:root {
  --bg: #f6f9fb;
  --surface: #ffffff;
  --surface-soft: #eef8f7;
  --ink: #17202a;
  --muted: #647383;
  --line: #dfe8ee;
  --mint: #10bfa6;
  --mint-deep: #078b79;
  --coral: #ff6b66;
  --coral-soft: #fff0ef;
  --blue: #3b82f6;
  --blue-soft: #eaf2ff;
  --amber: #f59e0b;
  --amber-soft: #fff6df;
  --violet: #7c3aed;
  --violet-soft: #f2edff;
  --shadow: 0 18px 45px rgba(30, 54, 72, 0.12);
  --radius: 8px;
  color-scheme: light;
  font-family:
    Inter, "Pretendard", "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    linear-gradient(135deg, rgba(16, 191, 166, 0.1), transparent 32%),
    linear-gradient(225deg, rgba(255, 107, 102, 0.1), transparent 28%),
    var(--bg);
  color: var(--ink);
  letter-spacing: 0;
}

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

button {
  cursor: pointer;
  touch-action: manipulation;
}

.app-shell {
  min-height: 100vh;
}

.login-screen {
  min-height: 100vh;
  max-width: 100vw;
  overflow-x: hidden;
  display: grid;
  grid-template-columns: minmax(360px, 0.9fr) minmax(460px, 1.1fr);
  background: var(--surface);
}

.login-visual {
  position: relative;
  overflow: hidden;
  min-width: 0;
  padding: 32px;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(180deg, rgba(8, 22, 34, 0.1), rgba(8, 22, 34, 0.76)),
    url("https://images.unsplash.com/photo-1552664730-d307ca884978?auto=format&fit=crop&w=1400&q=85") center / cover;
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 20px;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--mint), var(--blue));
  color: #fff;
  font-size: 15px;
  font-weight: 900;
  box-shadow: 0 10px 28px rgba(16, 191, 166, 0.24);
}

.login-visual h1 {
  max-width: 540px;
  margin: 0 0 16px;
  font-size: 58px;
  line-height: 1.03;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.login-visual p {
  max-width: 520px;
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.75;
  font-size: 17px;
  overflow-wrap: anywhere;
}

.login-panel {
  min-width: 0;
  padding: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  min-width: 0;
  width: min(100%, 500px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.login-card h2 {
  margin: 0 0 10px;
  font-size: 28px;
}

.login-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.auth-stack {
  display: grid;
  gap: 14px;
  margin: 28px 0;
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  margin-bottom: 24px;
  border-radius: var(--radius);
  background: #edf3f5;
}

.auth-tab {
  min-height: 38px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-weight: 900;
}

.auth-tab.active {
  background: #fff;
  color: var(--mint-deep);
  box-shadow: 0 5px 16px rgba(26, 45, 59, 0.1);
}

.demo-login-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.form-alert {
  border-radius: var(--radius);
  background: var(--coral-soft);
  color: #9f312d;
  padding: 12px;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.45;
}

.form-alert.success {
  background: var(--surface-soft);
  color: var(--mint-deep);
}

.privacy-box {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfdfe;
  padding: 14px;
}

.privacy-box strong {
  font-size: 14px;
}

.privacy-box > span {
  color: var(--muted);
  line-height: 1.55;
  font-size: 13px;
}

.check-row {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 9px;
  color: var(--ink);
  line-height: 1.45;
  font-size: 13px;
  font-weight: 800;
}

.check-row input {
  width: 18px;
  height: 18px;
  margin: 1px 0 0;
  accent-color: var(--mint);
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 10px 12px;
  color: var(--ink);
  outline: none;
}

.field textarea {
  resize: vertical;
  min-height: 88px;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--mint);
  box-shadow: 0 0 0 3px rgba(16, 191, 166, 0.14);
}

.button {
  min-height: 40px;
  border: 0;
  border-radius: var(--radius);
  padding: 9px 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 800;
  color: var(--ink);
  background: #eef3f6;
}

.button svg {
  width: 17px;
  height: 17px;
  stroke-width: 2.2;
}

.button.primary {
  color: #fff;
  background: linear-gradient(135deg, var(--mint), var(--blue));
  box-shadow: 0 12px 26px rgba(16, 191, 166, 0.22);
}

.button.coral {
  color: #fff;
  background: var(--coral);
}

.button.ghost {
  border: 1px solid var(--line);
  background: #fff;
}

.button.icon-only {
  width: 40px;
  padding: 0;
}

.button:focus-visible,
.auth-tab:focus-visible,
.nav-button:focus-visible,
.role-tab:focus-visible,
.view-pill:focus-visible {
  outline: 3px solid rgba(59, 130, 246, 0.22);
  outline-offset: 2px;
}

.microsoft-button {
  width: 100%;
  min-height: 48px;
  border: 1px solid #cfd8df;
  background: #fff;
  color: #20252b;
}

.ms-logo {
  width: 18px;
  height: 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

