@charset "UTF-8";
/*!
    Portfolio – Executive Tech Presence
    Author: Akshay Seth
*/
/*──────────────────────────────────────
  1. Design Tokens
──────────────────────────────────────*/
/*──────────────────────────────────────
  2. Mixins
──────────────────────────────────────*/
/*──────────────────────────────────────
  3. Global Styles
──────────────────────────────────────*/
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  font-family: "Inter", "Lato", sans-serif;
  font-size: 24px;
  background: #080d18;
  color: #cbd5e1;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body.active {
  overflow: hidden;
  z-index: -1;
}

.no-js #experience-timeline > div {
  background: #141e32;
  padding: 16px;
  margin-bottom: 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
}
.no-js #experience-timeline > div h3 {
  font-size: 1.4em;
  font-weight: 600;
  color: #f1f5f9;
  display: inline-block;
  margin: 0;
}
.no-js #experience-timeline > div h4 {
  font-size: 0.95em;
  font-weight: 500;
  color: #38bdf8;
  margin: 4px 0 12px;
}
.no-js #experience-timeline > div p {
  color: #cbd5e1;
  font-size: 0.9em;
  margin: 0;
}
.no-js #experience-timeline:before, .no-js #experience-timeline:after {
  content: none;
}

@keyframes dropHeader {
  0% {
    transform: translateY(-100%);
  }
  100% {
    transform: translateY(0);
  }
}
@keyframes pulsate {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
}
@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(24px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes blink {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}
/*──────────────────────────────────────
  4. Header / Nav
──────────────────────────────────────*/
header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  text-align: center;
  z-index: 10;
  animation: dropHeader 0.65s cubic-bezier(0.16, 1, 0.3, 1) 1 both;
}
@media (prefers-reduced-motion: reduce) {
  header {
    animation: none;
  }
}
header ul {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(15, 22, 36, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-top: none;
  text-align: center;
  padding: 8px 12px;
  margin: 0;
  border-radius: 0 0 14px 14px;
  list-style: none;
}
header li {
  display: inline-block;
}
header a {
  display: block;
  color: #94a3b8;
  padding: 8px 16px;
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  border-radius: 8px;
  transition: 140ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
header a:hover {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  text-decoration: none;
}
header a:focus-visible {
  outline: 2px solid #38bdf8;
  outline-offset: 2px;
  color: #38bdf8;
  text-decoration: none;
}
header a.active {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
}
header.active {
  display: block;
}
header.sticky {
  position: fixed;
  z-index: 999;
}

#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left;
  background: #38bdf8;
  z-index: 9999;
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.5);
  transition: transform 80ms linear;
  pointer-events: none;
}

#menu.active {
  display: block;
}

#mobile-menu-open {
  display: none;
  cursor: pointer;
  position: fixed;
  right: 16px;
  top: 12px;
  color: #38bdf8;
  font-size: 1.35em;
  z-index: 20;
  padding: 8px 12px;
  border-radius: 8px;
  background: #141e32;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: 140ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
#mobile-menu-open:hover {
  border-color: rgba(56, 189, 248, 0.28);
}

#mobile-menu-close {
  display: none;
  text-align: right;
  width: 100%;
  background: #0f1624;
  font-size: 1.35em;
  padding: 12px 16px 0;
  cursor: pointer;
  color: #38bdf8;
}
#mobile-menu-close span {
  font-size: 0.5em;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
#mobile-menu-close i {
  vertical-align: middle;
}

/*──────────────────────────────────────
  Footer + Social
──────────────────────────────────────*/
footer {
  padding: 48px 0;
  background: #0f1624;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.copyright {
  padding-top: 20px;
}
.copyright p {
  margin: 0;
  color: #64748b;
  font-size: 1.3rem;
}

.top {
  text-align: center;
}
.top span {
  cursor: pointer;
  display: block;
  margin: 16px auto 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid rgba(56, 189, 248, 0.28);
  text-align: center;
  transition: 140ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
.top span:hover {
  border-color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
}
.top i {
  color: #38bdf8;
  line-height: 32px;
}

.social {
  text-align: right;
}
.social ul {
  margin: 8px 0 0;
  padding: 0;
}
.social li {
  display: inline-block;
  font-size: 1.1em;
  list-style: none;
}
.social a {
  display: block;
  color: #64748b;
  padding: 12px;
  border-radius: 8px;
  transition: 140ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
.social a:hover {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
}

