/* =============================================
   MOHAMMAD TALHA — PORTFOLIO STYLESHEET
   Dark luxury aesthetic with neon accents
   ============================================= */

:root {
  --bg: #060608;
  --bg2: #0b0b0f;
  --surface: #101018;
  --surface2: #161620;
  --border: rgba(255,255,255,0.07);
  --accent: #7DF9C2;
  --accent2: #4f9eff;
  --accent3: #c084fc;
  --text: #e8e8f0;
  --text-muted: #7a7a96;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --radius: 16px;
  --transition: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
}

/* ---- NOISE ---- */
.noise {
  position: fixed; inset: 0; z-index: 9999;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.5;
}

/* ---- CURSOR ---- */
.cursor {
  position: fixed; width: 40px; height: 40px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  pointer-events: none; z-index: 10000;
  transform: translate(-50%,-50%);
  transition: transform 0.15s ease, width 0.3s, height 0.3s, border-color 0.3s;
  mix-blend-mode: difference;
}
.cursor-dot {
  position: fixed; width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none; z-index: 10001;
  transform: translate(-50%,-50%);
}
.cursor.hovering { width: 70px; height: 70px; border-color: var(--accent3); }

/* ---- TYPOGRAPHY ---- */
h1,h2,h3,h4 { font-family: var(--font-display); line-height: 1.1; }
h2 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; margin-bottom: 2.5rem; }
h3 { font-size: 1.2rem; font-weight: 700; }
a { text-decoration: none; color: inherit; }

/* ---- CONTAINER ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }

/* ---- SECTION LABEL ---- */
.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.2rem;
}

/* ---- REVEAL ANIMATION ---- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ======================== NAV ======================== */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.5rem 3rem;
  transition: background 0.4s, backdrop-filter 0.4s, padding 0.4s;
}
nav.scrolled {
  background: rgba(6,6,8,0.85);
  backdrop-filter: blur(20px);
  padding: 1rem 3rem;
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.3s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -4px; left: 0; right: 0; height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.3s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-cta {
  background: var(--accent);
  color: #000;
  padding: 0.55rem 1.4rem;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 700;
  transition: background 0.3s, transform 0.2s;
}
.nav-cta:hover { background: #a8ffd8; transform: scale(1.04); }

/* Hamburger */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: none; padding: 4px;
}
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); transition: 0.3s; }

/* Mobile Menu */
.mobile-menu {
  position: fixed; inset: 0; z-index: 999;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transform: translateY(-100%);
  transition: transform 0.5s var(--transition);
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu ul { list-style: none; text-align: center; }
.mobile-menu ul li { margin: 1.5rem 0; }
.mobile-menu ul li a {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-muted);
  transition: color 0.3s;
}
.mobile-menu ul li a:hover { color: var(--accent); }

/* ======================== HERO ======================== */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 120px 3rem 4rem;
  position: relative; overflow: hidden;
}
.hero-bg-text {
  position: absolute;
  font-family: var(--font-display);
  font-size: clamp(6rem, 18vw, 18rem);
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,0.04);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  animation: bgTextFloat 8s ease-in-out infinite;
}
@keyframes bgTextFloat {
  0%,100% { transform: translate(-50%,-52%); }
  50% { transform: translate(-50%,-48%); }
}
.hero-content {
  position: relative; z-index: 1;
  max-width: 800px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: rgba(125,249,194,0.1);
  border: 1px solid rgba(125,249,194,0.3);
  color: var(--accent);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  animation: pulse 2.5s ease-in-out infinite;
}
.hero-badge::before {
  content: ''; width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  animation: blink 1.5s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(125,249,194,0.2); }
  50% { box-shadow: 0 0 0 8px rgba(125,249,194,0); }
}

.hero-name {
  font-size: clamp(3.5rem, 9vw, 8rem);
  font-weight: 800;
  line-height: 1;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}
.hero-name span { color: var(--accent); }

