/* KTÜ GTOK Okçuluk Kulübü Yoklama Sistemi - Doğal & Asil Tasarım Sistemi */
:root {
  /* Doğal Antrasit & Grafit Arka Plan Paleti (Göz yormayan, organik derinlik) */
  --bg-main: #0c0e12;
  --bg-card: #15181f;
  --bg-card-hover: #1c202a;
  --bg-card-subtle: #181c25;
  --bg-glass: rgba(21, 24, 31, 0.85);
  
  /* İnce Zarif Sınırlar */
  --border-color: rgba(255, 255, 255, 0.07);
  --border-light: rgba(255, 255, 255, 0.12);
  --border-active: rgba(212, 163, 115, 0.4);

  /* Asil Okçuluk / Kemankeş Pirinç & Antik Altın Paleti (Yapay neon yerine doğal tonlar) */
  --gold: #d4a373;
  --gold-hover: #e0b080;
  --gold-dark: #a87948;
  --gold-glow: rgba(212, 163, 115, 0.15);
  --gold-light: #faedcd;
  --gold-surface: rgba(212, 163, 115, 0.08);

  /* Doğal Vurgu Renkleri */
  --target-red: #e05252;
  --target-blue: #4f85e0;
  --emerald: #22c55e;
  --emerald-surface: rgba(34, 197, 94, 0.1);
  --emerald-glow: rgba(34, 197, 94, 0.15);
  --rose: #e11d48;

  /* Doğal Tipografi & Metin Renkleri */
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Yumuşak Doğal Gölgeler (Yapay neon parlamalar kaldırıldı) */
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.45);
  --shadow-gold: 0 4px 20px rgba(212, 163, 115, 0.12);

  --font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  overflow-x: hidden;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(ellipse 60% 40% at 20% 0%, rgba(212, 163, 115, 0.04) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 85% 100%, rgba(79, 133, 224, 0.03) 0%, transparent 60%);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--gold);
}

/* Üst Başlık (Header) */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: var(--bg-glass);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: inherit;
}

.brand-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(145deg, #222733, #151821);
  border: 1px solid rgba(212, 163, 115, 0.4);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.brand-icon::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(212, 163, 115, 0.2), transparent 70%);
  pointer-events: none;
}

.brand-text h1 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #f8fafc;
}

.brand-text p {
  font-size: 0.75rem;
  color: var(--gold);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.live-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.25);
  color: #4ade80;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
}

.live-dot {
  width: 7px;
  height: 7px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.2); }
}

.time-display {
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

/* Bulut Bağlantı Göstergesi */
.cloud-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.cloud-badge:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.cloud-badge.connected {
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.25);
  color: #4ade80;
}

.cloud-badge.connected .cloud-dot {
  background: #22c55e;
  box-shadow: 0 0 6px rgba(34, 197, 94, 0.6);
  animation: pulse-dot 2s infinite;
}

.cloud-badge.disconnected {
  background: rgba(212, 163, 115, 0.08);
  border: 1px solid rgba(212, 163, 115, 0.25);
  color: var(--gold);
}

.cloud-badge.disconnected .cloud-dot {
  background: var(--gold);
}

.cloud-badge.connecting {
  background: rgba(79, 133, 224, 0.08);
  border: 1px solid rgba(79, 133, 224, 0.25);
  color: #70a1f0;
}

.cloud-badge.connecting .cloud-dot {
  background: #4f85e0;
  animation: pulse-dot 0.8s infinite;
}

.cloud-badge.error {
  background: rgba(224, 82, 82, 0.08);
  border: 1px solid rgba(224, 82, 82, 0.25);
  color: #f87171;
}

.cloud-badge.error .cloud-dot {
  background: #e05252;
}

.cloud-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Navigasyon Sekmeleri */
.nav-tabs {
  max-width: 1400px;
  margin: 1.25rem auto 0;
  padding: 0 1.5rem;
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  border-bottom: 1px solid var(--border-color);
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.75rem 1.15rem;
  background: transparent;
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  user-select: none;
  position: relative;
  top: 1px;
}

.nav-tab:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-main);
}

.nav-tab.active {
  background: var(--bg-card);
  color: var(--text-main);
  border-color: var(--border-color);
  border-top: 2px solid var(--gold);
  border-bottom: 1px solid var(--bg-card);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.15);
}

.nav-tab .tab-badge {
  background: rgba(212, 163, 115, 0.12);
  color: var(--gold);
  font-size: 0.72rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-weight: 600;
}

/* Ana İçerik Konteyneri */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-pane.active {
  display: block;
}

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

/* Grid Düzenleri */
.scanner-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .scanner-grid {
    grid-template-columns: 1fr;
  }
}

/* Kart Bileşeni */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-color);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-main);
}

