/* ─── Reset & Variables ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0a0b0e;
  --bg1:       #0f1015;
  --bg2:       #14161d;
  --bg3:       #1b1e27;
  --border:    #222530;
  --border2:   #2a2e3d;
  --text:      #e2e5f0;
  --text2:     #8890a8;
  --text3:     #4e5470;
  --accent:    #4fff91;
  --accent2:   #00d4ff;
  --danger:    #ff4e6a;
  --warning:   #ffb340;
  --red:       #ff4e6a;
  --green:     #4fff91;
  --font-mono: 'Space Mono', monospace;
  --font-sans: 'DM Sans', sans-serif;
  --radius:    8px;
  --radius-lg: 14px;
  --shadow:    0 4px 24px rgba(0,0,0,.5);
}

html, body { height: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  overflow: hidden;
}

/* ─── Auth Screen ───────────────────────────────────────────────────────── */
.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.auth-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.auth-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79,255,145,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,255,145,.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.auth-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(79,255,145,.08) 0%, transparent 70%);
  pointer-events: none;
}

.auth-card {
  position: relative;
  background: var(--bg1);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  padding: 40px 44px;
  width: 420px;
  box-shadow: 0 0 80px rgba(0,0,0,.8), 0 0 1px var(--accent);
  animation: fadeUp .4s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}

.logo-icon { font-size: 24px; }

.auth-sub {
  color: var(--text3);
  font-size: 13px;
  margin-bottom: 28px;
  font-family: var(--font-mono);
}

.auth-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg);
  border-radius: var(--radius);
  padding: 4px;
  margin-bottom: 28px;
}

.tab-btn {
  flex: 1;
  padding: 8px;
  border: none;
  background: transparent;
  color: var(--text2);
  font-family: var(--font-mono);
  font-size: 13px;
  cursor: pointer;
  border-radius: 6px;
  transition: all .2s;
}
.tab-btn.active {
  background: var(--bg3);
  color: var(--accent);
  box-shadow: 0 0 12px rgba(79,255,145,.1);
}

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

.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: .1em;
}
.field input {
  background: var(--bg);
  border: 1px solid var(--border2);
  color: var(--text);
  padding: 11px 14px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,255,145,.1);
}
.field input::placeholder { color: var(--text3); }

.btn-primary {
  padding: 12px 20px;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all .2s;
  width: 100%;
}
.btn-primary:hover { background: #6fffa6; box-shadow: 0 0 20px rgba(79,255,145,.3); }
.btn-primary:active { transform: scale(.98); }
.btn-primary:disabled { opacity: .4; cursor: not-allowed; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--text2);
  padding: 6px 14px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: all .2s;
}
.btn-ghost:hover { border-color: var(--danger); color: var(--danger); }

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text3);
  font-size: 16px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: color .2s;
}
.btn-icon:hover { color: var(--text); }

.auth-error {
  background: rgba(255,78,106,.1);
  border: 1px solid rgba(255,78,106,.3);
  color: var(--danger);
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  font-family: var(--font-mono);
}

/* ─── App Layout ─────────────────────────────────────────────────────────── */
.app-screen {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.sidebar {
  width: 220px;
  min-width: 220px;
  background: var(--bg1);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 24px 16px;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  padding: 8px 12px;
  margin-bottom: 32px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--text2);
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  transition: all .2s;
}
.nav-item svg { width: 16px; height: 16px; flex-shrink: 0; }
.nav-item:hover { background: var(--bg2); color: var(--text); }
.nav-item.active {
  background: rgba(79,255,145,.08);
  color: var(--accent);
  border: 1px solid rgba(79,255,145,.15);
}

.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.sidebar-footer span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text3);
}

/* ─── Main Content ────────────────────────────────────────────────────────── */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 32px;
  background: var(--bg);
}
.main-content::-webkit-scrollbar { width: 4px; }
.main-content::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 4px; }

.view.hidden { display: none; }

.view-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
}
.view-header .btn-primary { width: auto; padding: 10px 20px; }

.view-title {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.view-subtitle {
  font-size: 13px;
  color: var(--text3);
  font-family: var(--font-mono);
}

/* ─── Stats Grid ─────────────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  transition: border-color .2s;
}
.stat-card:hover { border-color: var(--border2); }

.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text3);
  margin-bottom: 8px;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
}

/* ─── Assets Table ───────────────────────────────────────────────────────── */
.table-card {
  background: var(--bg1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.table-header {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1fr 1.5fr 1fr 80px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text3);
}

