/* ========================================
   RND Horizon LLC - Premium Website Styles
   HTML5 + CSS3 + Vanilla JS
   Hostinger Shared Hosting Compatible
   ======================================== */

/* ---- CSS Variables ---- */
:root {
  /* Colors */
  --color-bg: #0a0e1a;
  --color-bg-alt: #111827;
  --color-bg-card: rgba(17, 24, 39, 0.6);
  --color-bg-glass: rgba(17, 24, 39, 0.4);
  --color-border: rgba(107, 124, 142, 0.15);
  --color-border-hover: rgba(0, 212, 255, 0.3);
  --color-text: #e8ecf1;
  --color-text-muted: #9ca3af;
  --color-text-dim: #6b7c8e;
  --color-accent-cyan: #00d4ff;
  --color-accent-violet: #7c3aed;
  --color-accent-gradient: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  --color-glow: rgba(0, 212, 255, 0.15);

  /* Typography */
  --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --fs-hero-title: clamp(2.5rem, 6vw, 4.5rem);
  --fs-section-title: clamp(2rem, 4vw, 3.2rem);
  --fs-subtitle: clamp(1.1rem, 2vw, 1.35rem);
  --fs-body: clamp(1rem, 1.2vw, 1.125rem);
  --fs-small: 0.875rem;
  --fs-xs: 0.75rem;
  --fw-normal: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;
  --lh-body: 1.7;
  --lh-heading: 1.15;

  /* Spacing */
  --section-padding: clamp(5rem, 10vw, 8rem);
  --container-max: 1200px;
  --container-padding: clamp(1.5rem, 5vw, 3rem);

  /* Effects */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.1);
  --backdrop-blur: blur(20px) saturate(1.2);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-stack);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-accent-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-text);
}

button {
  cursor: pointer;
  font-family: inherit;
}

ul {
  list-style: none;
}

/* ---- Utility ---- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.text-gradient {
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Skip Link ---- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent-cyan);
  color: var(--color-bg);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-small);
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
  outline: 3px solid var(--color-text);
  outline-offset: 2px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-md);
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.02em;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
}

.btn--primary {
  background: var(--color-accent-gradient);
  color: #fff;
  border-color: transparent;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.25), 0 8px 30px rgba(124, 58, 237, 0.15);
  color: #fff;
}

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-hover);
}

.btn--secondary:hover {
  border-color: var(--color-accent-cyan);
  color: var(--color-accent-cyan);
  background: rgba(0, 212, 255, 0.05);
}

.btn--large {
  padding: 1rem 2.5rem;
  font-size: var(--fs-subtitle);
}

.btn--full {
  width: 100%;
}

/* ---- Section Base ---- */
.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section-eyebrow {
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent-cyan);
  margin-bottom: 1rem;
}

.section-title {
  font-size: var(--fs-section-title);
  font-weight: var(--fw-extrabold);
  line-height: var(--lh-heading);
  color: var(--color-text);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: var(--fs-subtitle);
  font-weight: var(--fw-medium);
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.section-description {
  font-size: var(--fs-body);
  color: var(--color-text-muted);
  max-width: 640px;
  line-height: var(--lh-body);
}

.section-header {
  margin-bottom: clamp(3rem, 6vw, 5rem);
  max-width: 720px;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: all var(--transition-base);
  background: transparent;
}

.site-header--scrolled {
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo img {
  height: 36px;
  width: auto;
  transition: opacity var(--transition-fast);
}

.logo:hover img {
  opacity: 0.85;
}

.main-nav {
  display: flex;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.nav-link:hover,
.nav-link:focus,
.nav-link.active {
  color: var(--color-text);
  background: rgba(0, 212, 255, 0.08);
}

.nav-link--cta {
  background: var(--color-accent-gradient);
  color: #fff;
  margin-left: 0.5rem;
}

.nav-link--cta:hover,
.nav-link--cta:focus {
  color: #fff;
  opacity: 0.9;
  background: var(--color-accent-gradient);
}

/* ---- Mobile Menu Toggle ---- */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  z-index: 1001;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 8rem var(--container-padding) 4rem;
}

.hero-gradient-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 30%, rgba(26, 31, 58, 0.8) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 70% 60%, rgba(124, 58, 237, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 40% 50% at 20% 70%, rgba(0, 212, 255, 0.06) 0%, transparent 50%);
  z-index: 0;
}

.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

.hero-particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--color-accent-cyan);
  border-radius: 50%;
  opacity: 0;
  animation: particle-float linear infinite;
}