.ms-logo span:nth-child(1) {
  background: #f35325;
}
.ms-logo span:nth-child(2) {
  background: #81bc06;
}
.ms-logo span:nth-child(3) {
  background: #05a6f0;
}
.ms-logo span:nth-child(4) {
  background: #ffba08;
}

.login-note {
  border-radius: var(--radius);
  background: var(--blue-soft);
  color: #23415f;
  padding: 14px;
  line-height: 1.55;
  font-size: 14px;
  overflow-wrap: anywhere;
}

.main-layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 248px 1fr;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
  border-right: 1px solid var(--line);
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 6px;
}

.brand-text strong {
  display: block;
  font-size: 18px;
}

.brand-text span {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.role-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  background: #edf3f5;
  border-radius: var(--radius);
}

.role-tab {
  min-height: 34px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.role-tab.active {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 5px 16px rgba(26, 45, 59, 0.1);
}

.nav-list {
  display: grid;
  gap: 7px;
}

.nav-button {
  width: 100%;
  min-height: 42px;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  font-weight: 800;
  text-align: left;
}

.nav-button svg {
  width: 18px;
  height: 18px;
}

.nav-button.active {
  color: var(--mint-deep);
  background: var(--surface-soft);
}

.nav-button .badge {
  margin-left: auto;
}

.sidebar-footer {
  margin-top: auto;
  display: grid;
  gap: 12px;
}

.profile-mini {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.permission-note {
  min-height: 44px;
  border-radius: var(--radius);
  background: var(--surface-soft);
  color: var(--mint-deep);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.35;
}

.permission-note svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
}

.avatar {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 900;
}

.avatar.mint {
  background: var(--surface-soft);
  color: var(--mint-deep);
}

.avatar.coral {
  background: var(--coral-soft);
  color: var(--coral);
}

.avatar.amber {
  background: var(--amber-soft);
  color: #9a6200;
}

.avatar.violet {
  background: var(--violet-soft);
  color: var(--violet);
}

.profile-copy strong,
.profile-copy span {
  display: block;
}

.profile-copy strong {
  font-size: 14px;
}

.profile-copy span {
  color: var(--muted);
  font-size: 12px;
  margin-top: 3px;
}

.content {
  min-width: 0;
  padding: 24px;
}

.topbar {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.page-title h1 {
  margin: 0;
  font-size: 32px;
  line-height: 1.15;
}

.page-title p {
  margin: 7px 0 0;
  color: var(--muted);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.status-pill,
.badge,
.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 999px;
  font-weight: 800;
  line-height: 1;
}

.status-pill {
  min-height: 32px;
  padding: 8px 11px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.status-pill svg {
  width: 15px;
  height: 15px;
}

.badge {
  min-width: 24px;
  min-height: 24px;
  padding: 5px 7px;
  background: var(--coral);
  color: #fff;
  font-size: 12px;
}

.tag {
  min-height: 26px;
  padding: 7px 9px;
  font-size: 12px;
  background: #eef3f6;
  color: var(--muted);
}

.tag.mint {
  color: var(--mint-deep);
  background: var(--surface-soft);
}

.tag.coral {
  color: var(--coral);
  background: var(--coral-soft);
}

.tag.blue {
  color: var(--blue);
  background: var(--blue-soft);
}

.tag.amber {
  color: #9a6200;
  background: var(--amber-soft);
}

.tag.violet {
  color: var(--violet);
  background: var(--violet-soft);
}

.grid {
  display: grid;
  gap: 16px;
}

.dashboard-grid {
  grid-template-columns: 1.6fr 0.95fr;
  align-items: start;
}

.metric-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 12px 34px rgba(40, 61, 78, 0.07);
}

.card.pad {
  padding: 18px;
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.card-title {
  margin: 0;
  font-size: 17px;
}

.card-subtitle {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.metric-card {
  padding: 16px;
  min-height: 132px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metric-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.metric-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  display: inline-grid;
  place-items: center;
}

.metric-icon svg {
  width: 20px;
  height: 20px;
}

.metric-icon.mint {
  background: var(--surface-soft);
  color: var(--mint-deep);
}

.metric-icon.coral {
  background: var(--coral-soft);
  color: var(--coral);
}

.metric-icon.blue {
  background: var(--blue-soft);
  color: var(--blue);
}

.metric-icon.amber {
  background: var(--amber-soft);
  color: #9a6200;
}

.metric-value {
  margin: 16px 0 3px;
  font-size: 30px;
  font-weight: 900;
}

.metric-label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.timeline {
  display: grid;
  gap: 10px;
}

.timeline-item,
.notification-item,
.employee-row,
.manuscript-row {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.timeline-item {
  display: grid;
  grid-template-columns: 74px 1fr auto;
  gap: 12px;
  padding: 13px;
  align-items: center;
}

.time-block {
  color: var(--mint-deep);
  font-weight: 900;
  font-size: 13px;
}

.timeline-main strong {
  display: block;
  margin-bottom: 5px;
}

.timeline-main span {
  color: var(--muted);
  font-size: 13px;
}

.schedule-toolbar {
  display: flex;
  gap: 10px;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.view-tabs {
  display: flex;
  gap: 5px;
  padding: 4px;
  border-radius: var(--radius);
  background: #edf3f5;
}

