/* ============================================================
   Manzur Ahammed — Portfolio styles
   ============================================================ */

/* ---- Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,400;0,500;0,700;0,800;1,400&display=swap');

/* ---- Reset ---- */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg:     #F4F1EA;
  --ink:    #17160F;
  --muted:  #6E6857;
  --line:   rgba(20, 18, 10, 0.16);
  --card:   #EDE8DC;
  --accent: #E5451E;
}

/* Dark theme (toggle adds .dark to <body>) */
body.dark {
  --bg:     #100F09;
  --ink:    #F1EEE4;
  --muted:  #8C8877;
  --line:   rgba(255, 255, 255, 0.15);
  --card:   #1A1810;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-weight: 400;
  min-height: 100vh;
}

/* ---- Page shell ---- */
.page {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
}

.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .4;
  mask-image: radial-gradient(circle at 50% 30%, rgba(0,0,0,.55), transparent 78%);
}

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.02em;
}
.brand-dot {
  width: 9px;
  height: 9px;
  background: var(--accent);
  display: inline-block;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.nav-link {
  text-decoration: none;
  color: var(--muted);
  transition: color .2s ease;
}
.nav-link:hover { color: var(--ink); }

/* ---- Layout ---- */
.container {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 26px;
}

.accent { color: var(--accent); }
.ink { color: var(--ink); }
.underline-accent { border-bottom: 2px solid var(--accent); }

/* ---- Hero ---- */
.hero { padding: clamp(56px, 11vh, 120px) 0 clamp(48px, 8vh, 80px); }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 26px;
}
.eyebrow-dot { color: var(--accent); font-weight: 700; }
.eyebrow-line { flex: 1; height: 1px; background: var(--line); }

.hero-title {
  margin: 0;
  font-weight: 800;
  font-size: clamp(44px, 10.2vw, 138px);
  line-height: 0.92;
  letter-spacing: -0.045em;
}

.hero-body {
  margin-top: 34px;
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  align-items: flex-start;
}
.hero-lead {
  margin: 0;
  max-width: 560px;
  font-size: clamp(16px, 2.1vw, 20px);
  line-height: 1.55;
  font-weight: 500;
}
.hero-meta {
  display: grid;
  grid-template-columns: auto auto;
  gap: 6px 20px;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  align-self: flex-end;
}
.hero-meta .val { color: var(--ink); }

.hero-actions {
  margin-top: 40px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  text-decoration: none;
  padding: 13px 22px;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); }
.arrow { display: inline-block; transition: transform .2s ease; }
.btn:hover .arrow,
.proj:hover .arrow { transform: translate(2px, -2px); }

/* ---- Section header ---- */
.section { padding: clamp(48px, 8vh, 90px) 0; }
.section-head {
  display: flex;
  align-items: baseline;
  gap: 18px;
  border-top: 1px solid var(--line);
  padding-top: 22px;
  margin-bottom: 42px;
}
.section-num { color: var(--accent); font-weight: 800; font-size: 14px; }
.section-label {
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---- About ---- */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 36px;
}
.about-lead {
  margin: 0 0 20px;
  font-size: clamp(18px, 2.4vw, 25px);
  line-height: 1.5;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.about-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 560px;
}
.metrics-card {
  border: 1px solid var(--line);
  padding: 26px;
  background: var(--card);
  align-self: start;
}
.metrics-title {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
}
.metrics-list { display: flex; flex-direction: column; gap: 18px; }
.metric-num {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
}
.metric-label {
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ---- Experience ---- */
.exp-list { display: flex; flex-direction: column; }
.exp-row {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
  gap: 24px 40px;
}
.exp-row:last-child { border-bottom: 1px solid var(--line); }
.exp-current {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 10px;
}
.exp-company { font-size: 21px; font-weight: 800; letter-spacing: -0.02em; }
.exp-title { font-size: 14px; color: var(--ink); margin-top: 4px; }
.exp-dates { font-size: 12px; color: var(--muted); margin-top: 8px; letter-spacing: 0.03em; }
.exp-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.exp-point {
  display: flex;
  gap: 12px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--muted);
}
.exp-point .bullet { color: var(--accent); }

/* ---- Skills ---- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.skill-cell { background: var(--bg); padding: 24px; }
.skill-title {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 16px;
}
.skill-items { display: flex; flex-direction: column; gap: 9px; font-size: 14px; }

/* ---- Projects ---- */
.projects { border-top: 1px solid var(--line); }
.proj {
  text-decoration: none;
  color: inherit;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: baseline;
  padding: 22px 12px;
  border-bottom: 1px solid var(--line);
  transition: background .2s ease;
}
.proj:hover { background: var(--card); }
.proj-num { font-size: 12px; color: var(--muted); font-weight: 700; }
.proj-name { font-size: 19px; font-weight: 800; letter-spacing: -0.02em; }
.proj-desc { display: block; font-size: 13px; color: var(--muted); margin-top: 5px; }
.proj-meta { display: flex; align-items: center; gap: 14px; }
.proj-tag {
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.proj .arrow { font-size: 18px; color: var(--muted); }

/* ---- Contact ---- */
.contact-title {
  margin: 0 0 30px;
  font-weight: 800;
  font-size: clamp(30px, 6vw, 64px);
  line-height: 1.0;
  letter-spacing: -0.04em;
  max-width: 14ch;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 26px 40px;
  max-width: 820px;
}
.contact-label {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.contact-link {
  color: inherit;
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  word-break: break-all;
}
.contact-link:hover { color: var(--accent); }
.copied {
  display: none;
  font-size: 11px;
  color: var(--accent);
  margin-left: 8px;
  letter-spacing: 0.06em;
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 26px 0 40px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

@media (max-width: 640px) {
  .hero-meta { align-self: flex-start; }
}

