/* ============================================
   Components: Buttons, Cards, Badges, Forms
   ============================================ */

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  line-height: 1;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md), var(--shadow-glow-green);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-heading);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-slate-400);
  background: var(--color-bg-secondary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-outline-green {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline-green:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-body);
  border-color: transparent;
  padding: 0.5rem 1rem;
}

.btn-ghost:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-heading);
}

.btn-sm { padding: 0.5rem 1.25rem; font-size: var(--fs-sm); }
.btn-lg { padding: 1rem 2.25rem; font-size: var(--fs-md); }

/* ── Cards ── */
.card {
  background: var(--color-glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-glass-border);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-glass-border-hover);
  transform: translateY(-2px);
}

.card-elevated {
  background: var(--color-glass-bg-strong);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-glass-border-strong);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: 0 12px 48px var(--color-card-shadow-elevated);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  background: var(--color-bg-tertiary);
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  color: var(--color-text-heading);
  margin-bottom: var(--space-2);
}

.card-text {
  font-size: var(--fs-base);
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
}

/* ── Product Card ── */
.product-card {
  background: var(--color-glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-glass-border);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  box-shadow: var(--shadow-card-large);
  border-color: var(--color-glass-border-hover);
  transform: translateY(-4px);
}

.product-card__image-wrap {
  position: relative;
  height: 220px;
  background: var(--color-bg-tertiary);
  overflow: hidden;
}

.product-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card__image {
  transform: scale(1.05);
}

.product-card__badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

.product-card__body {
  padding: var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card__title {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--color-text-heading);
  margin-bottom: var(--space-2);
}

.product-card__specs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.product-card__spec {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

.product-card__cta {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  color: var(--color-primary);
  transition: gap var(--transition-fast);
}

.product-card:hover .product-card__cta { gap: var(--space-3); }

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.25rem 0.75rem;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wide);
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.badge-green { background: var(--color-forest-50); color: var(--color-forest-700); border: 1px solid var(--color-forest-200); }
.badge-slate { background: var(--color-slate-100); color: var(--color-slate-600); border: 1px solid var(--color-slate-200); }
.badge-amber { background: var(--color-badge-amber-bg); color: var(--color-amber-600); border: 1px solid var(--color-badge-amber-border); }
.badge-blue { background: var(--color-badge-blue-bg); color: var(--color-blue-600); border: 1px solid var(--color-badge-blue-border); }

/* ── Trust Badge ── */
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.5rem 1rem;
  background: var(--color-forest-50);
  border: 1px solid var(--color-forest-200);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-forest-700);
}

/* ── Form Elements ── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text-heading);
}

.form-label .required { color: var(--color-red-500); margin-left: 2px; }

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--fs-base);
  color: var(--color-text-heading);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.form-input::placeholder, .form-textarea::placeholder { color: var(--color-text-muted); }
.form-textarea { resize: vertical; min-height: 120px; }

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-error { font-size: var(--fs-xs); color: var(--color-error); display: none; }
.form-group.has-error .form-input { border-color: var(--color-error); }
.form-group.has-error .form-error { display: block; }

/* ── Spec Table ── */
.spec-table {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.spec-table th, .spec-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: var(--fs-sm);
  border-bottom: 1px solid var(--color-border-light);
}

.spec-table th {
  background: var(--color-bg-secondary);
  font-weight: var(--fw-semibold);
  color: var(--color-text-heading);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
}

.spec-table tr:last-child td { border-bottom: none; }
.spec-table tr:hover td { background: var(--color-slate-50); }

.spec-table .spec-key {
  font-weight: var(--fw-medium);
  color: var(--color-text-heading);
  white-space: nowrap;
  width: 40%;
}

.spec-table .spec-value { font-family: var(--font-mono); font-size: var(--fs-sm); }

/* ── Pricing Table ── */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-16); }

.pricing-card {
  background: var(--color-glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-glass-border);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
}

.pricing-card:hover { box-shadow: var(--shadow-card-large); border-color: var(--color-glass-border-hover); transform: translateY(-4px); }

.pricing-card--featured {
  border-color: var(--color-step-hover-border);
  background: var(--color-glass-bg-strong);
  box-shadow: var(--shadow-glow-green), var(--shadow-card);
}

.pricing-card--featured::before {
  content: 'Best Value';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.pricing-card__tier { font-family: var(--font-heading); font-size: var(--fs-lg); font-weight: var(--fw-semibold); color: var(--color-text-heading); margin-bottom: var(--space-2); }
.pricing-card__volume { font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--color-text-secondary); margin-bottom: var(--space-6); }
.pricing-card__price { font-family: var(--font-heading); font-size: var(--fs-4xl); font-weight: var(--fw-bold); color: var(--color-text-heading); }
.pricing-card__unit { font-size: var(--fs-sm); color: var(--color-text-secondary); }
.pricing-card__features { margin: var(--space-6) 0; text-align: left; }

.pricing-card__feature {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  font-size: var(--fs-sm);
  color: var(--color-text-body);
}

.pricing-card__feature svg { width: 16px; height: 16px; color: var(--color-success); flex-shrink: 0; }

/* ── Modal ── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--color-modal-backdrop);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-backdrop.is-active { opacity: 1; visibility: visible; }

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  max-width: 560px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-2xl);
}

.modal.is-active { opacity: 1; visibility: visible; transform: translate(-50%, -50%) scale(1); }

.modal__header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-6); }
.modal__title { font-family: var(--font-heading); font-size: var(--fs-2xl); font-weight: var(--fw-semibold); color: var(--color-text-heading); }

.modal__close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.modal__close:hover { background: var(--color-bg-tertiary); color: var(--color-text-heading); }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  background: var(--color-dark-section-bg);
  color: var(--color-dark-section-heading);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-toast);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-spring);
}

.toast.is-visible { transform: translateY(0); opacity: 1; }
.toast-success { border-left: 3px solid var(--color-success); }
.toast-error { border-left: 3px solid var(--color-error); }

/* ── Tabs ── */
.tabs {
  display: flex;
  gap: var(--space-1);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-8);
}

.tab-btn {
  padding: var(--space-3) var(--space-5);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--transition-fast);
}

.tab-btn:hover { color: var(--color-text-heading); }
.tab-btn.is-active { color: var(--color-primary); border-bottom-color: var(--color-primary); }

.tab-panel { display: none; }
.tab-panel.is-active { display: block; }