/* ============================================================================
   Swaccho Khan — components
   Cursor, navigation, buttons, glass surfaces, forms, footer.
   ========================================================================== */

/* --------------------------------------------------------- custom cursor -- */
.cursor,
.cursor__ring {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
  pointer-events: none;
  border-radius: 50%;
  opacity: 0;
  transition: opacity 300ms ease;
}

.cursor.is-active,
.cursor__ring.is-active {
  opacity: 1;
}

.cursor {
  width: 7px;
  height: 7px;
  margin: -3.5px 0 0 -3.5px;
  background: #fff;
  mix-blend-mode: difference;
  transition: opacity 300ms ease, width 250ms var(--ease-spring), height 250ms var(--ease-spring),
    margin 250ms var(--ease-spring);
}

.cursor__ring {
  width: 34px;
  height: 34px;
  margin: -17px 0 0 -17px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  backdrop-filter: invert(6%);
  transition: opacity 300ms ease, width 320ms var(--ease-spring), height 320ms var(--ease-spring),
    margin 320ms var(--ease-spring), border-color 320ms ease, background-color 320ms ease;
}

body.cursor-hover .cursor {
  width: 0;
  height: 0;
  margin: 0;
}

body.cursor-hover .cursor__ring {
  width: 62px;
  height: 62px;
  margin: -31px 0 0 -31px;
  border-color: rgba(124, 92, 255, 0.85);
  background: rgba(124, 92, 255, 0.13);
}

body.cursor-down .cursor__ring {
  width: 26px;
  height: 26px;
  margin: -13px 0 0 -13px;
}

/* Hide the OS cursor only where we've drawn our own, and only on real pointers. */
@media (hover: hover) and (pointer: fine) {
  body.has-custom-cursor,
  body.has-custom-cursor * {
    cursor: none !important;
  }
}

@media (hover: none), (pointer: coarse) {
  .cursor,
  .cursor__ring,
  #trail-canvas {
    display: none !important;
  }
}

/* ------------------------------------------------------------ navigation -- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background-color var(--dur) var(--ease-out), backdrop-filter var(--dur) var(--ease-out),
    border-color var(--dur) var(--ease-out), height var(--dur) var(--ease-out);
  border-bottom: 1px solid transparent;
}

.nav.is-stuck {
  height: 62px;
  background: rgba(6, 7, 14, 0.72);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-bottom-color: var(--glass-border);
}

.nav__inner {
  width: var(--shell-wide);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text-1);
  font-size: 1.02rem;
}

.brand__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: none;
  border-radius: 11px;
  background: var(--grad-primary);
  color: #06070e;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  overflow: hidden;
  transition: transform var(--dur) var(--ease-spring);
}

.brand__mark::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.65) 50%, transparent 70%);
  transform: translateX(-130%);
  transition: transform 750ms var(--ease-out);
}

.brand:hover .brand__mark {
  transform: rotate(-8deg) scale(1.06);
}

.brand:hover .brand__mark::after {
  transform: translateX(130%);
}

.brand__sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 2px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.3rem;
  border-radius: 99px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: relative;
}

.nav__link {
  position: relative;
  z-index: 1;
  padding: 0.52rem 1.05rem;
  border-radius: 99px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-3);
  transition: color var(--dur-fast) ease;
  white-space: nowrap;
}

.nav__link:hover {
  color: var(--text-1);
}

.nav__link.is-active {
  color: var(--text-1);
}

.nav__pill {
  position: absolute;
  z-index: 0;
  top: 0.3rem;
  bottom: 0.3rem;
  border-radius: 99px;
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  box-shadow: 0 6px 22px -8px rgba(124, 92, 255, 0.55);
  transition: transform 520ms var(--ease-spring), width 520ms var(--ease-spring), opacity 260ms ease;
  opacity: 0;
  pointer-events: none;
  left: 0;
}

.nav__pill.is-ready {
  opacity: 1;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.nav__toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  place-items: center;
}

.nav__toggle span {
  display: block;
  width: 17px;
  height: 1.5px;
  background: var(--text-1);
  border-radius: 2px;
  transition: transform 380ms var(--ease-out), opacity 220ms ease;
}

