/* ========================================
   SDK DESIGN - Yellow/Black Brand Colors
   Bootstrap 5.3 Compatible
   ======================================== */

:root {
  --sdk-yellow: #FFE600;
  --sdk-yellow-dark: #E6CF00;
  --sdk-yellow-light: #FFF9CC;
  --sdk-black: #1a1a1a;
  --sdk-dark: #2d2d2d;
  --sdk-gray: #6c757d;
  --sdk-light: #f8f9fa;
  --sdk-white: #ffffff;
}

/* ---------- RESET SECTION PADDING ---------- */
section { padding: 1.5rem 0 !important; }
section#services { padding: 0.5rem 0 1.5rem 0 !important; }
.page-section { padding: 1.5rem 0 !important; }

/* ---------- TYPOGRAPHY ---------- */
body {
  font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--sdk-black);
  line-height: 1.7;
  font-size: 15px;
  background: var(--sdk-white);
}

h1, h2, h3, h4, h5, h6 { color: var(--sdk-black); font-weight: 700; }
h1 { font-size: 1.8rem; margin-bottom: 1rem; }

a { color: var(--sdk-black); transition: color 0.2s; }
a:hover { color: var(--sdk-dark); }
.content a { text-decoration: underline; }
.content a:hover { color: var(--sdk-yellow-dark); }

/* ---------- NAVBAR ---------- */
#mainNav {
  padding: 0.4rem 1rem;
  border-bottom: 4px solid var(--sdk-yellow);
  background: var(--sdk-white) !important;
}

.nav-link {
  font-weight: 600 !important;
  font-size: 13px !important;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.5rem 0.7rem !important;
  color: var(--sdk-black) !important;
  border-radius: 4px;
  transition: all 0.2s !important;
}
.nav-link:hover, .nav-item.current .nav-link {
  background: var(--sdk-yellow) !important;
  color: var(--sdk-black) !important;
}

.dropdown-menu {
  border: none;
  border-radius: 0 0 8px 8px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
  border-top: 3px solid var(--sdk-yellow);
  padding: 0.3rem 0;
  animation: fadeIn 0.15s;
}
.dropdown-item {
  padding: 0.5rem 1.2rem;
  font-size: 14px;
  font-weight: 500;
}
.dropdown-item:hover, .dropdown-item:focus {
  background: var(--sdk-yellow-light);
  color: var(--sdk-black);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- HERO / MASTHEAD ---------- */
header.masthead {
  padding: 9rem 0 4rem 0;
  background-size: cover;
  background-position: center;
  position: relative;
}
header.masthead::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(26,26,26,0.88), rgba(45,45,45,0.75));
}
header.masthead .container { position: relative; z-index: 1; }
header.masthead p.text-light { font-size: 1.1rem; max-width: 650px; opacity: 0.9; }
header.masthead .h2 { 
  font-size: 2.2rem;
  border-left: 5px solid var(--sdk-yellow);
  padding-left: 1rem;
}

/* ---------- BUTTONS ---------- */
.btn { border-radius: 5px; font-weight: 600; transition: all 0.2s; font-size: 14px; }

.btn-info, .btn-primary {
  background: var(--sdk-black) !important;
  border-color: var(--sdk-black) !important;
  color: var(--sdk-yellow) !important;
}
.btn-info:hover, .btn-primary:hover {
  background: var(--sdk-dark) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.btn-warning {
  background: var(--sdk-yellow) !important;
  border-color: var(--sdk-yellow) !important;
  color: var(--sdk-black) !important;
  font-weight: 700;
}
.btn-warning:hover {
  background: var(--sdk-yellow-dark) !important;
  border-color: var(--sdk-yellow-dark) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255,230,0,0.3);
}

.btn-success { background: #38a169; border-color: #38a169; }
.btn-dark { background: var(--sdk-black); border-color: var(--sdk-black); }
.btn-outline-danger { border-width: 2px; }

