/* ========================================================================
   Components - Componentes reutilizáveis
   ======================================================================== */

/* ========================================================================
   Button Components
   ======================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
  text-align: center;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 9999px;
  transition: all var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn__icon {
  flex-shrink: 0;
  width: 1.25em;
  height: 1.25em;
}

/* Primary Button - Azul Sereno */
.btn--primary {
  background: linear-gradient(135deg, var(--color-brand-primary) 0%, var(--color-brand-secondary) 100%);
  color: var(--color-white);
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(75, 124, 204, 0.25);
  font-weight: 500;
}

.btn--primary:hover,
.btn--primary:focus {
  background: linear-gradient(135deg, var(--color-brand-darker) 0%, var(--color-brand-primary) 100%);
  box-shadow: 0 8px 20px rgba(75, 124, 204, 0.35);
  transform: translateY(-2px);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(75, 124, 204, 0.25);
}

/* Secondary Button - Softer */
.btn--secondary {
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-gray-700);
  border-color: rgba(0, 0, 0, 0.05);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  font-weight: 500;
}

.btn--secondary:hover,
.btn--secondary:focus {
  background: var(--color-white);
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

/* ========================================================================
   Header Component
   ======================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to bottom, 
    rgba(15, 23, 42, 0.98) 0%, 
    rgba(30, 41, 59, 0.95) 50%, 
    rgba(15, 23, 42, 0.98) 100%);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  z-index: var(--z-fixed);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.header--scrolled {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  border-bottom-color: rgba(148, 163, 184, 0.5);
}

/* Decorative gradient lines at bottom - Azul Sereno */
.header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, 
    transparent 0%, 
    rgba(75, 124, 204, 0.4) 50%, 
    transparent 100%);
}

.header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

@media (min-width: 640px) {
  .header__content {
    height: 5rem;
  }
}

@media (min-width: 1024px) {
  .header__content {
    height: 5.5rem;
  }
}

/* Logo Container with Glass Effect */
.header__logo {
  margin-left: -0.5rem;
}

@media (min-width: 640px) {
  .header__logo {
    margin-left: 0;
  }
}

.header__logo a {
  display: block;
  background: linear-gradient(to right,
    rgba(255, 255, 255, 0.15) 0%,
    rgba(255, 255, 255, 0.10) 50%,
    rgba(255, 255, 255, 0.15) 100%);
  padding: 0.625rem 1rem;
  border-radius: 1rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.25);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.header__logo a:hover {
  border-color: rgba(255, 255, 255, 0.35);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4),
              0 0 30px rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

/* Logo hover glow effect - Azul Sereno */
.header__logo a::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right,
    rgba(75, 124, 204, 0) 0%,
    rgba(75, 124, 204, 0.15) 50%,
    rgba(75, 124, 204, 0) 100%);
  border-radius: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.header__logo a:hover::before {
  opacity: 1;
}

.header__logo-img {
  height: 2.25rem;
  width: auto;
  display: block;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  filter: brightness(0.85) contrast(1.25) saturate(0.95) drop-shadow(0 0 15px rgba(75, 124, 204, 0.25));
}

@media (min-width: 640px) {
  .header__logo-img {
    height: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .header__logo-img {
    height: 3rem;
  }
}

.header__logo a:hover .header__logo-img {
  transform: scale(1.05);
  filter: brightness(0.9) contrast(1.3) saturate(1) drop-shadow(0 0 20px rgba(251, 191, 36, 0.35));
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

@media (min-width: 768px) {
  .header__nav {
    gap: 1rem;
  }
}

.header__nav-link {
  color: rgba(255, 255, 255, 0.9);
  font-weight: var(--font-weight-medium);
  font-size: 0.75rem;
  transition: all var(--transition-fast);
  position: relative;
  padding: 0.5rem 0.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
}

@media (min-width: 640px) {
  .header__nav-link {
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
  }
}

@media (min-width: 1024px) {
  .header__nav-link {
    font-size: 0.9375rem;
  }
}

.header__nav-link:hover,
.header__nav-link:focus {
  color: #fcd34d;
  background: rgba(255, 255, 255, 0.05);
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0.25rem;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(to right, #fde68a, #fcd34d);
  transition: all var(--transition-base);
  transform: translateX(-50%);
  border-radius: 1px;
}

