/* =========================================================
   Sayed Mohammad Hamza — Portfolio
   Design language: "the query that runs" — a data person's
   world is queries, result sets, and dashboards. The hero
   is a SQL query that types itself out and returns Hamza
   as a row of data.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --bg:        #0A0E16;
  --bg-alt:    #0E1220;
  --surface:   #141A29;
  --surface-2: #182036;
  --border:    #232B40;
  --text:      #E9ECF4;
  --text-muted:#8B93A9;
  --text-dim:  #5C6478;

  --blue:      #5B9CE6;
  --blue-dim:  #2E4A73;
  --amber:     #EFAA4C;
  --green:     #4FBF8B;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --container: 1080px;
  --radius: 10px;
  --transition: 220ms cubic-bezier(.4,.1,.2,1);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

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

img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }

::selection{ background: var(--blue-dim); color: #fff; }

.wrap{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
}
.eyebrow::before{ content: "// "; color: var(--text-dim); }

h1, h2, h3{ font-family: var(--font-display); font-weight: 600; margin: 0; letter-spacing: -0.01em; }

.section-head{ margin-bottom: 44px; }
.section-head h2{ font-size: clamp(26px, 3.4vw, 36px); margin-top: 10px; }
.section-head p{ color: var(--text-muted); max-width: 560px; margin-top: 12px; font-size: 15.5px; }

section{ padding: 108px 0; border-bottom: 1px solid var(--border); }
section:last-of-type{ border-bottom: none; }
.alt{ background: var(--bg-alt); }

/* reveal-on-scroll */
.reveal{ opacity: 0; transform: translateY(22px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.visible{ opacity: 1; transform: translateY(0); }
.stagger > *{ transition-delay: calc(var(--i, 0) * 90ms); }

/* =================== NAV =================== */
header{
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
}
header.scrolled{
  background: rgba(10,14,22,0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
nav.wrap{
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand{ font-family: var(--font-mono); font-weight: 600; font-size: 16px; color: var(--text); display:flex; align-items:center; gap:8px;}
.brand .dot{ width:8px; height:8px; border-radius:50%; background: var(--green); box-shadow: 0 0 8px var(--green); }

.nav-links{ display: flex; gap: 34px; list-style: none; margin: 0; padding: 0; }
.nav-links a{
  font-family: var(--font-mono); font-size: 13px; color: var(--text-muted);
  position: relative; padding: 6px 0; transition: color var(--transition);
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; height:1px; width:0;
  background: var(--blue); transition: width var(--transition);
}
.nav-links a:hover{ color: var(--text); }
.nav-links a:hover::after{ width: 100%; }

.nav-cta{
  font-family: var(--font-mono); font-size: 13px; color: var(--bg) !important;
  background: var(--blue); padding: 9px 18px; border-radius: 6px;
  transition: transform var(--transition), background var(--transition);
}
.nav-cta:hover{ background: #6facf0; transform: translateY(-1px); }

.nav-toggle{ display:none; background:none; border:1px solid var(--border); border-radius:6px; width:40px; height:40px; color:var(--text); font-size:18px; cursor:pointer; }

/* =================== HERO =================== */
.hero{
  min-height: 100vh; display:flex; align-items:center;
  padding-top: 110px; padding-bottom: 60px; border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse 700px 500px at 85% 8%, rgba(91,156,230,0.10), transparent 60%),
    radial-gradient(ellipse 500px 400px at 0% 100%, rgba(239,170,76,0.06), transparent 60%);
}
.hero .wrap{ display:grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }

.hero-copy .eyebrow{ margin-bottom: 18px; display:block; }
.hero-copy h1{ font-size: clamp(34px, 5vw, 54px); line-height: 1.08; }
.hero-copy h1 span{ color: var(--blue); }
.hero-copy .role-line{ font-family: var(--font-mono); color: var(--text-muted); font-size: 16px; margin-top: 16px; }
.hero-copy .role-line .cursor{ display:inline-block; width:8px; height:16px; background:var(--amber); margin-left:2px; vertical-align:-2px; animation: blink 1s step-end infinite; }
@keyframes blink{ 50%{ opacity:0; } }

.hero-actions{ display:flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.btn{
  font-family: var(--font-mono); font-size: 13.5px; padding: 12px 22px; border-radius: 7px;
  border: 1px solid var(--border); transition: all var(--transition); display:inline-flex; align-items:center; gap:8px;
}
.btn-primary{ background: var(--blue); color: var(--bg); border-color: var(--blue); font-weight: 600; }
.btn-primary:hover{ background:#6facf0; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(91,156,230,0.25); }
.btn-ghost{ color: var(--text); }
.btn-ghost:hover{ border-color: var(--blue); color: var(--blue); transform: translateY(-2px); }