.assets-list { min-height: 100px; }

.asset-row {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1fr 1.5fr 1fr 80px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  align-items: center;
  transition: background .15s;
  animation: fadeIn .25s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}
.asset-row:hover { background: var(--bg2); }
.asset-row:last-child { border-bottom: none; }

.asset-info { display: flex; align-items: center; gap: 12px; }

.asset-icon {
  width: 36px;
  height: 36px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
}

.asset-name-wrap { display: flex; flex-direction: column; }
.asset-name { font-size: 14px; font-weight: 500; }
.asset-symbol {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text3);
  text-transform: uppercase;
}

.mono { font-family: var(--font-mono); font-size: 13px; }
.green { color: var(--green); }
.red   { color: var(--red); }

.row-actions { display: flex; gap: 6px; justify-content: flex-end; }

.btn-sm {
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .15s;
}
.btn-sm.edit {
  background: transparent;
  border-color: var(--border2);
  color: var(--text2);
}
.btn-sm.edit:hover { border-color: var(--accent2); color: var(--accent2); }
.btn-sm.del {
  background: transparent;
  border-color: transparent;
  color: var(--text3);
}
.btn-sm.del:hover { border-color: var(--danger); color: var(--danger); }

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px;
  color: var(--text3);
  gap: 12px;
}
.empty-icon {
  font-size: 32px;
  color: var(--border2);
}

/* ─── History View ───────────────────────────────────────────────────────── */
.period-selector {
  display: flex;
  gap: 4px;
  background: var(--bg1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
}

.period-btn {
  padding: 7px 14px;
  border: none;
  background: transparent;
  color: var(--text3);
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  border-radius: 6px;
  transition: all .2s;
}
.period-btn.active {
  background: var(--bg3);
  color: var(--accent);
}
.period-btn:hover:not(.active) { color: var(--text2); }

.chart-card {
  background: var(--bg1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.chart-source-toggle {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}

.source-btn {
  padding: 7px 16px;
  border: 1px solid var(--border2);
  background: transparent;
  color: var(--text3);
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  border-radius: 6px;
  transition: all .2s;
}
.source-btn.active {
  background: rgba(79,255,145,.08);
  border-color: rgba(79,255,145,.3);
  color: var(--accent);
}
.source-btn:hover:not(.active) { color: var(--text2); border-color: var(--border2); }

.chart-wrap {
  position: relative;
  height: 420px;
}

.chart-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text3);
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--bg1);
}
.chart-loading.hidden { display: none; }

/* ─── Modal ──────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
  animation: fadeOverlay .2s ease;
}
@keyframes fadeOverlay {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.modal {
  background: var(--bg1);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 440px;
  box-shadow: var(--shadow);
  animation: slideUp .25s ease;
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px) scale(.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.modal-header h2 {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
}

.search-wrap { position: relative; }

.search-results {
  position: absolute;
  top: calc(100% + 4px);
  left: 0; right: 0;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  z-index: 10;
  overflow: hidden;
  box-shadow: var(--shadow);
  max-height: 240px;
  overflow-y: auto;
}
.search-results::-webkit-scrollbar { width: 4px; }
.search-results::-webkit-scrollbar-thumb { background: var(--border2); }

.search-item {
  padding: 12px 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: background .15s;
}
.search-item:hover { background: var(--bg3); }
.search-item-sym {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  min-width: 50px;
}
.search-item-name { font-size: 14px; color: var(--text); }

.selected-coin {
  background: var(--bg);
  border: 1px solid rgba(79,255,145,.2);
  border-radius: var(--radius);
  padding: 12px 16px;
}
.coin-badge { display: flex; align-items: center; gap: 12px; }
.coin-symbol { font-family: var(--font-mono); font-weight: 700; color: var(--accent); }
.coin-name { color: var(--text2); font-size: 14px; }

/* ─── Utilities ──────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

.loading-spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid var(--border2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Admin / Users view additions ──────────────────────────────────────── */
.sidebar-user-info {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.role-badge {
  background: rgba(79,255,145,.12);
  border: 1px solid rgba(79,255,145,.25);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: 2px 7px;
  border-radius: 20px;
}

.user-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1fr;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  align-items: center;
  transition: background .15s;
  animation: fadeIn .25s ease;
}
.user-row:hover { background: var(--bg2); }
.user-row:last-child { border-bottom: none; }

