html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

:root {
  --lms-ink: #152033;
  --lms-muted: #5b677a;
  --lms-surface: #ffffff;
  --lms-line: #d7e0ec;
  --lms-accent: #1f4e79;
  --lms-accent-soft: #e8f1f8;
  --lms-drop: #f3f7fb;
}

body {
  color: var(--lms-ink);
  background:
    radial-gradient(ellipse 80% 50% at 0% -10%, #d9e8f5 0%, transparent 55%),
    linear-gradient(180deg, #eef3f8 0%, #f7f9fc 220px, #ffffff 100%);
}

.navbar-brand {
  letter-spacing: 0.02em;
}

.letter-spacing {
  letter-spacing: 0.08em;
}

.panel-surface {
  background: var(--lms-surface);
  border: 1px solid var(--lms-line);
  border-radius: 1rem;
  box-shadow: 0 10px 30px rgba(21, 32, 51, 0.04);
}

.footer {
  background-color: #f8f9fa;
}

.video-dropzone {
  position: relative;
  border: 1.5px dashed #9db4c9;
  border-radius: 0.9rem;
  background: var(--lms-drop);
  min-height: 210px;
  padding: 1.5rem;
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}

.video-dropzone:hover,
.video-dropzone:focus {
  border-color: var(--lms-accent);
  background: var(--lms-accent-soft);
  outline: none;
}

.video-dropzone.is-dragover {
  border-color: var(--lms-accent);
  background: #dceaf5;
  transform: translateY(-1px);
}

.video-dropzone.has-file {
  border-style: solid;
  background: #fff;
}

.video-file-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}

.video-dropzone-idle {
  text-align: center;
  padding: 1.25rem 0.5rem;
  color: var(--lms-ink);
}

.video-dropzone-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 0.85rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--lms-accent);
  background: #fff;
  border: 1px solid var(--lms-line);
}

.video-preview-empty {
  min-height: 180px;
  border-radius: 0.75rem;
  border: 1px dashed var(--lms-line);
  display: grid;
  place-items: center;
  background: var(--lms-drop);
  padding: 1.5rem;
  text-align: center;
}

.video-preview-player {
  border-radius: 0.75rem;
  background: #0f1720;
  max-height: 280px;
  object-fit: contain;
}

.video-meta-grid dt,
.video-meta-grid dd {
  margin-bottom: 0.4rem;
}

.video-card-thumb {
  position: relative;
  height: 140px;
  border-radius: 0.75rem;
  overflow: hidden;
  background: linear-gradient(145deg, #1f4e79, #2f6ea3 55%, #78a7cb);
  color: #fff;
}

.video-card-placeholder {
  height: 100%;
  display: grid;
  place-items: center;
  opacity: 0.9;
}

.video-card-ext {
  position: absolute;
  top: 0.65rem;
  left: 0.65rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
}

.btn-primary {
  background-color: var(--lms-accent);
  border-color: var(--lms-accent);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: #183d5f;
  border-color: #183d5f;
}

.egitim-player {
  max-height: 70vh;
  background: #0b1220;
  display: block;
}

.egitim-cover-preview {
  max-height: 180px;
  width: 100%;
  object-fit: cover;
}

.egitim-card-cover {
  height: 150px;
  background: linear-gradient(145deg, #1f4e79, #2f6ea3 55%, #78a7cb);
  overflow: hidden;
}

.egitim-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.egitim-card-cover-fallback {
  height: 100%;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 1rem;
  text-align: center;
}

.rapor-link-card {
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.rapor-link-card:hover {
  border-color: var(--lms-accent);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(21, 32, 51, 0.08);
}

.giris-logo {
  width: 112px;
  height: 112px;
  object-fit: contain;
}

.giris-uni-adi {
  letter-spacing: 0.06em;
  color: var(--lms-ink);
  font-size: 0.95rem;
}

.ana-sayfa-logo {
  width: 72px;
  height: 72px;
  object-fit: contain;
}

.ana-sayfa-hero {
  background: linear-gradient(135deg, #ffffff 0%, var(--lms-accent-soft) 100%);
}