.header__nav-link:hover::after,
.header__nav-link:focus::after {
  width: 70%;
}

.header__nav-link--active {
  color: #fcd34d;
  background: rgba(255, 255, 255, 0.08);
}

.header__nav-link--active::after {
  width: 70%;
}

/* Header CTA Button (Ajuda) */
.header__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: linear-gradient(to right, #f59e0b, #d97706);
  color: white;
  font-weight: var(--font-weight-medium);
  font-size: 0.75rem;
  padding: 0.5rem 0.75rem;
  border-radius: 9999px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(251, 191, 36, 0.3);
  text-decoration: none;
}

@media (min-width: 640px) {
  .header__cta {
    font-size: 0.875rem;
    padding: 0.625rem 1rem;
    gap: 0.5rem;
  }
}

@media (min-width: 1024px) {
  .header__cta {
    padding: 0.625rem 1.25rem;
  }
}

.header__cta:hover {
  background: linear-gradient(to right, #d97706, #b45309);
  border-color: rgba(251, 191, 36, 0.5);
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.2);
  transform: translateY(-1px);
}

.header__cta-icon {
  width: 1rem;
  height: 1rem;
  transition: transform 0.3s ease;
}

@media (min-width: 640px) {
  .header__cta-icon {
    width: 1rem;
    height: 1rem;
  }
}

.header__cta:hover .header__cta-icon {
  transform: scale(1.1);
}

.header__nav-link--active::after {
  width: 100%;
}

.header__cta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2-5) var(--space-4);
  background: linear-gradient(135deg, var(--color-accent-500) 0%, var(--color-accent-600) 100%);
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.header__cta:hover,
.header__cta:focus {
  background: linear-gradient(135deg, var(--color-accent-600) 0%, var(--color-accent-700) 100%);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.header__cta-icon {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

/* ========================================================================
   Footer Component
   ======================================================================== */

.footer {
  background: linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-primary-900) 100%);
  color: var(--color-white);
  padding: var(--space-16) 0 var(--space-8);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 25% 25%, rgba(251, 191, 36, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
}

.footer__content {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .footer__content {
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-12);
  }
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.footer__logo {
  width: var(--space-10);
  height: var(--space-10);
  background: linear-gradient(135deg, var(--color-accent-500) 0%, var(--color-accent-600) 100%);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
}

.footer__brand-name {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
}

.footer__description {
  color: var(--color-gray-300);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
  max-width: 32rem;
}

.footer__status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(255, 255, 255, 0.1);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.2);
  width: fit-content;
}

.footer__status-indicator {
  width: var(--space-2);
  height: var(--space-2);
  background: var(--color-success);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.footer__status-text {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-300);
}

.footer__links-title,
.footer__info-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-white);
  margin-bottom: var(--space-6);
  position: relative;
}

.footer__links-title::after,
.footer__info-title::after {
  content: '';
  position: absolute;
  bottom: -var(--space-2);
  left: 0;
  width: var(--space-8);
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-400) 0%, var(--color-accent-600) 100%);
  border-radius: var(--radius-full);
}

.footer__links-list,
.footer__info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  color: var(--color-gray-300);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.footer__link:hover,
.footer__link:focus {
  color: var(--color-accent-400);
}

.footer__bottom {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer__copyright p {
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
}

.footer__credits {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
}

.footer__credits svg {
  color: var(--color-accent-400);
}

/* ========================================================================
   Card Components
   ======================================================================== */

.card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-base);
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
  border-color: var(--color-accent-200);
}

.card__header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-gray-100);
}

.card__body {
  padding: var(--space-6);
}

.card__footer {
  padding: var(--space-6);
  border-top: 1px solid var(--color-gray-100);
  background: var(--color-gray-50);
}

/* ========================================================================
   Form Components
   ======================================================================== */

.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3);
  font-size: var(--font-size-base);
  color: var(--color-gray-800);
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent-500);
  box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: var(--space-24);
}

.form-error {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--space-1);
}

.form-success {
  color: var(--color-success);
  font-size: var(--font-size-sm);
  margin-top: var(--space-1);
}