/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-2);
  padding:.75rem 1.35rem;font-size:var(--fs-sm);font-weight:600;
  border-radius:var(--radius-md);border:1px solid transparent;
  transition:transform var(--transition),background var(--transition),box-shadow var(--transition),color var(--transition),border-color var(--transition);
  white-space:nowrap;line-height:1;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--color-accent);color:#fff;box-shadow:var(--shadow-brand)}
.btn-primary:hover{background:var(--color-accent-600);color:#fff}
.btn-navy{background:var(--color-primary);color:#fff}
.btn-navy:hover{background:var(--color-primary-600);color:#fff}
.btn-outline{background:transparent;border-color:var(--color-border);color:var(--color-text)}
.btn-outline:hover{border-color:var(--color-primary);color:var(--color-primary);background:var(--color-primary-50)}
.btn-ghost{background:transparent;color:var(--color-text)}
.btn-ghost:hover{background:var(--color-bg)}
.btn-lg{padding:1rem 1.75rem;font-size:var(--fs-base);border-radius:var(--radius-lg)}
.btn-sm{padding:.5rem .9rem;font-size:var(--fs-xs)}
.btn-block{width:100%}

/* ============ Cards ============ */
.card{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  padding:var(--sp-6);
  box-shadow:var(--shadow-xs);
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.card-hover:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.card-flush{padding:0;overflow:hidden}

/* Course card */
.course-card{display:flex;flex-direction:column;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;transition:transform var(--transition),box-shadow var(--transition)}
.course-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.course-card__media{position:relative;aspect-ratio:16/10;background:linear-gradient(135deg,var(--color-primary),#164a7d);overflow:hidden}
.course-card__media::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 20%,rgba(245,130,32,.35),transparent 60%)}
.course-card__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1}
.course-card__badge{position:absolute;top:12px;left:12px;z-index:2}
.course-card__body{padding:var(--sp-5);display:flex;flex-direction:column;gap:var(--sp-3);flex:1}
.course-card__meta{display:flex;gap:var(--sp-4);color:var(--color-muted);font-size:var(--fs-sm)}
.course-card__title{font-size:var(--fs-lg);font-weight:600;line-height:1.35}
.course-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:var(--sp-4);border-top:1px solid var(--color-border)}
.course-card__price{font-weight:700;color:var(--color-primary);font-size:var(--fs-lg)}

/* Instructor card */
.instructor-card{text-align:center;padding:var(--sp-6);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:transform var(--transition),box-shadow var(--transition)}
.instructor-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.instructor-card__avatar{width:96px;height:96px;border-radius:50%;margin:0 auto var(--sp-4);background:linear-gradient(135deg,var(--color-primary),var(--color-accent));color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.75rem;font-weight:700}

/* Consultant Card V2 (Portrait Design) */
.consultant-card-v2 {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  height: 100%;
}
.consultant-card-v2:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.consultant-card-v2__img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  background: var(--color-bg);
  display: block;
}
.consultant-card-v2__avatar-fallback {
  width: 100%;
  aspect-ratio: 4 / 5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  background: var(--color-primary-50);
  color: var(--color-primary);
  font-weight: 700;
}
.consultant-card-v2__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.consultant-card-v2__name {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.3;
}
.consultant-card-v2__subtitle {
  font-size: 13px;
  color: var(--color-text);
  margin-bottom: 16px;
  line-height: 1.5;
}
.consultant-card-v2__bullets {
  list-style: disc;
  padding-left: 20px;
  margin: 0 0 24px 0;
  font-size: 13px;
  color: var(--color-text);
  line-height: 1.6;
}
.consultant-card-v2__bullets li {
  margin-bottom: 6px;
}
.consultant-card-v2__footer {
  margin-top: auto;
  display: flex;
  gap: 8px;
  align-items: center;
}
.consultant-card-v2__social {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #0077b5; /* LinkedIn Blue */
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 14px;
}
.consultant-card-v2__social.portfolio {
  background: #333;
}

/* Stat card */
.stat-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--sp-6);transition:transform var(--transition),box-shadow var(--transition)}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.stat-card__label{color:var(--color-muted);font-size:var(--fs-sm);font-weight:500;text-transform:uppercase;letter-spacing:.05em}
.stat-card__value{font-size:var(--fs-3xl);font-weight:700;color:var(--color-text);margin-top:var(--sp-2)}
.stat-card__delta{margin-top:var(--sp-2);font-size:var(--fs-sm);font-weight:500}
.stat-card__delta.up{color:var(--color-success)}
.stat-card__delta.down{color:var(--color-danger)}
.stat-card__icon{width:44px;height:44px;border-radius:var(--radius-md);background:var(--color-accent-50);color:var(--color-accent);display:flex;align-items:center;justify-content:center;margin-bottom:var(--sp-4)}

