:root {
  --bg: #060816;
  --bg-2: #0c1224;
  --panel: rgba(13, 20, 40, 0.72);
  --panel-strong: rgba(16, 25, 48, 0.86);
  --accent: #3b82f6;
  --purple: #8b5cf6;
  --cyan: #22d3ee;
  --success: #34d399;
  --text: #f8fafc;
  --muted: #a7b0c3;
  --soft: #dbeafe;
  --line: rgba(191, 219, 254, 0.16);
  --line-strong: rgba(96, 165, 250, 0.34);
  --glass: linear-gradient(145deg, rgba(18, 28, 55, 0.78), rgba(8, 13, 28, 0.54));
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.44);
  --glow: 0 0 40px rgba(59, 130, 246, 0.18);
  --radius: 8px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

body.light {
  --bg: #f6f8fc;
  --bg-2: #ffffff;
  --panel: rgba(255, 255, 255, 0.82);
  --panel-strong: rgba(255, 255, 255, 0.94);
  --text: #111827;
  --muted: #4b5563;
  --soft: #1d4ed8;
  --line: rgba(15, 23, 42, 0.12);
  --line-strong: rgba(59, 130, 246, 0.24);
  --glass: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(239, 246, 255, 0.74));
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
  --glow: 0 0 34px rgba(59, 130, 246, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 10%, rgba(59, 130, 246, 0.14), transparent 26rem),
    radial-gradient(circle at 88% 12%, rgba(139, 92, 246, 0.12), transparent 24rem),
    var(--bg);
  overflow-x: hidden;
  line-height: 1.65;
  transition: background 0.45s var(--ease), color 0.45s var(--ease);
}

body.light {
  background:
    radial-gradient(circle at 14% 8%, rgba(59, 130, 246, 0.09), transparent 24rem),
    radial-gradient(circle at 88% 14%, rgba(139, 92, 246, 0.08), transparent 22rem),
    var(--bg);
}

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

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.section {
  position: relative;
  padding: 118px 0;
}

.section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(59, 130, 246, 0.025), transparent);
}

.glass {
  background: var(--glass);
  border: 1px solid var(--line);
  box-shadow: var(--shadow), var(--glow);
  backdrop-filter: blur(16px);
  transform: translateZ(0);
}

.loader {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  gap: 18px;
  align-content: center;
  background: radial-gradient(circle at center, #101936, var(--bg) 60%);
  transition: opacity 0.6s var(--ease), visibility 0.6s var(--ease);
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-ring {
  width: 62px;
  height: 62px;
  border: 2px solid rgba(255, 255, 255, 0.12);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loader span {
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.76rem;
  font-weight: 800;
}

.progress-bar {
  position: fixed;
  z-index: 1001;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--cyan), var(--purple));
  box-shadow: 0 0 18px rgba(59, 130, 246, 0.65);
}

.cursor-glow {
  position: fixed;
  z-index: 0;
  width: 320px;
  height: 320px;
  pointer-events: none;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.16), transparent 66%);
  transform: translate(-50%, -50%);
  mix-blend-mode: screen;
  will-change: transform;
}

body.light .cursor-glow {
  mix-blend-mode: multiply;
  opacity: 0.5;
}

.page-bg,
.grid-layer,
#particles,
.blob {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.page-bg {
  z-index: -1;
  overflow: hidden;
}

.grid-layer {
  background-image:
    linear-gradient(rgba(147, 197, 253, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(147, 197, 253, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.92), transparent 90%);
}

body.light .grid-layer {
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.045) 1px, transparent 1px);
}

.blob {
  width: 360px;
  height: 360px;
  border-radius: 50%;
  filter: blur(54px);
  opacity: 0.2;
  animation: floatBlob 15s ease-in-out infinite;
}

body.light .blob {
  opacity: 0.14;
}

.blob-one {
  left: -110px;
  top: 90px;
  background: var(--accent);
}

.blob-two {
  right: -120px;
  top: 28%;
  background: var(--purple);
  animation-delay: -5s;
}

