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

:root {
  --color-bg: #f2f2f7;
  --color-surface: #ffffff;
  --color-card: #ffffff;
  --color-primary: #007aff;
  --color-primary-dark: #0062cc;
  --color-primary-light: #4da3ff;
  --color-accent: #ff9500;
  --color-text: #1d1d1f;
  --color-text-secondary: #3a3a3c;
  --color-text-muted: #8e8e93;
  --color-border: rgba(60, 60, 67, 0.08);
  --color-border-light: rgba(60, 60, 67, 0.04);
  --color-success: #34c759;
  --color-error: #ff3b30;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.06);
  --nav-height: 50px;
  --header-height: 52px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top: env(safe-area-inset-top, 0px);
  --tab-bar-height: 84px;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  min-height: -webkit-fill-available;
  padding-top: calc(var(--header-height) + var(--safe-top));
  padding-bottom: calc(var(--tab-bar-height) + var(--safe-bottom));
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.main-content {
  max-width: 480px;
  margin: 0 auto;
  padding: 8px 16px calc(12px + var(--tab-bar-height));
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: calc(var(--header-height) + var(--safe-top));
  padding-top: var(--safe-top);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
  padding: 0 16px;
  max-width: 480px;
  margin: 0 auto;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header__icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: 7px;
  color: #fff;
  font-size: 15px;
}

.header__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.2px;
}

.header__balance {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--color-bg);
  padding: 4px 10px;
  border-radius: 16px;
}

.header__balance-label {
  font-size: 10px;
  color: var(--color-text-muted);
  font-weight: 600;
  letter-spacing: 0.3px;
}

.header__balance-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header__start-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: var(--color-primary);
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  transition: all 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.header__start-btn:active {
  transform: scale(0.88);
  opacity: 0.7;
}

.nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding-bottom: var(--safe-bottom);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  z-index: 100;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-around;
  align-items: flex-start;
  height: var(--tab-bar-height);
  max-width: 480px;
  margin: 0 auto;
  padding-top: 8px;
}

.nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  text-decoration: none;
  color: var(--color-text-muted);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  transition: color 0.15s;
  -webkit-tap-highlight-color: transparent;
  min-width: 48px;
  min-height: 40px;
  justify-content: center;
  position: relative;
}

.nav__item:active {
  opacity: 0.5;
}

.nav__item--active {
  color: var(--color-primary);
}

.nav__icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav__label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0;
}

.footer {
  display: none;
}

/* ===== Buttons ===== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  -webkit-tap-highlight-color: transparent;
  text-decoration: none;
  letter-spacing: -0.2px;
  -webkit-user-select: none;
  user-select: none;
}

.btn:active {
  opacity: 0.6;
  transform: scale(0.97);
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}

.btn--outline {
  background: transparent;
  border: 1.5px solid var(--color-border);
  color: var(--color-primary);
}

.btn--outline:active {
  background: var(--color-bg);
}

.btn--lg {
  width: 100%;
  padding: 14px 24px;
  font-size: 16px;
  border-radius: var(--radius-lg);
}

.btn--small {
  padding: 7px 12px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

.btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none !important;
}

/* ===== Inputs ===== */

.input {
  width: 100%;
  padding: 14px 14px;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-size: 16px;
  outline: none;
  transition: all 0.15s;
  -webkit-appearance: none;
  appearance: none;
}

.input:focus {
  border-color: var(--color-primary);
  background: #fff;
}

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

select.input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238e8e93' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

/* ===== Login ===== */

.login-prompt {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-height) - var(--tab-bar-height) - 64px);
  padding: 32px 16px;
}

.login-prompt__card {
  text-align: center;
  width: 100%;
  max-width: 320px;
}

.login-prompt__icon {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.login-prompt__icon i {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: 20px;
  color: #fff;
  padding: 18px;
}

.login-prompt__title {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 6px;
  letter-spacing: -0.3px;
}

.login-prompt__desc {
  color: var(--color-text-muted);
  margin-bottom: 28px;
  font-size: 15px;
  line-height: 1.4;
}

.login-prompt__error {
  color: var(--color-error);
  margin-bottom: 16px;
  font-size: 14px;
}

/* ===== Mining Page ===== */

.mining__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}

.stat-card {
  background: var(--color-card);
  padding: 16px 12px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border-light);
}

.stat-card__label {
  display: block;
  font-size: 11px;
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.2px;
  margin-bottom: 4px;
}

.stat-card__value {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.3px;
  font-variant-numeric: tabular-nums;
}

.stat-card__unit {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 1px;
  display: block;
}

