/* ========================================
   Beat Stream — Global Live Electronic Music
   ======================================== */

/* CSS Variables */
:root {
  --color-cyan: #00F2FF;
  --color-cyan-hover: #33F5FF;
  --color-cyan-dim: rgba(0, 242, 255, 0.1);
  --color-midnight: #0A1128;
  --color-midnight-light: #0F1D3D;
  --color-cobalt: #1E3A8A;
  --color-white: #FFFFFF;
  --color-gray-50: #F8FAFC;
  --color-gray-100: #F1F5F9;
  --color-gray-400: #94A3B8;
  --color-gray-500: #64748B;
  --color-gray-600: #475569;
  --color-gray-900: #0A1128;

  --font-header: 'Montserrat', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;

  --transition-micro: 150ms ease-out;
  --transition-standard: 250ms ease-in-out;
  --transition-emphasis: 500ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-hover: 300ms cubic-bezier(0.32, 0.72, 0, 1);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  color: var(--color-midnight);
  background: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-10);
  }
}

/* ========================================
   Typography
   ======================================== */

.overline {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-cyan);
  margin-bottom: var(--space-4);
}

.overline.light {
  color: var(--color-cyan);
}

.section-title {
  font-family: var(--font-header);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--color-midnight);
  margin-bottom: var(--space-4);
}

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

.section-subtitle {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-600);
  max-width: 560px;
}

.section-subtitle.light {
  color: var(--color-gray-400);
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-cobalt) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  transition: all var(--transition-hover);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--color-cyan);
  color: var(--color-midnight);
}

.btn-primary:hover {
  background: var(--color-cyan-hover);
  transform: scale(1.02);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-ghost {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-large {
  padding: var(--space-4) var(--space-8);
  font-size: 16px;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(10, 17, 40, 0.1);
  transition: transform var(--transition-hover);
}

.btn:hover .btn-icon {
  transform: translateX(2px);
}

/* ========================================
   Navbar
   ======================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-4) var(--space-6);
  transition: all var(--transition-standard);
}

.navbar.scrolled {
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.navbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-standard);
}

.navbar.scrolled .navbar-inner {
  background: rgba(10, 17, 40, 0.85);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

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

.logo-img {
  height: 36px;
  width: auto;
  flex-shrink: 0;
  display: block;
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-micro);
}

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

.nav-links .nav-cta {
  background: var(--color-cyan);
  color: var(--color-midnight);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  font-weight: 600;
}

.nav-links .nav-cta:hover {
  background: var(--color-cyan-hover);
}

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-standard);
}

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

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

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

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(10, 17, 40, 0.95);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-standard);
}

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

.mobile-menu-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
}

.mobile-menu-links a {
  font-family: var(--font-header);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-white);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-emphasis);
}

.mobile-menu.active .mobile-menu-links a {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.active .mobile-menu-links a:nth-child(1) { transition-delay: 100ms; }
.mobile-menu.active .mobile-menu-links a:nth-child(2) { transition-delay: 150ms; }
.mobile-menu.active .mobile-menu-links a:nth-child(3) { transition-delay: 200ms; }
.mobile-menu.active .mobile-menu-links a:nth-child(4) { transition-delay: 250ms; }

.mobile-menu-links .mobile-cta {
  background: var(--color-cyan);
  color: var(--color-midnight);
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-full);
  font-size: 18px;
}

@media (min-width: 768px) {
  .hamburger {
    display: none;
  }
  .nav-links {
    display: flex;
  }
  .mobile-menu {
    display: none;
  }
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-midnight);
  overflow: hidden;
  padding: var(--space-24) var(--space-6);
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-midnight) 0%, var(--color-cobalt) 50%, var(--color-midnight) 100%);
  opacity: 0.6;
  animation: gradientShift 8s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 242, 255, 0.15) 0%, transparent 70%);
  animation: glowPulse 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.2); }
}

.visualizer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.3;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  background: rgba(0, 242, 255, 0.1);
  border: 1px solid rgba(0, 242, 255, 0.2);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-cyan);
  margin-bottom: var(--space-8);
  backdrop-filter: blur(10px);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-cyan);
  border-radius: 50%;
  animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-family: var(--font-header);
  font-size: clamp(40px, 9vw, 72px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
  max-width: 540px;
  margin: 0 auto var(--space-10);
}

.hero-ctas {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-16);
}

@media (min-width: 640px) {
  .hero-ctas {
    flex-direction: row;
    justify-content: center;
  }
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-10);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-cyan), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}

/* ========================================
   Music Section
   ======================================== */

.music {
  position: relative;
  padding: var(--space-32) 0;
  background: var(--color-midnight);
  overflow: hidden;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.music .video-bg video.loaded {
  opacity: 0.4;
}

.music .video-overlay {
  background: linear-gradient(180deg, rgba(10, 17, 40, 0.85) 0%, rgba(10, 17, 40, 0.6) 50%, rgba(10, 17, 40, 0.85) 100%);
}

.music .container {
  position: relative;
  z-index: 10;
}

.music-visualizer {
  max-width: 900px;
  margin: 0 auto var(--space-12);
  padding: var(--space-8) 0;
}

