/* =========================================================================
   jfrahmadii.xyz — portfolio styles
   Clean, light, professional shell + a dark "dashboard" panel for data viz.
   ========================================================================= */

:root {
  --ink: #0e1726;        /* headings */
  --body: #36465c;       /* body text */
  --muted: #687587;      /* secondary text */
  --bg: #ffffff;
  --bg-soft: #f5f8fa;
  --bg-tint: #eef5f4;
  --line: #e3e8ee;
  --line-soft: #edf1f5;
  --accent: #0d9488;     /* teal — clean-energy cue */
  --accent-ink: #0a6f66;
  --accent-soft: #e2f3f0;
  --warm: #d9683f;       /* gas / "drifting" cue */
  --shadow-sm: 0 1px 2px rgba(13, 30, 50, .05), 0 1px 3px rgba(13, 30, 50, .04);
  --shadow-md: 0 6px 22px rgba(13, 30, 50, .08);
  --shadow-lg: 0 18px 50px rgba(13, 30, 50, .12);
  --radius: 14px;
  --maxw: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
          "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
  --mono: "SF Mono", ui-monospace, "Cascadia Code", "Consolas", "Roboto Mono", monospace;

  /* dark dashboard palette (scoped under .dashboard) */
  --d-bg: #0f1722; --d-panel: #16212e; --d-panel2: #1c2a3a; --d-ink: #e8eef5;
  --d-muted: #93a4b8; --d-line: #26384c;
  --nuc: #7c6cf0; --hyd: #2e86c1; --wnd: #27ae60; --sol: #f1c40f;
  --bio: #16a085; --gas: #8a97a6; --oth: #b0bccb; --d-accent: #33c2b3; --d-warn: #e67e51;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { color: var(--ink); line-height: 1.15; margin: 0; font-weight: 800; letter-spacing: -.02em; }
a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.wrap-narrow { max-width: 760px; margin: 0 auto; padding: 0 22px; }

.eyebrow {
  color: var(--accent-ink); font-weight: 700; letter-spacing: .14em;
  font-size: 12px; text-transform: uppercase; margin: 0 0 10px;
}

/* ---------- top nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line-soft);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--ink); letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.brand .dot {
  width: 26px; height: 26px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #16a085);
  display: grid; place-items: center; color: #fff; font-size: 13px; font-weight: 800;
}
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { color: var(--body); font-weight: 600; font-size: 14.5px; }
.nav-links a:hover { color: var(--accent-ink); text-decoration: none; }
@media (max-width: 620px) { .nav-links a.hide-sm { display: none; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 10px; font-weight: 650; font-size: 14.5px;
  border: 1px solid transparent; cursor: pointer; transition: .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--accent-ink); color: #fff; }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-ink); }

/* ---------- hero ---------- */
.hero { position: relative; padding: 86px 0 64px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 70% at 85% -10%, rgba(13, 148, 136, .12), transparent 60%),
    radial-gradient(50% 60% at 5% 0%, rgba(22, 160, 133, .08), transparent 55%);
}
.hero h1 { font-size: clamp(34px, 5vw, 52px); margin: 6px 0 0; }
.hero .lead { font-size: clamp(17px, 2.3vw, 21px); color: var(--body); max-width: 640px; margin: 18px 0 0; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero .avail {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 600;
  color: var(--accent-ink); background: var(--accent-soft); padding: 6px 12px; border-radius: 999px;
}
.hero .avail .pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(13,148,136,.5); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(13,148,136,.5); } 70% { box-shadow: 0 0 0 8px rgba(13,148,136,0); } 100% { box-shadow: 0 0 0 0 rgba(13,148,136,0); } }

/* ---------- section ---------- */
.section { padding: 64px 0; }
.section.soft { background: var(--bg-soft); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.section-head { margin-bottom: 30px; }
.section-head h2 { font-size: clamp(24px, 3.4vw, 32px); }
.section-head p { color: var(--muted); margin: 8px 0 0; max-width: 620px; }

/* ---------- project cards ---------- */
.projects { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 760px) { .projects { grid-template-columns: 1fr; } }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm); transition: .18s ease; display: flex; flex-direction: column;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: #d4dbe4; }
.card a.card-link { color: inherit; }
.card a.card-link:hover { text-decoration: none; }

.card .thumb { height: 168px; position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.card .thumb.energy { background: linear-gradient(135deg, #0f1722, #1c2a3a); }
.card .thumb .spark { position: absolute; inset: 0; }
.card .thumb .badge {
  position: absolute; left: 16px; top: 14px; font-size: 11.5px; font-weight: 700; letter-spacing: .05em;
  text-transform: uppercase; color: var(--d-accent); background: rgba(51,194,179,.12);
  border: 1px solid rgba(51,194,179,.3); padding: 4px 10px; border-radius: 999px;
}
.card .body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card h3 { font-size: 19px; }
.card .blurb { color: var(--body); font-size: 14.5px; margin: 0; }
.card .meta { margin-top: auto; display: flex; align-items: center; justify-content: space-between; padding-top: 6px; }
.card .arrow { color: var(--accent-ink); font-weight: 700; font-size: 14.5px; }