.blob-three {
  left: 45%;
  bottom: -160px;
  background: var(--cyan);
  animation-delay: -9s;
}

.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  transition: background 0.35s var(--ease), border 0.35s var(--ease);
}

.site-header.scrolled {
  background: rgba(6, 8, 22, 0.78);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

body.light .site-header.scrolled {
  background: rgba(255, 255, 255, 0.82);
}

.nav {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  box-shadow: 0 0 28px rgba(59, 130, 246, 0.34);
}

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

.nav-link {
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 9px 12px;
  background: transparent;
  cursor: pointer;
  transition: color 0.25s var(--ease), border 0.25s var(--ease), background 0.25s var(--ease);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 8px 6px 10px;
  background: var(--panel);
  cursor: pointer;
  font-weight: 800;
  font-size: 0.72rem;
  transition: color 0.25s var(--ease), border 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}

.theme-icon {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--muted);
  box-shadow: inset -4px -2px 0 rgba(59, 130, 246, 0.55);
  transition: border 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}

body.light .theme-icon {
  border-color: #f59e0b;
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.16), inset 0 0 0 rgba(0, 0, 0, 0);
  transform: rotate(45deg);
}

.toggle-track {
  position: relative;
  width: 38px;
  height: 21px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.18);
  border: 1px solid var(--line);
}

.toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.45);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}

body.light .toggle-thumb {
  transform: translateX(17px);
  background: linear-gradient(135deg, #f59e0b, #3b82f6);
}

.nav-link:hover,
.nav-link.active,
.theme-toggle:hover {
  color: var(--text);
  border-color: var(--line-strong);
  background: rgba(59, 130, 246, 0.11);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
}

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding-top: 118px;
}

.hero-grid,
.two-column,
.contact-grid {
  display: grid;
  grid-template-columns: 0.98fr 1.02fr;
  gap: 64px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  color: var(--soft);
  background: rgba(59, 130, 246, 0.11);
  border: 1px solid var(--line-strong);
  padding: 7px 11px;
  border-radius: 999px;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 800;
}

body.light .eyebrow,
body.light .chips span,
body.light .tech-cloud span {
  background: rgba(59, 130, 246, 0.08);
  color: #1d4ed8;
}

h1,
h2,
h3 {
  font-family: "Poppins", "Inter", sans-serif;
  line-height: 1.08;
  letter-spacing: 0;
  margin: 0;
}

h1 {
  margin-top: 18px;
  font-size: clamp(2.65rem, 5.8vw, 5.25rem);
  line-height: 1.03;
  max-width: 820px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.65rem);
  max-width: 880px;
}

h3 {
  font-size: 1.18rem;
}

.section-heading h2,
.section-copy h2 {
  background: linear-gradient(90deg, var(--text), #93c5fd 62%, #c4b5fd);
  -webkit-background-clip: text;
  color: transparent;
}

body.light .section-heading h2,
body.light .section-copy h2 {
  background: linear-gradient(90deg, #111827, #1d4ed8 68%, #6d28d9);
  -webkit-background-clip: text;
  color: transparent;
}

.hero-subtitle,
.section-copy p,
.project-content p,
.service-card p,
.timeline-item p,
.contact-methods,
.footer p {
  color: var(--muted);
}

.hero-subtitle {
  font-size: 1.08rem;
  max-width: 650px;
  margin: 20px 0 16px;
}

.typing-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 32px;
  color: var(--muted);
}

.typing-line strong {
  color: var(--text);
}

.typing-line strong::after {
  content: "";
  display: inline-block;
  width: 2px;
  height: 1em;
  margin-left: 4px;
  background: var(--accent);
  animation: blink 0.8s step-end infinite;
  vertical-align: -2px;
}

.hero-actions,
.social-row,
.project-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-actions {
  margin-top: 28px;
}

