/* ============================================
   nRg shUI — Premium Futuristic Portfolio
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg-deep: #030308;
  --bg-card: rgba(12, 14, 24, 0.55);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --border-glass: rgba(255, 255, 255, 0.08);
  --text-primary: #f0f2f8;
  --text-muted: #8b92a8;
  --cyan: #00f0ff;
  --cyan-dim: rgba(0, 240, 255, 0.15);
  --magenta: #ff00aa;
  --magenta-dim: rgba(255, 0, 170, 0.12);
  --violet: #7b2fff;
  --gradient-brand: linear-gradient(135deg, var(--cyan), var(--violet), var(--magenta));
  --glow-cyan: 0 0 40px rgba(0, 240, 255, 0.35);
  --glow-magenta: 0 0 40px rgba(255, 0, 170, 0.25);
  --font-display: "Orbitron", sans-serif;
  --font-body: "Outfit", sans-serif;
  --nav-height: 72px;
  --section-pad: clamp(3.5rem, 8vw, 7rem);
  --section-gap: clamp(1.25rem, 3vw, 2rem);
  --container: min(1140px, 90vw);
  --container-pad: clamp(1rem, 4vw, 2rem);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition: 0.4s var(--ease-out);
  --transition-fast: 0.25s var(--ease-out);
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* --- Background Effects --- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -3;
  background-image:
    linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 20%, transparent 70%);
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: -2;
  opacity: 0.5;
}

.bg-glow--cyan {
  width: 500px;
  height: 500px;
  background: var(--cyan);
  top: -10%;
  left: -10%;
  opacity: 0.12;
  animation: drift-glow 18s ease-in-out infinite;
}

.bg-glow--magenta {
  width: 450px;
  height: 450px;
  background: var(--magenta);
  bottom: 10%;
  right: -5%;
  opacity: 0.1;
  animation: drift-glow 22s ease-in-out infinite reverse;
}

@keyframes drift-glow {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, 30px) scale(1.08); }
}

/* --- Layout --- */
.container {
  width: var(--container);
  margin-inline: auto;
}

.section {
  padding-block: var(--section-pad);
}

.section__header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section__label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.75rem;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.section__subtitle {
  margin-top: 1rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-inline: auto;
  font-size: 1.05rem;
}

.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --- Glass Card --- */
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.glass-card:hover {
  border-color: rgba(0, 240, 255, 0.25);
  box-shadow: var(--glow-cyan);
  transform: translateY(-4px);
}

/* --- Futuristic glow hover (cards, services, contact) --- */
.glow-hover {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.glow-hover::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: conic-gradient(
    from var(--glow-angle, 0deg),
    transparent 0%,
    var(--cyan) 15%,
    var(--violet) 35%,
    var(--magenta) 50%,
    transparent 65%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
  z-index: 0;
  animation: rotate-glow-border 4s linear infinite;
  animation-play-state: paused;
}

.glow-hover::after {
  content: "";
  position: absolute;
  width: 200px;
  height: 200px;
  left: var(--spot-x, 50%);
  top: var(--spot-y, 50%);
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(0, 240, 255, 0.2) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
  z-index: 0;
}

.glow-hover:hover::before {
  opacity: 1;
  animation-play-state: running;
}

.glow-hover:hover::after {
  opacity: 1;
}

.glow-hover:hover {
  box-shadow:
    0 0 30px rgba(0, 240, 255, 0.15),
    0 20px 50px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.glow-hover > * {
  position: relative;
  z-index: 1;
}

@keyframes rotate-glow-border {
  to { --glow-angle: 360deg; }
}

@property --glow-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: clamp(1rem, 4vw, 2.5rem);
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.navbar--scrolled {
  background: rgba(3, 3, 8, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.navbar__logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.navbar__logo span {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.navbar__links {
  display: flex;
  gap: 2rem;
}

.navbar__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  position: relative;
  transition: color var(--transition);
}

