(255, 255, 255, .5);
}

.sol-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--ink);
  margin-bottom: 14px;
}

.sol-card.consulting .sol-name {
  color: #fff;
}

.sol-links {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.sol-link {
  font-size: 15px;
  color: var(--ink3);
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  transition: color .12s;
}

.sol-link:hover {
  color: var(--ink);
}

.sol-link::before {
  content: '';
  width: 3px;
  height: 3px;
  background: currentColor;
  border-radius: 50%;
  opacity: .5;
  flex-shrink: 0;
}

.sol-card.consulting .sol-link {
  color: rgba(255, 255, 255, .55);
}

.sol-card.consulting .sol-link:hover {
  color: rgba(255, 255, 255, .9);
}

/* tip cards */
.tip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.tip-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s, transform .15s;
  text-decoration: none;
  display: flex;
  flex-direction: column;
}

.tip-card:hover {
  border-color: var(--accent, var(--border2));
  box-shadow: 0 4px 20px rgba(0, 0, 0, .07);
  transform: translateY(-2px);
}

.tip-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--ink3);
}

.tip-thumb.t1 {
  background: #FEF3EE;
  color: #C4521A;
}

.tip-thumb.t2 {
  background: #FFFBEB;
  color: #B45309;
}

.tip-thumb.t3 {
  background: #F0FDF4;
  color: #166534;
}

.tip-thumb.t4 {
  background: #EFF6FF;
  color: #1D4ED8;
}

.tip-body {
  padding: 18px 20px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.tip-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
  padding: 3px 9px;
  border-radius: 5px;
  margin-bottom: 10px;
  width: fit-content;
}

.tip-badge.r {
  background: #FEE2E2;
  color: #B91C1C;
}

.tip-badge.n {
  background: #FEF3C7;
  color: #92400E;
}

.tip-badge.f {
  background: #DCFCE7;
  color: #166534;
}

.tip-badge.s {
  background: #DBEAFE;
  color: #1D4ED8;
}

.tip-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.tip-desc {
  font-size: 14px;
  color: var(--ink3);
  line-height: 1.55;
  margin-top: auto;
  padding-top: 6px;
}

/* footer */
.dash-footer {
  border-top: 1px solid var(--border);
  padding: 24px 40px;
  margin-top: 20px;
}

.dash-footer p {
  font-size: 11.5px;
  color: var(--ink3);
  line-height: 1.8;
}

.dash-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  margin-bottom: 12px;
}

.dash-footer-links a {
  font-size: 11.5px;
  color: var(--ink3);
  text-decoration: underline;
}

/* ───────────────────────────────
   CHAT PAGE (컨설팅)
─────────────────────────────── */
.chat-page {
  padding: 44px 48px 72px;
}

.chat-page-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.04em;
  margin-bottom: 6px;
}

.chat-page-sub {
  font-size: 15px;
  color: var(--ink3);
  margin-bottom: 32px;
}

.chat-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
}

.chat-intro {
  padding: 32px 32px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
}

.chat-intro-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.chat-intro-msg {
  font-size: 16px;
  color: var(--ink2);
  line-height: 1.7;
}

.chat-response {
  display: none;
  padding: 28px 32px;
  border-bottom: 1px solid var(--border);
}

.chat-response.visible {
  display: block;
  animation: fadeIn .25s ease;
}

.chat-response-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.chat-response-bubble {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 20px 22px;
  font-size: 15px;
  color: var(--ink2);
  line-height: 1.75;
}

.chat-input-area {
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-input-row {
  display: flex;
  gap: 10px;
}

.chat-input {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 14px 18px;
  font-size: 15px;
  color: var(--ink);
  outline: none;
  resize: none;
  line-height: 1.55;
  transition: border-color .15s;
}

.chat-input:focus {
  border-color: var(--border2);
  background: var(--surface);
}

.chat-input::placeholder {
  color: var(--ink4);
}

.chat-send-btn {
  background: var(--btn-bg, var(--ink));
  color: var(--btn-text, #fff);
  border: none;
  border-radius: var(--r);
  padding: 0 24px;
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 7px;
  transition: opacity .15s;
  flex-shrink: 0;
}

.chat-send-btn:hover {
  background: var(--btn-hover, var(--ink));
  opacity: 1;
}

.chat-notice {
  font-size: 13px;
  color: var(--ink4);
  text-align: center;
}

/* ───────────────────────────────
   TOOL PAGE
─────────────────────────────── */
.tool-page {
  padding: 44px 48px 72px;
}

