/* ============================================================
   Parvez Mosharaf Siam — Portfolio
   Dark hacker/terminal theme
   ============================================================ */

:root {
  --bg: #06090a;
  --bg-alt: #0a0f10;
  --surface: #0e1516;
  --surface-2: #121b1c;
  --border: rgba(0, 255, 157, 0.14);
  --border-strong: rgba(0, 255, 157, 0.35);
  --green: #00ff9d;
  --green-soft: #39ff9d;
  --green-dim: #0e7a52;
  --cyan: #4dd8ff;
  --text: #e6f4ee;
  --text-dim: #93a8a2;
  --text-faint: #5c6f6a;
  --danger: #ff5c5c;
  --radius: 14px;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: "Space Grotesk", "Inter", ui-sans-serif, system-ui, sans-serif;
  --maxw: 1160px;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

::selection { background: var(--green); color: #04140d; }

a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
img { max-width: 100%; display: block; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--green-dim); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--green); }

/* ---------- Matrix canvas ---------- */
#matrixCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.16;
  pointer-events: none;
}

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--green), var(--cyan));
  z-index: 9999;
  box-shadow: 0 0 12px var(--green);
  transition: width 0.1s ease-out;
}

/* ---------- Layout helpers ---------- */
main, .nav-inner, .footer-inner { position: relative; z-index: 1; }

.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 110px 24px;
}
.section-alt { background: linear-gradient(180deg, transparent, rgba(0,255,157,0.025) 15%, rgba(0,255,157,0.025) 85%, transparent); }

.section-head { margin-bottom: 52px; max-width: 760px; }
.section-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--green);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  padding: 4px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  background: rgba(0,255,157,0.05);
}
.section-head h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  margin: 0 0 12px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.section-sub { color: var(--text-dim); font-size: 1.02rem; max-width: 640px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 10px;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: var(--green);
  color: #04140d;
  box-shadow: 0 0 0 rgba(0,255,157,0.0);
}
.btn-primary:hover {
  box-shadow: 0 0 24px rgba(0,255,157,0.45);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--green);
  color: var(--green);
  transform: translateY(-2px);
}
.btn-block { width: 100%; }
.btn-small { padding: 9px 16px; font-size: 0.8rem; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; transform: none !important; }

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  background: rgba(6, 9, 10, 0.65);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(6, 9, 10, 0.88);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: -0.01em;
}
.logo-bracket { color: var(--green); }
.nav-links {
  display: flex;
  gap: 28px;
  font-family: var(--mono);
  font-size: 0.88rem;
  color: var(--text-dim);
  flex: 1;
  justify-content: center;
}
.nav-links a { transition: color 0.2s ease; position: relative; }
.nav-links a:hover { color: var(--green); }
.nav-cta { display: inline-flex; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 140px 24px 80px;
  position: relative;
}
.hero-inner { max-width: 860px; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--green);
  letter-spacing: 0.06em;
  border: 1px solid var(--border-strong);
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  background: rgba(0,255,157,0.05);
}
.hero-eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: pulse 1.6s infinite ease-in-out;
}
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1);} 50% { opacity: 0.4; transform: scale(0.75);} }

.hero-title { margin: 0 0 18px; }
.glitch {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(2.2rem, 6.4vw, 4.4rem);
  letter-spacing: -0.02em;
  position: relative;
  display: inline-block;
  color: var(--text);
  text-shadow: 0 0 30px rgba(0,255,157,0.25);
}
.glitch::before, .glitch::after {
  content: attr(data-text);
  position: absolute;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: var(--bg);
  overflow: hidden;
  clip-path: inset(0 0 0 0);
}
.glitch::before {
  color: var(--cyan);
  left: 2px;
  animation: glitchTop 5s infinite linear alternate-reverse;
}
.glitch::after {
  color: #ff2e88;
  left: -2px;
  animation: glitchBottom 5.5s infinite linear alternate-reverse;
}
@keyframes glitchTop {
  0%, 92%, 100% { clip-path: inset(0 0 100% 0); transform: translate(0,0); opacity: 0; }
  93% { clip-path: inset(0 0 60% 0); transform: translate(-2px,-1px); opacity: 0.8; }
  95% { clip-path: inset(30% 0 40% 0); transform: translate(2px,1px); opacity: 0.8; }
  97% { clip-path: inset(60% 0 5% 0); transform: translate(-1px,1px); opacity: 0.8; }
}
@keyframes glitchBottom {
  0%, 90%, 100% { clip-path: inset(100% 0 0 0); transform: translate(0,0); opacity: 0; }
  91% { clip-path: inset(70% 0 0 0); transform: translate(2px,1px); opacity: 0.8; }
  94% { clip-path: inset(20% 0 50% 0); transform: translate(-2px,-1px); opacity: 0.8; }
  98% { clip-path: inset(0 0 70% 0); transform: translate(1px,-1px); opacity: 0.8; }
}

