/* ============================================================
   DARKHEX.IN - Dark Hacker Theme
   ============================================================ */

:root {
  --dh-bg: #0a0a0f;
  --dh-surface: #111118;
  --dh-surface2: #1a1a24;
  --dh-border: #1e1e2e;
  --dh-green: #10b981;
  --dh-green-dark: #059669;
  --dh-cyan: #06b6d4;
  --dh-text: #e2e8f0;
  --dh-muted: #64748b;
  --dh-gradient: linear-gradient(135deg, #10b981, #06b6d4);
}

* { box-sizing: border-box; }

body {
  background-color: var(--dh-bg);
  color: var(--dh-text);
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dh-bg); }
::-webkit-scrollbar-thumb { background: var(--dh-green); border-radius: 3px; }

/* ---- Navbar ---- */
.dh-navbar {
  background: rgba(10,10,15,0.95) !important;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--dh-border);
  padding: 12px 0;
}

.dh-logo {
  font-family: 'Share Tech Mono', monospace;
  font-size: 1.4rem;
  color: var(--dh-text) !important;
  text-decoration: none;
  letter-spacing: 2px;
}
.logo-bracket { color: var(--dh-green); }
.logo-hex { color: var(--dh-green); }
.logo-text { color: #fff; }

.navbar-dark .navbar-nav .nav-link {
  color: var(--dh-muted) !important;
  font-size: 0.9rem;
  padding: 6px 14px;
  transition: color 0.2s;
}
.navbar-dark .navbar-nav .nav-link:hover { color: var(--dh-green) !important; }

.nav-avatar {
  width: 28px; height: 28px;
  background: rgba(16,185,129,0.2);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--dh-green);
  font-size: 0.8rem;
}

.dh-dropdown {
  background: var(--dh-surface2) !important;
  border: 1px solid var(--dh-border) !important;
  border-radius: 8px;
}
.dh-dropdown .dropdown-item {
  color: var(--dh-text) !important;
  font-size: 0.85rem;
  padding: 8px 16px;
}
.dh-dropdown .dropdown-item:hover { background: rgba(16,185,129,0.1) !important; color: var(--dh-green) !important; }

/* ---- Buttons ---- */
.btn-dh-primary {
  background: var(--dh-gradient);
  border: none;
  color: #000 !important;
  font-weight: 600;
  border-radius: 6px;
  padding: 8px 20px;
  transition: all 0.2s;
  font-size: 0.9rem;
}
.btn-dh-primary:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 4px 20px rgba(16,185,129,0.3); }

.btn-dh-outline {
  background: transparent;
  border: 1px solid var(--dh-green);
  color: var(--dh-green) !important;
  font-weight: 600;
  border-radius: 6px;
  padding: 8px 20px;
  transition: all 0.2s;
  font-size: 0.9rem;
}
.btn-dh-outline:hover { background: rgba(16,185,129,0.1); transform: translateY(-1px); }

.btn-toggle-pass { background: var(--dh-surface) !important; border-color: var(--dh-border) !important; color: var(--dh-muted) !important; }

/* ---- Hero ---- */
.dh-hero {
  background: radial-gradient(ellipse at 20% 50%, rgba(16,185,129,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, rgba(6,182,212,0.06) 0%, transparent 60%),
              var(--dh-bg);
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}

.min-vh-85 { min-height: 85vh; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.8rem;
  color: var(--dh-green);
}
.badge-dot {
  width: 6px; height: 6px;
  background: var(--dh-green);
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(16,185,129,0.7); }
  70% { box-shadow: 0 0 0 8px rgba(16,185,129,0); }
  100% { box-shadow: 0 0 0 0 rgba(16,185,129,0); }
}

.hero-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.dh-gradient-text {
  background: var(--dh-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle { font-size: 1.1rem; color: var(--dh-muted); max-width: 520px; }

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}
.stat-item { text-align: left; }
.stat-num { font-family: 'Rajdhani', sans-serif; font-size: 2rem; font-weight: 700; color: var(--dh-green); line-height: 1; }
.stat-label { font-size: 0.75rem; color: var(--dh-muted); }
.stat-divider { width: 1px; height: 40px; background: var(--dh-border); }