.mining__coin-wrapper {
  display: flex;
  justify-content: center;
  position: relative;
  margin-bottom: 0;
}

.mining__coin {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(145deg, #e8f0fe, #d4e4fd);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
  transition: transform 0.12s;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  border: 2px solid rgba(0, 122, 255, 0.12);
  box-shadow: 0 4px 20px rgba(0, 122, 255, 0.08);
}

.mining__coin:active {
  transform: scale(0.92);
}

.mining__coin--mining {
  border-color: rgba(0, 122, 255, 0.3);
  box-shadow: 0 4px 24px rgba(0, 122, 255, 0.12);
}

.mining__coin--mining .mining__rings {
  display: block;
}

.mining__coin--mining .mining__glow {
  display: block;
}

.mining__coin-icon {
  font-size: 48px;
  position: relative;
  z-index: 2;
  color: var(--color-primary);
}

.mining__rings {
  position: absolute;
  inset: -16px;
  pointer-events: none;
  display: none;
}

.mining__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px solid rgba(0, 122, 255, 0.15);
  animation: expandRing 2.5s ease-out infinite;
}

.mining__ring--delay1 {
  animation-delay: 0.8s;
}

.mining__ring--delay2 {
  animation-delay: 1.6s;
}

@keyframes expandRing {
  0% { transform: scale(0.85); opacity: 0.5; }
  100% { transform: scale(1.3); opacity: 0; }
}

.mining__glow {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 122, 255, 0.06), transparent 60%);
  animation: glowPulse 2s ease-in-out infinite;
  pointer-events: none;
  display: none;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

.mining__particles {
  position: absolute;
  inset: -40px;
  pointer-events: none;
  overflow: visible;
  z-index: 0;
}

.mining__sparkle {
  position: absolute;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-primary-light);
  animation: sparkleFloat 1.2s ease-out forwards;
  pointer-events: none;
}

@keyframes sparkleFloat {
  0% { opacity: 1; transform: translate(0, 0) scale(1); }
  100% { opacity: 0; transform: translate(var(--dx, -20px), var(--dy, -30px)) scale(0); }
}

.mining__reward-float {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translateX(-50%);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-success);
  pointer-events: none;
  white-space: nowrap;
  animation: floatUp 1s ease-out forwards;
  z-index: 10;
}

@keyframes floatUp {
  0% { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); }
  100% { opacity: 0; transform: translateX(-50%) translateY(-40px) scale(1.1); }
}

.mining__main {
  text-align: center;
  margin-bottom: 4px;
}

.mining__start-btn {
  animation: none;
}

.mining__active {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-card);
  padding: 12px 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border-light);
  margin-bottom: 8px;
}

.mining__countdown {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.mining__status {
  font-size: 13px;
  color: var(--color-text-muted);
  text-align: right;
  flex-shrink: 0;
}

.mining__loader {
  text-align: center;
  padding: 20px 0;
}

.mining__loader-ring {
  width: 32px;
  height: 32px;
  border: 2.5px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 0 auto 8px;
}

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

.mining__loader-text {
  font-size: 13px;
  color: var(--color-text-muted);
}

.mining__info {
  text-align: center;
}

.mining__info-text {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* ===== Wallet Page ===== */

.wallet__balance-card {
  background: var(--color-primary);
  border-radius: var(--radius-xl);
  padding: 28px 20px;
  text-align: center;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}

.wallet__balance-card::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -40%;
  width: 80%;
  height: 120%;
  background: radial-gradient(circle, rgba(255,255,255,0.08), transparent 70%);
  pointer-events: none;
}

.wallet__balance-label {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 6px;
  font-weight: 500;
  letter-spacing: 0.3px;
  position: relative;
}

.wallet__balance-value {
  display: block;
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
  font-variant-numeric: tabular-nums;
  position: relative;
}

.wallet__balance-currency {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  position: relative;
  margin-top: 2px;
  display: block;
}

.wallet__actions {
  margin-bottom: 20px;
}

.wallet__section-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.2px;
}

.wallet__transfer-form {
  background: var(--color-card);
  padding: 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border-light);
}

.wallet__transfer-form .input {
  margin-bottom: 8px;
}

.wallet__error {
  color: var(--color-error);
  font-size: 13px;
  margin-top: 6px;
}

.wallet__tx-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.wallet__empty {
  text-align: center;
  color: var(--color-text-muted);
  padding: 24px;
  font-size: 14px;
}

.wallet-tx {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border-light);
}

.wallet-tx__icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  flex-shrink: 0;
  font-size: 16px;
}

