:root {
  --color-bg: #0a0a0f;
  --color-bg-alt: #0f0f17;
  --color-surface: #14141f;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-text: #e9e9f0;
  --color-text-dim: #9a9aab;
  --color-text-faint: #6a6a7a;

  --color-purple: #a855f7;
  --color-purple-soft: #c084fc;
  --color-orange: #ff7a1a;
  --color-orange-soft: #ffa85c;

  --grad-accent: linear-gradient(90deg, var(--color-purple), var(--color-orange));

  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --container-max: 1180px;
  --space-section: clamp(4rem, 10vw, 8rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

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

ul {
  list-style: none;
}

.accent-purple { color: var(--color-purple-soft); }
.accent-orange { color: var(--color-orange-soft); }

.accent-grad {
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Scanline overlay texture */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.015) 0px,
    rgba(255, 255, 255, 0.015) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
  opacity: 0.6;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.5rem clamp(1.25rem, 5vw, 3rem);
}

.brand {
  display: inline-flex;
  filter: drop-shadow(0 0 8px rgba(168, 85, 247, 0.35));
  transition: filter 0.3s ease;
}

.brand:hover {
  filter: drop-shadow(0 0 14px rgba(168, 85, 247, 0.6));
}

/* Section heading */
.section-heading {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 3rem);
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.section-heading__eyebrow {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-orange-soft);
  margin-bottom: 0.6rem;
}

.section-heading__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem clamp(1.25rem, 5vw, 3rem) 4rem;
  overflow: hidden;
}

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

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 6vw, 4rem);
  align-items: center;
}

.hero__eyebrow {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-purple-soft);
  margin-bottom: 1rem;
}

.hero__name {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.hero__role {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-dim);
  margin-bottom: 1.75rem;
}

.hero__desc {
  max-width: 46ch;
  color: var(--color-text-dim);
  font-size: clamp(0.95rem, 1.3vw, 1.05rem);
}

.hero__logo-wrap {
  position: relative;
  justify-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1 / 1;
}

.hero__logo-glow {
  position: absolute;
  inset: -10%;
  background: radial-gradient(circle at 50% 45%, rgba(168, 85, 247, 0.4), transparent 60%),
              radial-gradient(circle at 60% 65%, rgba(255, 122, 26, 0.28), transparent 55%);
  filter: blur(30px);
  animation: pulse-glow 5s ease-in-out infinite;
  z-index: 0;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.06); }
}

.hero__logo-big {
  position: relative;
  z-index: 1;
  width: 55%;
  height: auto;
  filter: drop-shadow(0 0 22px rgba(168, 85, 247, 0.45)) drop-shadow(0 0 40px rgba(255, 122, 26, 0.2));
  animation: logo-float 6s ease-in-out infinite;
}

@keyframes logo-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.scroll-cta {
  position: absolute;
  bottom: clamp(1.5rem, 4vw, 2.5rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-faint);
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: color 0.3s ease;
}

.scroll-cta:hover {
  color: var(--color-purple-soft);
}

.scroll-cta__dot {
  animation: scroll-dot 1.8s ease-in-out infinite;
}

@keyframes scroll-dot {
  0% { opacity: 1; transform: translateY(0); }
  50% { opacity: 0.3; transform: translateY(10px); }
  100% { opacity: 0; transform: translateY(10px); }
}

/* ============ SKILLS ============ */
.skills {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-section) clamp(1.25rem, 5vw, 3rem);
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.skill-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 1.75rem 1.5rem;
  overflow: hidden;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.skill-card__glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 0%, rgba(168, 85, 247, 0.18), transparent 60%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.skill-card:hover {
  transform: translateY(-6px) scale(1.015);
  border-color: rgba(168, 85, 247, 0.4);
  box-shadow: 0 12px 40px -12px rgba(168, 85, 247, 0.35), 0 0 0 1px rgba(255, 122, 26, 0.08);
}

.skill-card:hover .skill-card__glow {
  opacity: 1;
}

.skill-card__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1.1rem;
  position: relative;
}

.skill-card__title::after {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  margin-top: 0.6rem;
  background: var(--grad-accent);
}

.skill-card__tags {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-card__tags li {
  font-size: 0.82rem;
  color: var(--color-text-dim);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.skill-card:hover .skill-card__tags li {
  color: var(--color-text);
  border-color: rgba(255, 122, 26, 0.3);
}

/* ============ CONTACT ============ */
.contact {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-section) clamp(1.25rem, 5vw, 3rem);
  text-align: center;
}

.contact .section-heading {
  text-align: center;
}

.contact__row {
  display: flex;
  justify-content: center;
  gap: clamp(1.5rem, 5vw, 3.5rem);
  flex-wrap: wrap;
}

.contact__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.contact__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 68px;
  height: 68px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-dim);
  transition: color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.contact__item:nth-child(odd) .contact__icon:hover,
.contact__item:nth-child(odd):hover .contact__icon {
  color: var(--color-purple-soft);
  border-color: rgba(168, 85, 247, 0.5);
  box-shadow: 0 0 24px rgba(168, 85, 247, 0.45);
  transform: translateY(-4px);
}

.contact__item:nth-child(even) .contact__icon:hover,
.contact__item:nth-child(even):hover .contact__icon {
  color: var(--color-orange-soft);
  border-color: rgba(255, 122, 26, 0.5);
  box-shadow: 0 0 24px rgba(255, 122, 26, 0.45);
  transform: translateY(-4px);
}

.contact__label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--color-text-faint);
}

/* ============ FOOTER ============ */
.site-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 2.5rem clamp(1.25rem, 5vw, 3rem) 3rem;
  border-top: 1px solid var(--color-border);
  opacity: 0.8;
}

.site-footer img {
  opacity: 0.7;
}

.site-footer__copy {
  font-size: 0.8rem;
  color: var(--color-text-faint);
}

/* ============ SCROLL REVEAL ============ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.skills__grid .skill-card.reveal:nth-child(1) { transition-delay: 0.05s; }
.skills__grid .skill-card.reveal:nth-child(2) { transition-delay: 0.15s; }
.skills__grid .skill-card.reveal:nth-child(3) { transition-delay: 0.25s; }
.skills__grid .skill-card.reveal:nth-child(4) { transition-delay: 0.35s; }

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

@media (max-width: 860px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__desc {
    max-width: 56ch;
    margin: 0 auto;
  }

  .hero__logo-wrap {
    order: -1;
    max-width: 220px;
  }

  .hero__text {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 560px) {
  .skills__grid {
    grid-template-columns: 1fr;
  }

  .contact__row {
    gap: 1.5rem;
  }

  .contact__icon {
    width: 58px;
    height: 58px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero__logo-glow,
  .hero__logo-big,
  .scroll-cta__dot {
    animation: none;
  }

  .reveal {
    transition: none;
    opacity: 1;
    transform: none;
  }
}