.hero-subtitle {
  font-family: var(--mono);
  font-weight: 500;
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  color: var(--green-soft);
  margin: 0 0 22px;
  min-height: 1.6em;
}
.cursor-blink { animation: blink 1s step-end infinite; color: var(--green); }
@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 620px;
  margin: 0 auto 36px;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 56px; }

.hero-stats { display: flex; gap: 48px; justify-content: center; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num {
  font-family: var(--mono);
  font-size: 2rem;
  font-weight: 800;
  color: var(--green);
  text-shadow: 0 0 20px rgba(0,255,157,0.35);
}
.stat-num::after { content: "+"; }
.stat-label { font-size: 0.82rem; color: var(--text-faint); font-family: var(--mono); margin-top: 4px; }

.scroll-cue {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--green);
  font-size: 1.2rem;
  animation: bob 2s infinite ease-in-out;
  opacity: 0.75;
}
@keyframes bob { 0%,100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 8px); } }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}
.about-text p { color: var(--text-dim); margin: 0 0 16px; font-size: 1.02rem; }
.about-text strong { color: var(--text); }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.tag {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--green);
  border: 1px solid var(--border);
  background: rgba(0,255,157,0.05);
  padding: 6px 12px;
  border-radius: 100px;
}

.terminal-window {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 40px rgba(0,255,157,0.06);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.terminal-bar .dot { width: 11px; height: 11px; border-radius: 50%; }
.terminal-bar .dot.red { background: #ff5f56; }
.terminal-bar .dot.yellow { background: #ffbd2e; }
.terminal-bar .dot.green { background: #27c93f; }
.terminal-title { font-family: var(--mono); font-size: 0.78rem; color: var(--text-faint); margin-left: 8px; }
.terminal-body { padding: 20px; overflow-x: auto; }
.terminal-body pre { margin: 0; }
.terminal-body code {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.7;
  white-space: pre;
}
.tk-cmt { color: var(--text-faint); }
.tk-key { color: var(--cyan); }
.tk-str { color: var(--green-soft); }

/* ---------- Platforms ---------- */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.platform-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  text-align: center;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  position: relative;
  overflow: hidden;
}
.platform-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(0,255,157,0.12), transparent 60%);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.platform-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 16px 40px rgba(0,0,0,0.4), 0 0 30px rgba(0,255,157,0.12);
}
.platform-card:hover::before { opacity: 1; }
.platform-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.4rem;
  background: rgba(0,255,157,0.08);
  color: var(--green);
  position: relative; z-index: 1;
}
.platform-card h3 { margin: 0 0 6px; font-size: 1.1rem; position: relative; z-index: 1; }
.platform-card p { margin: 0 0 16px; color: var(--text-faint); font-family: var(--mono); font-size: 0.8rem; word-break: break-word; position: relative; z-index: 1; }
.platform-link {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--green);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  position: relative; z-index: 1;
}

/* ---------- Forensics ---------- */
.forensics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.forensics-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.forensics-card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.forensics-card i { font-size: 1.5rem; color: var(--green); margin-bottom: 14px; display: block; }
.forensics-card h4 { margin: 0 0 8px; font-size: 1.02rem; }
.forensics-card p { margin: 0; color: var(--text-dim); font-size: 0.92rem; }

.ctf-strip {
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 24px 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  background: rgba(0,255,157,0.03);
}
.ctf-strip-label { font-family: var(--mono); color: var(--text-dim); font-size: 0.88rem; margin: 0; }
.ctf-logos { display: flex; gap: 10px; flex-wrap: wrap; }
.ctf-badge {
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--green);
  border: 1px solid var(--border-strong);
  padding: 7px 14px;
  border-radius: 8px;
  background: var(--surface);
}
.ctf-badge-more { color: var(--text-faint); border-style: dashed; }

