:root {
  --opening-height: 56px; /* height of the top welcome bar */
  --nav-height: 56px; /* fixed nav bar height */
  --content-gap: 24px;
  --max-width: 1100px;
  --accent: #ffd700;
}

/* ---------- Reset & base ---------- */
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial;
  color: white;
  line-height: 1.45;
  background: black;
  -webkit-font-smoothing: antialiased;
}

/* anchor offset so headings are not hidden by fixed nav */
h1,
h2,
h3,
.panel {
  scroll-margin-top: calc(var(--opening-height) + var(--nav-height) + 12px);
}

/* ---------- Top banner & fixed nav ---------- */

/* the fixed nav block below the opening box */
.site-nav {
  --pad: 16px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: black;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(10, 10, 10, 0.03);
}

.site-nav .nav-inner {
  width: 100%;
  max-width: var(--max-width);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  gap: 12px;
}

/* brand/logo on left */
.site-nav .logo {
  font-weight: 700;
  text-decoration: none;
  color: white;
  letter-spacing: 0.6px;
}

/* links on right */
.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 18px;
  align-items: center;
}

.nav-links a {
  position: relative;
  display: inline-block;
  text-decoration: none;
  color: white;
  padding: 8px 10px;
  border-radius: 6px;
  font-weight: 500;
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1), color 0.2s ease;
}

/* Hover 3D lift + underline animation */
/* use CSS variables with sensible fallbacks */
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: var(--u-left, 10%); /* default left offset */
  width: var(--u-width, 80%); /* default width (percentage of link) */
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: var(--u-origin, center); /* control reveal direction */
  transition: transform 0.25s ease;
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--accent);
  transform: translateY(-1.5px); /* increased from -2px → -5px */
}

.nav-links a:hover::after,
.nav-links a:focus::after {
  transform: scaleX(1); /* underline grows into view */
}

/* Make sure page content starts below opening + nav */
.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: calc(var(--opening-height) + var(--nav-height) + var(--content-gap))
    20px 80px;
}

/* ---------- Panels / Sections ---------- */
.panel {
  background: black;
  border-radius: 10px;
  padding: 22px;
  margin-bottom: 0px;
  margin-top: -80px;
}

/* ABOUT */
.about-panel .lead {
  margin-top: 0;
  color: white;
  font-weight: 500;
  font-size: clamp(16px, calc(1vw + 0.5rem), 20px);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 80px;
  margin-bottom: 14px;
}

/* Two-column layout for About intro */
.about-two-col {
  display: grid;
  grid-template-columns: 1.5fr 1fr; /* text wider, image on right */
  gap: 20px;
  align-items: center;
  margin-top: 6px;
  margin-bottom: 24px;
  padding-top: 100px;
  padding-bottom: 140px;
}

.about-text {
  margin-left: 0px;
}

#emoji-wave {
  font-size: clamp(1.9rem, 2vw + 1rem, 50px);
}

#emoji-downward {
  font-size: clamp(1.9rem, 2vw + 1rem, 40px);
  margin-left: 20px;
}

.about-me,
.youtube-heading,
.contact-text {
  font-weight: 700;
  font-size: clamp(1.8rem, calc(2vw + 1rem), 3rem);
  background: linear-gradient(
    90deg,
    #003cff,
    /* deep royal blue */ #008cff,
    /* bright cyan-blue */ #00b7ff,
    /* sky blue */ #0091ff,
    /* vibrant mid-blue */ #003cff
  ); /* back to royal blue */
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent; /* show gradient instead of solid color */
  animation: blueFlow 5s linear infinite;
  margin-right: 10px;
}

/* animation for moving gradient */
@keyframes blueFlow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* optional: accessibility preference */
@media (prefers-reduced-motion: reduce) {
  .about-me,
  .youtube-heading {
    animation: none;
    background-size: 100% 100%;
  }
}

/* Keep your existing .about-panel .lead style */
.about-photo {
  margin: 0;
}
.about-photo img {
  width: 90%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
  display: block;
  box-shadow: 0 10px 18px rgba(0, 0, 0, 0.08);
  margin-left: 35px;
}

/* Stack on small screens */
@media (max-width: 900px) {
  .about-two-col {
    grid-template-columns: 1fr;
  }
  .about-photo {
    order: 2; /* image below text on mobile */
    width: 80%;
    max-width: 500px;
    display: block;
    justify-self: center; /* centers horizontally in the single column */
  }
}

.skills {
  font-weight: bold;
  font-style: italic;
}

.card {
  position: relative;
  margin-bottom: 16px;
  border-radius: 8px;
  transition: transform 420ms cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 520ms cubic-bezier(0.22, 1, 0.36, 1), background-color 360ms ease,
    color 360ms ease;
  will-change: transform, box-shadow, background-color;
  /* initial subtle shadow */
  padding-left: 20px;
  padding-right: 13px;
  border: 0.1px solid #eee;
  font-size: clamp(16px, calc(1vw + 0.5rem), 18px);
  padding-top: 16px;
}