.hero-tagline {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--accent2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}
.hero-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}
.hero-desc strong { color: var(--text); }

.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-primary {
  background: var(--accent);
  color: #000;
  padding: 0.9rem 2.2rem;
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.3s;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(125,249,194,0.3);
}
.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.9rem 2.2rem;
  border-radius: 100px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: border-color 0.3s, background 0.3s;
}
.btn-ghost:hover { border-color: var(--accent); background: rgba(125,249,194,0.05); }

/* Scroll indicator */
.hero-scroll-indicator {
  position: absolute; bottom: 3rem; left: 3rem;
  display: flex; align-items: center; gap: 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.scroll-line {
  width: 60px; height: 1px;
  background: var(--text-muted);
  position: relative; overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute; inset: 0;
  background: var(--accent);
  animation: scrollSlide 1.8s ease-in-out infinite;
}
@keyframes scrollSlide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(200%); }
}

/* Orbs */
.orb {
  position: absolute; border-radius: 50%;
  filter: blur(80px); pointer-events: none; z-index: 0;
}
.orb1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(125,249,194,0.12) 0%, transparent 70%);
  top: -100px; right: -100px;
  animation: orbFloat1 10s ease-in-out infinite;
}
.orb2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(79,158,255,0.1) 0%, transparent 70%);
  bottom: 0; left: 30%;
  animation: orbFloat2 13s ease-in-out infinite;
}
.orb3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(192,132,252,0.08) 0%, transparent 70%);
  top: 50%; left: 10%;
  animation: orbFloat1 9s ease-in-out infinite reverse;
}
@keyframes orbFloat1 { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-30px)} }
@keyframes orbFloat2 { 0%,100%{transform:translateY(0)} 50%{transform:translateY(25px)} }

/* ======================== ABOUT ======================== */
.about {
  padding: 8rem 0;
  background: var(--bg2);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 4rem;
  align-items: start;
}
.about-text h2 { margin-bottom: 1.5rem; }
.about-text h2 em { font-style: normal; color: var(--accent); }
.about-text p {
  color: var(--text-muted);
  margin-bottom: 1.2rem;
  font-size: 1.05rem;
}
.about-text strong { color: var(--text); }

.about-stats {
  display: flex; gap: 2.5rem;
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}
.stat span {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.stat p { font-size: 0.85rem; color: var(--text-muted); margin-top: 0.3rem; }

/* About card */
.about-card {
  position: sticky; top: 100px;
}
.card-inner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}
.card-inner::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2), var(--accent3));
}
.card-tag {
  display: inline-block;
  background: rgba(125,249,194,0.1);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  margin-bottom: 1.2rem;
}
.card-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}
.card-loc { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.card-links {
  display: flex; gap: 0.8rem; margin-bottom: 1.5rem; flex-wrap: wrap;
}
.card-links a {
  background: var(--surface2);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: border-color 0.3s, background 0.3s;
}
.card-links a:hover { border-color: var(--accent); background: rgba(125,249,194,0.05); }
.card-availability {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
}

/* ======================== SKILLS ======================== */
.skills {
  padding: 8rem 0;
  background: var(--bg);
}
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
.skill-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color 0.3s;
}
.skill-group:hover { border-color: rgba(125,249,194,0.3); }
.skill-group h4 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
}
.skill-tags { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.skill-tags span {
  background: var(--surface2);
  border: 1px solid var(--border);
  padding: 0.4rem 0.9rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  transition: border-color 0.3s, color 0.3s, background 0.3s;
}
.skill-tags span:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(125,249,194,0.05);
}