.wallet-tx__icon--in {
  background: rgba(52, 199, 89, 0.08);
  color: var(--color-success);
}

.wallet-tx__icon--out {
  background: rgba(255, 59, 48, 0.08);
  color: var(--color-error);
}

.wallet-tx__icon--reward {
  background: rgba(0, 122, 255, 0.08);
  color: var(--color-primary);
}

.wallet-tx__info {
  flex: 1;
  min-width: 0;
}

.wallet-tx__title {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 1px;
}

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

.wallet-tx__amount {
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
}

.wallet-tx__amount--positive {
  color: var(--color-success);
}

.wallet-tx__amount--negative {
  color: var(--color-error);
}

/* ===== Staking Page ===== */

.staking__hero {
  text-align: center;
  padding: 32px 16px 24px;
}

.staking__icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  background: rgba(0, 122, 255, 0.08);
  border-radius: 18px;
  color: var(--color-primary);
  padding: 16px;
}

.staking__title {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.staking__badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 122, 255, 0.08);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 13px;
  border-radius: 16px;
  letter-spacing: 0.3px;
}

.staking__desc {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 24px;
  line-height: 1.5;
  font-size: 14px;
}

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

.benefit-card {
  background: var(--color-card);
  padding: 20px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border-light);
}

.benefit-card__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
  background: var(--color-bg);
  border-radius: 12px;
  color: var(--color-primary);
}

.benefit-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 2px;
  color: var(--color-text);
}

.benefit-card p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* ===== Tasks Page ===== */

.tasks__header {
  margin-bottom: 20px;
  padding-top: 4px;
}

.tasks__title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 2px;
  letter-spacing: -0.3px;
}

.tasks__subtitle {
  color: var(--color-text-muted);
  font-size: 14px;
}

.tasks__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tasks__loading {
  text-align: center;
  color: var(--color-text-muted);
  padding: 32px;
  font-size: 14px;
}

.task-card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border-light);
}

.task-card:active {
  background: var(--color-bg);
}

.task-card__icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border-radius: 12px;
  color: var(--color-primary);
  flex-shrink: 0;
  font-size: 20px;
}

.task-card__info {
  flex: 1;
  min-width: 0;
}

.task-card__title {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 1px;
}

.task-card__desc {
  font-size: 12px;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.task-card__reward {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.task-card__action {
  padding: 8px 14px;
  font-size: 13px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.task-card--completed {
  opacity: 0.45;
}

.task-card--completed .task-card__action {
  background: rgba(52, 199, 89, 0.1);
  border-color: rgba(52, 199, 89, 0.2);
  color: var(--color-success);
  cursor: default;
}

/* ===== Profile Page ===== */

.profile__header {
  text-align: center;
  padding: 24px 0 20px;
}

.profile__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 12px;
  border: 3px solid #fff;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.profile__avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile__avatar-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  color: var(--color-primary);
}

.profile__name {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.2px;
}

.profile__username {
  color: var(--color-text-muted);
  font-size: 14px;
  margin-top: 1px;
}

.profile__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 20px;
}

.profile__stat {
  background: var(--color-card);
  padding: 14px 8px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border-light);
}

.profile__stat-value {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 2px;
  font-variant-numeric: tabular-nums;
}

.profile__stat-label {
  font-size: 10px;
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.profile__section {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border-light);
}

.profile__section-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.2px;
  color: var(--color-text-secondary);
}

.profile__referral-code {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 2px;
  margin-bottom: 12px;
  font-family: 'SF Mono', 'Courier New', monospace;
  text-align: center;
}

.profile__info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

.profile__info-row:last-child {
  border-bottom: none;
}

.profile__info-row span:first-child {
  color: var(--color-text-muted);
}

.profile__info-row span:last-child {
  font-weight: 600;
  color: var(--color-text-secondary);
}

/* ===== Toast ===== */

.toast {
  position: fixed;
  bottom: calc(var(--tab-bar-height) + 16px);
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  z-index: 200;
  white-space: nowrap;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  animation: toastIn 0.3s ease;
}

.toast--success {
  background: var(--color-success);
  color: #fff;
}

.toast--error {
  background: var(--color-error);
  color: #fff;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.main-content > div {
  animation: fadeIn 0.25s ease;
}

/* ===== Admin Navigation ===== */

.admin-nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 16px;
  padding-bottom: 4px;
  scrollbar-width: none;
}

.admin-nav::-webkit-scrollbar {
  display: none;
}

.admin-nav__item {
  flex-shrink: 0;
  padding: 8px 16px;
  background: var(--color-card);
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: all 0.15s;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border-light);
}

