/* Skills grid & skill cards */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
  perspective: 800px;
}

.skill-card {
  position: relative;
  background: var(--card-bg);
  padding: 1rem;
  border-radius: 12px;
  text-align: center;
  font-weight: bold;
  overflow: hidden;
  cursor: default;
  transform-style: preserve-3d;
  transform-origin: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: var(--shadow);
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

.skill-card:nth-child(1) { animation-delay: 0.1s; }
.skill-card:nth-child(2) { animation-delay: 0.2s; }
.skill-card:nth-child(3) { animation-delay: 0.3s; }
.skill-card:nth-child(4) { animation-delay: 0.4s; }
.skill-card:nth-child(5) { animation-delay: 0.5s; }
.skill-card:nth-child(6) { animation-delay: 0.6s; }
.skill-card:nth-child(7) { animation-delay: 0.7s; }
.skill-card:nth-child(8) { animation-delay: 0.8s; }

.skill-card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.skill-card:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.skill-card:hover::before {
  opacity: 1;
  animation: glowMove 2s linear infinite;
}

.skill-card.tilt {
  box-shadow: 0 15px 25px rgba(0, 0, 0, 0.1);
}

@keyframes fadeInUp {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* Projects grid & cards */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
  perspective: 1000px;
}

.project-card {
  --mouse-x: 50%;
  --mouse-y: 50%;
  position: relative;
  background: var(--card-bg);
  padding: 1rem;
  border-radius: 10px;
  transition: transform 0.3s, box-shadow 0.3s;
  transform-style: preserve-3d;
  transform-origin: center;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.project-card::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: 12px;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), var(--accent-bg-secondary), var(--accent-bg) 80%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 0;
}

.project-card:hover::before { opacity: 1; }
.project-card > * { position: relative; z-index: 1; }
.project-card:hover { transform: translateY(-4px); }
.project-card h3 { color: var(--accent-color); }
.project-card a {
  display: inline-block;
  margin-top: 0.5rem;
  color: var(--accent-secondary);
  text-decoration: none;
  font-weight: bold;
}
.project-card a:hover { text-decoration: underline; }
.project-card.tilt { box-shadow: 0 15px 25px rgba(0, 0, 0, 0.15); }

/* Project modal / overlay */
.project-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .25);
  backdrop-filter: blur(2px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 3000;
  opacity: 0;
  transition: opacity .25s ease;
}

.project-overlay.visible { display: flex; }
.project-overlay.fade-in { opacity: 1; }

.project-modal {
  background: var(--card-bg);
  color: var(--text-color);
  width: min(720px, 92vw);
  max-height: 86vh;
  border-radius: 14px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, .35);
  overflow: hidden;
  opacity: 0;
}

.project-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 8px;
  background: var(--accent-color);
  color: #fff;
  font-size: 22px;
  cursor: pointer;
}

.project-close:hover { background: var(--accent-secondary); }

.project-modal-content {
  padding: 1.1rem 1.2rem 1.2rem;
  overflow-y: auto;
  max-height: 86vh;
}

.project-modal-content h3 {
  color: var(--accent-color);
  margin-bottom: .35rem;
}

.project-meta {
  margin: .8rem 0 1rem;
  display: grid;
  gap: .35rem;
}

.project-meta .meta-row {
  font-family: Poppins, sans-serif;
  font-size: .95rem;
  opacity: .9;
}

#project-modal-link {
  display: inline-block;
  margin-top: 0.5rem;
  color: var(--accent-secondary);
  text-decoration: none;
  font-weight: bold;
}

#project-modal-link:hover { text-decoration: underline; }

.project-card.skeleton { position: relative; overflow: hidden; }
.project-card.skeleton .skel-title,
.project-card.skeleton .skel-text,
.project-card.skeleton .skel-link {
  background: var(--skeleton-base);
  border-radius: 8px;
  margin-top: .6rem;
}
.project-card.skeleton .skel-title { height: 18px; width: 60%; }
.project-card.skeleton .skel-text { height: 12px; width: 100%; opacity: .9; }
.project-card.skeleton .skel-text.short { width: 75%; }
.project-card.skeleton .skel-link { height: 14px; width: 40%; margin-top: .8rem; }

.project-card.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, var(--skeleton-shine) 50%, transparent 100%);
  transform: translateX(-100%);
  animation: skel-shimmer 1.2s infinite;
  opacity: .6;
}

@keyframes skel-shimmer { 100% { transform: translateX(100%); } }

.project-clone {
  position: fixed;
  margin: 0;
  z-index: 3500;
  pointer-events: none;
  border-radius: 10px;
  overflow: hidden;
  background: var(--card-bg);
  box-shadow: var(--shadow);
  will-change: transform, opacity, filter;
}

@media (max-width: 768px) {
  .project-modal {
    width: 94vw;
    max-height: 84vh;
    border-radius: 12px;
  }
}

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

/* Timeline */
.timeline { gap: 1rem; margin-top: 1rem; }
.timeline-list {
  position: relative;
  margin: 1rem 0 0;
  padding-left: 1.25rem;
}
.timeline-list::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-bg-secondary), var(--accent-bg));
  opacity: .35;
}
.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: .75rem;
  padding: .7rem 0 .7rem .2rem;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .45s ease, transform .45s ease;
}
.timeline-item.revealed { opacity: 1; transform: translateY(0); }
.timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-top: .35rem;
  background: var(--accent-color);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent-color) 25%, transparent);
}
.timeline-content {
  background: var(--card-bg);
  border: 1px solid rgba(0, 0, 0, .06);
  border-radius: 10px;
  padding: .8rem .9rem;
  box-shadow: var(--shadow);
}
.timeline-date {
  font-family: Poppins, sans-serif;
  font-size: .9rem;
  opacity: .8;
  margin-bottom: .2rem;
}
.timeline-content h3 {
  color: var(--accent-color);
  margin: .15rem 0 .35rem;
  font-size: 1.05rem;
}
.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  margin-top: .4rem;
}
.timeline-tag {
  font-size: .78rem;
  padding: .15rem .45rem;
  border-radius: 999px;
  background: var(--accent-bg);
  color: #fff;
}

