/* =========================================================
   VIRUS Portfolio — base design system
   ========================================================= */

:root {
  --bg: #05060b;
  --bg-soft: #080a13;
  --bg-card: #0b0e19;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-2: rgba(255, 255, 255, 0.075);
  --surface-3: rgba(255, 255, 255, 0.11);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.18);
  --text: #f3f5ff;
  --text-soft: #c3c9e2;
  --muted: #8c94b5;
  --violet: #8b5cf6;
  --violet-soft: #b9a5ff;
  --cyan: #22d3ee;
  --cyan-soft: #7de8f7;
  --pink: #f472b6;
  --emerald: #34d399;
  --amber: #fbbf24;
  --blue: #60a5fa;
  --gradient: linear-gradient(115deg, #b9a5ff 0%, #22d3ee 52%, #f472b6 100%);
  --gradient-button: linear-gradient(115deg, #a78bfa 0%, #22d3ee 100%);
  --shadow-lg: 0 30px 80px -30px rgba(0, 0, 0, 0.9);
  --shadow-card: 0 24px 60px -34px rgba(0, 0, 0, 0.9);
  --radius: 24px;
  --radius-sm: 16px;
  --radius-lg: 32px;
  --container: 1240px;
  --nav-height: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Sora", "Segoe UI", sans-serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.is-locked {
  overflow: hidden;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  background: radial-gradient(circle at 50% 0%, transparent 45%, rgba(2, 3, 7, 0.28) 100%);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.035em;
}

p {
  margin: 0;
}

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

button {
  cursor: pointer;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

img,
svg {
  display: block;
}

img {
  max-width: 100%;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

::selection {
  background: rgba(139, 92, 246, 0.45);
  color: #ffffff;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #05060b;
}

::-webkit-scrollbar-thumb {
  border: 2px solid #05060b;
  border-radius: 999px;
  background: linear-gradient(180deg, #4c3a84, #155e6b);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #6d56b8, #1b7f8f);
}

.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.icon {
  width: 1.2em;
  height: 1.2em;
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.container {
  width: min(100% - 48px, var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 10001;
  padding: 12px 18px;
  border-radius: 999px;
  background: #ffffff;
  color: #05060b;
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform 0.3s var(--ease);
}

.skip-link:focus {
  transform: none;
}

/* ---------- Shared surfaces ---------- */

.glass {
  position: relative;
  background:
    radial-gradient(130% 120% at 0% 0%, rgba(255, 255, 255, 0.09), transparent 48%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.062), rgba(255, 255, 255, 0.018));
  border: 1px solid var(--border);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    var(--shadow-card);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
  backdrop-filter: blur(22px) saturate(145%);
}

.liquid-edge::after,
.nav-shell::after,
.portrait::after,
.cta-panel::after,
.contact-form-wrap::after,
.work-card::after,
.service-card::after,
.service-detail::after,
.cert-card::after,
.project-card::after,
.toolbox-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 8;
  padding: 1px;
  border-radius: inherit;
  background: linear-gradient(
    140deg,
    rgba(255, 255, 255, 0.42),
    rgba(255, 255, 255, 0.03) 32%,
    rgba(34, 211, 238, 0.22) 64%,
    rgba(139, 92, 246, 0.28)
  );
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.65;
  transition: opacity 0.4s var(--ease);
}

.work-card:hover::after,
.service-card:hover::after,
.service-detail:hover::after,
.cert-card:hover::after,
.project-card:hover::after {
  opacity: 1;
}

.spotlight {
  position: relative;
  overflow: hidden;
}

.spotlight::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background: radial-gradient(
    320px circle at var(--spot-x, 50%) var(--spot-y, 0%),
    rgba(255, 255, 255, 0.085),
    transparent 65%
  );
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--ease);
}

.spotlight:hover::before {
  opacity: 1;
}

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

/* ---------- Typography helpers ---------- */

.text-gradient {
  background: var(--gradient);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradientShift 9s ease-in-out infinite;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.eyebrow__sep {
  display: inline-block;
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.28), transparent);
}

