/* ============================================
   AKSHAY KRISHNA SIRIGANA - PORTFOLIO
   Combined Decker Scrapbook + Dark Theme
   Light/Dark toggle via [data-theme]
   ============================================ */

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

/* ============================================
   THEME VARIABLES
   ============================================ */

/* DARK THEME (default) */
:root,
[data-theme="dark"] {
  --paper: #1a1a1e;
  --paper-warm: #1e1e24;
  --paper-ruled: #2a2a32;
  --ink: #d4cbb3;
  --ink-soft: #a89c84;
  --ink-faint: #6b6254;
  --coral: #d46a56;
  --sky: #5b9cc4;
  --amber: #c2873a;
  --rose: #c27092;
  --mint: #5aad8a;
  --lavender: #9b8ec4;
  --border: #4a4238;
  --border-soft: #3a342c;
  --accent: #c2873a;
  --accent-warm: #d4a05c;
  --card-bg: #22222a;
  --monitor-bg: #1a2a1a;
  --monitor-text: #4ade80;
  --postit-bg: #3a3228;
  --postit-border: #5a4e3a;
  --white-card: #2a2a32;
  --dither-opacity: 0.015;
  --overlay-lines: rgba(255,255,255,0.03);
  --shadow-color: rgba(0,0,0,0.25);
  --body-bg: #131316;
  --font-pixel: 'Silkscreen', monospace;
  --font-body: 'Courier Prime', 'Courier New', monospace;
  --font-vt: 'VT323', monospace;
  --font-hand: 'Caveat', cursive;
}

/* LIGHT THEME */
[data-theme="light"] {
  --paper: #faf8f2;
  --paper-warm: #f5f0e3;
  --paper-ruled: #e8e2d4;
  --ink: #2b2b2b;
  --ink-soft: #5a5550;
  --ink-faint: #9e958a;
  --coral: #e8725c;
  --sky: #5ba4cf;
  --amber: #e6a832;
  --rose: #d4658a;
  --mint: #6dbfa0;
  --lavender: #9b8ec4;
  --border: #2b2b2b;
  --border-soft: #c4bba8;
  --accent: #e8725c;
  --accent-warm: #d4658a;
  --card-bg: #fff;
  --monitor-bg: #1a2a1a;
  --monitor-text: #4ade80;
  --postit-bg: #fef3b5;
  --postit-border: #e8d96a;
  --white-card: #fff;
  --dither-opacity: 0;
  --overlay-lines: rgba(180,170,155,0.18);
  --shadow-color: rgba(0,0,0,0.06);
  --body-bg: #3a3632;
}

html, body { height: 100%; font-size: 17px; }

body {
  font-family: var(--font-body);
  background: var(--body-bg);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  overflow: hidden;
  transition: background 0.3s;
}

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

/* ============================================
   WINDOW FRAME
   ============================================ */
.decker-window {
  width: 100%;
  height: 100vh;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  border: 3px solid var(--border);
  overflow: hidden;
  position: relative;
  transition: background 0.3s, border-color 0.3s;
}

/* Notebook lines overlay (light) / dither (dark) */
.decker-window::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  transition: background 0.3s;
}

[data-theme="light"] .decker-window::before {
  background:
    repeating-linear-gradient(
      transparent,
      transparent 31px,
      var(--overlay-lines) 31px,
      var(--overlay-lines) 32px
    );
}

[data-theme="dark"] .decker-window::before {
  background-image: url("data:image/svg+xml,%3Csvg width='4' height='4' viewBox='0 0 4 4' xmlns='http://www.w3.org/2000/svg'%3E%3Crect x='0' y='0' width='1' height='1' fill='%23ffffff' opacity='0.015'/%3E%3Crect x='2' y='2' width='1' height='1' fill='%23ffffff' opacity='0.015'/%3E%3C/svg%3E");
}

/* ============================================
   TITLE BAR
   ============================================ */
.title-bar {
  display: flex;
  align-items: center;
  padding: 7px 14px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  gap: 12px;
  flex-shrink: 0;
  z-index: 10;
  position: relative;
  transition: background 0.3s, color 0.3s;
}

