/* ============================================================
   DrivingSchoolJihlava — elearn.css
   eLearning sekce: blue + white, Inter font
   ============================================================ */

:root {
  --blue:       #2563eb;
  --blue-dark:  #1e40af;
  --blue-light: #dbeafe;
  --gray-100:   #f3f4f6;
  --gray-200:   #e5e7eb;
  --gray-600:   #4b5563;
  --gray-800:   #1f2937;
  --radius:     8px;
  --shadow:     0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-md:  0 4px 12px rgba(0,0,0,.14);
}

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

body {
  font-family: 'Inter', system-ui, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--gray-800);
  background: var(--gray-100);
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- HEADER ---- */
.el-header {
  background: var(--blue-dark);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
}
.el-header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  min-height: 54px;
  flex-wrap: nowrap;
}

.el-logo {
  color: #fff;
  font-weight: 700;
  font-size: .95rem;
  white-space: nowrap;
  flex-shrink: 0;
}
.el-logo:hover { text-decoration: none; opacity: .85; }

.el-subbrand {
  color: var(--blue-light);
  font-size: .75rem;
  font-weight: 600;
  padding: .15rem .45rem;
  background: rgba(255,255,255,.15);
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ---- NAV ---- */
.el-nav {
  display: flex;
  gap: .15rem;
  flex: 1;
  flex-wrap: wrap;
  min-width: 0;
}
.el-nav a {
  color: rgba(255,255,255,.82);
  font-size: .8rem;
  font-weight: 500;
  padding: .3rem .65rem;
  border-radius: 4px;
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.el-nav a:hover,
.el-nav a.active {
  color: #fff;
  background: rgba(255,255,255,.2);
  text-decoration: none;
}

/* ---- USER INFO (right side of header) ---- */
.el-user-info {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .78rem;
  flex-shrink: 0;
  white-space: nowrap;
}
.el-user-name {
  color: rgba(255,255,255,.8);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.el-lang {
  display: flex;
  gap: .15rem;
}
.el-lang a {
  color: rgba(255,255,255,.65);
  padding: .2rem .4rem;
  border-radius: 3px;
  font-size: .75rem;
  font-weight: 600;
}
.el-lang a.active,
.el-lang a:hover {
  color: #fff;
  background: rgba(255,255,255,.2);
  text-decoration: none;
}
.el-logout-btn {
  background: rgba(255,255,255,.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 4px;
  padding: .25rem .65rem;
  font-size: .75rem;
  cursor: pointer;
  font-family: inherit;
  transition: background .15s;
}
.el-logout-btn:hover { background: rgba(255,255,255,.25); }

/* ---- HAMBURGER (mobile) ---- */
.el-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
  color: #fff;
  margin-left: auto;
  flex-shrink: 0;
}
.el-menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  margin: 4px 0;
  border-radius: 2px;
}

/* ---- MAIN CONTENT ---- */
.el-main {
  max-width: 1240px;
  margin: 1.75rem auto;
  padding: 0 1.25rem 3rem;
}
.el-page-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 1.25rem;
  padding-bottom: .6rem;
  border-bottom: 2px solid var(--blue-light);
}

/* ---- CARD ---- */
.el-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}
.el-card h2 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--blue-dark);
  margin-bottom: 1rem;
}

/* ---- CONTENT TYPOGRAPHY ---- */
.el-card ul,
.el-card ol {
  padding-left: 1.5rem;
  margin: .75rem 0;
}
.el-card li { margin-bottom: .35rem; }

.el-card blockquote,
blockquote {
  border-left: 3px solid var(--blue);
  padding: .5rem 1rem;
  margin: .75rem 0;
  color: var(--gray-600);
}

.el-card b, .el-card strong { color: var(--gray-800); }

.el-card br { display: block; content: ''; margin-top: .35rem; }

/* ---- TABLE ---- */
.el-table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
th {
  background: var(--blue-dark);
  color: #fff;
  padding: .55rem 1rem;
  text-align: left;
  font-weight: 600;
}
td {
  padding: .5rem 1rem;
  border-bottom: 1px solid var(--gray-200);
}
tr:hover td { background: var(--gray-100); }

/* ---- BUTTONS ---- */
.el-btn {
  display: inline-block;
  padding: .6rem 1.25rem;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-align: center;
  transition: background .15s;
  text-decoration: none;
}
.el-btn:hover { background: var(--blue-dark); color: #fff; text-decoration: none; }
.el-btn-sm {
  font-size: .85rem;
  padding: .35rem .85rem;
}
.el-btn-outline {
  background: transparent;
  color: var(--blue);
  border: 1.5px solid var(--blue);
}
.el-btn-outline:hover { background: var(--blue); color: #fff; }

