/* ============================================================
   NULL//POINT — Components
   ============================================================ */

/* =================== HEADER / NAV =================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
  border-bottom: 1px solid transparent;
  transition: background var(--dur-med) var(--ease-out),
    border-color var(--dur-med) var(--ease-out);
}
.site-header.is-scrolled {
  background: rgba(5, 5, 5, 0.78);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--hairline);
}
.scroll-progress {
  position: absolute;
  bottom: -1px;
  left: 0;
  height: 1px;
  width: 100%;
  transform-origin: left;
  transform: scaleX(0);
  background: var(--gradient-brand);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.brand img.np-logo {
  height: 38px;
  width: auto;
  /* The brand PNG is black artwork on a transparent background, so it is
     invisible on our dark canvas. Invert it to a clean white mark. */
  filter: invert(1) brightness(1.1);
  transition: filter var(--dur-fast) ease;
}
.brand:hover img.np-logo {
  filter: invert(1) brightness(1.3);
}
.brand img.ksit-logo {
  height: 34px;
  width: auto;
  opacity: 0.9;
}
.brand .brand-name {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
}
.brand .brand-name::after {
  content: "_";
  color: var(--accent);
  animation: blink 1.2s steps(1) infinite;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 2.2rem);
}
.nav-link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.4rem 0;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--text-primary);
}
.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--accent);
}

.nav-item {
  position: relative;
}
.dropdown {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  translate: -50% 0;
  min-width: 260px;
  background: rgba(12, 12, 14, 0.96);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--dur-fast) var(--ease-out);
}
.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown,
.nav-item.is-open .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown a {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: background var(--dur-fast) ease, color var(--dur-fast) ease;
}
.dropdown a:hover {
  background: var(--accent-dim);
  color: var(--text-primary);
}
.btn-gh {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline-strong);
  color: var(--text-primary);
  transition: all var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}
.btn-gh svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}
.btn-gh:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.18);
}

.burger {
  display: none;
  width: 44px;
  height: 44px;
  position: relative;
  z-index: calc(var(--z-menu) + 2);
}
.burger span {
  display: block;
  width: 24px;
  height: 1.6px;
  background: var(--text-primary);
  margin: 5px auto;
  transition: transform var(--dur-med) var(--ease-spring),
    opacity var(--dur-fast) ease;
}
.burger.is-open span:nth-child(1) {
  transform: translateY(6.6px) rotate(45deg);
}
.burger.is-open span:nth-child(2) {
  opacity: 0;
}
.burger.is-open span:nth-child(3) {
  transform: translateY(-6.6px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-menu);
  background: rgba(5, 5, 5, 0.97);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(2rem, 8vw, 5rem);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-med) var(--ease-out),
    visibility 0s linear var(--dur-med);
}
.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}
.mobile-menu a.mm-item {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 7.5vw, 3rem);
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.32em 0;
  border-bottom: 1px solid var(--hairline);
  opacity: 0;
  transform: translateY(24px);
}
.mobile-menu.is-open a.mm-item {
  animation: mm-in var(--dur-med) var(--ease-out) forwards;
}
.mobile-menu.is-open a.mm-item:nth-of-type(1) { animation-delay: 0.05s; }
.mobile-menu.is-open a.mm-item:nth-of-type(2) { animation-delay: 0.11s; }
.mobile-menu.is-open a.mm-item:nth-of-type(3) { animation-delay: 0.17s; }
.mobile-menu.is-open a.mm-item:nth-of-type(4) { animation-delay: 0.23s; }
.mobile-menu.is-open a.mm-item:nth-of-type(5) { animation-delay: 0.29s; }
.mobile-menu.is-open a.mm-item:nth-of-type(6) { animation-delay: 0.35s; }
.mobile-menu.is-open a.mm-item:nth-of-type(7) { animation-delay: 0.41s; }
@keyframes mm-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.mobile-menu a.mm-item .mm-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
}
.mobile-menu a.mm-item.sub {
  font-size: clamp(1.2rem, 4.4vw, 1.6rem);
  color: var(--text-secondary);
}
.mm-footer {
  margin-top: var(--space-lg);
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

@media (max-width: 860px) {
  .nav-desktop,
  .btn-gh.header-gh {
    display: none;
  }
  .burger {
    display: block;
  }
}

/* =================== BUTTONS =================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: 0.85rem 1.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline-strong);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: color var(--dur-fast) ease, border-color var(--dur-fast) ease,
    transform var(--dur-fast) var(--ease-out);
  cursor: pointer;
}
.btn svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--gradient-brand);
  transform: translateY(101%);
  transition: transform var(--dur-med) var(--ease-out);
}
.btn:hover::before {
  transform: translateY(0);
}
.btn:hover {
  color: var(--void);
  border-color: transparent;
}
.btn-primary {
  background: var(--gradient-brand);
  color: var(--void);
  border-color: transparent;
  font-weight: 600;
}
.btn-primary::before {
  background: #ffffff;
}
.btn-line {
  color: var(--text-primary);
}

/* =================== CARDS & TAGS =================== */
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: clamp(1.4rem, 3vw, 2rem);
  transition: transform var(--dur-med) var(--ease-out),
    border-color var(--dur-med) ease;
}
.card:hover {
  border-color: var(--hairline-strong);
  transform: translateY(-4px);
}
.card.spotlight::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    420px circle at var(--mx, 50%) var(--my, 50%),
    rgba(0, 240, 255, 0.07),
    transparent 45%
  );
  opacity: 0;
  transition: opacity var(--dur-med) ease;
  pointer-events: none;
}
.card.spotlight:hover::after {
  opacity: 1;
}
.card.brackets::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 10px;
  width: 14px;
  height: 14px;
  border-top: 1px solid var(--accent);
  border-left: 1px solid var(--accent);
  opacity: 0;
  transition: opacity var(--dur-med) ease;
  pointer-events: none;
}
.card.brackets:hover::before {
  opacity: 1;
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.28rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--hairline-strong);
  color: var(--text-secondary);
  white-space: nowrap;
}
.tag.cyan { color: var(--accent); border-color: rgba(0,240,255,.4); background: var(--accent-dim); }
.tag.blue { color: var(--blue); border-color: rgba(0,168,255,.4); background: rgba(0,168,255,.08); }
.tag.green { color: var(--green); border-color: rgba(0,255,136,.4); background: rgba(0,255,136,.07); }
.tag.yellow { color: var(--yellow); border-color: rgba(255,225,77,.4); background: rgba(255,225,77,.06); }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.32rem 0.75rem;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}
.status-pill.completed {
  color: var(--teal);
  background: rgba(0, 217, 165, 0.09);
  border: 1px solid rgba(0, 217, 165, 0.35);
}
.status-pill.ongoing {
  color: var(--green);
  background: rgba(0, 255, 136, 0.08);
  border: 1px solid rgba(0, 255, 136, 0.35);
}
.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 1.6s ease infinite;
}
@keyframes pulse {
  50% {
    opacity: 0.25;
  }
}

.icon-badge {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--accent-dim);
  margin-bottom: var(--space-sm);
}
.icon-badge svg {
  width: 24px;
  height: 24px;
  fill: var(--accent);
}

/* =================== TERMINAL =================== */
.terminal {
  background: #0a0a0c;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55);
}
.terminal-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--hairline);
}
.terminal-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.terminal-dot:nth-child(1) { background: #ff5f57; }
.terminal-dot:nth-child(2) { background: #febc2e; }
.terminal-dot:nth-child(3) { background: #28c840; }
.terminal-content {
  padding: 1.25rem 1.35rem;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.9;
}
.terminal-line .prompt { color: var(--accent); }
.terminal-line .command { color: var(--text-primary); }
.terminal-line .output { color: var(--text-secondary); white-space: pre-wrap; }
.terminal-line .ok { color: var(--green); }

/* =================== MODALS & LIGHTBOX =================== */
.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 2.5rem);
  background: rgba(5, 5, 5, 0.82);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-med) var(--ease-out),
    visibility 0s linear var(--dur-med);
}
.modal.is-open {
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}
.modal-panel {
  width: min(860px, 100%);
  max-height: min(84vh, 900px);
  overflow-y: auto;
  background: var(--ink);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2.75rem);
  transform: translateY(28px) scale(0.98);
  transition: transform var(--dur-med) var(--ease-out);
}
.modal.is-open .modal-panel {
  transform: translateY(0) scale(1);
}
.modal-close {
  float: right;
  width: 40px;
  height: 40px;
  margin-left: var(--space-sm);
  display: grid;
  place-items: center;
  font-size: 1.7rem;
  line-height: 1;
  color: var(--text-muted);
  border-radius: 50%;
  transition: color var(--dur-fast), background var(--dur-fast);
}
.modal-close:hover {
  color: var(--text-primary);
  background: var(--surface-2);
}

.modal-kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}
.modal-title {
  font-size: var(--text-lg);
  margin-bottom: 0.4rem;
}
.modal-subtitle {
  color: var(--text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-sm);
}
.modal-section {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--hairline);
}
.modal-section h3 {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 0.7rem;
}
.modal-section p {
  color: var(--text-secondary);
}
.modal-section p + p {
  margin-top: 0.75rem;
}
ul.detail-list li {
  position: relative;
  padding-left: 1.3rem;
  color: var(--text-secondary);
  margin-bottom: 0.45rem;
}
ul.detail-list li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: var(--space-xs);
}
.gallery-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--hairline);
  cursor: zoom-in;
  transition: transform var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast);
}
.gallery-grid img:hover {
  transform: scale(1.03);
  border-color: var(--accent);
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-lightbox);
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.92);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-med) ease, visibility 0s linear var(--dur-med);
}
.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}
.lightbox img {
  max-width: min(1100px, 92vw);
  max-height: 88vh;
  border-radius: var(--radius-md);
}
.lightbox-close {
  position: absolute;
  top: 1.2rem;
  right: 1.6rem;
  font-size: 2.2rem;
  color: var(--text-secondary);
}
.lightbox-close:hover {
  color: var(--text-primary);
}

/* =================== MARQUEE TICKER =================== */
.ticker {
  overflow: hidden;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 0.95rem 0;
  user-select: none;
}
.ticker-track {
  display: flex;
  gap: 3.5rem;
  width: max-content;
  will-change: transform;
}
.ticker-track span {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}
.ticker-track span b {
  color: var(--accent);
  font-weight: 400;
}

/* =================== FOOTER =================== */
.site-footer {
  border-top: 1px solid var(--hairline);
  padding: var(--space-xl) 0 var(--space-md);
  background: var(--ink);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--hairline);
}
@media (max-width: 760px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}
.footer-brand img {
  height: 44px;
  margin-bottom: var(--space-sm);
}
/* First mark in the footer brand lockup is the black/transparent Null Point
   PNG — invert to white. The KSIT mark stays untouched. */
.footer-brand div:first-of-type img:first-of-type {
  filter: invert(1) brightness(1.1);
}
.footer-brand .foot-note {
  color: var(--text-muted);
  font-size: var(--text-sm);
  max-width: 36ch;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}
.footer-col ul li {
  margin-bottom: 0.55rem;
}
.footer-col ul a {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  transition: color var(--dur-fast);
}
.footer-col ul a:hover {
  color: var(--accent);
}
.footer-base {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
  padding-top: var(--space-md);
  color: var(--text-muted);
  font-size: var(--text-xs);
}
.footer-base .mono {
  color: var(--text-secondary);
}