CodeChef-PESUECC-Chapter/src/app/globals.css at main · ghzhost/CodeChef-PESUECC-Chapter · GitHub

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@import "tailwindcss";

/*
 * Enable class-based dark mode: the `dark:` variant matches when a `.dark`
 * class is present on <html> (toggled by the Navbar theme switch), instead of
 * Tailwind v4's default `prefers-color-scheme` media query.
 */
@custom-variant dark (&:where(.dark, .dark *));

/*
 * CodeChef PESUECC Chapter — brand system.
 * Palette and typography per DESIGN.md. Static color tokens live in `@theme`
 * so they emit `--color-*` custom properties AND generate utilities
 * (bg-cream, text-chocolate, border-hairline, ...). Font tokens use
 * `@theme inline` because they reference the next/font variables set on <html>.
 */
@theme {
  --color-cream: #f5f1eb;
  /* primary background canvas */
  --color-brown: #5b4638;
  /* primary structural elements */
  --color-chocolate: #3e2f24;
  /* headers & deep accents */
  --color-bronze: #a67c52;
  /* interactive CTAs / buttons */
  --color-charcoal: #1f1f1f;
  /* body typography */
  --color-panel: #ffffff;
  /* card backgrounds */
  --color-hairline: #e2e8f0;
  /* soft borders */
}

@theme inline {
  --font-display: var(--font-space-grotesk);
  --font-sans: var(--font-inter);
  --font-mono: var(--font-jetbrains-mono);
}

/*
 * Site canvas + backdrop swap by theme. Because every brand utility resolves to
 * `var(--color-*)`, redefining those variables under `.dark` re-themes the whole
 * site at once. `--color-cream` intentionally stays light in both themes: it is
 * the "ink on dark surfaces" role (text-cream in the footer / CTA), while the
 * page canvas is driven separately by `--site-canvas`.
 */
:root {
  --site-canvas: var(--color-cream);
  --site-backdrop: url("/lightmode.png");
  --l-shape-fill: #FBF6ED;
  --grid-line: color-mix(in oklab, var(--color-chocolate) 8%, transparent);

  /* Code editor / console surface — light IDE in light mode. */
  --ide-bar: #efe9e0;
  --ide-border: #e3dacd;
  --ide-body: #ffffff;
  --ide-ink-strong: #3e2f24;
  --ide-ink: #6f5f4e;
  --ide-ink-dim: #9c8b77;
  --ide-code: #3e2f24;
}

.dark {
  --color-brown: #b58a5f;
  /* lighter warm taupe for text/borders on dark */
  --color-chocolate: #f7f0e6;
  /* headings become the lightest ink */
  --color-bronze: #bd8a4a;
  /* brighter copper accent, matches darkmode.png */
  --color-charcoal: #e8dfd2;
  /* body typography, light on dark */
  --color-panel: #221a12;
  /* elevated card surface */
  --color-hairline: #3a2c20;
  /* borders & hairline dividers */
  --site-canvas: #16110c;
  /* deep warm near-black page canvas */
  --site-backdrop: url("/darkmode.png");
  --l-shape-fill: #1C1714;
  --grid-line: color-mix(in oklab, var(--color-cream) 5%, transparent);

  /* Code editor / console surface — warm terminal-dark in dark mode. */
  --ide-bar: #1e1610;
  --ide-border: #3a2c20;
  --ide-body: #16110c;
  --ide-ink-strong: #f0e9dd;
  --ide-ink: rgba(240, 233, 221, 0.62);
  --ide-ink-dim: rgba(240, 233, 221, 0.4);
  --ide-code: #cbb89a;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--site-canvas);
  background-image: var(--site-backdrop);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--color-charcoal);
}

/* Lenis smooth scroll */
html.lenis,
html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}

.lenis.lenis-stopped {
  overflow: hidden;
}

/* Accessible focus rings for interactive elements */
a:focus-visible,
button:focus-visible,
[role="button"]:focus-visible {
  outline: 2px solid var(--color-bronze);
  outline-offset: 2px;
  border-radius: 6px;
}

/* Honour reduced-motion for native scrolling */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

/*
 * Arena — problem statement prose. Rendered from challenge markdown by
 * ProblemStatement. Colours use brand tokens so the copy re-themes in dark mode;
 * fenced code blocks stay a warm terminal-dark in both themes.
 */
.arena-prose {
  color: color-mix(in oklab, var(--color-charcoal) 90%, transparent);
  font-size: 0.95rem;
}

.arena-prose> :first-child {
  margin-top: 0;
}

.arena-prose h2 {
  font-family: var(--font-display), sans-serif;
  font-weight: 700;
  color: var(--color-chocolate);
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  margin: 1.75rem 0 0.6rem;
}

.arena-prose h3 {
  font-family: var(--font-display), sans-serif;
  font-weight: 600;
  color: var(--color-chocolate);
  font-size: 0.95rem;
  margin: 1.25rem 0 0.5rem;
}

.arena-prose p {
  line-height: 1.7;
  margin: 0.75rem 0;
}

.arena-prose strong {
  color: var(--color-chocolate);
  font-weight: 600;
}

.arena-prose a {
  color: var(--color-bronze);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.arena-prose ul,
.arena-prose ol {
  margin: 0.75rem 0;
  padding-left: 1.35rem;
}

.arena-prose ul {
  list-style: disc;
}

.arena-prose ol {
  list-style: decimal;
}

.arena-prose li {
  margin: 0.35rem 0;
  line-height: 1.6;
}

.arena-prose li::marker {
  color: var(--color-bronze);
}

.arena-prose :not(pre)>code {
  font-family: var(--font-mono), monospace;
  font-size: 0.85em;
  color: var(--color-brown);
  background: color-mix(in oklab, var(--color-bronze) 14%, transparent);
  border: 1px solid color-mix(in oklab, var(--color-bronze) 22%, transparent);
  padding: 0.1em 0.4em;
  border-radius: 6px;
}

.arena-prose .arena-io-label {
  margin-top: 0.75rem;
  font-family: var(--font-mono), monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-brown);
}

.arena-prose .arena-io-label+pre {
  margin-top: 0.3rem;
}

.arena-prose pre {
  margin: 1rem 0;
  padding: 0.9rem 1.1rem;
  border-radius: 12px;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.6;
  /* Theme the code/sample block with the IDE tokens: a light warm surface with
   * dark text in light mode, a warm terminal-dark with light text in dark mode.
   * Sample I/O blocks are bare <pre> (no <code>), so the colour lives here. */
  font-family: var(--font-mono), monospace;
  background: var(--ide-bar);
  border: 1px solid var(--ide-border);
  color: var(--ide-code);
}

.arena-prose pre code {
  font-family: var(--font-mono), monospace;
  color: inherit;
  background: none;
  border: none;
  padding: 0;
}

/* Screenshot deterrent: don't render the problem when printing / print-to-PDF. */
@media print {
  .arena-no-print {
    display: none !important;
  }
}

.arena-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}

.arena-prose th,
.arena-prose td {
  border: 1px solid var(--color-hairline);
  padding: 0.5rem 0.75rem;
  text-align: left;
}

.arena-prose th {
  color: var(--color-chocolate);
  font-weight: 600;
  background: color-mix(in oklab, var(--color-bronze) 8%, transparent);
}

/* Mecha component classes live in the components layer so Tailwind utilities
 * (text-2xl, hidden, flex, …) applied alongside them still win. */
@layer components {

  /*
 * --- Mecha / HUD panels ---
 * Chamfered "tech panel" cards with a double outline. The notched shape is a
 * clip-path octagon; the double line is four nested clip layers whose alternating
 * fill/line backgrounds paint an outer line, a gap, and an inner line. Each layer
 * shrinks its own chamfer (`--mecha-n`) by how far it is inset, so the diagonals
 * stay concentric. Colours are vars so the whole thing themes in light/dark.
 */
  .mecha-wrapper {
    position: relative;
    filter: drop-shadow(0 5px 14px rgb(0 0 0 / 0.1));
    transition: filter 500ms ease;
  }

  .dark .mecha-wrapper {
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.5));
  }

  .mecha-wrapper:hover, .group:hover .mecha-wrapper {
    filter: drop-shadow(0 12px 32px rgba(40,28,16,0.2));
  }

  .dark .mecha-wrapper:hover, .dark .group:hover .mecha-wrapper {
    filter: drop-shadow(0 12px 32px rgba(0,0,0,0.6));
  }

  .mecha {
    --mecha-n: 14px;
    /* chamfer size */
    --mecha-fill: var(--color-panel);
    --mecha-line: color-mix(in oklab, var(--color-chocolate) 60%, var(--color-bronze));
    --mecha-clip: polygon(var(--mecha-n) 0,
        calc(100% - var(--mecha-n)) 0,
        100% var(--mecha-n),
        100% calc(100% - var(--mecha-n)),
        calc(100% - var(--mecha-n)) 100%,
        var(--mecha-n) 100%,
        0 calc(100% - var(--mecha-n)),
        0 var(--mecha-n));
    position: relative;
    clip-path: var(--mecha-clip);
    background: var(--mecha-line);
    /* outer line */
    padding: 1.5px;
    width: 100%;
    height: 100%;
  }

  .initiative-btn {
    @apply inline-flex items-center justify-center gap-3 border-[1.5px] border-[#221E1A] dark:border-[#D98A53] bg-transparent px-8 py-3.5 font-mono text-[11px] font-bold tracking-[0.15em] text-[#221E1A] dark:text-[#D98A53] uppercase transition-all duration-300 hover:bg-[#221E1A] dark:hover:bg-[#D98A53] hover:text-[#FBF6ED] dark:hover:text-[#1C1714];
  }

  .initiative-btn::after {
    content: "→";
    display: inline-block;
    transition: transform 300ms ease-out;
    margin-left: 4px;
  }

  .initiative-btn:hover::after {
    transform: translate(6px, -2px);
  }

  .mecha-btn-arrow {
    @apply inline-block transition-transform duration-300 ease-out;
    margin-left: 4px;
  }

  .group:hover .mecha-btn-arrow,
  .mecha-btn:hover .mecha-btn-arrow {
    transform: translate(6px, -2px);
  }

  .mecha__gap {
    --mecha-n: 12.5px;
    /* 14 - 1.5 inset */
    clip-path: var(--mecha-clip);
    background: var(--mecha-fill);
    /* gap */
    padding: 10px;
    width: 100%;
    height: 100%;
  }

  .mecha__inline {
    --mecha-n: 8.5px;
    /* 14 - 5.5 inset */
    clip-path: var(--mecha-clip);
    background: var(--mecha-line);
    /* inner line */
    padding: 1px;
    width: 100%;
    height: 100%;
  }

  .mecha__body {
    --mecha-n: 7.5px;
    /* 14 - 6.5 inset */
    clip-path: var(--mecha-clip);
    background: var(--mecha-fill);
    position: relative;
    width: 100%;
    height: 100%;
  }

  /* Dark-IDE variant: dark fill + warm bronze edge (used for the console). */
  .mecha--ide {
    --mecha-fill: var(--ide-body);
    --mecha-line: color-mix(in oklab, var(--color-bronze) 70%, var(--ide-border));
  }

  .mecha__telemetry {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    /* Clear the top frame line and the chamfered corners so the label/index
   * never collide with the border. */
    padding: 0.95rem 1.15rem ;
    font-family: var(--font-mono), monospace;
  }

  .mecha__label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.20em;
    color: color-mix(in oklab, var(--mecha-line) 88%, transparent);
    border: 1px solid color-mix(in oklab, var(--mecha-line) 40%, transparent);
    padding: 0.16rem 0.5rem;
    white-space: nowrap;
  }

  .mecha__index {
    font-size: 10px;
    letter-spacing: 0.12em;
    color: color-mix(in oklab, var(--mecha-line) 70%, transparent);
  }

  .mecha__tick {
    position: absolute;
    width: 7px;
    height: 7px;
    pointer-events: none;
    color: color-mix(in oklab, var(--mecha-line) 55%, transparent);
  }

  .mecha__tick--tl {
    top: 10px;
    left: 10px;
    border-top: 1.5px solid;
    border-left: 1.5px solid;
  }

  .mecha__tick--tr {
    top: 10px;
    right: 10px;
    border-top: 1.5px solid;
    border-right: 1.5px solid;
  }

  .mecha__tick--bl {
    bottom: 10px;
    left: 10px;
    border-bottom: 1.5px solid;
    border-left: 1.5px solid;
  }

  .mecha__tick--br {
    bottom: 10px;
    right: 10px;
    border-bottom: 1.5px solid;
    border-right: 1.5px solid;
  }

  /*
 * --- Mecha buttons ---
 * Rounded button controls. Single-element (no border layer) so the classes drop
 * onto a <button> or a <Link> alike. `solid` is the primary bronze CTA; `ghost`
 * is an outlined secondary.
 */
  .mecha-btn {
    @apply inline-flex items-center justify-center gap-2 rounded-lg font-semibold transition-all duration-200;
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
  }

  .mecha-btn--ghost {
    @apply border border-brown text-brown hover:bg-brown hover:text-white dark:hover:text-[#16110c];
  }

  .mecha-btn--solid {
    @apply bg-bronze text-white shadow-sm hover:bg-bronze/90 hover:shadow-md;
  }

  .mecha-btn--ok {
    background: #059669;
    color: #fff;
  }

  .mecha-btn--sm {
    --mb-n: 5px;
    font-size: 0.68rem;
    padding: 0.42rem 0.85rem;
    letter-spacing: 0.06em;
  }

  /*
 * --- Mecha chips ---
 * Small chamfered status/tag pills. Colour comes from utility classes
 * (bg-emerald-500/15 text-emerald-600, …); this only sets the shape + mono type.
 */
  .mecha-chip {
    --mc-n: 4px;
    clip-path: polygon(var(--mc-n) 0,
        calc(100% - var(--mc-n)) 0,
        100% var(--mc-n),
        100% calc(100% - var(--mc-n)),
        calc(100% - var(--mc-n)) 100%,
        var(--mc-n) 100%,
        0 calc(100% - var(--mc-n)),
        0 var(--mc-n));
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-family: var(--font-mono), monospace;
    font-size: 0.66rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.2rem 0.55rem;
    line-height: 1.1;
    white-space: nowrap;
  }

  /*
 * --- Mecha tabs (segmented control) ---
 */
  .mecha-tabs {
    --mt-n: 7px;
    display: inline-flex;
    gap: 3px;
    padding: 4px;
    background: var(--color-panel);
    clip-path: polygon(var(--mt-n) 0,
        calc(100% - var(--mt-n)) 0,
        100% var(--mt-n),
        100% calc(100% - var(--mt-n)),
        calc(100% - var(--mt-n)) 100%,
        var(--mt-n) 100%,
        0 calc(100% - var(--mt-n)),
        0 var(--mt-n));
    filter: drop-shadow(0 3px 8px rgb(0 0 0 / 0.08));
  }

  .mecha-tab {
    --mt-n: 5px;
    clip-path: polygon(var(--mt-n) 0,
        calc(100% - var(--mt-n)) 0,
        100% var(--mt-n),
        100% calc(100% - var(--mt-n)),
        calc(100% - var(--mt-n)) 100%,
        var(--mt-n) 100%,
        0 calc(100% - var(--mt-n)),
        0 var(--mt-n));
    font-family: var(--font-mono), monospace;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.42rem 0.95rem;
    color: color-mix(in oklab, var(--color-charcoal) 58%, transparent);
    transition:
      background-color 0.15s ease,
      color 0.15s ease;
  }

  .mecha-tab:hover {
    color: var(--color-chocolate);
  }

  .mecha-tab--active {
    background: color-mix(in oklab, var(--color-bronze) 18%, transparent);
    color: var(--color-chocolate);
  }

  /*
 * --- Mecha inputs ---
 * Filled, chamfered fields with a bronze left-accent bar that brightens on
 * focus. Single-element, so it drops onto any <input>/<textarea>/<select>.
 */
  .mecha-input {
    --mi-n: 6px;
    clip-path: polygon(var(--mi-n) 0,
        calc(100% - var(--mi-n)) 0,
        100% var(--mi-n),
        100% calc(100% - var(--mi-n)),
        calc(100% - var(--mi-n)) 100%,
        var(--mi-n) 100%,
        0 calc(100% - var(--mi-n)),
        0 var(--mi-n));
    width: 100%;
    background: color-mix(in oklab, var(--color-charcoal) 5%, var(--color-panel));
    border-left: 2px solid color-mix(in oklab, var(--color-bronze) 55%, transparent);
    padding: 0.6rem 0.85rem;
    font-size: 0.875rem;
    color: var(--color-charcoal);
    outline: none;
    transition:
      background-color 0.15s ease,
      border-color 0.15s ease;
  }

  .mecha-input::placeholder {
    color: color-mix(in oklab, var(--color-charcoal) 42%, transparent);
  }

  .mecha-input:focus {
    background: color-mix(in oklab, var(--color-bronze) 10%, var(--color-panel));
    border-left-color: var(--color-bronze);
  }

}

/*
 * --- Cockpit atmosphere ---
 * Bronze HUD scrollbars + a faint blueprint grid behind the page content.
 */
* {
  scrollbar-width: thin;
  scrollbar-color: color-mix(in oklab, var(--color-bronze) 45%, transparent) transparent;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: color-mix(in oklab, var(--color-bronze) 42%, transparent);
  background-clip: padding-box;
  border: 2px solid transparent;
}

::-webkit-scrollbar-thumb:hover {
  background: color-mix(in oklab, var(--color-bronze) 68%, transparent);
  background-clip: padding-box;
}

/* Faint technical grid over the page canvas (behind content, above the backdrop). */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(
      var(--grid-line) 1px,
      transparent 1px
    ),
    linear-gradient(
      90deg,
      var(--grid-line) 1px,
      transparent 1px
    );
  background-size: 46px 46px;
  background-position: center top;
  opacity: 1; /* Opacity is handled by the color-mix in var(--grid-line) */
}

/*
 * ==========================================
 * INITIATIVES — PREMIUM 4-LAYER CHAMFERED L-SHAPE
 * System: outer-line → gap → inner-accent → body
 * Inspired by the mecha panel architecture above.
 * ==========================================
 */

/* ---- Mobile: Chamfered octagon (no L-notch) ---- */
.hud-l-outer {
  --c: 24px;
}

.hud-l-gap {
  --c: 20.5px;
}

.hud-l-inline {
  --c: 16px;
}

.hud-l-body {
  --c: 15px;
}

.hud-l-outer,
.hud-l-gap,
.hud-l-inline,
.hud-l-body {
  clip-path: polygon(var(--c) 0, calc(100% - var(--c)) 0,
      100% var(--c), 100% calc(100% - var(--c)),
      calc(100% - var(--c)) 100%, var(--c) 100%,
      0 calc(100% - var(--c)), 0 var(--c));
}

/* ---- Desktop: True L-Shape polygon ---- */
@media (min-width: 1024px) {
  .hud-l-outer {
    --c: 32px;
    --w: 420px;
    --h: 480px;
  }

  .hud-l-gap {
    --c: 28.5px;
    --w: 416.5px;
    --h: 476.5px;
  }

  .hud-l-inline {
    --c: 24px;
    --w: 412px;
    --h: 472px;
  }

  .hud-l-body {
    --c: 23px;
    --w: 411px;
    --h: 471px;
  }

  .hud-l-outer,
  .hud-l-gap,
  .hud-l-inline,
  .hud-l-body {
    clip-path: polygon(var(--c) 0,
        calc(var(--w) - var(--c)) 0,
        var(--w) var(--c),
        var(--w) calc(var(--h) - var(--c)),
        calc(var(--w) + var(--c)) var(--h),
        calc(100% - var(--c)) var(--h),
        100% calc(var(--h) + var(--c)),
        100% calc(100% - var(--c)),
        calc(100% - var(--c)) 100%,
        var(--c) 100%,
        0 calc(100% - var(--c)),
        0 var(--c));
  }
}

/* ---- Corner tick marks (bracket accents at chamfer vertices) ---- */
.hud-tick {
  position: absolute;
  width: 8px;
  height: 8px;
  pointer-events: none;
  z-index: 5;
}

.hud-tick--tl {
  top: 40px;
  left: 12px;
  border-top: 1.5px solid;
  border-left: 1.5px solid;
}

.hud-tick--bl {
  bottom: 40px;
  left: 12px;
  border-bottom: 1.5px solid;
  border-left: 1.5px solid;
}

.hud-tick--br {
  bottom: 40px;
  right: 12px;
  border-bottom: 1.5px solid;
  border-right: 1.5px solid;
}

.hud-tick--tr {
  top: 40px;
  right: 12px;
  border-top: 1.5px solid;
  border-right: 1.5px solid;
}

/* ---- Step-corner accent (where the L turns) ---- */
@media (min-width: 1024px) {
  .hud-tick--step {
    position: absolute;
    top: 470px;
    /* just below the step height (480px) */
    left: 428px;
    /* just past the step width (420px) */
    width: 10px;
    height: 10px;
    border-top: 1.5px solid;
    border-left: 1.5px solid;
    pointer-events: none;
    z-index: 5;
  }
}

.chamfer-image {
  clip-path: polygon(24px 0, calc(100% - 24px) 0, 100% 24px, 100% calc(100% - 24px), calc(100% - 24px) 100%, 24px 100%, 0 calc(100% - 24px), 0 24px);
}

@layer utilities {
  .bg-tech-glow-main {
    background-image:
      radial-gradient(circle at 18% 18%, rgba(166,124,82,0.28), transparent 28%),
      radial-gradient(circle at 82% 45%, rgba(245,241,235,0.1), transparent 24%);
  }
  .bg-tech-glow-card {
    background-image: linear-gradient(110deg, rgba(166,124,82,0.18), transparent 34%);
  }

  .bg-tech-grid-event {
    background-image:
      linear-gradient(to right, color-mix(in oklab, var(--color-hairline) 58%, transparent) 1px, transparent 1px),
      linear-gradient(to bottom, color-mix(in oklab, var(--color-hairline) 58%, transparent) 1px, transparent 1px);
    background-size: 46px 46px;
    background-position: center top;
    background-attachment: fixed;
  }
}

/* ------------------------------------------------------------------ */
/*  Team member card entrance animation                                */
/* ------------------------------------------------------------------ */

@keyframes card-in {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-card-in {
  animation: card-in 0.5s cubic-bezier(0.22, 1, 0.36, 1) both;
}

/* ------------------------------------------------------------------ */
/*  View Transitions (Dark mode pan effect)                           */
/* ------------------------------------------------------------------ */
::view-transition-old(root),
::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}