:root {
  --primary: #1554e0;
  --primary-dark: #0f3fa3;
  --accent: #ff6b35;
  --bg: #f5f7fb;
  --text: #111827;
  --muted: #6b7280;
}

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

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  font-size: 18px;
  line-height: 1.7;
}

/* Logo badge */

.logo-badge {
  background: var(--primary);
  color: #fff;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  font-weight: 700;
}

/* Navbar links */

.navbar .nav-link {
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--muted);
}

.navbar .nav-link.active,
.navbar .nav-link:hover {
  color: var(--primary);
}

/* Brand buttons */

.btn-brand {
  background: var(--primary);
  color: #fff;
  border-radius: 999px;
  font-weight: 600;
  border: none;
}

.btn-brand:hover {
  background: var(--primary-dark);
  color: #fff;
}

.btn-outline-brand {
  border-radius: 999px;
  border-color: rgba(15, 23, 42, 0.25);
  color: var(--primary);
  font-weight: 600;
}

.btn-outline-brand:hover {
  border-color: var(--primary);
  color: var(--primary-dark);
  background-color: #e0ebff;
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  font-weight: 600;
  border: none;
  box-shadow: 0 15px 40px rgba(255, 107, 53, 0.4);
}

.btn-accent:hover {
  background: #e85521;
  color: #fff;
  box-shadow: 0 20px 50px rgba(255, 107, 53, 0.55);
}

.btn-outline-light-custom {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #0f172a;
  background: rgba(255, 255, 255, 0.9);
}

.btn-outline-light-custom:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Hero */

.hero-section {
  background: radial-gradient(circle at top left, #e3ecff 0, #f2f5ff 45%, #f5f7fb 100%);
}

.hero-title {
  font-size: clamp(2.7rem, 3.5vw + 1.6rem, 3.6rem);
  line-height: 1.1;
  font-weight: 800;
  color: #0f172a;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--muted);
}

.eyebrow {
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 600;
}

.navbar .dropdown:hover .dropdown-menu { display: block; }
.navbar .dropdown .dropdown-menu { margin-top: 0.75rem; }
@media (min-width: 992px) {
  .dropdown-mega {
    position: absolute;
    left: 0;
    top: 100%;
    transform: none;
    z-index: 1000;
  }
  .navbar .dropdown:hover > .dropdown-toggle { color: var(--primary); }
}
@media (max-width: 991.98px) {
  .dropdown-mega { min-width: 100%; }
}

.pill {
  background: #e5edff;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
}

.hero-actions .btn {
  font-size: 1rem;
}

/* Sections */

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: #0f172a;
}

.section-subtitle {
  font-size: 1.02rem;
  color: var(--muted);
}

/* Feature cards */

.feature-card {
  background-color: #ffffff;
  border-radius: 1.2rem;
  padding: 1.4rem 1.3rem;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.06);
}

.feature-card h5 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.feature-card p {
  font-size: 0.96rem;
  color: var(--muted);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.bg-orange {
  background-color: #ff6b35 !important;
}

/* Course cards */

.course-card {
  background-color: #ffffff;
  border-radius: 1.2rem;
  padding: 1.3rem 1.25rem;
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.08);
}

.course-card-primary {
  background: linear-gradient(145deg, var(--primary), #2563eb);
  color: #e5edff;
}

.course-card h5 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.course-card p {
  font-size: 0.96rem;
  margin-bottom: 0.5rem;
}

.course-icon {
  width: 38px;
  height: 38px;
  border-radius: 0.9rem;
  background: rgba(255, 255, 255, 0.18);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.7rem;
}

.course-meta {
  font-size: 0.85rem;
  opacity: 0.9;
}

/* About stats */

.about-stat {
  background-color: #ffffff;
  border-radius: 1.2rem;
  padding: 1.1rem 1rem;
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.06);
}

.stat-value {
  font-weight: 700;
  font-size: 1.4rem;
}

.stat-label {
  font-size: 0.96rem;
  color: var(--muted);
}

/* Contact form */

.contact-form .form-label {
  font-size: 0.9rem;
}

.contact-form .form-control,
.contact-form .form-select {
  font-size: 0.92rem;
  border-radius: 0.8rem;
}

/* Footer */

footer {
  font-size: 0.9rem;
}

/* Responsive tweaks */

@media (max-width: 992px) {
  .hero-section {
    text-align: center;
  }
  .hero-title {
    font-size: 2.4rem;
  }
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .pill-group { justify-content: center; }
}

@media (max-width: 576px) {
  body {
    font-size: 16px;
  }
  .navbar .nav-link { font-size: 0.92rem; }
  .hero-illustration { max-width: 300px; }
  .feature-card { padding: 1rem; }
  .section-title { font-size: 1.6rem; }
  .course-card { padding: 1rem; }
  .hero-actions { gap: 0.75rem; }
  .hero-actions .btn { font-size: 0.9rem; padding: 0.45rem 0.85rem; }
}

/* Navbar course mega dropdown */
.navbar .dropdown:hover .dropdown-menu { display: block; }
.dropdown-mega {
  min-width: 680px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
  border-radius: 1rem;
}
.mini-course-card { background: #fff; border-radius: 0.75rem; padding: 0.75rem; box-shadow: 0 6px 20px rgba(15,23,42,0.06); }
.mini-course-icon { width: 34px; height: 34px; border-radius: 0.6rem; background: #eef3ff; display:flex; align-items:center; justify-content:center; }
.mini-course-title { font-weight: 600; }
.mini-course-desc { max-width: 420px; }
@media (min-width: 1400px) {
  .hero-illustration { max-width: 640px; }
}
/* Register page background */
.bg-gradient-lms {
  background: radial-gradient(circle at top left, #ffe3cf 0, #f4f5ff 45%, #eef3ff 100%);
}

/* Left info block */
.register-left {
  background: linear-gradient(145deg, #1554e0, #0f3fa3);
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.4);
}

/* Card */
.register-card {
  border-radius: 1.5rem;
}

/* Role pills */
.role-select-group .role-pill {
  border-radius: 999px;
  padding: 0.5rem 1.2rem;
  font-weight: 600;
  border: 1px solid rgba(148, 163, 184, 0.6);
  color: #374151;
  background-color: #f9fafb;
  font-size: 0.95rem;
}

.role-select-group .btn-check:checked + .role-pill {
  background: linear-gradient(145deg, #1554e0, #2563eb);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.5);
}

.role-select-group .role-pill:hover {
  border-color: #1554e0;
}

/* Form controls bigger & smooth */
.form-control-lg,
.form-select-lg {
  border-radius: 0.9rem;
  padding: 0.75rem 1rem;
}

.register-card .form-label {
  font-weight: 500;
  color: #111827;
}
.login-card {
  border-radius: 1.4rem;
}

/* Auth pages */
.auth-title {
  font-size: 2rem;
  line-height: 1.2;
}
.auth-subtitle {
  font-size: 1.05rem;
}
@media (max-width: 576px) {
  .auth-title { font-size: 1.9rem; }
  .auth-subtitle { font-size: 1rem; }
}

.navbar .dropdown:hover .dropdown-menu { display: block; }
.navbar .dropdown .dropdown-menu { margin-top: 0.75rem; }
@media (min-width: 992px) {
  .dropdown-mega {
    position: absolute;
    left: 0;
    top: 100%;
    transform: none;
    z-index: 1000;
  }
  .navbar .dropdown:hover > .dropdown-toggle { color: var(--primary); }
}
@media (max-width: 991.98px) {
  .dropdown-mega { min-width: 100%; }
}