[data-theme="dark"] .title-bar {
  background: #0e0e11;
}

.title-bar-buttons {
  display: flex;
  gap: 7px;
}

.win-btn {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  display: block;
}

.win-close { background: #e8725c; }
.win-min { background: #e6a832; }
.win-max { background: #6dbfa0; }

.title-bar-text {
  letter-spacing: 0.05em;
  opacity: 0.7;
  flex: 1;
}

/* Theme Toggle Button */
.theme-toggle {
  background: none;
  border: 2px solid rgba(255,255,255,0.2);
  color: var(--paper);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 3px 10px;
  border-radius: 4px;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-pixel);
}

.theme-toggle:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.35);
}

[data-theme="dark"] .theme-toggle {
  border-color: rgba(255,255,255,0.15);
  color: #d4cbb3;
}

/* ============================================
   MENU BAR
   ============================================ */
.menu-bar {
  display: flex;
  align-items: center;
  background: var(--paper-warm);
  border-bottom: 2px solid var(--border);
  font-family: var(--font-pixel);
  font-size: 0.78rem;
  z-index: 10;
  position: relative;
  flex-shrink: 0;
  flex-wrap: wrap;
  transition: background 0.3s, border-color 0.3s;
}

.menu-item {
  padding: 10px 18px;
  cursor: pointer;
  border-right: 1px solid var(--border-soft);
  user-select: none;
  color: var(--ink-soft);
  transition: all 0.08s;
  white-space: nowrap;
}

.menu-item:hover { background: var(--ink); color: var(--paper); }
.menu-item.active { background: var(--accent); color: #fff; }

[data-theme="dark"] .menu-item.active {
  color: #0e0e11;
}

.menu-app {
  font-weight: 700;
  color: var(--ink);
  border-right: 2px solid var(--border);
}

.menu-resume {
  margin-left: auto;
  border-right: none;
  border-left: 1px solid var(--border-soft);
  font-weight: 700;
  color: var(--accent);
}

.menu-resume:hover {
  background: var(--accent);
  color: #fff;
}

/* ============================================
   BODY LAYOUT
   ============================================ */
.decker-body {
  display: flex;
  flex: 1;
  overflow: hidden;
  z-index: 1;
  position: relative;
}

.canvas-area {
  flex: 1;
  background: var(--paper);
  overflow-y: auto;
  overflow-x: hidden;
  transition: background 0.3s;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  display: none;
}

.card.active {
  display: block;
  animation: flipIn 0.25s ease-out;
}

@keyframes flipIn {
  0% { opacity: 0; transform: rotateY(-8deg) scale(0.97); }
  100% { opacity: 1; transform: rotateY(0) scale(1); }
}

.card-content {
  padding: 36px 48px;
  max-width: 960px;
  margin: 0 auto;
}

/* ============================================
   WASHI TAPE
   ============================================ */
.tape {
  width: 90px;
  height: 22px;
  position: absolute;
  top: -8px;
  left: 20px;
  opacity: 0.75;
  z-index: 2;
  border-radius: 1px;
}

.tape-pink { background: rgba(212, 101, 138, 0.45); }
.tape-blue { background: rgba(91, 164, 207, 0.45); }
.tape-yellow { background: rgba(230, 168, 50, 0.45); }
.tape-coral { background: rgba(232, 114, 92, 0.45); }

.tape-tilt-left { transform: rotate(-3deg); }
.tape-tilt-right { transform: rotate(2deg); }

[data-theme="dark"] .tape { opacity: 0.5; }

/* ============================================
   SECTION HEADINGS
   ============================================ */
.section-heading {
  position: relative;
  margin-bottom: 28px;
}

.card-title {
  font-family: var(--font-pixel);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.heading-underline {
  height: 3px;
  margin-top: 8px;
  background: linear-gradient(90deg, var(--coral), var(--amber), var(--sky));
  border-radius: 2px;
  width: 100%;
}

[data-theme="dark"] .heading-underline {
  background: linear-gradient(90deg, var(--accent), var(--accent-warm), var(--sky));
}

/* Handwritten style */
.handwritten {
  font-family: var(--font-hand);
  font-size: 1.25rem;
  color: var(--ink-soft);
}

.handwritten-note {
  font-family: var(--font-hand);
  font-size: 1.4rem;
  color: var(--rose);
  margin-top: 8px;
}

/* ============================================
   HOME CARD
   ============================================ */
.home-card { padding-top: 20px; }

.home-scene {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 36px;
  align-items: center;
  min-height: calc(100vh - 240px);
}

/* CSS Pixel Desk Scene */
.desk-scene {
  position: relative;
  width: 200px;
  height: 200px;
}

.desk-surface {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 200px;
  height: 8px;
  background: var(--ink);
  border-radius: 2px;
}

.desk-monitor {
  position: absolute;
  bottom: 40px;
  left: 40px;
  width: 110px;
  height: 78px;
  background: var(--ink);
  border-radius: 4px;
  padding: 6px;
}

.monitor-screen {
  width: 100%;
  height: 100%;
  background: var(--monitor-bg);
  border-radius: 2px;
  padding: 8px;
  font-family: var(--font-vt);
  font-size: 0.85rem;
  color: var(--monitor-text);
  line-height: 1.4;
  overflow: hidden;
}

.screen-cursor {
  animation: blink 0.8s step-end infinite;
  color: var(--monitor-text);
}

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

.monitor-stand {
  width: 20px;
  height: 16px;
  background: var(--ink);
  margin: 0 auto;
  clip-path: polygon(20% 0, 80% 0, 100% 100%, 0% 100%);
}

.desk-plant {
  position: absolute;
  bottom: 8px;
  right: 10px;
}

.plant-pot {
  width: 24px;
  height: 18px;
  background: var(--coral);
  border-radius: 0 0 4px 4px;
  margin: 0 auto;
}

.plant-stem {
  width: 3px;
  height: 20px;
  background: var(--mint);
  margin: 0 auto;
  margin-top: -2px;
}

.plant-leaf {
  width: 14px;
  height: 8px;
  background: var(--mint);
  border-radius: 50%;
  position: absolute;
}

.plant-leaf-1 { top: -30px; left: 14px; transform: rotate(-20deg); }
.plant-leaf-2 { top: -22px; left: 0; transform: rotate(30deg); }
.plant-leaf-3 { top: -38px; left: 6px; transform: rotate(-5deg); }

.desk-coffee {
  position: absolute;
  bottom: 8px;
  left: 8px;
  width: 20px;
  height: 16px;
  background: var(--amber);
  border-radius: 0 0 3px 3px;
  border-top: 3px solid var(--ink);
}

.coffee-steam {
  font-size: 0.7rem;
  color: var(--ink-faint);
  text-align: center;
  animation: steam 1.5s ease-in-out infinite;
  position: absolute;
  top: -14px;
  left: 5px;
}

@keyframes steam {
  0%, 100% { opacity: 0.3; transform: translateY(0); }
  50% { opacity: 0.8; transform: translateY(-4px); }
}

/* Home text */
.home-text {
  position: relative;
}

.title-handwritten {
  font-family: var(--font-hand);
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 700;
  color: var(--ink);
  line-height: 1;
}

.title-pixel {
  font-family: var(--font-pixel);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  color: var(--coral);
  line-height: 1.1;
  margin-top: 4px;
}

[data-theme="dark"] .title-pixel {
  color: var(--accent);
}

.torn-edge {
  height: 4px;
  margin: 14px 0;
  background: url("data:image/svg+xml,%3Csvg width='20' height='4' viewBox='0 0 20 4' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 2 Q5 0 10 2 Q15 4 20 2' stroke='%23c4bba8' fill='none' stroke-width='1'/%3E%3C/svg%3E") repeat-x;
}

[data-theme="dark"] .torn-edge {
  opacity: 0.4;
}

.subtitle-typed {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--ink-soft);
}

