/* =============================================
   SALIM NAEEM — PORTFOLIO STYLES
   Dark Corporate Theme | Syne + DM Sans
   ============================================= */

/* ---------- CSS Variables ---------- */
:root {
  --bg:         #0a0a0a;
  --bg-2:       #111111;
  --bg-3:       #1a1a1a;
  --border:     #222222;
  --border-light: #2e2e2e;
  --text:       #f0f0f0;
  --text-muted: #888888;
  --text-dim:   #555555;
  --accent:     #3b82f6;        /* Blue accent */
  --accent-dim: rgba(59,130,246,0.12);
  --accent-glow:rgba(59,130,246,0.25);
  --white:      #ffffff;
  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --radius:     8px;
  --radius-lg:  16px;
  --transition: 0.25s ease;
  --max-w:      1200px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.65;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---------- Utility ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.accent { color: var(--accent); }
.dot { color: var(--accent); }

/* ---------- SCROLLBAR ---------- */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 4px; }

/* =============================================
   NAVBAR
   ============================================= */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 24px;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
#navbar.scrolled {
  background: rgba(10,10,10,0.98);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--white);
}
.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
}
.nav-links li a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.3px;
  transition: color var(--transition);
}
.nav-links li a:hover { color: var(--white); }
.nav-cta {
  padding: 8px 20px;
  background: var(--accent);
  color: var(--white) !important;
  border-radius: var(--radius);
  font-weight: 600 !important;
  transition: opacity var(--transition) !important;
}
.nav-cta:hover { opacity: 0.85; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.hamburger span {
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================================
   SECTION SHARED STYLES
   ============================================= */
section {
  padding: 100px 0;
}
.section-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  color: var(--white);
  margin-bottom: 48px;
}

/* =============================================
   HERO
   ============================================= */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}
/* Subtle grid background */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.35;
  pointer-events: none;
}
/* Glow blob */
#hero::after {
  content: '';
  position: absolute;
  top: 20%;
  right: 10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(59,130,246,0.25);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
}
.hero-eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--white);
  margin-bottom: 12px;
}
.hero-role {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 0.3px;
}
.hero-tagline {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 460px;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border-light);
}

/* --- Code Card --- */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.code-card {
  background: var(--bg-3);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 32px 64px rgba(0,0,0,0.5), 0 0 0 1px var(--border);
}
.code-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}
.code-header .dot {
  width: 11px; height: 11px;
  border-radius: 50%;
}
.code-header .dot.red    { background: #ff5f57; }
.code-header .dot.yellow { background: #febc2e; }
.code-header .dot.green  { background: #28c840; }
.code-title {
  margin-left: 8px;
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: monospace;
}
.code-body {
  padding: 20px;
}
.code-body pre {
  font-family: 'Courier New', monospace;
  font-size: 0.82rem;
  line-height: 1.8;
}
.code-body code .kw  { color: #c678dd; }
.code-body code .cls { color: #e5c07b; }
.code-body code .fn  { color: #61afef; }
.code-body code .str { color: #98c379; }

.floating-badge {
  position: absolute;
  background: var(--bg-2);
  border: 1px solid var(--border-light);
  border-radius: 100px;
  padding: 7px 14px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  animation: float 3s ease-in-out infinite;
}
.badge-1 { top: 10%;  left: -10%; animation-delay: 0s; }
.badge-2 { bottom: 18%; right: -8%; animation-delay: 1s; }
.badge-3 { bottom: 5%;  left: 5%;  animation-delay: 2s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

.scroll-indicator {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-dim), transparent);
  animation: scrollLine 1.5s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { opacity: 1; transform: scaleY(1) translateY(0); }
  100% { opacity: 0; transform: scaleY(0.5) translateY(20px); }
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: all var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
  border: 2px solid var(--accent);
}
.btn-primary:hover {
  background: transparent;
  color: var(--accent);
}
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border-light);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn-full { width: 100%; justify-content: center; }

/* =============================================
   ABOUT
   ============================================= */
#about { background: var(--bg-2); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}
.about-text {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 18px;
}
.about-text strong { color: var(--white); }
.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.tag {
  padding: 6px 14px;
  background: var(--bg-3);
  border: 1px solid var(--border-light);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
}
.tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* =============================================
   SKILLS
   ============================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.skill-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(20px);
}
.skill-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px var(--accent-dim);
}
.skill-icon {
  font-size: 1.6rem;
  margin-bottom: 14px;
}
.skill-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 14px;
}
.skill-card ul li {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 5px 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}
.skill-card ul li:last-child { border-bottom: none; }
.skill-card:hover ul li { color: var(--text); }

