:root {
  --bg-color: #0a0a0a;
  --text-color: #f0f0f0;

  --primary-glow: rgba(255, 255, 255, 0.9);
  --secondary-glow: rgba(255, 255, 255, 0.6);
  --tertiary-glow: rgba(255, 255, 255, 0.4);

  --rise-speed: 1.5s;
  --ease-curve: cubic-bezier(0.25, 1, 0.5, 1);
}

/* ================== NEON THEME (toggled on <html>) ================== */
html.theme-neon {
  --bg-color: #03060a;
  --text-color: #eaffff;

  /* MUCH more neon */
  --primary-glow: rgba(0, 255, 255, 1);
  --secondary-glow: rgba(0, 255, 255, 0.75);
  --tertiary-glow: rgba(0, 255, 255, 0.45);
}

html.theme-neon .fixed-section-title,
html.theme-neon .section-heading {
  color: var(--text-color);
  text-shadow:
    0 0 6px  var(--primary-glow),
    0 0 14px var(--secondary-glow),
    0 0 28px var(--tertiary-glow);
}

html.theme-neon .tech-logo {
  filter:
    drop-shadow(0 0 6px var(--primary-glow))
    drop-shadow(0 0 14px var(--secondary-glow))
    drop-shadow(0 0 28px var(--tertiary-glow));
}

html.theme-neon .skill-icon {
  color: rgb(0, 255, 255);
  filter:
    drop-shadow(0 0 6px var(--primary-glow))
    drop-shadow(0 0 14px var(--secondary-glow));
}

html.theme-neon .skill-card:hover {
  box-shadow:
    0 0 20px rgba(0, 255, 255, 0.25),
    0 0 40px rgba(0, 255, 255, 0.15);
}

html.theme-neon .skill-overlay {
  background: rgba(0, 0, 0, 0.92);
}

html.theme-neon .skill-overlay-inner {
  border: 1px solid rgba(0, 255, 255, 0.28);
  box-shadow:
    0 0 22px rgba(0, 255, 255, 0.18),
    0 0 55px rgba(0, 255, 255, 0.08);
  background: radial-gradient(
    circle at top,
    rgba(0, 255, 255, 0.10),
    rgba(0, 0, 0, 0.94)
  );
}

html.theme-neon .skill-overlay-title {
  text-shadow:
    0 0 6px  var(--primary-glow),
    0 0 14px var(--secondary-glow),
    0 0 28px var(--tertiary-glow);
}

html.theme-neon .skill-overlay-close {
  color: var(--secondary-glow);
  text-shadow: 0 0 10px var(--secondary-glow);
}

html.theme-neon .skill-overlay-close:hover {
  background: rgba(0, 255, 255, 0.10);
  color: var(--text-color);
}

html.theme-neon .cat-base {
  filter:
    drop-shadow(0 0 10px var(--primary-glow))
    drop-shadow(0 0 25px var(--secondary-glow))
    drop-shadow(0 0 45px var(--tertiary-glow));
}

html.theme-neon .final-text {
  text-shadow:
    0 0 6px  var(--primary-glow),
    0 0 14px var(--secondary-glow),
    0 0 28px var(--tertiary-glow);
}

html.theme-neon .final-text a {
  color: rgb(0, 255, 255) !important;
  text-shadow:
    0 0 6px  var(--primary-glow),
    0 0 16px var(--secondary-glow),
    0 0 34px var(--tertiary-glow);
}

html.theme-neon .site-footer {
  color: var(--secondary-glow);
  text-shadow: 0 0 10px var(--secondary-glow);
}

/* ================== GLOBAL ================== */
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  background: var(--bg-color);
  color: var(--text-color);
  font-family: 'Roboto', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden; /* single internal scroll area */
}

#app { height: 100%; }

.app-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  height: 100%;
}

/* ================== HERO / HEADER ================== */
.hero {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  width: 100%;
  height: 100%; /* fills app-wrapper */
  text-align: center;
  padding: calc(50vh - 120px) 20px 20px;
  box-sizing: border-box;
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.8s ease-out,
    transform 0.8s ease-out,
    height var(--rise-speed) var(--ease-curve),
    padding-top var(--rise-speed) var(--ease-curve);
}

.hero.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Wrap cat icon so we can draw a ring around it */
.cat-hold-wrap {
  position: relative;
  display: inline-grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 999px;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
}

.cat-icon {
  width: 120px;
  height: 120px;
  filter:
    drop-shadow(0 0 10px var(--primary-glow))
    drop-shadow(0 0 20px var(--secondary-glow))
    drop-shadow(0 0 35px var(--tertiary-glow));
  cursor: pointer;
  transition:
    width var(--rise-speed) var(--ease-curve),
    height var(--rise-speed) var(--ease-curve),
    margin-bottom var(--rise-speed) var(--ease-curve),
    transform 120ms ease-out;
}