.view-pill {
  min-width: 54px;
  min-height: 34px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-weight: 900;
}

.view-pill.active {
  background: #fff;
  color: var(--ink);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(104px, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}

.calendar-cell {
  min-height: 132px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 10px;
  background: #fff;
}

.calendar-cell:nth-child(7n) {
  border-right: 0;
}

.day-name {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.day-number {
  margin: 6px 0 9px;
  font-weight: 900;
}

.event-chip {
  width: 100%;
  min-height: 30px;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  padding: 7px 8px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 800;
  color: #24505d;
  background: #eaf8f5;
  overflow-wrap: anywhere;
}

.event-chip.work {
  background: var(--blue-soft);
  color: #1f5ca8;
}

.event-chip.change {
  background: var(--coral-soft);
  color: #b23d38;
}

.event-chip.personal {
  background: var(--amber-soft);
  color: #835200;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 16px;
  align-items: start;
}

.stack {
  display: grid;
  gap: 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-grid .wide {
  grid-column: 1 / -1;
}

.notification-item {
  padding: 14px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: start;
}

.notification-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-top: 6px;
  background: var(--blue);
}

.notification-dot.alert {
  background: var(--coral);
}

.notification-dot.note {
  background: var(--mint);
}

.notification-copy strong {
  display: block;
  margin-bottom: 5px;
}

.notification-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 13px;
}

.notification-time {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.sync-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(16, 191, 166, 0.14), rgba(59, 130, 246, 0.12)),
    #fff;
}

.sync-visual {
  width: 148px;
  aspect-ratio: 1;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.92)),
    url("https://images.unsplash.com/photo-1454165804606-c3d57bc86b40?auto=format&fit=crop&w=500&q=80") center / cover;
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 18px 32px rgba(30, 54, 72, 0.14);
}

.sync-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.sync-stat {
  min-height: 92px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.68);
  padding: 12px;
}

.sync-stat strong {
  display: block;
  margin-top: 10px;
  font-size: 23px;
}

.sync-stat span {
  color: var(--muted);
  display: block;
  font-size: 12px;
  font-weight: 800;
  margin-top: 4px;
}

.progress-bar {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: #e8eef3;
  margin-top: 14px;
}

.progress-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--coral), var(--amber));
}

.manuscript-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 13px;
}

.manuscript-row strong {
  display: block;
}

.manuscript-row span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-top: 5px;
}

.employee-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 13px;
}

.row-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.employee-meta strong {
  display: block;
}

.employee-meta span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-top: 4px;
}

.empty-state {
  padding: 28px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
}

.student-home {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 16px;
  align-items: start;
}

.mobile-action-bar {
  display: none;
}

@media (max-width: 1180px) {
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .dashboard-grid,
  .student-home {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 920px) {
  .login-screen {
    grid-template-columns: minmax(0, 1fr);
  }

  .login-visual {
    min-height: 40vh;
  }

  .login-visual h1 {
    font-size: 42px;
  }

  .main-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
    padding: 14px;
  }

  .nav-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .nav-button {
    justify-content: center;
    text-align: center;
  }

  .nav-button span:not(.badge) {
    display: none;
  }

  .sidebar-footer {
    display: none;
  }

  .content {
    padding: 18px;
  }

  .two-column {
    grid-template-columns: 1fr;
  }

  .calendar-grid {
    overflow-x: auto;
    grid-template-columns: repeat(7, minmax(148px, 1fr));
  }
}

@media (max-width: 620px) {
  .login-panel,
  .login-visual {
    padding: 22px;
  }

  .login-panel {
    width: 100vw;
    padding-left: 16px;
    padding-right: 16px;
  }

  .login-card {
    width: 100%;
    max-width: calc(100vw - 32px);
    padding: 22px;
  }

  .login-visual h1 {
    font-size: 29px;
    line-height: 1.08;
    overflow-wrap: anywhere;
  }

  .login-visual p {
    font-size: 14px;
  }

  .login-card h2 {
    font-size: 24px;
    line-height: 1.2;
    overflow-wrap: anywhere;
  }

  .login-note {
    font-size: 13px;
  }

  .topbar,
  .card-header,
  .sync-panel,
  .schedule-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .top-actions {
    justify-content: flex-start;
  }

  .top-actions .status-pill {
    flex: 1 1 auto;
  }

  .button,
  .role-tab,
  .view-pill,
  .nav-button {
    min-height: 44px;
  }

  .sync-panel {
    grid-template-columns: 1fr;
  }

  .sync-visual {
    width: 100%;
    aspect-ratio: 3 / 1.35;
  }

  .metric-grid,
  .form-grid,
  .demo-login-grid,
  .sync-stat-grid {
    grid-template-columns: 1fr;
  }

  .page-title h1 {
    font-size: 26px;
  }

  .timeline-item,
  .notification-item,
  .employee-row,
  .manuscript-row {
    grid-template-columns: 1fr;
  }

  .notification-time {
    white-space: normal;
  }

  .nav-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}