.tool-page-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.04em;
  margin-bottom: 6px;
}

.tool-page-sub {
  font-size: 15px;
  color: var(--ink3);
  margin-bottom: 32px;
}

.tool-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  max-width: 840px;
}

.tool-box-header {
  padding: 20px 28px;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--ink3);
  display: flex;
  align-items: center;
  gap: 7px;
}

.tool-form {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink2);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 13px 16px;
  font-size: 15px;
  color: var(--ink);
  outline: none;
  transition: border-color .15s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--border2);
  background: var(--surface);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--ink4);
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
  line-height: 1.55;
}

.form-select {
  cursor: pointer;
}

.tool-run-btn {
  width: 100%;
  background: var(--btn-bg, var(--ink));
  color: var(--btn-text, #fff);
  border: none;
  border-radius: 9px;
  padding: 16px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.01em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: opacity .15s;
}

.tool-run-btn:hover {
  background: var(--btn-hover, var(--ink));
  opacity: 1;
}

.result-box {
  display: none;
  margin-top: 16px;
  max-width: 840px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
}

.result-box.visible {
  display: block;
  animation: fadeIn .25s ease;
}

.result-box-header {
  padding: 18px 28px;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.result-box-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--ink3);
}

.result-box-actions {
  display: flex;
  gap: 8px;
}

.result-action-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink2);
  cursor: pointer;
  transition: all .15s;
}

.result-action-btn:hover {
  border-color: var(--border2);
  color: var(--ink);
  background: var(--surface2);
}

.result-content {
  padding: 28px;
  font-size: 15px;
  color: var(--ink2);
  line-height: 1.8;
  white-space: pre-wrap;
}

/* ───────────────────────────────
   ARCHIVE
─────────────────────────────── */
.archive-page {
  padding: 44px 48px 72px;
}

.archive-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.04em;
  margin-bottom: 6px;
}

.archive-sub {
  font-size: 15px;
  color: var(--ink3);
  margin-bottom: 32px;
}

.data-table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  padding: 14px 22px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink3);
  text-align: left;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 16px 22px;
  font-size: 15px;
  color: var(--ink2);
  border-bottom: 1px solid var(--border);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background: var(--surface2);
}

.badge {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
}

.badge-blog {
  background: #DCFCE7;
  color: #166534;
}

.badge-yt {
  background: #FEE2E2;
  color: #B91C1C;
}

.badge-ig {
  background: #F3E8FF;
  color: #7E22CE;
}

.badge-chat {
  background: #DBEAFE;
  color: #1D4ED8;
}

.row-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink2);
  cursor: pointer;
  transition: all .15s;
}

.row-btn:hover {
  border-color: var(--btn-bg, var(--border2));
  color: var(--btn-bg, var(--ink));
  background: var(--surface2);
}

/* FAVORITES */
.fav-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.fav-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 22px;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}

.fav-card:hover {
  border-color: var(--border2);
  box-shadow: 0 4px 20px rgba(0, 0, 0, .07);
  transform: translateY(-1px);
}

.fav-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.fav-date {
  font-size: 13px;
  color: var(--ink4);
}

.fav-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.fav-preview {
  font-size: 14px;
  color: var(--ink3);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* USAGE */
.usage-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.usage-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 24px 22px;
}

.usage-card-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 10px;
}

.usage-card-value {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -.04em;
  color: var(--ink);
}

.usage-card-value small {
  font-size: 15px;
  font-weight: 400;
  color: var(--ink3);
}

.usage-card-sub {
  font-size: 13px;
  color: var(--ink3);
  margin-top: 4px;
}

.mini-track {
  height: 3px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 10px;
}

.mini-fill {
  height: 3px;
  background: var(--ink);
  border-radius: 99px;
}

/* ───────────────────────────────
   MYPAGE / FORMS
─────────────────────────────── */
.mypage-wrap {
  padding: 44px 48px 72px;
}

.mypage-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.04em;
  margin-bottom: 6px;
}

.mypage-sub {
  font-size: 15px;
  color: var(--ink3);
  margin-bottom: 32px;
}

.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 36px;
  max-width: 720px;
  margin-bottom: 16px;
}

.form-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.form-flat {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--btn-bg, var(--ink));
  color: var(--btn-text, #fff);
  border: none;
  border-radius: 9px;
  padding: 13px 26px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all .15s;
  margin-top: 4px;
}

.btn-primary:hover {
  background: var(--btn-hover, var(--ink));
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink2);
  cursor: pointer;
  transition: all .15s;
  margin-top: 4px;
}

