/* ============================================================================
   HIKA — "Aurora"
   A dark-first, terminal-flavoured theme laid on Bootstrap 5.3 primitives.

   Nothing here rebuilds a Bootstrap component. Colours, radii and shadows are
   published as --bs-* tokens, so the built-ins pick up the brand on their own.
   The bespoke classes exist only where Bootstrap has no primitive:
     · colour helpers (.text-*, .bg-*, .border-*)
     · the accent buttons (.btn-primary is re-skinned, because Bootstrap bakes
       its variant colours at build time and they do not follow --bs-primary)
     · the pieces this site names by hand — the terminal window, the aurora
       gradient, meters, the timeline, social chips and the reveal animation.
   Dark is the default. `[data-theme="light"]` lifts the whole palette.
   ========================================================================== */

/* ---------------------------------------------------------------------------
   1. Fonts. Plus Jakarta Sans for the body, Fraunces for the hero name, and a
   monospace stack for the terminal details. All but the system monospace ship
   as local files, so nothing is fetched from a third party.
   --------------------------------------------------------------------------- */
@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url('../webfonts/plus-jakarta-sans-latin.woff2') format('woff2');
}
@font-face {
  font-family: 'Fraunces';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../webfonts/fraunces-latin.woff2') format('woff2');
}

/* ---------------------------------------------------------------------------
   2. Tokens — dark by default.
   --------------------------------------------------------------------------- */
:root {
  color-scheme: dark;

  --bs-font-sans-serif: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --bs-font-monospace: ui-monospace, 'SFMono-Regular', 'JetBrains Mono', Menlo, Consolas, 'Liberation Mono', monospace;
  --bs-body-font-family: var(--bs-font-sans-serif);
  --bs-body-font-size: 1rem;
  --bs-body-line-height: 1.7;

  /* Surfaces */
  --bs-body-bg: #070c11;
  --bs-body-bg-rgb: 7, 12, 17;
  --bs-body-color: #cddbe4;
  --bs-body-color-rgb: 205, 219, 228;
  --bs-heading-color: #eef7fb;
  /* The markup also carries data-bs-theme="dark" so Bootstrap's own dark
     tokens are live before the JS runs. Pin emphasis here anyway: tables, nav
     links, footer links and list-group hover all read it, and a black value
     would vanish against these surfaces. */
  --bs-emphasis-color: #eef7fb;
  --bs-emphasis-color-rgb: 238, 247, 251;
  --bs-secondary-color: #8399a8;
  --bs-secondary-bg: #0d161d;
  --bs-tertiary-bg: #121d26;
  --bs-border-color: rgba(140, 180, 205, 0.16);
  --bs-border-color-translucent: rgba(140, 180, 205, 0.09);
  --surface: #0e1820;
  --surface-2: #13212b;

  /* Brand — aurora mint */
  --bs-primary: #2ee6a8;
  --bs-primary-rgb: 46, 230, 168;
  --bs-primary-text-emphasis: #74f4cb;
  --bs-primary-bg-subtle: rgba(46, 230, 168, 0.12);
  --bs-primary-border-subtle: rgba(46, 230, 168, 0.32);
  --on-primary: #04150e;

  /* Second accent — sky, used only in gradients */
  --sky: #4bb8ff;
  --sky-rgb: 75, 184, 255;

  /* Warm accent */
  --bs-warning: #f4b860;
  --bs-warning-rgb: 244, 184, 96;
  --bs-warning-text-emphasis: #f7cd8f;
  --bs-warning-bg-subtle: rgba(244, 184, 96, 0.14);
  --bs-warning-border-subtle: rgba(244, 184, 96, 0.32);

  --bs-danger: #ff6b6b;
  --bs-danger-rgb: 255, 107, 107;
  --bs-success: #2ee6a8;
  --bs-success-rgb: 46, 230, 168;
  --bs-info: #4bb8ff;
  --bs-info-rgb: 75, 184, 255;
  --bs-dark: #05090d;
  --bs-dark-rgb: 5, 9, 13;

  /* Links */
  --bs-link-color-rgb: var(--bs-primary-rgb);
  --bs-link-hover-color-rgb: 116, 244, 203;
  --bs-link-decoration: none;

  /* Shape */
  --bs-border-radius: 0.75rem;
  --bs-border-radius-sm: 0.45rem;
  --bs-border-radius-lg: 1rem;
  --bs-border-radius-xl: 1.35rem;
  --bs-border-radius-xxl: 1.75rem;

  /* Depth */
  --bs-box-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 22px -12px rgba(0, 0, 0, 0.7);
  --bs-box-shadow: 0 2px 6px rgba(0, 0, 0, 0.45), 0 20px 45px -20px rgba(0, 0, 0, 0.8);
  --bs-box-shadow-lg: 0 6px 14px rgba(0, 0, 0, 0.5), 0 36px 70px -30px rgba(0, 0, 0, 0.85);

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --snap: 0.18s var(--ease);
  --focus: 0 0 0 0.22rem rgba(46, 230, 168, 0.28);
}

[data-theme="light"] {
  color-scheme: light;

  --bs-body-bg: #f6f9fb;
  --bs-body-bg-rgb: 246, 249, 251;
  --bs-body-color: #1b2b34;
  --bs-body-color-rgb: 27, 43, 52;
  --bs-heading-color: #0b1a22;
  --bs-emphasis-color: #000;
  --bs-emphasis-color-rgb: 0, 0, 0;
  --bs-secondary-color: #5d7885;
  --bs-secondary-bg: #eef3f6;
  --bs-tertiary-bg: #e6eef2;
  --bs-border-color: rgba(11, 26, 34, 0.13);
  --bs-border-color-translucent: rgba(11, 26, 34, 0.07);
  --surface: #ffffff;
  --surface-2: #f1f6f8;

  --bs-primary: #0f9e73;
  --bs-primary-rgb: 15, 158, 115;
  --bs-primary-text-emphasis: #0b7a58;
  --bs-primary-bg-subtle: #d8f4ea;
  --bs-primary-border-subtle: #a4e6d1;
  --on-primary: #ffffff;

  --sky: #1586d6;
  --sky-rgb: 21, 134, 214;

  --bs-warning-text-emphasis: #8a5a12;
  --bs-warning-bg-subtle: #fdefd5;
  --bs-warning-border-subtle: #f6d79c;

  --bs-link-color-rgb: 15, 158, 115;
  --bs-link-hover-color-rgb: 11, 122, 88;

  --bs-box-shadow-sm: 0 1px 2px rgba(11, 26, 34, 0.06), 0 8px 20px -12px rgba(11, 26, 34, 0.18);
  --bs-box-shadow: 0 2px 6px rgba(11, 26, 34, 0.08), 0 20px 42px -22px rgba(11, 26, 34, 0.28);
  --bs-box-shadow-lg: 0 6px 14px rgba(11, 26, 34, 0.1), 0 34px 64px -30px rgba(11, 26, 34, 0.34);

  --focus: 0 0 0 0.22rem rgba(15, 158, 115, 0.25);
}

/* ---------------------------------------------------------------------------
   3. Base & typography.
   --------------------------------------------------------------------------- */
body {
  min-height: 100vh;
  background-color: var(--bs-body-bg);
  background-image:
    radial-gradient(1100px 560px at 82% -8%, rgba(var(--bs-primary-rgb), 0.10), transparent 60%),
    radial-gradient(900px 520px at 0% -4%, rgba(var(--sky-rgb), 0.08), transparent 55%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6,
.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--bs-heading-color);
}

.lead { color: var(--bs-secondary-color); }
hr { opacity: 0.12; }
::selection { background: rgba(var(--bs-primary-rgb), 0.28); }
.text-body-secondary { color: var(--bs-secondary-color) !important; }

/* The hero name keeps a serif face against all the monospace around it — the
   one piece of editorial warmth in an otherwise technical page. */
.hero-name {
  font-family: 'Fraunces', Georgia, 'Times New Roman', serif;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.02;
}

.eyebrow {
  font-family: var(--bs-font-monospace);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bs-primary);
}

.mono { font-family: var(--bs-font-monospace); }

.aurora {
  background-image: linear-gradient(100deg, var(--bs-primary), var(--sky) 72%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------------------------------------------------------------------------
   4. Links.
   --------------------------------------------------------------------------- */
a {
  text-decoration: none;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 0.08em;
  transition: color var(--snap);
}
a:not(.btn):not(.nav-link):not(.navbar-brand):not(.dropdown-item):not(.page-link):not(.list-group-item):not(.social):hover {
  text-decoration: underline;
  text-decoration-color: rgba(var(--bs-link-color-rgb), 0.5);
}

/* ---------------------------------------------------------------------------
   5. Buttons. Bootstrap bakes each variant's colours, so .btn-primary is
   re-skinned by hand; every other button follows the tokens on its own.
   --------------------------------------------------------------------------- */
.btn {
  --bs-btn-font-weight: 600;
  --bs-btn-border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  transition: transform var(--snap), box-shadow var(--snap), color var(--snap),
              background-color var(--snap), border-color var(--snap);
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { box-shadow: var(--focus); }

.btn-primary {
  --bs-btn-color: var(--on-primary);
  --bs-btn-bg: var(--bs-primary);
  --bs-btn-border-color: var(--bs-primary);
  --bs-btn-hover-color: var(--on-primary);
  --bs-btn-hover-bg: #26cf98;
  --bs-btn-hover-border-color: #26cf98;
  --bs-btn-active-color: var(--on-primary);
  --bs-btn-active-bg: #21bd8a;
  --bs-btn-active-border-color: #21bd8a;
  --bs-btn-disabled-color: var(--on-primary);
  --bs-btn-disabled-bg: var(--bs-primary);
  --bs-btn-disabled-border-color: var(--bs-primary);
  --bs-btn-focus-shadow-rgb: var(--bs-primary-rgb);
}
.btn-primary:hover { box-shadow: 0 12px 30px -12px rgba(var(--bs-primary-rgb), 0.7); }

/* A quiet button that borrows the page surface rather than a colour. */
.btn-ghost {
  --bs-btn-color: var(--bs-body-color);
  --bs-btn-bg: transparent;
  --bs-btn-border-color: var(--bs-border-color);
  --bs-btn-hover-color: var(--bs-primary);
  --bs-btn-hover-bg: var(--surface-2);
  --bs-btn-hover-border-color: rgba(var(--bs-primary-rgb), 0.6);
  --bs-btn-active-color: var(--bs-primary);
  --bs-btn-active-bg: var(--surface-2);
  --bs-btn-active-border-color: rgba(var(--bs-primary-rgb), 0.6);
  --bs-btn-focus-shadow-rgb: var(--bs-primary-rgb);
}

.btn.rounded-circle {
  --bs-btn-padding-x: 0;
  --bs-btn-padding-y: 0;
  width: 2.5rem;
  height: 2.5rem;
}
.btn-sm.rounded-circle { width: 2rem; height: 2rem; }

/* Fields take the same pill shape as the buttons; a textarea is a paragraph
   box, not a line, so it stays rounded without going fully pill. */
.form-control,
.form-select {
  border-radius: 999px;
  min-width: 0;
}
textarea.form-control { border-radius: 0.7rem; }
/* The colour swatch is not a line either — a pill would make it an oval. */
.form-control-color { border-radius: 0.55rem; }

/* ---------------------------------------------------------------------------
   6. Cards & surfaces.
   --------------------------------------------------------------------------- */
.card {
  --bs-card-border-width: 1px;
  --bs-card-border-color: var(--bs-border-color);
  --bs-card-bg: var(--surface);
  --bs-card-cap-bg: transparent;
  --bs-card-title-color: var(--bs-heading-color);
  box-shadow: var(--bs-box-shadow-sm);
  transition: transform var(--snap), box-shadow var(--snap), border-color var(--snap);
}

.tile {
  background: var(--surface);
  border: 1px solid var(--bs-border-color);
  border-radius: var(--bs-border-radius-lg);
}

/* A table lives on a card, so its cells must stay transparent. Bootstrap
   paints each cell with --bs-table-bg (the page colour), which would lay a
   square block over the card's rounded corners. */
.table {
  --bs-table-bg: transparent;
}

/* The piece of work on the projects page. */
.work {
  overflow: hidden;
  height: 100%;
}
@media (hover: hover) {
  .work:hover {
    transform: translateY(-5px);
    box-shadow: var(--bs-box-shadow);
    border-color: rgba(var(--bs-primary-rgb), 0.5);
  }
}
.work-icon {
  width: 3rem;
  height: 3rem;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--bs-border-radius);
  font-size: 1.35rem;
  color: var(--bs-primary);
  background: rgba(var(--bs-primary-rgb), 0.12);
  border: 1px solid rgba(var(--bs-primary-rgb), 0.2);
}

/* ---------------------------------------------------------------------------
   7. Masthead.
   --------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(var(--bs-body-bg-rgb), 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--bs-border-color);
}
.site-header .navbar { --bs-navbar-padding-y: 0.6rem; }
.site-header .nav-link { font-weight: 500; }
.site-header .nav-link.active { color: var(--bs-primary) !important; }

.brand-mark {
  width: 2.6rem;
  height: 2.6rem;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.85rem;
  font-family: var(--bs-font-monospace);
  font-weight: 700;
  color: var(--on-primary);
  background-image: linear-gradient(135deg, var(--bs-primary), var(--sky));
  box-shadow: 0 8px 22px -10px rgba(var(--bs-primary-rgb), 0.8);
}
.brand-name { font-weight: 700; letter-spacing: -0.01em; color: var(--bs-heading-color); line-height: 1.05; }
.brand-tagline { font-family: var(--bs-font-monospace); font-size: 0.66rem; letter-spacing: 0.12em; color: var(--bs-secondary-color); }
.navbar-brand:hover .brand-name { color: var(--bs-primary); }

.theme-toggle .fa-sun { display: none; }
[data-theme="light"] .theme-toggle .fa-sun { display: inline-flex; }
[data-theme="light"] .theme-toggle .fa-moon { display: none; }

/* Bootstrap has no min-width reset; flex children still need to shrink. */
.min-width-0 { min-width: 0; }

/* ---------------------------------------------------------------------------
   8. The terminal window — the hero's centrepiece.
   --------------------------------------------------------------------------- */
.terminal {
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--bs-border-color);
  border-radius: var(--bs-border-radius-lg);
  box-shadow: var(--bs-box-shadow), 0 0 90px -34px rgba(var(--bs-primary-rgb), 0.55);
  overflow: hidden;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--bs-border-color);
  background: rgba(var(--bs-body-bg-rgb), 0.4);
}
.terminal-dot { width: 0.72rem; height: 0.72rem; border-radius: 50%; }
.terminal-dot.red { background: #ff5f57; }
.terminal-dot.amber { background: #febc2e; }
.terminal-dot.green { background: #28c840; }
.terminal-title { margin-inline: auto; font-family: var(--bs-font-monospace); font-size: 0.78rem; color: var(--bs-secondary-color); }
.terminal-body {
  padding: 1.35rem 1.5rem;
  font-family: var(--bs-font-monospace);
  font-size: 0.95rem;
  line-height: 1.9;
  overflow-wrap: anywhere;
}
.terminal-body .prompt { color: var(--bs-primary); }
.terminal-body .path { color: var(--sky); }
.terminal-body .arg { color: var(--bs-warning); }
.terminal-body .out { color: var(--bs-secondary-color); white-space: pre-wrap; }
.caret {
  display: inline-block;
  width: 0.6em;
  height: 1.05em;
  margin-left: 0.15em;
  vertical-align: -0.16em;
  background: var(--bs-primary);
  animation: blink 1.05s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------------------------------------------------------------------------
   9. Meters — a skill level drawn as a bar.
   --------------------------------------------------------------------------- */
.meter {
  height: 0.5rem;
  border-radius: 999px;
  background: rgba(var(--bs-body-color-rgb), 0.12);
  overflow: hidden;
}
.meter > span {
  display: block;
  height: 100%;
  border-radius: 999px;
  background-image: linear-gradient(90deg, var(--bs-primary), var(--sky));
}
.skill-icon { width: 1.8rem; text-align: center; color: var(--bs-primary); font-size: 1.15rem; }

/* Plain chips for interests and hands-on skills. */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--bs-border-color);
  background: var(--surface);
  font-weight: 500;
  transition: border-color var(--snap), color var(--snap), transform var(--snap);
}
.chip:hover { color: var(--bs-primary); border-color: rgba(var(--bs-primary-rgb), 0.55); transform: translateY(-2px); }
.chip i { color: var(--bs-primary); }

/* ---------------------------------------------------------------------------
   10. Timeline.
   --------------------------------------------------------------------------- */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: '';
  position: absolute;
  left: 0.4rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background-image: linear-gradient(180deg, var(--bs-primary), rgba(var(--bs-primary-rgb), 0));
}
.timeline-item { position: relative; padding-bottom: 2rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.72rem;
  top: 0.4rem;
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 50%;
  background: var(--bs-primary);
  box-shadow: 0 0 0 4px rgba(var(--bs-primary-rgb), 0.18);
}
.timeline-period {
  font-family: var(--bs-font-monospace);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--bs-primary);
}

/* ---------------------------------------------------------------------------
   11. Social chips & contact.
   --------------------------------------------------------------------------- */
.social {
  width: 2.9rem;
  height: 2.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.9rem;
  border: 1px solid var(--bs-border-color);
  background: var(--surface);
  color: var(--bs-body-color);
  font-size: 1.15rem;
  transition: transform var(--snap), color var(--snap), border-color var(--snap), box-shadow var(--snap);
}
.social:hover {
  transform: translateY(-4px);
  color: var(--brand, var(--bs-primary));
  border-color: currentColor;
  box-shadow: 0 14px 30px -14px currentColor;
}
.contact-line {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.9rem 1rem;
  border-radius: var(--bs-border-radius);
  border: 1px solid var(--bs-border-color);
  background: var(--surface);
  transition: border-color var(--snap), transform var(--snap);
}
/* The label copy may hold long unbroken addresses; let it shrink and wrap
   instead of pushing the line wider than the viewport on small screens. */
.contact-line > span:last-child {
  min-width: 0;
  overflow-wrap: anywhere;
}
.contact-line:hover { border-color: rgba(var(--bs-primary-rgb), 0.5); transform: translateX(3px); }
.contact-line .contact-icon {
  width: 2.75rem;
  height: 2.75rem;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.8rem;
  background: rgba(var(--bs-primary-rgb), 0.12);
  color: var(--bs-primary);
}

/* ---------------------------------------------------------------------------
   12. Footer & back-to-top.
   --------------------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--bs-border-color); background: var(--surface); }
#top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 1040;
  box-shadow: var(--bs-box-shadow);
}
#top[hidden] { display: none; }

/* ---------------------------------------------------------------------------
   13. Motion. Elements marked .reveal rise into place once, when scrolled to.
   --------------------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

a:focus-visible, .btn:focus-visible, .social:focus-visible, .chip:focus-visible {
  outline: 2px solid var(--bs-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ---------------------------------------------------------------------------
   14. Admin shell — the dark offcanvas sidebar, built on Bootstrap offcanvas.
   --------------------------------------------------------------------------- */
.admin-shell { min-height: 100vh; align-items: stretch; }
.admin-shell #sidebar { --bs-offcanvas-width: 270px; }
.admin-side { background: var(--surface); border-right: 1px solid var(--bs-border-color); }
.admin-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.85rem;
  border-radius: var(--bs-border-radius-sm);
  color: var(--bs-body-color);
  font-weight: 500;
}
.admin-link i { width: 1.25rem; text-align: center; color: var(--bs-secondary-color); }
.admin-link:hover { background: var(--surface-2); color: var(--bs-primary); }
.admin-link:hover i { color: var(--bs-primary); }
.admin-link.active { background: rgba(var(--bs-primary-rgb), 0.14); color: var(--bs-primary); }
.admin-link.active i { color: var(--bs-primary); }
@media (min-width: 992px) {
  .admin-shell #sidebar {
    width: 270px;
    flex: 0 0 270px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    visibility: visible !important;
    transform: none !important;
  }
}

/* A small log-in card and the code snippets the admin shows for addresses. */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; }
code {
  font-family: var(--bs-font-monospace);
  color: var(--bs-primary);
  background: rgba(var(--bs-primary-rgb), 0.1);
  padding: 0.15em 0.4em;
  border-radius: var(--bs-border-radius-sm);
}