/* =============================================================
   LGS KAYIT OTOMASYONU v2 — Public Styles
   Ses seviyesi: Sakin, profesyonel, güven veren.
   Renk stratejisi: Dengeli — tek vurgu rengi (mavi), gerisi nötr.
   ============================================================= */

/* ----- Değişkenler ----- */
:root {
  --lko-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --lko-primary: #1B3A5C;
  --lko-primary-dark: #0F2440;
  --lko-primary-light: #2563A8;
  --lko-accent: #3B82F6;
  --lko-accent-subtle: #EFF6FF;
  --lko-success: #059669;
  --lko-success-bg: #ECFDF5;
  --lko-success-text: #065F46;
  --lko-warning: #D97706;
  --lko-warning-bg: #FFFBEB;
  --lko-warning-text: #92400E;
  --lko-danger: #DC2626;
  --lko-danger-bg: #FEF2F2;
  --lko-danger-text: #991B1B;
  --lko-info: #2563EB;
  --lko-info-bg: #EFF6FF;
  --lko-info-text: #1E40AF;
  --lko-bg: #F8FAFC;
  --lko-surface: #FFFFFF;
  --lko-border: #E2E8F0;
  --lko-border-hover: #CBD5E1;
  --lko-ink: #0F172A;
  --lko-ink-secondary: #475569;
  --lko-ink-muted: #94A3B8;
  --lko-radius: 8px;
  --lko-radius-sm: 6px;
  --lko-radius-card: 12px;
  --lko-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --lko-shadow-md: 0 4px 12px rgba(0,0,0,0.06), 0 2px 4px rgba(0,0,0,0.04);
  --lko-shadow-lg: 0 8px 24px rgba(0,0,0,0.08);
  --lko-transition: 180ms ease;
  --lko-z-dropdown: 100;
  --lko-z-sticky: 200;
  --lko-z-modal-bg: 300;
  --lko-z-modal: 400;
  --lko-z-toast: 500;
}

/* ============================================================
   BASE
   ============================================================ */
.lko-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 24px;
  border: none;
  border-radius: var(--lko-radius);
  font-family: var(--lko-font);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--lko-transition), box-shadow var(--lko-transition);
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}
.lko-btn:hover { opacity: 0.92; }
.lko-btn:active { transform: translateY(0); }
.lko-btn-primary {
  background: var(--lko-primary);
  color: #fff;
}
.lko-btn-primary:hover { background: var(--lko-primary-dark); color: #fff; }
.lko-btn-secondary {
  background: var(--lko-bg);
  color: var(--lko-ink);
  border: 1px solid var(--lko-border);
}
.lko-btn-secondary:hover { background: var(--lko-border); }
.lko-btn-danger { background: var(--lko-danger); color: #fff; }
.lko-btn-success { background: var(--lko-success); color: #fff; }
.lko-btn-sm { padding: 6px 16px; font-size: 13px; }
.lko-btn-block { display: flex; width: 100%; justify-content: center; }
.lko-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ----- Alert ----- */
.lko-alert {
  padding: 12px 16px;
  border-radius: var(--lko-radius);
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.5;
}
.lko-alert-success { background: var(--lko-success-bg); color: var(--lko-success-text); }
.lko-alert-danger { background: var(--lko-danger-bg); color: var(--lko-danger-text); }
.lko-alert-warning { background: var(--lko-warning-bg); color: var(--lko-warning-text); }
.lko-alert-info { background: var(--lko-info-bg); color: var(--lko-info-text); }

/* ----- Badge ----- */
.lko-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
}
.lko-badge-success { background: var(--lko-success-bg); color: var(--lko-success-text); }
.lko-badge-info { background: var(--lko-info-bg); color: var(--lko-info-text); }
.lko-badge-warning { background: var(--lko-warning-bg); color: var(--lko-warning-text); }
.lko-badge-danger { background: var(--lko-danger-bg); color: var(--lko-danger-text); }
.lko-badge-default { background: var(--lko-bg); color: var(--lko-ink-secondary); }

