/* ============================================
   Components: Nav, Footer, Buttons, Cards
   ============================================ */

/* --- Navigation --- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background var(--duration-base) ease, box-shadow var(--duration-base) ease;
  background: transparent;
}

.nav--scrolled {
  background: rgba(22, 22, 22, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 2px 30px rgba(0, 0, 0, 0.3);
}

.nav__inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav__logo img {
  height: 100px;
  width: auto;
  border-radius: var(--radius-sm);
}

.nav__logo-text {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__link {
  font-family: var(--font-nav);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--white-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  transition: color var(--duration-fast) ease;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--pink);
  transition: width var(--duration-base) var(--ease-out-expo);
}

.nav__link:hover,
.nav__link--active {
  color: var(--white);
}

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

.nav__donate-btn {
  font-family: var(--font-nav);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 10px 24px;
  background: var(--gradient-pink);
  color: var(--white);
  border-radius: var(--radius-full);
  transition: transform var(--duration-fast) ease, box-shadow var(--duration-fast) ease;
}

.nav__donate-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-pink);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  cursor: pointer;
  z-index: 1001;
}

.nav__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--duration-base) ease, opacity var(--duration-fast) ease;
}

.nav__hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu Overlay */
.nav__mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(22, 22, 22, 0.98);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) ease;
}

.nav__mobile-menu.active {
  opacity: 1;
  pointer-events: all;
}

.nav__mobile-menu .nav__link {
  font-size: 1.5rem;
  color: var(--white);
}

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-family: var(--font-nav);
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 14px 36px;
  border-radius: var(--radius-full);
  transition: all var(--duration-base) var(--ease-out-expo);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--gradient-pink);
  color: var(--white);
  box-shadow: var(--shadow-pink);
}

.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-pink-hover);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--pink);
}

.btn--outline:hover {
  background: var(--pink-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-pink);
}

.btn--large {
  padding: 18px 48px;
  font-size: 1.1rem;
}

.btn--small {
  padding: 10px 24px;
  font-size: 0.85rem;
}

/* --- Carousel --- */

.carousel {
  position: relative;
  overflow: hidden;
  padding: 0 3rem;
}

.carousel__track {
  display: flex;
  gap: var(--space-md);
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.carousel__slide {
  flex: 0 0 calc((100% - var(--space-md) * 2) / 3);
  min-width: 0;
}

.carousel__slide .card {
  height: 100%;
}

.carousel__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--white-subtle);
  background: var(--dark-card);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.carousel__arrow:hover:not(:disabled) {
  background: var(--pink);
  border-color: var(--pink);
}

.carousel__arrow:disabled {
  opacity: 0.3;
  cursor: default;
}

.carousel__arrow--left {
  left: 0;
}

.carousel__arrow--right {
  right: 0;
}

.carousel__dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: var(--space-md);
}

.carousel__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--white-subtle);
  background: transparent;
  cursor: pointer;
  transition: all 0.3s;
  padding: 0;
}

.carousel__dot.active {
  background: var(--pink);
  border-color: var(--pink);
}

.carousel__dot:hover:not(.active) {
  border-color: var(--pink);
}

@media (max-width: 1023px) {
  .carousel__slide {
    flex: 0 0 calc((100% - var(--space-md)) / 2);
  }
}

@media (max-width: 767px) {
  .carousel {
    padding: 0 2.5rem;
  }
  .carousel__slide {
    flex: 0 0 100%;
  }
}

/* --- Cards --- */

.card {
  background: var(--dark-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--duration-base) var(--ease-out-expo),
              box-shadow var(--duration-base) ease;
  border: 1px solid var(--white-subtle);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(214, 77, 129, 0.3);
}

.card__image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform var(--duration-slow) ease;
}

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

.card__image-wrapper {
  overflow: hidden;
  position: relative;
}

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

.card__title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  margin-bottom: var(--space-xs);
}

.card__text {
  color: var(--white-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.card__badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  background: var(--gradient-pink);
  color: var(--white);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-family: var(--font-nav);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Stats Counter --- */

.stat {
  text-align: center;
  padding: var(--space-md);
  background: var(--dark-card);
  border-radius: var(--radius-md);
  border-bottom: 3px solid var(--pink);
  transition: border-color var(--duration-base) ease, box-shadow var(--duration-base) ease;
}

.stat:hover {
  border-color: var(--pink-hover);
  box-shadow: 0 4px 20px rgba(214, 77, 129, 0.2);
}

.stat__number {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: var(--pink);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.stat__label {
  font-family: var(--font-nav);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white-muted);
}

