/*
  Nido Wardana — GitHub Pages stylesheet (muted & professional)
  ------------------------------------------------------------
*/

/* 1) CSS Reset / Base ----------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, "Helvetica Neue", Arial, "Noto Sans", sans-serif; line-height: 1.6; }
img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

/* 2) Design Tokens -------------------------------------------------------- */
:root {
  color-scheme: light dark;
  --transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

:root[data-theme="light"] {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --text: #1f2937;      /* slate-800 */
  --muted: #6b7280;     /* gray-500 */
  --border: #e5e7eb;    /* gray-200 */
  --accent: #3a6ea5;    /* muted indigo-blue */
  --accent-contrast: #ffffff;
  --link: #1e40af;      /* deep link blue */
  --link-hover: #16347f;
  --chip: #eef2f7;
  --focus: #94a3b8;     /* subtle focus ring */
  --shadow: 0 8px 24px rgba(0,0,0,.08);
  --radius: 14px;

  --fs-1: clamp(2rem, 1.6rem + 1vw, 2.6rem);
  --fs-2: clamp(1.25rem, 1.1rem + .5vw, 1.6rem);
  --fs-3: 1.125rem;
  --fs-4: 0.95rem;

  --space-1: 6px;  --space-2: 10px; --space-3: 16px; --space-4: 24px; --space-5: 36px; --space-6: 56px;
  --container: 1000px;
}

:root[data-theme="dark"] {
  --bg: #0f172a;        /* slate-900 */
  --surface: #0b1220;   /* near-navy */
  --text: #e5e7eb;      /* gray-200 */
  --muted: #a1a1aa;     /* zinc-400 */
  --border: #1f2842;
  --accent: #6b87ac;    /* softened blue */
  --accent-contrast: #0b1220;
  --link: #93b1df;
  --link-hover: #b7c7e6;
  --chip: #111b2e;
  --focus: #7c93b6;
  --shadow: 0 12px 28px rgba(0,0,0,.45);
  --radius: 14px;

  --fs-1: clamp(2rem, 1.6rem + 1vw, 2.6rem);
  --fs-2: clamp(1.25rem, 1.1rem + .5vw, 1.6rem);
  --fs-3: 1.125rem;
  --fs-4: 0.95rem;

  --space-1: 6px;  --space-2: 10px; --space-3: 16px; --space-4: 24px; --space-5: 36px; --space-6: 56px;
  --container: 1000px;
}

/* 3) Page basics ---------------------------------------------------------- */
body { background: var(--bg); color: var(--text); }
.wrapper { max-width: var(--container); margin: 0 auto; padding: 0 var(--space-3); }

p { margin: 0 0 var(--space-3); font-size: var(--fs-3); color: var(--text); }
small { color: var(--muted); }

h1, h2 { margin: 0 0 var(--space-2); line-height: 1.2; }
h1 { font-weight: 800; font-size: var(--fs-1); letter-spacing: -0.02em; }
h2 { font-weight: 700; font-size: var(--fs-2); color: var(--text); }

/* Keep light, accessible accents for headings where desired */
.respro { color: var(--accent); }

/* 4) Links ---------------------------------------------------------------- */
a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }
a:active { color: var(--link-hover); }

/* 5) Navigation ----------------------------------------------------------- */
.navbar { position: sticky; top: 0; left: 0; z-index: 10; margin: 0; padding: var(--space-2) var(--space-3); background: color-mix(in oklab, var(--surface), transparent 0%); backdrop-filter: saturate(140%) blur(6px); border-bottom: 1px solid var(--border); list-style: none; }

/* If you use <li> items inside .navbar */
.navli { display: inline-block; margin-right: var(--space-3); padding: var(--space-2) 0; }
.navli a { padding: 8px 10px; border-radius: 10px; }
.navli a:hover { background: var(--chip); text-decoration: none; }

/* 6) Layout blocks -------------------------------------------------------- */
/* Avoid styling all divs globally (was causing heavy backgrounds). */
.section { padding: var(--space-5) 0; }
.surface { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }

.container { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: stretch; margin: var(--space-3) 0; }
.item { flex: 1 1 260px; padding: var(--space-3); }

/* Card pattern */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-3); box-shadow: var(--shadow); }
.card h3 { margin: 0 0 var(--space-2); font-size: 1.05rem; }
.card p { color: var(--muted); }

/* Two-column profile layout */
.profile { flex: 1 1 260px; text-align: center; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-4); box-shadow: var(--shadow); }
.summaryme { flex: 2 1 480px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-4); box-shadow: var(--shadow); }

/* Images ----------------------------------------------------------------- */
.profpic { border-radius: 999px; height: 180px; width: 180px; object-fit: cover; margin: 0 auto var(--space-3); border: 3px solid color-mix(in oklab, var(--border), transparent 40%); }
figure { margin: 0; display: grid; place-items: center; }

/* Utilities --------------------------------------------------------------- */
.muted { color: var(--muted); }

/* Projects (details/summary) ---------------------------------------------- */
.proj {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 2px);
  padding: var(--space-3) var(--space-4);
  margin: var(--space-2) 0;  /* reduced spacing */
  box-shadow: var(--shadow);
  box-shadow: var(--shadow);
}
.proj > summary.respro {
  cursor: pointer;
  font-weight: 650;
  font-size: 1.1rem;
  color: var(--accent);
  list-style: none;
}
.proj > summary.respro::-webkit-details-marker { display: none; }
.proj > summary.respro::before {
  content: "▸";
  display: inline-block;
  margin-right: 10px;
  transform: translateY(-1px);
  transition: transform .2s ease;
  color: var(--muted);
}
.proj[open] > summary.respro::before { transform: rotate(90deg) translateY(-1px); }
.proj p {
  margin-top: var(--space-2);
  font-size: var(--fs-4);
  color: var(--muted);
}
.proj p b { color: var(--text); font-weight: 600; }

.center { text-align: center; }
.stack > * + * { margin-top: var(--space-3); }
.grid { display: grid; gap: var(--space-3); }
@media (min-width: 700px) { .grid.cols-2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; } }
.center { text-align: center; }
.stack > * + * { margin-top: var(--space-3); }
.grid { display: grid; gap: var(--space-3); }
@media (min-width: 700px) { .grid.cols-2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; } }

/* Buttons ---------------------------------------------------------------- */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; border-radius: 12px; border: 1px solid var(--border); background: var(--surface); color: var(--text); text-decoration: none; box-shadow: var(--shadow); transition: transform .06s ease; }
.btn:hover { background: var(--chip); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); color: var(--accent-contrast); border-color: transparent; }
.btn.primary:hover { filter: brightness(0.98); }

/* Theme toggle button ----------------------------------------------------- */
#theme-toggle { position: fixed; bottom: 20px; right: 20px; background: var(--surface); color: var(--text); border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 999px; padding: 10px 16px; cursor: pointer; z-index: 100; transition: var(--transition); }
#theme-toggle:hover { background: var(--chip); }

/* Footer ----------------------------------------------------------------- */
footer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  padding: var(--space-3) 0;
  margin-top: var(--space-5);
  border-top: 1px solid var(--border);
  background: transparent;
}

/* Accessibility & Motion preferences ------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* Example helpers to space page sections ---------------------------- */
.header-bar { background: var(--surface); border-bottom: 1px solid var(--border); }
.hero { padding: var(--space-6) 0 var(--space-4); }

/* Social icons ---------------------------- */
.social-icons {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 6px;
  align-items: center;
}

.social-icons img {
  width: 22px;
  height: 22px;
  opacity: 0.75;
  transition: opacity 0.2s ease;
  filter: invert(40%) sepia(5%) saturate(300%) hue-rotate(180deg) brightness(90%);
}

[data-theme="dark"] .social-icons img {
  filter: invert(85%) brightness(140%);
}

.social-icons img:hover {
  opacity: 1;
}