/* ============================================
   NEXUS BY AC - Dance Studio Website
   ============================================ */

/* CSS Variables */
:root {
  --color-black: #1a1a1a;
  --color-dark: #2d2d2d;
  --color-gray: #6b6b6b;
  --color-light-gray: #e5e5e5;
  --color-cream: #f5f3f0;
  --color-white: #ffffff;
  --color-accent: #c9a962;
  --color-accent-dark: #b8953f;
  --color-blue: #4a90d9;
  
  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'Outfit', sans-serif;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.16);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-dark);
  background-color: var(--color-cream);
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(10px);
  transition: var(--transition);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.nav-logo img {
  height: 40px;
  width: auto;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: var(--transition);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--color-white);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--color-accent);
}

.nav-cta {
  background: var(--color-accent);
  color: var(--color-black) !important;
  padding: 0.75rem 1.75rem;
  border-radius: 4px;
  font-size: 1.1rem;
}

.nav-cta:hover {
  background: var(--color-accent-dark) !important;
  color: var(--color-black) !important;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  width: 100%;
  max-width: 100%;
}

.video-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}

.video-container iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
}

@media (min-aspect-ratio: 16/9) {
  .video-container iframe {
    width: 100%;
    height: auto;
  }
}

@media (max-aspect-ratio: 16/9) {
  .video-container iframe {
    width: auto;
    height: 100%;
  }
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.6) 0%,
    rgba(0, 0, 0, 0.4) 50%,
    rgba(0, 0, 0, 0.7) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  color: var(--color-white);
  padding: 2rem;
}

.hero-logo {
  max-width: 350px;
  margin: 0 auto 1.5rem;
  /* Makes white/light background transparent - logo shows on dark video */
  mix-blend-mode: lighten;
  filter: brightness(1.1);
}

.hero-tagline {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 300;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-btn {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-black);
  padding: 1rem 2.5rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 2px;
  border-radius: 4px;
  transition: var(--transition);
}

.hero-btn:hover {
  background: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-white);
  opacity: 0.7;
  animation: bounce 2s infinite;
}

.scroll-indicator span {
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--color-white);
  border-bottom: 2px solid var(--color-white);
  transform: rotate(45deg);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  padding: 5rem 0;
  overflow-x: hidden;
  width: 100%;
  max-width: 100%;
}

.section-title {
  font-family: var(--font-display);
  font-size: 3rem;
  letter-spacing: 4px;
  text-align: center;
  margin-bottom: 0.5rem;
  color: var(--color-black);
}

.section-subtitle {
  text-align: center;
  color: var(--color-gray);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

/* ============================================
   CLASSES SECTION
   ============================================ */
.classes {
  background: var(--color-white);
}

.classes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.class-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  cursor: pointer;
  aspect-ratio: 3/4;
}

.class-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.class-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.class-card:hover img {
  transform: scale(1.05);
}

.classes-cta {
  text-align: center;
}

/* ============================================
   STUDIO SECTION
   ============================================ */
.studio {
  background: var(--color-cream);
}

.studio-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.studio-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  aspect-ratio: 4/3;
}

.studio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.studio-image:hover img {
  transform: scale(1.05);
}

/* ============================================
   RENTAL SECTION
   ============================================ */
.rental {
  background: var(--color-black);
  color: var(--color-white);
}

.rental .section-title {
  color: var(--color-white);
}

.rental .section-subtitle {
  color: var(--color-light-gray);
}

.rental-content {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
}

.rental-image {
  max-width: 500px;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
}

.rental-cta {
  text-align: center;
}

/* ============================================
   LOCATION SECTION
   ============================================ */
.location {
  background: var(--color-white);
}

.location-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: start;
}

.location-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.location-address {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.location-address svg {
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 4px;
}

.location-address h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

.location-address p {
  color: var(--color-gray);
  line-height: 1.8;
}

.map-container {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.map-container iframe {
  display: block;
}

/* ============================================
   REGISTRATION SECTION
   ============================================ */
.register {
  background: linear-gradient(135deg, var(--color-cream) 0%, #e8e4dd 100%);
}

.register-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: start;
}

.payment-info {
  background: var(--color-white);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  text-align: center;
  position: sticky;
  top: 100px;
}

.payment-info h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 2px;
  margin-bottom: 1.5rem;
  color: var(--color-blue);
}

.qr-code {
  max-width: 280px;
  margin: 0 auto 1rem;
  border-radius: 12px;
}

.payment-note {
  font-size: 0.9rem;
  color: var(--color-gray);
}

.registration-form {
  background: var(--color-white);
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-dark);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--color-light-gray);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition);
  background: var(--color-white);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201, 169, 98, 0.15);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.file-upload {
  position: relative;
}