.school-stamp {
  margin-top: 6px;
}

.stamp-border {
  display: inline-block;
  padding: 5px 16px;
  border: 2px solid var(--ink);
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: rotate(-1deg);
}

.spacer-sm { height: 16px; }

.tagline-sticker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: var(--sky);
  color: #fff;
  font-family: var(--font-pixel);
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 2px;
  transform: rotate(-0.5deg);
  letter-spacing: 0.03em;
}

[data-theme="dark"] .tagline-sticker {
  background: var(--accent);
}

.sticker-dot { font-size: 0.5rem; opacity: 0.6; }

.status-postit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  background: var(--postit-bg);
  border-bottom: 3px solid var(--postit-border);
  font-family: var(--font-hand);
  font-size: 1.2rem;
  color: var(--ink);
  transform: rotate(1deg);
  box-shadow: 2px 2px 0 var(--shadow-color);
}

.blink-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  background: #6abf4a;
  border-radius: 50%;
  animation: blink 1.2s step-start infinite;
}

.card-footer-hint {
  text-align: center;
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  color: var(--ink-faint);
  margin-top: 24px;
  padding-top: 14px;
  border-top: 1px dashed var(--border-soft);
}

/* ============================================
   ABOUT CARD
   ============================================ */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 28px;
}

.about-text p {
  font-size: 1.05rem;
  line-height: 1.9;
  margin-bottom: 16px;
  color: var(--ink-soft);
}

.about-text strong { color: var(--ink); }

.notebook-lines {
  background: repeating-linear-gradient(
    transparent, transparent 29px,
    var(--overlay-lines) 29px, var(--overlay-lines) 30px
  );
  padding-top: 6px;
}

/* Polaroid card */
.polaroid-card {
  background: var(--white-card);
  border: 1px solid var(--border-soft);
  padding: 18px 18px 12px;
  box-shadow: 3px 3px 0 var(--shadow-color);
  transform: rotate(1.5deg);
  margin-bottom: 18px;
  transition: background 0.3s, border-color 0.3s;
}

.polaroid-content {
  padding: 8px 0;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  padding: 7px 0;
  font-size: 0.92rem;
  border-bottom: 1px dotted var(--border-soft);
}

.detail-row:last-child { border-bottom: none; }
.detail-label { color: var(--ink-faint); font-size: 0.88rem; }
.detail-value { font-weight: 700; color: var(--ink); font-size: 0.88rem; }

.polaroid-caption {
  text-align: center;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--border-soft);
  font-size: 1.2rem;
}

/* Strength badges */
.strength-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  padding: 7px 16px;
  font-family: var(--font-pixel);
  font-size: 0.68rem;
  font-weight: 700;
  color: #fff;
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-coral { background: var(--coral); }
.badge-sky { background: var(--sky); }
.badge-amber { background: var(--amber); }

/* ============================================
   SKILLS CARD - Sticker Wall
   ============================================ */
.skills-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.skill-column {
  border: 2px solid var(--border-soft);
  padding: 20px;
  background: var(--paper-warm);
  border-radius: 2px;
  transition: background 0.3s, border-color 0.3s;
}

.skill-column-title {
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}

[data-theme="dark"] .skill-column-title {
  color: var(--accent);
}

.sticker-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.sticker {
  padding: 7px 14px;
  background: var(--white-card);
  border: 2px solid var(--border);
  font-family: var(--font-pixel);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--ink);
  transition: all 0.1s;
  cursor: default;
}

.sticker:hover {
  background: var(--coral);
  color: #fff;
  border-color: var(--coral);
  transform: rotate(-2deg) scale(1.05);
}

[data-theme="dark"] .sticker:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #0e0e11;
}

.sticker-lg {
  background: var(--paper-warm);
  border-width: 2px;
}

/* ============================================
   PROJECT CARD
   ============================================ */

/* Project Tabs */
.project-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 20px;
  border: 2px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.project-tab {
  flex: 1;
  padding: 12px 18px;
  font-family: var(--font-pixel);
  font-size: 0.78rem;
  font-weight: 700;
  background: var(--paper-warm);
  color: var(--ink-soft);
  border: none;
  border-right: 1px solid var(--border-soft);
  cursor: pointer;
  transition: all 0.12s;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.project-tab:last-child { border-right: none; }

