/* =============================================
   COMPONENTS.CSS — Buttons, Cards, Navbar, Forms, Accordion
   Alana Amorim | Nutricionista
   ============================================= */

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  border-radius: var(--radius-full);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1;
  transition: all var(--transition-normal);
  text-align: center;
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-surface);
  box-shadow: 0 4px 20px rgba(169, 72, 139, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(169, 72, 139, 0.45);
  color: var(--color-surface);
}

.btn-primary:active {
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-surface);
  box-shadow: 0 4px 20px rgba(137, 173, 91, 0.3);
}

.btn-secondary:hover {
  background-color: var(--color-secondary-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(137, 173, 91, 0.4);
  color: var(--color-surface);
}

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

.btn-outline:hover {
  background: var(--gradient-primary);
  color: var(--color-surface);
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.btn-whatsapp {
  background: #25d366;
  color: white;
  box-shadow: none;
}

.btn-whatsapp:hover {
  transform: translateY(-2px);
  background: #1ebc5a;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
  color: white;
}

.btn-lg {
  padding: 1.1rem 2.5rem;
  font-size: 1.1rem;
}

/* =============================================
   CARDS
   ============================================= */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid var(--color-border);
}

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

/* =============================================
   TAGS / BADGES
   ============================================= */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 1rem;
  background-color: rgba(169, 72, 139, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(169, 72, 139, 0.2);
}

.tag-green {
  background-color: rgba(137, 173, 91, 0.1);
  color: var(--color-secondary-dark);
  border-color: rgba(137, 173, 91, 0.2);
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all var(--transition-normal);
  background-color: rgba(253, 249, 252, 0);
}

.navbar.scrolled {
  background-color: rgba(253, 249, 252, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--navbar-height);
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-logo img {
  height: 52px;
  width: auto;
  object-fit: contain;
}

.navbar-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.navbar-link {
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--color-text);
  position: relative;
  padding-bottom: 2px;
}

.navbar-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
}

.navbar-link:hover {
  color: var(--color-primary);
}

.navbar-link:hover::after,
.navbar-link.active::after {
  width: 100%;
}

.navbar-link.active {
  color: var(--color-primary);
}

.mobile-menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.4rem;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.mobile-menu-btn:hover {
  background-color: rgba(169, 72, 139, 0.08);
}

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

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.form-control {
  width: 100%;
  padding: 0.8rem 1.1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 1rem;
  color: var(--color-text);
  background-color: var(--color-surface);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.form-control::placeholder {
  color: #bbb;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(169, 72, 139, 0.12);
}

textarea.form-control {
  resize: vertical;
  min-height: 130px;
  line-height: 1.6;
}

/* =============================================
   ACCORDION (FAQ)
   ============================================= */
.accordion {
  width: 100%;
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--color-text);
  gap: 1rem;
  transition: color var(--transition-fast);
  font-family: var(--font-primary);
}

.accordion-header:hover {
  color: var(--color-primary);
}

.accordion-icon {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: var(--radius-full);
  background: rgba(169, 72, 139, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  transition: transform var(--transition-normal), background-color var(--transition-normal);
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
  background: var(--color-primary);
  color: white;
}

.accordion-item.active .accordion-header {
  color: var(--color-primary);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0, 1, 0, 1);
}

.accordion-item.active .accordion-body {
  max-height: 600px;
  transition: max-height 0.5s ease-in-out;
}

.accordion-content {
  padding: 0 0 1.25rem 0;
  color: var(--color-muted);
  line-height: 1.7;
  font-size: 0.9375rem;
}

/* =============================================
   STEP CARDS (Como Funciona)
   ============================================= */
.step-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  position: relative;
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

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

.step-number {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 auto 1.25rem;
  box-shadow: 0 4px 14px rgba(169, 72, 139, 0.35);
}

/* =============================================
   SOCIAL PROOF / STATS
   ============================================= */
.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-secondary);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  display: block;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--color-text);
  margin-top: 0.25rem;
}

/* =============================================
   WHATSAPP FLOAT BUTTON
   ============================================= */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background: #25d366;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
  z-index: 900;
  transition: all var(--transition-normal);
}

.whatsapp-float:hover {
  transform: scale(1.05);
  background: #1ebc5a;
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.4);
  color: white;
}