.btn-ghost:hover {
  border-color: var(--btn-bg, var(--border2));
  color: var(--btn-bg, var(--ink));
  background: var(--surface2);
}

.btn-danger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid #FECACA;
  border-radius: 9px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 600;
  color: #B91C1C;
  cursor: pointer;
  transition: all .15s;
  margin-top: 4px;
}

.btn-danger:hover {
  background: #FEF2F2;
}

.btn-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* REFERRAL */
.ref-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 36px;
  max-width: 600px;
  margin-bottom: 20px;
}

.ref-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 14px;
}

.ref-code {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 18px 22px;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: .12em;
  color: var(--ink);
  text-align: center;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

.btn-copy {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: 9px;
  padding: 13px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink2);
  cursor: pointer;
  transition: all .15s;
}

.btn-copy:hover {
  background: var(--btn-hover, var(--ink));
  border-color: var(--btn-hover, var(--ink));
  color: #fff;
}

.ref-note {
  font-size: 14px;
  color: var(--ink3);
  line-height: 1.7;
  margin-top: 16px;
}

/* SUBSCRIPTION */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 760px;
  margin-bottom: 24px;
}

.plan-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 30px 26px;
  position: relative;
  transition: box-shadow .15s;
}

.plan-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, .07);
}

.plan-card.current {
  background: var(--ink);
  border-color: var(--ink);
}

.plan-card.current * {
  color: rgba(255, 255, 255, .7) !important;
}

.plan-card.current .plan-price,
.plan-card.current .plan-name {
  color: #fff !important;
}

.plan-chip {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: #fff;
  font-size: 9.5px;
  font-weight: 800;
  letter-spacing: .06em;
  padding: 3px 10px;
  border-radius: 99px;
  white-space: nowrap;
}

.plan-card.current .plan-chip {
  background: #fff;
  color: var(--ink);
}

.plan-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.plan-price {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -.04em;
  color: var(--ink);
}

.plan-price small {
  font-size: 14px;
  font-weight: 400;
  color: var(--ink3);
}

.plan-desc {
  font-size: 14px;
  color: var(--ink3);
  margin: 10px 0 16px;
  line-height: 1.5;
}

.plan-feat {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  color: var(--ink2);
  padding: 6px 0;
}

.feat-check {
  color: var(--ink);
  flex-shrink: 0;
}

.plan-btn {
  width: 100%;
  margin-top: 16px;
  padding: 9px;
  border-radius: 9px;
  font-size: 15px;
  font-weight: 700;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--ink2);
  cursor: pointer;
  transition: all .15s;
}

.plan-btn:hover {
  background: var(--btn-hover, var(--ink));
  border-color: var(--btn-hover, var(--ink));
  color: #fff;
}

.plan-card.current .plan-btn {
  border-color: rgba(255, 255, 255, .25);
  background: rgba(255, 255, 255, .12);
  color: #fff;
}

/* ───────────────────────────────
   LOGIN PAGE
─────────────────────────────── */
.login-outer {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 40px 20px;
  width: 100%;
}

.login-box {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 40px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, .08);
}

.login-logo {
  width: 52px;
  height: 52px;
  background: var(--ink);
  border-radius: 12px;
  margin: 0 auto 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.04em;
  text-align: center;
  margin-bottom: 6px;
}

.login-sub {
  font-size: 14px;
  color: var(--ink3);
  text-align: center;
  margin-bottom: 30px;
  line-height: 1.55;
}

.login-input {
  display: block;
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--ink);
  outline: none;
  margin-bottom: 12px;
  transition: border-color .15s;
}

.login-input:focus {
  border-color: var(--border2);
  background: var(--surface);
}

.login-input::placeholder {
  color: var(--ink4);
}

.btn-login {
  width: 100%;
  margin-top: 2px;
  background: var(--btn-bg, var(--ink));
  color: var(--btn-text, #fff);
  border: none;
  border-radius: 10px;
  padding: 15px;
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  transition: opacity .15s;
  margin-bottom: 18px;
}

.btn-login:hover {
  background: var(--btn-hover, var(--ink));
  opacity: 1;
}

.login-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  color: var(--ink4);
  margin-bottom: 14px;
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.btn-kakao {
  width: 100%;
  background: #FEE500;
  color: #3C1E1E;
  border: none;
  border-radius: 10px;
  padding: 15px;
  font-size: 16px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: opacity .15s;
}

.btn-kakao:hover {
  opacity: .88;
}

.login-foot {
  font-size: 13.5px;
  color: var(--ink3);
  text-align: center;
  margin-top: 22px;
}