.project-tab:hover {
  background: var(--ink);
  color: var(--paper);
}

.project-tab.active {
  background: var(--accent);
  color: #fff;
}

[data-theme="dark"] .project-tab.active {
  color: #0e0e11;
}

/* Project panels */
.project-panel {
  display: none !important;
}

.project-panel.active {
  display: block !important;
}

.project-postcard {
  border: 3px solid var(--border);
  background: var(--white-card);
  box-shadow: 4px 4px 0 var(--shadow-color);
  transition: background 0.3s, border-color 0.3s;
}

.postcard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 26px 16px;
  border-bottom: 2px dashed var(--border-soft);
  gap: 18px;
}

/* Postmark */
.postmark-circle {
  width: 72px;
  height: 72px;
  border: 3px solid var(--ink);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink);
  transform: rotate(-12deg);
}

.postcard-title-area {
  text-align: center;
  flex: 1;
}

.project-name-big {
  font-family: var(--font-pixel);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--ink);
}

.project-subtitle {
  font-size: 1rem;
  color: var(--ink-soft);
  margin-top: 2px;
}

/* Stamp */
.postcard-stamp {
  width: 78px;
  height: 88px;
  border: 3px solid var(--coral);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-pixel);
  font-size: 0.62rem;
  color: var(--coral);
  text-transform: uppercase;
  background: repeating-linear-gradient(
    45deg, transparent, transparent 3px,
    rgba(232,114,92,0.06) 3px, rgba(232,114,92,0.06) 6px
  );
  flex-shrink: 0;
}

[data-theme="dark"] .postcard-stamp {
  border-color: var(--accent);
  color: var(--accent);
}

.stamp-val { font-weight: 700; font-size: 0.68rem; margin-top: 3px; }

.project-quote {
  text-align: center;
  padding: 16px 26px;
  font-size: 1.3rem;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--border-soft);
}

/* Metrics */
.metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 2px solid var(--border-soft);
}

.metric-badge {
  padding: 16px 10px;
  text-align: center;
  border-right: 1px solid var(--border-soft);
  transition: background 0.1s;
}

.metric-badge:last-child { border-right: none; }

.metric-badge:hover {
  background: var(--paper);
}

.metric-num {
  display: block;
  font-family: var(--font-pixel);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}

.metric-lbl {
  display: block;
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--ink-faint);
  text-transform: uppercase;
  margin-top: 3px;
}

/* Project inner */
.project-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--border-soft);
}

.project-desc {
  padding: 22px 26px;
  border-right: 1px solid var(--border-soft);
}

.project-desc p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-soft);
  margin-bottom: 16px;
}

.flow-pipeline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-family: var(--font-pixel);
  font-size: 0.62rem;
}

.pipe-step {
  padding: 6px 12px;
  border: 2px solid var(--border);
  background: var(--paper-warm);
  color: var(--ink);
}

.pipe-step b {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  width: 18px;
  height: 18px;
  line-height: 18px;
  text-align: center;
  margin-right: 4px;
  font-size: 0.55rem;
}

.pipe-join { color: var(--ink-faint); font-size: 0.9rem; }

.project-stack-card {
  padding: 22px 26px;
}

.stack-row {
  padding: 8px 0;
  font-size: 0.95rem;
  border-bottom: 1px dotted var(--border-soft);
  color: var(--ink-soft);
}

.stack-row:last-child { border-bottom: none; }

.stack-key {
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent);
}

/* Project actions */
.project-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  padding: 20px 26px;
  flex-wrap: wrap;
}

.deck-btn {
  padding: 10px 22px;
  font-family: var(--font-pixel);
  font-size: 0.72rem;
  font-weight: 700;
  border: 2px solid var(--border);
  background: var(--white-card);
  color: var(--ink);
  cursor: pointer;
  transition: all 0.08s;
}

