/* ========== RESET & BASE ========== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0e0e16;
  --bg-alt: #131320;
  --bg-card: #181828;
  --bg-card-hover: #1f1f34;
  --text: #f2f2f8;
  --text-muted: #b0b0cc;
  --accent: #7b5cff;
  --accent-bright: #a78bfa;
  --accent-glow: rgba(123, 92, 255, 0.25);
  --accent-blue: #38bdf8;
  --border: #2a2a40;
  --font-main: "Space Grotesk", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --font-retro: "Press Start 2P", cursive;
}

[data-theme="light"] {
  /* light mode disabled */
}

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

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

/* ========== NAVBAR ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 3rem;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: var(--font-retro);
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.accent {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
  font-family: var(--font-mono);
}

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

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ========== HERO ========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 3rem 3rem;
  position: relative;
  background: linear-gradient(135deg, var(--bg), #0f0a1a, #0a0a0f, #0d0820);
  background-size: 400% 400%;
  animation: gradientShift 12s ease infinite;
}

[data-theme="light"] .hero {
  background: linear-gradient(135deg, #f5f5fa, #ede8ff, #f5f5fa, #e8e0ff);
  background-size: 400% 400%;
  animation: gradientShift 12s ease infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

#particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  max-width: 700px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-pfp {
  width: 350px;
  height: 350px;
  border-radius: 50%;
  border: 3px solid var(--accent);
  box-shadow: 0 0 30px var(--accent-glow);
  margin-bottom: 2rem;
  image-rendering: pixelated;
  object-fit: cover;
}

.hero-greeting {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.hero-name {
  font-family: var(--font-retro);
  font-size: clamp(1.5rem, 4vw, 2.8rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 1.25rem;
}

.hero-tagline {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 500px;
  margin-bottom: 2.5rem;
  min-height: 1.8em;
}

.hero-tagline::after {
  content: "|";
  animation: blink 0.8s step-end infinite;
  color: var(--accent);
  margin-left: 2px;
}

.hero-tagline.typed::after {
  display: none;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* Status badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #4ade80;
  background: rgba(74, 222, 128, 0.08);
  border: 1px solid rgba(74, 222, 128, 0.2);
  padding: 0.35rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ade80;
  animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.4); }
  50% { box-shadow: 0 0 0 6px rgba(74, 222, 128, 0); }
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  right: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.hero-scroll span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  writing-mode: vertical-rl;
  letter-spacing: 0.1em;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.25s;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: transparent;
  color: var(--accent-bright);
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-bright);
  box-shadow: 0 0 20px var(--accent-glow);
}

/* ========== SECTIONS ========== */
.section {
  max-width: 900px;
  margin: 0 auto;
  padding: 6rem 3rem;
}

.section:nth-child(even) {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  max-width: 100%;
  padding-left: calc((100% - 900px) / 2 + 3rem);
  padding-right: calc((100% - 900px) / 2 + 3rem);
}

.section-title {
  font-family: var(--font-retro);
  font-size: 1.4rem;
  font-weight: 400;
  margin-bottom: 3rem;
  letter-spacing: -0.01em;
}

/* ========== ABOUT ========== */
.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-size: 1rem;
  line-height: 1.75;
}

.about-details {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.detail-card h3 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
  text-transform: lowercase;
}

.detail-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ========== NOW ========== */
.now-card-single {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.25rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.now-row h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-bright);
  text-transform: lowercase;
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

.now-row-half h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-bright);
  text-transform: lowercase;
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

.now-divider {
  height: 1px;
  background: var(--border);
  margin: 1.75rem 0;
}

.now-row-split {
  display: flex;
  gap: 2.5rem;
}

.now-row-half {
  flex: 1;
}

/* Building */
.now-building-items {
  display: flex;
  gap: 1.25rem;
}

.now-project-thumb {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.now-img-placeholder {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.now-project-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.now-project-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* Reading */
.now-book {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.now-book-cover .now-img-placeholder.book {
  width: 60px;
  height: 88px;
  border-radius: 6px;
  font-size: 1.6rem;
}

.now-book-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.2rem;
  line-height: 1.4;
}

.now-book-author {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Learning */
.now-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.now-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-blue);
  padding: 0.35rem 0.9rem;
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: 100px;
  background: rgba(56, 189, 248, 0.05);
}

@media (max-width: 768px) {
  .now-row-split {
    flex-direction: column;
    gap: 1.5rem;
  }
  .now-building-items {
    flex-direction: column;
    gap: 1rem;
  }
}

/* ========== PROJECTS ========== */
.project-filters {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.5rem 1.25rem;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--accent);
  color: var(--accent-bright);
  background: rgba(123, 92, 255, 0.08);
}

.carousel-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.carousel-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 1.5rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel-btn:hover {
  border-color: var(--accent);
  color: var(--accent-bright);
  box-shadow: 0 0 12px var(--accent-glow);
}