/* ============================================================
   FORM ELEMANLARI
   ============================================================ */
.lko-form-group {
  margin-bottom: 18px;
}
.lko-form-group label {
  display: block;
  margin-bottom: 5px;
  font-size: 13px;
  font-weight: 600;
  color: var(--lko-ink);
}
.lko-form-group input[type="text"],
.lko-form-group input[type="email"],
.lko-form-group input[type="tel"],
.lko-form-group input[type="password"],
.lko-form-group input[type="number"],
.lko-form-group input[type="date"],
.lko-form-group input[type="datetime-local"],
.lko-form-group textarea,
.lko-form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--lko-border);
  border-radius: var(--lko-radius-sm);
  font-family: var(--lko-font);
  font-size: 14px;
  color: var(--lko-ink);
  background: var(--lko-surface);
  box-sizing: border-box;
  transition: border-color var(--lko-transition), box-shadow var(--lko-transition);
}
.lko-form-group input:focus,
.lko-form-group textarea:focus,
.lko-form-group select:focus {
  border-color: var(--lko-accent);
  box-shadow: 0 0 0 2px rgba(59,130,246,0.15);
  outline: none;
}
.lko-form-group input[readonly],
.lko-form-group input:disabled {
  background: var(--lko-bg);
  color: var(--lko-ink-muted);
}
.lko-form-group .lko-field-desc {
  font-size: 12px;
  color: var(--lko-ink-muted);
  margin-top: 4px;
}
.lko-form-row {
  display: flex;
  gap: 16px;
}
@media (max-width: 640px) {
  .lko-form-row { flex-direction: column; gap: 0; }
}
.lko-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 400 !important;
  cursor: pointer;
  font-size: 14px;
  line-height: 1.4;
}
.lko-checkbox-label input[type="checkbox"] {
  width: 17px;
  height: 17px;
  accent-color: var(--lko-accent);
}

/* ============================================================
   LOGIN & FORGOT PASSWORD
   ============================================================ */
.lko-login-wrapper,
.lko-forgot-password-wrapper {
  max-width: 440px;
  margin: 40px auto;
  background: var(--lko-surface);
  border: 1px solid var(--lko-border);
  border-radius: var(--lko-radius-card);
  padding: 36px 32px 28px;
  box-shadow: var(--lko-shadow-md);
}
.lko-login-wrapper h2,
.lko-forgot-password-wrapper h2 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 700;
  color: var(--lko-ink);
}
.lko-login-wrapper > p,
.lko-forgot-password-wrapper > p {
  color: var(--lko-ink-secondary);
  font-size: 14px;
  margin: 4px 0 24px;
}
.lko-login-links {
  margin-top: 20px;
  text-align: center;
  display: flex;
  justify-content: center;
  gap: 12px;
  font-size: 14px;
  color: var(--lko-ink-secondary);
}
.lko-login-links a {
  color: var(--lko-accent);
  text-decoration: none;
  font-weight: 500;
}
.lko-login-links a:hover { text-decoration: underline; }

/* ============================================================
   REGISTER
   ============================================================ */
.lko-register-wrapper {
  max-width: 920px !important;
  margin: 32px auto;
  background: var(--lko-surface);
  border: 1px solid var(--lko-border);
  border-radius: var(--lko-radius-card);
  padding: 36px;
  box-shadow: var(--lko-shadow-md);
}
.lko-register-wrapper h2 {
  margin: 0 0 4px;
  font-size: 24px;
  font-weight: 700;
  color: var(--lko-ink);
}
.lko-register-wrapper > p.subtitle {
  color: var(--lko-ink-secondary);
  font-size: 14px;
  margin: 4px 0 24px;
}
.lko-register-wrapper h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--lko-primary);
  margin: 0 0 20px;
}
.lko-reg-section {
  border: 1px solid var(--lko-border);
  border-radius: var(--lko-radius-card);
  margin-bottom: 20px;
  overflow: hidden;
  background: var(--lko-surface);
}
.lko-reg-section-header {
  padding: 14px 20px;
  background: var(--lko-bg);
  border-bottom: 1px solid var(--lko-border);
  display: flex;
  align-items: center;
  gap: 8px;
}
.lko-reg-section-header h4 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--lko-ink);
}
.lko-reg-section-icon { font-size: 16px; line-height: 1; }
.lko-reg-section-body { padding: 20px; }
.lko-reg-section-submit {
  background: var(--lko-bg);
  padding: 20px;
  border: 1px solid var(--lko-border);
  border-radius: var(--lko-radius-card);
}
.lko-step { margin-top: 16px; }