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 0 4px rgba(52, 211, 153, 0.11), 0 0 12px rgba(52, 211, 153, 0.55);
  animation: statusPulse 2.6s ease-in-out infinite;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text-soft);
  white-space: nowrap;
}

.chip--live {
  border-color: rgba(52, 211, 153, 0.18);
  background: rgba(52, 211, 153, 0.07);
  color: #b5f5dd;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 11px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.015em;
  color: var(--text-soft);
  transition: border-color 0.3s, color 0.3s, background 0.3s;
}

.tag:hover {
  border-color: rgba(34, 211, 238, 0.3);
  background: rgba(34, 211, 238, 0.06);
  color: #ffffff;
}

.tag--large {
  padding: 9px 15px;
  font-size: 0.72rem;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
  transition: gap 0.3s var(--ease), color 0.3s;
}

.link-arrow .icon {
  width: 16px;
  height: 16px;
  color: var(--cyan);
  transition: transform 0.3s var(--ease);
}

.link-arrow:hover {
  gap: 12px;
  color: #ffffff;
}

.link-arrow:hover .icon {
  transform: translate(1px, -1px);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-soft);
  transition: color 0.3s;
}

.text-link .icon {
  width: 15px;
  height: 15px;
  color: var(--cyan);
}

.text-link:hover {
  color: #ffffff;
}

/* ---------- Accents ---------- */

.accent--violet {
  color: #cbbdff;
  background: rgba(139, 92, 246, 0.13);
  border: 1px solid rgba(139, 92, 246, 0.28);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 0 30px rgba(139, 92, 246, 0.08);
}

.accent--cyan {
  color: #9beeff;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.24);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 0 30px rgba(34, 211, 238, 0.07);
}

.accent--pink {
  color: #ffb3d9;
  background: rgba(244, 114, 182, 0.1);
  border: 1px solid rgba(244, 114, 182, 0.24);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 0 30px rgba(244, 114, 182, 0.07);
}

.accent--emerald {
  color: #8ff5cb;
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.24);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 0 30px rgba(52, 211, 153, 0.07);
}

.accent--amber {
  color: #ffe09b;
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.24);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 0 30px rgba(251, 191, 36, 0.07);
}

.accent--blue {
  color: #a9d0ff;
  background: rgba(96, 165, 250, 0.1);
  border: 1px solid rgba(96, 165, 250, 0.24);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 0 30px rgba(96, 165, 250, 0.07);
}

/* ---------- Buttons ---------- */

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 26px;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition:
    transform 0.35s var(--ease),
    box-shadow 0.35s var(--ease),
    background 0.35s,
    border-color 0.35s;
}

.btn .icon {
  width: 17px;
  height: 17px;
  transition: transform 0.35s var(--ease);
}

.btn:hover .icon {
  transform: translate(2px, -2px);
}

.btn--primary {
  background: var(--gradient-button);
  color: #06070d;
  box-shadow:
    0 16px 44px -14px rgba(34, 211, 238, 0.55),
    0 8px 24px -12px rgba(139, 92, 246, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.btn--primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 25%, rgba(255, 255, 255, 0.45) 50%, transparent 75%);
  transform: translateX(-130%);
  transition: transform 0.75s var(--ease);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow:
    0 20px 54px -14px rgba(34, 211, 238, 0.65),
    0 10px 28px -12px rgba(139, 92, 246, 0.65),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.btn--primary:hover::before {
  transform: translateX(130%);
}

.btn--glass {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.055);
  color: var(--text);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.btn--glass:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.09);
}

.btn--sm {
  padding: 11px 18px;
  font-size: 0.78rem;
}

.btn.is-loading {
  pointer-events: none;
  opacity: 0.75;
}

.icon-btn {
  display: inline-grid;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.045);
  color: var(--text-soft);
  transition:
    color 0.3s,
    background 0.3s,
    border-color 0.3s,
    transform 0.3s var(--ease);
}

