/* ============================================
   3D Portfolio Adventure - Christian Cangussu
   Cosmic Dark Theme with Glassmorphism
   ============================================ */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap");

/* ---- CSS Variables ---- */
:root {
  --bg-deep: #030014;
  --bg-dark: #0a0a1a;
  --bg-card: rgba(15, 15, 40, 0.6);
  --glass: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-hover: rgba(255, 255, 255, 0.06);

  --purple-400: #c084fc;
  --purple-500: #a855f7;
  --purple-600: #9333ea;
  --cyan-400: #22d3ee;
  --cyan-500: #06b6d4;
  --gold-400: #fbbf24;
  --gold-500: #f59e0b;
  --pink-500: #ec4899;
  --green-400: #4ade80;

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --font-display: "Outfit", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  overflow: hidden;
  width: 100vw;
  height: 100vh;
  cursor: default;
}

::selection {
  background: var(--purple-500);
  color: white;
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--purple-600);
  border-radius: 3px;
}

/* ---- Canvas ---- */
#canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* ---- Loading Screen ---- */
#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-deep);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

#loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-logo {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--purple-400), var(--cyan-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  animation: pulse-glow 2s ease-in-out infinite;
}

.loading-text {
  font-family: var(--font-body);
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2.5rem;
  letter-spacing: 0.05em;
}

.loading-bar-container {
  width: 280px;
  height: 3px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  overflow: hidden;
}

.loading-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--purple-500), var(--cyan-400));
  border-radius: 4px;
  transition: width 0.3s ease;
}

.loading-particles {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.loading-particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--purple-400);
  border-radius: 50%;
  animation: float-up 3s ease-in-out infinite;
}

@keyframes float-up {
  0% {
    transform: translateY(100vh) scale(0);
    opacity: 0;
  }

  50% {
    opacity: 1;
  }

  100% {
    transform: translateY(-10vh) scale(1);
    opacity: 0;
  }
}

@keyframes pulse-glow {

  0%,
  100% {
    filter: brightness(1);
  }

  50% {
    filter: brightness(1.3);
  }
}

/* ---- Top Bar ---- */
#top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 2rem;
  pointer-events: none;
}

#top-bar>* {
  pointer-events: auto;
}

.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  background: linear-gradient(135deg, var(--purple-400), var(--cyan-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
  cursor: pointer;
  transition: var(--transition-fast);
}

.logo:hover {
  filter: brightness(1.2);
  transform: scale(1.02);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

/* ---- Language Toggle ---- */
#lang-toggle {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
  backdrop-filter: blur(12px);
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

#lang-toggle:hover {
  background: var(--glass-hover);
  border-color: var(--purple-500);
  box-shadow: 0 0 20px rgba(168, 85, 247, 0.15);
  transform: translateY(-1px);
}

/* ---- Navigation Dots ---- */
#nav-dots {
  position: fixed;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.nav-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
}

.nav-dot:hover {
  background: var(--purple-400);
  transform: scale(1.4);
  box-shadow: 0 0 15px rgba(168, 85, 247, 0.5);
}

.nav-dot.active {
  background: var(--cyan-400);
  transform: scale(1.3);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
  border-color: var(--cyan-400);
}

.nav-dot .tooltip {
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(10, 10, 30, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-fast);
  color: var(--text-secondary);
}

.nav-dot:hover .tooltip {
  opacity: 1;
}

/* ---- Hint Text ---- */
#hint-text {
  position: fixed;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: fade-pulse 3s ease-in-out infinite;
  pointer-events: none;
}

@keyframes fade-pulse {

  0%,
  100% {
    opacity: 0.4;
  }

  50% {
    opacity: 0.8;
  }
}

/* ---- Content Panel (Glassmorphism) ---- */
#content-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s ease;
}

#content-panel.visible {
  pointer-events: auto;
  opacity: 1;
}

#content-panel .backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(3, 0, 20, 0.5);
  backdrop-filter: blur(4px);
}

