/* ============================================================
   TECHFREELA — components.css
   Botões, Formulários, Cards, Tags, Badges, Modais, Toast
   ============================================================ */

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: none;
  border-radius: var(--r-md);
  font-family: var(--font-body);
  font-weight: 600;
  cursor: pointer;
  transition: var(--trans-normal);
  white-space: nowrap;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
}

/* Sizes */
.btn-sm  { padding: 0.4rem 0.9rem;  font-size: 0.8rem; }
.btn-md  { padding: 0.6rem 1.25rem; font-size: 0.875rem; }
.btn-lg  { padding: 0.875rem 2rem;  font-size: 1rem; }
.btn-xl  { padding: 1rem 2.25rem;   font-size: 1.05rem; }
.btn-full { width: 100%; padding: 0.875rem; font-size: 1rem; border-radius: var(--r-md); }

/* Variants */
.btn-primary {
  background: var(--accent);
  color: #000;
  font-weight: 700;
}
.btn-primary:hover {
  background: var(--accent-h);
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border2);
}
.btn-secondary:hover {
  background: var(--surface2);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text2);
  border-radius: var(--r-sm);
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
}
.btn-ghost:hover {
  background: var(--surface);
  color: var(--text);
}

.btn-danger {
  background: rgba(255,71,87,0.12);
  color: var(--red);
  border: 1px solid rgba(255,71,87,0.25);
}
.btn-danger:hover {
  background: rgba(255,71,87,0.2);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn-outline:hover {
  background: rgba(0,245,196,0.08);
}

/* ---- TAGS / BADGES ---- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.2px;
  line-height: 1;
}

.tag-blue   { background: rgba(59,130,246,0.14);  color: #60a5fa;    border: 1px solid rgba(59,130,246,0.25); }
.tag-green  { background: rgba(0,245,196,0.1);    color: var(--accent); border: 1px solid rgba(0,245,196,0.2); }
.tag-purple { background: rgba(124,58,237,0.14);  color: #a78bfa;    border: 1px solid rgba(124,58,237,0.25); }
.tag-orange { background: rgba(245,158,11,0.12);  color: var(--accent3); border: 1px solid rgba(245,158,11,0.25); }
.tag-pink   { background: rgba(236,72,153,0.12);  color: #f472b6;    border: 1px solid rgba(236,72,153,0.25); }
.tag-gray   { background: rgba(144,144,176,0.1);  color: var(--text2); border: 1px solid var(--border); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-accent {
  background: rgba(0,245,196,0.08);
  border: 1px solid rgba(0,245,196,0.2);
  color: var(--accent);
}

.badge-warning {
  background: rgba(245,158,11,0.08);
  border: 1px solid rgba(245,158,11,0.2);
  color: var(--accent3);
}

.badge-dot::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s infinite;
}

/* ---- CARDS ---- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 1.5rem;
  transition: var(--trans-normal);
}

.card-hover:hover {
  border-color: var(--border2);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card-accent-top {
  position: relative;
  overflow: hidden;
}
.card-accent-top::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: var(--trans-normal);
}
.card-accent-top:hover::before { opacity: 1; }

.card-accent-left {
  position: relative;
  overflow: hidden;
}
.card-accent-left::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transition: transform 0.3s;
  transform-origin: center;
  border-radius: 0 2px 2px 0;
}
.card-accent-left:hover::before { transform: scaleY(1); }

/* ---- FORMS ---- */
.form-group { margin-bottom: 1.25rem; }

.form-label {
  display: block;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text2);
  margin-bottom: 0.5rem;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.75rem 1rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: var(--trans-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,245,196,0.08);
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--text3); }

.form-select { cursor: pointer; }
.form-select option { background: var(--bg3); }

.form-textarea {
  min-height: 100px;
  resize: vertical;
  line-height: 1.6;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-hint {
  font-size: 0.78rem;
  color: var(--text3);
  margin-top: 0.35rem;
}

.form-error {
  font-size: 0.78rem;
  color: var(--red);
  margin-top: 0.35rem;
  display: none;
}

.form-group.has-error .form-input,
.form-group.has-error .form-select,
.form-group.has-error .form-textarea {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(255,71,87,0.08);
}

.form-group.has-error .form-error { display: block; }

/* Alert box inside form */
.form-alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  border-radius: var(--r-md);
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
  font-size: 0.85rem;
}