/* =============================================
   PROJECTS
   ============================================= */
#projects { background: var(--bg-2); }
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.project-card {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: all var(--transition);
  opacity: 0;
  transform: translateX(-20px);
}
.project-card.visible {
  opacity: 1;
  transform: translateX(0);
}
.project-card:hover {
  border-color: var(--accent);
  box-shadow: 0 12px 40px var(--accent-dim);
}
.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}
.project-type {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 6px;
}
.project-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
}
.project-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--border-light);
  line-height: 1;
  flex-shrink: 0;
}
.project-desc {
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
}
.project-impact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}
.impact-item {
  font-size: 0.85rem;
  color: var(--text);
}
.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.project-tech span {
  padding: 5px 12px;
  background: var(--bg);
  border: 1px solid var(--border-light);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* =============================================
   EXPERIENCE
   ============================================= */
.experience-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.exp-card {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 32px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}
.exp-card:last-child { border-bottom: none; }
.exp-left {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  padding-top: 4px;
}
.exp-date {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.5px;
  text-align: right;
  margin-bottom: 12px;
}
.exp-line {
  width: 1px;
  flex: 1;
  background: linear-gradient(to bottom, var(--accent), transparent);
  margin-right: 0;
  min-height: 60px;
}
.exp-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}
.exp-org {
  font-size: 0.88rem;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 500;
}
.exp-bullets {
  list-style: none;
  margin-bottom: 20px;
}
.exp-bullets li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 6px 0 6px 20px;
  position: relative;
  line-height: 1.6;
}
.exp-bullets li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
}
.exp-certs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.cert-badge {
  padding: 4px 12px;
  background: var(--accent-dim);
  border: 1px solid rgba(59,130,246,0.3);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
}

/* Certs Row */
.certs-row {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.certs-heading {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 24px;
}
.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.cert-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--transition);
}
.cert-card:hover { border-color: var(--accent); }
.cert-org {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.cert-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* =============================================
   WHY HIRE ME
   ============================================= */
#why-hire { background: var(--bg-2); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.why-card {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.why-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-dim), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.why-card:hover::before { opacity: 1; }
.why-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.why-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--border-light);
  margin-bottom: 12px;
  transition: color var(--transition);
  position: relative;
}
.why-card:hover .why-num { color: var(--accent); }
.why-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
  position: relative;
}
.why-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  position: relative;
}

/* =============================================
   CONTACT
   ============================================= */
#contact {
  background: var(--bg);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact-sub {
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
  margin-top: -24px;
}
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.contact-item:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}
.contact-icon {
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--accent);
  flex-shrink: 0;
}
.contact-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 2px;
}
.contact-value {
  font-size: 0.88rem;
  color: var(--text);
  font-weight: 500;
}

/* Contact Card / Form */
.contact-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.contact-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 24px;
}
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg-3);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition);
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-dim); }
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-note {
  font-size: 0.8rem;
  color: var(--accent);
  margin-top: 12px;
  text-align: center;
  min-height: 18px;
}

/* =============================================
   FOOTER
   ============================================= */
footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 28px 24px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
footer p {
  font-size: 0.82rem;
  color: var(--text-dim);
}
.footer-links {
  display: flex;
  gap: 20px;
}
.footer-links a {
  font-size: 0.82rem;
  color: var(--text-dim);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--accent); }

/* =============================================
   ANIMATIONS — Reveal on scroll
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .skills-grid  { grid-template-columns: repeat(2, 1fr); }
  .why-grid     { grid-template-columns: repeat(2, 1fr); }
  .certs-grid   { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  section { padding: 70px 0; }

  .nav-links {
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 16px 0;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav-links li a {
    display: block;
    padding: 12px 24px;
    font-size: 1rem;
  }
  .hamburger { display: flex; }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .hero-visual { display: none; }
  .hero-tagline { margin: 0 auto 36px; }
  .hero-actions { justify-content: center; }
  .hero-stats   { justify-content: center; }

  .about-grid   { grid-template-columns: 1fr; gap: 24px; }
  .skills-grid  { grid-template-columns: 1fr; }
  .why-grid     { grid-template-columns: 1fr; }
  .certs-grid   { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }

  .exp-card {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .exp-left {
    align-items: flex-start;
    flex-direction: row;
    align-items: center;
    gap: 12px;
  }
  .exp-line { display: none; }

  .project-number { display: none; }
}

@media (max-width: 480px) {
  .hero-title   { letter-spacing: -1.5px; }
  .section-title { letter-spacing: -0.5px; }
  .hero-stats   { flex-wrap: wrap; gap: 16px; }
  .stat-divider { display: none; }
}