* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: Arial, Helvetica, sans-serif;
  background: #f2f5f8;
  color: #1f2937;
}

body {
  min-height: 100vh;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.hidden {
  display: none !important;
}

/* GİRİŞ EKRANI */

#loginScreen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px 18px;
  background:
    linear-gradient(rgba(244, 247, 250, 0.94), rgba(244, 247, 250, 0.94)),
    url("../assets/logo.png") center / 520px auto no-repeat;
}

.login-card {
  width: 100%;
  max-width: 520px;
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid #d8e0e8;
  border-radius: 18px;
  padding: 34px;
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
}

.school-header {
  text-align: center;
  margin-bottom: 28px;
}

.logo-area {
  height: 105px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

#schoolLogo {
  max-width: 100px;
  max-height: 100px;
  object-fit: contain;
}

.school-header h1 {
  margin: 0;
  font-size: 25px;
  letter-spacing: 0.6px;
  color: #17365d;
}

.school-header h2 {
  margin: 8px 0 5px;
  font-size: 20px;
  font-weight: 600;
}

.school-header p {
  margin: 0;
  color: #667085;
  font-size: 14px;
}

/* GİRİŞ SEKMELERİ */

.login-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 5px;
  margin-bottom: 24px;
  background: #edf1f5;
  border-radius: 12px;
}

.login-tab {
  border: 0;
  border-radius: 9px;
  padding: 12px 8px;
  background: transparent;
  color: #475467;
  font-weight: 600;
}

.login-tab.active {
  background: #ffffff;
  color: #17365d;
  box-shadow: 0 2px 7px rgba(15, 23, 42, 0.10);
}

/* FORM */

.login-panel label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 600;
}

.login-panel input,
.login-panel select {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  margin-bottom: 16px;
  border: 1px solid #cfd8e3;
  border-radius: 9px;
  background: #ffffff;
  outline: none;
}

.login-panel input:focus,
.login-panel select:focus {
  border-color: #315f91;
  box-shadow: 0 0 0 3px rgba(49, 95, 145, 0.12);
}

.primary-button {
  width: 100%;
  min-height: 48px;
  border: 0;
  border-radius: 9px;
  background: #17365d;
  color: #ffffff;
  font-weight: 700;
}

.primary-button:hover {
  background: #214a7a;
}

.primary-button:disabled {
  opacity: 0.65;
  cursor: wait;
}

.message {
  min-height: 22px;
  margin-top: 13px;
  text-align: center;
  font-size: 14px;
}

.message.error {
  color: #b42318;
}

.message.success {
  color: #067647;
}

/* UYGULAMA EKRANI */

#applicationScreen {
  min-height: 100vh;
  background: #f5f7fa;
}

.app-header {
  min-height: 68px;
  padding: 12px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: #17365d;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.16);
}

.app-header strong,
.app-header span {
  display: block;
}

.app-header strong {
  font-size: 17px;
}

.app-header span {
  margin-top: 3px;
  font-size: 13px;
  opacity: 0.82;
}

#logoutButton {
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  padding: 9px 16px;
  background: transparent;
  color: #ffffff;
}

#applicationContent {
  width: min(1180px, calc(100% - 32px));
  margin: 24px auto;
}