.navbar__links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-brand);
  transition: width var(--transition);
}

.navbar__links a:hover,
.navbar__links a:focus-visible {
  color: var(--text-primary);
}

.navbar__links a:hover::after,
.navbar__links a:focus-visible::after,
.navbar__links a.is-active::after {
  width: 100%;
}

.navbar__links a.is-active {
  color: var(--text-primary);
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.navbar__toggle.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar__toggle.is-active span:nth-child(2) {
  opacity: 0;
}

.navbar__toggle.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  padding-inline: var(--container-pad);
  padding-top: calc(var(--nav-height) + clamp(1rem, 3vw, 2rem));
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero__gradient {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: hero-gradient-drift 12s ease-in-out infinite;
}

.hero__gradient--1 {
  width: min(70vw, 520px);
  height: min(70vw, 520px);
  top: -15%;
  right: 5%;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.35) 0%, transparent 70%);
}

.hero__gradient--2 {
  width: min(60vw, 420px);
  height: min(60vw, 420px);
  bottom: 0;
  left: -10%;
  background: radial-gradient(circle, rgba(123, 47, 255, 0.3) 0%, transparent 70%);
  animation-delay: -4s;
}

.hero__gradient--3 {
  width: min(50vw, 360px);
  height: min(50vw, 360px);
  top: 40%;
  left: 35%;
  background: radial-gradient(circle, rgba(255, 0, 170, 0.2) 0%, transparent 70%);
  animation-delay: -8s;
}

.hero__scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 240, 255, 0.015) 2px,
    rgba(0, 240, 255, 0.015) 4px
  );
  opacity: 0.6;
  animation: scanline-scroll 8s linear infinite;
}

@keyframes hero-gradient-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(20px, -15px) scale(1.05); }
  66% { transform: translate(-15px, 20px) scale(0.98); }
}

@keyframes scanline-scroll {
  to { background-position: 0 100px; }
}

.hero__content,
.hero__visual {
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(0.65rem, 1.5vw, 0.75rem);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: clamp(0.75rem, 2vw, 1.25rem);
  padding: 0.4rem 1rem 0.4rem 0.6rem;
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 50px;
  background: rgba(0, 240, 255, 0.05);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.1);
}

.hero__eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 11vw, 6.5rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin-bottom: clamp(0.5rem, 2vw, 0.75rem);
}

.hero__title-line {
  display: block;
}

.hero__title-line--glow {
  color: var(--text-primary);
  text-shadow:
    0 0 40px rgba(0, 240, 255, 0.3),
    0 0 80px rgba(123, 47, 255, 0.2);
  animation: title-flicker 4s ease-in-out infinite;
}

.hero__title-line--accent {
  background: linear-gradient(
    90deg,
    var(--cyan) 0%,
    var(--violet) 40%,
    var(--magenta) 70%,
    var(--cyan) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 35px rgba(0, 240, 255, 0.45));
  animation: shimmer-text 5s linear infinite;
}

@keyframes shimmer-text {
  to { background-position: 200% center; }
}

@keyframes title-flicker {
  0%, 100% { opacity: 1; }
  92% { opacity: 1; }
  93% { opacity: 0.92; }
  94% { opacity: 1; }
}

.hero__tagline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(0.85rem, 2.2vw, 1.25rem);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: clamp(1rem, 3vw, 1.5rem);
}

.hero__tagline span:not(.hero__tagline-sep) {
  color: var(--text-muted);
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
}

.hero__tagline span:not(.hero__tagline-sep):hover {
  color: var(--cyan);
  text-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
}

.hero__tagline-sep {
  color: rgba(0, 240, 255, 0.4);
  font-weight: 400;
}

.hero__desc {
  color: var(--text-muted);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  line-height: 1.7;
  max-width: 440px;
  margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

/* --- Glowing CTA Button --- */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 1rem 2.25rem;
  border-radius: 50px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition);
}