/* query terminal */
.terminal{
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 30px 60px -20px rgba(0,0,0,0.5);
}
.terminal-bar{ display:flex; align-items:center; gap:8px; padding: 11px 14px; border-bottom: 1px solid var(--border); background: var(--surface-2); }
.terminal-bar span{ width:10px; height:10px; border-radius:50%; background: var(--text-dim); }
.terminal-bar .t-label{ margin-left: 8px; font-family: var(--font-mono); font-size: 11.5px; color: var(--text-dim); }
.terminal-body{ padding: 20px 22px; font-family: var(--font-mono); font-size: 13.5px; min-height: 230px; }
.terminal-body .prompt{ color: var(--green); }
#typed-query{ color: var(--text); white-space: pre-wrap; }
#typed-query .cur{ display:inline-block; width:7px; height:15px; background: var(--amber); vertical-align: -2px; animation: blink 0.9s step-end infinite; }

.result-table{ margin-top: 18px; width:100%; border-collapse: collapse; opacity:0; }
.result-table.show{ opacity:1; transition: opacity 500ms ease; }
.result-table td{ padding: 6px 0; border-bottom: 1px dashed var(--border); font-size: 12.5px; vertical-align: top; }
.result-table td:first-child{ color: var(--text-dim); width: 96px; }
.result-table td:last-child{ color: var(--text); }
.result-table .status-ok{ color: var(--green); }

.hero-photo-frame{ position:relative; }
.hero-photo{
  width: 100%; max-width: 300px; margin: 0 auto; border-radius: var(--radius);
  border: 1px solid var(--border); filter: grayscale(15%) contrast(1.03);
  aspect-ratio: 1/1; object-fit: cover;
}
.hero-photo-frame::after{
  content:""; position:absolute; inset:auto auto -14px -14px; width:70%; height:70%;
  border: 1px solid var(--blue-dim); border-radius: var(--radius); z-index:-1;
}

/* =================== ABOUT =================== */
.about-grid{ display:grid; grid-template-columns: 0.9fr 1.1fr; gap: 60px; align-items:start; }
.about-card{
  background: var(--surface); border:1px solid var(--border); border-radius: var(--radius); padding: 26px;
}
.about-card .fact{ display:flex; justify-content:space-between; padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.about-card .fact:last-child{ border-bottom:none; }
.about-card .fact .k{ color: var(--text-muted); font-family: var(--font-mono); font-size: 12px; }
.about-card .fact .v{ color: var(--text); text-align:right; }

.about-copy p{ color: var(--text-muted); margin: 0 0 18px; font-size: 15.5px; }
.about-copy strong{ color: var(--text); font-weight: 600; }
.pill-row{ display:flex; flex-wrap:wrap; gap:8px; margin-top: 22px; }
.pill{ font-family: var(--font-mono); font-size: 12px; padding: 6px 12px; border:1px solid var(--border); border-radius: 20px; color: var(--text-muted); }

/* =================== SKILLS =================== */
.skills-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.skill-card{ background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.skill-card h3{ font-size: 17px; display:flex; align-items:center; gap:10px; }
.skill-card h3 .tag{ font-family: var(--font-mono); font-size: 10.5px; color: var(--bg); background: var(--amber); padding: 3px 8px; border-radius: 4px; letter-spacing: 0.05em;}
.skill-card .tag.alt-tag{ background: var(--blue); }
.skill-row{ margin-top: 20px; }
.skill-row .label-row{ display:flex; justify-content:space-between; font-size: 13px; margin-bottom: 7px; }
.skill-row .label-row .pct{ font-family: var(--font-mono); color: var(--text-dim); font-size: 11.5px; }
.bar{ height: 6px; background: var(--bg-alt); border-radius: 4px; overflow:hidden; border: 1px solid var(--border); }
.bar > span{ display:block; height:100%; background: linear-gradient(90deg, var(--blue), var(--green)); border-radius: 4px; width:0; transition: width 1100ms cubic-bezier(.4,.1,.2,1); }

/* =================== PROJECTS =================== */
.project-grid{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.project-card{
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; display:flex; flex-direction:column; transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.project-card:hover{ transform: translateY(-5px); border-color: var(--blue-dim); box-shadow: 0 20px 40px -24px rgba(91,156,230,0.35); }
.project-card .p-top{ display:flex; justify-content:space-between; align-items:flex-start; gap:10px; }
.project-card h3{ font-size: 17.5px; }
.project-card .p-index{ font-family: var(--font-mono); font-size: 11px; color: var(--text-dim); }
.project-card p{ color: var(--text-muted); font-size: 14px; margin: 12px 0 16px; flex-grow: 1; }
.tag-row{ display:flex; flex-wrap:wrap; gap:6px; margin-bottom: 18px; }
.tag-row span{ font-family: var(--font-mono); font-size: 10.5px; color: var(--blue); background: rgba(91,156,230,0.09); border: 1px solid var(--blue-dim); padding: 3px 8px; border-radius: 4px; }
.p-links{ display:flex; gap: 16px; margin-top: auto; }
.p-links a{ font-family: var(--font-mono); font-size: 12.5px; color: var(--text); display:flex; align-items:center; gap:6px; border-bottom: 1px solid var(--border); padding-bottom: 2px; transition: color var(--transition), border-color var(--transition); }
.p-links a:hover{ color: var(--blue); border-color: var(--blue); }
.project-card.wide{ grid-column: span 2; }

