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

:root {
  --sepia: #5A3E2B; --orange: #C46A2D; --amber: #D89A45;
  --paper: #F3E7C9; --coffee: #2B1D16; --green: #88A85A;
  --red: #A34A3D; --paper-dark: #E8D9B5; --paper-mid: #EDE0C8;
  --heading-font: 'Press Start 2P', 'VT323', monospace;
  --pixel-font: 'Pixelify Sans', 'Silkscreen', cursive;
  --body-font: 'IBM Plex Mono', 'Space Mono', 'Courier Prime', monospace;
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--body-font); background: var(--paper);
  color: var(--coffee); line-height: 1.7; overflow-x: hidden;
  position: relative;
}

/* ═══════════ OVERLAYS ═══════════ */
.scanlines {
  position: fixed; inset: 0; z-index: 9999; pointer-events: none;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.02) 2px, rgba(0,0,0,0.02) 4px
  );
}
.vignette {
  position: fixed; inset: 0; z-index: 9998; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 60%, rgba(43,29,22,0.25) 100%);
}
.paper-grain {
  position: fixed; inset: 0; z-index: 9997; pointer-events: none; opacity: 0.3;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

/* ═══════════ NAVIGATION ═══════════ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(243,231,201,0.85); backdrop-filter: blur(6px);
  border-bottom: 2px solid var(--sepia); transition: all 0.3s;
}
.nav-scrolled { background: rgba(43,29,22,0.92); border-color: var(--orange); }
.nav-scrolled .nav-links a, .nav-scrolled .nav-logo { color: var(--paper); }
.nav-inner {
  max-width: 1100px; margin: 0 auto; padding: 0.8rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--heading-font); font-size: 0.9rem;
  color: var(--sepia); text-decoration: none; letter-spacing: 2px;
}
.nav-logo-bracket { color: var(--orange); }
.nav-links {
  list-style: none; display: flex; gap: 1.8rem;
}
.nav-links a {
  font-family: var(--body-font); font-size: 0.85rem;
  color: var(--sepia); text-decoration: none; transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--orange); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 4px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--sepia); transition: 0.3s; }

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; background: var(--coffee); padding: 1.5rem; gap: 1rem;
  }
  .nav-links.nav-open { display: flex; }
  .nav-links a { color: var(--paper); }
  .nav-scrolled .nav-toggle span { background: var(--paper); }
}

/* ═══════════ SECTIONS ═══════════ */
.section { padding: 5rem 1.5rem; }
.section-inner { max-width: 1000px; margin: 0 auto; }
.section-header {
  display: flex; align-items: center; gap: 1rem; margin-bottom: 3rem;
}
.section-number {
  font-family: var(--heading-font); font-size: 0.7rem;
  color: var(--orange); border: 1px solid var(--orange);
  padding: 0.3rem 0.5rem;
}
.section-title {
  font-family: var(--heading-font); font-size: 1.1rem; color: var(--sepia);
  letter-spacing: 2px; text-transform: uppercase;
}
.section-line { flex: 1; height: 1px; background: var(--sepia); opacity: 0.3; }

/* ═══════════ HERO ═══════════ */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding-top: 6rem; background: var(--paper);
  background-image:
    linear-gradient(rgba(90,62,43,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90,62,43,0.03) 1px, transparent 1px);
  background-size: 24px 24px;
}
.hero-content { max-width: 800px; text-align: center; }
.hero-label {
  font-family: var(--body-font); color: var(--orange);
  font-size: 0.9rem; margin-bottom: 1rem; letter-spacing: 1px;
}
.hero-title {
  font-family: var(--heading-font); font-size: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--coffee); letter-spacing: 3px; margin-bottom: 1.2rem;
  line-height: 1.4; position: relative;
}
.glitch-text { animation: glitch-subtle 8s infinite; }
@keyframes glitch-subtle {
  0%, 95%, 100% { text-shadow: none; }
  96% { text-shadow: 2px 0 var(--orange), -2px 0 var(--green); }
  97% { text-shadow: -1px 0 var(--red), 1px 0 var(--green); }
  98% { text-shadow: none; }
}
.hero-subtitle {
  font-family: var(--pixel-font); font-size: 1rem; color: var(--sepia);
  margin-bottom: 1.5rem; display: flex; flex-wrap: wrap;
  justify-content: center; gap: 0.4rem;
}
.tag { white-space: nowrap; }
.tag-sep { color: var(--orange); }
.hero-desc {
  font-size: 1.05rem; color: var(--sepia); margin-bottom: 1rem;
  font-weight: 500; max-width: 600px; margin-left: auto; margin-right: auto;
}
.hero-intro {
  font-size: 0.92rem; color: var(--sepia); opacity: 0.85;
  max-width: 560px; margin: 0 auto 2rem; line-height: 1.8;
}
.hero-ctas { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 3rem; }