.panel-inner {
  position: relative;
  width: 90%;
  max-width: 900px;
  max-height: 80vh;
  background: rgba(10, 10, 35, 0.85);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 3rem;
  overflow-y: auto;
  transform: translateY(30px) scale(0.95);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.5s ease;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5),
    0 0 60px rgba(168, 85, 247, 0.05), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

#content-panel.visible .panel-inner {
  transform: translateY(0) scale(1);
}

.panel-close {
  position: absolute;
  top: 1.2rem;
  right: 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition-fast);
}

.panel-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  transform: rotate(90deg);
}

#back-btn {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  background: rgba(10, 10, 35, 0.8);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 0.7rem 1.5rem;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition-smooth);
  opacity: 0;
  pointer-events: none;
  letter-spacing: 0.02em;
}

#back-btn.visible {
  opacity: 1;
  pointer-events: auto;
}

#back-btn:hover {
  background: rgba(168, 85, 247, 0.15);
  border-color: var(--purple-500);
  color: var(--text-primary);
  transform: translateX(-50%) translateY(-2px);
}

/* ---- Panel Content Styles ---- */
.section-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--purple-400), var(--cyan-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.3rem;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-weight: 400;
}

.section-text {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
}

.section-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ---- Home Content ---- */
.home-content {
  text-align: center;
  padding: 1rem 0;
}

.home-greeting {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--cyan-400);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.home-name {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  background: linear-gradient(135deg,
      var(--purple-400),
      var(--cyan-400),
      var(--gold-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  line-height: 1.1;
}

.home-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.home-subtitle {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.home-cta {
  display: inline-block;
  background: linear-gradient(135deg, var(--purple-600), var(--cyan-500));
  color: white;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.9rem 2.2rem;
  border-radius: 14px;
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  letter-spacing: 0.02em;
  margin-bottom: 2rem;
}

.home-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(168, 85, 247, 0.3);
  filter: brightness(1.1);
}

.home-tagline {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--text-muted);
  opacity: 0.7;
}

/* ---- About Content ---- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.about-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 1.5rem;
  transition: var(--transition-smooth);
}

.about-card:hover {
  background: var(--glass-hover);
  border-color: rgba(168, 85, 247, 0.2);
}

.about-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--purple-400);
  margin-bottom: 0.8rem;
}

.about-card p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.about-details {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1rem;
}

.about-badge {
  background: rgba(168, 85, 247, 0.1);
  border: 1px solid rgba(168, 85, 247, 0.2);
  padding: 0.4rem 0.9rem;
  border-radius: 8px;
  font-size: 0.82rem;
  color: var(--purple-400);
  font-weight: 500;
}

/* ---- Skills Content ---- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.skill-category {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 1.2rem 1.4rem;
  transition: var(--transition-smooth);
}

.skill-category:hover {
  background: var(--glass-hover);
  transform: translateY(-2px);
  border-color: rgba(34, 211, 238, 0.2);
}

.skill-category-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--cyan-400);
  margin-bottom: 0.6rem;
}

.skill-list {
  list-style: none;
}

.skill-list li {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 0.2rem 0;
  padding-left: 1rem;
  position: relative;
}

.skill-list li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--purple-400);
  font-weight: 700;
}

/* ---- Projects Content ---- */
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.project-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 1.8rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--project-color, var(--purple-500));
  border-radius: 16px 16px 0 0;
}

.project-card:hover {
  background: var(--glass-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.project-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.8rem;
}

.project-emoji {
  font-size: 1.8rem;
}

.project-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
}

.project-desc {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.project-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.project-stack,
.project-result {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.project-stack span,
.project-result span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan-400);
  font-weight: 600;
  margin-right: 0.5rem;
}

/* ---- Services Content ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.service-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 1.5rem;
  transition: var(--transition-smooth);
  text-align: center;
}

.service-card:hover {
  background: var(--glass-hover);
  transform: translateY(-3px);
  border-color: rgba(245, 158, 11, 0.2);
}

