/* ================================================================
   THE MELTING BOT — Design Tokens & Styles
   ================================================================ */

:root {
  /* Typography */
  --font-logo:    'Orbitron', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Colors — Midnight Neon */
  --color-bg:        #0D0D0D;
  --color-surface:   #1A1A1A;
  --color-surface-2: #222222;
  --color-border:    rgba(255, 255, 255, 0.08);
  --color-primary:   #00F0FF;
  --color-secondary: #7B61FF;
  --color-text:      #E8E8E8;
  --color-text-muted: #888888;
  --color-text-faint: #555555;

  /* Glow */
  --glow-primary:   0 0 20px rgba(0, 240, 255, 0.3);
  --glow-secondary: 0 0 20px rgba(123, 97, 255, 0.3);

  /* Misc */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --content-default: 960px;
  --content-wide: 1200px;
}


/* ================================================================
   LOADING SCREEN
   ================================================================ */

.loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.loader.fade-out {
  opacity: 0;
  pointer-events: none;
}

.loader-bot {
  width: 80px;
  height: 100px;
  opacity: 0;
  animation: loaderFadeIn 0.6s ease-out 0.2s forwards;
}

.loader-bot-svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 20px rgba(0, 240, 255, 0.3));
}

/* Bot fades in, then melts downward and dissolves */
@keyframes loaderFadeIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.loader-bot.melting {
  animation: loaderMelt 1.2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes loaderMelt {
  0% {
    opacity: 1;
    transform: translateY(0) scaleY(1) scaleX(1);
    filter: drop-shadow(0 0 20px rgba(0, 240, 255, 0.3));
  }
  30% {
    opacity: 1;
    transform: translateY(10px) scaleY(1.08) scaleX(0.96);
    filter: drop-shadow(0 0 30px rgba(0, 240, 255, 0.4));
  }
  60% {
    opacity: 0.7;
    transform: translateY(40px) scaleY(1.3) scaleX(0.8);
    filter: drop-shadow(0 0 40px rgba(0, 240, 255, 0.2)) blur(1px);
  }
  100% {
    opacity: 0;
    transform: translateY(80px) scaleY(1.6) scaleX(0.4);
    filter: drop-shadow(0 0 0px rgba(0, 240, 255, 0)) blur(4px);
  }
}

/* Drips in the loader animate independently */
.loader-drip {
  stroke-dasharray: 60;
  stroke-dashoffset: 60;
  animation: loaderDripDraw 0.8s ease-out 0.5s forwards;
}

.loader-drip-2 { animation-delay: 0.65s; }
.loader-drip-3 { animation-delay: 0.8s; }

@keyframes loaderDripDraw {
  to { stroke-dashoffset: 0; }
}


/* ================================================================
   CUSTOM CURSOR
   ================================================================ */

.cursor {
  position: fixed;
  top: 0; left: 0;
  width: 12px; height: 12px;
  background: var(--color-primary);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 150ms ease, height 150ms ease, background 150ms ease;
  mix-blend-mode: screen;
}

.cursor-glow {
  position: fixed;
  top: 0; left: 0;
  width: 40px; height: 40px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 300ms ease, height 300ms ease;
}

.cursor.hovering {
  width: 24px;
  height: 24px;
  background: rgba(0, 240, 255, 0.5);
}
.cursor-glow.hovering {
  width: 60px;
  height: 60px;
}

@media (hover: none) {
  .cursor, .cursor-glow { display: none; }
  html, body, button, a { cursor: auto; }
}


/* ================================================================
   ANIMATED GRID BACKGROUND (Canvas)
   ================================================================ */

.grid-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 20%, transparent 100%);
}


/* ================================================================
   HERO SECTION
   ================================================================ */

.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
}

.hero-logo {
  opacity: 0;
  animation: fadeSlideUp 1s var(--ease-out) 0.3s forwards;
}

/* Delay hero animations until loader completes */
body.loading .hero-logo,
body.loading .hero-tagline,
body.loading .hero-scroll-indicator {
  animation-play-state: paused;
}

.logo-svg {
  width: clamp(240px, 50vw, 420px);
  height: auto;
  filter: drop-shadow(0 0 30px rgba(0, 240, 255, 0.2));
}

/* Drip animations on the logo */
.drip-1 { animation: drip 3s ease-in-out infinite; }
.drip-2 { animation: drip 3.5s ease-in-out 0.5s infinite; }
.drip-3 { animation: drip 2.8s ease-in-out 1s infinite; }

@keyframes drip {
  0%, 100% { opacity: 0.4; transform: translateY(0); }
  50% { opacity: 0.8; transform: translateY(4px); }
}

.hero-tagline {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 300;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  max-width: 500px;
  opacity: 0;
  animation: fadeSlideUp 1s var(--ease-out) 0.6s forwards;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  opacity: 0;
  animation: fadeSlideUp 1s var(--ease-out) 1s forwards;
  z-index: 3;
  transition: opacity 0.3s ease;
}

.scroll-text {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-primary), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}


/* ================================================================
   SECTIONS — SHARED
   ================================================================ */