.form-alert-icon { font-size: 1.1rem; flex-shrink: 0; }
.form-alert-title { font-weight: 600; margin-bottom: 0.2rem; }
.form-alert-body  { color: var(--text2); }

.form-alert-warning {
  background: rgba(245,158,11,0.08);
  border: 1px solid rgba(245,158,11,0.2);
}

.form-alert-success {
  background: rgba(0,245,196,0.06);
  border: 1px solid rgba(0,245,196,0.15);
}

/* ---- DIVIDER ---- */
.divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--text3);
  font-size: 0.8rem;
  margin: 1rem 0;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ---- TABS ---- */
.tab-switcher {
  display: flex;
  gap: 0.4rem;
  background: var(--surface);
  border-radius: var(--r-md);
  padding: 0.35rem;
  margin-bottom: 1.75rem;
}

.tab-btn {
  flex: 1;
  padding: 0.6rem;
  border-radius: var(--r-sm);
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.875rem;
  transition: var(--trans-normal);
  background: transparent;
  color: var(--text2);
}

.tab-btn.active {
  background: var(--accent);
  color: #000;
  font-weight: 700;
}

/* ---- MODAL ---- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(10px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay.open {
  display: flex;
  animation: fadeIn 0.2s ease;
}

.modal {
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--r-2xl);
  padding: 2.5rem;
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  animation: spinIn 0.3s ease;
}

.modal-wide { max-width: 700px; }
.modal-narrow { max-width: 440px; }

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text2);
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--trans-fast);
}
.modal-close:hover {
  color: var(--text);
  background: var(--surface2);
  border-color: var(--border2);
}

.modal-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.5px;
  margin-bottom: 0.4rem;
}

.modal-sub {
  color: var(--text2);
  font-size: 0.9rem;
  margin-bottom: 1.75rem;
}

/* ---- CREDITS BADGE ---- */
.credits-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r-sm);
  padding: 0.4rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent3);
  cursor: pointer;
  transition: var(--trans-fast);
}
.credits-badge:hover { border-color: var(--accent3); }

/* ---- TOAST ---- */
#toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r-lg);
  padding: 1rem 1.5rem;
  z-index: 9999;
  display: none;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  box-shadow: var(--shadow-md);
  max-width: 340px;
  animation: slideUp 0.3s ease;
}

#toast.show { display: flex; }

.toast-icon { font-size: 1.25rem; flex-shrink: 0; }
.toast-msg  { color: var(--text); line-height: 1.4; }

/* ---- SKILL BARS ---- */
.skill-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
}
.skill-item:last-child { border-bottom: none; }
.skill-item-name { font-size: 0.875rem; }

.skill-bar-wrap {
  width: 100px;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.skill-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  border-radius: 2px;
  transition: width 0.8s ease;
}

/* ---- EMPTY STATE ---- */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text3);
}
.empty-state-icon { font-size: 3.5rem; margin-bottom: 1rem; }
.empty-state-title { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; color: var(--text2); margin-bottom: 0.5rem; }
.empty-state-text  { font-size: 0.9rem; }

/* ---- LOADING ---- */
.loading-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .form-row  { grid-template-columns: 1fr; }
  .modal     { padding: 1.75rem; }
  .modal-title { font-size: 1.25rem; }
}

/* ---- PAYMENT METHOD BUTTONS ---- */
.pay-method-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1.5px solid var(--border2);
  border-radius: var(--r-md);
  cursor: pointer;
  color: var(--text);
  font-family: var(--font-body);
  transition: var(--trans-normal);
  text-align: left;
}
.pay-method-btn:hover {
  border-color: var(--accent);
  background: rgba(99,102,241,0.06);
}
.pay-method-btn.active {
  border-color: var(--accent);
  background: rgba(99,102,241,0.1);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

/* ---- ADMIN TABLE ---- */
.adm-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
.adm-table th {
  text-align: left;
  padding: 0.6rem 0.75rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text3);
  border-bottom: 1px solid var(--border2);
}
.adm-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  color: var(--text2);
}
.adm-table tr:last-child td { border-bottom: none; }
.adm-table tr:hover td { background: rgba(255,255,255,0.02); }
.status-pill {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.status-finished  { background:rgba(16,185,129,0.15); color:#10b981; }
.status-pending   { background:rgba(245,158,11,0.15);  color:#f59e0b; }
.status-failed,
.status-expired   { background:rgba(239,68,68,0.12);   color:#ef4444; }
.status-waiting,
.status-confirming { background:rgba(99,102,241,0.15); color:var(--accent); }