/* Terminal Widget */
.hero-terminal {
  background: #0d1117;
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: 12px;
  overflow: hidden;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 0 40px rgba(16,185,129,0.1);
}
.terminal-header {
  background: #161b22;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(16,185,129,0.15);
}
.t-dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; margin-right: 6px; }
.t-dot.red { background: #ff5f56; }
.t-dot.yellow { background: #ffbd2e; }
.t-dot.green { background: #27c93f; }
.t-title { font-family: 'Share Tech Mono', monospace; color: var(--dh-muted); font-size: 0.75rem; }
.terminal-body { padding: 16px; font-family: 'Share Tech Mono', monospace; font-size: 0.82rem; }
.t-line { margin-bottom: 4px; }
.t-cmd { color: var(--dh-green); margin-right: 8px; }
.t-text { color: #e2e8f0; }
.t-output { color: var(--dh-muted); }
.t-success { color: #27c93f; }
.t-warning { color: #ffbd2e; }
.cursor-blink { animation: blink 1s infinite; color: var(--dh-green); }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* ---- Marquee ---- */
.dh-marquee-bar {
  background: rgba(16,185,129,0.05);
  border-top: 1px solid var(--dh-border);
  border-bottom: 1px solid var(--dh-border);
  padding: 12px 0;
  overflow: hidden;
  white-space: nowrap;
}
.marquee-content {
  display: inline-block;
  animation: marquee 25s linear infinite;
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.8rem;
  color: var(--dh-green);
  letter-spacing: 1px;
}
.marquee-content .sep { color: var(--dh-muted); margin: 0 16px; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ---- Section Labels & Titles ---- */
.dh-section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-family: 'Share Tech Mono', monospace;
  color: var(--dh-green);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

/* ---- Course Cards ---- */
.dh-course-card {
  background: var(--dh-surface);
  border: 1px solid var(--dh-border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.dh-course-card:hover {
  border-color: rgba(16,185,129,0.4);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(16,185,129,0.1);
}

.course-card-img {
  position: relative;
  height: 180px;
  overflow: hidden;
}
.course-card-img img { width: 100%; height: 100%; object-fit: cover; }
.course-card-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, #0a1628, #0d2137);
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem;
  color: rgba(16,185,129,0.3);
}

.course-level-badge {
  position: absolute; top: 10px; left: 10px;
  background: rgba(0,0,0,0.7);
  color: var(--dh-green);
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid rgba(16,185,129,0.3);
  font-family: 'Share Tech Mono', monospace;
}

.course-featured-badge {
  position: absolute; top: 10px; right: 10px;
  background: var(--dh-gradient);
  color: #000;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
}

.course-card-body { padding: 16px; flex: 1; display: flex; flex-direction: column; }

.course-category {
  font-size: 0.7rem;
  font-family: 'Share Tech Mono', monospace;
  color: var(--dh-cyan);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.course-title-text {
  color: #fff;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  margin: 6px 0;
  line-height: 1.3;
}

.course-desc { color: var(--dh-muted); font-size: 0.83rem; flex: 1; }

.course-meta {
  display: flex;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--dh-muted);
  margin: 8px 0;
}

.batch-badge {
  font-size: 0.75rem;
  color: var(--dh-green);
  background: rgba(16,185,129,0.1);
  border-radius: 4px;
  padding: 3px 8px;
  display: inline-block;
}

.course-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--dh-border);
}

.course-price { display: flex; align-items: baseline; gap: 8px; }
.price-current { font-size: 1.2rem; font-weight: 700; color: var(--dh-green); font-family: 'Rajdhani', sans-serif; }
.price-original { color: var(--dh-muted); font-size: 0.85rem; text-decoration: line-through; }
.price-discount { font-size: 0.7rem; color: #f59e0b; font-weight: 600; }