.section {
  position: relative;
  z-index: 2;
  padding: clamp(var(--space-16), 8vw, var(--space-32)) var(--space-6);
}

.section-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}

.section-heading {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-12);
  position: relative;
}

.heading-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--color-primary);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-3);
  text-transform: uppercase;
}


/* ================================================================
   ABOUT SECTION
   ================================================================ */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}

.about-text p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.stat-item {
  text-align: center;
  padding: var(--space-6) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.stat-number-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0;
}

.stat-suffix {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.stat-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
  letter-spacing: 0.05em;
}


/* ================================================================
   SKILLS SECTION
   ================================================================ */

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  transition: border-color var(--transition-interactive),
              color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

.skill-tag:hover {
  border-color: rgba(0, 240, 255, 0.3);
  color: var(--color-primary);
  box-shadow: var(--glow-primary);
}


/* ================================================================
   PROJECT CARDS — GLASSMORPHISM
   ================================================================ */

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.glass-card {
  position: relative;
  background: rgba(26, 26, 26, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
  transition: transform 300ms var(--ease-out),
              border-color 300ms var(--ease-out),
              box-shadow 300ms var(--ease-out);
}

.glass-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 240, 255, 0.15);
  box-shadow: 0 8px 32px rgba(0, 240, 255, 0.08),
              0 0 0 1px rgba(0, 240, 255, 0.06);
}

.card-glow {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 400ms ease;
  background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(0, 240, 255, 0.06), transparent 60%);
  pointer-events: none;
}

.glass-card:hover .card-glow {
  opacity: 1;
}

.card-content {
  position: relative;
  z-index: 1;
  padding: var(--space-8);
}

.card-icon {
  margin-bottom: var(--space-4);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.card-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.card-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}


/* ================================================================
   CONTACT SECTION — Enhanced Button
   ================================================================ */

.contact {
  text-align: center;
  padding-bottom: var(--space-32);
}

.contact-text {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

.contact-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-bg);
  background: var(--color-primary);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  text-decoration: none;
  letter-spacing: 0.05em;
  overflow: hidden;
  z-index: 1;
  transition: transform 300ms var(--ease-out),
              box-shadow 300ms var(--ease-out);
  /* Idle breathing glow */
  animation: btnBreathe 3s ease-in-out infinite;
}

@keyframes btnBreathe {
  0%, 100% {
    box-shadow: 0 0 12px rgba(0, 240, 255, 0.2),
                0 0 4px rgba(0, 240, 255, 0.1);
  }
  50% {
    box-shadow: 0 0 24px rgba(0, 240, 255, 0.35),
                0 0 8px rgba(0, 240, 255, 0.2);
  }
}

/* Ripple ring — expands outward on hover */
.btn-glow-ring {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  pointer-events: none;
  z-index: 0;
}

.btn-glow-ring::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: var(--radius-full);
  border: 2px solid rgba(0, 240, 255, 0.3);
  opacity: 0;
  transform: scale(1);
  transition: opacity 300ms ease, transform 300ms ease;
}

.btn-glow-ring::after {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(0, 240, 255, 0.15);
  opacity: 0;
  transform: scale(1);
  transition: opacity 400ms ease 50ms, transform 400ms ease 50ms;
}

.contact-btn:hover .btn-glow-ring::before {
  opacity: 1;
  transform: scale(1.06);
}

.contact-btn:hover .btn-glow-ring::after {
  opacity: 1;
  transform: scale(1.12);
}

.contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 30px rgba(0, 240, 255, 0.45),
              0 0 60px rgba(0, 240, 255, 0.15);
  animation: none; /* Stop breathing on hover — active glow takes over */
}

.contact-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 12px rgba(0, 240, 255, 0.3);
}

.btn-text {
  position: relative;
  z-index: 1;
}

.btn-arrow {
  position: relative;
  z-index: 1;
  display: inline-block;
  transition: transform 300ms var(--ease-out);
}

.contact-btn:hover .btn-arrow {
  transform: translateX(6px);
}


/* ================================================================
   FOOTER — "Built by The Melting Bot" Production Badge
   ================================================================ */

.footer {
  position: relative;
  z-index: 2;
  padding: var(--space-8) var(--space-6);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tmb-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px 8px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-full);
  font-family: var(--font-logo);
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: box-shadow 300ms ease, border-color 300ms ease, color 300ms ease;
}

.tmb-badge:hover {
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.25),
              0 0 4px rgba(0, 240, 255, 0.15);
  border-color: #33f3ff;
  color: #fff;
}

.tmb-badge svg {
  flex-shrink: 0;
}


/* ================================================================
   SCROLL REVEAL — Staggered
   ================================================================ */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition-property: opacity, transform;
  transition-timing-function: var(--ease-out), var(--ease-out);
  /* duration and delay set per-element via JS for stagger */
  transition-duration: 0.7s;
  transition-delay: 0s;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


/* ================================================================
   RESPONSIVE
   ================================================================ */

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .footer-inner {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .about-stats {
    grid-template-columns: 1fr;
  }
}