/* Buttons */
.btn {
  font-family: var(--body-font); font-size: 0.85rem; padding: 0.7rem 1.5rem;
  border: 2px solid var(--sepia); text-decoration: none; color: var(--sepia);
  transition: all 0.25s; cursor: pointer; letter-spacing: 1px;
  background: transparent; position: relative;
}
.btn:hover { background: var(--coffee); color: var(--paper); border-color: var(--coffee); }
.btn-primary { background: var(--sepia); color: var(--paper); }
.btn-primary:hover { background: var(--orange); border-color: var(--orange); }

/* Terminal Window */
.terminal-window {
  max-width: 480px; margin: 0 auto; border: 2px solid var(--sepia);
  background: var(--coffee); text-align: left; font-size: 0.8rem;
}
.terminal-header {
  display: flex; align-items: center; gap: 6px;
  padding: 0.5rem 0.8rem; border-bottom: 1px solid rgba(136,168,90,0.2);
}
.terminal-dot { width: 8px; height: 8px; border-radius: 50%; }
.terminal-dot.red { background: var(--red); }
.terminal-dot.amber { background: var(--amber); }
.terminal-dot.green { background: var(--green); }
.terminal-title {
  font-family: var(--body-font); color: var(--green); opacity: 0.6;
  font-size: 0.7rem; margin-left: auto;
}
.terminal-body { padding: 1rem; min-height: 100px; }
.terminal-line { margin-bottom: 0.3rem; color: var(--paper); opacity: 0.8; }
.terminal-line.hidden { display: none; }
.terminal-prompt { color: var(--green); margin-right: 0.5rem; }
.terminal-text { color: var(--paper); }
.terminal-green { color: var(--green); font-weight: bold; }
.cursor-blink { animation: blink 1s step-end infinite; color: var(--green); }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ═══════════ ACHIEVEMENTS ═══════════ */
.achievements-strip {
  background: var(--coffee); border-top: 3px solid var(--orange);
  border-bottom: 3px solid var(--orange); padding: 2rem 1.5rem;
}
.achievements-inner {
  max-width: 1000px; margin: 0 auto; display: flex;
  justify-content: center; gap: 2rem; flex-wrap: wrap;
}
.achievement-badge {
  display: flex; align-items: center; gap: 0.7rem;
  background: rgba(136,168,90,0.08); border: 1px solid var(--green);
  padding: 0.7rem 1.2rem; opacity: 0; transform: translateY(10px);
  transition: all 0.5s ease;
}
.achievement-badge.revealed { opacity: 1; transform: translateY(0); }
.badge-icon { font-size: 1.3rem; filter: grayscale(0.3); }
.badge-label {
  font-family: var(--pixel-font); font-size: 0.9rem;
  color: var(--green); letter-spacing: 1px; white-space: nowrap;
}