.icon-btn .icon {
  width: 17px;
  height: 17px;
}

.icon-btn:hover {
  border-color: rgba(34, 211, 238, 0.35);
  background: rgba(34, 211, 238, 0.09);
  color: #ffffff;
  transform: translateY(-2px);
}

.icon-btn--light {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

/* ---------- Background scene ---------- */

.bg-scene {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 50% -20%, rgba(100, 70, 190, 0.13), transparent 55%),
    linear-gradient(180deg, #05060b 0%, #060812 55%, #04050a 100%);
}

.bg-scene__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(95px);
  opacity: 0.5;
  animation: orbFloat 22s ease-in-out infinite alternate;
  will-change: transform;
}

.bg-scene__orb--violet {
  top: -20%;
  left: -12%;
  width: 52vw;
  height: 52vw;
  background: rgba(111, 66, 225, 0.28);
}

.bg-scene__orb--cyan {
  top: 18%;
  right: -14%;
  width: 42vw;
  height: 42vw;
  background: rgba(8, 145, 178, 0.19);
  animation-delay: -7s;
}

.bg-scene__orb--pink {
  bottom: -24%;
  left: 28%;
  width: 38vw;
  height: 38vw;
  background: rgba(219, 39, 119, 0.12);
  animation-delay: -13s;
}

.bg-scene__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.032) 1px, transparent 1px);
  background-size: 74px 74px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 28%, #000 10%, transparent 80%);
  mask-image: radial-gradient(ellipse 70% 60% at 50% 28%, #000 10%, transparent 80%);
  opacity: 0.55;
}

.bg-scene__noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.035;
  mix-blend-mode: overlay;
}

.bg-scene__spotlight {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    650px circle at var(--mx, 50%) var(--my, 22%),
    rgba(139, 92, 246, 0.1),
    transparent 62%
  );
}

/* ---------- Scroll progress, cursor, loader ---------- */

.scroll-progress {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1001;
  height: 2px;
  background: transparent;
  pointer-events: none;
}

.scroll-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--gradient);
  box-shadow: 0 0 16px rgba(34, 211, 238, 0.65);
}

.cursor {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

@media (hover: hover) and (pointer: fine) {
  body.has-custom-cursor,
  body.has-custom-cursor a,
  body.has-custom-cursor button,
  body.has-custom-cursor [role="button"] {
    cursor: none;
  }

  body.has-custom-cursor input,
  body.has-custom-cursor textarea {
    cursor: text;
  }

  body.has-custom-cursor select {
    cursor: pointer;
  }

  body.cursor-field .cursor {
    opacity: 0 !important;
  }
}

.cursor__dot,
.cursor__ring {
  position: fixed;
  top: 0;
  left: 0;
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  will-change: transform;
}

.cursor__dot {
  width: 6px;
  height: 6px;
  background: #ffffff;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.65);
}

.cursor__ring {
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition:
    width 0.3s var(--ease),
    height 0.3s var(--ease),
    background 0.3s,
    border-color 0.3s;
}

body.cursor-hover .cursor__ring {
  width: 56px;
  height: 56px;
  border-color: rgba(34, 211, 238, 0.55);
  background: rgba(34, 211, 238, 0.06);
}

@media (hover: hover) and (pointer: fine) {
  .cursor {
    display: block;
  }
}

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
  background: #05060b;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.65s var(--ease), visibility 0.65s;
}

.js .page-loader {
  opacity: 1;
  visibility: visible;
}

.js .page-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.page-loader__logo {
  width: auto;
  height: 56px;
  filter: drop-shadow(0 0 32px rgba(139, 92, 246, 0.4));
  animation: loaderGlow 2s ease-in-out infinite alternate;
}

.page-loader__bar {
  width: 180px;
  height: 2px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
}

.page-loader__bar span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--gradient);
  animation: loaderBar 1.25s var(--ease) forwards;
}

.page-loader__text {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- Header & navigation ---------- */

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: padding 0.4s var(--ease), transform 0.4s var(--ease);
}

.site-header.is-scrolled {
  padding: 10px 0;
}

.site-header.is-hidden {
  transform: translateY(-120%);
}

.nav-shell {
  position: relative;
  display: flex;
  width: min(100% - 48px, var(--container));
  margin-inline: auto;
  padding: 9px 12px 9px 16px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 999px;
  background: rgba(9, 11, 20, 0.58);
  box-shadow:
    0 22px 54px -26px rgba(0, 0, 0, 0.9),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  backdrop-filter: blur(24px) saturate(160%);
  transition: background 0.4s, box-shadow 0.4s;
}

.site-header.is-scrolled .nav-shell {
  background: rgba(7, 9, 17, 0.82);
  box-shadow:
    0 24px 62px -28px rgba(0, 0, 0, 0.96),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 11px;
}

.brand__logo {
  width: auto;
  height: 37px;
  filter: drop-shadow(0 0 20px rgba(139, 92, 246, 0.22));
  transition: transform 0.35s var(--ease);
}

.brand:hover .brand__logo {
  transform: scale(1.03);
}

.brand__divider {
  width: 1px;
  height: 26px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.08;
}

.brand__text strong {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.brand__text small {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 4px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.022);
}

.nav__link {
  position: relative;
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-soft);
  transition: color 0.3s, background 0.3s;
}

.nav__link:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
}

.nav__link.is-active {
  background: linear-gradient(120deg, rgba(139, 92, 246, 0.22), rgba(34, 211, 238, 0.1));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.nav__link.is-active::after {
  content: "";
  position: absolute;
  bottom: 3px;
  left: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  transform: translateX(-50%);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-toggle {
  position: relative;
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}

.nav-toggle span {
  position: absolute;
  left: 11px;
  width: 18px;
  height: 1.5px;
  border-radius: 2px;
  background: #ffffff;
  transition: transform 0.35s var(--ease), opacity 0.25s, top 0.35s var(--ease);
}

.nav-toggle span:nth-child(1) {
  top: 14px;
}

.nav-toggle span:nth-child(2) {
  top: 20px;
}

.nav-toggle span:nth-child(3) {
  top: 26px;
}

.nav-toggle.is-open span:nth-child(1) {
  top: 20px;
  transform: rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  top: 20px;
  transform: rotate(-45deg);
}

/* ---------- Mobile menu ---------- */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s;
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__scrim {
  position: absolute;
  inset: 0;
  background: rgba(3, 4, 9, 0.68);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.mobile-menu__panel {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  width: min(94vw, 470px);
  height: 100%;
  padding: 104px 30px 30px;
  flex-direction: column;
  gap: 28px;
  overflow-y: auto;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  background:
    radial-gradient(120% 80% at 100% 0%, rgba(139, 92, 246, 0.14), transparent 55%),
    linear-gradient(165deg, rgba(18, 21, 38, 0.98), rgba(6, 8, 15, 0.99));
  box-shadow: -30px 0 80px -30px rgba(0, 0, 0, 0.9);
  transform: translateX(102%);
  transition: transform 0.55s var(--ease);
}

.mobile-menu.is-open .mobile-menu__panel {
  transform: none;
}

.mobile-menu__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.mobile-menu__top .eyebrow {
  font-size: 0.56rem;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
}

.mobile-nav__link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.065);
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 5vw, 1.9rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--text-soft);
  opacity: 0;
  transform: translateX(18px);
  transition:
    opacity 0.45s var(--ease),
    transform 0.45s var(--ease),
    color 0.3s,
    padding-left 0.3s var(--ease);
}

.mobile-menu.is-open .mobile-nav__link {
  opacity: 1;
  transform: none;
}

.mobile-menu.is-open .mobile-nav__link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu.is-open .mobile-nav__link:nth-child(2) { transition-delay: 0.14s; }
.mobile-menu.is-open .mobile-nav__link:nth-child(3) { transition-delay: 0.18s; }
.mobile-menu.is-open .mobile-nav__link:nth-child(4) { transition-delay: 0.22s; }
.mobile-menu.is-open .mobile-nav__link:nth-child(5) { transition-delay: 0.26s; }
.mobile-menu.is-open .mobile-nav__link:nth-child(6) { transition-delay: 0.3s; }