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

.deck-btn-filled {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

[data-theme="dark"] .deck-btn-filled {
  color: #0e0e11;
}

.deck-btn-filled:hover {
  background: var(--accent-warm);
  border-color: var(--accent-warm);
}

.team-credit {
  text-align: center;
  padding: 10px 26px 18px;
  font-size: 1.15rem;
  color: var(--ink-faint);
}

/* ============================================
   INTERESTS - Corkboard
   ============================================ */
.interest-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.interest-pin {
  background: var(--white-card);
  border: 1px solid var(--border-soft);
  padding: 24px 20px 20px;
  position: relative;
  box-shadow: 2px 2px 0 var(--shadow-color);
  transition: transform 0.15s, background 0.3s, border-color 0.3s;
}

.interest-pin:hover {
  transform: translateY(-3px);
  box-shadow: 3px 5px 0 var(--shadow-color);
}

.interest-wide { grid-column: 1 / -1; }

.pin-tack {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 2px 3px rgba(0,0,0,0.15);
}

.pin-red { background: var(--coral); }
.pin-blue { background: var(--sky); }
.pin-yellow { background: var(--amber); }

.interest-pin h3 {
  font-family: var(--font-pixel);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--ink);
}

.interest-pin p {
  font-size: 1rem;
  color: var(--ink-soft);
  line-height: 1.7;
}

.divider-doodle {
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.9rem;
  margin: 20px 0;
  letter-spacing: 0.5em;
}

.sub-heading {
  font-size: 1.6rem;
  margin-bottom: 16px;
  color: var(--ink-soft);
}

/* Ticket-style hobbies */
.hobby-tickets {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.ticket {
  display: flex;
  border: 2px solid var(--border);
  background: var(--white-card);
  overflow: hidden;
  transition: transform 0.1s, background 0.3s;
}

.ticket:hover { transform: rotate(-1deg); }

.ticket-stub {
  width: 14px;
  background: var(--amber);
  border-right: 2px dashed var(--border);
}

[data-theme="dark"] .ticket-stub {
  background: var(--accent);
}

.ticket-body {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
}

.ticket-icon { font-size: 1.4rem; }

.ticket-label {
  font-family: var(--font-pixel);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ink);
}

/* Chess FIDE link ticket */
.ticket-link {
  text-decoration: none;
  cursor: pointer;
}

.ticket-link:hover {
  transform: rotate(-1deg) scale(1.03);
  border-color: var(--accent);
}

.ticket-link:hover .ticket-stub {
  background: var(--coral);
}

.ticket-cta {
  font-family: var(--font-hand);
  font-size: 1.1rem;
  color: var(--coral);
  margin-left: auto;
  animation: ctaBounce 1.5s ease-in-out infinite;
}

[data-theme="dark"] .ticket-cta {
  color: var(--accent-warm);
}

@keyframes ctaBounce {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(4px); }
}

/* ============================================
   CONTACT - Letter Style
   ============================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.contact-letter {
  padding: 22px;
  background: var(--white-card);
  border: 1px solid var(--border-soft);
  box-shadow: 2px 2px 0 var(--shadow-color);
  transition: background 0.3s, border-color 0.3s;
}

[data-theme="light"] .contact-letter {
  background: repeating-linear-gradient(
    transparent, transparent 29px,
    rgba(180,170,155,0.2) 29px, rgba(180,170,155,0.2) 30px
  ), #fff;
}

.contact-letter p {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--ink-soft);
  margin-bottom: 14px;
}

.letter-signoff { font-size: 1.4rem; color: var(--coral); }
[data-theme="dark"] .letter-signoff { color: var(--accent); }

.letter-sig {
  font-family: var(--font-hand);
  font-size: 1.7rem;
  color: var(--ink);
  margin-top: 6px;
}

.contact-envelopes {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.envelope-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: var(--white-card);
  border: 2px solid var(--border);
  transition: all 0.08s;
  color: var(--ink);
}

.envelope-link:hover {
  background: var(--sky);
  color: #fff;
  border-color: var(--sky);
}