/*──────────────────────────────────────
  Utilities
──────────────────────────────────────*/
.btn-rounded-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #ffffff;
  padding: 12px 24px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: 240ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
.btn-rounded-white:hover {
  color: #080d18;
  background: #ffffff;
  border-color: #ffffff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(56, 189, 248, 0.2);
}
.btn-rounded-white:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 3px;
  text-decoration: none;
}

.shadow {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.6), 0 4px 24px rgba(0, 0, 0, 0.45);
}

.shadow-large {
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6), 0 2px 8px rgba(0, 0, 0, 0.4);
}

.heading {
  position: relative;
  display: inline-block;
  font-size: 3.4rem;
  font-weight: 700;
  color: #f1f5f9;
  margin: 0 0 32px;
  letter-spacing: -0.02em;
}
.heading:after {
  position: absolute;
  content: "";
  top: 100%;
  height: 3px;
  width: 40px;
  left: 0;
  margin-top: 8px;
  background: linear-gradient(90deg, #38bdf8, transparent);
  border-radius: 2px;
}
html.js .heading::after {
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 400ms cubic-bezier(0.16, 1, 0.3, 1);
}
html.js .heading.heading-revealed::after {
  transform: scaleX(1);
}
html.js .skill-chip {
  opacity: 0;
  transform: translateY(8px) scale(0.9);
  transition: opacity 220ms ease, transform 220ms cubic-bezier(0.16, 1, 0.3, 1);
}
html.js .skill-chip.chip-visible {
  opacity: 1;
  transform: none;
}

.background-alt {
  background: #0b1120;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 420ms cubic-bezier(0.16, 1, 0.3, 1), transform 420ms cubic-bezier(0.16, 1, 0.3, 1);
}
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal-delay-1 {
  transition-delay: 80ms;
}

.reveal-delay-2 {
  transition-delay: 160ms;
}

.reveal-delay-3 {
  transition-delay: 240ms;
}

.reveal-delay-4 {
  transition-delay: 320ms;
}

/*──────────────────────────────────────
  5. Hero / Lead
──────────────────────────────────────*/
#lead {
  position: relative;
  height: 100vh;
  min-height: 600px;
  max-height: 1200px;
  background: #080d18;
  padding: 16px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
#lead::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 160px;
  background: linear-gradient(to bottom, transparent, #080d18);
  z-index: 9;
  pointer-events: none;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.45;
}

#lead-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8, 13, 24, 0.93) 0%, rgba(10, 18, 40, 0.88) 55%, rgba(6, 18, 46, 0.85) 100%);
  z-index: 1;
}
#lead-overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 65% 55% at 50% 65%, rgba(56, 189, 248, 0.07) 0%, transparent 70%);
}

#lead-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 860px;
  padding: 0 16px;
  animation: fadeInUp 0.85s cubic-bezier(0.16, 1, 0.3, 1) both;
}
@media (prefers-reduced-motion: reduce) {
  #lead-content {
    animation: none;
  }
}
#lead-content h1, #lead-content h2 {
  margin: 0;
}
#lead-content h1 {
  color: #ffffff;
  font-weight: 800;
  font-size: clamp(3rem, 7vw, 6rem);
  letter-spacing: -0.035em;
  line-height: 1;
  margin-bottom: 12px;
}
#lead-content h2 {
  color: #38bdf8;
  font-weight: 500;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
  opacity: 0.9;
}

.lead-tagline {
  color: rgba(255, 255, 255, 0.5);
  font-size: 1.55rem;
  max-width: 480px;
  margin: 0 auto 24px;
  line-height: 1.65;
  font-weight: 400;
}

.lead-metrics {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  margin: 0 auto 32px;
  flex-wrap: wrap;
  max-width: 560px;
}
.lead-metrics .metric {
  text-align: center;
  padding: 0 32px;
}
.lead-metrics .metric .metric-value {
  display: block;
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1;
}
.lead-metrics .metric .metric-label {
  display: block;
  font-size: 1.1rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 4px;
}
.lead-metrics .metric:not(:last-child) {
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

#lead-down {
  position: absolute;
  left: 0;
  right: 0;
  width: 100%;
  text-align: center;
  z-index: 10;
  bottom: 24px;
  color: #ffffff;
}
#lead-down span {
  cursor: pointer;
  display: block;
  margin: 0 auto;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(56, 189, 248, 0.5);
  background: rgba(8, 13, 24, 0.55);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.1), 0 0 22px rgba(56, 189, 248, 0.2);
  text-align: center;
  transition: 240ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
#lead-down span:hover {
  border-color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.25), 0 0 32px rgba(56, 189, 248, 0.35);
  transform: translateY(2px);
}
#lead-down i {
  animation: pulsate 2s ease infinite;
  padding-top: 14px;
  color: #38bdf8;
  font-size: 1em;
}
@media (prefers-reduced-motion: reduce) {
  #lead-down i {
    animation: none;
  }
}