.btn {
  position: relative;
  isolation: isolate;
  border: 0;
  cursor: pointer;
  border-radius: var(--radius);
  padding: 13px 19px;
  font-weight: 800;
  overflow: hidden;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(120deg, var(--accent), var(--cyan), var(--purple), var(--accent));
  background-size: 240% 240%;
  animation: gradientMove 5s ease infinite;
}

.btn-primary {
  color: white;
  box-shadow: 0 14px 34px rgba(59, 130, 246, 0.26);
}

.btn-secondary {
  color: var(--text);
  background: transparent;
  border: 1px solid var(--line);
}

.btn-secondary::before {
  opacity: 0.12;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 48px rgba(59, 130, 246, 0.24);
}

.social-row {
  margin-top: 24px;
}

.social-row a {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  transition: 0.25s var(--ease);
}

.social-row svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.social-row a:hover {
  color: white;
  background: var(--accent);
  transform: translateY(-5px);
}

.hero-visual {
  position: relative;
  min-height: 590px;
}

.ops-console {
  transform-style: preserve-3d;
}

.portrait-frame {
  position: absolute;
  left: 50%;
  top: 48%;
  z-index: 2;
  width: min(340px, 72%);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  padding: 12px;
  transform: translate(-50%, -50%);
  overflow: hidden;
  animation: portraitFloat 7s ease-in-out infinite;
}

.portrait-frame::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  background: conic-gradient(from 140deg, var(--accent), var(--cyan), var(--purple), var(--accent));
  opacity: 0.86;
  animation: spin 12s linear infinite;
}

.portrait-frame::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow:
    inset 0 0 42px rgba(59, 130, 246, 0.18),
    0 28px 72px rgba(0, 0, 0, 0.32);
}

.portrait-frame img,
.portrait-fallback {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  border-radius: 50%;
}

.portrait-frame img {
  object-fit: cover;
  background: var(--bg-2);
}

.portrait-frame.has-photo .portrait-fallback {
  display: none;
}

.portrait-fallback {
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  text-align: center;
  background:
    radial-gradient(circle at 50% 22%, rgba(147, 197, 253, 0.3), transparent 30%),
    linear-gradient(145deg, rgba(15, 23, 42, 0.94), rgba(30, 41, 59, 0.88));
}

.portrait-fallback span {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(3.7rem, 8vw, 5.8rem);
  font-weight: 700;
  color: var(--text);
}

.portrait-fallback small {
  color: var(--soft);
  max-width: 180px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.68rem;
}

.portrait-light {
  position: absolute;
  inset: 10%;
  z-index: 2;
  pointer-events: none;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 18%, rgba(255, 255, 255, 0.36), transparent 24%);
  mix-blend-mode: screen;
}

.console-card,
.console-core {
  position: absolute;
  border-radius: var(--radius);
  padding: 18px;
}

.console-card small,
.console-core span {
  display: block;
  color: var(--muted);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  margin-bottom: 7px;
}

.console-card strong,
.console-card code,
.console-core strong {
  display: block;
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1rem;
}

.console-card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.webhook {
  width: 275px;
  top: 36px;
  right: 8px;
  animation: floatY 6s ease-in-out infinite;
}

.mqtt {
  width: 260px;
  top: 152px;
  left: 0;
  animation: floatY 7s ease-in-out infinite -2s;
}

.worker {
  width: 238px;
  right: 18px;
  bottom: 146px;
  animation: floatY 6.5s ease-in-out infinite -1s;
}

.api {
  width: 220px;
  left: 34px;
  bottom: 48px;
  animation: floatY 5.5s ease-in-out infinite -3s;
}

.analytics {
  width: 246px;
  right: 120px;
  bottom: 12px;
  animation: floatY 8s ease-in-out infinite -4s;
}

.console-core {
  z-index: 3;
  width: 244px;
  left: 50%;
  top: 78%;
  transform: translate(-50%, -50%);
  border-color: rgba(52, 211, 153, 0.24);
}

