/* ===================================================
   Neo-Brutalist Paper Folio — Design System
   =================================================== */

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

/* --- CSS VARIABLES --- */
:root {
  --bg: #FDFBF7;
  --bg-alt: #F5F0E8;
  --text: #1a1a1a;
  --text-muted: #555;
  --black: #000000;
  --white: #FFFFFF;

  --accent-pink: #FF7FAD;
  --accent-yellow: #FFD600;
  --accent-blue: #4D96FF;
  --accent-green: #5CDB95;
  --accent-orange: #FF9F45;
  --accent-purple: #A78BFA;

  --border-w: 2.5px;
  --shadow-sm: 3px 3px 0px 0px var(--black);
  --shadow-md: 5px 5px 0px 0px var(--black);
  --shadow-lg: 8px 8px 0px 0px var(--black);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 50px;

  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'Space Mono', 'Courier New', monospace;

  --max-w: 960px;
  --transition: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

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

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

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

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

/* --- UTILITY --- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.section-label .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-pink);
  display: inline-block;
}

/* --- NAVIGATION --- */
.navbar {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  background: var(--white);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  padding: 8px 8px;
  display: flex;
  align-items: center;
  gap: 4px;
  backdrop-filter: blur(10px);
}

.navbar a {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  transition: var(--transition);
  white-space: nowrap;
}

.navbar a:hover {
  background: var(--bg-alt);
}

.navbar a.active,
.navbar .nav-cta {
  background: var(--black);
  color: var(--white);
}

.navbar .nav-cta:hover {
  background: #333;
}

/* --- HERO SECTION --- */
.hero {
  padding-top: 120px;
  padding-bottom: 60px;
}

.hero-card {
  background: var(--white);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 48px;
  position: relative;
  overflow: hidden;
}

.hero-stickers {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.sticker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 6px 14px;
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-pill);
  box-shadow: 2px 2px 0px 0px var(--black);
  transform: rotate(-2deg);
  transition: var(--transition);
  cursor: default;
}

.sticker:nth-child(odd) {
  transform: rotate(1.5deg);
}

.sticker:hover {
  transform: rotate(0deg) scale(1.05);
}

.sticker--pink {
  background: var(--accent-pink);
  color: var(--black);
}

.sticker--yellow {
  background: var(--accent-yellow);
  color: var(--black);
}

.sticker--blue {
  background: var(--accent-blue);
  color: var(--white);
}

.sticker--green {
  background: var(--accent-green);
  color: var(--black);
}

.sticker--orange {
  background: var(--accent-orange);
  color: var(--black);
}

.hero-greeting {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.hero-name {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 8px;
}

.hero-name .highlight {
  color: var(--accent-pink);
  position: relative;
}

.hero-title {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  font-weight: 600;
  color: var(--text);
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.stat-chip {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 8px 16px;
  background: var(--bg-alt);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.stat-chip:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 14px 28px;
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--black);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0px 0px var(--black);
}

.btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px 0px var(--black);
}

.btn-secondary {
  background: var(--white);
  color: var(--black);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0px 0px var(--black);
  background: var(--accent-yellow);
}

.btn-secondary:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px 0px var(--black);
}

/* --- VALUE PROPS --- */
.value-props {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.value-card {
  background: var(--white);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 28px;
  transition: var(--transition);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.value-card .icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.value-card h3 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.value-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- ABOUT --- */
.about-card {
  background: var(--white);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-photo-wrapper {
  background: var(--accent-yellow);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}

.about-photo-wrapper .photo-placeholder {
  width: 100%;
  aspect-ratio: 1;
  background: var(--bg-alt);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.about-photo-wrapper .photo-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-content h2 {
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 16px;
}

.about-content p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.about-details {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.detail-row {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 0.88rem;
}

.detail-row .label {
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--bg-alt);
  border: var(--border-w) solid var(--black);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  box-shadow: 2px 2px 0px 0px var(--black);
  white-space: nowrap;
}

.detail-row .value {
  color: var(--text-muted);
}

/* --- SKILLS & TECHNOLOGIES --- */
.skills-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.skill-tab {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 10px 20px;
  background: var(--white);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: var(--transition);
}

.skill-tab:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.skill-tab.active {
  background: var(--black);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.skill-card {
  background: var(--white);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 20px;
  transition: var(--transition);
}

.skill-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

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

.skill-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.skill-icon {
  font-size: 1.5rem;
}

.skill-name {
  flex: 1;
  font-weight: 700;
  font-size: 0.9rem;
}

.skill-percent {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
}

.skill-bar {
  height: 8px;
  background: var(--bg-alt);
  border: var(--border-w) solid var(--black);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.skill-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-pink) 0%, var(--accent-purple) 50%, var(--accent-blue) 100%);
  width: 0;
  transition: width 1s cubic-bezier(0.65, 0, 0.35, 1);
}

.skill-card.visible .skill-fill {
  width: var(--skill-width);
}

/* --- PROJECTS --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--white);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0px 0px var(--black);
}

.project-thumb {
  width: 100%;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: var(--border-w) solid var(--black);
  overflow: hidden;
}

.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.project-thumb.pink {
  background: var(--accent-pink);
}

