/* Advance Medical Journal — Bootstrap 5 theme */
:root {
  --amj-teal: #0d9488;
  --amj-teal-dark: #0f766e;
  --amj-blue: #1e40af;
  --amj-blue-light: #3b82f6;
  --amj-green: #059669;
  --amj-ink: #0f172a;
  --amj-muted: #64748b;
  --amj-surface: #f0fdfa;
  --amj-surface-2: #f8fafc;
  --amj-border: rgba(15, 23, 42, 0.1);
  --amj-shadow: 0 20px 60px rgba(15, 23, 42, 0.1);
  --amj-radius: 1rem;
}

html { scroll-behavior: smooth; }

body {
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--amj-ink);
  -webkit-font-smoothing: antialiased;
}

/* Logo */
.amj-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--amj-ink);
}

.amj-logo:hover { color: var(--amj-teal-dark); }

.amj-logo-mark {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
}

.amj-logo-text {
  line-height: 1.15;
}

.amj-logo-title {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.amj-logo-sub {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--amj-teal);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Navbar */
.amj-nav {
  transition: background 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.amj-nav.scrolled {
  background: rgba(255, 255, 255, 0.92) !important;
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--amj-border);
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.06);
}

.amj-nav .nav-link {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--amj-muted);
  padding: 0.5rem 0.85rem !important;
  border-radius: 0.6rem;
  transition: color 0.2s, background 0.2s;
}

.amj-nav .nav-link:hover,
.amj-nav .nav-link.active {
  color: var(--amj-teal-dark);
  background: rgba(13, 148, 136, 0.08);
}

/* Buttons */
.btn-amj {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--amj-teal);
  --bs-btn-border-color: var(--amj-teal);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: var(--amj-teal-dark);
  --bs-btn-hover-border-color: var(--amj-teal-dark);
  font-weight: 700;
  border-radius: 0.75rem;
  padding: 0.6rem 1.2rem;
}

.btn-amj-outline {
  --bs-btn-color: var(--amj-teal-dark);
  --bs-btn-border-color: rgba(13, 148, 136, 0.35);
  --bs-btn-hover-bg: rgba(13, 148, 136, 0.08);
  --bs-btn-hover-border-color: var(--amj-teal);
  --bs-btn-hover-color: var(--amj-teal-dark);
  font-weight: 700;
  border-radius: 0.75rem;
}

.btn-amj-blue {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--amj-blue);
  --bs-btn-border-color: var(--amj-blue);
  --bs-btn-hover-bg: #1e3a8a;
  --bs-btn-hover-border-color: #1e3a8a;
  font-weight: 700;
  border-radius: 0.75rem;
}

/* Hero */
.amj-hero {
  padding-top: 7rem;
  padding-bottom: 5rem;
  background:
    radial-gradient(ellipse 80% 60% at 10% 20%, rgba(13, 148, 136, 0.18), transparent 55%),
    radial-gradient(ellipse 70% 50% at 90% 10%, rgba(30, 64, 175, 0.12), transparent 50%),
    linear-gradient(180deg, #ecfdf5 0%, #f8fafc 55%, #fff 100%);
  position: relative;
  overflow: hidden;
}

.amj-hero::after {
  content: "";
  position: absolute;
  right: -5%;
  bottom: -20%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.amj-badge-oa {
  background: rgba(13, 148, 136, 0.12);
  color: var(--amj-teal-dark);
  border: 1px solid rgba(13, 148, 136, 0.25);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.amj-stat-card {
  border: 1px solid var(--amj-border);
  border-radius: var(--amj-radius);
  background: #fff;
  box-shadow: 0 8px 28px rgba(15, 23, 42, 0.05);
  padding: 1.25rem;
  height: 100%;
}

.amj-stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--amj-teal-dark);
  line-height: 1;
}

/* Cards */
.amj-card {
  border: 1px solid var(--amj-border);
  border-radius: var(--amj-radius);
  background: #fff;
  box-shadow: 0 10px 36px rgba(15, 23, 42, 0.05);
  transition: transform 0.2s, box-shadow 0.2s;
}

.amj-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--amj-shadow);
}

.amj-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 0.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
}

.amj-icon-teal { background: rgba(13, 148, 136, 0.12); color: var(--amj-teal); }
.amj-icon-blue { background: rgba(30, 64, 175, 0.1); color: var(--amj-blue); }
.amj-icon-green { background: rgba(5, 150, 105, 0.12); color: var(--amj-green); }

/* Section */
.amj-section { padding: 5rem 0; }

.amj-section-alt { background: var(--amj-surface-2); }

.amj-section-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amj-teal);
}

.amj-heading {
  font-weight: 800;
  letter-spacing: -0.03em;
}

/* Article list */
.amj-article-item {
  border-bottom: 1px solid var(--amj-border);
  padding: 1.25rem 0;
}

.amj-article-item:last-child { border-bottom: none; }

.amj-article-title {
  font-weight: 700;
  color: var(--amj-ink);
  text-decoration: none;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.amj-article-title:hover { color: var(--amj-teal-dark); }

.amj-tag {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 2rem;
  background: rgba(30, 64, 175, 0.08);
  color: var(--amj-blue);
}

/* Editorial */
.amj-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(13, 148, 136, 0.2);
}

/* Process steps */
.amj-step {
  position: relative;
  padding-left: 3rem;
}

.amj-step-num {
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--amj-teal);
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Footer */
.amj-footer {
  background: var(--amj-ink);
  color: rgba(255, 255, 255, 0.75);
  padding: 4rem 0 2rem;
}

.amj-footer a {
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
}

.amj-footer a:hover { color: #5eead4; }

.amj-footer .amj-logo-title { color: #fff; }

/* Auth modals */
.amj-auth-header {
  background: linear-gradient(135deg, var(--amj-teal) 0%, var(--amj-blue) 100%);
  color: #fff;
  border-radius: var(--amj-radius) var(--amj-radius) 0 0;
  padding: 1.75rem;
}

.amj-reg-steps {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.amj-reg-step-dot {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: #e2e8f0;
  transition: background 0.3s;
}

.amj-reg-step-dot.active { background: var(--amj-teal); }
.amj-reg-step-dot.done { background: var(--amj-green); }

.amj-form-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--amj-muted);
  pointer-events: none;
}

.amj-input-icon { padding-left: 2.5rem !important; }

.amj-password-toggle {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: none;
  color: var(--amj-muted);
  cursor: pointer;
  padding: 0.25rem;
}

.amj-success-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(5, 150, 105, 0.12);
  color: var(--amj-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 1rem;
}

/* CTA band */
.amj-cta-band {
  background: linear-gradient(135deg, var(--amj-teal-dark) 0%, var(--amj-blue) 100%);
  border-radius: 1.25rem;
  padding: 3rem;
  color: #fff;
}

@media (max-width: 767.98px) {
  .amj-hero { padding-top: 6rem; padding-bottom: 3.5rem; }
  .amj-section { padding: 3.5rem 0; }
  .amj-cta-band { padding: 2rem 1.5rem; }
}