.admin-nav__item--active {
  background: var(--color-primary);
  color: #fff;
  border-color: transparent;
}

/* ===== Admin Pages ===== */

.admin {
  max-width: 100%;
}

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

.admin__title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.3px;
}

.admin__search {
  display: flex;
  gap: 8px;
}

.admin__search .input {
  min-width: 180px;
}

.admin__pagination-info {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.admin__stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}

.admin-stat {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border-light);
}

.admin-stat__value {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 2px;
  word-break: break-all;
}

.admin-stat__label {
  font-size: 10px;
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.admin__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 640px) {
  .admin__grid { grid-template-columns: 1fr; }
}

.admin__section {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border-light);
}

.admin__section-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
}

.admin__table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.admin-table th {
  text-align: left;
  padding: 10px 8px;
  color: var(--color-text-muted);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
  font-weight: 600;
}

.admin-table td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

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

.admin-table__mono {
  font-family: 'SF Mono', 'Courier New', monospace;
  font-size: 11px;
}

.admin-table__actions {
  display: flex;
  gap: 6px;
  flex-wrap: nowrap;
}

.admin-table__empty {
  text-align: center;
  color: var(--color-text-muted);
  padding: 28px !important;
}

.admin-badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}

.admin-badge--active {
  background: rgba(52, 199, 89, 0.1);
  color: var(--color-success);
}

.admin-badge--inactive {
  background: rgba(255, 59, 48, 0.1);
  color: var(--color-error);
}

.admin__pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}

.admin__pagination-current {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ===== Modal ===== */

.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 300;
}

.modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
}

.modal__content {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: 20px 16px calc(24px + var(--safe-bottom));
  width: 100%;
  max-width: 480px;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
  animation: modalSlideUp 0.3s ease;
}

@keyframes modalSlideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.modal__content--wide {
  max-width: 480px;
}

.modal__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -0.2px;
}

.modal__desc {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.modal__fields {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 16px 0;
}

.modal__actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.modal__actions .btn {
  flex: 1;
}

.modal__error {
  color: var(--color-error);
  font-size: 13px;
  margin-top: 8px;
}

.modal__checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  cursor: pointer;
}

.modal__checkbox input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

/* ===== Responsive ===== */

@media (max-width: 640px) {
  .admin-table thead { display: none; }
  .admin-table,
  .admin-table tbody,
  .admin-table tr,
  .admin-table td { display: block; }
  .admin-table tr {
    background: var(--color-card);
    border-radius: var(--radius);
    padding: 12px;
    margin-bottom: 8px;
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border-light);
  }
  .admin-table td {
    padding: 5px 0;
    border-bottom: none;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
  }
  .admin-table td:empty { display: none; }
  .admin-table td::before {
    content: attr(data-label);
    font-size: 10px;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    min-width: 70px;
    flex-shrink: 0;
  }
  .admin-table td:first-child { padding-top: 0; }
  .admin-table td:last-child { padding-bottom: 0; }
  .admin-table__actions { flex-wrap: wrap; margin-top: 2px; }
  .admin-table__actions::before { display: none; }
  .admin-table td.admin-table__actions {
    border-top: 1px solid var(--color-border);
    margin-top: 8px;
    padding-top: 10px;
  }
  .admin-table td.admin-table__actions::before { content: none; }
  .admin-table td.admin-table__mono { font-family: inherit; font-size: inherit; }
  .admin-table__empty { display: block !important; text-align: center; padding: 20px !important; }
}

@media (max-width: 480px) {
  .admin__header { flex-direction: column; align-items: stretch; }
  .admin__header .btn { width: 100%; justify-content: center; }
  .admin__search { flex-direction: column; }
  .admin__search .input { min-width: auto; }
  .modal__content { padding: 16px 14px calc(20px + var(--safe-bottom)); }
  .modal__actions { flex-direction: column; }
  .admin__stats { grid-template-columns: repeat(2, 1fr); }
  .admin-stat__value { font-size: 18px; }
  .admin-nav__item { font-size: 12px; padding: 7px 12px; }
  .mining__coin { width: 100px; height: 100px; }
  .mining__coin-icon { font-size: 40px; }
  .mining__active { padding: 10px 14px; }
  .mining__countdown { font-size: 15px; }
  .mining__status { font-size: 12px; }
  .wallet__balance-value { font-size: 32px; }
  .header__balance-label { display: none; }
  .header__balance-value { font-size: 13px; }
}