.cat-hold-wrap:active .cat-icon {
  transform: scale(0.98);
}

/* Hold progress ring (uses conic-gradient) */
.hold-ring {
  position: absolute;
  inset: -10px;
  border-radius: 999px;
  pointer-events: none;
  background: conic-gradient(from 90deg, var(--primary-glow) calc(var(--p) * 360deg), transparent 0);
  filter: drop-shadow(0 0 10px var(--primary-glow));
  opacity: 0.95;
}

/* Optional: reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hold-ring { filter: none; }
}

.title {
  font-family: "Stack Sans Notch", sans-serif;
  font-size: 4rem;
  letter-spacing: 2px;
  font-weight: 600;
  text-shadow:
    0 0 10px var(--primary-glow),
    0 0 18px var(--secondary-glow),
    0 0 28px var(--tertiary-glow);
  margin: 0;
}

.subtitle {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--secondary-glow);
  margin-top: 10px;
}

.explore-text {
  color: var(--secondary-glow);
  font-weight: 300;
  margin-top: 20px;
}

/* Text fade-out when cat is clicked */
.title,
.subtitle,
.explore-text {
  transition: opacity 0.35s ease-out;
}

.app-wrapper.text-hidden .title,
.app-wrapper.text-hidden .subtitle,
.app-wrapper.text-hidden .explore-text {
  opacity: 0;
  pointer-events: none;
}

/* Hero shrinks to top header, cat shrinks */
.app-wrapper.cat-rising .hero {
  height: 150px;
  padding-top: 20px;
}

.app-wrapper.cat-rising .cat-icon {
  width: 80px;
  height: 80px;
}

/* ================== TABS & CONTENT LAYOUT ================== */
.tabs-container {
  position: absolute;
  top: 140px;
  display: flex;
  gap: 30px;
  opacity: 0;
  pointer-events: none;
}

.tab {
  font-family: "Stack Sans Notch", sans-serif;
  font-size: 1.2rem;
  font-weight: 400;
  cursor: pointer;
  color: var(--secondary-glow);
  padding-bottom: 5px;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
}

.tab:hover { color: var(--primary-glow); }

.tab.active {
  color: white;
  border-bottom-color: white;
}

.fixed-section-title {
  position: absolute;
  top: 220px;
  width: 100%;
  text-align: center;
  font-family: "Stack Sans Notch", sans-serif;
  font-size: 2.8rem;
  font-weight: 500;
  margin: 0;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease-in-out;
  z-index: 20;
}

.fixed-section-title.visible { opacity: 1; }

.content-container {
  width: 100%;
  height: 0;
  overflow: hidden;
  padding: 0;
  box-sizing: border-box;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease-in-out;
}

.app-wrapper.tabs-visible .tabs-container {
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.5s ease-in-out;
}

.app-wrapper.tabs-visible .content-container {
  position: absolute;
  top: 290px;
  bottom: 0;
  width: 100%;
  height: auto;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 20px 0 40px;
  opacity: 1;
  pointer-events: auto;
}

.content-container.no-scroll { overflow: hidden !important; }

.tab-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
  min-height: 100%;
  padding: 20px;
  box-sizing: border-box;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.tab-panel.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.section-heading {
  font-family: "Stack Sans Notch", sans-serif;
  font-size: 2.8rem;
  font-weight: 500;
  margin-bottom: 50px;
  text-align: center;
}

.final-text {
  font-family: "Stack Sans Notch", sans-serif;
  font-size: 2.5rem;
  text-align: center;
  line-height: 1.4;
  max-width: 800px;
  font-weight: 500;
}

/* ================== TECHNOLOGIES GRID ================== */
.tech-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 50px;
  max-width: 900px;
}

.tech-item {
  text-align: center;
  width: 120px;
}

.tech-logo {
  width: 70px;
  height: 70px;
  filter: drop-shadow(0 0 8px rgba(255,255,255,0.5));
  transition: transform 0.3s ease;
}

.tech-item:hover .tech-logo { transform: scale(1.1); }

.tech-name {
  margin-top: 15px;
  font-size: 1rem;
  font-weight: 400;
}

@keyframes techFloat {
  0%   { transform: translateY(0px); }
  50%  { transform: translateY(-8px); }
  100% { transform: translateY(0px); }
}

.tab-panel.is-visible .tech-logo {
  animation: techFloat 3s ease-in-out infinite;
  animation-delay: calc(var(--float-offset) * 1s);
}

/* Repel movement on .tech-item */
.tech-item {
  --repel-x: 0px;
  --repel-y: 0px;
  transform: translate3d(var(--repel-x), var(--repel-y), 0);
  will-change: transform;
  transition: transform 120ms ease-out;
}

.tech-grid.is-idle .tech-item {
  transition: transform 700ms var(--ease-curve);
}

/* ================== SKILLS / PORTFOLIO GRID ================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 30px;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}