.typing-cursor::after {
  content: "|";
  display: inline-block;
  margin-left: 2px;
  animation: blink 800ms step-start infinite;
  color: #38bdf8;
}

/*──────────────────────────────────────
  6. About
──────────────────────────────────────*/
#about {
  padding: 80px 16px;
  background: #080d18;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
#about h2 {
  color: #f1f5f9;
}
#about p {
  color: #cbd5e1;
  margin: 0 0 16px;
  font-size: 1.45rem;
  line-height: 1.8;
}
#about p:last-child {
  margin-bottom: 0;
}

/*──────────────────────────────────────
  7. Experience
──────────────────────────────────────*/
#experience {
  padding: 80px 16px;
  text-align: center;
  background: #0b1120;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
#experience h2 {
  color: #f1f5f9;
}

#experience-timeline {
  margin: 32px auto 0;
  position: relative;
  max-width: 1000px;
}
#experience-timeline:before {
  position: absolute;
  content: "";
  top: 0;
  bottom: 0;
  left: 303px;
  height: 100%;
  width: 2px;
  background: linear-gradient(to bottom, #38bdf8, rgba(56, 189, 248, 0.08));
  z-index: 0;
}
#experience-timeline:after {
  position: absolute;
  content: "";
  width: 2px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(56, 189, 248, 0.15), transparent);
  top: 100%;
  left: 303px;
}

html.js #experience-timeline::before {
  display: none;
}

.timeline-line-track {
  position: absolute;
  top: 0;
  left: 303px;
  width: 2px;
  height: 100%;
  background: linear-gradient(to bottom, #38bdf8, rgba(56, 189, 248, 0.08));
  transform: scaleY(0);
  transform-origin: top;
  z-index: 0;
  pointer-events: none;
}

.vtimeline-enter-left,
.vtimeline-enter-right {
  opacity: 0;
  transition: opacity 500ms cubic-bezier(0.16, 1, 0.3, 1), transform 500ms cubic-bezier(0.16, 1, 0.3, 1);
}

.vtimeline-enter-left {
  transform: translateX(-40px);
}

.vtimeline-enter-right {
  transform: translateX(40px);
}

.vtimeline-enter-left.is-visible,
.vtimeline-enter-right.is-visible {
  opacity: 1;
  transform: none;
}

@media only screen and (max-width: 750px) {
  .vtimeline-enter-left,
  .vtimeline-enter-right {
    transform: translateY(20px);
  }
}

.vtimeline-content {
  margin-left: 350px;
  background: #141e32;
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 20px 24px;
  border-radius: 14px;
  text-align: left;
  transition: 240ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
.vtimeline-content:hover {
  border-color: rgba(56, 189, 248, 0.28);
  box-shadow: 0 0 28px rgba(56, 189, 248, 0.14);
  transform: translateY(-2px);
}
.vtimeline-content h3 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #f1f5f9;
  display: inline-block;
  margin: 0;
}
.vtimeline-content h4 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #38bdf8;
  margin: 3px 0 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.vtimeline-content p {
  color: #cbd5e1;
  font-size: 1.35rem;
  margin: 0;
  line-height: 1.7;
}

.vtimeline-point {
  position: relative;
  display: block;
  vertical-align: top;
  margin-bottom: 24px;
}

.vtimeline-icon {
  position: relative;
  color: #080d18;
  width: 44px;
  height: 44px;
  background: #38bdf8;
  border-radius: 50%;
  float: left;
  z-index: 99;
  margin-left: 282px;
  box-shadow: 0 0 0 4px #0b1120, 0 0 28px rgba(56, 189, 248, 0.14);
}
.vtimeline-icon i {
  display: block;
  font-size: 1.1em;
  margin-top: 12px;
  text-align: center;
}

.vtimeline-date {
  width: 260px;
  text-align: right;
  position: absolute;
  left: 0;
  top: 12px;
  font-weight: 600;
  font-size: 1.25rem;
  color: #64748b;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/*──────────────────────────────────────
  8. Education
──────────────────────────────────────*/
#education {
  padding: 80px 16px 64px;
  background: #080d18;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
}
#education h2 {
  color: #f1f5f9;
  margin-bottom: 48px;
}