/* ---- Feature Cards ---- */
.dh-why-section { background: var(--dh-surface); }

.dh-feature-card {
  background: var(--dh-bg);
  border: 1px solid var(--dh-border);
  border-radius: 12px;
  padding: 28px;
  text-align: center;
  transition: all 0.3s;
}
.dh-feature-card:hover {
  border-color: rgba(16,185,129,0.4);
  transform: translateY(-4px);
}
.dh-feature-card h5 { color: #fff; font-family: 'Rajdhani', sans-serif; font-weight: 600; margin: 12px 0 8px; }
.dh-feature-card p { color: var(--dh-muted); font-size: 0.85rem; margin: 0; }

.feature-icon {
  width: 56px; height: 56px;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  color: var(--dh-green);
  margin: 0 auto;
}
.feature-icon.small { width: 40px; height: 40px; font-size: 1rem; margin: 0; }

/* ---- Steps ---- */
.dh-step-card { position: relative; padding: 24px 16px; }
.step-num {
  font-family: 'Share Tech Mono', monospace;
  font-size: 3rem;
  font-weight: 700;
  color: rgba(16,185,129,0.1);
  line-height: 1;
  margin-bottom: 8px;
}
.step-icon { font-size: 2rem; color: var(--dh-green); display: block; margin-bottom: 12px; }
.dh-step-card h6 { color: #fff; font-family: 'Rajdhani', sans-serif; font-weight: 600; }

/* ---- Auth / Form ---- */
.dh-auth-section { min-height: 80vh; display: flex; align-items: center; padding: 60px 0; }
.dh-auth-card {
  background: var(--dh-surface);
  border: 1px solid var(--dh-border);
  border-radius: 16px;
  padding: 36px;
}
.auth-icon {
  width: 64px; height: 64px;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  color: var(--dh-green);
  margin: 0 auto;
}

/* ---- Inputs ---- */
.dh-input {
  background-color: var(--dh-surface2) !important;
  border: 1px solid var(--dh-border) !important;
  color: var(--dh-text) !important;
  border-radius: 8px;
}
.dh-input:focus {
  border-color: var(--dh-green) !important;
  box-shadow: 0 0 0 3px rgba(16,185,129,0.15) !important;
}
.dh-input::placeholder { color: var(--dh-muted) !important; }
.dh-input-group .input-group-text {
  background: var(--dh-surface2) !important;
  border: 1px solid var(--dh-border) !important;
  color: var(--dh-muted) !important;
}

/* ---- Page Header ---- */
.dh-page-header {
  background: var(--dh-surface);
  border-bottom: 1px solid var(--dh-border);
  padding: 40px 0;
}

/* ---- Filter Bar ---- */
.dh-filter-bar {
  background: var(--dh-surface);
  border: 1px solid var(--dh-border);
  border-radius: 12px;
  padding: 20px;
}

/* ---- Content Card ---- */
.dh-content-card {
  background: var(--dh-surface);
  border: 1px solid var(--dh-border);
  border-radius: 12px;
  padding: 24px;
}

/* ---- Course Detail ---- */
.learn-item { color: var(--dh-muted); font-size: 0.85rem; }
.batch-item {
  background: var(--dh-surface2);
  border: 1px solid var(--dh-border);
  border-radius: 8px;
  padding: 16px;
}

/* ---- Enroll Card ---- */
.dh-enroll-card {
  background: var(--dh-surface);
  border: 1px solid var(--dh-border);
  border-radius: 12px;
  overflow: hidden;
}
.enroll-price { font-size: 2rem; font-weight: 700; color: var(--dh-green); font-family: 'Rajdhani', sans-serif; }
.enroll-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--dh-muted);
  margin-bottom: 8px;
}

/* ---- Dashboard ---- */
.dh-stat-card {
  background: var(--dh-surface);
  border: 1px solid var(--dh-border);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  position: relative;
}
.stat-card-icon { font-size: 2rem; display: block; margin-bottom: 8px; }
.stat-card-num { font-family: 'Rajdhani', sans-serif; font-size: 2.2rem; font-weight: 700; color: #fff; line-height: 1; }
.stat-card-label { font-size: 0.8rem; color: var(--dh-muted); margin-top: 4px; }

