/* ==================== APPLE DESIGN SYSTEM ==================== */

:root {
  /* Apple Color System */
  --color-black: #000000;
  --color-white: #ffffff;
  --color-gray-bg: #f5f5f7;
  --color-near-black: #1d1d1f;
  --color-blue: #0071e3;
  --color-blue-link: #0066cc;
  --color-blue-bright: #2997ff;
  --color-dark-surface-1: #272729;
  --color-dark-surface-2: #262628;
  --color-card: #ffffff;
  --color-line: rgba(0, 0, 0, 0.06);
  --color-text-secondary: rgba(0, 0, 0, 0.48);
  --color-text-tertiary: rgba(0, 0, 0, 0.8);
  --color-text-white-secondary: rgba(255, 255, 255, 0.48);
  --color-text-white-tertiary: rgba(255, 255, 255, 0.72);
  --color-pill-a-bg: #ffe8df;
  --color-pill-a-text: #a33b3b;
  --color-pill-b-bg: #fff1cf;
  --color-pill-b-text: #a86418;
  --color-pill-c-bg: #e4f4ed;
  --color-pill-c-text: #23765a;
  --color-pill-d-bg: #edf0f2;
  --color-pill-d-text: #5c6670;
  --color-hover-bg: #f8fafb;

  /* Apple Typography */
  --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-text: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;

  /* Apple Spacing */
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-7: 7px;
  --space-8: 8px;
  --space-9: 9px;
  --space-10: 10px;
  --space-12: 12px;
  --space-14: 14px;
  --space-16: 16px;
  --space-18: 18px;
  --space-20: 20px;
  --space-22: 22px;
  --space-24: 24px;
  --space-28: 28px;
  --space-40: 40px;
  --space-48: 48px;
  --space-56: 56px;

  /* Apple Border Radius */
  --radius-micro: 5px;
  --radius-standard: 8px;
  --radius-comfortable: 11px;
  --radius-large: 12px;
  --radius-pill: 980px;

  /* Apple Shadows */
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.15);

  /* Apple Focus */
  --focus-ring: 2px solid var(--color-blue);
}

/* ==================== GLOBAL RESET ==================== */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--color-near-black);
  background: var(--color-gray-bg);
  font-family: var(--font-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  margin: 0;
  letter-spacing: -0.02em;
}

p {
  margin: 0;
}

a {
  color: var(--color-blue-link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

button {
  cursor: pointer;
}

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

/* ==================== LOGIN PAGE ==================== */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000000;
  padding: var(--space-20);
}

.login-container {
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 2;
}

.login-card {
  background: var(--color-near-black);
  border-radius: 18px;
  padding: var(--space-48) var(--space-40);
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
}

.login-brand {
  text-align: center;
  margin-bottom: var(--space-40);
}

.login-brand .brand-mark {
  width: 56px;
  height: 56px;
  background: var(--color-blue);
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: var(--space-16);
  font-family: var(--font-display);
}

.login-brand h1 {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
}

.login-brand p {
  font-size: 13px;
  color: var(--color-text-white-secondary);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-18);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
}

.form-group label {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-white-secondary);
  letter-spacing: 0.02em;
}

.form-group input {
  width: 100%;
  height: 46px;
  padding: 0 var(--space-16);
  background: var(--color-dark-surface-1);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: var(--color-white);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input::placeholder {
  color: rgba(255, 255, 255, 0.24);
}

.form-group input:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.2);
}

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  cursor: pointer;
  color: var(--color-text-white-secondary);
}

.checkbox-label input {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--color-blue);
}

.forgot-link {
  color: var(--color-blue-bright);
  text-decoration: none;
  font-size: 13px;
}

.forgot-link:hover {
  text-decoration: underline;
}

.login-btn {
  width: 100%;
  height: 48px;
  background: var(--color-blue);
  color: var(--color-white);
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  margin-top: var(--space-4);
}

.login-btn:hover {
  background: #0077ed;
}

.login-btn:active {
  transform: scale(0.98);
}

.login-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.login-btn.loading {
  position: relative;
  color: transparent;
}

.login-btn.loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.error-msg {
  text-align: center;
  color: #ff6b6b;
  font-size: 13px;
  padding: var(--space-10);
  background: rgba(255, 107, 107, 0.12);
  border-radius: var(--radius-micro);
  margin: 0;
}

.error-msg.hidden {
  display: none;
}

.login-footer {
  margin-top: var(--space-28);
  padding-top: var(--space-20);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.login-footer p {
  color: var(--color-text-white-secondary);
  font-size: 12px;
}