/* =================== CERTS =================== */
.cert-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cert-card{
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; text-align:left; transition: border-color var(--transition), transform var(--transition);
}
.cert-card:hover{ border-color: var(--amber); transform: translateY(-3px); }
.cert-card .cert-icon{ width: 34px; height:34px; border-radius:8px; background: rgba(239,170,76,0.12); border:1px solid rgba(239,170,76,0.3); display:flex; align-items:center; justify-content:center; margin-bottom: 14px; color: var(--amber); font-family: var(--font-mono); font-size: 13px; font-weight:600; }
.cert-card h4{ font-family: var(--font-display); font-size: 14.5px; font-weight:600; margin: 0 0 4px; }
.cert-card span{ font-family: var(--font-mono); font-size: 11.5px; color: var(--text-dim); }
.cert-card.more{ display:flex; flex-direction:column; align-items:flex-start; justify-content:center; border-style:dashed; }
.cert-card.more a{ font-family: var(--font-mono); font-size:12.5px; color: var(--blue); margin-top:10px; }

/* =================== TIMELINE (resume) =================== */
.timeline{ position:relative; padding-left: 30px; }
.timeline::before{ content:""; position:absolute; left:5px; top:6px; bottom:6px; width:1px; background: var(--border); }
.tl-item{ position:relative; padding-bottom: 34px; }
.tl-item:last-child{ padding-bottom:0; }
.tl-item::before{ content:""; position:absolute; left:-30px; top:4px; width:11px; height:11px; border-radius:50%; background: var(--bg); border: 2px solid var(--blue); }
.tl-item .tl-date{ font-family: var(--font-mono); font-size: 11.5px; color: var(--text-dim); text-transform:uppercase; letter-spacing:0.06em; }
.tl-item h3{ font-size: 17px; margin-top: 6px; }
.tl-item p{ color: var(--text-muted); font-size: 14px; margin-top:6px; }

/* =================== CONTACT =================== */
.contact-wrap{ display:grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items:center; }
.contact-links{ display:flex; flex-direction:column; gap: 14px; }
.contact-link{
  display:flex; align-items:center; justify-content:space-between; padding: 16px 20px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  transition: border-color var(--transition), transform var(--transition);
}
.contact-link:hover{ border-color: var(--blue); transform: translateX(4px); }
.contact-link .k{ font-family: var(--font-mono); font-size: 11.5px; color: var(--text-dim); text-transform: uppercase; letter-spacing:0.06em; }
.contact-link .v{ font-size: 14.5px; margin-top: 4px; }
.contact-link .arrow{ color: var(--blue); font-family: var(--font-mono); }

.contact-cta{ background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; }
.contact-cta .status-line{ font-family: var(--font-mono); font-size: 12.5px; color: var(--green); display:flex; align-items:center; gap:8px; margin-bottom: 16px; }
.contact-cta .status-line .dot{ width:7px; height:7px; border-radius:50%; background:var(--green); box-shadow:0 0 8px var(--green); }
.contact-cta h3{ font-size: 22px; margin-bottom: 12px; }
.contact-cta p{ color: var(--text-muted); font-size: 14.5px; margin-bottom: 22px; }

footer{ padding: 34px 0; }
.footer-row{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; }
footer, footer a{ font-family: var(--font-mono); font-size: 12.5px; color: var(--text-dim); }
footer a:hover{ color: var(--blue); }

/* =================== RESPONSIVE =================== */
@media (max-width: 900px){
  .hero .wrap{ grid-template-columns: 1fr; }
  .hero-photo-frame{ order: -1; max-width: 220px; margin: 0 auto 10px; }
  .about-grid{ grid-template-columns: 1fr; }
  .skills-grid{ grid-template-columns: 1fr; }
  .project-grid{ grid-template-columns: 1fr; }
  .project-card.wide{ grid-column: span 1; }
  .cert-grid{ grid-template-columns: repeat(2, 1fr); }
  .contact-wrap{ grid-template-columns: 1fr; }
  .nav-links{ display:none; }
  .nav-toggle{ display:block; }
}

@media (max-width: 900px){
  .nav-links.open{
    display:flex; position:absolute; top:72px; left:0; right:0; background: var(--bg-alt);
    flex-direction:column; padding: 20px 28px; border-bottom: 1px solid var(--border); gap: 18px;
  }
}

@media (max-width: 560px){
  section{ padding: 76px 0; }
  .cert-grid{ grid-template-columns: 1fr; }
  .hero-actions{ flex-direction: column; align-items: stretch; }
}