.card-title span.icon {
  font-size: 1.25rem;
}

/* QR Kamera Alanı */
.camera-box {
  position: relative;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--border-light);
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.camera-box.drag-active {
  border-color: var(--gold) !important;
  background: rgba(245, 158, 11, 0.1) !important;
}

.camera-box-dropzone-hint {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-align: center;
  margin-top: 0.5rem;
}

#reader {
  width: 100% !important;
  border: none !important;
}

#reader video {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  border-radius: var(--radius-md);
}

/* Nişan / Okçuluk Kamera Kadrajı (Minimalist & Doğal) */
.scanner-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.target-aim {
  width: 240px;
  height: 240px;
  position: relative;
  border-radius: 18px;
  box-shadow: 0 0 0 9999px rgba(12, 14, 18, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 4 Zarif Köşe Ayracı (Kamera Vizörü) */
.target-aim::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 18px;
  background: 
    linear-gradient(to right, var(--gold) 24px, transparent 24px) 0 0,
    linear-gradient(to right, var(--gold) 24px, transparent 24px) 0 100%,
    linear-gradient(to left, var(--gold) 24px, transparent 24px) 100% 0,
    linear-gradient(to left, var(--gold) 24px, transparent 24px) 100% 100%,
    linear-gradient(to bottom, var(--gold) 24px, transparent 24px) 0 0,
    linear-gradient(to bottom, var(--gold) 24px, transparent 24px) 100% 0,
    linear-gradient(to top, var(--gold) 24px, transparent 24px) 0 100%,
    linear-gradient(to top, var(--gold) 24px, transparent 24px) 100% 100%;
  background-repeat: no-repeat;
  background-size: 24px 24px;
}

.target-aim::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
  opacity: 0.7;
}

.scan-laser {
  position: absolute;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  box-shadow: 0 0 8px rgba(212, 163, 115, 0.4);
  border-radius: 2px;
  animation: laserScan 2.6s ease-in-out infinite alternate;
}

@keyframes laserScan {
  0% { top: 12%; opacity: 0.3; }
  100% { top: 88%; opacity: 0.85; }
}

.camera-controls {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

/* Hızlı Manuel Arama */
.quick-search-box {
  margin-top: 1.25rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input-wrapper span.icon {
  position: absolute;
  left: 1rem;
  color: var(--text-dim);
  font-size: 1.1rem;
}

.input-field {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
}

.input-field:focus {
  border-color: var(--gold);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 0 3px rgba(212, 163, 115, 0.12);
}

.search-results-dropdown {
  margin-top: 0.5rem;
  max-height: 200px;
  overflow-y: auto;
  border-radius: var(--radius-sm);
  background: #0d131f;
  border: 1px solid var(--border-color);
}

.search-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition);
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background: var(--bg-card-hover);
}

/* Bugün Katılanlar Canlı Listesi */
.live-stream-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stats-counter {
  background: rgba(212, 163, 115, 0.1);
  border: 1px solid rgba(212, 163, 115, 0.3);
  color: var(--gold);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 0.2rem 0.75rem;
  border-radius: 999px;
}

.attendance-scroll-list {
  max-height: 480px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding-right: 0.25rem;
}

.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-dim);
}

.empty-state .icon {
  font-size: 2.8rem;
  display: block;
  margin-bottom: 0.75rem;
  opacity: 0.7;
}

.attendance-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  transition: var(--transition);
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(10px); }
  to { opacity: 1; transform: translateX(0); }
}

.attendance-item:hover {
  border-color: var(--border-light);
  background: rgba(255, 255, 255, 0.04);
}

.attendance-user-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, #222733, #151821);
  border: 1px solid rgba(212, 163, 115, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--gold);
}

.user-names h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

.user-names p {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.attendance-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.checkin-time {
  font-size: 0.82rem;
  font-family: inherit;
  font-weight: 600;
  color: #4ade80;
  background: rgba(34, 197, 94, 0.08);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

/* Buton Stilleri (Tok, Doğal ve Prestijli) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(180deg, #dfab75 0%, #b88252 100%);
  color: #0f1115;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(180deg, #e8b987 0%, #c58f5e 100%);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--border-light);
  color: #fff;
}

.btn-success {
  background: linear-gradient(180deg, #22c55e 0%, #16a34a 100%);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.btn-success:hover {
  background: linear-gradient(180deg, #34d399 0%, #22c55e 100%);
  transform: translateY(-1px);
}

.btn-danger {
  background: rgba(224, 82, 82, 0.1);
  border-color: rgba(224, 82, 82, 0.25);
  color: #f87171;
}

.btn-danger:hover {
  background: #dc2626;
  color: #fff;
}

.btn-danger:hover {
  background: #ef4444;
  color: #fff;
}

.btn-icon-only {
  padding: 0.5rem;
  border-radius: var(--radius-sm);
}

/* Sporcular Listesi / Izgara */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.toolbar-search {
  flex: 1;
  max-width: 380px;
}