.card.placeholder { border-style: dashed; background: var(--bg-soft); box-shadow: none; align-items: center; justify-content: center; min-height: 320px; text-align: center; }
.card.placeholder:hover { transform: none; box-shadow: none; }
.card.placeholder .body { align-items: center; color: var(--muted); }

/* ---------- tags ---------- */
.tags { display: flex; flex-wrap: wrap; gap: 7px; }
.tag {
  font-size: 12px; font-weight: 600; color: var(--accent-ink);
  background: var(--accent-soft); border: 1px solid #cfe9e4; padding: 3px 10px; border-radius: 999px;
}
.tag.neutral { color: var(--muted); background: var(--bg-soft); border-color: var(--line); }

/* ---------- about / skills ---------- */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: start; }
@media (max-width: 760px) { .about-grid { grid-template-columns: 1fr; gap: 28px; } }
.about p { margin: 0 0 14px; }
.skills h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 12px; }
.skill-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.skill-list .tag { font-size: 12.5px; padding: 5px 12px; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 38px 0; color: var(--muted); font-size: 14px; }
.footer .wrap { display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; align-items: center; }
.footer a { color: var(--body); font-weight: 600; }
.footer .social { display: flex; gap: 18px; }

/* =========================================================================
   PROJECT PAGE
   ========================================================================= */
.proj-hero { padding: 40px 0 18px; }
.breadcrumb { font-size: 13.5px; color: var(--muted); margin-bottom: 18px; }
.breadcrumb a { color: var(--muted); font-weight: 600; }
.proj-hero h1 { font-size: clamp(28px, 4.4vw, 42px); margin: 10px 0 0; max-width: 16ch; }
.proj-hero .dek { font-size: clamp(16px, 2.2vw, 19px); color: var(--body); max-width: 680px; margin: 16px 0 0; }
.proj-meta { display: flex; flex-wrap: wrap; gap: 26px; margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--line); }
.proj-meta .item .k { font-size: 11.5px; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); }
.proj-meta .item .v { font-weight: 700; color: var(--ink); margin-top: 3px; font-size: 14.5px; }

.prose { font-size: 16.5px; }
.prose h2 { font-size: clamp(22px, 3vw, 28px); margin: 0 0 6px; }
.prose h3 { font-size: 18px; margin: 26px 0 6px; }
.prose p { margin: 14px 0; }
.prose ul { margin: 14px 0; padding-left: 22px; }
.prose li { margin: 7px 0; }
.prose strong { color: var(--ink); }
.lead-in { font-size: 18.5px; color: var(--body); }

.block { padding: 52px 0; }
.block + .block { border-top: 1px solid var(--line-soft); }

/* insight / callout */
.callout {
  background: linear-gradient(135deg, #fff, var(--bg-tint));
  border: 1px solid var(--line); border-left: 4px solid var(--warm);
  border-radius: 12px; padding: 18px 22px; margin: 22px 0; font-size: 16px;
}
.callout.accent { border-left-color: var(--accent); }
.callout b, .callout strong { color: var(--ink); }

/* pipeline steps */
.pipeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 26px 0; }
@media (max-width: 760px) { .pipeline { grid-template-columns: 1fr 1fr; } }
.step { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px 16px 18px; box-shadow: var(--shadow-sm); }
.step .n { width: 28px; height: 28px; border-radius: 8px; background: var(--accent-soft); color: var(--accent-ink); font-weight: 800; display: grid; place-items: center; font-size: 14px; margin-bottom: 10px; }
.step h4 { font-size: 15px; margin: 0 0 4px; }
.step p { font-size: 13.5px; color: var(--muted); margin: 0; line-height: 1.5; }

/* data table */
.table-wrap { overflow-x: auto; margin: 20px 0; border: 1px solid var(--line); border-radius: 12px; }
table.data { border-collapse: collapse; width: 100%; font-size: 14px; }
table.data th, table.data td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--line-soft); white-space: nowrap; }
table.data thead th { background: var(--bg-soft); color: var(--ink); font-weight: 700; font-size: 12.5px; text-transform: uppercase; letter-spacing: .04em; }
table.data tbody tr:last-child td { border-bottom: none; }
table.data td.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data .partial { color: var(--muted); }

/* code */
pre.code {
  background: #0f1722; color: #cfe3ff; border-radius: 12px; padding: 18px 20px;
  overflow-x: auto; font-family: var(--mono); font-size: 13px; line-height: 1.6; margin: 18px 0;
  border: 1px solid #1c2a3a;
}
pre.code .c { color: #6b7e93; }
pre.code .k { color: #7cd3c6; }
code.inline { font-family: var(--mono); font-size: .88em; background: var(--bg-soft); border: 1px solid var(--line); padding: 1px 6px; border-radius: 6px; color: var(--ink); }

