/* =========================================
   aayushagrawal.codes — main stylesheet
   aesthetic: sketch / pencil on paper
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@400;500;600;700&family=Architects+Daughter&family=Kalam:wght@300;400;700&family=Special+Elite&display=swap');

:root {
  --paper: #f5f0e8;
  --paper-dark: #ede7d4;
  --ink: #1a1410;
  --ink-light: #3d3028;
  --ink-faint: #6b5d52;
  --pencil: #8b7355;
  --pencil-light: #c4a882;
  --accent: #2d5a8e;
  --accent-red: #8b2020;
  --accent-green: #2d6b3a;
  --sketch-line: rgba(26, 20, 16, 0.12);
  --font-main: 'Caveat', cursive;
  --font-display: 'Architects Daughter', cursive;
  --font-body: 'Kalam', cursive;
  --font-mono: 'Special Elite', cursive;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  overflow-x: hidden;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 27px,
      var(--sketch-line) 27px,
      var(--sketch-line) 28px
    );
  background-attachment: fixed;
}

/* paper texture grain overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.6;
}

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--paper-dark); }
::-webkit-scrollbar-thumb { background: var(--pencil-light); border-radius: 0; }

/* ============ UTILITY ============ */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: var(--ink);
  margin-bottom: 0.3rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  display: block;
  height: 3px;
  margin-top: 4px;
  background: var(--ink);
  border-radius: 2px;
  /* wobbly underline via SVG filter */
  filter: url(#squiggle);
}

.sketch-box {
  border: 2px solid var(--ink);
  border-radius: 2px;
  position: relative;
  filter: url(#sketch);
}

.sketch-box::before {
  content: '';
  position: absolute;
  inset: 3px;
  border: 1px solid var(--pencil-light);
  border-radius: 1px;
  pointer-events: none;
}

/* ============ HIDDEN SVG FILTERS ============ */
#svg-filters { position: absolute; width: 0; height: 0; overflow: hidden; }

/* ============ NAV ============ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--paper);
  border-bottom: 2px solid var(--ink);
  padding: 0.8rem 0;
  filter: url(#sketch);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.05em;
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-main);
  font-size: 1.15rem;
  color: var(--ink-faint);
  text-decoration: none;
  position: relative;
  transition: color 0.2s;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 2px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); }

/* hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--ink);
  transition: all 0.3s;
}

/* ============ HERO ============ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
  width: 100%;
}

.hero-text {}

.hero-greeting {
  font-family: var(--font-main);
  font-size: 1.3rem;
  color: var(--pencil);
  margin-bottom: 0.3rem;
  display: block;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 8vw, 6rem);
  line-height: 1;
  margin-bottom: 0.5rem;
  color: var(--ink);
}

.hero-name em {
  font-style: normal;
  color: var(--accent);
  position: relative;
}

.hero-role {
  font-family: var(--font-main);
  font-size: 1.5rem;
  color: var(--ink-light);
  margin-bottom: 1.5rem;
}

.hero-role .tag {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  padding: 0.1em 0.5em;
  margin: 0 0.2em;
  transform: rotate(-1deg);
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--ink-faint);
  max-width: 480px;
  margin-bottom: 2rem;
}

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

.btn-sketch {
  font-family: var(--font-display);
  font-size: 1rem;
  padding: 0.55em 1.4em;
  border: 2px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  position: relative;
  transition: background 0.2s, color 0.2s;
  filter: url(#sketch);
}

.btn-sketch::after {
  content: '';
  position: absolute;
  inset: 3px 3px -3px 3px;
  border: 1px solid var(--pencil-light);
  pointer-events: none;
}

.btn-sketch:hover {
  background: var(--ink);
  color: var(--paper);
}

.btn-sketch.filled {
  background: var(--ink);
  color: var(--paper);
}
.btn-sketch.filled:hover {
  background: transparent;
  color: var(--ink);
}

/* hero doodle */
.hero-doodle {
  position: relative;
  width: 280px;
  flex-shrink: 0;
}

.hero-doodle svg {
  width: 100%;
  height: auto;
  filter: url(#pencil);
}

/* floating annotations */
.annotation {
  position: absolute;
  font-family: var(--font-main);
  font-size: 0.85rem;
  color: var(--pencil);
  white-space: nowrap;
}