.user-row .mono { font-size: 13px; }

.role-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid;
}
.role-pill.admin {
  background: rgba(79,255,145,.1);
  border-color: rgba(79,255,145,.25);
  color: var(--accent);
}
.role-pill.user {
  background: rgba(136,144,168,.08);
  border-color: rgba(136,144,168,.2);
  color: var(--text3);
}

.row-actions { display: flex; gap: 5px; justify-content: flex-end; flex-wrap: wrap; }

.btn-sm.promote { border-color: transparent; color: var(--text3); }
.btn-sm.promote:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm.demote { border-color: transparent; color: var(--text3); }
.btn-sm.demote:hover { border-color: var(--warning); color: var(--warning); }

/* ─── Invite-specific styles ─────────────────────────────────────────────── */
.token-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.token-input-wrap input { padding-right: 36px; }

.token-indicator {
  position: absolute;
  right: 12px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: background .25s;
}
.token-indicator.valid   { background: var(--green); box-shadow: 0 0 8px rgba(79,255,145,.5); }
.token-indicator.invalid { background: var(--red);   box-shadow: 0 0 8px rgba(255,78,106,.4); }
.token-indicator.checking {
  border: 2px solid var(--border2);
  border-top-color: var(--accent);
  animation: spin .6s linear infinite;
  background: transparent;
}

.invite-status-bar {
  background: rgba(79,255,145,.08);
  border: 1px solid rgba(79,255,145,.2);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 8px;
}
.invite-status-bar.error {
  background: rgba(255,78,106,.08);
  border-color: rgba(255,78,106,.2);
  color: var(--danger);
}

/* Invites table */
.invites-grid { grid-template-columns: 2fr 1.2fr 1fr 1fr 90px !important; }
.users-grid   { grid-template-columns: 2fr 1fr 1.5fr 1fr !important; }

.invite-row {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1fr 1fr 90px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  align-items: center;
  transition: background .15s;
  animation: fadeIn .25s ease;
}
.invite-row:hover { background: var(--bg2); }
.invite-row:last-child { border-bottom: none; }

.token-chip {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text2);
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 6px;
  padding: 3px 8px;
  cursor: pointer;
  transition: all .15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.token-chip:hover { border-color: var(--accent2); color: var(--accent2); }
.token-chip .chip-icon { font-size: 10px; flex-shrink: 0; }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid;
}
.status-pill.active  { background: rgba(79,255,145,.1);   border-color: rgba(79,255,145,.3);   color: var(--green); }
.status-pill.used    { background: rgba(136,144,168,.08); border-color: rgba(136,144,168,.2);  color: var(--text3); }
.status-pill.expired { background: rgba(255,78,106,.08);  border-color: rgba(255,78,106,.2);   color: var(--danger); }

/* Invite result panel (shown after generation) */
.invite-result {
  margin-top: 20px;
  border-top: 1px solid var(--border2);
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.invite-result-label {
  font-size: 13px;
  color: var(--text2);
}
.invite-link-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 10px 14px;
}
.invite-link-text {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent2);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  word-break: break-all;
}
.copy-confirm {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green);
}

/* ─── Sorting Styles ─── */
.sortable { 
  cursor: pointer; 
  user-select: none; 
  transition: color .2s; 
  position: relative;
}
.sortable:hover { color: var(--accent); }
.sortable.active-sort { color: var(--accent); font-weight: bold; }

.sortable::after { 
  content: ' ↕'; 
  font-size: 10px; 
  opacity: 0.3; 
  margin-left: 5px;
}
.sortable.active-sort::after { opacity: 1; }

/* ─── Mobile Adaptation ─────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .app-screen { flex-direction: column; }

  .sidebar {
    width: 100%;
    min-width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .sidebar-logo { margin-bottom: 0; padding: 0; }
  .sidebar-nav { flex-direction: row; gap: 8px; flex: 0; }
  .sidebar-footer, .sidebar-user-info, #change-pass-btn { display: none; } /* Скрываем лишнее на мобилках */
  
  .nav-item span { display: none; } /* Оставляем только иконки в навигации */
  .nav-item { padding: 8px; }

  .main-content { padding: 16px; }
  .stats-grid { grid-template-columns: 1fr; } /* Статистика в одну колонку */

  /* Адаптация таблицы ассетов */
  .table-header, .asset-row {
    grid-template-columns: 1.5fr 1fr 1fr 60px; /* Убираем Price и 24h на узких экранах */
  }
  .table-header span:nth-child(2), .table-header span:nth-child(5),
  .asset-row div:nth-child(2), .asset-row div:nth-child(5) {
    display: none;
  }
  
  .auth-card { width: 90%; padding: 24px; }
}