/* ---------- LEISTUNGEN ICONS ---------- */
.fa-stack { transition: transform 0.2s; }
.fa-stack:hover { transform: scale(1.1); }
.fa-stack-2x.text-info { color: var(--sdk-black) !important; }
.fa-stack-2x.text-primary { color: var(--sdk-dark) !important; }
.fa-stack-2x.text-success { color: #38a169 !important; }
.fa-stack-2x.text-dark { color: var(--sdk-black) !important; }

/* ---------- CARDS & BOXES ---------- */
.card {
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  transition: box-shadow 0.3s, transform 0.2s;
}
.card:hover { box-shadow: 0 6px 20px rgba(0,0,0,0.08); transform: translateY(-2px); }

.card-blog {
  border-radius: 10px;
  border: 1px solid #e2e8f0;
  padding: 1.2rem;
  margin-bottom: 1rem;
}

/* ---------- SECTION HEADINGS ---------- */
.section-heading {
  position: relative;
  display: inline-block;
}
.section-heading::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--sdk-yellow);
  margin: 0.5rem auto 0;
}
.text-center .section-heading::after { margin: 0.5rem auto 0; }

/* ---------- TERMINE ---------- */
.alert.alert-success {
  background: var(--sdk-yellow-light);
  border: none;
  border-left: 4px solid var(--sdk-yellow);
  margin-bottom: 0.5rem;
  border-radius: 0 8px 8px 0;
}
.alert.alert-success a { color: var(--sdk-black); text-decoration: none; font-weight: 500; }
.alert.alert-success:hover { background: var(--sdk-yellow); }
.alert.alert-success h2 { font-size: 1rem; margin: 0; }

/* ---------- CONTENT ---------- */
.container.bg-white { padding: 1.5rem; min-height: 200px; }

/* ---------- SUBMENU ---------- */
.submenu, .list-group.submenu { border-radius: 8px; overflow: hidden; margin-bottom: 1.5rem; }
.list-group-item-action {
  border: none;
  padding: 0.6rem 1.2rem;
  font-size: 14px;
  border-bottom: 1px solid #f0f0f0;
}
.list-group-item-action:hover { background: var(--sdk-yellow-light); }
.list-group-item.active { background: var(--sdk-black); border-color: var(--sdk-black); }

/* ---------- FOOTER ---------- */
footer, .footer {
  padding: 2.5rem 0 !important;
  background: var(--sdk-black) !important;
  color: #ccc;
}
footer a { color: var(--sdk-yellow) !important; }
footer a:hover { color: var(--sdk-yellow-dark) !important; }

/* ---------- LOGIN MODAL ---------- */
.modal-content { border-radius: 12px; border: none; overflow: hidden; }
.modal-header.bg-info {
  background: var(--sdk-black) !important;
  border-bottom: 3px solid var(--sdk-yellow);
}
.modal-body .form-control {
  border-radius: 6px;
  padding: 0.6rem 1rem;
  border: 2px solid #e2e8f0;
}
.modal-body .form-control:focus {
  border-color: var(--sdk-yellow);
  box-shadow: 0 0 0 3px rgba(255,230,0,0.2);
}
.modal-body .btn-block {
  background: var(--sdk-black);
  color: var(--sdk-yellow);
  font-weight: 700;
  padding: 0.7rem;
}

/* ---------- BACK TO TOP ---------- */
#btn-back-to-top {
  position: fixed; bottom: 20px; right: 20px;
  display: none; z-index: 9999;
  border-radius: 50%; width: 45px; height: 45px; padding: 0;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  background: var(--sdk-yellow); border: none; color: var(--sdk-black);
}

/* ---------- TABLES ---------- */
table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
table th { background: var(--sdk-black); color: var(--sdk-yellow); padding: 0.6rem 0.8rem; font-size: 13px; }
table td { padding: 0.5rem 0.8rem; border-bottom: 1px solid #f0f0f0; font-size: 14px; }
table tr:hover td { background: var(--sdk-yellow-light); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 991px) {
  .navbar-collapse { max-height: 80vh; overflow-y: auto; }
  .navbar-nav .btn { margin: 0.3rem 0; width: 100%; }
}
@media (max-width: 767px) {
  header.masthead { padding: 7rem 0 3rem 0; }
  header.masthead .h2 { font-size: 1.5rem; }
  .container.bg-white { padding: 1rem; }
  h1 { font-size: 1.4rem; }
}

/* ---------- MISC ---------- */
.none { display: none; }
hr { border-color: #e2e8f0; }
img { max-width: 100%; height: auto; }
.clear { clear: both; }
.tip-box { background: var(--sdk-yellow-light); border-left: 4px solid var(--sdk-yellow); padding: 1rem; border-radius: 0 8px 8px 0; }
.category.text-success { color: var(--sdk-black) !important; font-weight: 700; }

/* Fix oversized FA SVG icons */
svg.svg-inline--fa { width: 1em; height: 1em; vertical-align: -0.125em; }
.fa-2x svg { width: 2em; height: 2em; }
.fa-stack svg { width: 1em; height: 1em; }


#mainNav {
  padding: 0.5rem 1rem;
}

/* Termine: items links, headings mittig */
.section-heading { text-align: center; }
.alert.alert-success, .alert.alert-info { text-align: left !important; }


/* Navbar Buttons fix */
.navbar-nav .btn {
  padding: 6px 16px !important;
  font-size: 13px !important;
  border-radius: 5px !important;
  white-space: nowrap;
}
.navbar-nav .btn-info {
  background: var(--sdk-black) !important;
  border: 2px solid var(--sdk-black) !important;
  color: #fff !important;
}
.navbar-nav .btn-info:hover {
  background: transparent !important;
  color: var(--sdk-black) !important;
}
.navbar-nav .btn-warning {
  background: var(--sdk-yellow) !important;
  border: 2px solid var(--sdk-yellow) !important;
  color: var(--sdk-black) !important;
  font-weight: 700 !important;
}
.navbar-nav .btn-warning:hover {
  background: var(--sdk-yellow-dark) !important;
  border-color: var(--sdk-yellow-dark) !important;
}

/* Button group in navbar */
.navbar .navbar-nav:last-child {
  gap: 8px;
}

@media (max-width: 991px) {
  .navbar .navbar-nav:last-child {
    flex-direction: column;
    padding: 10px 0;
  }
  .navbar-nav .btn {
    width: 100% !important;
    text-align: center;
  }
}

/* ALL section headings centered */
.section-heading, .h2.section-heading, p.section-heading {
  text-align: center !important;
  width: 100%;
  display: block;
}

/* Section Dividers */
section + section { border-top: 1px solid #eee; }
section[style*="background:#1a1a1a"] + section { border-top: none; }
section[style*="background:#1a1a1a"] { border-top: none; }

/* Webinar Cards */
section[style*="background:#1a1a1a"] .card {
  border: 1px solid #333;
  transition: transform 0.2s, border-color 0.2s;
}
section[style*="background:#1a1a1a"] .card:hover {
  transform: translateY(-3px);
  border-color: #FFE600;
}
section[style*="background:#1a1a1a"] .h6 {
  color: #ccc !important;
}

/* YouTube section */
section[style*="background:#fafafa"] iframe {
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* Sticky Footer */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
section#services, .container.bg-white {
  flex: 1;
}


.navbar-brand img {
  height: 50px !important;
  width: auto !important;
  display: block !important;
  max-height: 50px;
}

/* Section underline decoration */
.section-divider {
  width: 60px;
  height: 4px;
  background: #FFE600;
  border-radius: 2px;
  margin: 0.5rem auto 1.5rem;
}


#mainNav {
  background-color: #fff !important;
}
#mainNav .navbar-nav .nav-item .nav-link {
  color: #1a1a1a !important;
}
@media (min-width: 992px) {
  #mainNav {
    background-color: #fff !important;
    padding-top: 0.5rem !important;
    padding-bottom: 0.5rem !important;
  }
}