.annotation::before {
  content: '→ ';
}

/* ============ FOLDER STRUCTURE decoration ============ */
.file-tree {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--ink-faint);
  line-height: 1.9;
  padding: 1.2rem 1.5rem;
  background: var(--paper-dark);
  border: 2px solid var(--ink);
  display: inline-block;
  margin-bottom: 2rem;
  filter: url(#sketch);
}

.file-tree .dir { color: var(--accent); }
.file-tree .file { color: var(--ink-light); }
.file-tree .active { color: var(--accent-red); font-weight: bold; }
.file-tree .comment { color: var(--pencil-light); font-style: italic; }

/* ============ ABOUT ============ */
#about {
  padding: 6rem 0 4rem;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  margin-top: 2.5rem;
}

.about-text p {
  margin-bottom: 1rem;
  color: var(--ink-light);
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.skill-tag {
  font-family: var(--font-main);
  font-size: 1rem;
  padding: 0.2em 0.8em;
  border: 1.5px solid var(--ink);
  color: var(--ink);
  background: transparent;
  transform: rotate(var(--r, -1deg));
  filter: url(#sketch);
  position: relative;
}

.skill-tag:nth-child(even) { --r: 1deg; }
.skill-tag:nth-child(3n) { --r: -0.5deg; }

.notebook-lines {
  padding: 1.5rem;
  background: var(--paper-dark);
  border: 2px solid var(--ink);
  filter: url(#sketch);
  position: relative;
}

.notebook-lines .nb-row {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--sketch-line);
  font-family: var(--font-main);
  font-size: 1.05rem;
}

.notebook-lines .nb-row:last-child { border-bottom: none; }

.nb-label {
  color: var(--pencil);
  min-width: 90px;
  font-size: 0.9rem;
}

.nb-value {
  color: var(--ink);
  font-weight: 600;
}

/* margin line on notebook */
.notebook-lines::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: 28px;
  width: 2px;
  background: rgba(139, 32, 32, 0.25);
}

/* ============ PROJECTS ============ */
#projects {
  padding: 5rem 0;
}

.projects-header {
  display: flex;
  align-items: flex-end;
  gap: 1.5rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.projects-meta {
  font-family: var(--font-main);
  color: var(--pencil);
  font-size: 1rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 1.8rem;
}

.project-card {
  border: 2px solid var(--ink);
  padding: 1.5rem;
  background: var(--paper);
  position: relative;
  transition: transform 0.2s;
  filter: url(#sketch);
}

.project-card::after {
  content: '';
  position: absolute;
  inset: 4px 4px -4px 4px;
  border: 1px solid var(--pencil-light);
  z-index: -1;
  pointer-events: none;
}

.project-card:hover {
  transform: translateY(-3px) rotate(0.3deg);
}

.project-card .card-num {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--sketch-line);
  position: absolute;
  top: 0.5rem;
  right: 1rem;
  line-height: 1;
  user-select: none;
}

.project-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--ink);
}

.project-card .project-lang {
  font-family: var(--font-main);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.project-card .project-lang::before {
  content: '';
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.project-card p {
  font-size: 0.95rem;
  color: var(--ink-faint);
  margin-bottom: 1.2rem;
  min-height: 3em;
}

.project-card .card-link {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 1px;
  transition: color 0.2s;
}

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

/* pin effect */
.project-card .pin {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-red);
  border: 2px solid var(--ink);
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* ============ CONTACT ============ */
#contact {
  padding: 5rem 0 8rem;
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 2.5rem;
  align-items: start;
}

.contact-text p {
  color: var(--ink-faint);
  margin-bottom: 1.5rem;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-link-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-main);
  font-size: 1.1rem;
  color: var(--ink);
  text-decoration: none;
  padding: 0.7rem 1rem;
  border: 1.5px solid var(--ink);
  filter: url(#sketch);
  transition: background 0.2s, color 0.2s;
  position: relative;
}

.contact-link-item:hover {
  background: var(--ink);
  color: var(--paper);
}

.contact-link-item .icon-label {
  font-size: 0.85rem;
  color: var(--pencil);
  margin-left: auto;
}

.contact-link-item:hover .icon-label { color: var(--pencil-light); }

/* doodle form area */
.doodle-note {
  position: relative;
  padding: 2rem;
  background: var(--paper-dark);
  border: 2px solid var(--ink);
  filter: url(#sketch);
}