.btn--glow {
  background: rgba(0, 240, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid rgba(0, 240, 255, 0.45);
  box-shadow:
    0 0 25px rgba(0, 240, 255, 0.25),
    0 0 60px rgba(123, 47, 255, 0.15),
    inset 0 0 30px rgba(0, 240, 255, 0.06);
  animation: pulse-glow 2.5s ease-in-out infinite;
}

.btn__text {
  position: relative;
  z-index: 1;
}

.btn__shine {
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.25),
    transparent
  );
  transform: skewX(-20deg);
  animation: btn-shine 4s ease-in-out infinite;
}

.btn--glow::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--transition);
  z-index: 0;
  border-radius: inherit;
}

.btn--glow:hover {
  transform: translateY(-4px) scale(1.03);
  border-color: var(--cyan);
  box-shadow:
    0 0 40px rgba(0, 240, 255, 0.5),
    0 0 80px rgba(255, 0, 170, 0.2),
    0 15px 40px rgba(0, 0, 0, 0.4);
  color: var(--bg-deep);
  animation: none;
}

.btn--glow:hover::before {
  opacity: 1;
}

.btn--ghost {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 1rem 1.75rem;
  border-radius: 50px;
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.btn--ghost:hover {
  color: var(--cyan);
  border-color: rgba(0, 240, 255, 0.35);
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.15);
  transform: translateY(-2px);
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow:
      0 0 25px rgba(0, 240, 255, 0.25),
      0 0 60px rgba(123, 47, 255, 0.15),
      inset 0 0 30px rgba(0, 240, 255, 0.06);
  }
  50% {
    box-shadow:
      0 0 45px rgba(0, 240, 255, 0.45),
      0 0 90px rgba(255, 0, 170, 0.2),
      inset 0 0 40px rgba(0, 240, 255, 0.12);
  }
}

@keyframes btn-shine {
  0% { left: -100%; }
  20%, 100% { left: 150%; }
}

/* Hero visual */
.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: clamp(240px, 45vw, 380px);
}

.hero__visual-glow {
  position: absolute;
  width: 120%;
  height: 120%;
  background: radial-gradient(
    ellipse at center,
    rgba(0, 240, 255, 0.12) 0%,
    rgba(123, 47, 255, 0.08) 40%,
    transparent 70%
  );
  animation: visual-glow-pulse 4s ease-in-out infinite;
}

@keyframes visual-glow-pulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

.hero__orb {
  position: relative;
  width: clamp(180px, 32vw, 300px);
  height: clamp(180px, 32vw, 300px);
  animation: float-orb 6s ease-in-out infinite;
}

.hero__orb-core {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #fff 0%, var(--cyan) 15%, var(--violet) 45%, var(--magenta) 75%, #030308 100%);
  box-shadow:
    0 0 50px rgba(0, 240, 255, 0.5),
    0 0 100px rgba(123, 47, 255, 0.35),
    inset 0 0 40px rgba(255, 255, 255, 0.15);
  animation: orb-core-pulse 3s ease-in-out infinite;
}

.hero__orb-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero__orb-glow--1 {
  inset: -15%;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.4) 0%, transparent 65%);
  animation: orb-glow-expand 3s ease-in-out infinite;
}

.hero__orb-glow--2 {
  inset: -35%;
  background: radial-gradient(circle, rgba(255, 0, 170, 0.2) 0%, transparent 60%);
  animation: orb-glow-expand 3s ease-in-out infinite 1.5s;
}

@keyframes orb-core-pulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.15); }
}

@keyframes orb-glow-expand {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.12); opacity: 1; }
}

.hero__ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid transparent;
}

.hero__ring--1 {
  width: clamp(240px, 40vw, 380px);
  height: clamp(240px, 40vw, 380px);
  border-color: rgba(0, 240, 255, 0.25);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.1);
  animation: spin-ring 20s linear infinite;
}