.skill-card {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 16px;
  padding: 20px 22px;
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: transform 0.3s var(--ease-curve), box-shadow 0.3s ease;
  cursor: pointer;
}

.skill-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 35px rgba(255, 255, 255, 0.12);
}

.skill-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 15px;
  color: var(--secondary-glow);
  filter: drop-shadow(0 0 8px rgba(255,255,255,0.3));
  display: flex;
  justify-content: center;
  align-items: center;
}

.skill-icon svg {
  width: 100%;
  height: 100%;
}

.skill-title {
  font-family: "Stack Sans Notch", sans-serif;
  font-size: 1.2rem;
  margin: 0 0 10px 0;
  letter-spacing: 0.5px;
  text-align: center;
}

.skill-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.95rem;
  color: var(--secondary-glow);
}

.skill-list li { margin-bottom: 6px; }

/* ================== PORTFOLIO OVERLAY ================== */
.skill-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 5, 0.92);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 50;
  padding: 20px;
  box-sizing: border-box;
}

.skill-overlay-inner {
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  background: radial-gradient(circle at top, rgba(255,255,255,0.06), rgba(0,0,0,0.95));
  border-radius: 24px;
  padding: 30px 32px;
  box-shadow: 0 0 45px rgba(0, 0, 0, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.14);
  overflow-y: auto;
  position: relative;
}

.skill-overlay-title {
  font-family: "Stack Sans Notch", sans-serif;
  font-size: 2rem;
  margin: 0 0 16px 0;
}

.skill-overlay-body p { margin: 0 0 14px 0; }
.skill-overlay-body p:last-child { margin-bottom: 0; }

.skill-overlay-close {
  position: absolute;
  top: 16px;
  right: 18px;
  background: transparent;
  border: none;
  color: var(--secondary-glow);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
}

.skill-overlay-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

/* Fade animation */
.fade-enter-active,
.fade-leave-active { transition: opacity 0.3s ease; }

.fade-enter-from,
.fade-leave-to { opacity: 0; }

.fade-enter-active .skill-overlay-inner,
.fade-leave-active .skill-overlay-inner {
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.fade-enter-from .skill-overlay-inner,
.fade-leave-to .skill-overlay-inner {
  transform: scale(0.95) translateY(15px);
}

/* ================== RESPONSIVE ================== */
@media (max-width: 1024px) {
  .skills-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .title { font-size: 3rem; }
  .subtitle { font-size: 1.2rem; }
  .final-text { font-size: 2rem; }
  .tech-grid { gap: 30px; }
  .tabs-container { top: 125px; }
  .fixed-section-title { top: 195px; font-size: 2.2rem; }
  .app-wrapper.tabs-visible .content-container { top: 255px; }
}

@media (max-width: 640px) {
  .skills-grid { grid-template-columns: 1fr; }
}

.site-footer {
  width: 100%;
  text-align: center;
  padding: 40px 20px 20px;
  font-size: 0.85rem;
  color: var(--tertiary-glow);
  font-family: 'Roboto', sans-serif;
  opacity: 0.7;
}

/* Stop iOS/Android long-press image menu + selection */
.cat-hold-wrap,
.cat-hold-wrap * {
  -webkit-touch-callout: none; /* iOS: disables “Save Image” */
  -webkit-user-select: none;
  user-select: none;
}

.cat-icon {
  width: 120px;
  height: 120px;
  display: block;
  cursor: pointer;
  transition:
    width var(--rise-speed) var(--ease-curve),
    height var(--rise-speed) var(--ease-curve),
    transform 120ms ease-out;
}

/* base white stroke */
.cat-base {
  fill: none;
  stroke: #fff;
  stroke-width: 20;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter:
    drop-shadow(0 0 10px var(--primary-glow))
    drop-shadow(0 0 20px var(--secondary-glow))
    drop-shadow(0 0 35px var(--tertiary-glow));
}

/* neon trace stroke (animated) */
.cat-trace {
  fill: none;
  stroke: rgb(0, 255, 255);
  stroke-width: 20;
  stroke-linecap: round;
  stroke-linejoin: round;

  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;

  filter:
    drop-shadow(0 0 8px rgba(0,255,255,0.95))
    drop-shadow(0 0 18px rgba(0,255,255,0.75))
    drop-shadow(0 0 36px rgba(0,255,255,0.45));

  transition: stroke-dashoffset 0.05s linear;
  pointer-events: none;
}

/* ================== DESKTOP STICKY FOOTER ================== */
@media (min-width: 769px) {
  .site-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;

    padding: 16px 20px;
    background: linear-gradient(
      to top,
      rgba(0,0,0,0.85),
      rgba(0,0,0,0)
    );

    backdrop-filter: blur(6px);
    z-index: 30;
  }

  /* Make room so content doesn't hide behind footer */
  .app-wrapper.tabs-visible .content-container {
    padding-bottom: 80px;
  }
}