/* sources */
.sources { font-size: 13.5px; color: var(--muted); line-height: 1.9; }
.sources a { color: var(--body); }

/* =========================================================================
   DARK DASHBOARD PANEL (the project centerpiece)
   ========================================================================= */
.dashboard {
  background: var(--d-bg); color: var(--d-ink); border-radius: 18px;
  padding: 28px 26px 30px; margin: 8px 0; box-shadow: var(--shadow-lg);
  border: 1px solid #22344a;
}
.dashboard .d-eyebrow { color: var(--d-accent); font-weight: 700; letter-spacing: .12em; font-size: 11.5px; text-transform: uppercase; }
.dashboard h3.d-title { color: #fff; font-size: 22px; margin: 6px 0 2px; }
.dashboard .d-sub { color: var(--d-muted); font-size: 14px; margin: 0 0 18px; }

.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 18px; }
.kpi { background: var(--d-panel); border: 1px solid var(--d-line); border-radius: 12px; padding: 14px 16px; min-width: 0; }
.kpi .label { color: var(--d-muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; }
.kpi .val { font-size: 26px; font-weight: 800; margin-top: 5px; color: #fff; }
.kpi .delta { font-size: 12px; margin-top: 3px; }
.kpi .up { color: #e67e51; } .kpi .down { color: #5fd0a8; } .kpi .flat { color: var(--d-muted); }

.d-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.d-card { background: var(--d-panel); border: 1px solid var(--d-line); border-radius: 12px; padding: 14px 16px; min-width: 0; }
.d-card.full { grid-column: 1 / -1; }
canvas { max-width: 100%; }
.d-card h4 { color: #fff; font-size: 15px; margin: 0 0 2px; font-weight: 700; }
.d-card .note { color: var(--d-muted); font-size: 12px; margin: 0 0 10px; }
.chartbox { position: relative; height: 300px; }
.chartbox.tall { height: 340px; }
.d-foot { color: var(--d-muted); font-size: 11.5px; margin-top: 16px; line-height: 1.6; }

@media (max-width: 760px) {
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .d-grid { grid-template-columns: 1fr; }
  .dashboard { padding: 20px 16px 22px; }
}
@media (max-width: 540px) {
  .proj-meta { gap: 16px; }
}

/* =========================================================================
   EDITORIAL / PUBLICATION (home feed + article byline)
   ========================================================================= */
.intro-links { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 24px; font-weight: 600; font-size: 15px; }
.intro-links a { color: var(--body); display: inline-flex; align-items: center; gap: 7px; }
.intro-links a:hover { color: var(--accent-ink); text-decoration: none; }

/* a single article entry on the home feed */
.post {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm); transition: .18s ease;
}
.post:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: #d4dbe4; }
.post .card-link { color: inherit; display: grid; grid-template-columns: 320px 1fr; }
.post .card-link:hover { text-decoration: none; }
.post .thumb { height: 100%; min-height: 220px; border-bottom: none; border-right: 1px solid var(--line); }
.post .body { padding: 28px 30px; display: flex; flex-direction: column; gap: 0; }
.post .kicker { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-size: 12.5px; color: var(--muted); font-weight: 600; margin-bottom: 10px; }
.post .kicker .topic { color: var(--accent-ink); text-transform: uppercase; letter-spacing: .07em; }
.post .kicker .sep { opacity: .5; }
.post h3 { font-size: 25px; margin: 0 0 10px; letter-spacing: -.025em; }
.post .dek { color: var(--body); font-size: 15.5px; line-height: 1.6; margin: 0 0 18px; }
.post .read { margin-top: auto; color: var(--accent-ink); font-weight: 700; font-size: 14.5px; }
@media (max-width: 720px) {
  .post .card-link { grid-template-columns: 1fr; }
  .post .thumb { min-height: 150px; height: 150px; border-right: none; border-bottom: 1px solid var(--line); }
  .post .body { padding: 22px 22px 24px; }
  .post h3 { font-size: 21px; }
}

.feed-note { color: var(--muted); font-size: 14.5px; margin-top: 22px; }
.feed-note a { font-weight: 600; }

/* article byline + author card */
.byline { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin-top: 18px; color: var(--muted); font-size: 14.5px; }
.byline .author { color: var(--ink); font-weight: 700; }
.byline .sep { opacity: .5; }

.author-card { display: flex; gap: 18px; align-items: flex-start; background: var(--bg-soft); border: 1px solid var(--line); border-radius: 14px; padding: 22px 24px; margin: 10px 0; }
.author-card .ava { width: 52px; height: 52px; border-radius: 50%; flex: none; display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 19px; background: linear-gradient(135deg, var(--accent), #16a085); }
.author-card .who h4 { font-size: 16px; margin: 0 0 4px; }
.author-card .who p { margin: 0; font-size: 14.5px; color: var(--body); line-height: 1.55; }
.author-card .who a { font-weight: 600; }
@media (max-width: 540px) { .author-card { flex-direction: column; gap: 12px; } }