/* components.css — Reusable UI Components */

/* ── NAVIGATION ── */
.nav-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: all var(--transition);
}

.nav-wrapper.scrolled {
  background: rgba(13, 27, 42, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0.85rem 0;
  box-shadow: 0 2px 40px rgba(0,0,0,0.3);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-md);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: var(--navy-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-rv {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.02em;
}

.logo-sub {
  font-family: var(--font-body);
  font-size: 0.68rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  font-size: var(--size-sm);
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  padding: 0.5rem 1rem;
  border-radius: 3px;
  transition: all var(--transition);
  letter-spacing: 0.04em;
}

.nav-link:hover {
  color: var(--gold);
}

.nav-cta {
  background: var(--navy-light);
  color: var(--white) !important;
  font-weight: 600;
  padding: 0.6rem 1.4rem;
}

.nav-cta:hover {
  background: var(--navy-soft);
  color: var(--white) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all var(--transition);
  border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── CERT BADGES ── */
.cert-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-xs);
  margin-top: var(--gap-lg);
}

.cert-badge {
  background: var(--navy);
  color: var(--gold-light);
  font-size: var(--size-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 0.4rem 1rem;
  border-radius: 3px;
  border: 1px solid rgba(232, 168, 56, 0.3);
}

/* ── INFO CARDS ── */
.info-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--gap-md);
  border: 1px solid rgba(13, 27, 42, 0.08);
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(201, 168, 76, 0.3);
}

.info-card-icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.info-card h3 {
  font-family: var(--font-display);
  font-size: var(--size-lg);
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.4rem;
}

.info-card p {
  font-size: var(--size-sm);
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── COURSE CARDS ── */
.course-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid rgba(13, 27, 42, 0.08);
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--navy-light);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.course-card:hover::before { transform: scaleX(1); }

.course-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.course-card--featured {
  background: var(--navy);
  border-color: var(--navy);
}

.course-card--featured .course-title,
.course-card--featured .course-desc {
  color: var(--white);
}

.course-flag {
  font-size: 2.5rem;
  margin-bottom: 1.25rem;
  display: block;
}

.course-title {
  font-family: var(--font-display);
  font-size: var(--size-2xl);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin-bottom: 0.85rem;
}

.course-desc {
  font-size: var(--size-sm);
  color: var(--text-body);
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.course-levels {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.course-levels span {
  font-size: var(--size-xs);
  font-weight: 700;
  padding: 0.3rem 0.7rem;
  background: rgba(26, 86, 219, 0.09);
  color: var(--navy-light);
  border-radius: 3px;
  letter-spacing: 0.05em;
  border: 1px solid rgba(26, 86, 219, 0.18);
}

.course-tag {
  font-size: var(--size-sm);
  font-weight: 500;
  color: var(--gold);
  border: 1px solid rgba(201, 168, 76, 0.3);
  display: inline-block;
  padding: 0.4rem 1rem;
  border-radius: 3px;
}

.exam-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.exam-pill {
  font-size: var(--size-xs);
  font-weight: 700;
  padding: 0.35rem 0.8rem;
  background: rgba(232, 168, 56, 0.15);
  color: var(--gold-light);
  border-radius: 20px;
  letter-spacing: 0.05em;
  border: 1px solid rgba(232, 168, 56, 0.3);
}

/* ── REVIEW CARDS ── */
.review-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid rgba(13, 27, 42, 0.07);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.review-stars {
  color: var(--gold);
  font-size: 1rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.review-text {
  font-size: var(--size-sm);
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--navy-light);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  flex-shrink: 0;
}

.author-name {
  display: block;
  font-size: var(--size-sm);
  font-weight: 600;
  color: var(--navy);
}

.author-detail {
  display: block;
  font-size: var(--size-xs);
  color: var(--text-muted);
  margin-top: 2px;
}

/* ── SOCIAL LINKS ── */
.social-title {
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.social-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--navy);
  color: var(--white);
  font-size: var(--size-sm);
  font-weight: 500;
  transition: all var(--transition);
  border: 1px solid rgba(255,255,255,0.08);
}

.social-link:hover {
  background: var(--gold);
  color: var(--navy);
  transform: translateY(-2px);
}

/* ── CREDENTIALS ── */
.tutor-credentials {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 2rem;
}

.credential {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--size-sm);
  color: var(--text-body);
}

.credential-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--navy-light);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
  flex-shrink: 0;
}

/* ── BACK TO TOP ── */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--navy-light);
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  z-index: 900;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--navy);
  color: var(--gold);
  transform: translateY(-3px);
}