/* ======================== WORK ======================== */
.work {
  padding: 8rem 0;
  background: var(--bg2);
}
.projects-category { margin-bottom: 1.5rem; }
.cat-label {
  display: inline-block;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.5rem 1.2rem;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform 0.3s var(--transition), border-color 0.3s, box-shadow 0.3s;
  position: relative;
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: rgba(125,249,194,0.3);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.proj-img {
  height: 140px;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.proj-img::after {
  content: '';
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.1);
  transition: background 0.3s;
}
.project-card:hover .proj-img::after { background: rgba(0,0,0,0); }
.proj-logo {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: rgba(255,255,255,0.15);
  letter-spacing: -0.02em;
  z-index: 1;
  transition: color 0.3s, transform 0.3s;
}
.project-card:hover .proj-logo { color: rgba(255,255,255,0.3); transform: scale(1.1); }

.proj-info { padding: 1.2rem 1.2rem 0.8rem; flex: 1; }
.proj-info h3 { margin-bottom: 0.3rem; font-size: 1rem; }
.proj-info p { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 0.6rem; }
.proj-tech {
  display: inline-block;
  background: rgba(125,249,194,0.08);
  border: 1px solid rgba(125,249,194,0.2);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.7rem;
  border-radius: 6px;
  letter-spacing: 0.05em;
}
.proj-arrow {
  position: absolute; top: 1rem; right: 1rem;
  font-size: 1rem;
  opacity: 0; color: var(--accent);
  transform: translate(-4px, 4px);
  transition: opacity 0.3s, transform 0.3s;
}
.project-card:hover .proj-arrow { opacity: 1; transform: translate(0,0); }

/* ======================== CERTS ======================== */
.certs {
  padding: 8rem 0;
  background: var(--bg);
}
.certs-list { display: flex; flex-direction: column; gap: 1rem; }
.cert-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  display: flex; align-items: flex-start; gap: 1.2rem;
  transition: border-color 0.3s, background 0.3s;
}
.cert-item:hover {
  border-color: rgba(125,249,194,0.3);
  background: var(--surface2);
}
.cert-icon { font-size: 1.5rem; flex-shrink: 0; margin-top: 0.1rem; }
.cert-info h4 { font-size: 1rem; margin-bottom: 0.3rem; }
.cert-info p { font-size: 0.85rem; color: var(--text-muted); }

/* ======================== CONTACT ======================== */
.contact {
  padding: 8rem 0;
  background: var(--bg2);
  text-align: center;
}
.contact-sub {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto 3.5rem;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
  max-width: 700px;
  margin: 0 auto;
}
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex; align-items: center; gap: 1.2rem;
  text-align: left;
  transition: border-color 0.3s, transform 0.2s, background 0.3s;
}
.contact-card:hover {
  border-color: rgba(125,249,194,0.3);
  transform: translateY(-3px);
  background: var(--surface2);
}
.cc-icon { font-size: 1.5rem; flex-shrink: 0; }
.cc-text { flex: 1; }
.cc-text span { display: block; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 0.2rem; }
.cc-text p { font-size: 0.9rem; font-weight: 500; }
.cc-arrow { color: var(--accent); font-size: 1rem; opacity: 0; transition: opacity 0.3s; }
.contact-card:hover .cc-arrow { opacity: 1; }

/* ======================== FOOTER ======================== */
footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.footer-inner {
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  text-align: center;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}
.footer-logo span { color: var(--accent); }
footer p { font-size: 0.85rem; color: var(--text-muted); }

/* ======================== RESPONSIVE ======================== */
@media (max-width: 900px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .about-card { position: static; }
  .skills-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  nav { padding: 1.2rem 1.5rem; }
  nav.scrolled { padding: 0.8rem 1.5rem; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .hero { padding: 100px 1.5rem 4rem; }
  .hero-scroll-indicator { display: none; }
  .projects-grid { grid-template-columns: 1fr; }
  .container { padding: 0 1.5rem; }
  .about, .skills, .work, .certs, .contact { padding: 5rem 0; }
  .about-stats { flex-direction: column; gap: 1.5rem; }
}

/* Parallax layers */
[data-parallax] { will-change: transform; }