@keyframes particle-float {
  0% {
    opacity: 0;
    transform: translateY(0) scale(0);
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.3;
  }
  100% {
    opacity: 0;
    transform: translateY(-100vh) scale(1);
  }
}

.hero-container {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
}

.hero-eyebrow {
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--color-accent-cyan);
  margin-bottom: 1.5rem;
}

.hero-headline {
  font-size: var(--fs-hero-title);
  font-weight: var(--fw-extrabold);
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-subheadline {
  font-size: var(--fs-subtitle);
  color: var(--color-text-muted);
  max-width: 680px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- Horizon Animation ---- */
.hero-horizon {
  position: absolute;
  bottom: 15%;
  left: 0;
  right: 0;
  height: 60px;
  z-index: 1;
  pointer-events: none;
}

.horizon-line {
  position: absolute;
  bottom: 30px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(0, 212, 255, 0.3) 15%,
    rgba(124, 58, 237, 0.5) 50%,
    rgba(0, 212, 255, 0.3) 85%,
    transparent 100%
  );
  animation: horizon-pulse 4s ease-in-out infinite;
}

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

.horizon-glow {
  position: absolute;
  bottom: 25px;
  left: 45%;
  right: 45%;
  height: 12px;
  background: radial-gradient(ellipse, rgba(0, 212, 255, 0.3) 0%, transparent 70%);
  animation: glow-pulse 4s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { transform: scaleX(1); opacity: 0.6; }
  50% { transform: scaleX(1.8); opacity: 1; }
}

.horizon-particles span {
  position: absolute;
  bottom: 28px;
  width: 3px;
  height: 3px;
  background: var(--color-accent-cyan);
  border-radius: 50%;
  animation: horizon-drift linear infinite;
}

.horizon-particles span:nth-child(1) { left: 12%; animation-duration: 8s; animation-delay: 0s; }
.horizon-particles span:nth-child(2) { left: 22%; animation-duration: 10s; animation-delay: 1s; }
.horizon-particles span:nth-child(3) { left: 35%; animation-duration: 7s; animation-delay: 2s; }
.horizon-particles span:nth-child(4) { left: 48%; animation-duration: 9s; animation-delay: 0.5s; }
.horizon-particles span:nth-child(5) { left: 58%; animation-duration: 11s; animation-delay: 3s; }
.horizon-particles span:nth-child(6) { left: 68%; animation-duration: 8s; animation-delay: 1.5s; }
.horizon-particles span:nth-child(7) { left: 78%; animation-duration: 10s; animation-delay: 2.5s; }
.horizon-particles span:nth-child(8) { left: 88%; animation-duration: 7s; animation-delay: 0s; }
.horizon-particles span:nth-child(9) { left: 42%; animation-duration: 9s; animation-delay: 4s; }
.horizon-particles span:nth-child(10) { left: 55%; animation-duration: 8s; animation-delay: 3.5s; }

@keyframes horizon-drift {
  0% { transform: translateX(0) scale(0); opacity: 0; }
  20% { transform: translateX(20px) scale(1); opacity: 0.7; }
  80% { transform: translateX(100px) scale(0.5); opacity: 0.3; }
  100% { transform: translateX(150px) scale(0); opacity: 0; }
}

/* ---- Scroll Indicator ---- */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 2;
  opacity: 0.5;
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

.scroll-mouse {
  width: 22px;
  height: 34px;
  border: 2px solid var(--color-text-dim);
  border-radius: 11px;
  position: relative;
}

.scroll-wheel {
  width: 3px;
  height: 6px;
  background: var(--color-text-dim);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: wheel-scroll 1.5s ease-in-out infinite;
}

@keyframes wheel-scroll {
  0%, 100% { opacity: 1; top: 6px; }
  50% { opacity: 0.3; top: 14px; }
}

.scroll-text {
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}


/* ========================================
   ABOUT SECTION
   ======================================== */
.about {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.pillar-card {
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3rem);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--color-accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.pillar-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

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

.pillar-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 255, 0.05);
  border-radius: var(--radius-md);
}

.pillar-title {
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.pillar-text {
  color: var(--color-text-muted);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
}

/* ========================================
   RND STUDIO SECTION
   ======================================== */
.rnd-studio {
  background: var(--color-bg);
  position: relative;
}

.rnd-studio::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.studio-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1rem, 2vw, 1.5rem);
}

.studio-card {
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.studio-card-glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(0, 212, 255, 0.06) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.studio-card:hover .studio-card-glow {
  opacity: 1;
}

.studio-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.studio-card-content {
  position: relative;
  z-index: 1;
}

.studio-card-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 255, 0.05);
  border-radius: var(--radius-md);
}

.studio-card-title {
  font-size: 1.25rem;
  font-weight: var(--fw-bold);
  color: var(--color-text);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.studio-card-text {
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  line-height: 1.7;
}

.studio-card--featured {
  border-color: rgba(0, 212, 255, 0.2);
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
}

.studio-card--featured:hover {
  border-color: var(--color-accent-cyan);
}

.studio-card-badge {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  background: var(--color-accent-gradient);
  color: #fff;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  border-radius: 20px;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.studio-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1.25rem;
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--color-accent-cyan);
  text-decoration: none;
}

.studio-card-link:hover {
  color: var(--color-text);
  gap: 0.5rem;
}

/* ========================================
   SKINMATE SECTION
   ======================================== */
.skinmate {
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
  position: relative;
  overflow: hidden;
}

.skinmate::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

.skinmate-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.skinmate-content {
  max-width: 580px;
}

.skinmate-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 1.5rem;
  margin-top: 2rem;
  list-style: none;
}

.skinmate-feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  padding: 0.4rem 0;
}

.feature-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-gradient);
  flex-shrink: 0;
}

/* ---- Phone Mockup ---- */
.phone-mockup {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.phone-frame {
  width: 280px;
  height: 560px;
  background: linear-gradient(145deg, #1a1f3a 0%, #0f172a 100%);
  border-radius: 36px;
  padding: 12px;
  box-shadow:
    0 0 0 2px rgba(0, 212, 255, 0.15),
    0 25px 60px rgba(0, 0, 0, 0.5),
    0 0 60px rgba(0, 212, 255, 0.08);
  position: relative;
}

.phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 28px;
  background: var(--color-bg-alt);
  border-radius: 0 0 18px 18px;
  z-index: 2;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, #0a0e1a 0%, #111827 100%);
  border-radius: 26px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.25rem 1.25rem;
  position: relative;
}

.phone-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-top: 0.5rem;
}

.phone-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.3) 0%, rgba(124, 58, 237, 0.3) 100%);
  border: 2px solid rgba(0, 212, 255, 0.2);
}

.phone-user-info {
  flex: 1;
}

.phone-username {
  font-size: 0.8rem;
  font-weight: var(--fw-semibold);
  color: var(--color-text);
}

.phone-level {
  font-size: 0.7rem;
  color: var(--color-text-dim);
}

.phone-score-ring {
  width: 140px;
  height: 140px;
  margin: 0 auto 1.5rem;
}

.score-svg {
  width: 100%;
  height: 100%;
}

.phone-missions {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mission-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(30, 41, 59, 0.6);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  border: 1px solid var(--color-border);
}

.mission-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.1);
  border: 2px solid rgba(0, 212, 255, 0.3);
  flex-shrink: 0;
}

.mission-icon--completed {
  background: rgba(0, 212, 255, 0.2);
  border-color: var(--color-accent-cyan);
}

.mission-info {
  flex: 1;
}

.mission-title {
  font-size: 0.8rem;
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  margin-bottom: 0.4rem;
}

.mission-progress {
  width: 100%;
}

.mission-bar {
  height: 4px;
  background: rgba(107, 124, 142, 0.2);
  border-radius: 2px;
  overflow: hidden;
}

.mission-fill {
  height: 100%;
  background: var(--color-accent-gradient);
  border-radius: 2px;
  transition: width 1s ease;
}

.phone-nav {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  padding-top: 1rem;
}

.nav-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-text-dim);
  opacity: 0.4;
}

.nav-dot.active {
  background: var(--color-accent-cyan);
  opacity: 1;
  width: 20px;
  border-radius: 3px;
}

/* Floating panels */
.float-panel {
  position: absolute;
  background: var(--color-bg-glass);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--color-border-hover);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  box-shadow: var(--shadow-glow);
  animation: float-panel 3s ease-in-out infinite;
}

@keyframes float-panel {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.float-panel--badges {
  top: 15%;
  right: -20px;
  animation-delay: 0s;
}

.float-panel--streak {
  bottom: 25%;
  left: -30px;
  text-align: center;
  animation-delay: 1.5s;
}

.badge-icons {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.badge-icon {
  font-size: 1.25rem;
}

.badge-label {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  font-weight: var(--fw-medium);
}

.streak-number {
  font-size: 1.5rem;
  font-weight: var(--fw-extrabold);
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.streak-label {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