.carousel-wrapper .carousel-btn.carousel-hidden {
  opacity: 0;
  pointer-events: none;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.projects-grid.carousel-mode {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -ms-overflow-style: none;
  scrollbar-width: none;
  gap: 1.5rem;
  flex: 1;
  min-width: 0;
}

.projects-grid.carousel-mode::-webkit-scrollbar {
  display: none;
}

.projects-grid.carousel-mode .project-card {
  min-width: calc(33.333% - 1rem);
  max-width: calc(33.333% - 1rem);
  scroll-snap-align: start;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .projects-grid.carousel-mode .project-card {
    min-width: 85%;
    max-width: 85%;
  }

  .carousel-btn {
    display: none;
  }
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.75rem;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.project-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.project-card.hidden {
  display: none;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  background: rgba(123, 92, 255, 0.12);
  color: var(--accent-bright);
  text-transform: lowercase;
}

.project-link {
  font-size: 1.1rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.project-link:hover {
  color: var(--accent-bright);
}

.project-name {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.project-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.project-tech li {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-blue);
  padding: 0.2rem 0.6rem;
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: 4px;
}

/* ========== PROJECT MODAL ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  padding: 1.5rem;
}

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

.modal {
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: 14px;
  padding: 2.5rem;
  max-width: 550px;
  width: 100%;
  position: relative;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.3s;
  box-shadow: 0 12px 50px var(--accent-glow);
}

.modal-overlay.active .modal {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.2s;
  line-height: 1;
}

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

.modal-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  background: rgba(123, 92, 255, 0.12);
  color: var(--accent-bright);
  text-transform: lowercase;
  display: inline-block;
  margin-bottom: 1rem;
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.modal-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.modal-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin-bottom: 2rem;
}

.modal-tech li {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-blue);
  padding: 0.2rem 0.6rem;
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: 4px;
}

.modal-github {
  display: inline-block;
}

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

.skills-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: border-color 0.3s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.skills-category:hover {
  border-color: var(--accent);
}

.skills-category h3 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-bright);
  text-transform: lowercase;
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}

.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text);
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(123, 92, 255, 0.06);
  transition: all 0.2s;
}

.skill-tag:hover {
  border-color: var(--accent);
  color: var(--accent-bright);
  box-shadow: 0 0 10px var(--accent-glow);
}

@media (max-width: 768px) {
  .skills-grid {
    grid-template-columns: 1fr;
  }
}

/* ========== EXPERIENCE ========== */
.timeline {
  position: relative;
  padding-left: 2.5rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), var(--border));
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
}

.timeline-marker {
  position: absolute;
  left: -2.5rem;
  top: 0.35rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 10px var(--accent-glow);
  transform: translateX(-50%);
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: border-color 0.3s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.timeline-content:hover {
  border-color: var(--accent);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.25rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.timeline-header h3 {
  font-size: 1.05rem;
  font-weight: 600;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
}

.timeline-company {
  font-size: 0.9rem;
  color: var(--accent-bright);
  margin-bottom: 0.75rem;
}

.timeline-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ========== CONTACT ========== */
#contact {
  text-align: center;
}

.contact-text {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 450px;
  margin: 0 auto 2rem;
}

.contact-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  align-items: center;
}

.contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  transition: all 0.3s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.contact-icon:hover {
  border-color: var(--accent);
  color: var(--accent-bright);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-3px);
}

/* ========== FOOTER ========== */
.footer {
  text-align: center;
  padding: 2rem 3rem;
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
}

.footer p {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ========== ANIMATIONS ========== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delays for cards */
.stagger-1 { transition-delay: 0.05s; }
.stagger-2 { transition-delay: 0.1s; }
.stagger-3 { transition-delay: 0.15s; }
.stagger-4 { transition-delay: 0.2s; }
.stagger-5 { transition-delay: 0.25s; }
.stagger-6 { transition-delay: 0.3s; }
.stagger-7 { transition-delay: 0.35s; }
.stagger-8 { transition-delay: 0.4s; }

/* Tilt on project cards */
.project-card {
  transform-style: preserve-3d;
  perspective: 800px;
}

/* Easter egg */
.easter-egg {
  position: fixed;
  inset: 0;
  background: rgba(123, 92, 255, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s, visibility 0.5s;
}

.easter-egg.active {
  opacity: 1;
  visibility: visible;
}

.easter-egg p {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: #fff;
  text-align: center;
  animation: easterPop 0.5s ease;
}

@keyframes easterPop {
  0% { transform: scale(0.5); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

/* Skill bar animation */
.skill-tag {
  position: relative;
  overflow: hidden;
}

.skill-tag::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: var(--accent);
  transition: width 0.6s ease;
}

.skill-tag.animate::before {
  width: 100%;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .navbar {
    padding: 1rem 1.5rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(12px);
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 5rem 1.5rem 3rem;
  }

  .hero-scroll {
    display: none;
  }

  .section {
    padding: 4rem 1.5rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .timeline-header {
    flex-direction: column;
  }
}