.status-dot {
  width: 9px;
  height: 9px;
  display: inline-block;
  border-radius: 50%;
  margin-right: 6px;
  background: var(--success);
  box-shadow: 0 0 14px rgba(52, 211, 153, 0.72);
}

.mini-bars {
  display: flex;
  align-items: end;
  gap: 8px;
  height: 52px;
  margin-top: 14px;
}

.mini-bars span {
  flex: 1;
  border-radius: 999px 999px 0 0;
  background: linear-gradient(180deg, var(--cyan), var(--accent));
  animation: barPulse 1.8s ease-in-out infinite;
}

.mini-bars span:nth-child(1) { height: 44%; }
.mini-bars span:nth-child(2) { height: 78%; animation-delay: -0.4s; }
.mini-bars span:nth-child(3) { height: 58%; animation-delay: -0.8s; }
.mini-bars span:nth-child(4) { height: 90%; animation-delay: -1.1s; }

.scroll-down {
  position: absolute;
  left: 50%;
  bottom: 26px;
  width: 28px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 20px;
  transform: translateX(-50%);
}

.scroll-down span {
  position: absolute;
  left: 50%;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  animation: scrollDot 1.5s infinite;
}

.section-heading {
  margin-bottom: 48px;
}

.section-heading h2,
.section-copy h2 {
  margin: 16px 0 20px;
}

.profile-panel {
  min-height: 520px;
  border-radius: var(--radius);
  padding: 32px;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}

.profile-panel::before {
  content: "";
  position: absolute;
  inset: 10%;
  border-radius: 50%;
  background: conic-gradient(from 90deg, var(--accent), var(--purple), var(--cyan), var(--accent));
  filter: blur(18px);
  opacity: 0.18;
}

.profile-avatar {
  position: relative;
  width: 250px;
  height: 250px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background:
    linear-gradient(var(--bg-2), var(--bg-2)) padding-box,
    linear-gradient(135deg, var(--accent), var(--purple), var(--cyan)) border-box;
  border: 2px solid transparent;
  box-shadow: 0 0 72px rgba(59, 130, 246, 0.23);
  overflow: hidden;
  animation: profileFloat 7s ease-in-out infinite;
}

.profile-avatar img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 50%;
  object-fit: cover;
  object-position: center;
  padding: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.system-radar span {
  position: absolute;
  inset: 50%;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(59, 130, 246, 0.18);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: radar 4s ease-out infinite;
}

.system-radar span:nth-child(2) { animation-delay: 1s; }
.system-radar span:nth-child(3) { animation-delay: 2s; }

.tech-cloud {
  position: absolute;
  inset: auto 26px 26px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.tech-cloud span,
.chips span {
  color: var(--soft);
  border: 1px solid rgba(59, 130, 246, 0.26);
  background: rgba(59, 130, 246, 0.1);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.76rem;
  font-weight: 800;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 30px;
}

.stat-card {
  border-radius: var(--radius);
  padding: 18px;
}

.stat-card strong {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 2rem;
  color: var(--soft);
}

.stat-card span {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.skills-grid,
.projects-grid,
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.skills-grid {
  grid-template-columns: repeat(4, 1fr);
}

.skill-card,
.service-card,
.project-card,
.contact-form,
.testimonial-shell,
.timeline-item {
  border-radius: var(--radius);
  transition: transform 0.42s var(--ease), border 0.42s var(--ease), box-shadow 0.42s var(--ease), background 0.42s var(--ease), opacity 0.42s var(--ease), filter 0.42s var(--ease);
  will-change: transform, opacity;
}

.skill-card,
.service-card {
  padding: 24px;
}

.skill-card:hover,
.service-card:hover,
.timeline-item:hover {
  transform: translateY(calc(-8px + var(--float-depth, 0px)));
  border-color: var(--line-strong);
  box-shadow: 0 24px 70px rgba(59, 130, 246, 0.16);
}

.skill-card h3,
.service-card h3 {
  margin-bottom: 18px;
}

.skill-item {
  margin: 14px 0;
}

.skill-item span {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: var(--muted);
  margin-bottom: 8px;
  font-size: 0.9rem;
  font-weight: 700;
}

.skill-item span::after {
  content: attr(data-percent);
  color: var(--soft);
}

.skill-item b {
  display: block;
  height: 7px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.16);
  overflow: hidden;
}

.skill-item b::after {
  content: "";
  display: block;
  width: var(--level, 0%);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--cyan), var(--purple));
  box-shadow: 0 0 18px rgba(59, 130, 246, 0.44);
  transition: width 1.2s var(--ease);
}

.project-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 26px;
}

.tab {
  border: 1px solid var(--line);
  color: var(--muted);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 800;
  transition: 0.25s var(--ease);
}

.tab.active,
.tab:hover {
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  border-color: transparent;
}

.projects-grid {
  grid-template-columns: repeat(2, 1fr);
}

.projects-grid:has(.project-card:hover) .project-card:not(:hover) {
  opacity: 0.68;
  filter: saturate(0.88);
}

.project-card {
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  will-change: transform, opacity;
}

.project-card:hover {
  transform: translateY(-9px) scale(1.02);
  border-color: var(--line-strong);
  box-shadow: 0 28px 76px rgba(59, 130, 246, 0.18), 0 0 42px rgba(139, 92, 246, 0.12);
}

.project-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, transparent, rgba(59, 130, 246, 0.68), rgba(34, 211, 238, 0.5), rgba(139, 92, 246, 0.64), transparent);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.42s var(--ease);
}

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

.project-image {
  height: 210px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.16), transparent 24%),
    linear-gradient(135deg, rgba(30, 64, 175, 0.88), rgba(91, 33, 182, 0.74));
  transition: transform 0.5s var(--ease), filter 0.5s var(--ease);
  will-change: transform;
}

.project-card:hover .project-image {
  transform: translateY(-4px) scale(1.025);
  filter: brightness(1.04);
}

.project-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.55;
}

.project-image::after {
  content: "";
  position: absolute;
  inset: 26px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.24);
  background:
    linear-gradient(rgba(255, 255, 255, 0.22) 0 0) 18px 20px / 56% 10px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.14) 0 0) 18px 50px / 78% 8px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.14) 0 0) 18px 74px / 62% 8px no-repeat,
    linear-gradient(90deg, rgba(52, 211, 153, 0.7) 0 0) 18px 120px / 26% 20px no-repeat,
    linear-gradient(90deg, rgba(34, 211, 238, 0.65) 0 0) 42% 120px / 22% 20px no-repeat,
    linear-gradient(90deg, rgba(139, 92, 246, 0.7) 0 0) 70% 120px / 18% 20px no-repeat,
    rgba(6, 8, 22, 0.36);
  backdrop-filter: blur(12px);
}

.project-image.maintainhub { background: linear-gradient(135deg, #155e75, #1d4ed8); }
.project-image.attendance { background: linear-gradient(135deg, #064e3b, #2563eb); }
.project-image.booking { background: linear-gradient(135deg, #1e40af, #7c3aed); }
.project-image.nexroom { background: linear-gradient(135deg, #0f766e, #4f46e5); }
.project-image.softenx { background: linear-gradient(135deg, #334155, #2563eb); }
.project-image.door { background: linear-gradient(135deg, #0f172a, #0891b2); }
.project-image.security { background: linear-gradient(135deg, #111827, #7c2d12); }

.project-content {
  padding: 25px;
  transition: transform 0.45s var(--ease);
}

.project-card:hover .project-content {
  transform: translateY(-4px);
}

.project-type {
  color: var(--soft);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 800;
}

.project-content h3 {
  margin: 10px 0;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0;
}