[data-theme="dark"] .envelope-link:hover {
  background: var(--accent);
  color: #0e0e11;
  border-color: var(--accent);
}

.envelope-resume {
  border-color: var(--accent);
}

.envelope-resume .env-label {
  color: var(--accent);
}

.env-icon { font-size: 1.4rem; width: 26px; text-align: center; }

.env-label {
  display: block;
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.7;
}

.env-value { font-size: 0.95rem; font-weight: 600; }

/* ============================================
   SIDEBAR - Sticker Sheet
   ============================================ */
.sidebar-stickers {
  width: 60px;
  background: var(--paper-warm);
  border-left: 2px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 4px;
  gap: 5px;
  flex-shrink: 0;
  transition: background 0.3s, border-color 0.3s;
}

.sidebar-title {
  font-family: var(--font-hand);
  font-size: 0.85rem;
  color: var(--ink-faint);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.15em;
  margin-bottom: 8px;
  transform: rotate(180deg);
}

.sidebar-item {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.15s;
  background: var(--white-card);
  border: 2px solid var(--border-soft);
}

.sidebar-item:hover {
  transform: scale(1.15) rotate(-5deg);
  border-color: var(--coral);
}

[data-theme="dark"] .sidebar-item:hover {
  border-color: var(--accent);
}

.sb-star { color: var(--amber); }
.sb-heart { color: var(--coral); }
.sb-bolt { color: var(--amber); }
.sb-flower { color: var(--rose); }
.sb-music { color: var(--lavender); }
.sb-code { color: var(--sky); font-family: var(--font-pixel); font-size: 0.65rem; font-weight: 700; }

/* Cute sticker click animations */
.sidebar-item.anim-spin {
  animation: stickerSpin 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.sidebar-item.anim-heartbeat {
  animation: stickerHeartbeat 0.8s ease-in-out;
}

.sidebar-item.anim-jelly {
  animation: stickerJelly 0.6s ease;
}

.sidebar-item.anim-float {
  animation: stickerFloat 0.9s ease-out;
}

.sidebar-item.anim-wiggle {
  animation: stickerWiggle 0.5s ease;
}

.sidebar-item.anim-pop {
  animation: stickerPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes stickerSpin {
  0% { transform: scale(1) rotate(0deg); }
  30% { transform: scale(1.4) rotate(180deg); }
  60% { transform: scale(0.9) rotate(360deg); }
  80% { transform: scale(1.1) rotate(360deg); }
  100% { transform: scale(1) rotate(360deg); }
}

@keyframes stickerHeartbeat {
  0% { transform: scale(1); }
  15% { transform: scale(1.35); }
  30% { transform: scale(0.95); }
  45% { transform: scale(1.25); }
  60% { transform: scale(1); }
  75% { transform: scale(1.12); }
  100% { transform: scale(1); }
}

@keyframes stickerJelly {
  0% { transform: scale(1, 1); }
  20% { transform: scale(1.3, 0.7); }
  40% { transform: scale(0.8, 1.2); }
  60% { transform: scale(1.15, 0.85); }
  80% { transform: scale(0.95, 1.05); }
  100% { transform: scale(1, 1); }
}

@keyframes stickerFloat {
  0% { transform: translateY(0) scale(1); opacity: 1; }
  40% { transform: translateY(-18px) scale(1.2) rotate(-10deg); }
  70% { transform: translateY(-6px) scale(1.05) rotate(5deg); }
  100% { transform: translateY(0) scale(1) rotate(0deg); opacity: 1; }
}

@keyframes stickerWiggle {
  0% { transform: rotate(0deg); }
  15% { transform: rotate(-18deg) scale(1.15); }
  30% { transform: rotate(14deg) scale(1.15); }
  45% { transform: rotate(-10deg); }
  60% { transform: rotate(8deg); }
  75% { transform: rotate(-4deg); }
  100% { transform: rotate(0deg) scale(1); }
}

@keyframes stickerPop {
  0% { transform: scale(1); }
  20% { transform: scale(0.6); }
  50% { transform: scale(1.4) rotate(15deg); }
  70% { transform: scale(0.95) rotate(-5deg); }
  100% { transform: scale(1) rotate(0deg); }
}

/* Sticker fanfare particles */
.sticker-particle {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  font-size: 1rem;
  animation: particleBurst 0.8s ease-out forwards;
}

@keyframes particleBurst {
  0% { opacity: 1; transform: translate(0, 0) scale(1); }
  100% { opacity: 0; transform: translate(var(--px), var(--py)) scale(0.3) rotate(var(--pr)); }
}

/* Sticker glow ring on click */
.sticker-glow {
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 3px solid var(--coral);
  animation: glowRing 0.6s ease-out forwards;
}

[data-theme="dark"] .sticker-glow {
  border-color: var(--accent);
}

@keyframes glowRing {
  0% { opacity: 0.9; transform: translate(-50%, -50%) scale(0.5); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(2.5); }
}

/* ============================================
   BOTTOM BAR
   ============================================ */
.bottom-bar {
  display: flex;
  align-items: center;
  padding: 8px 14px;
  background: var(--paper-warm);
  border-top: 2px solid var(--border);
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  z-index: 10;
  position: relative;
  flex-shrink: 0;
  gap: 10px;
  flex-wrap: wrap;
  transition: background 0.3s, border-color 0.3s;
}

.bar-btn {
  padding: 7px 16px;
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  border: 2px solid var(--border);
  background: var(--white-card);
  color: var(--ink);
  cursor: pointer;
  transition: all 0.08s;
}

.bar-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
[data-theme="dark"] .bar-btn:hover { color: #0e0e11; }
.bar-btn:active { transform: translate(1px,1px); }

.bar-counter { font-weight: 700; color: var(--ink); margin: 0 4px; }
.bar-sep { color: var(--border-soft); }
.bar-label { color: var(--ink-faint); }
.bar-timestamp { margin-left: auto; color: var(--ink-faint); }

/* ============================================
   SMOOTH TRANSITIONS
   ============================================ */
.card-content, .card-title, .about-text p, .interest-pin p, .contact-letter p,
.project-desc p, .stack-row, .detail-row, .handwritten, .handwritten-note,
.envelope-link, .sticker, .badge, .metric-badge, .ticket,
.project-tab, .project-postcard, .project-quote {
  transition: color 0.3s, background 0.3s, border-color 0.3s;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .card-content { padding: 24px 18px; }
  .home-scene { grid-template-columns: 1fr; text-align: center; gap: 14px; min-height: auto; }
  .desk-scene { margin: 0 auto; }
  .home-text { text-align: center; }
  .status-postit { margin: 0 auto; }
  .about-layout { grid-template-columns: 1fr; }
  .skills-board { grid-template-columns: 1fr; }
  .project-inner { grid-template-columns: 1fr; }
  .project-desc { border-right: none; border-bottom: 1px solid var(--border-soft); }
  .metrics-strip { grid-template-columns: 1fr 1fr; }
  .interest-board { grid-template-columns: 1fr; }
  .interest-wide { grid-column: auto; }
  .hobby-tickets { flex-direction: column; }
  .contact-layout { grid-template-columns: 1fr; }
  .sidebar-stickers { display: none; }
  .menu-bar { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; }
  .flow-pipeline { flex-direction: column; }
  .pipe-join { transform: rotate(90deg); }
  .postcard-header { flex-direction: column; text-align: center; }
  .postmark-circle { margin: 0 auto; }
  .postcard-stamp { display: none; }
  .tape { display: none; }
  .project-tabs { flex-direction: column; }
}

@media (max-width: 480px) {
  .card-content { padding: 18px 14px; }
  .title-handwritten { font-size: 1.9rem; }
  .title-pixel { font-size: 1.4rem; }
  .card-title { font-size: 1.15rem; }
  .project-name-big { font-size: 1.6rem; }
  .project-actions { flex-direction: column; }
  .deck-btn { text-align: center; }
  .desk-scene { transform: scale(0.85); }
}