/* =========================================================================
   SIDDHANT NAGRAJ, PORTFOLIO
   Dark editorial system · Archivo / Space Mono / Pixelify Sans
   Accents: electric blue + signal yellow
   ========================================================================= */

:root {
  /* ----- surfaces ----- */
  --bg:        #0b0b0c;
  --bg-2:      #111113;
  --surface:   #161618;
  --surface-2: #1d1d20;
  --line:      rgba(255,255,255,0.10);
  --line-2:    rgba(255,255,255,0.18);

  /* ----- ink ----- */
  --ink:       #f2f1ec;   /* warm white */
  --ink-2:     #b9b8b2;
  --ink-3:     #75746f;
  --ink-4:     #4a4a47;

  /* ----- accents (overridable via tweaks) ----- */
  --blue:      #2b6fff;
  --yellow:    #f7c14a;
  --yellow-ink: var(--yellow);   /* yellow for TEXT / thin strokes; darkens in light mode */
  --accent:    var(--blue);
  --available: #1f8a5b;   /* available-for-work status, fixed green, independent of accent */

  /* ----- type ----- */
  --display: 'Archivo', system-ui, sans-serif;
  --mono:    'Space Mono', ui-monospace, monospace;
  /* 'pixel' tokens retired, now point at the grotesk so all legacy usages render as Archivo */
  --pixel:   'Archivo', system-ui, sans-serif;
  --pixel-blk: 'Archivo', system-ui, sans-serif;

  /* ----- layout ----- */
  --pad: clamp(20px, 4.5vw, 80px);
  --maxw: 1680px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  /* themeable bits */
  --slot-stripe: rgba(255,255,255,0.035);
  --scrim: 11,11,12;
}

/* ---------- LIGHT THEME ---------- */
/* Neutral tokens for both dark & light now live per-scheme in schemes.css.
   Only mode-specific contrast fixes remain here. */
html[data-theme="light"] body { color: var(--ink); }
/* yellow reads as a deep amber on light surfaces (fills keep the bright --yellow) */
html[data-theme="light"] { --yellow-ink: #b8770a; }
/* light-mode contrast fixes */
html[data-theme="light"] .hero__pix--out { -webkit-text-stroke-color: var(--accent); text-stroke-color: var(--accent); }
html[data-theme="light"] ::selection { background: var(--accent); color: #fff; }
html[data-theme="light"] .workrow__peek { box-shadow: 0 24px 60px rgba(20,18,14,0.22); }
html[data-theme="light"] ::-webkit-scrollbar-track { background: var(--bg); }
html[data-theme="light"] ::-webkit-scrollbar-thumb { background: #cfccc2; }
html[data-theme="light"] ::-webkit-scrollbar-thumb:hover { background: #bbb8ad; }

* { margin: 0; padding: 0; box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  background-color: var(--bg);
  color: var(--ink);
  font-family: var(--display);
  font-weight: 500;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: var(--yellow); color: #000; }

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img { display: block; max-width: 100%; }

/* custom scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #2a2a2d; border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: #3a3a3d; }

/* =========================================================================
   TYPE PRIMITIVES
   ========================================================================= */

/* =========================================================================
   CUSTOM CURSOR (data-cursor: off | invert | label)
   ========================================================================= */
html[data-cursor="invert"] .curx, html[data-cursor="label"] .curx {
  position: fixed; top: 0; left: 0; z-index: 9999; pointer-events: none;
  margin: -9px 0 0 -9px; transition: opacity .25s var(--ease);
}
.curx { display: none; }
html[data-cursor="invert"].curx-on, html[data-cursor="label"].curx-on { cursor: none; }
html[data-cursor="invert"].curx-on a, html[data-cursor="invert"].curx-on button,
html[data-cursor="label"].curx-on a, html[data-cursor="label"].curx-on button,
html[data-cursor="invert"].curx-on .workrow, html[data-cursor="label"].curx-on .workrow { cursor: none; }

.curx__dot { display: block; width: 32px; height: 32px; border-radius: 50%; margin: -7px 0 0 -7px; }
.curx__label { display: none; }

/* -- invert variant -- */
html[data-cursor="invert"] .curx { display: block; }
html[data-cursor="invert"] .curx__dot {
  background: #fff; mix-blend-mode: difference;
  transition: width .25s var(--ease), height .25s var(--ease), margin .25s var(--ease);
}
html[data-cursor="invert"].curx-hot .curx__dot { width: 60px; height: 60px; margin: -21px 0 0 -21px; }
html[data-cursor="invert"].curx-down .curx__dot { width: 24px; height: 24px; margin: -3px 0 0 -3px; }

/* -- label variant -- */
html[data-cursor="label"] .curx { display: block; }
html[data-cursor="label"] .curx__dot {
  background: var(--ink); width: 14px; height: 14px; margin: -5px 0 0 -5px; transition: transform .2s var(--ease), opacity .2s var(--ease);
}
html[data-cursor="label"].curx-hot .curx__dot { transform: scale(1.7); }
html[data-cursor="label"].curx-row .curx__dot { opacity: 0; }
html[data-cursor="label"] .curx__label {
  position: absolute; top: -2px; left: -2px; transform: translateY(8px) scale(.9);
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
  background: var(--ink); color: var(--bg); font-family: var(--mono); font-size: 11px;
  letter-spacing: .06em; text-transform: uppercase; padding: 8px 14px; border-radius: 999px;
  opacity: 0; transition: opacity .22s var(--ease), transform .22s var(--ease);
  box-shadow: 0 10px 30px rgba(0,0,0,.4);
}
html[data-cursor="label"] .curx__label em { font-style: normal; }
html[data-cursor="label"].curx-row .curx__label { opacity: 1; transform: translateY(8px) scale(1); }

@media (hover: none) { .curx { display: none !important; } html[data-cursor] { cursor: auto; } }

/* =========================================================================
   CASE STUDY SCROLL PROGRESS BAR
   ========================================================================= */
.caseprog { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 98; background: transparent; pointer-events: none; }
.caseprog__fill { height: 100%; width: 0; background: var(--accent); transform-origin: left; transition: width .1s linear; }
@media print { .caseprog, .curx { display: none !important; } }

.mono {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.mono--ink { color: var(--ink-2); }
.mono--accent { color: var(--accent); }
.mono--yellow { color: var(--yellow-ink); }

.pixel {
  font-family: var(--pixel);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

/* huge editorial display */
.display {
  font-family: var(--display);
  font-weight: 800;
  line-height: 0.86;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  text-wrap: balance;
}

.expanded { font-stretch: 125%; }
.condensed { font-stretch: 75%; }

/* =========================================================================
   LAYOUT HELPERS
   ========================================================================= */

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding-inline: var(--pad); }
.row { display: flex; }
.col { display: flex; flex-direction: column; }

.hr { height: 1px; background: var(--line); border: 0; width: 100%; }

.section-label {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-block: 18px 0;
}
.section-label .idx { font-family: var(--mono); font-size: 11px; color: var(--accent); letter-spacing: 0.1em; }

/* striped image placeholder */
.slot {
  position: relative;
  width: 100%;
  background-color: var(--surface);
  background-image: repeating-linear-gradient(
    -45deg,
    var(--slot-stripe) 0 1px,
    transparent 1px 11px
  );
  border: 1px solid var(--line);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
}
.slot--filled { background-image: none; }
.slot__img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 50% 30%;
}
.slot__tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 10px 12px;
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(2px);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.slot__corner {
  position: absolute; top: 10px; right: 12px;
  font-family: var(--mono); font-size: 10px; color: var(--ink-4);
  letter-spacing: 0.1em;
}

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 13px 20px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  color: var(--ink);
  transition: background .35s var(--ease), color .35s var(--ease), border-color .35s var(--ease), transform .3s var(--ease);
  will-change: transform;
}
.btn:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.btn--solid { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--solid:hover { background: #fff; color: #000; border-color: #fff; }
.btn--yellow { background: var(--yellow); border-color: var(--yellow); color: #000; }
.btn--yellow:hover { background: #fff; border-color: #fff; }
.btn .arr { transition: transform .35s var(--ease); }
.btn:hover .arr { transform: translateX(3px); }

/* reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { scroll-behavior: auto !important; }
}

/* =========================================================================
   TOP NAV
   ========================================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px var(--pad);
  mix-blend-mode: difference;
  color: #fff;
}
.nav__brand { display: flex; align-items: center; gap: 10px; font-family: var(--pixel); font-weight: 700; font-size: 19px; letter-spacing: 0.02em; }
.nav__brand .reg { font-family: var(--mono); font-size: 11px; vertical-align: super; }
.nav__links { display: flex; gap: 28px; align-items: center; }
.nav__link { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; position: relative; padding: 4px 0; }
.nav__link::after { content:''; position:absolute; left:0; bottom:0; height:1px; width:0; background: currentColor; transition: width .35s var(--ease); }
.nav__link:hover::after { width: 100%; }
.nav__link.is-active::after { width: 100%; }
@media (max-width: 760px) {
  .nav { padding: 12px 16px; }
  /* declutter: text links are reachable by scrolling, keep just brand + theme toggle */
  .nav__links .nav__link { display: none; }
  .nav__links { gap: 0; }
  .nav__theme { padding: 6px 12px 6px 10px; font-size: 11px; gap: 6px; }
}

/* nav scrim (non blend) variant used on case study */
.nav--solid { mix-blend-mode: normal; color: var(--ink); background: linear-gradient(180deg, rgba(var(--scrim),0.9), rgba(var(--scrim),0)); backdrop-filter: blur(6px); }

/* theme toggle */
.nav__theme {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 6px 13px 6px 11px;
  border: 1px solid currentColor; border-radius: 999px;
  opacity: 0.85; transition: opacity .3s var(--ease);
}
.nav__theme:hover { opacity: 1; }
.nav__themedot { width: 9px; height: 9px; border-radius: 50%; background: var(--yellow); box-shadow: 0 0 0 1px currentColor inset; }

/* =========================================================================
   FOOTER / CONTACT
   ========================================================================= */
.contact { padding: clamp(60px,9vw,140px) 0 0; border-top: 1px solid var(--line); }
.contact__big { font-family: var(--display); font-weight: 800; text-transform: uppercase; line-height: 0.9; letter-spacing: -0.02em; font-size: clamp(48px, 12vw, 200px); }
.foot {
  display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: flex-end;
  padding: 48px 0 32px;
}
.foot__links { display: flex; flex-direction: column; gap: 4px; }
.foot__row { display: flex; gap: 28px; flex-wrap: wrap; }

/* =========================================================================
   APP FADE
   ========================================================================= */
.view-enter { animation: viewfade .5s var(--ease) both; }
@keyframes viewfade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }