/* Premium Glassmorphism Dark Theme for FlashKG */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

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

:root {
  /* Telegram Theme Colors with Sleek Dark Defaults */
  --bg-color: var(--tg-theme-bg-color, #090d16);
  --secondary-bg-color: var(--tg-theme-secondary-bg-color, #111827);
  --text-color: var(--tg-theme-text-color, #f3f4f6);
  --hint-color: var(--tg-theme-hint-color, #9ca3af);
  --link-color: var(--tg-theme-link-color, #ffca28);
  --button-color: var(--tg-theme-button-color, #ffd700);
  --button-text-color: var(--tg-theme-button-text-color, #090d16);
  
  /* Custom Aesthetics */
  --accent-color: #ffd700;
  --accent-glow: rgba(255, 215, 0, 0.15);
  --card-bg: rgba(255, 255, 255, 0.03);
  --card-border: rgba(255, 255, 255, 0.06);
  --card-hover-bg: rgba(255, 255, 255, 0.06);
  --card-hover-border: rgba(255, 215, 0, 0.3);
  --success: #10b981;
  --danger: #ef4444;
  --glass-nav-bg: rgba(17, 24, 39, 0.8);
  --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  --glow-shadow: 0 0 15px rgba(255, 215, 0, 0.1);
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  padding-bottom: 90px; /* space for bottom navigation */
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(255, 215, 0, 0.03) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(255, 215, 0, 0.02) 0%, transparent 40%);
  background-attachment: fixed;
}

/* ─── Header Topbar ────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--card-border);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-mark {
  font-size: 26px;
  filter: drop-shadow(0 0 8px var(--accent-color));
  animation: pulse-glow 2s infinite ease-in-out;
}

.logo-title {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, #fff 0%, var(--accent-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-sub {
  font-size: 11px;
  color: var(--hint-color);
  font-weight: 500;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge {
  font-size: 11px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--danger) 0%, #b91c1c 100%);
  color: #fff;
  padding: 4px 8px;
  border-radius: 20px;
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.3);
}

.icon-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--card-border);
  color: var(--text-color);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
  font-size: 16px;
}

.icon-btn:hover, .icon-btn.active-admin {
  background: rgba(255, 215, 0, 0.1);
  border-color: var(--accent-color);
  color: var(--accent-color);
  box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
  transform: rotate(30deg);
}

/* ─── Bottom Navigation ────────────────────────────────────── */
.bottom-nav {
  position: fixed;
  bottom: 16px;
  left: 16px;
  right: 16px;
  z-index: 100;
  background: var(--glass-nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 8px 12px;
  display: flex;
  justify-content: space-around;
  box-shadow: var(--shadow);
  animation: slide-up 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-item {
  background: transparent;
  border: none;
  color: var(--hint-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 12px;
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.25s ease;
  flex: 1;
  max-width: 80px;
}

.nav-ico {
  font-size: 20px;
  transition: transform 0.25s ease;
}

.nav-lbl {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.nav-item:active .nav-ico {
  transform: scale(0.85);
}

.nav-item.active {
  color: var(--accent-color);
  background: rgba(255, 215, 0, 0.08);
}

.nav-item.active .nav-ico {
  transform: scale(1.1);
  filter: drop-shadow(0 0 5px rgba(255, 215, 0, 0.4));
}

/* ─── Main Content ─────────────────────────────────────────── */
.content {
  padding: 20px;
  max-width: 500px;
  margin: 0 auto;
  animation: fade-in 0.3s ease-out;
}

/* ─── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 18px 20px;
  margin-bottom: 14px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.card:hover {
  transform: translateY(-2px);
  background: var(--card-hover-bg);
  border-color: rgba(255, 255, 255, 0.1);
}

.card h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--hint-color);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 6px;
}

.card .value {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.stats-grid .card {
  margin-bottom: 0;
}

/* ─── Forms and Inputs ─────────────────────────────────────── */
input, textarea, select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  outline: none;
  margin-bottom: 12px;
  transition: all 0.25s ease;
  font-family: inherit;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent-color);
  background: rgba(255, 215, 0, 0.02);
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--hint-color);
  margin-bottom: 6px;
  padding-left: 4px;
}

textarea {
  min-height: 100px;
  resize: vertical;
}

/* ─── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  background: linear-gradient(135deg, var(--accent-color) 0%, #e6c200 100%);
  color: var(--button-text-color);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.2);
  font-family: inherit;
}

.btn:active {
  transform: scale(0.97);
  opacity: 0.9;
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
  color: #fff;
  box-shadow: 0 4px 15px rgba(239, 68, 68, 0.2);
}

.btn-success {
  background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
  color: #fff;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.2);
}

.btn-outline {
  background: transparent;
  color: var(--accent-color);
  border: 1.5px solid var(--accent-color);
  box-shadow: none;
}

.btn-outline:hover {
  background: rgba(255, 215, 0, 0.05);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 10px;
  width: auto;
  flex: 1;
}

.action-group {
  display: flex;
  gap: 10px;
  width: 100%;
  margin-top: 10px;
}