/* ====== NAVBAR COMPLETE OVERRIDE ====== */
#mainNav {
  background-color: #ffffff !important;
  padding: 0.5rem 1rem !important;
  border-bottom: 4px solid #FFE600 !important;
  transition: none !important;
}
#mainNav.navbar-shrink {
  background-color: #ffffff !important;
  padding: 0.5rem 1rem !important;
}
#mainNav .navbar-brand {
  padding: 0 !important;
  margin-right: 1rem !important;
}
#mainNav .navbar-brand img,
#mainNav.navbar-shrink .navbar-brand img {
  height: 50px !important;
  width: auto !important;
  display: block !important;
  transition: none !important;
}
#mainNav .navbar-nav .nav-item .nav-link {
  color: #1a1a1a !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.5px !important;
}
#mainNav .navbar-nav .nav-item .nav-link:hover,
#mainNav .navbar-nav .nav-item .nav-link.active {
  color: #1a1a1a !important;
  background: #FFE600 !important;
  border-radius: 4px;
}
#mainNav .navbar-toggler {
  color: #1a1a1a !important;
  background-color: #FFE600 !important;
  border: none !important;
}
@media (min-width: 992px) {
  #mainNav {
    background-color: #ffffff !important;
    padding: 0.5rem 1rem !important;
  }
  #mainNav .navbar-brand img {
    height: 50px !important;
  }
}

/* Navbar Buttons */
.navbar-nav .btn {
  padding: 6px 16px !important;
  font-size: 13px !important;
  border-radius: 5px !important;
  white-space: nowrap;
}
.navbar-nav .btn-info {
  background: #1a1a1a !important;
  border: 2px solid #1a1a1a !important;
  color: #fff !important;
}
.navbar-nav .btn-info:hover {
  background: transparent !important;
  color: #1a1a1a !important;
}
.navbar-nav .btn-warning {
  background: #FFE600 !important;
  border: 2px solid #FFE600 !important;
  color: #1a1a1a !important;
  font-weight: 700 !important;
}
@media (max-width: 991px) {
  .navbar .navbar-nav:last-child {
    flex-direction: column;
    padding: 10px 0;
    gap: 8px;
  }
}

/* SDK Logo - not navbar-brand */
.sdk-logo {
  display: flex !important;
  align-items: center;
  flex-shrink: 0;
}
.sdk-logo img {
  height: 50px !important;
  width: auto !important;
}

/* ---------- SDK CARD HOVER ---------- */
.sdk-card-hover {
  transition: transform 0.2s ease, box-shadow 0.3s ease;
}
.sdk-card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.12) !important;
  border-left: 3px solid #FFE600 !important;
}

/* ---------- CONTENT PAGE STYLES ---------- */
.content img {
  border-radius: 8px;
  margin: 1rem 0;
}
.content h2 {
  margin-top: 2rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid #FFE600;
}
.content h3 {
  margin-top: 1.5rem;
}
.content ul, .content ol {
  padding-left: 1.5rem;
}
.content li {
  margin-bottom: 0.3rem;
}
.breadcrumb {
  background: transparent;
  padding: 0;
}

/* ---------- SIDEBAR ---------- */
.sidebar-content img {
  border-radius: 6px;
  margin: 0.5rem 0.8rem 0.5rem 0;
  max-width: 80px;
}
.sidebar-content img.left {
  float: left;
  margin-right: 10px;
  margin-bottom: 8px;
}
.sidebar-content p {
  font-size: 14px;
  margin-bottom: 0.8rem;
}
.sidebar-content .boldblack {
  font-weight: 700;
  color: #1A1A1A;
}
.sidebar-content iframe {
  width: 100%;
  border-radius: 8px;
  min-height: 250px;
}

/* ---------- SIDEBAR CARD HEADER FIX ---------- */
.card-header.bg-dark h5,
.card-header.bg-dark .mb-0 {
  color: #ffffff !important;
}

/* ---------- FOOTER LOGO ---------- */
.footer-logo {
  display: inline-block;
  background: #ffffff;
  padding: 8px 12px;
  border-radius: 6px;
  margin-bottom: 10px;
}
.footer-logo img {
  height: 35px !important;
  width: auto !important;
  filter: none !important;
}

/* Sidebar images bigger */
.sidebar-content .w-100 {
  max-width: none !important;
}
.card-body .sidebar-content img {
  max-width: none !important;
  width: 100% !important;
}