.project-content ul,
.timeline-item ul {
  padding-left: 19px;
  color: var(--muted);
  margin-bottom: 18px;
}

.link-btn {
  border: 1px solid rgba(59, 130, 246, 0.34);
  color: var(--text);
  background: rgba(59, 130, 246, 0.1);
  border-radius: var(--radius);
  padding: 10px 13px;
  cursor: pointer;
  font-weight: 800;
  transition: 0.25s var(--ease);
}

.link-btn:hover {
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  transform: translateY(-2px);
}

.timeline {
  position: relative;
  width: min(960px, 100%);
  margin: 0 auto;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(transparent, var(--accent), var(--cyan), var(--purple), transparent);
  box-shadow: 0 0 22px rgba(59, 130, 246, 0.38);
}

.timeline::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: calc(var(--timeline-progress, 0) * 1%);
  transform: translateX(-50%);
  background: linear-gradient(var(--accent), var(--cyan), var(--purple));
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.48);
  transition: height 0.18s linear;
}

.timeline-item {
  position: relative;
  width: calc(50% - 34px);
  padding: 24px;
  margin: 0 0 30px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 30px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.8);
}

.timeline-item:nth-child(odd) {
  margin-left: auto;
}

.timeline-item:nth-child(odd)::before {
  left: -41px;
}

.timeline-item:nth-child(even)::before {
  right: -41px;
}

.timeline-item > span,
.service-card > span {
  color: var(--soft);
  font-weight: 800;
  font-size: 0.84rem;
}

.services-grid {
  grid-template-columns: repeat(4, 1fr);
}

.service-card {
  min-height: 215px;
}

.testimonial-shell {
  padding: 30px;
  overflow: hidden;
}

.testimonial-track {
  position: relative;
  min-height: 250px;
}

.testimonial-card {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: center;
  text-align: center;
  opacity: 0;
  transform: translateX(38px);
  transition: 0.55s var(--ease);
}

.testimonial-card.active {
  opacity: 1;
  transform: translateX(0);
}

.avatar {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  font-weight: 800;
}

.testimonial-card p {
  max-width: 760px;
  font-size: 1.16rem;
}

.testimonial-card span {
  color: var(--muted);
}

.testimonial-controls {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.testimonial-controls button,
.modal-close {
  min-width: 46px;
  height: 42px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  color: var(--text);
  background: var(--panel);
  cursor: pointer;
  font-weight: 800;
}

.contact-form {
  padding: 28px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
  color: var(--muted);
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  color: var(--text);
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 13px 14px;
  outline: none;
  transition: 0.25s var(--ease);
}

body.light .contact-form input,
body.light .contact-form textarea {
  background: rgba(255, 255, 255, 0.78);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.14), 0 0 24px rgba(59, 130, 246, 0.16);
}

.contact-methods {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.contact-methods a {
  color: var(--soft);
  font-weight: 800;
}

.form-status {
  min-height: 24px;
  color: var(--soft);
}

.footer {
  border-top: 1px solid var(--line);
  padding: 38px 0 24px;
  background: rgba(8, 13, 28, 0.66);
}

body.light .footer {
  background: rgba(255, 255, 255, 0.72);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 30px;
  align-items: start;
}

.footer-links,
.footer-social {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.footer a:hover {
  color: var(--soft);
}

.copyright {
  text-align: center;
  color: var(--muted);
  margin: 26px 0 0;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: grid;
  place-items: center;
  padding: 22px;
  background: rgba(0, 0, 0, 0.68);
  opacity: 0;
  pointer-events: none;
  transition: 0.3s var(--ease);
}

.modal.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  position: relative;
  width: min(930px, 100%);
  max-height: 88vh;
  overflow: auto;
  border-radius: var(--radius);
  padding: 34px;
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 0 12px;
}