/* ========================================
   VENTURES SECTION
   ======================================== */
.ventures {
  background: var(--color-bg-alt);
}

.ventures-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1rem, 2vw, 1.5rem);
}

.venture-card {
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.venture-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.venture-card--studio::before {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, transparent 60%);
}

.venture-card--skinmate::before {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.05) 0%, transparent 60%);
}

.venture-card--bada::before {
  background: linear-gradient(135deg, rgba(244, 114, 182, 0.05) 0%, transparent 60%);
}

.venture-card--future::before {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.03) 0%, rgba(124, 58, 237, 0.03) 100%);
}

.venture-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

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

.venture-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.venture-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.venture-icon--studio { background: rgba(0, 212, 255, 0.08); }
.venture-icon--skinmate { background: rgba(124, 58, 237, 0.08); }
.venture-icon--bada { background: rgba(244, 114, 182, 0.08); }
.venture-icon--future { background: rgba(0, 212, 255, 0.05); }

.venture-title {
  font-size: 1.15rem;
  font-weight: var(--fw-bold);
  color: var(--color-text);
}

.venture-text {
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.venture-link {
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--color-accent-cyan);
}

.venture-link:hover {
  color: var(--color-text);
}

/* ========================================
   FOUNDER SECTION
   ======================================== */
.founder {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.founder-card {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(2rem, 4vw, 3rem);
  transition: all var(--transition-base);
}

.founder-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-glow);
}

.founder-visual {
  display: flex;
  justify-content: center;
}

.founder-visual img {
  width: 280px;
  height: 280px;
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.founder-name {
  font-size: 1.75rem;
  font-weight: var(--fw-bold);
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.founder-role {
  font-size: var(--fs-body);
  color: var(--color-accent-cyan);
  font-weight: var(--fw-semibold);
  margin-bottom: 1.25rem;
}

.founder-bio {
  color: var(--color-text-muted);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  margin-bottom: 1.5rem;
}

.founder-contact {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-accent-cyan);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  padding: 0.5rem 1rem;
  background: rgba(0, 212, 255, 0.05);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.founder-contact:hover {
  border-color: var(--color-border-hover);
  background: rgba(0, 212, 255, 0.1);
}


/* ========================================
   BUILD WITH US SECTION
   ======================================== */
.build-with-us {
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}

.build-with-us::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.03) 0%, transparent 60%);
  pointer-events: none;
}

.build-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.collaboration-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 2rem 0;
}

.collab-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  color: var(--color-text-muted);
  font-size: var(--fs-body);
}

.collab-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.build-cta {
  margin-top: 1rem;
}

/* ---- Build Visual / Orbital Animation ---- */
.build-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.build-visual-inner {
  width: 360px;
  height: 360px;
  position: relative;
}

.orbit-ring {
  position: absolute;
  border: 1px solid rgba(0, 212, 255, 0.1);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.orbit-ring--1 {
  width: 100%;
  height: 100%;
  animation: orbit-rotate 30s linear infinite;
}

.orbit-ring--2 {
  width: 70%;
  height: 70%;
  animation: orbit-rotate 20s linear infinite reverse;
}

.orbit-ring--3 {
  width: 40%;
  height: 40%;
  animation: orbit-rotate 15s linear infinite;
}

@keyframes orbit-rotate {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.orbit-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 255, 0.05);
  border-radius: 50%;
  border: 1px solid rgba(0, 212, 255, 0.15);
}

.orbit-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent-gradient);
}

.orbit-dot--1 {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  animation: orbit-dot1 30s linear infinite;
}

.orbit-dot--2 {
  top: 15%;
  right: 15%;
  animation: orbit-dot2 20s linear infinite;
}

.orbit-dot--3 {
  bottom: 15%;
  left: 15%;
  animation: orbit-dot3 15s linear infinite;
}

@keyframes orbit-dot1 {
  from { transform: translateX(-50%) rotate(0deg) translateX(180px) rotate(0deg); }
  to { transform: translateX(-50%) rotate(360deg) translateX(180px) rotate(-360deg); }
}

@keyframes orbit-dot2 {
  from { transform: rotate(0deg) translateX(126px) rotate(0deg); }
  to { transform: rotate(360deg) translateX(126px) rotate(-360deg); }
}

@keyframes orbit-dot3 {
  from { transform: rotate(0deg) translateX(72px) rotate(0deg); }
  to { transform: rotate(-360deg) translateX(72px) rotate(360deg); }
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact {
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.contact-layout {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: start;
}

.contact-details {
  margin: 2rem 0;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  background: rgba(0, 212, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  transition: all var(--transition-fast);
}

.contact-email:hover {
  border-color: var(--color-border-hover);
  background: rgba(0, 212, 255, 0.1);
  color: var(--color-accent-cyan);
}

.contact-quote {
  margin-top: 2rem;
  padding: 1.5rem;
  border-left: 3px solid var(--color-accent-cyan);
  background: rgba(0, 212, 255, 0.03);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.contact-quote p {
  font-style: italic;
  color: var(--color-text-muted);
  font-size: var(--fs-subtitle);
  line-height: 1.6;
}

/* ---- Contact Form ---- */
.contact-form-wrapper {
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(2rem, 4vw, 3rem);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--color-text-muted);
}

.form-input,
.form-select,
.form-textarea {
  padding: 0.875rem 1rem;
  background: rgba(10, 14, 26, 0.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: inherit;
  font-size: var(--fs-body);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-dim);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
  background: rgba(10, 14, 26, 0.7);
}

.form-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7c8e' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-select option {
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-fallback {
  text-align: center;
  font-size: var(--fs-xs);
  color: var(--color-text-dim);
  margin-top: 0.5rem;
}

.form-fallback a {
  color: var(--color-accent-cyan);
  text-decoration: underline;
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand img {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  opacity: 0.8;
}

.footer-tagline {
  color: var(--color-text-dim);
  font-size: var(--fs-body);
  max-width: 280px;
}

.footer-heading {
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
  text-decoration: none;
}

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

.footer-email {
  color: var(--color-accent-cyan);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
}

.footer-email:hover {
  color: var(--color-text);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
  text-align: center;
  color: var(--color-text-dim);
  font-size: var(--fs-small);
}

/* ========================================
   REVEAL ANIMATIONS (IntersectionObserver)
   ======================================== */
.reveal-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  transition-delay: var(--delay, 0s);
}

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

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
  .nav-list {
    gap: 0;
  }

  .nav-link {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }

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

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

  .collaboration-list {
    grid-template-columns: 1fr 1fr;
  }

  .build-layout {
    grid-template-columns: 1fr;
  }

  .build-visual {
    display: none;
  }
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    height: 100vh;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    border-left: 1px solid var(--color-border);
    padding: 6rem 2rem 2rem;
    transition: right var(--transition-base);
    z-index: 999;
  }

  .main-nav.active {
    right: 0;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .nav-link {
    padding: 0.75rem 0;
    font-size: var(--fs-body);
    width: 100%;
    border-radius: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-link--cta {
    margin-left: 0;
    margin-top: 1rem;
    text-align: center;
    justify-content: center;
    border-radius: var(--radius-md);
    border-bottom: none;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: center;
  }

  .hero-cta-group .btn {
    width: 100%;
    max-width: 300px;
  }

  .pillars-grid {
    grid-template-columns: 1fr;
  }

  .studio-cards-grid {
    grid-template-columns: 1fr;
  }

  .skinmate-layout {
    grid-template-columns: 1fr;
  }

  .phone-mockup {
    order: -1;
  }

  .skinmate-features {
    grid-template-columns: 1fr;
  }

  .ventures-grid {
    grid-template-columns: 1fr;
  }

  .founder-card {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .founder-visual img {
    width: 200px;
    height: 200px;
    margin: 0 auto;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-tagline {
    margin: 0 auto;
  }

  .footer-links {
    align-items: center;
  }

  .hero-horizon {
    display: none;
  }

  .scroll-indicator {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero {
    padding-top: 6rem;
  }

  .hero-headline {
    font-size: 2rem;
  }

  .hero-subheadline {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .phone-frame {
    width: 240px;
    height: 480px;
  }

  .collaboration-list {
    grid-template-columns: 1fr;
  }

  .float-panel {
    display: none;
  }
}

/* ========================================
   FOCUS STATES (Accessibility)
   ======================================== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent-cyan);
  outline-offset: 2px;
}

/* ========================================
   FORM STATES
   ======================================== */
.form-input:invalid:not(:placeholder-shown),
.form-textarea:invalid:not(:placeholder-shown) {
  border-color: rgba(239, 68, 68, 0.5);
}

.form-input:valid:not(:placeholder-shown),
.form-textarea:valid:not(:placeholder-shown) {
  border-color: rgba(34, 197, 94, 0.3);
}

/* ========================================
   SELECTION
   ======================================== */
::selection {
  background: rgba(0, 212, 255, 0.3);
  color: var(--color-text);
}

/* ========================================
   SCROLLBAR
   ======================================== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-text-dim);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}