/* Input + action button */
.lko-input-with-action {
  display: flex;
  gap: 8px;
  align-items: center;
}
.lko-input-with-action select { flex: 1; }
.lko-velayet-box {
  margin-top: 12px;
  padding: 12px 16px;
  background: var(--lko-accent-subtle);
  border-radius: var(--lko-radius);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.lko-velayet-box-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--lko-info-text);
}
.lko-velayet-box-options {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.lko-velayet-box-options label {
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.lko-readonly-field {
  background: var(--lko-bg) !important;
  color: var(--lko-ink-secondary) !important;
}
.lko-btn-full { width: 100%; padding: 12px; font-size: 15px; font-weight: 600; }

/* Form Row 3-column */
@media (min-width: 640px) {
  .lko-reg-section-body .lko-form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 14px;
  }
  .lko-reg-section-body .lko-form-row .lko-form-group { margin-bottom: 0; }
}

/* ============================================================
   VISITOR PAGE
   ============================================================ */
.lko-visitor-page {
  display: flex;
  gap: 28px;
  max-width: 1100px;
  margin: 32px auto;
}
.lko-visitor-sidebar {
  width: 300px;
  flex-shrink: 0;
}
.lko-visitor-content {
  flex: 1;
  min-width: 0;
}
@media (max-width: 768px) {
  .lko-visitor-page { flex-direction: column; }
  .lko-visitor-sidebar { width: 100%; }
}
.lko-sidebar-card {
  background: var(--lko-surface);
  border: 1px solid var(--lko-border);
  border-radius: var(--lko-radius-card);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--lko-shadow);
}
.lko-sidebar-card h3 {
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--lko-ink-muted);
}
.lko-sidebar-card > .lko-btn { margin-top: 4px; }
.lko-sidebar-card > .lko-btn + .lko-btn { margin-top: 8px; }
.lko-info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--lko-border);
  gap: 12px;
}
.lko-info-row:last-child { border-bottom: none; }
.lko-info-label { font-size: 13px; color: var(--lko-ink-secondary); }
.lko-info-value { font-size: 13px; font-weight: 600; color: var(--lko-ink); white-space: nowrap; }

/* ============================================================
   PARENT PANEL
   ============================================================ */
.lko-parent-panel {
  max-width: 1100px;
  margin: 32px auto;
}
.lko-panel-nav {
  display: flex;
  gap: 0;
  background: var(--lko-surface);
  border: 1px solid var(--lko-border);
  border-radius: var(--lko-radius-card) var(--lko-radius-card) 0 0;
  overflow-x: auto;
  box-shadow: var(--lko-shadow);
}
.lko-panel-nav a {
  padding: 12px 20px;
  text-decoration: none;
  color: var(--lko-ink-secondary);
  font-weight: 500;
  font-size: 13px;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color var(--lko-transition), border-color var(--lko-transition);
  flex-shrink: 0;
}
.lko-panel-nav a:hover { color: var(--lko-ink); }
.lko-panel-nav a.active {
  color: var(--lko-primary);
  border-bottom-color: var(--lko-accent);
  font-weight: 600;
}
.lko-panel-content {
  background: var(--lko-surface);
  border: 1px solid var(--lko-border);
  border-top: none;
  border-radius: 0 0 var(--lko-radius-card) var(--lko-radius-card);
  padding: 28px;
  box-shadow: var(--lko-shadow);
}
.lko-panel-content h2 {
  margin: 0 0 20px;
  font-size: 20px;
  font-weight: 700;
  color: var(--lko-ink);
}
.lko-panel-content h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--lko-ink);
  margin: 28px 0 16px;
}

/* Profile cards (anne/baba/acil) */
.lko-profile-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  margin-top: 24px;
}
.lko-profile-card {
  background: var(--lko-surface);
  border: 1px solid var(--lko-border);
  border-radius: var(--lko-radius-card);
  padding: 20px;
}
.lko-profile-card h4 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--lko-ink);
}
.lko-profile-card table {
  width: 100%;
  font-size: 13px;
  border-collapse: collapse;
}
.lko-profile-card table td {
  padding: 4px 8px 4px 0;
  vertical-align: top;
}
.lko-profile-card table td:first-child {
  color: var(--lko-ink-muted);
  white-space: nowrap;
  font-weight: 500;
  width: 1%;
}
.lko-profile-card table td:last-child {
  color: var(--lko-ink);
}
.lko-profile-card .velayet-badge {
  margin-top: 10px;
  padding: 8px 12px;
  background: var(--lko-accent-subtle);
  border-radius: var(--lko-radius-sm);
  font-size: 12px;
  color: var(--lko-info-text);
}