/* smoother hover: longer transform + softer easing + softer shadow change */
.card:hover {
  background-color: white; /* use background-color rather than background shorthand */
  color: black;
  transform: translate3d(0, -8px, 0); /* GPU friendly */
  box-shadow: 0 18px 30px rgba(0, 0, 0, 0.18); /* larger, softer shadow */
  z-index: 1;
}

/* anti-flicker helpers */
.card,
.card * {
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}
@media (prefers-reduced-motion: reduce) {
  .card,
  .card:hover {
    transition: none;
    transform: none;
  }
}

/* achievements */

.achievement-box {
  grid-column: 1 / 2;
  background: black;
  border: 1px solid #eee;
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.selected-achievement {
  margin: 0;
  margin-bottom: 15px;
}

.achievements {
  margin: 5px 0 0 0px;
}

/* ---------- Videos / Projects ---------- */

#Youtube-Channel {
  margin-top: 80px;
}

.panel .youtube-channel-intro {
  margin-top: 0;
  color: white;
  font-weight: 500;
  font-size: clamp(1rem, calc(1vw + 0.5rem), 1.25rem);
}

.video-list {
  display: grid;
  gap: 18px;
  margin-top: 0px;
}

.video-card h3 {
  margin: 0 0 8px 0;
  margin-top: 30px;
  margin-bottom: 30px;
}

.title {
  font-size: clamp(1.25rem, calc(1.5vw + 0.5rem), 1.75rem);
  font-weight: 700;
  background: linear-gradient(
    90deg,
    #10b981,
    #22c55e,
    #84cc16,
    #4ade80,
    #10b981
  );

  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent; /* show the gradient */
  animation: slide-grad 6s linear infinite;
}

/* animation that shifts the gradient */
@keyframes slide-grad {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  .title {
    animation: none;
    background-size: 100% 100%;
  }
}

/* responsive video */
.video-wrapper {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  background: #000;
  border-radius: 8px;
  overflow: hidden;
}
.video-wrapper iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* contact */
#contact {
  padding-bottom: 60px;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
  .site-nav .nav-inner {
    padding: 0 12px;
    gap: 8px;
  }

  .site-nav .logo {
    font-size: 15px;
  }
  .page {
    padding-left: 14px;
    padding-right: 14px;
  }
}

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
  .site-nav .nav-inner {
    padding: 0 12px;
    gap: 8px;
  }
  /* .nav-links { display: none; }  ← REMOVE or comment this line */
  .site-nav .logo {
    font-size: 15px;
  }
  .page {
    padding-left: 14px;
    padding-right: 14px;
  }
}

.nav-links a {
  font-size: clamp(12px, 1.8vw, 15px);
  padding: 6px 8px;
}

@media (min-width: 901px) and (max-width: 1200px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Accessibility focus */
a:focus {
  outline: 3px solid rgba(11, 102, 255, 0.14);
  outline-offset: 3px;
}

#contact {
  margin-top: 250px;
  margin-bottom: 150px;
}

#follow-me {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 80px;
}

.contact-text {
  text-align: center;
  margin-left: 20px;
  margin-top: 10px;
}

.social-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap; /* ensures wrapping if needed */
}

/* Responsive behavior */
@media (max-width: 500px) {
  .social-buttons {
    flex-direction: column; /* stack vertically */
    align-items: center; /* center buttons horizontally */
    gap: 12px; /* smaller gap for mobile */
  }

  .social-btn {
    width: 80%; /* make buttons stretch nicely on phone */
    max-width: 300px; /* prevent overly wide buttons */
    text-align: center;
  }
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 18px 80px;
  font-size: 20px;
  font-weight: 600;
  border-radius: 8px;
  color: white;
  text-decoration: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease,
    background-color 0.3s ease, filter 0.3s ease;
  margin-left: 15px;
}

/* LinkedIn button */
.social-btn.linkedin {
  background-color: #004891;
  padding: 18px 82px;
}

.social-btn.linkedin:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 18px rgba(10, 102, 194, 0.3);
  background-color: #0a66c2;
}

/* Instagram button */
.social-btn.instagram {
  background: linear-gradient(
    45deg,
    #f09433,
    #e6683c,
    #dc2743,
    #cc2366,
    #bc1888
  );
  padding: 18px 75px;
}

.social-btn.instagram:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 18px rgba(204, 35, 102, 0.4);
  filter: brightness(1.1);
}

/* YouTube button */
.social-btn.youtube {
  background-color: #c30000;
}

.social-btn.youtube:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 18px rgba(255, 0, 0, 0.4);
  background-color: #ff0000;
}

/* Optional: make icons slightly larger */
.social-btn i {
  font-size: 18px;
}