.file-upload input[type="file"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.file-upload-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 2rem;
  border: 2px dashed var(--color-light-gray);
  border-radius: 8px;
  color: var(--color-gray);
  transition: var(--transition);
}

.file-upload:hover .file-upload-label {
  border-color: var(--color-accent);
  background: rgba(201, 169, 98, 0.05);
}

.file-preview {
  margin-top: 1rem;
}

.file-preview img {
  max-width: 200px;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 2px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-black);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-dark);
  border: 2px solid var(--color-dark);
}

.btn-secondary:hover {
  background: var(--color-dark);
  color: var(--color-white);
}

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

.btn-outline:hover {
  background: var(--color-accent);
  color: var(--color-black);
}

.btn-full {
  width: 100%;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: 3rem 0;
  overflow-x: hidden;
  width: 100%;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer-logo {
  height: 60px;
  border-radius: 8px;
  background: var(--color-white);
  padding: 8px 12px;
}

.footer-social {
  display: flex;
  gap: 1.5rem;
}

.footer-social a {
  color: var(--color-white);
  transition: var(--transition);
}

.footer-social a:hover {
  color: var(--color-accent);
  transform: translateY(-2px);
}

.footer-copy {
  font-size: 0.875rem;
  opacity: 0.7;
}

/* ============================================
   MODAL
   ============================================ */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--color-white);
  border-radius: 16px;
  max-width: 400px;
  width: 100%;
  position: relative;
  animation: modalSlide 0.3s ease-out;
}

@keyframes modalSlide {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-gray);
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--color-black);
}

.modal-body {
  padding: 3rem 2rem;
  text-align: center;
}

.modal-icon {
  color: #22c55e;
  margin-bottom: 1.5rem;
}

.modal-body h3 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.modal-body p {
  color: var(--color-gray);
  margin-bottom: 1.5rem;
}

/* ============================================
   LIGHTBOX WITH GALLERY NAVIGATION
   ============================================ */
.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.lightbox.active {
  display: flex;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 2.5rem;
  color: var(--color-white);
  cursor: pointer;
  transition: var(--transition);
  z-index: 10;
  line-height: 1;
  padding: 0.5rem;
}

.lightbox-close:hover {
  color: var(--color-accent);
}

.lightbox-content {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 4rem 5rem;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 8px;
  user-select: none;
}

/* Navigation Buttons */
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--color-white);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.lightbox-nav:hover {
  background: var(--color-accent);
  color: var(--color-black);
}

.lightbox-prev {
  left: 1rem;
}

.lightbox-next {
  right: 1rem;
}

/* Counter */
.lightbox-counter {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-white);
  font-size: 0.9rem;
  background: rgba(0, 0, 0, 0.5);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 500;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .lightbox-content {
    padding: 3.5rem 1rem;
  }

  .lightbox-nav {
    width: 40px;
    height: 40px;
  }

  .lightbox-nav svg {
    width: 24px;
    height: 24px;
  }

  .lightbox-prev {
    left: 0.5rem;
  }

  .lightbox-next {
    right: 0.5rem;
  }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  .location-content {
    grid-template-columns: 1fr;
  }
  
  .register-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .payment-info {
    position: static;
  }
}

@media (max-width: 768px) {
  /* Navigation */
  .nav-toggle {
    display: flex;
    z-index: 1001;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--color-black);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    padding: 2rem;
    transition: var(--transition);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
  
  /* Hero */
  .hero-logo {
    max-width: 250px;
  }
  
  .hero-tagline {
    font-size: 1rem;
    letter-spacing: 2px;
  }
  
  /* Sections */
  .section {
    padding: 3rem 0;
  }
  
  .section-title {
    font-size: 2.25rem;
  }
  
  /* Classes */
  .classes-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }
  
  /* Form */
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .registration-form {
    padding: 1.5rem;
  }
  
  .payment-info {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .navbar {
    padding: 0.75rem 1rem;
  }
  
  .nav-logo img {
    height: 32px;
  }
  
  .hero-logo {
    max-width: 200px;
  }
  
  .hero-btn {
    padding: 0.875rem 2rem;
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 1.875rem;
  }
  
  .btn {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
  }
  
  .classes-grid {
    grid-template-columns: 1fr;
  }
  
  .studio-gallery {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   LOADING STATE
   ============================================ */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}

.loading::after {
  content: '';
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-light-gray);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ============================================
   UTILITIES
   ============================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}