.project-thumb.yellow {
  background: var(--accent-yellow);
}

.project-thumb.blue {
  background: var(--accent-blue);
}

.project-thumb.green {
  background: var(--accent-green);
}

.project-thumb.orange {
  background: var(--accent-orange);
}

.project-thumb.purple {
  background: var(--accent-purple);
}

.project-info {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-info h3 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.project-info p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 4px 10px;
  background: var(--bg-alt);
  border: 1.5px solid var(--black);
  border-radius: var(--radius-sm);
}

.project-links {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1.5px dashed #ccc;
}

.project-links a {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 14px;
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-sm);
  box-shadow: 2px 2px 0px 0px var(--black);
  transition: var(--transition);
  background: var(--white);
}

.project-links a:hover {
  background: var(--accent-yellow);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px 0px var(--black);
}

/* --- BADGES --- */
.badges-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.badge-card {
  background: var(--white);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
}

.badge-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.badge-card .badge-icon {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.badge-card h4 {
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 4px;
  line-height: 1.4;
}

.badge-card .badge-date {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
}

.badges-cta {
  text-align: center;
  margin-top: 32px;
}

/* --- CONTACT --- */
.contact-card {
  background: var(--accent-yellow);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 60px 48px;
  text-align: center;
}

.contact-card h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  margin-bottom: 16px;
}

.contact-card p {
  font-size: 1rem;
  color: var(--text);
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 14px 24px;
  background: var(--white);
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.contact-link:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0px 0px var(--black);
}

.contact-link:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px 0px var(--black);
}

/* --- FOOTER --- */
.footer {
  text-align: center;
  padding: 40px 0;
  border-top: var(--border-w) solid var(--black);
  margin-top: 0;
}

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

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 12px;
}

.footer-links a {
  font-size: 0.8rem;
  font-weight: 600;
  transition: var(--transition);
}

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

/* --- REPOS MARQUEE --- */
.repos-section {
  overflow: hidden;
  padding: 60px 0;
}

.repos-scroll-wrapper {
  overflow: hidden;
  position: relative;
}

.repos-scroll-wrapper::before,
.repos-scroll-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 60px;
  z-index: 2;
  pointer-events: none;
}

.repos-scroll-wrapper::before {
  left: 0;
  background: linear-gradient(to right, var(--bg), transparent);
}

.repos-scroll-wrapper::after {
  right: 0;
  background: linear-gradient(to left, var(--bg), transparent);
}

.repos-track {
  display: flex;
  gap: 16px;
  animation: marquee 40s linear infinite;
  width: max-content;
}

.repos-track:hover {
  animation-play-state: paused;
}

@keyframes marquee {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

/* --- RESPONSIVE --- */
@media (max-width: 800px) {
  .hero-card {
    padding: 32px 24px;
  }

  .value-props {
    grid-template-columns: 1fr;
  }

  .about-card {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }

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

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

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

  .navbar {
    top: auto;
    bottom: 20px;
    max-width: calc(100vw - 32px);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .navbar::-webkit-scrollbar {
    display: none;
  }

  .hero {
    padding-top: 60px;
  }

  .contact-card {
    padding: 40px 24px;
  }

  .section {
    padding: 50px 0;
  }
}

@media (max-width: 500px) {
  .badges-grid {
    grid-template-columns: 1fr;
  }

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

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

  .contact-card h2 {
    font-size: 1.6rem;
  }
}

/* ============================================
   SCROLL REVEAL ANIMATION SYSTEM
   ============================================ */

/* Base: all .reveal elements start invisible and shifted down */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

/* Triggered by JS once element enters viewport */
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for grid children */
.reveal.visible:nth-child(1) { transition-delay: 0ms; }
.reveal.visible:nth-child(2) { transition-delay: 80ms; }
.reveal.visible:nth-child(3) { transition-delay: 160ms; }
.reveal.visible:nth-child(4) { transition-delay: 240ms; }
.reveal.visible:nth-child(5) { transition-delay: 320ms; }
.reveal.visible:nth-child(6) { transition-delay: 400ms; }
.reveal.visible:nth-child(7) { transition-delay: 480ms; }
.reveal.visible:nth-child(8) { transition-delay: 560ms; }

/* Hero card — subtle scale entrance */
.hero-card.reveal {
  transform: translateY(28px) scale(0.98);
}
.hero-card.reveal.visible {
  transform: translateY(0) scale(1);
}

/* Skill cards — slide in from left */
.skill-card.reveal {
  transform: translateX(-20px);
}
.skill-card.reveal.visible {
  transform: translateX(0);
}

/* Badge cards — spring pop */
.badge-card.reveal {
  transform: translateY(20px) scale(0.94);
  transition:
    opacity 0.45s ease,
    transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.badge-card.reveal.visible {
  transform: translateY(0) scale(1);
}

/* Section labels slide in from the left */
.section-label {
  opacity: 0;
  transform: translateX(-18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.section-label.visible {
  opacity: 1;
  transform: translateX(0);
}

/* AI Studio live pulse dot */
@keyframes pulse {
  0%   { transform: scale(1);   opacity: 1; }
  50%  { transform: scale(1.4); opacity: 0.6; }
  100% { transform: scale(1);   opacity: 1; }
}

/* Hint browser to skip rendering off-screen images */
.project-thumb img,
.about-photo-wrapper img {
  content-visibility: auto;
}