/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg:        #0d1117;
  --bg-card:   #161b22;
  --bg-modal:  #1c2128;
  --border:    #30363d;
  --accent:    #0693e3;
  --accent-2:  #9b51e0;
  --text:      #e6edf3;
  --text-muted:#8b949e;
  --danger:    #f85149;
  --success:   #3fb950;
  --radius:    10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
}

/* ===== Header ===== */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: #010409;
  position: sticky;
  top: 0;
  z-index: 100;
  flex-wrap: wrap;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: .6rem;
}

.brand-mark {
  color: var(--accent);
  font-size: 1.4rem;
  line-height: 1;
}

.brand-name {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: .02em;
}

.brand-sub {
  display: block;
  font-size: .7rem;
  color: var(--text-muted);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
}

/* ===== Search ===== */
.search-input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: .85rem;
  padding: .45rem .75rem;
  width: 180px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.search-input::placeholder { color: var(--text-muted); }
.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(6,147,227,.15);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .45rem .85rem;
  border-radius: var(--radius);
  font-size: .82rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .15s;
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover { background: #0881cc; border-color: #0881cc; }

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--bg-card); border-color: var(--text-muted); }

.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-danger:hover { background: #da3630; }

/* ===== Tab bar ===== */
.tab-bar {
  display: flex;
  gap: .25rem;
  padding: .6rem 1.5rem;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
  background: #010409;
}
.tab-bar::-webkit-scrollbar { display: none; }

.tab {
  padding: .35rem .75rem;
  border-radius: 20px;
  font-size: .8rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  color: var(--text-muted);
  white-space: nowrap;
  transition: all .15s;
  background: transparent;
}
.tab:hover { color: var(--text); background: var(--bg-card); }
.tab.active {
  background: rgba(6,147,227,.15);
  border-color: var(--accent);
  color: var(--accent);
}

.tab-badge {
  display: inline-block;
  background: var(--border);
  color: var(--text-muted);
  border-radius: 10px;
  padding: 0 .4rem;
  font-size: .7rem;
  margin-left: .3rem;
  line-height: 1.5;
}
.tab.active .tab-badge {
  background: rgba(6,147,227,.3);
  color: var(--accent);
}

/* ===== Card grid ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1rem;
}

/* ===== Card ===== */
.card-wrapper {
  position: relative;
}

.card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem;
  text-decoration: none;
  color: var(--text);
  transition: border-color .2s, box-shadow .2s, transform .15s;
  height: 100%;
}
.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 24px rgba(6,147,227,.12);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: .5rem;
  line-height: 1;
}

.card-name {
  font-weight: 600;
  font-size: .95rem;
  color: #fff;
}

.card-desc {
  font-size: .78rem;
  color: var(--text-muted);
  margin-top: .25rem;
  line-height: 1.4;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem;
  margin-top: .6rem;
}

.tag-pill {
  font-size: .65rem;
  padding: .15rem .45rem;
  border-radius: 10px;
  background: rgba(155,81,224,.12);
  color: #b98de0;
  border: 1px solid rgba(155,81,224,.2);
  white-space: nowrap;
}

/* Card action buttons (shown on hover) */
.card-actions {
  position: absolute;
  top: .5rem;
  right: .5rem;
  display: flex;
  gap: .25rem;
  opacity: 0;
  transition: opacity .15s;
}
.card-wrapper:hover .card-actions { opacity: 1; }

.card-btn {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-modal);
  color: var(--text-muted);
  font-size: .75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .15s;
}
.card-btn:hover { border-color: var(--text-muted); color: var(--text); }
.card-btn.delete:hover { border-color: var(--danger); color: var(--danger); }

/* ===== Empty state ===== */
.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 4rem 0;
  font-size: .9rem;
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 1rem;
}

.modal {
  background: var(--bg-modal);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: 100%;
  max-width: 480px;
  padding: 1.5rem;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.modal-header h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: .25rem;
  border-radius: 4px;
  transition: color .15s;
}
.modal-close:hover { color: var(--text); }

/* ===== Form ===== */
.form-row {
  display: flex;
  gap: .75rem;
  align-items: flex-start;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  margin-bottom: .9rem;
}

.form-group label {
  font-size: .8rem;
  font-weight: 500;
  color: var(--text-muted);
}

.form-group input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: .875rem;
  padding: .5rem .7rem;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  width: 100%;
}
.form-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(6,147,227,.12);
}
.form-group input::placeholder { color: var(--text-muted); }

.required { color: var(--accent); }
.form-hint { color: var(--text-muted); font-weight: 400; font-size: .72rem; }

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: .5rem;
  margin-top: .5rem;
}

.form-error {
  color: var(--danger);
  font-size: .8rem;
  margin-top: .5rem;
  text-align: center;
}

/* ===== Confirm bar ===== */
.confirm-bar {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-modal);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .75rem 1.2rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
  z-index: 300;
  white-space: nowrap;
  font-size: .875rem;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .header { padding: .85rem 1rem; }
  .search-input { width: 130px; }
  .brand-sub { display: none; }
  .card-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .tab-bar { padding: .5rem 1rem; }
  .container { padding: 1rem; }
  .confirm-bar { flex-wrap: wrap; justify-content: center; bottom: .75rem; }
}