.service-icon {
  font-size: 2rem;
  margin-bottom: 0.6rem;
}

.service-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 0.7rem;
}

.service-features {
  list-style: none;
  margin-bottom: 1rem;
}

.service-features li {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 0.15rem 0;
}

.service-price {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gold-400);
}

/* ---- Vision Content ---- */
.vision-content {
  text-align: center;
}

.vision-block {
  margin-bottom: 2rem;
}

.vision-block h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--purple-400);
  margin-bottom: 0.8rem;
}

.vision-block p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

.vision-goldengate {
  background: linear-gradient(135deg,
      rgba(168, 85, 247, 0.08),
      rgba(245, 158, 11, 0.08));
  border: 1px solid rgba(245, 158, 11, 0.15);
  border-radius: 16px;
  padding: 2rem;
  margin: 1.5rem 0;
}

.vision-goldengate h3 {
  background: linear-gradient(135deg, var(--gold-400), var(--purple-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.vision-quote {
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  padding: 1.5rem;
  border-left: 3px solid var(--purple-500);
  margin-top: 1.5rem;
  text-align: left;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ---- Contact Content ---- */
.contact-content {
  text-align: center;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 400px;
  margin: 2rem auto;
}

.contact-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  padding: 1rem 1.5rem;
  border-radius: 14px;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition-smooth);
  font-size: 1rem;
}

.contact-link:hover {
  background: var(--glass-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.contact-link.calendly {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(34, 211, 238, 0.15));
  border-color: rgba(168, 85, 247, 0.3);
}

.contact-link.calendly:hover {
  border-color: var(--purple-400);
  box-shadow: 0 10px 30px rgba(168, 85, 247, 0.2);
}

.contact-cta {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-top: 1.5rem;
  font-style: italic;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .panel-inner {
    width: 95%;
    padding: 2rem 1.5rem;
    max-height: 85vh;
    border-radius: 16px;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .home-name {
    font-size: 2.2rem;
  }

  .home-title {
    font-size: 1.2rem;
  }

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

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

  #nav-dots {
    right: 0.8rem;
    gap: 0.7rem;
  }

  .nav-dot .tooltip {
    display: none;
  }

  #top-bar {
    padding: 0.8rem 1rem;
  }

  .logo {
    font-size: 1.1rem;
  }

  .home-subtitle {
    font-size: 0.92rem;
  }

  .project-card {
    padding: 1.3rem;
  }
}

@media (max-width: 480px) {
  .home-name {
    font-size: 1.8rem;
  }

  .section-title {
    font-size: 1.4rem;
  }

  .panel-inner {
    padding: 1.5rem 1rem;
  }
}

/* ---- Animations ---- */
@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: slide-up 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-in:nth-child(1) {
  animation-delay: 0.05s;
}

.animate-in:nth-child(2) {
  animation-delay: 0.1s;
}

.animate-in:nth-child(3) {
  animation-delay: 0.15s;
}

.animate-in:nth-child(4) {
  animation-delay: 0.2s;
}

.animate-in:nth-child(5) {
  animation-delay: 0.25s;
}

.animate-in:nth-child(6) {
  animation-delay: 0.3s;
}

.animate-in:nth-child(7) {
  animation-delay: 0.35s;
}

.animate-in:nth-child(8) {
  animation-delay: 0.4s;
}

/* ---- Flow CTA (story connection) ---- */
.flow-cta-container {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--glass-border);
}

.flow-cta {
  display: inline-block;
  background: transparent;
  border: 1px solid rgba(168, 85, 247, 0.3);
  color: var(--purple-400);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.8rem 2rem;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition-smooth);
  letter-spacing: 0.02em;
}

.flow-cta:hover {
  background: rgba(168, 85, 247, 0.1);
  border-color: var(--purple-400);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(168, 85, 247, 0.15);
}

/* ---- Cursor glow effect ---- */
.cursor-glow {
  position: fixed;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle,
      rgba(168, 85, 247, 0.06) 0%,
      transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
}