/* Student cards */
.lko-student-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px;
  margin: 16px 0;
}
.lko-student-card {
  background: var(--lko-surface);
  border: 1px solid var(--lko-border);
  border-radius: var(--lko-radius-card);
  padding: 20px;
  box-shadow: var(--lko-shadow);
  transition: border-color var(--lko-transition);
}
.lko-student-card:hover {
  border-color: var(--lko-border-hover);
}
.lko-student-card h3 {
  margin: 0 0 12px !important;
  font-size: 16px !important;
  font-weight: 600 !important;
  color: var(--lko-ink) !important;
}
.lko-student-info p {
  margin: 4px 0;
  font-size: 13px;
  color: var(--lko-ink-secondary);
  display: flex;
  justify-content: space-between;
  gap: 8px;
}
.lko-student-actions {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ============================================================
   TABLES (Public)
   ============================================================ */
.lko-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.lko-table th,
.lko-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--lko-border);
  text-align: left;
}
.lko-table th {
  background: var(--lko-bg);
  font-weight: 600;
  color: var(--lko-ink-secondary);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.lko-table tr:hover td { background: var(--lko-bg); }

/* ============================================================
   ASIL/YEDEK LISTE TABLOSU
   ============================================================ */
.lko-liste-wrapper {
  overflow-x: auto;
  margin: 16px 0;
  border: 1px solid var(--lko-border);
  border-radius: var(--lko-radius-card);
  box-shadow: var(--lko-shadow);
}
.lko-liste-tablo {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.lko-liste-tablo th {
  background: var(--lko-primary);
  color: #fff;
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
}
.lko-liste-tablo td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--lko-border);
  font-size: 13px;
  color: var(--lko-ink-secondary);
}
.lko-liste-tablo tr:nth-child(even) td { background: var(--lko-bg); }
.lko-liste-tablo tr:hover td { background: var(--lko-accent-subtle); }
.lko-liste-tablo td:first-child {
  font-weight: 700;
  color: var(--lko-accent);
  width: 60px;
  text-align: center;
}
.lko-liste-bos {
  color: var(--lko-ink-muted);
  font-style: italic;
  padding: 24px;
  text-align: center;
}

/* ============================================================
   POPUP / MODAL
   ============================================================ */
.lko-popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  z-index: var(--lko-z-modal-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}
.lko-popup-content {
  background: var(--lko-surface);
  max-width: 640px;
  width: 90%;
  max-height: 80vh;
  border-radius: var(--lko-radius-card);
  padding: 28px;
  overflow-y: auto;
  position: relative;
  z-index: var(--lko-z-modal);
  box-shadow: var(--lko-shadow-lg);
}
.lko-popup-close {
  position: absolute;
  top: 12px;
  right: 14px;
  font-size: 22px;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--lko-ink-muted);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--lko-transition);
}
.lko-popup-close:hover { background: var(--lko-bg); color: var(--lko-ink); }

/* ============================================================
   LOADING
   ============================================================ */
.lko-loading {
  opacity: 0.5;
  pointer-events: none;
}

/* ============================================================
   FOOTER
   ============================================================ */
.lko-page-footer-text {
  margin-top: 28px;
  padding: 12px 0;
  border-top: 1px solid var(--lko-border);
  font-size: 12px;
  color: var(--lko-ink-muted);
}
.lko-page-footer-text p { margin: 0; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 600px) {
  .lko-register-wrapper,
  .lko-login-wrapper,
  .lko-forgot-password-wrapper {
    padding: 20px;
    border-radius: 0;
    border-left: none;
    border-right: none;
    box-shadow: none;
    margin: 0;
  }
  .lko-panel-content { padding: 16px; }
  .lko-panel-nav a { padding: 10px 14px; font-size: 12px; }
  .lko-parent-panel { margin: 0; }
  .lko-visitor-page { margin: 16px 0; }
  .lko-register-wrapper { margin: 0; }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .lko-panel-nav,
  .lko-student-actions,
  .lko-btn { display: none !important; }
  .lko-register-wrapper,
  .lko-login-wrapper,
  .lko-forgot-password-wrapper,
  .lko-panel-content { box-shadow: none; border: 1px solid #ccc; }
}