/* --- Footer --- */

.footer {
  background: var(--dark-lighter);
  padding: var(--space-xl) 0 var(--space-md);
  border-top: 2px solid var(--pink);
  position: relative;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.footer__logo img {
  height: 40px;
  border-radius: var(--radius-sm);
}

.footer__tagline {
  color: var(--white-muted);
  font-size: 0.95rem;
  max-width: 300px;
}

.footer__heading {
  font-family: var(--font-nav);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pink);
  margin-bottom: var(--space-sm);
}

.footer__link {
  display: block;
  color: var(--white-muted);
  font-size: 0.95rem;
  padding: 4px 0;
  transition: color var(--duration-fast) ease, padding-left var(--duration-fast) ease;
}

.footer__link:hover {
  color: var(--pink);
  padding-left: 8px;
}

.footer__social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--dark-card);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--duration-fast) ease, transform var(--duration-fast) ease;
}

.footer__social-link:hover {
  background: var(--pink);
  transform: scale(1.1);
}

.footer__social-link svg {
  width: 18px;
  height: 18px;
  fill: var(--white);
}

.footer__bottom {
  text-align: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--white-subtle);
  color: var(--white-muted);
  font-size: 0.85rem;
}

/* --- Section Header --- */

.section-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section-header h2 {
  margin-bottom: var(--space-xs);
}

.section-header p {
  margin: 0 auto;
  max-width: 600px;
}

/* --- Parallax Section --- */

.parallax-section {
  position: relative;
  padding: var(--space-2xl) 0;
  overflow: hidden;
}

.parallax-section__bg {
  position: absolute;
  inset: -20%;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.parallax-section__overlay {
  position: absolute;
  inset: 0;
  background: rgba(22, 22, 22, 0.75);
  z-index: 1;
}

.parallax-section__content {
  position: relative;
  z-index: 2;
}

/* --- Chatbot --- */

.chatbot-bubble {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--gradient-pink);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 900;
  transition: transform var(--duration-fast) ease;
  animation: pulseGlow 2.5s ease-in-out infinite;
}

.chatbot-bubble:hover {
  transform: scale(1.1);
}

.chatbot-bubble svg {
  width: 28px;
  height: 28px;
  fill: var(--white);
}

.chatbot-window {
  position: fixed;
  bottom: 100px;
  right: 30px;
  width: 380px;
  height: 500px;
  background: var(--dark-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--white-subtle);
  box-shadow: var(--shadow-card-hover);
  display: flex;
  flex-direction: column;
  z-index: 901;
  opacity: 0;
  transform: scale(0.9) translateY(20px);
  pointer-events: none;
  transition: all var(--duration-base) var(--ease-out-back);
  overflow: hidden;
}

.chatbot-window.active {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: all;
}

.chatbot-header {
  background: var(--gradient-pink);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chatbot-header__title {
  font-family: var(--font-nav);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
}

.chatbot-header__close {
  color: var(--white);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px;
  transition: opacity var(--duration-fast) ease;
}

.chatbot-header__close:hover {
  opacity: 0.7;
}

.chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chatbot-msg {
  max-width: 85%;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  line-height: 1.5;
  animation: fadeInUp 0.3s ease;
}

.chatbot-msg--bot {
  align-self: flex-start;
  background: var(--dark-lighter);
  color: var(--white-muted);
  border-bottom-left-radius: 4px;
}

.chatbot-msg--user {
  align-self: flex-end;
  background: var(--gradient-pink);
  color: var(--white);
  border-bottom-right-radius: 4px;
}

.chatbot-typing {
  display: flex;
  gap: 4px;
  padding: 10px 16px;
  align-self: flex-start;
}

.chatbot-typing span {
  width: 8px;
  height: 8px;
  background: var(--white-muted);
  border-radius: 50%;
  animation: float 1.4s ease-in-out infinite;
}

.chatbot-typing span:nth-child(2) { animation-delay: 0.2s; }
.chatbot-typing span:nth-child(3) { animation-delay: 0.4s; }

.chatbot-input {
  display: flex;
  padding: 12px;
  border-top: 1px solid var(--white-subtle);
  gap: 8px;
}

.chatbot-input input {
  flex: 1;
  background: var(--dark-lighter);
  border: 1px solid var(--white-subtle);
  border-radius: var(--radius-full);
  padding: 10px 16px;
  color: var(--white);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--duration-fast) ease;
}

.chatbot-input input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.chatbot-input input:focus {
  border-color: var(--pink);
}

.chatbot-input button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-pink);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--duration-fast) ease;
}

.chatbot-input button:hover {
  transform: scale(1.1);
}

.chatbot-input button svg {
  width: 18px;
  height: 18px;
  fill: var(--white);
}