/* ═══════════ ABOUT ═══════════ */
.about { background: var(--paper-mid); }
.notebook-page {
  position: relative; padding-left: 4rem;
  background: linear-gradient(
    transparent 0px, transparent 27px,
    rgba(90,62,43,0.1) 27px, rgba(90,62,43,0.1) 28px
  );
  background-size: 100% 28px;
}
.notebook-margin {
  position: absolute; left: 3rem; top: 0; bottom: 0;
  width: 2px; background: var(--red); opacity: 0.35;
}
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.about-philosophy { grid-column: 1 / -1; }
.about-block {
  opacity: 0; transform: translateY(15px); transition: all 0.5s ease;
}
.about-block.revealed { opacity: 1; transform: translateY(0); }
.about-heading {
  font-family: var(--body-font); font-size: 0.85rem;
  color: var(--orange); margin-bottom: 0.8rem; letter-spacing: 1px;
}
.about-card {
  background: rgba(243,231,201,0.6); border: 1px solid rgba(90,62,43,0.15);
  padding: 1.2rem; font-size: 0.9rem;
}
.about-edu-degree { font-weight: 600; color: var(--sepia); }
.about-list { list-style: none; }
.about-list li { margin-bottom: 0.3rem; font-size: 0.9rem; }
.list-bullet { color: var(--orange); margin-right: 0.5rem; }
.quote-card { border-left: 3px solid var(--orange); }
.quote-card blockquote {
  font-style: italic; color: var(--sepia); line-height: 1.8; font-size: 0.92rem;
}

@media (max-width: 640px) {
  .about-grid { grid-template-columns: 1fr; }
  .notebook-page { padding-left: 2.5rem; }
  .notebook-margin { left: 1.5rem; }
}

/* ═══════════ PROJECTS ═══════════ */
.projects {
  background: var(--paper);
  background-image:
    linear-gradient(rgba(90,62,43,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90,62,43,0.02) 1px, transparent 1px);
  background-size: 20px 20px;
}
.projects-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem;
}
.project-card {
  border: 2px solid var(--sepia); background: var(--paper);
  transition: all 0.3s; position: relative; overflow: hidden;
  opacity: 0; transform: translateY(15px);
}
.project-card.revealed { opacity: 1; transform: translateY(0); }
.project-card:hover { transform: translateY(-4px); box-shadow: 4px 4px 0 var(--sepia); }
.project-card.revealed:hover { transform: translateY(-4px); }
.project-card.flagship { border-color: var(--orange); grid-column: 1 / -1; }
.project-card.flagship .card-body {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
}
.project-card.flagship .card-title,
.project-card.flagship .card-desc { grid-column: 1 / -1; }
.card-top-strip {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.4rem 0.8rem; background: var(--sepia); color: var(--paper);
  font-family: var(--pixel-font); font-size: 0.75rem; letter-spacing: 1px;
}
.flagship .card-top-strip { background: var(--orange); }
.card-cartridge-id { opacity: 0.7; }
.card-body { padding: 1.2rem; }
.card-title {
  font-family: var(--heading-font); font-size: 0.9rem; color: var(--sepia);
  margin-bottom: 0.7rem; letter-spacing: 1px;
}
.card-desc { font-size: 0.88rem; margin-bottom: 1rem; line-height: 1.6; opacity: 0.9; }
.card-features h4 {
  font-family: var(--pixel-font); font-size: 0.8rem; color: var(--orange);
  margin-bottom: 0.4rem;
}
.card-features ul { list-style: none; margin-bottom: 1rem; }
.card-features li {
  font-size: 0.82rem; padding: 0.15rem 0; color: var(--sepia);
}
.card-features li::before { content: "▸ "; color: var(--green); }
.card-metrics {
  display: flex; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap;
}
.metric {
  background: var(--coffee); padding: 0.5rem 0.8rem;
  text-align: center; min-width: 80px;
}
.metric-value {
  display: block; font-family: var(--heading-font); font-size: 0.65rem;
  color: var(--green); margin-bottom: 0.2rem;
}
.metric-label {
  display: block; font-size: 0.7rem; color: var(--paper); opacity: 0.7;
}
.card-tech { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.tech-tag {
  font-family: var(--pixel-font); font-size: 0.75rem;
  background: var(--paper-dark); color: var(--sepia); padding: 0.2rem 0.5rem;
  border: 1px solid rgba(90,62,43,0.2);
}
.card-link {
  font-family: var(--body-font); font-size: 0.82rem; color: var(--orange);
  text-decoration: none; transition: color 0.2s;
}
.card-link:hover { color: var(--green); }

/* ═══════════ OPEN SOURCE ═══════════ */
.opensource { background: var(--paper-mid); }
.issue-tracker { border: 2px solid var(--sepia); background: var(--paper); }
.tracker-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.6rem 1rem; background: var(--sepia); color: var(--paper);
  font-family: var(--pixel-font); font-size: 0.8rem; letter-spacing: 1px;
}
.tracker-status { color: var(--green); }
.timeline { padding: 1.5rem; position: relative; }
.timeline::before {
  content: ""; position: absolute; left: 1.5rem; top: 0; bottom: 0;
  width: 2px; background: rgba(90,62,43,0.15);
}
.timeline-entry {
  position: relative; padding-left: 2.5rem; margin-bottom: 2rem;
  opacity: 0; transform: translateX(-10px); transition: all 0.5s ease;
}
.timeline-entry.revealed { opacity: 1; transform: translateX(0); }
.timeline-entry:last-child { margin-bottom: 0; }
.timeline-marker {
  position: absolute; left: -6.5px; top: 0.3rem;
  width: 12px; height: 12px; background: var(--orange);
  border: 2px solid var(--paper); border-radius: 50;
}
.timeline-card {
  border: 1px solid rgba(90,62,43,0.15); padding: 1rem;
  background: rgba(243,231,201,0.5);
}
.timeline-meta {
  display: flex; gap: 0.8rem; align-items: center; margin-bottom: 0.5rem;
}
.timeline-project {
  font-family: var(--pixel-font); font-size: 0.8rem; color: var(--orange);
}
.timeline-type {
  font-size: 0.65rem; font-family: var(--body-font);
  background: var(--coffee); color: var(--green);
  padding: 0.1rem 0.4rem; letter-spacing: 1px;
}
.timeline-title {
  font-family: var(--body-font); font-size: 0.95rem; font-weight: 600;
  color: var(--sepia); margin-bottom: 0.4rem;
}
.timeline-desc { font-size: 0.85rem; opacity: 0.85; margin-bottom: 0.6rem; }
.timeline-link {
  font-size: 0.82rem; color: var(--orange); text-decoration: none;
}
.timeline-link:hover { color: var(--green); }

/* In-progress tracker variant */
.tracker-header-wip { background: var(--coffee); }
.tracker-status-wip { color: var(--amber); }
.marker-wip { background: var(--amber); animation: pulse-wip 2s ease-in-out infinite; }
@keyframes pulse-wip {
  0%, 100% { box-shadow: 0 0 0 0 rgba(216,154,69,0.4); }
  50% { box-shadow: 0 0 0 5px rgba(216,154,69,0); }
}
.type-wip {
  background: rgba(216,154,69,0.15); color: var(--amber);
}
.issue-tracker.in-progress { border-color: var(--amber); }
.issue-tracker.in-progress .timeline::before { background: rgba(216,154,69,0.2); }

/* ═══════════ CONTACT / FOOTER ═══════════ */
.contact {
  background: var(--coffee); color: var(--paper);
  border-top: 3px solid var(--orange);
}
.contact .section-number { color: var(--green); border-color: var(--green); }
.contact .section-title { color: var(--paper); }
.contact .section-line { background: var(--paper); }
.contact-content { text-align: center; margin-bottom: 3rem; }
.contact-text {
  font-size: 1rem; margin-bottom: 1.5rem; color: var(--paper); opacity: 0.85;
}
.contact-links { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.contact-link {
  font-family: var(--body-font); font-size: 0.9rem; color: var(--green);
  text-decoration: none; border: 1px solid var(--green);
  padding: 0.5rem 1rem; transition: all 0.25s;
}
.contact-link:hover { background: var(--green); color: var(--coffee); }
.footer-bottom {
  text-align: center; padding-top: 2rem;
  border-top: 1px solid rgba(243,231,201,0.1);
}
.footer-text { font-size: 0.8rem; color: var(--paper); opacity: 0.6; margin-bottom: 0.3rem; }
.footer-note {
  font-size: 0.72rem; color: var(--green); opacity: 0.4; font-style: italic;
}