.hero__ring--2 {
  width: clamp(280px, 46vw, 440px);
  height: clamp(280px, 46vw, 440px);
  border-color: rgba(255, 0, 170, 0.2);
  animation: spin-ring 28s linear infinite reverse;
}

.hero__ring--3 {
  width: clamp(320px, 52vw, 500px);
  height: clamp(320px, 52vw, 500px);
  border: 1px dashed rgba(123, 47, 255, 0.2);
  animation: spin-ring 35s linear infinite;
}

.hero__particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__particles span {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: particle-float 6s ease-in-out infinite;
}

.hero__particles span:nth-child(1) { top: 10%; left: 20%; animation-delay: 0s; }
.hero__particles span:nth-child(2) { top: 25%; right: 15%; animation-delay: -1s; width: 3px; height: 3px; background: var(--magenta); box-shadow: 0 0 8px var(--magenta); }
.hero__particles span:nth-child(3) { bottom: 30%; left: 10%; animation-delay: -2s; }
.hero__particles span:nth-child(4) { bottom: 15%; right: 25%; animation-delay: -3s; width: 5px; height: 5px; }
.hero__particles span:nth-child(5) { top: 50%; left: 5%; animation-delay: -4s; background: var(--violet); box-shadow: 0 0 8px var(--violet); }
.hero__particles span:nth-child(6) { top: 60%; right: 8%; animation-delay: -5s; }

@keyframes particle-float {
  0%, 100% { transform: translate(0, 0); opacity: 0.6; }
  50% { transform: translate(8px, -12px); opacity: 1; }
}

@keyframes float-orb {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-24px) rotate(3deg); }
}

@keyframes spin-ring {
  to { transform: rotate(360deg); }
}

/* --- About --- */
.about__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--section-gap);
}

.about__card {
  padding: 2rem;
  text-align: center;
}

.about__icon {
  font-size: 2rem;
  color: var(--cyan);
  margin-bottom: 1rem;
  text-shadow: var(--glow-cyan);
}

.about__card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.about__card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* --- Services --- */
.services {
  background: linear-gradient(180deg, transparent, rgba(0, 240, 255, 0.02), transparent);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--section-gap);
}

.service-card {
  position: relative;
  padding: clamp(1.5rem, 3vw, 2rem) clamp(1.25rem, 2.5vw, 1.75rem);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.service-card > * {
  position: relative;
  z-index: 1;
}

.service-card:hover {
  transform: translateY(-10px) scale(1.01);
  border-color: rgba(0, 240, 255, 0.35);
  box-shadow:
    0 0 35px rgba(0, 240, 255, 0.12),
    0 25px 50px rgba(0, 0, 0, 0.35);
}

.service-card__num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.35;
  line-height: 1;
  display: block;
  margin-bottom: 0.75rem;
  transition: opacity var(--transition);
}

.service-card:hover .service-card__num {
  opacity: 0.7;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 0.6rem;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  position: relative;
  z-index: 1;
}

.service-card__glow {
  position: absolute;
  bottom: -50%;
  right: -30%;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, var(--cyan-dim), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

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

/* --- Portfolio (glass cards) --- */
.portfolio {
  position: relative;
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--section-gap);
}

.portfolio-card {
  position: relative;
  display: block;
  border-radius: 20px;
  padding: 1px;
  background: transparent;
  transition: transform 0.5s var(--ease-out), box-shadow var(--transition);
  --spot-x: 50%;
  --spot-y: 50%;
}

.portfolio-card__border {
  position: absolute;
  inset: 0;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(
    135deg,
    rgba(0, 240, 255, 0.5),
    rgba(123, 47, 255, 0.3),
    rgba(255, 0, 170, 0.4),
    rgba(0, 240, 255, 0.2)
  );
  background-size: 300% 300%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.35;
  transition: opacity var(--transition);
  animation: border-gradient-flow 6s ease infinite;
  pointer-events: none;
  z-index: 2;
}