/* ─── QR Code File Upload Area ────────────────────────────── */
.qr-upload-container {
  border: 2px dashed var(--card-border);
  border-radius: 16px;
  padding: 24px 16px;
  text-align: center;
  background: rgba(255, 255, 255, 0.01);
  cursor: pointer;
  transition: all 0.25s ease;
  margin-bottom: 16px;
  position: relative;
}

.qr-upload-container:hover, .qr-upload-container.dragover {
  border-color: var(--accent-color);
  background: rgba(255, 215, 0, 0.02);
}

.qr-upload-icon {
  font-size: 32px;
  margin-bottom: 8px;
  display: block;
}

.qr-upload-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--hint-color);
  margin-bottom: 4px;
}

.qr-upload-hint {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.3);
}

.qr-file-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.qr-preview-container {
  margin-top: 12px;
  border-radius: 12px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.qr-preview-img {
  max-width: 120px;
  max-height: 120px;
  object-fit: contain;
  border-radius: 8px;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.qr-preview-remove {
  font-size: 11px;
  color: var(--danger);
  background: transparent;
  border: none;
  cursor: pointer;
  font-weight: 600;
}

/* ─── Lightbox for QR code viewing ────────────────────────── */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 7, 12, 0.85);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.lightbox.hidden {
  display: none !important;
}

.lightbox-content-wrapper {
  position: relative;
  max-width: 90%;
  max-height: 80%;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: zoom-in 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.lightbox img {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: 16px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
}

.lightbox-close {
  position: absolute;
  top: -45px;
  right: 0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all 0.2s ease;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.05);
}

/* ─── Profile details ──────────────────────────────────────── */
.user-row, .wd-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
}

.wd-row {
  border-bottom: 1px solid var(--card-border);
  padding: 12px 0;
}

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

.user-info, .wd-info {
  flex: 1;
}

.user-name {
  font-weight: 700;
  font-size: 16px;
  color: #fff;
}

.user-sub {
  font-size: 12px;
  color: var(--hint-color);
}

.user-balance {
  font-weight: 800;
  font-size: 16px;
  color: var(--accent-color);
}

.wd-status-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 12px;
  text-transform: uppercase;
}

.wd-status-badge.pending {
  background: rgba(255, 215, 0, 0.1);
  color: var(--accent-color);
  border: 1px solid rgba(255, 215, 0, 0.2);
}

.wd-status-badge.approved {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.wd-status-badge.rejected {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ─── Sub-menu for More Tab ────────────────────────────────── */
.menu-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 10px;
}

.menu-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 16px 20px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.menu-item:hover {
  border-color: var(--accent-color);
  background: rgba(255, 215, 0, 0.02);
  transform: translateX(4px);
}

.menu-item-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.menu-item-icon {
  font-size: 22px;
}

.menu-item-title {
  font-weight: 600;
  font-size: 15px;
}

.menu-item-arrow {
  color: var(--hint-color);
  font-size: 14px;
}

/* ─── Utilities & Animation ────────────────────────────────── */
.mb-8 { margin-bottom: 8px; }
.mb-12 { margin-bottom: 12px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.text-center { text-align: center; }
.hidden { display: none !important; }

.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 150px;
  color: var(--hint-color);
  font-size: 14px;
  font-weight: 500;
  gap: 10px;
}

.loading::before {
  content: "";
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255, 215, 0, 0.15);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 1s infinite linear;
}

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

@keyframes fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slide-up {
  from { transform: translateY(100px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes zoom-in {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

@keyframes pulse-glow {
  0%, 100% { filter: drop-shadow(0 0 5px var(--accent-color)); }
  50% { filter: drop-shadow(0 0 12px var(--accent-color)); }
}

/* ─── Glassmorphism Calculator ────────────────────────────── */
.calc-container {
  max-width: 320px;
  margin: 15px auto;
  padding: 22px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.calc-screen {
  background: rgba(9, 13, 22, 0.7);
  border: 1px solid rgba(255, 215, 0, 0.15);
  border-radius: 18px;
  padding: 20px;
  font-size: 26px;
  font-weight: 800;
  text-align: right;
  color: #fff;
  font-family: 'Courier New', monospace;
  margin-bottom: 20px;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  box-shadow: inset 0 4px 12px rgba(0,0,0,0.8), 0 0 10px rgba(255, 215, 0, 0.05);
  word-break: break-all;
}

.calc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.calc-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: #f3f4f6;
  height: 54px;
  border-radius: 14px;
  font-size: 19px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  user-select: none;
}

.calc-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

.calc-btn:active {
  background: rgba(255, 255, 255, 0.12);
  transform: scale(0.94);
  box-shadow: none;
}

.calc-op {
  background: rgba(255, 215, 0, 0.08);
  border-color: rgba(255, 215, 0, 0.2);
  color: var(--accent-color);
}

.calc-op:hover {
  background: rgba(255, 215, 0, 0.15);
  border-color: var(--accent-color);
  box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}

.calc-eq {
  background: linear-gradient(135deg, var(--accent-color) 0%, #e6c200 100%);
  color: #090d16;
  border: none;
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.calc-eq:hover {
  background: linear-gradient(135deg, #ffe033 0%, var(--accent-color) 100%);
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
  transform: translateY(-1px);
}

.calc-eq:active {
  transform: scale(0.94);
  box-shadow: none;
}