.nav__toggle span + span {
  margin-top: 4.5px;
}

body.menu-open .nav__toggle span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
body.menu-open .nav__toggle span:nth-child(2) {
  opacity: 0;
}
body.menu-open .nav__toggle span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Scroll progress bar sitting on the nav's bottom edge. */
.nav__progress {
  position: absolute;
  bottom: -1px;
  left: 0;
  height: 2px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: var(--grad-primary);
  box-shadow: 0 0 14px rgba(124, 92, 255, 0.7);
}

@media (max-width: 900px) {
  .nav__toggle {
    display: grid;
  }

  .nav__links {
    position: fixed;
    inset: var(--nav-h) 1rem auto 1rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
    padding: 0.75rem;
    border-radius: var(--radius-lg);
    background: rgba(9, 11, 20, 0.94);
    backdrop-filter: blur(26px);
    -webkit-backdrop-filter: blur(26px);
    box-shadow: var(--glass-shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-14px) scale(0.98);
    transition: opacity 320ms var(--ease-out), transform 320ms var(--ease-out), visibility 320ms;
  }

  body.menu-open .nav__links {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav__link {
    padding: 0.85rem 1rem;
    font-size: 0.98rem;
  }

  .nav__pill {
    display: none;
  }

  .nav__link.is-active {
    background: var(--glass-bg-strong);
    border-radius: 12px;
  }

  .nav__actions .btn {
    display: none;
  }
}

/* --------------------------------------------------------------- buttons -- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.86rem 1.55rem;
  border-radius: 99px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.012em;
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  isolation: isolate;
  transition: transform 260ms var(--ease-spring), box-shadow 320ms var(--ease-out),
    border-color 320ms var(--ease-out), color 260ms ease, background-color 260ms ease;
}

.btn svg {
  width: 1.05em;
  height: 1.05em;
  flex: none;
}

.btn:active {
  transform: scale(0.975);
}

.btn--primary {
  color: #05060c;
  background: var(--grad-primary);
  background-size: 180% auto;
  box-shadow: 0 12px 34px -12px rgba(124, 92, 255, 0.85);
  animation: shimmer 7s linear infinite;
}

.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(115deg, transparent 32%, rgba(255, 255, 255, 0.75) 50%, transparent 68%);
  transform: translateX(-120%);
  transition: transform 780ms var(--ease-out);
}

.btn--primary:hover {
  box-shadow: 0 18px 46px -12px rgba(124, 92, 255, 1);
}

.btn--primary:hover::before {
  transform: translateX(120%);
}

.btn--ghost {
  color: var(--text-1);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.btn--ghost:hover {
  border-color: var(--glass-border-lit);
  background: var(--glass-bg-strong);
  box-shadow: 0 14px 34px -18px rgba(0, 0, 0, 0.9);
}

.btn--sm {
  padding: 0.58rem 1.05rem;
  font-size: 0.79rem;
}

.btn--quiet {
  padding: 0.5rem 0.95rem;
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--text-3);
  background: rgba(255, 255, 255, 0.025);
  border: 1px dashed rgba(255, 255, 255, 0.14);
  border-radius: 99px;
}

.btn--quiet:hover {
  color: var(--text-1);
  border-color: rgba(255, 255, 255, 0.3);
  border-style: solid;
  background: var(--glass-bg);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

/* Arrow that slides on hover. */
.btn__arrow {
  transition: transform 320ms var(--ease-out);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

/* Text link with an animated underline. */
.link-underline {
  position: relative;
  color: var(--text-1);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}

.link-underline::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 1px;
  background: var(--grad-primary);
  transform: scaleX(0);
  transform-origin: 100% 50%;
  transition: transform 420ms var(--ease-out);
}

.link-underline:hover::after {
  transform: scaleX(1);
  transform-origin: 0 50%;
}

/* ---------------------------------------------------------------- glass --- */
.glass {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(var(--glass-blur)) saturate(155%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(155%);
  box-shadow: var(--glass-shadow);
  overflow: hidden;
}

/* The top light-catch that sells the "pane of glass" read. */
.glass::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.42) 22%,
    rgba(255, 255, 255, 0.42) 78%,
    transparent
  );
  pointer-events: none;
}

/* Pointer-tracked spotlight, driven by --mx/--my set in JS. */
.glass--lit::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: radial-gradient(
    340px circle at var(--mx, 50%) var(--my, 50%),
    rgba(124, 92, 255, 0.19),
    transparent 62%
  );
  opacity: 0;
  transition: opacity 420ms var(--ease-out);
  pointer-events: none;
}

.glass--lit:hover::after {
  opacity: 1;
}

.card {
  padding: clamp(1.5rem, 2.6vw, 2.15rem);
  transition: transform 520ms var(--ease-out), border-color 420ms var(--ease-out),
    box-shadow 520ms var(--ease-out);
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--glass-border-lit);
  box-shadow: 0 34px 74px -30px rgba(0, 0, 0, 0.95), 0 1px 0 0 rgba(255, 255, 255, 0.09) inset;
}

/* 3D tilt container — JS writes --rx/--ry. */
.tilt {
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateZ(0);
  transition: transform 420ms var(--ease-out);
}

.tilt.is-tilting {
  transition: transform 90ms linear;
}

.tilt__layer {
  transform: translateZ(38px);
}

/* --------------------------------------------------------------- chips --- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.42em;
  padding: 0.34rem 0.78rem;
  border-radius: 99px;
  font-family: var(--font-mono);
  font-size: 0.685rem;
  letter-spacing: 0.045em;
  color: var(--text-3);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--glass-border);
  transition: color 260ms ease, border-color 260ms ease, background-color 260ms ease,
    transform 260ms var(--ease-spring);
}

.chip:hover {
  color: var(--text-1);
  border-color: var(--glass-border-lit);
  transform: translateY(-2px);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.chip--dot::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex: none;
}

.status-dot {
  position: relative;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #34d399;
  flex: none;
}

.status-dot::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #34d399;
  animation: pulse-ring 2.2s var(--ease-out) infinite;
}

/* -------------------------------------------------------------- socials -- */
.social-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.social {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  color: var(--text-3);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow: hidden;
  transition: color 300ms ease, transform 380ms var(--ease-spring), border-color 300ms ease;
}

.social svg {
  width: 19px;
  height: 19px;
  position: relative;
  z-index: 1;
}

.social::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity 320ms ease;
}

.social:hover {
  color: #05060c;
  transform: translateY(-4px) scale(1.04);
  border-color: transparent;
}

.social:hover::after {
  opacity: 1;
}

.social--labelled {
  width: auto;
  padding: 0 1.05rem;
  gap: 0.55rem;
  grid-auto-flow: column;
  font-size: 0.83rem;
  font-weight: 500;
}

.social--labelled span {
  position: relative;
  z-index: 1;
}

/* ---------------------------------------------------------------- forms -- */
.field {
  position: relative;
  display: block;
}

.field + .field {
  margin-top: 1.15rem;
}

.field__label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.685rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 0.55rem;
}

.field__input,
.field__textarea {
  width: 100%;
  padding: 0.92rem 1.1rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.032);
  border: 1px solid var(--glass-border);
  color: var(--text-1);
  font-size: 0.95rem;
  line-height: 1.6;
  transition: border-color 280ms ease, background-color 280ms ease, box-shadow 280ms ease;
  -webkit-appearance: none;
  appearance: none;
}

.field__textarea {
  min-height: 168px;
  resize: vertical;
}

.field__input::placeholder,
.field__textarea::placeholder {
  color: var(--text-4);
}

.field__input:hover,
.field__textarea:hover {
  border-color: rgba(255, 255, 255, 0.18);
}

.field__input:focus,
.field__textarea:focus {
  outline: none;
  border-color: rgba(124, 92, 255, 0.72);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 0 4px rgba(124, 92, 255, 0.14);
}

.field.has-error .field__input,
.field.has-error .field__textarea {
  border-color: rgba(255, 94, 120, 0.66);
  box-shadow: 0 0 0 4px rgba(255, 94, 120, 0.12);
}

.field__error {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: #ff8fa3;
  min-height: 1.1em;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 260ms ease, transform 260ms var(--ease-out);
}

.field.has-error .field__error {
  opacity: 1;
  transform: none;
}

.field__counter {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-4);
  letter-spacing: 0.06em;
}

.field__counter.is-near {
  color: var(--amber);
}

/* Honeypot — off-screen, hidden from AT, never focusable by a human. */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}

.form-status {
  display: none;
  align-items: flex-start;
  gap: 0.8rem;
  margin-top: 1.35rem;
  padding: 1rem 1.15rem;
  border-radius: var(--radius);
  font-size: 0.88rem;
  line-height: 1.6;
  border: 1px solid transparent;
  animation: rise-in 460ms var(--ease-out);
}

.form-status.is-shown {
  display: flex;
}

.form-status--ok {
  color: #7ff0c0;
  background: rgba(52, 211, 153, 0.09);
  border-color: rgba(52, 211, 153, 0.35);
}

.form-status--error {
  color: #ffa8b6;
  background: rgba(255, 94, 120, 0.08);
  border-color: rgba(255, 94, 120, 0.32);
}

.form-status svg {
  width: 18px;
  height: 18px;
  flex: none;
  margin-top: 2px;
}

/* Submit button loading state */
.btn.is-loading {
  pointer-events: none;
  color: transparent;
}

.btn.is-loading::after {
  content: '';
  position: absolute;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  border: 2px solid rgba(5, 6, 12, 0.28);
  border-top-color: #05060c;
  animation: spin-slow 620ms linear infinite;
}

/* --------------------------------------------------------------- footer -- */
.footer {
  position: relative;
  margin-top: var(--section-y);
  padding-block: clamp(3rem, 6vw, 4.5rem) 2.25rem;
  border-top: 1px solid var(--glass-border);
  background: linear-gradient(180deg, transparent, rgba(124, 92, 255, 0.05));
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.footer__col h4 {
  font-family: var(--font-mono);
  font-size: 0.675rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 1.15rem;
}

.footer__links {
  display: grid;
  gap: 0.65rem;
}

.footer__links a {
  color: var(--text-2);
  font-size: 0.9rem;
  width: fit-content;
  transition: color 240ms ease, transform 300ms var(--ease-out);
}

.footer__links a:hover {
  color: var(--text-1);
  transform: translateX(4px);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding-top: 1.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.055);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--text-4);
}

.footer__wordmark {
  font-family: var(--font-sans);
  font-size: clamp(3.5rem, 13vw, 11rem);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 0.82;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.075);
  margin-top: clamp(2rem, 6vw, 4rem);
  user-select: none;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
}

@media (max-width: 820px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

/* ------------------------------------------------------------ page intro -- */
.page-head {
  padding-top: calc(var(--nav-h) + clamp(3.5rem, 9vh, 6.5rem));
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}

.page-head h1 {
  font-size: clamp(2.35rem, 1.5rem + 4vw, 4.5rem);
  margin-top: 1rem;
}

.page-head .lede {
  margin-top: 1.35rem;
}

/* ------------------------------------------------------------ preloader -- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 9998;
  display: grid;
  place-items: center;
  background: var(--ink-950);
  transition: opacity 620ms var(--ease-out), visibility 620ms;
}

.preloader.is-done {
  opacity: 0;
  visibility: hidden;
}

.preloader__bar {
  width: min(220px, 50vw);
  height: 2px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.preloader__bar i {
  display: block;
  height: 100%;
  width: 40%;
  border-radius: 2px;
  background: var(--grad-primary);
  animation: preload-sweep 1.05s var(--ease-in-out) infinite;
}

@keyframes preload-sweep {
  0% { transform: translateX(-110%); }
  100% { transform: translateX(320%); }
}

/* ------------------------------------------------------------- marquee --- */
.marquee {
  position: relative;
  overflow: hidden;
  padding-block: 1.15rem;
  border-block: 1px solid var(--glass-border);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
  display: flex;
  width: max-content;
  gap: 2.6rem;
  animation: marquee 42s linear infinite;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: 2.6rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  white-space: nowrap;
}

.marquee__item::after {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--violet);
  flex: none;
}