/* ── RESET & ROOT ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0f1e;
  --bg2: #111827;
  --card: #1a2236;
  --accent: #00c8ff;
  --accent2: #7c3aed;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --border: #1e293b;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  cursor: none;
  overflow-x: hidden;
}

/* ── PRELOADER ── */
#preloader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
#preloader.hidden { opacity: 0; visibility: hidden; }
.preloader-inner { text-align: center; }
.preloader-logo {
  font-size: 2rem; font-weight: 800;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 1.5rem;
  animation: pulse 1s infinite alternate;
}
@keyframes pulse { from { opacity: 0.5; } to { opacity: 1; } }
.preloader-bar {
  width: 200px; height: 3px;
  background: var(--border); border-radius: 999px; overflow: hidden;
}
.preloader-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 999px;
  animation: fillBar 1.5s ease forwards;
}
@keyframes fillBar { from { width: 0; } to { width: 100%; } }

/* ── CUSTOM CURSOR ── */
#cursor {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  position: fixed; pointer-events: none; z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.1s;
}
#cursor-follower {
  width: 32px; height: 32px;
  border: 1.5px solid rgba(0,200,255,0.4);
  border-radius: 50%;
  position: fixed; pointer-events: none; z-index: 9997;
  transform: translate(-50%, -50%);
  transition: left 0.12s ease, top 0.12s ease;
}
#cursor.clicked { transform: translate(-50%, -50%) scale(2); }

/* ── NAV ── */
#navbar {
  position: fixed; top: 0; width: 100%; z-index: 999;
  background: rgba(10,15,30,0.0);
  backdrop-filter: blur(0px);
  border-bottom: 1px solid transparent;
  padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
  transition: background 0.4s, border-color 0.4s, backdrop-filter 0.4s;
}
#navbar.scrolled {
  background: rgba(10,15,30,0.95);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
}
.nav-brand {
  font-weight: 800; font-size: 1.1rem;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  color: var(--muted); text-decoration: none; font-size: 0.9rem; font-weight: 500;
  transition: color 0.2s; position: relative; padding-bottom: 4px;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width 0.3s ease;
  border-radius: 2px;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--accent); }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: 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); }

/* ── HERO ── */
#hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  padding: 6rem 2rem 4rem;
  position: relative; overflow: hidden;
  background: var(--bg);
}
#particles-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: rgba(0,200,255,0.1);
  border: 1px solid rgba(0,200,255,0.3);
  color: var(--accent);
  font-size: 0.8rem; font-weight: 600; letter-spacing: 1px;
  padding: 0.35rem 1rem; border-radius: 999px;
  margin-bottom: 1.5rem; text-transform: uppercase;
}
.blink-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #22c55e;
  animation: blink 1.5s infinite;
  display: inline-block;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0.2; } }

#hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800; line-height: 1.1;
  margin-bottom: 1rem; min-height: 1.2em;
}
.typed-name {
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.typed-cursor {
  display: inline-block;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  animation: cursorBlink 0.7s infinite;
  font-weight: 300;
}
@keyframes cursorBlink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

#hero p {
  font-size: 1.15rem; color: var(--muted);
  max-width: 580px; margin: 0 auto 2.5rem;
}
#hero p strong { color: var(--text); }
.hero-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.scroll-indicator {
  margin-top: 4rem; animation: bounce 2s infinite;
  color: var(--muted); font-size: 1.5rem;
}
@keyframes bounce {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ── BUTTONS ── */
.btn {
  padding: 0.75rem 2rem; border-radius: 8px;
  font-weight: 600; font-size: 0.95rem;
  text-decoration: none; cursor: none; border: none;
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
  display: inline-flex; align-items: center; gap: 0.5rem;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  box-shadow: 0 4px 24px rgba(0,200,255,0.25);
}
.btn-primary:hover { box-shadow: 0 8px 32px rgba(0,200,255,0.4); }
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--accent);
  color: var(--accent);
}
.btn-sm { padding: 0.5rem 1.25rem; font-size: 0.85rem; border-radius: 6px; }