.dh-enrolled-card {
  background: var(--dh-surface);
  border: 1px solid var(--dh-border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  transition: border-color 0.2s;
}
.dh-enrolled-card:hover { border-color: rgba(16,185,129,0.4); }
.enrolled-course-img { width: 120px; min-width: 120px; background: #0a1628; overflow: hidden; }
.enrolled-course-img img { width: 100%; height: 100%; object-fit: cover; }
.enrolled-course-body { padding: 16px; flex: 1; }

/* ---- Contact Form ---- */
.dh-contact-form { background: var(--dh-surface); border: 1px solid var(--dh-border); border-radius: 12px; padding: 28px; }

/* ---- Footer ---- */
.dh-footer {
  background: var(--dh-surface);
  border-top: 1px solid var(--dh-border);
}
.dh-footer-link { color: var(--dh-muted); font-size: 0.85rem; text-decoration: none; display: block; margin-bottom: 6px; transition: color 0.2s; }
.dh-footer-link:hover { color: var(--dh-green); }
.dh-social-link { color: var(--dh-muted); text-decoration: none; transition: color 0.2s; }
.dh-social-link:hover { color: var(--dh-green); }

/* ---- Payment Success ---- */
.success-circle {
  width: 80px; height: 80px;
  background: rgba(16,185,129,0.15);
  border: 2px solid var(--dh-green);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem;
  color: var(--dh-green);
  margin: 0 auto;
  animation: successPop 0.5s ease-out;
}
@keyframes successPop {
  0% { transform: scale(0); }
  60% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .hero-title { font-size: 2.2rem; }
  .hero-stats { gap: 16px; }
  .stat-num { font-size: 1.5rem; }
  .dh-auth-card { padding: 24px 16px; }
  .enrolled-course-img { width: 80px; min-width: 80px; }
}

/* ============================================================
   BOOTSTRAP DARK THEME OVERRIDES
   ============================================================ */

/* Override Bootstrap CSS variables for dark theme */
:root {
  --bs-body-color: #e2e8f0;
  --bs-body-bg: #0a0a0f;
  --bs-secondary-color: rgba(100, 116, 139, 1);
  --bs-tertiary-color: rgba(100, 116, 139, 0.5);
  --bs-emphasis-color: #fff;
  --bs-border-color: #1e1e2e;
}

/* Fix .text-muted — Bootstrap defaults to dark rgba(33,37,41) which is invisible on dark backgrounds */
.text-muted {
  color: var(--dh-muted) !important;
}
.text-secondary {
  color: var(--dh-muted) !important;
}
.text-body-secondary {
  color: var(--dh-muted) !important;
}

/* Fix form labels */
.form-label, .form-check-label, label {
  color: var(--dh-muted);
}

/* Fix breadcrumb */
.breadcrumb-item.active {
  color: var(--dh-muted);
}
.breadcrumb-item + .breadcrumb-item::before {
  color: var(--dh-muted);
}

/* Fix Bootstrap alerts for dark theme */
.alert-danger {
  color: #fca5a5 !important;
  background-color: rgba(239, 68, 68, 0.15) !important;
  border-color: rgba(239, 68, 68, 0.35) !important;
}
.alert-success {
  color: #6ee7b7 !important;
  background-color: rgba(16, 185, 129, 0.12) !important;
  border-color: rgba(16, 185, 129, 0.35) !important;
}
.alert-warning {
  color: #fcd34d !important;
  background-color: rgba(245, 158, 11, 0.12) !important;
  border-color: rgba(245, 158, 11, 0.35) !important;
}
.alert-info {
  color: #67e8f9 !important;
  background-color: rgba(6, 182, 212, 0.12) !important;
  border-color: rgba(6, 182, 212, 0.35) !important;
}
.alert .btn-close { filter: invert(1); }

/* Fix Bootstrap hr / dividers */
hr { border-color: var(--dh-border); opacity: 1; }
.border-secondary { border-color: var(--dh-border) !important; }