.mobile-nav__index {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.mobile-nav__label {
  flex: 1;
}

.mobile-nav__link .icon {
  width: 19px;
  height: 19px;
  color: var(--muted);
  opacity: 0.5;
  transition: opacity 0.3s, color 0.3s, transform 0.3s var(--ease);
}

.mobile-nav__link:hover,
.mobile-nav__link.is-active {
  padding-left: 8px;
  color: #ffffff;
}

.mobile-nav__link:hover .icon,
.mobile-nav__link.is-active .icon {
  color: var(--cyan);
  opacity: 1;
  transform: translate(2px, -2px);
}

.mobile-menu__footer {
  display: flex;
  margin-top: auto;
  flex-direction: column;
  gap: 14px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-size: 0.76rem;
  color: var(--muted);
}

.mobile-menu__contact {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu__contact a {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-soft);
}

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

.mobile-menu__socials {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

/* ---------- Sections ---------- */

.site-main {
  position: relative;
  z-index: 1;
}

.section {
  position: relative;
  padding: clamp(76px, 9vw, 128px) 0;
}

.section--tight {
  padding-top: clamp(32px, 4vw, 54px);
}

.section--alt {
  border-block: 1px solid rgba(255, 255, 255, 0.04);
  background:
    radial-gradient(60% 100% at 50% 0%, rgba(139, 92, 246, 0.035), transparent 60%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0.005));
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: clamp(34px, 4.5vw, 56px);
}

.section-head--center {
  justify-content: center;
  text-align: center;
}

.section-head--center .section-title {
  margin-inline: auto;
}

.section-title {
  max-width: 760px;
  margin-top: 16px;
  font-size: clamp(2rem, 4.1vw, 3.35rem);
  line-height: 1.06;
}

.section-head__note {
  max-width: 340px;
  padding-bottom: 6px;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- Reveal animations ---------- */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.85s var(--ease),
    transform 0.85s var(--ease);
  will-change: opacity, transform;
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

[data-skill-fill] {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--bar-color, var(--cyan)), rgba(255, 255, 255, 0.9));
  box-shadow: 0 0 14px var(--bar-color, var(--cyan));
  transition: width 1.4s var(--ease);
}

[data-skill-fill].is-filled {
  width: var(--level, 0%);
}

/* ---------- Flash notifications ---------- */

.flash-stack {
  position: fixed;
  top: 96px;
  right: 24px;
  z-index: 1200;
  display: flex;
  width: min(420px, calc(100vw - 48px));
  flex-direction: column;
  gap: 10px;
}

.flash {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 15px;
  border: 1px solid rgba(52, 211, 153, 0.24);
  border-radius: 16px;
  background: rgba(10, 14, 24, 0.88);
  box-shadow: var(--shadow-lg);
  -webkit-backdrop-filter: blur(22px);
  backdrop-filter: blur(22px);
  animation: flashIn 0.55s var(--ease);
  transition: opacity 0.35s, transform 0.35s;
}

.flash__icon {
  display: grid;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  place-items: center;
  border-radius: 50%;
  background: rgba(52, 211, 153, 0.12);
  color: var(--emerald);
}

.flash__icon .icon {
  width: 16px;
  height: 16px;
}

.flash p {
  flex: 1;
  padding-top: 2px;
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--text-soft);
}

.flash__close {
  display: grid;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
}

.flash__close:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
}

.flash__close .icon {
  width: 13px;
  height: 13px;
}

.flash--error {
  border-color: rgba(248, 113, 113, 0.28);
}

.flash--error .flash__icon {
  background: rgba(248, 113, 113, 0.12);
  color: #f87171;
}

.flash.is-leaving {
  opacity: 0;
  transform: translateX(20px);
}

/* ---------- Footer ---------- */

.footer {
  position: relative;
  overflow: hidden;
  padding: 76px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.055);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.012), rgba(4, 5, 10, 0.65));
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.55fr 0.65fr 0.8fr 1.1fr;
  gap: 42px;
  padding-bottom: 56px;
}