/* ═══════════ TOAST NOTIFICATIONS ═══════════ */
.toast-container {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 10000;
  display: flex; flex-direction: column; gap: 0.5rem;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  background: var(--coffee); border: 2px solid var(--green);
  padding: 0; min-width: 300px; max-width: 380px;
  font-family: var(--body-font); font-size: 0.82rem;
  box-shadow: 4px 4px 0 rgba(0,0,0,0.3);
  animation: toast-in 0.4s ease forwards;
  position: relative; overflow: hidden;
}
.toast.toast-out { animation: toast-out 0.35s ease forwards; }
.toast-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.4rem 0.7rem; background: rgba(136,168,90,0.15);
  border-bottom: 1px solid rgba(136,168,90,0.2);
}
.toast-header-label {
  font-family: var(--pixel-font); font-size: 0.7rem;
  color: var(--green); letter-spacing: 1px;
}
.toast-close {
  background: none; border: none; color: var(--red);
  font-family: var(--body-font); font-size: 0.9rem;
  cursor: pointer; padding: 0 0.2rem; line-height: 1;
}
.toast-close:hover { color: var(--paper); }
.toast-body { padding: 0.7rem; }
.toast-body p { color: var(--paper); line-height: 1.5; margin: 0; }
.toast-body .toast-prompt { color: var(--green); }
.toast-body .toast-accent { color: var(--amber); }

@keyframes toast-in {
  0% { opacity: 0; transform: translateX(100%) scale(0.95); }
  100% { opacity: 1; transform: translateX(0) scale(1); }
}
@keyframes toast-out {
  0% { opacity: 1; transform: translateX(0) scale(1); }
  100% { opacity: 0; transform: translateX(100%) scale(0.95); }
}

/* ═══════════ KONAMI OVERLAY ═══════════ */
.konami-overlay {
  position: fixed; inset: 0; z-index: 10001;
  background: rgba(43,29,22,0.92);
  display: flex; align-items: center; justify-content: center;
  animation: konami-flash 0.6s ease;
}
.konami-overlay.hidden { display: none; }
.konami-box {
  text-align: center; padding: 2.5rem;
  border: 3px solid var(--green);
  background: var(--coffee);
  box-shadow: 0 0 40px rgba(136,168,90,0.2), inset 0 0 30px rgba(136,168,90,0.05);
  max-width: 500px;
}
.konami-art {
  font-family: var(--body-font); font-size: 0.6rem;
  color: var(--green); margin-bottom: 1.5rem;
  line-height: 1.2; white-space: pre;
}
.konami-msg {
  font-family: var(--heading-font); font-size: 0.8rem;
  color: var(--amber); margin-bottom: 0.8rem;
  animation: blink 1.2s step-end infinite;
}
.konami-sub {
  font-family: var(--body-font); font-size: 0.82rem;
  color: var(--paper); opacity: 0.8; margin-bottom: 1.2rem; line-height: 1.6;
}
.konami-hint {
  font-family: var(--body-font); font-size: 0.7rem;
  color: var(--green); opacity: 0.4; font-style: italic;
}

@keyframes konami-flash {
  0% { background: rgba(136,168,90,0.4); }
  30% { background: rgba(43,29,22,0.92); }
  50% { background: rgba(136,168,90,0.15); }
  100% { background: rgba(43,29,22,0.92); }
}

/* CRT glitch effect triggered by konami */
body.crt-glitch { animation: crt-glitch-effect 0.15s linear 3; }
@keyframes crt-glitch-effect {
  0% { transform: translate(0); filter: hue-rotate(0deg); }
  25% { transform: translate(-2px, 1px); filter: hue-rotate(90deg); }
  50% { transform: translate(1px, -1px); filter: hue-rotate(180deg); }
  75% { transform: translate(-1px, 2px); filter: hue-rotate(270deg); }
  100% { transform: translate(0); filter: hue-rotate(360deg); }
}

/* ═══════════ RESPONSIVE ═══════════ */
@media (max-width: 480px) {
  .hero-title { font-size: 1.3rem; }
  .section { padding: 3rem 1rem; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card.flagship .card-body { grid-template-columns: 1fr; }
  .toast { min-width: 240px; max-width: 300px; }
  .konami-box { padding: 1.5rem; margin: 1rem; }
  .konami-art { font-size: 0.45rem; }
}