/* Fix Bootstrap form-select */
.form-select {
  background-color: var(--dh-surface2) !important;
  border-color: var(--dh-border) !important;
  color: var(--dh-text) !important;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%2364748b' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e") !important;
  background-repeat: no-repeat !important;
  background-position: right 0.75rem center !important;
  background-size: 16px 12px !important;
}
.form-select:focus {
  border-color: var(--dh-green) !important;
  box-shadow: 0 0 0 3px rgba(16,185,129,0.15) !important;
}
.form-select option {
  background-color: var(--dh-surface2);
  color: var(--dh-text);
}

/* Fix Bootstrap form-check-input (checkboxes/radios) */
.form-check-input {
  background-color: var(--dh-surface2);
  border-color: var(--dh-border);
}
.form-check-input:checked {
  background-color: var(--dh-green);
  border-color: var(--dh-green);
}
.form-check-input:focus {
  border-color: var(--dh-green);
  box-shadow: 0 0 0 3px rgba(16,185,129,0.15);
}

/* Fix Bootstrap badges */
.badge.bg-secondary { background-color: var(--dh-surface2) !important; color: var(--dh-muted) !important; }
.badge.text-bg-secondary { background-color: var(--dh-surface2) !important; color: var(--dh-muted) !important; }

/* Fix Bootstrap general dropdown (fallback) */
.dropdown-menu {
  background-color: var(--dh-surface2);
  border-color: var(--dh-border);
}
.dropdown-item { color: var(--dh-text); }
.dropdown-item:hover { background-color: rgba(16,185,129,0.1); color: var(--dh-green); }
.dropdown-divider { border-top-color: var(--dh-border); }

/* Fix Bootstrap tables */
.table { color: var(--dh-text); border-color: var(--dh-border); }
.table th, .table td { border-color: var(--dh-border); }
.table-striped > tbody > tr:nth-of-type(odd) > td { background-color: rgba(255,255,255,0.02); color: var(--dh-text); }

/* Fix Bootstrap modal */
.modal-content { background-color: var(--dh-surface); border-color: var(--dh-border); color: var(--dh-text); }
.modal-header { border-bottom-color: var(--dh-border); }
.modal-footer { border-top-color: var(--dh-border); }
.modal-title { color: #fff; }
.btn-close { filter: invert(1) grayscale(1); }

/* Fix Bootstrap card (if used outside custom classes) */
.card { background-color: var(--dh-surface); border-color: var(--dh-border); color: var(--dh-text); }
.card-header { background-color: var(--dh-surface2); border-bottom-color: var(--dh-border); color: #fff; }
.card-footer { background-color: var(--dh-surface2); border-top-color: var(--dh-border); }

/* Fix Bootstrap pagination */
.pagination .page-link {
  background-color: var(--dh-surface);
  border-color: var(--dh-border);
  color: var(--dh-muted);
}
.pagination .page-link:hover {
  background-color: var(--dh-surface2);
  border-color: var(--dh-border);
  color: var(--dh-green);
}
.pagination .page-item.active .page-link {
  background-color: var(--dh-green);
  border-color: var(--dh-green);
  color: #000;
}
.pagination .page-item.disabled .page-link { background-color: var(--dh-surface); color: var(--dh-border); }

/* Fix Bootstrap list-group */
.list-group-item {
  background-color: var(--dh-surface);
  border-color: var(--dh-border);
  color: var(--dh-text);
}
.list-group-item-action:hover { background-color: var(--dh-surface2); color: var(--dh-text); }

/* Fix Bootstrap nav-tabs */
.nav-tabs { border-bottom-color: var(--dh-border); }
.nav-tabs .nav-link { color: var(--dh-muted); border-color: transparent; }
.nav-tabs .nav-link:hover { border-color: var(--dh-border); color: var(--dh-text); }
.nav-tabs .nav-link.active { background-color: var(--dh-surface); border-color: var(--dh-border) var(--dh-border) var(--dh-surface); color: var(--dh-green); }

/* Fix Bootstrap nav-pills */
.nav-pills .nav-link { color: var(--dh-muted); }
.nav-pills .nav-link:hover { color: var(--dh-text); background-color: rgba(255,255,255,0.05); }
.nav-pills .nav-link.active { background-color: var(--dh-green); color: #000; }