.students-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.student-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.student-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  opacity: 0.4;
}

.student-card:hover {
  transform: translateY(-2px);
  border-color: rgba(212, 163, 115, 0.35);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
}

.student-card-top {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.student-avatar-big {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, #20242e, #14171f);
  border: 1px solid rgba(212, 163, 115, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gold);
}

.student-details h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.badge-category {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background: rgba(212, 163, 115, 0.08);
  color: var(--gold);
  border: 1px solid rgba(212, 163, 115, 0.22);
  margin-top: 0.2rem;
}

.student-info-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.84rem;
  padding: 0.35rem 0;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.student-card-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* Yönetim Kurulu (YK) VIP Kartı & Rozet Stilleri */
.student-card.vip-card {
  border: 1.5px solid rgba(212, 163, 115, 0.65);
  background: linear-gradient(160deg, #1b1e28 0%, #11131a 100%);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), 0 0 16px rgba(212, 163, 115, 0.12);
}

.student-card.vip-card::before {
  background: linear-gradient(to right, transparent, #fbbf24, #d4a373, transparent);
  opacity: 0.85;
  height: 3px;
}

.student-card.vip-card .student-avatar-big {
  border: 1.5px solid #d4a373;
  background: linear-gradient(145deg, #2a251e, #181512);
  color: #fbbf24;
  box-shadow: 0 0 12px rgba(212, 163, 115, 0.25);
}

.badge-role {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(212, 163, 115, 0.25) 0%, rgba(180, 83, 9, 0.2) 100%);
  color: #fbbf24;
  border: 1px solid rgba(212, 163, 115, 0.55);
  box-shadow: 0 2px 8px rgba(212, 163, 115, 0.15);
  margin-top: 0.25rem;
}

.archery-id-card.vip-card {
  border: 2px solid #d4a373;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), 0 0 30px rgba(212, 163, 115, 0.25), inset 0 0 0 1px rgba(251, 191, 36, 0.25);
}

.id-card-role-banner {
  background: linear-gradient(135deg, #d4a373 0%, #b45309 100%);
  color: #0c0e12;
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  margin: 0.35rem auto 0.65rem auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Dijital QR Sporcu Kimlik Kartı (Modal İçi) */
.id-card-preview-wrapper {
  display: flex;
  justify-content: center;
  padding: 1rem 0;
}

.archery-id-card {
  width: 340px;
  background: linear-gradient(155deg, #181c25 0%, #0d0f14 100%);
  border: 1px solid rgba(212, 163, 115, 0.45);
  border-radius: 18px;
  padding: 1.5rem;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), inset 0 0 0 1px rgba(212, 163, 115, 0.12);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.id-card-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 14rem;
  opacity: 0.025;
  pointer-events: none;
}

.id-card-header {
  border-bottom: 1px solid rgba(212, 163, 115, 0.2);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
}

.id-card-club-name {
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gold);
  text-transform: uppercase;
}

.id-card-sub {
  font-size: 0.7rem;
  color: #94a3b8;
  letter-spacing: 0.06em;
}

.id-card-qr-container {
  background: #ffffff;
  padding: 0.85rem;
  border-radius: 14px;
  display: inline-block;
  margin: 0.5rem auto 1rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
}

.id-card-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.25rem;
}

.id-card-meta {
  display: flex;
  justify-content: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: #cbd5e1;
  margin-bottom: 0.75rem;
}

.id-card-footer {
  font-size: 0.65rem;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 0.6rem;
}

/* Modallar */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8, 10, 14, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: all;
}

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  max-width: 520px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: scale(0.96);
  transition: transform 0.25s ease;
}

.modal-box-large {
  max-width: 960px !important;
}

/* Antrenman Seansları ve Ders Grupları Izgarası (Kutucuk Kutucuk Tasarım) */
.sessions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.session-box-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}

.session-box-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right, #38bdf8, #818cf8, var(--gold));
  opacity: 0.6;
}

.session-box-card:hover {
  transform: translateY(-3px);
  border-color: rgba(56, 189, 248, 0.45);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45), 0 0 20px rgba(56, 189, 248, 0.1);
}

.session-box-card.active-session {
  border-color: rgba(74, 222, 128, 0.55);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45), 0 0 20px rgba(74, 222, 128, 0.15);
}

.session-box-card.active-session::before {
  background: linear-gradient(to right, #22c55e, #4ade80);
  opacity: 1;
}

.session-badge-time {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.12);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.35);
}

.session-progress-bar {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  overflow: hidden;
  margin: 0.75rem 0;
}

.session-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #22c55e, #4ade80);
  border-radius: 999px;
  transition: width 0.4s ease;
}

