/* ===== OPKO Tech Academic Theme v2 ===== */
:root{
  --bg: #f4fbff;
  --surface: rgba(255,255,255,0.9);
  --text: #071a2b;
  --muted: #4b6376;
  --border: rgba(7,26,43,0.12);

  --primary: #0048A8;  /* logo mavi */
  --accent:  #70B8C8;  /* logo turkuaz */
}

body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background:
    radial-gradient(900px 600px at 15% 0%, rgba(112,184,200,0.22), transparent 60%),
    radial-gradient(900px 600px at 85% 10%, rgba(0,72,168,0.10), transparent 55%),
    var(--bg);
  color: var(--text);
}

.wrap{
  width: min(1100px, calc(100% - 28px));
  margin: 0 auto;
  padding: 18px 0 60px;
}

.card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 22px;
  box-shadow: 0 18px 50px rgba(7,26,43,0.08);
  margin: 16px 0;
  backdrop-filter: blur(10px);
}

.card-soft{
  background: rgba(255,255,255,0.75);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px;
}

.muted{ color: var(--muted); }
.small{ font-size: 0.92rem; }

header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244,251,255,0.75);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

/* Modern nav pills */
.nav{
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 12px 10px;
}

.nav a{
  text-decoration: none;
  color: var(--text);
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(7,26,43,0.10);
  background: rgba(255,255,255,0.85);
}

.nav a:hover{
  border-color: rgba(112,184,200,0.55);
  background: rgba(112,184,200,0.12);
}

.nav a.active{
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid rgba(7,26,43,0.12);
  background: rgba(255,255,255,0.9);
  color: var(--text);
  text-decoration: none;
}

.btn-primary{
  border: none;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.btn-ghost{
  background: rgba(255,255,255,0.7);
}

.w-full{ width: 100%; }

/* HERO layout */
.hero-logo{
  width: min(560px, 95%);
  display: block;
  margin: 4px auto 12px;
}

.hero-title{
  text-align: center;
  margin: 4px 0 8px;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  letter-spacing: 0.2px;
}

.hero-sub{
  text-align: center;
  margin: 0 auto 14px;
  max-width: 820px;
  color: var(--muted);
}

.hero-actions{
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.hero-badges{
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.badge{
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(7,26,43,0.10);
  background: rgba(255,255,255,0.8);
  color: var(--muted);
}

.hero-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 10px;
}

.steps{ margin: 10px 0 0; padding-left: 18px; color: var(--muted); }

.ann-list{ display: grid; gap: 10px; }
.ann-list .ann-item{ border-left: 4px solid rgba(112,184,200,0.9); padding-left: 10px; }

@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; }
}

/* ===== Auth page (login) ===== */
/* ===== Auth page (login) ===== */
.auth-card{
  width: min(900px, 100%);
  margin: 30px auto 60px;
  padding: 28px;
}

.auth-title{
  margin: 0 0 6px;
  font-size: clamp(1.6rem, 2.5vw, 2rem);
}

.auth-sub{ margin: 0 0 18px; }

.auth-form{ display: grid; gap: 12px; }

.field{ display: grid; gap: 6px; }

.field label{
  font-weight: 700;
  color: rgba(7,26,43,0.85);
  letter-spacing: 0.2px;
}

.field input{
  width: 100%;
  padding: 14px 14px;
  border-radius: 14px;
  border: 1px solid rgba(7,26,43,0.14);
  background: rgba(255,255,255,0.9);
  font-size: 1rem;
  outline: none;
}

.field input:focus{
  border-color: rgba(112,184,200,0.9);
  box-shadow: 0 0 0 4px rgba(112,184,200,0.18);
}

.auth-actions{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.auth-actions .btn{ min-width: 140px; }

.auth-footer{
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 10px;
  padding-top: 12px;
  border-top: 1px solid rgba(7,26,43,0.10);
}

/* ===== Login minimal header (logo + brand) ===== */
.auth-header{
  display: flex;
  justify-content: center;
  padding: 22px 0 4px;
}

.auth-brand{
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.auth-brand img{
  height: 56px;
  width: auto;
}

.auth-brand span{
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.6px;
  color: var(--primary);
}

button.btn{ cursor: pointer; }
button.btn-primary{ border: none; }

/* Small button variant */
.btn-sm{
  padding: 9px 12px;
  border-radius: 12px;
  font-size: 0.95rem;
}

.card-action{
  display: flex;
  justify-content: center;
  margin-top: 14px;
}

.hidden { 
  display: none !important; 
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.module-card {
  background: #fff;
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,.08);
  transition: all .25s ease;
  position: relative;
}

.module-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(0,0,0,.12);
}

.module-card.locked {
  opacity: .6;
}

.module-card.completed {
  border: 2px solid #4CAF50;
}

.module-status {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
}

.module-status.locked {
  background: #ffeaea;
  color: #c62828;
}

.module-status.open {
  background: #e3f2fd;
  color: #1565c0;
}

.module-status.done {
  background: #e8f5e9;
  color: #2e7d32;
}

.progress-box {
  background: linear-gradient(135deg,#4f8cff,#6bc1ff);
  color: #fff;
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 24px;
}

.progress-bar {
  height: 8px;
  background: rgba(255,255,255,.3);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: #fff;
  width: 0%;
  transition: width .4s ease;
}

.module-index {
  font-size: 22px;
  font-weight: 800;
  color: #4f8cff;
}