/* ---------- Pricing ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.price-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.price-card:hover { transform: translateY(-6px); border-color: var(--border-strong); }
.price-featured {
  border-color: var(--green);
  box-shadow: 0 0 40px rgba(0,255,157,0.15);
  background: linear-gradient(180deg, rgba(0,255,157,0.06), var(--surface) 40%);
}
.price-badge {
  position: absolute;
  top: -13px; left: 24px;
  background: var(--green);
  color: #04140d;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 100px;
  letter-spacing: 0.03em;
}
.price-tier { font-family: var(--mono); color: var(--text-dim); text-transform: uppercase; font-size: 0.82rem; letter-spacing: 0.06em; margin-bottom: 10px; }
.price-amount { font-family: var(--mono); font-size: 1.9rem; font-weight: 800; color: var(--green); margin-bottom: 14px; }
.price-amount span { font-size: 1rem; font-weight: 500; color: var(--text-faint); }
.price-desc { color: var(--text-dim); font-size: 0.9rem; margin: 0 0 20px; min-height: 58px; }
.price-features { display: flex; flex-direction: column; gap: 10px; margin-bottom: 26px; flex: 1; }
.price-features li { display: flex; align-items: flex-start; gap: 9px; font-size: 0.86rem; color: var(--text-dim); }
.price-features i { color: var(--green); margin-top: 3px; font-size: 0.78rem; }

.pricing-note {
  margin-top: 32px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(0,255,157,0.03);
}
.pricing-note i { color: var(--green); margin-top: 3px; }
.pricing-note p { margin: 0; color: var(--text-dim); font-size: 0.9rem; }

/* ---------- Testimonials ---------- */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.testimonial-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: block;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.testimonial-card:hover { transform: translateY(-6px); border-color: var(--border-strong); }
.quote-icon { color: var(--green); opacity: 0.5; font-size: 1.2rem; margin-bottom: 14px; display: block; }
.testimonial-quote { color: var(--text-dim); font-size: 0.95rem; margin: 0 0 22px; font-style: italic; }
.testimonial-meta { display: flex; flex-direction: column; gap: 2px; border-top: 1px solid var(--border); padding-top: 14px; }
.testimonial-author { font-weight: 600; font-size: 0.9rem; }
.testimonial-source { font-family: var(--mono); font-size: 0.78rem; color: var(--text-faint); }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
}
.contact-info { display: flex; flex-direction: column; gap: 18px; }
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color 0.2s ease;
}
a.contact-item:hover { border-color: var(--border-strong); }
.contact-item i { color: var(--green); font-size: 1.1rem; margin-top: 3px; }
.contact-item div { display: flex; flex-direction: column; gap: 3px; }
.contact-label { font-family: var(--mono); font-size: 0.75rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.05em; }
.contact-value { font-size: 0.95rem; color: var(--text); word-break: break-word; }
.contact-socials { display: flex; gap: 12px; margin-top: 6px; }
.contact-socials a {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-dim);
  transition: 0.2s ease;
}
.contact-socials a:hover { color: var(--green); border-color: var(--green); transform: translateY(-3px); }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.form-group label { font-family: var(--mono); font-size: 0.8rem; color: var(--text-dim); }
.form-group input, .form-group select, .form-group textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  resize: vertical;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(0,255,157,0.12);
}
.form-status {
  margin: 14px 0 0;
  font-family: var(--mono);
  font-size: 0.85rem;
  min-height: 1.2em;
}
.form-status.ok { color: var(--green); }
.form-status.err { color: var(--danger); }
.form-status.pending { color: var(--text-dim); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 36px 24px; }
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-inner p { color: var(--text-faint); font-size: 0.85rem; margin: 0; }
.footer-socials { display: flex; gap: 10px; }
.footer-socials a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-dim);
  transition: 0.2s ease;
  font-size: 0.85rem;
}
.footer-socials a:hover { color: var(--green); border-color: var(--green); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .forensics-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: rgba(6,9,10,0.97);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px;
    gap: 16px;
  }
  .form-row { grid-template-columns: 1fr; }
  .platform-grid, .forensics-grid, .pricing-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 28px; }
  .section { padding: 80px 20px; }
}