.education-block {
  max-width: 700px;
  margin: 0 auto 32px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  background: #141e32;
  text-align: left;
  transition: 240ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
.education-block:hover {
  border-color: rgba(56, 189, 248, 0.28);
  box-shadow: 0 0 28px rgba(56, 189, 248, 0.14);
}
.education-block h3 {
  font-weight: 700;
  float: left;
  margin: 0;
  color: #f1f5f9;
  font-size: 1.55rem;
}
.education-block span {
  color: #38bdf8;
  float: right;
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.education-block h4 {
  color: #94a3b8;
  clear: both;
  font-weight: 500;
  margin: 8px 0 12px;
  font-size: 1.35rem;
}
.education-block p, .education-block ul {
  margin: 0;
  color: #cbd5e1;
  font-size: 1.35rem;
}
.education-block ul {
  padding: 0 0 0 16px;
}

/*──────────────────────────────────────
  9. Projects
──────────────────────────────────────*/
#projects {
  padding: 80px 16px;
  background: #0b1120;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
}
#projects h2 {
  color: #f1f5f9;
  margin-bottom: 48px;
}

.project {
  position: relative;
  max-width: 900px;
  margin: 0 auto 24px;
  overflow: hidden;
  background: #141e32;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: 240ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
.project:hover {
  border-color: rgba(56, 189, 248, 0.28);
  box-shadow: 0 0 28px rgba(56, 189, 248, 0.14);
  transform: translateY(-3px);
}

.project-image {
  float: left;
}

.project-info {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  margin-left: 300px;
  padding: 24px;
}
.project-info h3 {
  font-size: 1.7rem;
  font-weight: 700;
  color: #f1f5f9;
  margin: 0 0 12px;
}
.project-info p {
  color: #cbd5e1;
  margin: 0 0 16px;
  font-size: 1.35rem;
  line-height: 1.65;
}
.project-info a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #38bdf8;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: 140ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
.project-info a:hover {
  color: #7dd3fc;
  text-decoration: none;
}

.no-image .project-info {
  position: relative;
  margin: 0;
  padding: 32px 24px;
  transform: none;
}

#more-projects {
  display: none;
}

/*──────────────────────────────────────
  10. Technical Depth / Skills
──────────────────────────────────────*/
#skills {
  padding: 80px 16px;
  background: #080d18;
  text-align: center;
}
#skills h2 {
  color: #f1f5f9;
  margin-bottom: 48px;
}
#skills > ul {
  display: none;
}

.skill-categories {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 20px;
  text-align: left;
}

.skill-category {
  background: #141e32;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  padding: 20px 24px;
  transition: 240ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
.skill-category:hover {
  border-color: rgba(56, 189, 248, 0.28);
  box-shadow: 0 0 28px rgba(56, 189, 248, 0.14);
}
.skill-category .skill-category-label {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
  color: #38bdf8;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.skill-category .skill-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.skill-category .skill-chip {
  background: rgba(56, 189, 248, 0.07);
  border: 1px solid rgba(56, 189, 248, 0.14);
  border-radius: 999px;
  padding: 5px 16px;
  font-size: 1.3rem;
  color: #94a3b8;
  list-style: none;
  cursor: default;
  transition: 140ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
.skill-category .skill-chip:hover {
  background: rgba(56, 189, 248, 0.1);
  border-color: #38bdf8;
  color: #ffffff;
}

/*──────────────────────────────────────
  11. Contact
──────────────────────────────────────*/
#contact {
  padding: 80px 16px;
  background: linear-gradient(135deg, #035f8c 0%, #012540 100%);
  text-align: center;
}
#contact h2 {
  margin: 0 0 12px;
  color: #ffffff;
  font-weight: 700;
  font-size: 3.2rem;
  letter-spacing: -0.02em;
}