/* ── SECTIONS ── */
section { padding: 5rem 2rem; }
.section-label {
  font-size: 0.75rem; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 0.75rem;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800; margin-bottom: 1rem;
}
.section-sub { color: var(--muted); max-width: 560px; margin-bottom: 3rem; }
.section-header { text-align: center; max-width: 600px; margin: 0 auto 3rem; }
.container { max-width: 1100px; margin: 0 auto; }

/* ── ABOUT ── */
#about { background: var(--bg2); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}
.about-text p { color: var(--muted); margin-bottom: 1rem; }
.skills { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.5rem; }
.skill-tag {
  background: rgba(0,200,255,0.08);
  border: 1px solid rgba(0,200,255,0.2);
  color: var(--accent);
  padding: 0.35rem 0.9rem; border-radius: 999px;
  font-size: 0.82rem; font-weight: 500;
  transition: background 0.2s, transform 0.2s;
  cursor: default;
}
.skill-tag:hover {
  background: rgba(0,200,255,0.18);
  transform: translateY(-2px);
}
.stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; margin-top: 2rem; }
.stat-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.5rem; text-align: center;
  transition: transform 0.3s, border-color 0.3s;
}
.stat-card:hover { transform: translateY(-4px); border-color: rgba(0,200,255,0.3); }
.stat-card .num {
  font-size: 2rem; font-weight: 800;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-card .label { color: var(--muted); font-size: 0.82rem; margin-top: 0.25rem; }

/* ── SERVICES ── */
#services { background: var(--bg); }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); gap: 1.5rem; }
.service-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 2rem;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0,200,255,0.04), rgba(124,58,237,0.04));
  opacity: 0; transition: opacity 0.3s;
}
.service-card:hover::before { opacity: 1; }
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,200,255,0.4);
  box-shadow: 0 12px 40px rgba(0,200,255,0.08);
}
.service-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(0,200,255,0.15), rgba(124,58,237,0.15));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 1.25rem;
  transition: transform 0.3s;
}
.service-card:hover .service-icon { transform: scale(1.1) rotate(5deg); }
.service-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.6rem; }
.service-card p { color: var(--muted); font-size: 0.9rem; }

/* ── PROJECTS ── */
#projects { background: var(--bg2); }
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px,1fr)); gap: 1.5rem; }
.project-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex; flex-direction: column; /* ← makes card a flex column */
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,200,255,0.1);
}
.project-thumb {
  height: 180px;
  background: linear-gradient(135deg, #1a2236, #0f172a);
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; color: var(--accent);
  border-bottom: 1px solid var(--border);
  transition: font-size 0.3s;
  flex-shrink: 0;
}
.project-card:hover .project-thumb { font-size: 3.6rem; }
.project-body {
  padding: 1.5rem;
  display: flex; flex-direction: column;
  flex: 1; /* ← stretches to fill remaining card height */
}
.project-body h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.5rem; }
.project-body p { color: var(--muted); font-size: 0.88rem; margin-bottom: 1rem; }
.tech-tags {
  display: flex; flex-wrap: wrap; gap: 0.4rem;
  margin-bottom: 1.25rem;
  flex: 1; /* ← pushes button to the bottom */
  align-content: flex-start;
}
.tech-tag {
  background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.25);
  color: #a78bfa;
  padding: 0.2rem 0.7rem; border-radius: 999px;
  font-size: 0.75rem; font-weight: 500;
  height: fit-content;
}
.project-body .btn {
  width: 100%;
  justify-content: center;
  margin-top: auto; /* ← sticks button to bottom */
}

/* ── WHY ME ── */
#why { background: var(--bg); }
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 1.5rem; margin-bottom: 4rem; }
.why-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 1.75rem; text-align: center;
  transition: border-color 0.3s, transform 0.3s;
}
.why-card:hover { border-color: rgba(0,200,255,0.4); transform: translateY(-4px); }
.why-card .icon { font-size: 2rem; margin-bottom: 1rem; transition: transform 0.3s; }
.why-card:hover .icon { transform: scale(1.2); }
.why-card h3 { font-weight: 700; margin-bottom: 0.4rem; }
.why-card p { color: var(--muted); font-size: 0.88rem; }