/* ============ Badges ============ */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--radius-full);font-size:var(--fs-xs);font-weight:600;background:var(--color-primary-50);color:var(--color-primary)}
.badge-accent{background:var(--color-accent-50);color:var(--color-accent)}
.badge-success{background:#ecfdf5;color:var(--color-success)}
.badge-warn{background:#fef3c7;color:#92400e}
.badge-live{background:#fee2e2;color:#b91c1c}
.badge-live::before{content:"";width:6px;height:6px;border-radius:50%;background:#b91c1c;animation:pulse 1.5s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* ============ Forms ============ */
.form{display:flex;flex-direction:column;gap:var(--sp-5)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-4)}
@media(max-width:640px){.form-row{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:var(--sp-2)}
.field label{font-size:var(--fs-sm);font-weight:600;color:var(--color-text)}
.field .hint{font-size:var(--fs-xs);color:var(--color-muted)}
.input,.select,.textarea{
  width:100%;padding:.75rem 1rem;background:#fff;border:1px solid var(--color-border);
  border-radius:var(--radius-md);font-size:var(--fs-sm);color:var(--color-text);
  transition:border-color var(--transition),box-shadow var(--transition);
}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 4px rgba(11,58,99,.08)}
.textarea{resize:vertical;min-height:120px}
.checkbox{display:flex;align-items:center;gap:var(--sp-2);font-size:var(--fs-sm);color:var(--color-muted)}
.checkbox input{width:16px;height:16px;accent-color:var(--color-accent)}

/* ============ Alerts ============ */
.alert{padding:var(--sp-4);border-radius:var(--radius-md);border:1px solid;display:flex;gap:var(--sp-3);align-items:flex-start;font-size:var(--fs-sm)}
.alert-info{background:#eff6ff;border-color:#bfdbfe;color:#1e40af}
.alert-success{background:#ecfdf5;border-color:#a7f3d0;color:#065f46}
.alert-warn{background:#fffbeb;border-color:#fde68a;color:#92400e}
.alert-danger{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.alert-error{background:#fef2f2;border-color:#fecaca;color:#991b1b}

/* ============ Tables ============ */
.table-wrap{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;overflow-x:auto}
.table{width:100%;border-collapse:collapse;font-size:var(--fs-sm)}
.table th,.table td{padding:var(--sp-4);text-align:left;border-bottom:1px solid var(--color-border)}
.table th{background:var(--color-bg);font-weight:600;color:var(--color-muted);text-transform:uppercase;font-size:var(--fs-xs);letter-spacing:.05em}
.table tbody tr:last-child td{border-bottom:0}
.table tbody tr{transition:background var(--transition)}
.table tbody tr:hover{background:var(--color-bg)}

/* ============ Modals ============ */
.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.55);display:flex;align-items:center;justify-content:center;padding:var(--sp-6);opacity:0;pointer-events:none;transition:opacity var(--transition);z-index:100}
.modal-backdrop.open{opacity:1;pointer-events:auto}
.modal{background:#fff;border-radius:var(--radius-lg);max-width:520px;width:100%;padding:var(--sp-8);box-shadow:var(--shadow-lg);transform:translateY(20px) scale(.98);transition:transform var(--transition)}
.modal-backdrop.open .modal{transform:none}
@media(max-width:640px){
  .modal{padding:var(--sp-4)}
}

/* ============ Dropdown ============ */
.dropdown{position:relative}
.dropdown__menu{position:absolute;top:calc(100% + 8px);right:0;min-width:220px;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:var(--sp-2);opacity:0;transform:translateY(-6px);pointer-events:none;transition:opacity var(--transition),transform var(--transition);z-index:20}
.dropdown.open .dropdown__menu{opacity:1;transform:none;pointer-events:auto}
.dropdown__item{display:flex;align-items:center;gap:var(--sp-3);padding:.6rem .8rem;border-radius:var(--radius-sm);color:var(--color-text);font-size:var(--fs-sm);cursor:pointer;transition:background var(--transition)}
.dropdown__item:hover{background:var(--color-bg)}

/* ============ Breadcrumbs ============ */
.breadcrumbs{display:flex;align-items:center;gap:var(--sp-2);font-size:var(--fs-sm);color:var(--color-muted);margin-bottom:var(--sp-6)}
.breadcrumbs a{color:var(--color-muted)}
.breadcrumbs a:hover{color:var(--color-primary)}
.breadcrumbs .sep{opacity:.5}

/* ============ Skeleton ============ */
.skeleton{background:linear-gradient(90deg,#eef1f5 0%,#f7f8fa 50%,#eef1f5 100%);background-size:200% 100%;animation:sk 1.4s infinite;border-radius:var(--radius-sm)}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ============ Empty state ============ */
.empty{text-align:center;padding:var(--sp-16) var(--sp-6);border:1px dashed var(--color-border);border-radius:var(--radius-lg);background:#fff}
.empty__icon{width:64px;height:64px;margin:0 auto var(--sp-4);border-radius:var(--radius-full);background:var(--color-primary-50);color:var(--color-primary);display:flex;align-items:center;justify-content:center}

/* ============ Animations ============ */
.fade-in{animation:fadeIn .6s ease both}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}