.modal-backdrop.active .modal-box {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-body {
  padding: 1.5rem;
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.15);
}

/* Form Elemanları */
.form-group {
  margin-bottom: 1.15rem;
}

.form-label {
  display: block;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--gold);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 0 3px rgba(212, 163, 115, 0.12);
}

/* QR Başarı Pop-up Gösterimi (Zarif & Tok) */
.checkin-popup {
  position: fixed;
  top: 4.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(-15px);
  background: #161922;
  border: 1px solid rgba(34, 197, 94, 0.45);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 24px rgba(34, 197, 94, 0.15);
  border-radius: var(--radius-xl);
  padding: 1.25rem 1.75rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.checkin-popup.show {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.checkin-popup.duplicate {
  border-color: rgba(212, 163, 115, 0.45);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 24px rgba(212, 163, 115, 0.15);
}

.checkin-popup-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: #4ade80;
}

.checkin-popup.duplicate .checkin-popup-icon {
  background: rgba(212, 163, 115, 0.1);
  border-color: rgba(212, 163, 115, 0.35);
  color: var(--gold);
}

.checkin-popup.vip {
  border: 1.5px solid rgba(212, 163, 115, 0.8);
  background: linear-gradient(135deg, #1f1b15 0%, #0f1118 100%);
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.7), 0 0 28px rgba(212, 163, 115, 0.35);
}

.checkin-popup.vip .checkin-popup-icon {
  background: linear-gradient(135deg, rgba(212, 163, 115, 0.3) 0%, rgba(180, 83, 9, 0.25) 100%);
  border-color: #d4a373;
  color: #fbbf24;
}

.checkin-popup-text h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
}

.checkin-popup-text p {
  color: #cbd5e1;
  font-size: 0.9rem;
}

/* Excel Paneli */
.excel-feature-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 1.25rem;
}

.excel-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
}

.excel-card-header {
  display: flex;
  gap: 1rem;
}

.excel-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.25);
  color: #4ade80;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

/* ==========================================================================
   MOBİL RESPONSIVE (max-width: 768px)
   ========================================================================== */
@media (max-width: 768px) {
  /* Header */
  .app-header {
    padding: 0.6rem 1rem;
  }
  .brand-text p {
    display: none;
  }
  .brand-text h1 {
    font-size: 0.95rem;
  }
  .time-display {
    display: none;
  }
  .header-actions {
    gap: 0.4rem;
  }
  .header-actions .btn {
    font-size: 0.78rem;
    padding: 0.35rem 0.6rem;
  }
  /* "Kulüp Ana Sayfası" yazısını mobilde gizle, sadece ikon kalsın */
  .hide-mobile {
    display: none;
  }

  /* Nav sekmeleri — yatay kaydırma, scrollbar gizli */
  .nav-tabs {
    padding: 0 0.75rem;
    gap: 0.25rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .nav-tabs::-webkit-scrollbar {
    display: none;
  }
  .nav-tab {
    font-size: 0.78rem;
    padding: 0.6rem 0.75rem;
    gap: 0.35rem;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .tab-badge {
    font-size: 0.65rem;
    padding: 0.1rem 0.35rem;
  }

  /* Ana içerik */
  .main-content {
    padding: 1rem 0.85rem;
  }

  /* Kamera kutusu */
  .camera-box {
    border-radius: var(--radius-md);
  }

  /* Butonlar */
  .btn {
    font-size: 0.85rem;
    padding: 0.6rem 1rem;
  }

  /* Toolbar sarmalama */
  .toolbar {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  /* Kart padding azalt */
  .card {
    padding: 1rem;
  }

  /* Öğrenci listesi kartları */
  .student-card {
    padding: 0.85rem;
  }

  /* Modal kutu genişliği */
  .modal-box {
    width: 95vw;
    max-width: 95vw;
    max-height: 90vh;
  }

  /* Form kontrolleri */
  .form-control {
    font-size: 16px; /* iOS zoom engelle */
  }

  /* QR Kart grid */
  .id-cards-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  /* Geçmiş tablosu yatay kaydırma */
  .history-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

@media (max-width: 480px) {
  .id-cards-grid {
    grid-template-columns: 1fr;
  }
  .brand-icon {
    width: 34px;
    height: 34px;
    font-size: 1.1rem;
  }
}

/* Yazdırma Stilleri */
@media print {
  body {
    background: #fff !important;
    color: #000 !important;
  }
  .app-header, .nav-tabs, .btn, .camera-box, .toolbar {
    display: none !important;
  }
  .archery-id-card {
    page-break-inside: avoid;
    border: 2px solid #000 !important;
    color: #000 !important;
    background: #fff !important;
    box-shadow: none !important;
    margin: 1rem !important;
  }
}