.login-foot span {
  color: var(--ink);
  font-weight: 700;
  cursor: pointer;
}

/* ───────────────────────────────
   ANIMATIONS
─────────────────────────────── */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.spin {
  display: inline-block;
  animation: spin .8s linear infinite;
}

/* ───────────────────────────────
   MOBILE RESPONSIVE (≤ 768px)
─────────────────────────────── */
/* 모바일 햄버거 버튼 */
.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 300;
}

/* ─── 24. 크레딧 소진 안내 모달 ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.2s, visibility 0.2s;
}

.modal-overlay.hidden {
  opacity: 0;
  visibility: hidden;
}

.modal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 90%;
  max-width: 400px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  transform: translateY(0);
  transition: transform 0.2s;
}

.modal-overlay.hidden .modal-card {
  transform: translateY(15px);
}

.modal-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(182, 162, 114, 0.1);
  /* primary color 연하게 */
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.modal-desc {
  font-size: 14px;
  color: var(--ink2);
  line-height: 1.5;
  margin-bottom: 24px;
}

.modal-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.modal-buttons .btn {
  flex: 1;
}

/* 사이드바 오버레이 */
#sb-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .35);
  z-index: 199;
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

  .sidebar {
    transform: translateX(-100%);
    transition: transform .25s ease;
    z-index: 200;
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  .main {
    margin-left: 0 !important;
    padding-top: 56px;
    /* 햄버거 버튼 공간 */
  }

  /* 패딩 축소 */
  .dash-wrap,
  .tool-page,
  .chat-page,
  .archive-page,
  .mypage-wrap {
    padding: 24px 18px 60px;
  }

  .form-card {
    padding: 22px;
  }

  .tool-form {
    padding: 18px;
  }

  .chat-intro,
  .chat-input-area {
    padding: 18px;
  }

  /* 그리드 1열 */
  .sol-grid,
  .tip-grid,
  .fav-grid,
  .usage-cards,
  .plan-grid {
    grid-template-columns: 1fr;
  }

  .dash-usage-row {
    flex-direction: column;
  }

  .dash-usage-item {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  /* 채팅 입력 세로 */
  .chat-input-row {
    flex-direction: column;
  }

  .chat-send-btn {
    width: 100%;
    justify-content: center;
    padding: 14px;
  }
}

/* ───────────────────────────────
   REFERRAL PAGE
─────────────────────────────── */
.ref-stats-row {
  display: flex;
  gap: 12px;
  max-width: 520px;
  margin-bottom: 20px;
}

.ref-stat-card {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 22px 26px;
  text-align: center;
}

.ref-stat-card.ref-stat-accent {
  background: var(--btn-bg, var(--ink));
  border-color: var(--btn-bg, var(--ink));
}

.ref-stat-card.ref-stat-accent .ref-stat-val,
.ref-stat-card.ref-stat-accent .ref-stat-label {
  color: #fff;
}

.ref-stat-val {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -.04em;
  margin-bottom: 4px;
}

.ref-stat-label {
  font-size: 13px;
  color: var(--ink3);
  font-weight: 600;
}

.ref-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 30px 32px 26px;
  max-width: 520px;
  margin-bottom: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ref-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink3);
}

.ref-code {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: .15em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.ref-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 9px;
  padding: 11px 20px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink2);
  cursor: pointer;
  transition: all .15s;
  font-family: inherit;
}

.btn-copy:hover {
  background: var(--btn-bg, var(--ink));
  border-color: var(--btn-bg, var(--ink));
  color: #fff;
}

.btn-copy.btn-copy-link {
  background: var(--btn-bg, var(--ink));
  border-color: var(--btn-bg, var(--ink));
  color: #fff;
}

.btn-copy.btn-copy-link:hover {
  background: var(--btn-hover, #333);
  border-color: var(--btn-hover, #333);
}

.ref-note {
  font-size: 13px;
  color: var(--ink3);
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: 4px;
}

.ref-note strong {
  color: var(--accent, #16A34A);
  font-weight: 700;
}

/* DATA TABLE */
.data-table-wrap {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th {
  text-align: left;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--ink3);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--ink2);
  vertical-align: middle;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr:hover td {
  background: var(--surface2);
}

.ref-loading {
  text-align: center;
  padding: 30px 0;
  color: var(--ink3);
}

/* badge */
.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 99px;
  line-height: 1.5;
}

.badge-chat {
  background: #DCFCE7;
  color: #15803D;
}