.footer__brand p {
  max-width: 340px;
  margin: 18px 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--muted);
}

.brand--footer .brand__logo {
  height: 46px;
}

.footer__status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid rgba(52, 211, 153, 0.14);
  border-radius: 999px;
  background: rgba(52, 211, 153, 0.06);
  font-size: 0.66rem;
  color: #b5f5dd;
}

.footer__socials {
  display: flex;
  gap: 8px;
  margin-top: 20px;
}

.footer__col h3 {
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.footer__col a {
  display: block;
  padding: 5px 0;
  font-size: 0.82rem;
  color: var(--text-soft);
  transition: color 0.3s, transform 0.3s var(--ease);
}

.footer__col a:hover {
  color: #ffffff;
  transform: translateX(3px);
}

.footer__col--contact a {
  display: flex;
  align-items: center;
  gap: 8px;
  word-break: break-word;
}

.footer__col--contact .icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--violet-soft);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.055);
  flex-wrap: wrap;
  font-size: 0.7rem;
  color: var(--muted);
}

.footer__made {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon--heart {
  width: 13px;
  height: 13px;
  fill: currentColor;
  stroke: none;
  color: var(--pink);
}

.footer__top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-soft);
  transition: color 0.3s;
}

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

.footer__top .icon {
  width: 14px;
  height: 14px;
}

.footer__watermark {
  position: absolute;
  bottom: -0.17em;
  left: 50%;
  font-family: var(--font-display);
  font-size: clamp(7rem, 21vw, 19rem);
  font-weight: 800;
  line-height: 0.7;
  letter-spacing: -0.08em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.035);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  transform: translateX(-50%);
}

/* ---------- Back to top ---------- */

.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 900;
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  background: rgba(10, 13, 24, 0.72);
  box-shadow: var(--shadow-card);
  color: #ffffff;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  transition:
    opacity 0.35s,
    visibility 0.35s,
    transform 0.35s var(--ease),
    background 0.3s,
    color 0.3s;
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover {
  background: var(--gradient-button);
  color: #06070d;
}

.to-top .icon {
  width: 18px;
  height: 18px;
}

/* ---------- Modals ---------- */

.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  padding: 24px;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s, visibility 0.35s;
}

.modal.is-open {
  opacity: 1;
  visibility: visible;
}

.modal__scrim {
  position: absolute;
  inset: 0;
  background: rgba(3, 4, 9, 0.82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.modal__dialog {
  position: relative;
  z-index: 1;
  display: flex;
  width: min(100%, 1000px);
  max-height: min(90vh, 900px);
  flex-direction: column;
  overflow: hidden;
  border-radius: 28px;
  transform: translateY(22px) scale(0.98);
  transition: transform 0.45s var(--ease);
}

.modal.is-open .modal__dialog {
  transform: none;
}

.modal__top {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.modal__top .eyebrow {
  font-size: 0.58rem;
}

/* ---------- Keyframes ---------- */

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

@keyframes statusPulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(52, 211, 153, 0.1), 0 0 12px rgba(52, 211, 153, 0.5); }
  50% { box-shadow: 0 0 0 7px rgba(52, 211, 153, 0.03), 0 0 20px rgba(52, 211, 153, 0.7); }
}

@keyframes orbFloat {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(4%, 6%, 0) scale(1.08); }
  100% { transform: translate3d(-3%, -4%, 0) scale(0.96); }
}

@keyframes loaderBar {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes loaderGlow {
  from { filter: drop-shadow(0 0 18px rgba(139, 92, 246, 0.25)); }
  to { filter: drop-shadow(0 0 38px rgba(34, 211, 238, 0.4)); }
}

@keyframes flashIn {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: none; }
}

@keyframes blink {
  0%, 45% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

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

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

@keyframes scrollLine {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(200%); }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes pulseRing {
  0% { transform: scale(0.85); opacity: 0.8; }
  100% { transform: scale(1.5); opacity: 0; }
}