.skeleton {
  position: relative;
  background: linear-gradient(90deg, rgba(255, 255, 255, .08) 25%, rgba(255, 255, 255, .18) 37%, rgba(255, 255, 255, .08) 63%);
  border-radius: 6px;
  animation: skeleton-loading 1.2s infinite linear;
}
@keyframes skeleton-loading {
  0% { background-position: 0 0; background-size: 400% 100%; }
  100% { background-position: 100% 0; background-size: 400% 100%; }
}

@media (max-width: 768px) {
  .timeline { gap: .75rem; margin-top: 1rem; }
  .timeline-list { padding-left: .75rem; }
  .timeline-list::before { left: 10px; }
}

/* Achievements */
.achievement-list {
  list-style: disc;
  padding-left: 1.5rem;
  margin-top: 1rem;
}

li p {
  font-family: 'Segoe UI', sans-serif;
  font-size: 0.9rem;
}

/* Contact form */
form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

input,
textarea,
button {
  padding: 0.75rem;
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--text-color);
  border: 1px solid #ccc;
  box-shadow: var(--shadow);
  font-size: 1rem;
  transition: border 0.3s ease, box-shadow 0.3s ease;
}

input:focus,
textarea:focus {
  border: 1px solid var(--accent-color);
  outline: none;
  box-shadow: 0 15px 25px rgba(0, 0, 0, 0.15);
}

textarea {
  resize: vertical;
  min-height: 100px;
}

button {
  background: var(--accent-color);
  color: #fff;
  border: none;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover { background: var(--accent-secondary); }

/* Footer */
.footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  background: var(--card-bg);
  box-shadow: var(--shadow);
}

.site-stats {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-color);
  opacity: 0.7;
}

.social-links {
  margin-top: 0.5rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.social-icon {
  width: 28px;
  height: 28px;
  filter: grayscale(100%) brightness(1.2);
  transition: filter 0.3s ease, transform 0.2s ease;
}

.social-icon:hover {
  filter: none;
  transform: scale(1.1);
}

/* Terminal trigger/modal */
#open-terminal {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  background: var(--accent-color);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 0.8rem;
  font-family: 'IntelOneMono', monospace;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  box-shadow: var(--shadow);
  transition: background 0.3s ease;
}

#open-terminal:hover { background: var(--accent-secondary); }

.terminal-modal {
  display: none;
  flex-direction: column;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--section-bg);
  border: 2px solid var(--accent-color);
  border-radius: 10px;
  width: 500px;
  max-width: 90%;
  height: 500px;
  z-index: 2000;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.terminal-header {
  background: var(--accent-bg);
  color: #fff;
  padding: 0.5rem;
  font-family: 'IntelOneMono', monospace;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#close-terminal {
  background: rgba(0, 0, 0, 0);
  height: 30px;
  width: 30px;
  padding: 0;
  border: none;
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: none;
}

.terminal-output {
  flex: 1;
  padding: 0.5rem;
  font-family: 'IntelOneMono', monospace;
  font-size: 0.9rem;
  color: var(--text-color);
  overflow-y: auto;
  background: var(--card-bg);
}

.line,
.line span {
  font-family: 'IntelOneMono', monospace;
}

#terminal-input {
  border: none;
  border-top: 1px solid var(--accent-color);
  padding: 0.5rem;
  font-family: 'IntelOneMono', monospace;
  font-size: 0.9rem;
  background: var(--card-bg);
  color: var(--text-color);
  outline: none;
  width: 100%;
}

#terminal-input::placeholder { opacity: .6; }

.terminal-controls {
  display: none;
  justify-content: space-between;
  background: var(--accent-bg);
  margin-bottom: 5rem;
  padding: 0.3rem;
  border-top: 1px solid var(--accent-color);
}

.terminal-controls button {
  flex: 1;
  margin: 0 0.2rem;
  padding: 0.4rem;
  font-family: 'IntelOneMono', monospace;
  font-size: 1rem;
  background: var(--accent-color);
  border: none;
  color: #fff;
  border-radius: 4px;
  cursor: pointer;
}

.terminal-controls button:hover { background: var(--accent-secondary); }

@media(max-width:768px) {
  .terminal-modal {
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    transform: none;
    max-width: 100%;
    width: 100%;
    height: 100vh;
    border-radius: 0;
    border-width: 0 0 2px 0;
  }

  .terminal-header {
    height: 40px;
    flex: 0 0 40px;
    padding: .4rem .6rem;
  }

  .terminal-output {
    flex: 1 1 auto;
    overflow-y: auto;
  }

  #terminal-input {
    flex: 0 0 42px;
    font-size: .85rem;
  }

  .terminal-controls { display: flex; }
  .terminal-controls button { font-size: 1rem; padding: .35rem 0; }
  body.modal-open { overflow: hidden; }
}

#snake-screen {
  font-family: 'IntelOneMono', monospace;
  white-space: pre;
  color: var(--text-color);
  user-select: none;
  line-height: .63;
}

.snake-hud {
  margin-bottom: .25rem;
  opacity: .8;
  font-size: 0.85rem;
}