/* MOBİL */

@media (max-width: 600px) {
  #loginScreen {
    padding: 18px 12px;
  }

  .login-card {
    padding: 25px 19px;
    border-radius: 14px;
  }

  .school-header h1 {
    font-size: 21px;
  }

  .school-header h2 {
    font-size: 18px;
  }

  .app-header {
    padding: 12px 16px;
  }
}
/* =========================================================
   EFL 12.6.3 — Akademik Prestijli Görsel Katman
   İşlevsel giriş yapısı korunur; yalnız görsel düzen değişir.
   ========================================================= */
:root{--efl-navy:#082f55;--efl-blue:#0a659d;--efl-gold:#d8a43a;--efl-ink:#173a58;}
#loginScreen.efl-academic-login{
  min-height:100vh!important;padding:clamp(18px,3vw,42px)!important;
  display:flex!important;align-items:center!important;justify-content:center!important;
  background:
    linear-gradient(90deg,rgba(7,35,61,.25) 0%,rgba(7,35,61,.10) 38%,rgba(236,246,253,.40) 100%),
    url("../assets/login-bg.jpg") center/cover no-repeat fixed!important;
  position:relative;overflow:hidden;
}
#loginScreen.efl-academic-login::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(5,35,59,.08));
}
#loginScreen .efl-login-stage{
  width:min(1420px,100%);display:grid;grid-template-columns:minmax(360px,1fr) minmax(430px,560px);
  gap:clamp(30px,5vw,82px);align-items:center;position:relative;z-index:1;
}
#loginScreen .efl-login-hero{color:#fff;display:flex;align-items:flex-start;gap:26px;padding:28px 0;text-shadow:0 2px 14px rgba(0,29,52,.45)}
#loginScreen .efl-hero-logo{width:132px;height:132px;object-fit:contain;filter:drop-shadow(0 12px 20px rgba(0,25,47,.35));flex:0 0 auto}
#loginScreen .efl-hero-copy{padding-top:7px;max-width:560px}
#loginScreen .efl-hero-kicker{font-size:clamp(14px,1.3vw,19px);font-weight:800;letter-spacing:.22em;margin-bottom:9px}
#loginScreen .efl-hero-title{font-family:Georgia,"Times New Roman",serif;font-size:clamp(34px,4vw,61px);font-weight:700;line-height:1.02;letter-spacing:-.025em}
#loginScreen .efl-hero-rule{width:74px;height:3px;background:var(--efl-gold);margin:22px 0 18px;border-radius:4px;box-shadow:none}
#loginScreen .efl-hero-motto{font-family:Georgia,"Times New Roman",serif;font-size:clamp(23px,2.2vw,34px);line-height:1.2;font-weight:500}
#loginScreen .efl-hero-values{margin-top:28px;font-size:12px;font-weight:800;letter-spacing:.13em;opacity:.94}
#loginScreen .efl-hero-values span{color:#ffd36c;padding:0 8px}
#loginScreen .efl-hero-slogan{margin-top:18px;max-width:560px;font-family:Georgia,"Times New Roman",serif;font-size:clamp(24px,2.35vw,37px);line-height:1.22;font-style:italic;font-weight:600;color:#fff;text-shadow:0 3px 16px rgba(5,35,66,.45);letter-spacing:.01em}
#loginScreen .login-card{
  width:100%!important;max-width:560px!important;margin-left:auto!important;padding:34px 38px 32px!important;
  border-radius:26px!important;background:rgba(255,255,255,.94)!important;
  border:1px solid rgba(255,255,255,.82)!important;
  box-shadow:0 28px 80px rgba(5,37,64,.28),inset 0 1px 0 rgba(255,255,255,.9)!important;
  backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);
}
#loginScreen .login-logo{width:82px!important;height:82px!important;margin:0 auto 13px!important}
#loginScreen .login-card h1{font-family:Georgia,"Times New Roman",serif!important;font-size:29px!important;color:var(--efl-navy)!important}
#loginScreen .login-card h2{font-size:16px!important;text-transform:uppercase!important;letter-spacing:.11em!important;color:#48687f!important}
#loginScreen .login-subtitle{margin:7px 0 20px!important;color:#71869a!important}
#loginScreen .login-tabs{background:rgba(232,241,248,.82)!important;border-color:#d9e6ef!important;margin-bottom:21px!important}
#loginScreen .login-tabs button.active{color:var(--efl-navy)!important;box-shadow:0 5px 15px rgba(7,61,99,.12)!important}
#loginScreen .login-form input,#loginScreen .login-form select{background:rgba(255,255,255,.86)!important;border-color:#c9d8e4!important}
#loginScreen .login-form button{background:linear-gradient(135deg,#082f55 0%,#0a659d 100%)!important;border-radius:13px!important;box-shadow:0 10px 22px rgba(8,70,113,.22)!important}

/* Uygulama ekranlarında okul görselini koru; içerik okunabilir kalır. */
#applicationScreen{
  min-height:100vh;
  background:
    linear-gradient(rgba(244,248,251,.90),rgba(244,248,251,.94)),
    url("../assets/login-bg.jpg") center/cover no-repeat fixed!important;
}
#applicationScreen .app-header{background:rgba(255,255,255,.92)!important;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 5px 20px rgba(10,54,87,.08)}
#applicationContent{background:transparent!important}
#applicationContent .card,#applicationContent .control-box,#applicationContent .panel,#applicationContent section{backdrop-filter:saturate(110%)}

@media(max-width:980px){
  #loginScreen .efl-login-stage{grid-template-columns:1fr;max-width:600px;gap:14px}
  #loginScreen .efl-login-hero{justify-content:center;text-align:center;padding:4px 0 10px}
  #loginScreen .efl-hero-logo{width:90px;height:90px}
  #loginScreen .efl-hero-copy{padding-top:0}
  #loginScreen .efl-hero-rule{margin:14px auto 12px}
  #loginScreen .efl-hero-motto{font-size:23px}
  #loginScreen .efl-hero-values{margin-top:15px;font-size:10px}
  #loginScreen .efl-hero-slogan{margin-top:14px;font-size:24px}
  #loginScreen .login-card{margin:0 auto!important}
}
@media(max-width:620px){
  #loginScreen.efl-academic-login{padding:14px 10px!important;background-attachment:scroll!important}
  #loginScreen .efl-login-hero{display:none}
  #loginScreen .login-card{padding:25px 19px 24px!important;border-radius:21px!important}
  #applicationScreen{background-attachment:scroll!important}
}