#contact-form {
  max-width: 520px;
  margin: 0 auto;
}
#contact-form input, #contact-form textarea {
  display: block;
  width: 100%;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  margin-bottom: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  font-family: "Inter", "Lato", sans-serif;
  font-size: 1.4rem;
  transition: 140ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
#contact-form input::-webkit-input-placeholder, #contact-form textarea::-webkit-input-placeholder {
  color: rgba(255, 255, 255, 0.45);
}
#contact-form input:-moz-placeholder, #contact-form textarea:-moz-placeholder {
  color: rgba(255, 255, 255, 0.45);
  opacity: 1;
}
#contact-form input::-moz-placeholder, #contact-form textarea::-moz-placeholder {
  color: rgba(255, 255, 255, 0.45);
  opacity: 1;
}
#contact-form input:-ms-input-placeholder, #contact-form textarea:-ms-input-placeholder {
  color: rgba(255, 255, 255, 0.45);
}
#contact-form input:focus, #contact-form textarea:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.13);
  border-color: rgba(255, 255, 255, 0.45);
}
#contact-form textarea {
  height: 140px;
  resize: none;
}
#contact-form button {
  display: block;
  width: 100%;
  background: #ffffff;
  border-radius: 8px;
  padding: 12px 16px;
  border: none;
  color: #035f8c;
  font-weight: 700;
  font-size: 1.4rem;
  font-family: "Inter", "Lato", sans-serif;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: 240ms cubic-bezier(0.16, 1, 0.3, 1) all;
}
#contact-form button:hover {
  background: rgba(255, 255, 255, 0.92);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}
#contact-form button:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 3px;
}

/*──────────────────────────────────────
  12. Optional Section
──────────────────────────────────────*/
.optional-section {
  padding: 80px 16px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: #080d18;
}
.optional-section h2 {
  color: #f1f5f9;
}

.optional-section-block {
  max-width: 700px;
  margin: 0 auto 32px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  background: #141e32;
  text-align: left;
}
.optional-section-block h3 {
  font-weight: 700;
  margin: 0 0 16px;
  color: #f1f5f9;
}
.optional-section-block h4 {
  color: #94a3b8;
  clear: both;
  font-weight: 500;
  margin: 0 0 16px;
}
.optional-section-block p, .optional-section-block ul {
  margin: 0 0 16px;
  color: #cbd5e1;
  font-size: 1.2rem;
}
.optional-section-block ul {
  padding: 0 0 0 16px;
}

/*──────────────────────────────────────
  13. Media Queries
──────────────────────────────────────*/
@media only screen and (max-width: 750px) {
  #experience-timeline:before, #experience-timeline:after {
    left: 23px;
  }
  .timeline-line-track {
    left: 23px;
  }
  .vtimeline-date {
    width: auto;
    text-align: left;
    position: relative;
    margin-bottom: 12px;
    display: block;
    margin-left: 68px;
  }
  .vtimeline-icon {
    margin-left: 0;
  }
  .vtimeline-content {
    margin-left: 68px;
  }
}
@media only screen and (max-width: 992px) {
  #lead {
    height: auto;
    min-height: 100vh;
    min-height: 100dvh;
    max-height: none;
    padding: 110px 16px 80px;
  }
  #lead-content {
    position: relative;
    transform: none;
    left: auto;
    top: auto;
  }
  .lead-metrics {
    gap: 0;
  }
  #about {
    text-align: center;
  }
  #about p {
    text-align: left;
  }
}
@media only screen and (max-width: 768px) {
  header {
    position: fixed;
    display: none;
    z-index: 999;
    animation: none;
    bottom: 0;
    height: 100%;
  }
  header ul {
    display: flex;
    flex-direction: column;
    border-radius: 0;
    height: 100%;
    padding: 32px 20px;
    gap: 8px;
  }
  #mobile-menu-open, #mobile-menu-close {
    display: block;
  }
  #menu {
    height: 100%;
    overflow-y: auto;
    box-shadow: none;
    border-radius: 0;
    width: 100%;
  }
  #menu li {
    display: block;
    margin-bottom: 8px;
  }
  #lead-down {
    display: none;
  }
  .lead-metrics .metric {
    padding: 0 20px;
  }
  .education-block h3, .education-block span {
    float: none;
  }
  .project-image {
    display: none;
  }
  .project-info {
    position: relative;
    margin: 0;
    padding: 24px 20px;
    top: auto;
    transform: none;
  }
  footer {
    text-align: center;
  }
  .social {
    text-align: center;
  }
  .skill-categories {
    grid-template-columns: 1fr;
  }
}
@media only screen and (max-width: 480px) {
  #lead-content h1 {
    font-size: 3rem;
  }
  #lead-content h2 {
    font-size: 1.5rem;
  }
  #lead-content a {
    font-size: 1.3rem;
    padding: 8px 20px;
  }
  .lead-metrics {
    gap: 0;
  }
  .lead-metrics .metric {
    padding: 0 16px;
  }
  .lead-metrics .metric .metric-value {
    font-size: 2rem;
  }
  .lead-metrics .metric .metric-label {
    font-size: 1.05rem;
  }
}