.music-visualizer canvas {
  width: 100%;
  height: auto;
  max-height: 200px;
}

.music-tagline {
  text-align: center;
  font-family: var(--font-body);
  font-size: 18px;
  color: rgba(255, 255, 255, 0.7);
  max-width: 480px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.video-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}

.video-bg video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.video-bg video.loaded {
  opacity: 0.6;
}

.video-bg .video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 17, 40, 0.7) 0%, rgba(10, 17, 40, 0.5) 50%, rgba(10, 17, 40, 0.7) 100%);
  z-index: 2;
  pointer-events: none;
}

@supports not (object-fit: cover) {
  .video-bg video {
    display: none;
  }
}

/* ========================================
   Experience Section
   ======================================== */

.experience {
  position: relative;
  padding: var(--space-32) 0;
  background: var(--color-midnight);
  overflow: hidden;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.experience .video-bg video.loaded {
  opacity: 0.35;
}

.experience .video-overlay {
  background: linear-gradient(135deg, rgba(10, 17, 40, 0.8) 0%, rgba(10, 17, 40, 0.5) 50%, rgba(10, 17, 40, 0.8) 100%);
}

.experience .container {
  position: relative;
  z-index: 10;
}

.experience-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  max-width: 1000px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .experience-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.experience-card {
  position: relative;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 242, 255, 0.15);
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  text-align: center;
  transition: all var(--transition-hover);
  overflow: hidden;
}

.experience-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(0, 242, 255, 0.1) 0%, transparent 50%, rgba(30, 58, 138, 0.1) 100%);
  opacity: 0;
  transition: opacity var(--transition-hover);
  pointer-events: none;
}

.experience-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 242, 255, 0.4);
  box-shadow: 0 20px 60px rgba(0, 242, 255, 0.15), 0 0 40px rgba(0, 242, 255, 0.05);
}

.experience-card:hover::before {
  opacity: 1;
}

.experience-icon {
  position: relative;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 242, 255, 0.1);
  border: 1px solid rgba(0, 242, 255, 0.2);
  border-radius: var(--radius-lg);
  margin: 0 auto var(--space-6);
  transition: all var(--transition-hover);
}

.experience-card:hover .experience-icon {
  background: rgba(0, 242, 255, 0.15);
  border-color: rgba(0, 242, 255, 0.4);
  box-shadow: 0 0 30px rgba(0, 242, 255, 0.2);
  transform: scale(1.05);
}

.experience-card h3 {
  position: relative;
  font-family: var(--font-header);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.experience-card p {
  position: relative;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-gray-400);
}

/* ========================================
   CTA Section
   ======================================== */

.cta {
  position: relative;
  padding: var(--space-32) 0;
  background: var(--color-midnight);
  overflow: hidden;
  text-align: center;
}

.cta-gradient {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(0, 242, 255, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 10;
  max-width: 640px;
  margin: 0 auto;
}

.cta-title {
  font-family: var(--font-header);
  font-size: clamp(32px, 6vw, 48px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: var(--space-6);
}

.cta-subtitle {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-10);
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

@media (min-width: 640px) {
  .cta-buttons {
    flex-direction: row;
    justify-content: center;
  }
}

.cta-email {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-gray-400);
}

.cta-email a {
  color: var(--color-cyan);
  transition: color var(--transition-micro);
}

.cta-email a:hover {
  color: var(--color-cyan-hover);
}

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

.footer {
  padding: var(--space-16) 0 var(--space-8);
  background: var(--color-midnight);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 2fr;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-6);
  margin-bottom: var(--space-4);
}

.logo-img-footer {
  height: auto;
  width: auto;
  max-width: 160px;
  max-height: 56px;
  display: block;
}

.footer-tagline {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-gray-400);
  max-width: 240px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

@media (min-width: 640px) {
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

.footer-column h4 {
  font-family: var(--font-header);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-white);
  margin-bottom: var(--space-5);
}

.footer-column a {
  display: block;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-gray-400);
  margin-bottom: var(--space-3);
  transition: color var(--transition-micro);
}

.footer-column a:hover {
  color: var(--color-cyan);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-bottom p {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--color-gray-500);
}

/* ========================================
   Scroll Reveal Animations
   ======================================== */

.scroll-reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--transition-emphasis), transform var(--transition-emphasis);
}

.scroll-reveal.js-hidden {
  opacity: 0;
  transform: translateY(24px);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for groups */
.scroll-reveal:nth-child(1) { transition-delay: 0ms; }
.scroll-reveal:nth-child(2) { transition-delay: 100ms; }
.scroll-reveal:nth-child(3) { transition-delay: 200ms; }
.scroll-reveal:nth-child(4) { transition-delay: 300ms; }
.scroll-reveal:nth-child(5) { transition-delay: 400ms; }
.scroll-reveal:nth-child(6) { transition-delay: 500ms; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .scroll-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  
  .hero-gradient,
  .hero-glow,
  .record,
  .tonearm,
  .eq-bar span,
  .pulse-center,
  .badge-dot,
  .scroll-line {
    animation: none;
  }
  
  html {
    scroll-behavior: auto;
  }
}