.login-backdrop {
  display: none;
}

/* ==================== APP SHELL ==================== */

.app-shell {
  display: grid;
  grid-template-columns: 288px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  border-right: 1px solid var(--color-line);
  background: var(--color-white);
  padding: var(--space-22) var(--space-18);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand {
  display: flex;
  gap: var(--space-12);
  align-items: center;
  padding-bottom: var(--space-24);
  border-bottom: 1px solid var(--color-line);
  margin-bottom: var(--space-22);
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-standard);
  color: var(--color-white);
  background: var(--color-blue);
  font-weight: 700;
  font-size: 16px;
  font-family: var(--font-display);
  flex-shrink: 0;
}

.brand-info {
  flex: 1;
}

.brand h1 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-near-black);
  letter-spacing: -0.01em;
}

.brand p,
.topbar p,
.section-head p,
.field span {
  color: var(--color-text-secondary);
  font-size: 12px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--space-10);
  padding: var(--space-12) var(--space-14);
  background: var(--color-gray-bg);
  border-radius: var(--radius-standard);
  margin-bottom: var(--space-20);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-blue);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  flex-shrink: 0;
}

.user-details {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.user-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-near-black);
}

.user-role {
  font-size: 11px;
  color: var(--color-text-secondary);
}

.logout-btn {
  width: 32px;
  height: 32px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-micro);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.logout-btn:hover {
  background: var(--color-white);
  border-color: #ff6b6b;
  color: #ff6b6b;
}

.field {
  display: grid;
  gap: var(--space-7);
  margin-bottom: var(--space-14);
}

.field span {
  color: var(--color-near-black);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-standard);
  background: var(--color-white);
  color: var(--color-near-black);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input,
select {
  height: 38px;
  padding: 0 var(--space-10);
  font-size: 14px;
}

input::placeholder {
  color: var(--color-text-secondary);
}

input:focus,
select:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12);
}

.switch-row {
  display: grid;
  gap: var(--space-10);
  margin: var(--space-18) 0;
  color: var(--color-near-black);
  font-size: 13px;
}

.switch-row label {
  display: flex;
  gap: var(--space-8);
  align-items: center;
  cursor: pointer;
}

.switch-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-blue);
}

button,
.link-btn {
  height: 38px;
  padding: 0 var(--space-14);
  border: 0;
  border-radius: var(--radius-standard);
  background: var(--color-blue);
  color: var(--color-white);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  white-space: nowrap;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.2s;
}

button:hover,
.link-btn:hover {
  background: #0077ed;
}

.secondary-btn {
  width: 100%;
  background: var(--color-gray-bg);
  color: var(--color-near-black);
  border: none;
}

.secondary-btn:hover {
  background: #e8eaed;
}

/* ==================== WORKSPACE ==================== */

.workspace {
  padding: var(--space-22);
  min-width: 0;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: var(--space-18);
  align-items: center;
  margin-bottom: var(--space-16);
  padding: var(--space-22) var(--space-22);
  background: var(--color-black);
  border-radius: var(--radius-large);
}

.topbar h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.topbar p {
  font-size: 12px;
  color: var(--color-text-white-secondary);
  margin-top: var(--space-4);
}

.actions {
  display: flex;
  gap: var(--space-10);
}

.actions button {
  height: 38px;
  padding: 0 var(--space-16);
  background: var(--color-blue);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 400;
}

.actions .link-btn {
  background: transparent;
  color: var(--color-blue-bright);
  border: 1px solid var(--color-blue-bright);
  border-radius: var(--radius-pill);
}

.actions .link-btn:hover {
  background: rgba(41, 151, 255, 0.08);
  text-decoration: none;
}

/* ==================== METRICS ==================== */

.metrics {
  display: grid;
  grid-template-columns: repeat(5, minmax(150px, 1fr));
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.metric {
  background: var(--color-card);
  border: none;
  border-radius: var(--radius-standard);
  padding: var(--space-16);
  box-shadow: var(--shadow-card);
}

.metric span {
  color: var(--color-text-secondary);
  font-size: 12px;
  font-weight: 500;
}

.metric strong {
  display: block;
  font-size: 28px;
  font-weight: 600;
  color: var(--color-near-black);
  margin-top: var(--space-6);
  letter-spacing: -0.02em;
}

/* ==================== CONTENT GRID ==================== */

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: var(--space-16);
  align-items: start;
}

.lead-panel,
.assistant-panel {
  background: var(--color-card);
  border: none;
  border-radius: var(--radius-standard);
  min-width: 0;
  box-shadow: var(--shadow-card);
}

.section-head {
  min-height: 62px;
  display: flex;
  justify-content: space-between;
  gap: var(--space-14);
  align-items: center;
  padding: var(--space-14) var(--space-16);
  border-bottom: 1px solid var(--color-line);
}

.section-head h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-near-black);
}

.section-head p {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.compact {
  min-height: 58px;
}

.segmented {
  display: inline-flex;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-standard);
  padding: 3px;
  background: var(--color-gray-bg);
}

.segmented button {
  height: 30px;
  padding: 0 var(--space-14);
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-micro);
  font-size: 13px;
  font-weight: 400;
  transition: all 0.2s;
}

.segmented button.active {
  color: var(--color-white);
  background: var(--color-blue);
}

/* ==================== TABLE ==================== */

.table-wrap {
  overflow: auto;
  max-height: calc(100vh - 230px);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 980px;
}

th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--color-hover-bg);
  color: var(--color-text-secondary);
  font-size: 11px;
  font-weight: 600;
  text-align: left;
  padding: var(--space-10) var(--space-14);
  border-bottom: 1px solid var(--color-line);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

td {
  padding: var(--space-12) var(--space-14);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  font-size: 13px;
  color: var(--color-near-black);
  vertical-align: top;
}

tbody tr {
  cursor: pointer;
  transition: background 0.15s;
}

tbody tr:hover {
  background: var(--color-hover-bg);
}

tbody tr.selected {
  background: rgba(0, 113, 227, 0.06);
}

/* ==================== PILLS ==================== */

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px var(--space-8);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.pill-a {
  background: var(--color-pill-a-bg);
  color: var(--color-pill-a-text);
}

.pill-b {
  background: var(--color-pill-b-bg);
  color: var(--color-pill-b-text);
}

.pill-c {
  background: var(--color-pill-c-bg);
  color: var(--color-pill-c-text);
}

.pill-d {
  background: var(--color-pill-d-bg);
  color: var(--color-pill-d-text);
}

.muted {
  color: var(--color-text-secondary);
  font-size: 12px;
}

/* ==================== ASSISTANT PANEL ==================== */

.assistant-panel {
  position: sticky;
  top: var(--space-22);
}

.detail-card {
  padding: var(--space-16);
  display: grid;
  gap: var(--space-12);
}

.empty {
  min-height: 150px;
  display: grid;
  place-items: center;
  color: var(--color-text-secondary);
  background: var(--color-hover-bg);
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-standard);
}

.detail-title {
  display: grid;
  gap: var(--space-6);
}

.detail-title strong {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-near-black);
  line-height: 1.35;
}

.facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.fact {
  padding: var(--space-9);
  background: var(--color-hover-bg);
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: var(--radius-standard);
}

.fact span {
  display: block;
  color: var(--color-text-secondary);
  font-size: 11px;
}

.fact strong {
  display: block;
  margin-top: var(--space-4);
  font-size: 13px;
  color: var(--color-near-black);
}

.generator {
  display: grid;
  grid-template-columns: 1fr 92px;
  gap: var(--space-10);
  align-items: end;
  padding: 0 var(--space-16) var(--space-14);
}

.generator .field {
  margin-bottom: 0;
}

textarea {
  width: calc(100% - 32px);
  height: 210px;
  margin: 0 var(--space-16) var(--space-16);
  padding: var(--space-12);
  resize: vertical;
  line-height: 1.55;
  font-size: 13px;
  background: var(--color-hover-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-standard);
  color: var(--color-near-black);
  outline: none;
  transition: border-color 0.2s;
}

textarea:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12);
}

/* ==================== FUNNEL ==================== */

.funnel-view {
  padding: var(--space-18);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-12);
}

.funnel-stage {
  min-height: 132px;
  border-radius: var(--radius-standard);
  border: 1px solid var(--color-line);
  background: linear-gradient(180deg, var(--color-white), #f7fbfc);
  padding: var(--space-14);
  display: grid;
  align-content: space-between;
}

.funnel-stage strong {
  color: var(--color-near-black);
  font-weight: 600;
}

.funnel-stage span {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-near-black);
}

/* ==================== PAGINATION ==================== */

.hidden {
  display: none;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding: var(--space-16);
  border-top: 1px solid var(--color-line);
}

.pagination button {
  min-width: 38px;
  height: 38px;
  padding: 0 var(--space-12);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-standard);
  background: var(--color-white);
  color: var(--color-near-black);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s;
}

.pagination button:hover:not(:disabled) {
  background: var(--color-hover-bg);
  border-color: var(--color-blue);
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination button.active {
  background: var(--color-blue);
  color: var(--color-white);
  border-color: var(--color-blue);
}

.pagination .info {
  color: var(--color-text-secondary);
  font-size: 13px;
  margin: 0 var(--space-12);
}

.pagination .page-size-select {
  width: auto;
  height: 38px;
  padding: 0 var(--space-8);
  margin-left: var(--space-12);
}

/* ==================== RESPONSIVE ==================== */

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
    height: auto;
    overflow: visible;
  }

  .content-grid,
  .metrics {
    grid-template-columns: 1fr;
  }

  .assistant-panel {
    position: static;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-14);
  }

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

@media (max-width: 640px) {
  .topbar h2 {
    font-size: 20px;
  }

  .metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .funnel-view {
    grid-template-columns: 1fr 1fr;
  }

  .segmented {
    width: 100%;
    justify-content: center;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-10);
  }
}