/* ---- ACCOUNT INFO (main page) ---- */
.el-account-info {
  font-size: .8rem;
  color: var(--gray-600);
  text-align: right;
  margin-top: 1.5rem;
  padding-top: .75rem;
  border-top: 1px solid var(--gray-200);
}

/* ---- SECTION HEADING inside card ---- */
.el-section-label {
  font-weight: 700;
  font-size: 1rem;
  color: var(--blue-dark);
  margin: 1.25rem 0 .5rem;
}

/* ---- BADGE ---- */
.el-badge {
  display: inline-block;
  padding: .15rem .5rem;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 600;
}
.el-badge-blue { background: var(--blue-light); color: var(--blue-dark); }

/* ---- FOOTER ---- */
.el-footer {
  background: var(--blue-dark);
  color: rgba(255,255,255,.65);
  text-align: center;
  padding: 1.1rem;
  font-size: .78rem;
  margin-top: 3rem;
}
.el-footer a { color: rgba(255,255,255,.85); }
.el-footer a:hover { color: #fff; text-decoration: none; }

/* ---- LOGIN PAGE ---- */
.el-login-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue) 100%);
}
.el-login-header {
  text-align: center;
  padding: 2.5rem 1.5rem .5rem;
  color: #fff;
}
.el-login-logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
}
.el-login-logo:hover { text-decoration: none; opacity: .85; }
.el-login-sub {
  color: rgba(255,255,255,.8);
  font-size: .85rem;
  margin-top: .3rem;
}
.el-login-box {
  background: #fff;
  border-radius: var(--radius);
  padding: 2rem 2.25rem;
  width: 100%;
  max-width: 420px;
  margin: 1.5rem auto;
  box-shadow: var(--shadow-md);
}
.el-login-box h1 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 1.5rem;
  text-align: center;
}
.el-form-group {
  margin-bottom: 1rem;
}
.el-form-group label {
  display: block;
  font-size: .85rem;
  font-weight: 500;
  margin-bottom: .35rem;
  color: var(--gray-800);
}
.el-form-group input {
  width: 100%;
  padding: .6rem .85rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color .15s, box-shadow .15s;
}
.el-form-group input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
.el-login-submit {
  width: 100%;
  padding: .7rem;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background .15s;
  margin-top: .5rem;
}
.el-login-submit:hover { background: var(--blue-dark); }
.el-login-spinner { text-align: center; margin-top: .75rem; display: none; }
.el-login-notice {
  font-size: .72rem;
  color: var(--gray-600);
  line-height: 1.5;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-200);
}
.el-login-notice a { color: var(--gray-600); }
.el-login-footer {
  text-align: center;
  padding: 1.5rem;
  color: rgba(255,255,255,.55);
  font-size: .75rem;
  margin-top: auto;
}
.el-login-footer a { color: rgba(255,255,255,.8); }

/* ---- INDEX (splash) PAGE ---- */
.el-index-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue) 100%);
  color: #fff;
  padding: 2rem;
}
.el-index-logo {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: .4rem;
}
.el-index-sub { color: rgba(255,255,255,.8); margin-bottom: 2rem; }
.el-index-text {
  max-width: 420px;
  color: rgba(255,255,255,.9);
  margin-bottom: 2rem;
  font-size: .95rem;
}
.el-index-btn {
  display: inline-block;
  padding: .75rem 2.5rem;
  background: #fff;
  color: var(--blue-dark);
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: opacity .15s;
  text-decoration: none;
}
.el-index-btn:hover { opacity: .9; text-decoration: none; color: var(--blue-dark); }
.el-index-back { margin-top: 2rem; font-size: .8rem; color: rgba(255,255,255,.6); }
.el-index-back a { color: rgba(255,255,255,.85); }

/* ---- RESPONSIVE ---- */
@media (max-width: 860px) {
  .el-header-inner { flex-wrap: wrap; min-height: auto; padding: .5rem 1rem; }
  .el-menu-toggle { display: block; }
  .el-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    padding-bottom: .5rem;
    order: 10;
  }
  .el-nav.open { display: flex; }
  .el-nav a { padding: .45rem .75rem; }
  .el-user-info { order: 5; margin-left: auto; }
  .el-logo, .el-subbrand { order: 1; }
  .el-menu-toggle { order: 2; }
}
@media (max-width: 480px) {
  .el-main { padding: 0 .75rem 2rem; }
  .el-card { padding: 1.1rem 1rem; }
  .el-login-box { padding: 1.5rem 1.25rem; }
}