.testimonials { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); gap: 1.5rem; }
.testimonial {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 1.75rem;
  transition: border-color 0.3s, transform 0.3s;
}
.testimonial:hover { border-color: rgba(0,200,255,0.3); transform: translateY(-4px); }
.testimonial .stars { color: #fbbf24; margin-bottom: 0.75rem; font-size: 0.9rem; }
.testimonial p { color: var(--muted); font-size: 0.9rem; font-style: italic; margin-bottom: 1rem; }
.testimonial-author { display: flex; align-items: center; gap: 0.75rem; }
.avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.9rem; color: #fff;
  flex-shrink: 0;
}
.author-info .name { font-weight: 600; font-size: 0.9rem; }
.author-info .role { color: var(--muted); font-size: 0.78rem; }

/* ── CONTACT ── */
#contact { background: var(--bg2); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 4rem; align-items: start; }
.contact-info p { color: var(--muted); margin-bottom: 2rem; font-size: 0.95rem; }
.contact-links { display: flex; flex-direction: column; gap: 1rem; }
.contact-link {
  display: flex; align-items: center; gap: 0.75rem;
  color: var(--text); text-decoration: none;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 10px; padding: 0.85rem 1.25rem;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
}
.contact-link:hover { border-color: var(--accent); color: var(--accent); transform: translateX(4px); }
.contact-link i { color: var(--accent); width: 18px; }

/* Floating label inputs */
form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.input-group { position: relative; }
.input-group input,
.input-group textarea {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 8px; padding: 1.25rem 1rem 0.5rem;
  color: var(--text); font-family: inherit; font-size: 0.9rem;
  width: 100%; outline: none; transition: border-color 0.2s;
}
.input-group textarea { resize: vertical; min-height: 140px; }
.input-group label {
  position: absolute; left: 1rem; top: 50%; transform: translateY(-50%);
  color: var(--muted); font-size: 0.9rem; pointer-events: none;
  transition: top 0.2s, font-size 0.2s, color 0.2s;
}
.input-group textarea ~ label { top: 1rem; transform: none; }
.input-group input:focus ~ label,
.input-group input:not(:placeholder-shown) ~ label,
.input-group textarea:focus ~ label,
.input-group textarea:not(:placeholder-shown) ~ label {
  top: 0.45rem; font-size: 0.7rem; color: var(--accent); transform: none;
}
.input-group input:focus,
.input-group textarea:focus { border-color: var(--accent); }

/* ── BACK TO TOP ── */
#backToTop {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 998;
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; border: none; cursor: none;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.3s, transform 0.3s;
  box-shadow: 0 4px 16px rgba(0,200,255,0.3);
}
#backToTop.visible { opacity: 1; transform: translateY(0); }
#backToTop:hover { transform: translateY(-3px); }

/* ── FOOTER ── */
footer {
  background: var(--bg); border-top: 1px solid var(--border);
  padding: 2rem; text-align: center; color: var(--muted); font-size: 0.85rem;
}
footer a { color: var(--accent); text-decoration: none; }

/* ── FADE IN ── */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  body { cursor: auto; }
  #cursor, #cursor-follower { display: none; }
  .btn { cursor: pointer; }
  #backToTop { cursor: pointer; }
  .nav-links {
    display: none; flex-direction: column;
    position: absolute; top: 64px; left: 0; width: 100%;
    background: var(--bg2); padding: 1.5rem 2rem; gap: 1.25rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .form-row { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
}

/* ── PROJECT FILTERS ── */
.project-filters {
  display: flex; flex-wrap: wrap; gap: 0.75rem;
  justify-content: center; margin-bottom: 2.5rem;
}
.filter-btn {
  padding: 0.5rem 1.5rem; border-radius: 999px;
  background: var(--card); border: 1px solid var(--border);
  color: var(--muted); font-size: 0.85rem; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
}
.filter-btn:hover, .filter-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-color: transparent; color: #fff;
}

/* Hide filtered cards */
.project-card.hidden {
  display: none;
}