:root {
  --primary: #ff4f87;
  --primary-dark: #e53772;
  --secondary: #7c4dff;
  --dark: #161223;
  --dark-2: #221b38;
  --text: #4f4b66;
  --white: #ffffff;
  --light: #f8f6ff;
  --border: rgba(255, 255, 255, 0.15);
  --shadow: 0 15px 40px rgba(24, 15, 50, 0.12);
  --radius: 18px;
  --transition: all 0.35s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Poppins", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #fff8fb 0%, #f8f7ff 100%);
  overflow-x: hidden;
}

img {
  width: 100%;
  display: block;
}

a {
  text-decoration: none;
}

ul {
  list-style: none;
}

button,
input,
select {
  font-family: inherit;
}

.container {
  width: min(1140px, 92%);
  margin: 0 auto;
}

.section {
  padding: 100px 0;
  position: relative;
  z-index: 2;
}

.section-heading {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px;
}

.section-heading h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--dark);
  margin-bottom: 14px;
}

.section-heading p {
  font-size: 1rem;
  line-height: 1.8;
}

.section-tag {
  display: inline-block;
  padding: 8px 16px;
  background: rgba(255, 79, 135, 0.1);
  color: var(--primary);
  font-size: 0.9rem;
  border-radius: 999px;
  font-weight: 600;
  margin-bottom: 15px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 999;
  padding: 18px 0;
  transition: var(--transition);
  background: rgba(22, 18, 35, 0.86);
}

.header.scrolled {
  background: rgba(22, 18, 35, 0.86);
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-heart {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: grid;
  place-items: center;
  color: white;
  font-size: 1rem;
  animation: floatLogo 3s ease-in-out infinite;
  transition: transform 0.3s ease;
}

.logo:hover .logo-heart {
  transform: scale(1.12) rotate(-8deg);
}

.logo-text {
  font-size: 1.3rem;
  color: var(--white);
  font-weight: 700;
}

.logo-text span {
  color: #ff9fc0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav a {
  color: var(--white);
  font-weight: 500;
  position: relative;
}

.nav a::after {
  content: "";
  width: 0;
  height: 2px;
  background: var(--primary);
  position: absolute;
  left: 0;
  bottom: -5px;
  transition: var(--transition);
}

.nav a:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

.menu-toggle {
  display: none;
  border: none;
  background: none;
  color: white;
  font-size: 1.4rem;
  cursor: pointer;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  transition: var(--transition);
}

.btn-primary,
.btn-join {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 12px 28px rgba(255, 79, 135, 0.28);
}

.btn-primary:hover,
.btn-join:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 16px 34px rgba(255, 79, 135, 0.36);
}

.btn-secondary,
.btn-outline {
  background: white;
  color: var(--dark);
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.btn-secondary:hover,
.btn-outline:hover {
  transform: translateY(-3px);
  background: #fff4f8;
}

.pulse-btn {
  animation: pulse 2s infinite;
}

/* Hero */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 79, 135, 0.25), transparent 30%),
    radial-gradient(circle at 80% 20%, rgba(124, 77, 255, 0.22), transparent 25%),
    linear-gradient(135deg, #1c1331 0%, #2f1e52 45%, #5d2d77 100%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.15), rgba(0,0,0,0.25));
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-text {
  max-width: 760px;
  text-align: center;
  margin: 0 auto;
  color: white;
}

.hero-badge {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.16);
  backdrop-filter: blur(8px);
  margin-bottom: 24px;
  font-weight: 500;
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5rem);
  line-height: 1.1;
  margin-bottom: 18px;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  max-width: 700px;
  margin: 0 auto 35px;
  opacity: 0.95;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 120px;
  background: linear-gradient(to top, #fff8fb 10%, transparent);
}

.particles,
.bg-hearts {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.particle,
.heart {
  position: absolute;
  bottom: -50px;
  opacity: 0.5;
  animation: rise linear infinite;
}

.heart {
  color: rgba(255, 255, 255, 0.25);
  font-size: 18px;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 30px;
  align-items: center;
}