.doodle-note::before {
  content: 'note.txt';
  position: absolute;
  top: -12px; left: 12px;
  background: var(--paper);
  padding: 0 6px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--pencil);
}

.doodle-note p {
  font-family: var(--font-main);
  font-size: 1.1rem;
  color: var(--ink-light);
  line-height: 1.9;
}

.doodle-note .email-big {
  display: block;
  margin-top: 1rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--accent);
  word-break: break-all;
}

/* ============ FOOTER ============ */
footer {
  border-top: 2px solid var(--ink);
  padding: 1.5rem 0;
  text-align: center;
  font-family: var(--font-main);
  font-size: 0.95rem;
  color: var(--pencil);
  background: var(--paper-dark);
  filter: url(#sketch);
}

footer strong { color: var(--ink); }

/* ============ CURSOR ============ */
html { cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Cpath d='M4 28 L18 4 L20 14 L28 12 Z' fill='%231a1410' stroke='%23f5f0e8' stroke-width='1'/%3E%3Ccircle cx='4' cy='28' r='2' fill='%238b7355'/%3E%3C/svg%3E") 4 28, auto; }

a, button { cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Cpath d='M4 28 L18 4 L20 14 L28 12 Z' fill='%232d5a8e' stroke='%23f5f0e8' stroke-width='1'/%3E%3Ccircle cx='4' cy='28' r='2' fill='%238b7355'/%3E%3C/svg%3E") 4 28, pointer; }

/* ============ ANIMATIONS ============ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes drawLine {
  from { stroke-dashoffset: 1000; }
  to   { stroke-dashoffset: 0; }
}

@keyframes pencilWobble {
  0%, 100% { transform: rotate(-1deg); }
  50%       { transform: rotate(1deg); }
}

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

.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* typed cursor */
.typed-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--ink);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: blink 0.9s infinite;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-doodle { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .contact-inner { grid-template-columns: 1fr; gap: 2rem; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--paper);
    border-bottom: 2px solid var(--ink);
    flex-direction: column;
    padding: 1rem 2rem;
    gap: 1rem;
  }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  #navbar { position: relative; }
  #hero { padding-top: 1rem; }
}


/* ============ DARK THEME ============ */
[data-theme="dark"] {
  --paper:        #1a1612;
  --paper-dark:   #221e19;
  --ink:          #e8e0d0;
  --ink-light:    #cfc5b2;
  --ink-faint:    #a09080;
  --pencil:       #8b7355;
  --pencil-light: #6b5840;
  --accent:       #7aa8d8;
  --accent-red:   #c96060;
  --accent-green: #5daa70;
  --sketch-line:  rgba(232, 224, 208, 0.08);
}

[data-theme="dark"] body {
  background-color: var(--paper);
}

[data-theme="dark"] .project-card {
  background: var(--paper-dark);
}

[data-theme="dark"] .sketch-box {
  background: var(--paper-dark);
}

[data-theme="dark"] .notebook-lines {
  background: var(--paper-dark);
}

[data-theme="dark"] .doodle-note {
  background: var(--paper-dark);
}

[data-theme="dark"] .doodle-note::before {
  background: var(--paper);
}

[data-theme="dark"] footer {
  background: var(--paper-dark);
}

[data-theme="dark"] #navbar {
  background: var(--paper);
}

[data-theme="dark"] .file-tree {
  background: var(--paper-dark);
}

[data-theme="dark"] .hero-doodle svg rect[fill="#ede7d4"] {
  fill: #2a2420;
}

[data-theme="dark"] html {
  cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Cpath d='M4 28 L18 4 L20 14 L28 12 Z' fill='%23e8e0d0' stroke='%231a1612' stroke-width='1'/%3E%3Ccircle cx='4' cy='28' r='2' fill='%238b7355'/%3E%3C/svg%3E") 4 28, auto;
}

/* ── Theme toggle button ── */
.theme-toggle {
  background: none;
  border: 2px solid var(--ink);
  color: var(--ink);
  cursor: pointer;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: background 0.2s, color 0.2s;
  filter: url(#sketch);
  position: relative;
}

.theme-toggle:hover {
  background: var(--ink);
  color: var(--paper);
}

/* sun icon shown in dark mode, moon in light */
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }