/* =========================================================================
   Filip Frącz — filipfracz.net
   Single shared stylesheet. Edit content in the .html files, not here.
   Design: dark, mechanical-keyboard motif. Links are 3D keycaps.
   ========================================================================= */

:root {
  color-scheme: dark;  /* renders native controls (audio player, scrollbars) dark */
  --bg:        #121316;
  --bg-2:      #17181c;
  --panel:     #1d1f24;
  --panel-2:   #24262c;
  --ink:       #e9ebf0;
  --ink-dim:   #a4a9b4;
  --ink-faint: #6c7280;
  --line:      #2c2f36;

  /* keycap body */
  --cap-top:    #3a3d45;
  --cap-bottom: #2a2c32;
  --cap-side:   #121317;
  --cap-edge:   #4b4f59;

  /* accents (echo the colorful keycaps in the cover photo) */
  --a-linkedin: #4a9eff;
  --a-github:   #d7dbe3;
  --a-suno:     #ff7a3c;
  --a-projects: #34d3b4;
  --a-music:    #b98bff;
  --a-email:    #ffd24a;

  --radius: 14px;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

.nowrap { white-space: nowrap; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--a-linkedin); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

/* -------------------------------------------------------------------------
   Landing hero
   ------------------------------------------------------------------------- */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 20px;
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.hero::before {                 /* keyboard cover photo */
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: url("../images/cover.jpg") center/cover no-repeat;
  filter: saturate(1.05);
}

.hero::after {                  /* darkening + color wash for readability */
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(18,19,22,.35), rgba(18,19,22,.86) 70%, rgba(18,19,22,.96) 100%),
    linear-gradient(180deg, rgba(18,19,22,.55), rgba(18,19,22,.75));
}

.card {
  width: min(680px, 100%);
  text-align: center;
  background: rgba(23, 24, 28, .72);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 22px;
  padding: 42px 34px 36px;
  backdrop-filter: blur(10px) saturate(1.1);
  -webkit-backdrop-filter: blur(10px) saturate(1.1);
  box-shadow: 0 30px 80px rgba(0,0,0,.55);
}

.avatar {
  width: 158px;
  height: 158px;
  border-radius: 50%;
  margin: 0 auto 20px;
  object-fit: cover;
  border: 3px solid rgba(255,255,255,.12);
  box-shadow: 0 8px 26px rgba(0,0,0,.5), 0 0 0 6px rgba(185,139,255,.10);
  background: var(--panel-2);
  cursor: zoom-in;
  transition: transform .15s ease, box-shadow .2s ease;
}
.avatar:hover { transform: scale(1.04); }
.avatar:focus-visible { outline: 2px solid var(--a-music); outline-offset: 4px; }

/* Circular "spyglass" lightbox for the profile photo */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(8, 9, 11, .74);
  -webkit-backdrop-filter: blur(9px);
  backdrop-filter: blur(9px);
  cursor: zoom-out;
  opacity: 0;
  visibility: hidden;
  transition: opacity .22s ease, visibility .22s ease;
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox__img {
  width: min(512px, 82vmin);
  height: min(512px, 82vmin);
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid rgba(255, 255, 255, .16);
  box-shadow: 0 30px 90px rgba(0, 0, 0, .6), 0 0 0 8px rgba(185, 139, 255, .14);
  transform: scale(.92);
  transition: transform .22s ease;
}
.lightbox.open .lightbox__img { transform: scale(1); }

.name {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  letter-spacing: .5px;
  margin: 0;
}

.tagline {
  color: var(--ink-dim);
  margin: 8px auto 4px;
  max-width: 46ch;
}

.kbd-hint {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 6px;
}

/* -------------------------------------------------------------------------
   Keycap links
   ------------------------------------------------------------------------- */
.keys {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 30px;
}

.keycap {
  --accent: var(--a-github);
  flex: 1 1 170px;
  max-width: 200px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px 17px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--cap-top), var(--cap-bottom));
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transform: translateY(-3px);
  box-shadow:
    0 1px 0 var(--cap-edge) inset,
    0 -4px 8px rgba(0,0,0,.35) inset,
    0 5px 0 var(--cap-side),
    0 12px 16px rgba(0,0,0,.45);
  transition: transform .07s ease, box-shadow .07s ease, filter .2s ease;
  position: relative;
  overflow: hidden;
}

.keycap::before {               /* colored legend accent bar */
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--accent);
  box-shadow: 0 0 14px var(--accent);
}

.keycap:hover { filter: brightness(1.12); text-decoration: none; }

.keycap:active {                /* press the key down */
  transform: translateY(2px);
  box-shadow:
    0 1px 0 var(--cap-edge) inset,
    0 -2px 6px rgba(0,0,0,.35) inset,
    0 1px 0 var(--cap-side),
    0 3px 6px rgba(0,0,0,.5);
}

.keycap__icon {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  color: var(--accent);
  display: grid;
  place-items: center;
}
.keycap__icon svg { width: 22px; height: 22px; display: block; }

.keycap__label {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.15;
  text-align: left;
}
.keycap__label b {
  font-family: var(--mono);
  font-weight: 600;
  font-size: .98rem;
  letter-spacing: .2px;
}
.keycap__label span {
  font-size: .72rem;
  color: var(--ink-faint);
}

/* accent modifiers */
.keycap.k-linkedin { --accent: var(--a-linkedin); }
.keycap.k-github   { --accent: var(--a-github); }
.keycap.k-suno     { --accent: var(--a-suno); }
.keycap.k-projects { --accent: var(--a-projects); }
.keycap.k-music    { --accent: var(--a-music); }
.keycap.k-email    { --accent: var(--a-email); }

.hero-foot {
  margin-top: 26px;
  font-size: .82rem;
  color: var(--ink-faint);
}
.hero-foot a { color: var(--ink-dim); }

.copyright { display: block; margin-top: 6px; color: var(--ink-faint); }

/* -------------------------------------------------------------------------
   Subpage shell (projects, music)
   ------------------------------------------------------------------------- */
.page {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 22px 80px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 22px;
  margin-bottom: 8px;
  background: rgba(18,19,22,.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar .brand {
  display: inline-flex;
  align-items: center;
}
.topbar .brand:hover { text-decoration: none; }
.brand-mark {
  height: 32px;
  width: auto;
  display: block;
  transition: transform .15s ease;
}
.topbar .brand:hover .brand-mark { transform: scale(1.06); }
/* keep the dark-green mark crisp on the dark topbar */
[data-theme="dark"] .brand-mark { filter: drop-shadow(0 0 1.5px rgba(255, 255, 255, .55)); }
.topbar nav { display: flex; gap: 20px; font-family: var(--mono); font-size: .9rem; }
.topbar nav a { color: var(--ink-dim); }
.topbar nav a:hover { color: var(--ink); text-decoration: none; }
.topbar nav a.active { color: var(--ink); border-bottom: 2px solid var(--a-music); padding-bottom: 2px; }

.page-head { padding: 40px 0 8px; }
.page-head h1 {
  font-family: var(--mono);
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  margin: 0 0 8px;
  letter-spacing: .5px;
}
.page-head h1 .accent { color: var(--a-music); }
.page-head p { color: var(--ink-dim); margin: 0; max-width: 60ch; }

/* -------------------------------------------------------------------------
   Project cards
   ------------------------------------------------------------------------- */
.projects { display: grid; gap: 18px; margin-top: 28px; }

.project {
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 22px 20px;
  transition: border-color .2s ease, transform .2s ease;
}
.project:hover { border-color: #3a3f49; transform: translateY(-2px); }
.project h3 { margin: 0 0 6px; font-size: 1.2rem; }
.project h3 a { color: var(--ink); }
.project h3 a:hover { color: var(--a-projects); text-decoration: none; }
.project p { margin: 0 0 12px; color: var(--ink-dim); }
.project-tagline {
  font-family: var(--mono);
  font-size: .9rem;
  color: var(--a-projects) !important;
  margin: 0 0 10px !important;
}
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--ink-dim);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 3px 9px;
}
.project-links { margin-top: 14px; display: flex; gap: 18px; font-family: var(--mono); font-size: .85rem; }

/* -------------------------------------------------------------------------
   Music / song cards
   ------------------------------------------------------------------------- */
.songs { display: grid; gap: 22px; margin-top: 28px; }

.song {
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  scroll-margin-top: 84px;   /* clear the sticky topbar when deep-linked */
  transition: border-color .25s ease, box-shadow .25s ease;
}
.song--target {
  border-color: var(--a-music);
  box-shadow: 0 0 0 1px var(--a-music), 0 0 26px rgba(185, 139, 255, .18);
}

.song__permalink {
  font-family: var(--mono);
  color: var(--ink-faint);
  text-decoration: none;
  margin-left: 8px;
  opacity: 0;
  transition: opacity .15s ease, color .15s ease;
}
.song:hover .song__permalink,
.song__permalink:focus { opacity: 1; }
.song__permalink:hover { color: var(--a-music); }
.song__head {
  display: flex;
  gap: 18px;
  padding: 20px 22px;
  align-items: flex-start;
}
.song__cover {
  flex: 0 0 auto;
  width: 92px;
  height: 92px;
  border-radius: 12px;
  object-fit: cover;
  background: var(--panel-2);
  border: 1px solid var(--line);
}
.song__cover.placeholder {
  display: grid;
  place-items: center;
  color: var(--a-music);
}
.song__cover.placeholder svg { width: 40px; height: 40px; }
.song__meta { flex: 1 1 auto; min-width: 0; }
.song__title { margin: 0; font-size: 1.25rem; font-family: var(--mono); }
.song__date { font-size: .78rem; color: var(--ink-faint); font-family: var(--mono); }
.song__blurb { margin: 8px 0 0; color: var(--ink-dim); }
.song__credit { margin: 8px 0 0; font-family: var(--mono); font-size: .78rem; color: var(--ink-faint); }
.song__credit a { color: var(--a-suno); }

.song__audio { padding: 0 22px 18px; }
.song__audio audio { width: 100%; height: 40px; }

.song__lyrics { border-top: 1px solid var(--line); }
.song__lyrics summary {
  cursor: pointer;
  padding: 14px 22px;
  font-family: var(--mono);
  font-size: .85rem;
  color: var(--ink-dim);
  list-style: none;
  user-select: none;
}
.song__lyrics summary::-webkit-details-marker { display: none; }
.song__lyrics summary::before { content: "▸ "; color: var(--a-music); }
.song__lyrics[open] summary::before { content: "▾ "; }
.song__lyrics summary:hover { color: var(--ink); }
.song__lyrics pre {
  margin: 0;
  padding: 4px 22px 22px;
  font-family: var(--mono);
  font-size: .86rem;
  line-height: 1.7;
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
}
.song__ext { padding: 0 22px 18px; font-family: var(--mono); font-size: .82rem; }
.song__ext a { color: var(--a-suno); }
.song__ext a.dl { color: var(--a-projects); }
.song__ext .sep { color: var(--ink-faint); margin: 0 4px; }

.empty {
  text-align: center;
  color: var(--ink-faint);
  border: 1px dashed var(--line);
  border-radius: 14px;
  padding: 48px 22px;
  margin-top: 28px;
}

/* -------------------------------------------------------------------------
   Footer
   ------------------------------------------------------------------------- */
.foot {
  text-align: center;
  color: var(--ink-faint);
  font-size: .82rem;
  padding: 40px 22px 30px;
  font-family: var(--mono);
}
.foot a { color: var(--ink-dim); }

@media (max-width: 520px) {
  .card { padding: 32px 20px 28px; }
  .song__head { flex-direction: column; }
  .song__cover { width: 100%; height: 160px; }
  .topbar nav { gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* -------------------------------------------------------------------------
   Light theme
   Dark is the default (:root above). A tiny inline script sets
   <html data-theme="light|dark"> before paint (from saved choice or the OS
   preference), so there's no flash. The toggle button flips + persists it.
   ------------------------------------------------------------------------- */
:root[data-theme="light"] {
  color-scheme: light;
  --bg:        #eef0f3;
  --bg-2:      #e7e9ee;
  --panel:     #ffffff;
  --panel-2:   #f1f3f6;
  --ink:       #1b1d21;
  --ink-dim:   #4a505a;
  --ink-faint: #7c828d;
  --line:      #e0e3e9;

  /* light PBT-style keycaps */
  --cap-top:    #ffffff;
  --cap-bottom: #e9ebf0;
  --cap-side:   #c3c8d1;
  --cap-edge:   #ffffff;

  /* accents deepened a touch for contrast on light */
  --a-linkedin: #0a66c2;
  --a-github:   #24292f;
  --a-suno:     #e8590c;
  --a-projects: #0f9d8c;
  --a-music:    #7c4dff;
  --a-email:    #c99700;
}

/* Homepage keeps the keyboard photo; the card goes light. */
[data-theme="light"] .card {
  background: rgba(255, 255, 255, .84);
  border-color: rgba(0, 0, 0, .06);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .32);
}
[data-theme="light"] .avatar {
  border-color: rgba(0, 0, 0, .08);
  box-shadow: 0 8px 26px rgba(0, 0, 0, .22), 0 0 0 6px rgba(124, 77, 255, .12);
}
[data-theme="light"] .topbar { background: rgba(255, 255, 255, .85); }

/* -------------------------------------------------------------------------
   Theme toggle button
   ------------------------------------------------------------------------- */
.topbar-right { display: flex; align-items: center; gap: 18px; }

.theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink-dim);
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink-faint); }
.theme-toggle svg { width: 18px; height: 18px; display: block; }
.theme-toggle.fixed {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 30;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .35);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.theme-toggle .icon-moon { display: none; }        /* dark mode shows the sun */
[data-theme="light"] .theme-toggle .icon-sun  { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }  /* light shows the moon */