.portfolio-card:hover .portfolio-card__border {
  opacity: 1;
}

.portfolio-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 20px;
  background: radial-gradient(
    400px circle at var(--spot-x) var(--spot-y),
    rgba(0, 240, 255, 0.15),
    transparent 45%
  );
  opacity: 0;
  transition: opacity var(--transition);
  z-index: 3;
  pointer-events: none;
}

.portfolio-card:hover::before {
  opacity: 1;
}

.portfolio-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow:
    0 0 50px rgba(0, 240, 255, 0.2),
    0 25px 60px rgba(0, 0, 0, 0.5);
}

.portfolio-card__inner {
  position: relative;
  border-radius: 19px;
  overflow: hidden;
  background: rgba(8, 10, 18, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  aspect-ratio: 4 / 3;
  display: flex;
  flex-direction: column;
}

.portfolio-card__thumb {
  position: relative;
  flex: 1;
  min-height: 55%;
  overflow: hidden;
  transition: transform 0.7s var(--ease-out);
}

.portfolio-card:hover .portfolio-card__thumb {
  transform: scale(1.06);
}

.portfolio-card__mesh {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    125deg,
    transparent 30%,
    rgba(255, 255, 255, 0.06) 50%,
    transparent 70%
  );
  background-size: 200% 200%;
  animation: mesh-shine 4s ease-in-out infinite;
  pointer-events: none;
  z-index: 1;
}

.portfolio-card:hover .portfolio-card__mesh {
  animation-duration: 2s;
}

@keyframes mesh-shine {
  0%, 100% { background-position: 100% 100%; }
  50% { background-position: 0% 0%; }
}

@keyframes border-gradient-flow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.portfolio-card__thumb--1 {
  background: linear-gradient(135deg, #0a1628 0%, #00f0ff55 45%, #7b2fff77 100%);
}
.portfolio-card__thumb--2 {
  background: linear-gradient(225deg, #1a0a20 0%, #ff00aa55 45%, #00f0ff44 100%);
}
.portfolio-card__thumb--3 {
  background: linear-gradient(180deg, #0d1020 0%, #7b2fff66 55%, #00f0ff55 100%);
}
.portfolio-card__thumb--4 {
  background: linear-gradient(45deg, #050510 0%, #00f0ff44 40%, #ff00aa55 100%);
}
.portfolio-card__thumb--5 {
  background: linear-gradient(315deg, #101018 0%, #1a1a2e 45%, #00f0ff33 100%);
}
.portfolio-card__thumb--6 {
  background: linear-gradient(160deg, #0a0a14 0%, #7b2fff55 40%, #ff00aa44 100%);
}

.portfolio-card__glass {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.75rem;
  padding: clamp(1rem, 2.5vw, 1.35rem) clamp(1.1rem, 2.5vw, 1.5rem);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--transition), padding var(--transition);
}

.portfolio-card:hover .portfolio-card__glass {
  background: rgba(0, 240, 255, 0.06);
  border-top-color: rgba(0, 240, 255, 0.2);
}

.portfolio-card__cat {
  font-family: var(--font-display);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  width: 100%;
  text-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
}

.portfolio-card__glass h3 {
  font-family: var(--font-display);
  font-size: clamp(0.85rem, 2vw, 1rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  flex: 1;
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
}

.portfolio-card:hover .portfolio-card__glass h3 {
  color: var(--text-primary);
  text-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
}

.portfolio-card__arrow {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--cyan);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity var(--transition), transform var(--transition);
}

.portfolio-card:hover .portfolio-card__arrow {
  opacity: 1;
  transform: translateX(0);
  animation: arrow-pulse 1.5s ease-in-out infinite;
}

@keyframes arrow-pulse {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(6px); }
}

/* --- Contact --- */
.contact__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--section-gap);
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2.5rem 1.5rem;
}

.contact-card__icon {
  width: 48px;
  height: 48px;
  color: var(--cyan);
  margin-bottom: 1.25rem;
  transition: transform var(--transition), color var(--transition);
}

.contact-card__icon svg {
  width: 100%;
  height: 100%;
}

.contact-card:hover .contact-card__icon {
  transform: scale(1.1);
  color: var(--magenta);
}

.contact-card h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
}

.contact-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Footer --- */
.footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--border-glass);
  background: rgba(0, 0, 0, 0.3);
}

.footer__inner {
  text-align: center;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  display: inline-block;
  margin-bottom: 0.5rem;
}

.footer__logo span {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer__tagline {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.footer__nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.footer__nav a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer__nav a:hover {
  color: var(--cyan);
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.7;
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.portfolio-card.reveal {
  transform: translateY(40px) scale(0.97);
}

.portfolio-card.reveal.is-visible {
  transform: translateY(0) scale(1);
}

.reveal--delay {
  transition-delay: 0.12s;
}

.reveal--delay-2 {
  transition-delay: 0.24s;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  :root {
    --nav-height: 68px;
  }

  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: clamp(1.5rem, 4vw, 2.5rem);
    padding-bottom: clamp(2rem, 5vw, 3.5rem);
  }

  .hero__eyebrow {
    margin-inline: auto;
  }

  .hero__desc {
    margin-inline: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__tagline {
    justify-content: center;
  }

  .hero__visual {
    order: -1;
    min-height: clamp(220px, 50vw, 300px);
  }

  .hero__gradient--3 {
    left: 50%;
    transform: translateX(-50%);
  }

  .about__grid,
  .services__grid,
  .portfolio__grid,
  .contact__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(1rem, 2.5vw, 1.5rem);
  }

  .section__header {
    margin-bottom: clamp(2rem, 4vw, 3rem);
  }
}

@media (max-width: 768px) {
  :root {
    --section-pad: clamp(3rem, 10vw, 5rem);
    --nav-height: 64px;
  }

  .navbar {
    padding-inline: 1.25rem;
  }

  .navbar__toggle {
    display: flex;
  }

  .navbar__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: center;
    gap: 0;
    background: rgba(3, 3, 8, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    padding: 1.25rem 0 1.75rem;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
  }

  .navbar__links.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .navbar__links li {
    width: 100%;
    text-align: center;
  }

  .navbar__links a {
    display: block;
    padding: 0.9rem 1rem;
  }

  .about__grid,
  .services__grid,
  .portfolio__grid,
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .about__card,
  .service-card,
  .contact-card {
    padding: clamp(1.5rem, 4vw, 2rem);
  }

  .hero__ring--3 {
    display: none;
  }

  .hero__particles span:nth-child(5),
  .hero__particles span:nth-child(6) {
    display: none;
  }

  .footer {
    padding: clamp(2rem, 5vw, 3rem) 0 clamp(1.5rem, 4vw, 2rem);
  }

  .footer__nav {
    gap: 1rem 1.25rem;
  }
}

@media (max-width: 480px) {
  :root {
    --container: min(1140px, 94vw);
  }

  .hero {
    padding-top: calc(var(--nav-height) + 0.75rem);
  }

  .hero__title {
    font-size: clamp(2.5rem, 14vw, 3.25rem);
  }

  .hero__actions {
    flex-direction: column;
    width: 100%;
    max-width: 320px;
    margin-inline: auto;
  }

  .btn--glow,
  .btn--ghost {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .hero__tagline {
    letter-spacing: 0.1em;
    font-size: 0.8rem;
  }

  .section__title {
    font-size: clamp(1.5rem, 6vw, 1.85rem);
  }

  .portfolio-card__inner {
    aspect-ratio: 16 / 11;
  }
}

@media (hover: none) {
  .portfolio-card::before,
  .glow-hover::after {
    display: none;
  }

  .portfolio-card__arrow {
    opacity: 1;
    transform: translateX(0);
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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