.modal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 26px;
}

.modal-grid p,
.modal-grid li,
.modal-card > p {
  color: var(--muted);
}

.screenshots {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
}

.screenshots span {
  min-height: 120px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    linear-gradient(rgba(255, 255, 255, 0.16) 0 0) 18px 22px / 55% 10px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.1) 0 0) 18px 50px / 75% 8px no-repeat,
    rgba(59, 130, 246, 0.08);
}

.reveal {
  opacity: 0;
  transform: translate3d(0, 34px, 0);
  transition: opacity 0.88s var(--ease), transform 0.88s var(--ease);
  transition-delay: var(--delay, 0ms);
  will-change: transform, opacity;
}

.slide-left {
  transform: translateX(-32px);
}

.slide-right {
  transform: translateX(32px);
}

.reveal.visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  will-change: auto;
}

.skill-card.reveal.visible,
.service-card.reveal.visible {
  transform: translateY(var(--float-depth, 0px));
}

.skill-card.reveal.visible:hover,
.service-card.reveal.visible:hover {
  transform: translateY(calc(-8px + var(--float-depth, 0px)));
}

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

@keyframes blink {
  50% { opacity: 0; }
}

@keyframes gradientMove {
  50% { background-position: 100% 50%; }
}

@keyframes floatY {
  50% { transform: translateY(-16px); }
}

@keyframes floatBlob {
  50% { transform: translate3d(36px, -28px, 0) scale(1.1); }
}

@keyframes portraitFloat {
  0%, 100% { transform: translate(-50%, -50%) translateY(0); }
  50% { transform: translate(-50%, -50%) translateY(-14px); }
}

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

@keyframes scrollDot {
  0% { transform: translate(-50%, 0); opacity: 0; }
  30%, 70% { opacity: 1; }
  100% { transform: translate(-50%, 18px); opacity: 0; }
}

@keyframes radar {
  0% { opacity: 0.65; transform: translate(-50%, -50%) scale(0.48); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.25); }
}

@keyframes barPulse {
  50% { transform: scaleY(0.72); opacity: 0.72; }
}

@media (max-width: 1100px) {
  .skills-grid,
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 980px) {
  .hero-grid,
  .two-column,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

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

  .hero-visual {
    min-height: 500px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-panel {
    position: absolute;
    top: 76px;
    left: 20px;
    right: 20px;
    display: grid;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--panel-strong);
    backdrop-filter: blur(18px);
    opacity: 0;
    transform: translateY(-12px);
    pointer-events: none;
    transition: 0.25s var(--ease);
  }

  .nav-panel.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
}

@media (max-width: 700px) {
  .container {
    width: min(100% - 28px, 1180px);
  }

  .section {
    padding: 88px 0;
  }

  h1 {
    font-size: clamp(2.55rem, 13vw, 4.2rem);
  }

  .skills-grid,
  .services-grid,
  .projects-grid,
  .stats-grid,
  .modal-grid,
  .screenshots {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: auto;
  }

  .portrait-frame {
    position: relative;
    inset: auto;
    left: auto;
    top: auto;
    width: min(310px, 86%);
    margin: 0 auto 16px;
    transform: none;
    animation: mobilePortraitFloat 7s ease-in-out infinite;
  }

  .console-card,
  .console-core {
    position: relative;
    inset: auto;
    left: auto;
    right: auto;
    top: auto;
    bottom: auto;
    width: 100%;
    margin-bottom: 12px;
    animation: none;
    transform: none;
  }

  .timeline::before {
    left: 0;
  }

  .timeline::after {
    left: 0;
  }

  .timeline-item,
  .timeline-item:nth-child(odd) {
    width: calc(100% - 24px);
    margin-left: 24px;
  }

  .timeline-item::before,
  .timeline-item:nth-child(odd)::before,
  .timeline-item:nth-child(even)::before {
    left: -30px;
    right: auto;
  }

  .profile-panel {
    min-height: 430px;
  }

  .profile-avatar {
    width: 210px;
    height: 210px;
  }

  .cursor-glow {
    display: none;
  }
}

@keyframes mobilePortraitFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}