.about-media img {
  border-radius: 24px;
  box-shadow: var(--shadow);
  height: 100%;
  object-fit: cover;
  min-height: 450px;
}

.about-cards {
  display: grid;
  gap: 20px;
}

.about-card {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(124, 77, 255, 0.08);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.about-card:hover {
  transform: translateY(-8px);
}

.about-icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(255,79,135,.15), rgba(124,77,255,.15));
  color: var(--primary);
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.about-card h3 {
  color: var(--dark);
  margin-bottom: 8px;
}

/* Categories */
.categories {
  background: linear-gradient(180deg, #fff 0%, #f8f3ff 100%);
}

.category-group {
  margin-bottom: 40px;
}

.category-group h3 {
  color: var(--dark);
  margin-bottom: 18px;
  font-size: 1.4rem;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.category-card {
  background: white;
  padding: 28px 18px;
  border-radius: 20px;
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
}

.category-card i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 12px;
}

.category-card span {
  display: block;
  font-weight: 600;
  color: var(--dark);
}

.category-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 22px 44px rgba(124, 77, 255, 0.16);
}

/* Why Us */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.why-card {
  background: white;
  border-radius: 22px;
  padding: 28px 22px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.why-card:hover {
  transform: translateY(-10px);
}

.why-icon {
  width: 68px;
  height: 68px;
  margin: 0 auto 18px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  display: grid;
  place-items: center;
  font-size: 1.6rem;
}

.why-card h3 {
  color: var(--dark);
  margin-bottom: 10px;
  font-size: 1.1rem;
}

/* Register */
.register-box {
  max-width: 760px;
  margin: 0 auto;
  background: white;
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 36px;
}

.form-progress {
  margin-bottom: 30px;
}

.progress-line {
  height: 8px;
  background: #f0eaff;
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 16px;
}

.progress-fill {
  height: 100%;
  width: 33.33%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 999px;
  transition: var(--transition);
}

.progress-steps {
  display: flex;
  justify-content: space-between;
}

.step-dot {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #f0eaff;
  color: var(--secondary);
  font-weight: 700;
  transition: var(--transition);
}

.step-dot.active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
}

.form-step {
  display: none;
  animation: fadeUp 0.5s ease;
}

.form-step.active {
  display: block;
}

.input-group {
  margin-bottom: 20px;
}

.input-group label {
  display: block;
  margin-bottom: 8px;
  color: var(--dark);
  font-weight: 600;
}

.input-group input,
.input-group select {
  width: 100%;
  padding: 15px 16px;
  border-radius: 14px;
  border: 1.6px solid #e7defd;
  outline: none;
  background: #fbfaff;
  transition: var(--transition);
  font-size: 0.98rem;
}

.input-group input:focus,
.input-group select:focus {
  border-color: var(--primary);
  background: white;
  box-shadow: 0 0 0 4px rgba(255, 79, 135, 0.10);
}

.input-group.error input,
.input-group.error select {
  border-color: #ff4d6d;
  animation: shake 0.28s ease-in-out;
}

.form-buttons {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 8px;
}

.loading-btn {
  position: relative;
  min-width: 190px;
}

.loading-btn.loading .btn-text {
  opacity: 0;
}

.btn-loader {
  width: 22px;
  height: 22px;
  border: 3px solid rgba(255,255,255,0.35);
  border-top: 3px solid white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: none;
  position: absolute;
}

.loading-btn.loading .btn-loader {
  display: block;
}

/* Testimonials */
.testimonials {
  background: linear-gradient(180deg, #fff7fb 0%, #f7f4ff 100%);
  overflow: hidden;
}

.testimonial-slider {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  padding: 0 60px;
}

.testimonial-track {
  position: relative;
  min-height: 320px;
}

.testimonial-card {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(20px) scale(0.98);
  transition: 0.5s ease;
  background: rgba(255,255,255,0.95);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 40px;
  text-align: center;
}

.testimonial-card.active {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.testimonial-card img {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 20px;
  border: 4px solid #ffe0ec;
}

.testimonial-card p {
  font-size: 1.08rem;
  color: var(--dark-2);
  line-height: 1.8;
  margin-bottom: 16px;
}

.testimonial-card h4 {
  color: var(--primary);
}

.slider-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  box-shadow: var(--shadow);
}

.slider-btn.prev {
  left: 0;
}

.slider-btn.next {
  right: 0;
}

/* Footer */
.footer {
  background: #140f23;
  color: rgba(255,255,255,0.8);
  padding-top: 70px;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.7fr 0.8fr 1fr;
  gap: 32px;
}

.footer-logo {
  margin-bottom: 14px;
}

.footer p {
  line-height: 1.8;
}

.footer h4 {
  color: white;
  margin-bottom: 18px;
}

.footer-links ul {
  display: grid;
  gap: 12px;
}

.footer-links a {
  color: rgba(255,255,255,0.8);
  transition: var(--transition);
}

.footer-links a:hover {
  color: #ff9fc0;
}

.social-icons {
  display: flex;
  gap: 12px;
  margin-top: 18px;
}

.social-icons a {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: white;
  background: rgba(255,255,255,0.08);
  transition: var(--transition);
}

.social-icons a:hover {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transform: translateY(-3px);
}

.newsletter form {
  display: grid;
  gap: 12px;
}

.input-group.small {
  margin-bottom: 0;
}

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  line-height: 1.5;
}

.checkbox input {
  margin-top: 4px;
}

.newsletter-btn {
  width: fit-content;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 45px;
  text-align: center;
  padding: 20px 0;
  font-size: 0.95rem;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(16, 11, 27, 0.68);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 1100;
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background: white;
  width: min(760px, 100%);
  border-radius: 22px;
  padding: 28px;
  position: relative;
  transform: translateY(30px);
  transition: var(--transition);
}

.modal.active .modal-box {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  border: none;
  background: #f5efff;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-box h3 {
  color: var(--dark);
  margin-bottom: 16px;
}

.modal-content {
  max-height: 380px;
  overflow-y: auto;
  padding-right: 8px;
  line-height: 1.8;
}

.modal-content p {
  margin-bottom: 14px;
}

/* Toast */
.toast {
  position: fixed;
  right: 20px;
  top: 90px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 16px 20px;
  border-radius: 14px;
  box-shadow: var(--shadow);
  z-index: 1200;
  transform: translateX(150%);
  transition: var(--transition);
  max-width: 360px;
  font-weight: 500;
}

.toast.show {
  transform: translateX(0);
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: 0.7s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.slide-left { transform: translateX(-40px); }
.slide-right { transform: translateX(40px); }
.slide-top { transform: translateY(-40px); }
.slide-bottom { transform: translateY(40px); }

.reveal.active.slide-left,
.reveal.active.slide-right,
.reveal.active.slide-top,
.reveal.active.slide-bottom {
  transform: translate(0, 0);
}

/* Animations */
@keyframes rise {
  0% {
    transform: translateY(0) scale(0.8);
    opacity: 0;
  }
  10% { opacity: 0.45; }
  100% {
    transform: translateY(-115vh) scale(1.2);
    opacity: 0;
  }
}

@keyframes floatLogo {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 79, 135, 0.45); }
  70% { box-shadow: 0 0 0 18px rgba(255, 79, 135, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 79, 135, 0); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

/* Responsive */
@media (max-width: 992px) {
  .about-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .category-grid,
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nav {
    position: absolute;
    top: 82px;
    left: 4%;
    right: 4%;
    background: rgba(22, 18, 35, 0.98);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 20px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
  }

  .nav.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .nav-actions .btn-join {
    display: none;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }

  .hero-buttons,
  .form-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .category-grid,
  .why-grid {
    grid-template-columns: 1fr;
  }

  .register-box {
    padding: 24px;
  }

  .testimonial-slider {
    padding: 0;
  }

  .slider-btn {
    display: none;
  }

  .testimonial-card {
    position: relative;
    display: none;
    min-height: auto;
  }

  .testimonial-card.active {
    display: block;
  }

  .testimonial-track {
    min-height: auto;
  }
}