/* ===== CSS Variables ===== */
:root {
  --primary: #0066ff;
  --primary-dark: #004ecc;
  --primary-light: #3385ff;
  --accent: #00c6ff;
  --secondary: #0a1628;
  --text: #1a1a2e;
  --text-muted: #5a6a7a;
  --bg: #ffffff;
  --bg-alt: #f0f5ff;
  --bg-card: #ffffff;
  --bg-dark: #0a1628;
  --border: #e0e8f5;
  --shadow: 0 10px 40px rgba(0, 102, 255, 0.08);
  --shadow-lg: 0 20px 60px rgba(0, 102, 255, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: all 0.3s ease;
  --whatsapp: #25d366;
}

[data-theme="dark"] {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  --accent: #22d3ee;
  --secondary: #f1f5f9;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --bg: #0f172a;
  --bg-alt: #1e293b;
  --bg-card: #1e293b;
  --bg-dark: #020617;
  --border: #334155;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: 'Inter', 'Hind Siliguri', system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 20px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: 50px; font-weight: 600; font-size: 0.95rem;
  border: 2px solid transparent; cursor: pointer; transition: var(--transition); font-family: inherit;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff;
  box-shadow: 0 8px 25px rgba(0, 102, 255, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0, 102, 255, 0.45); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-full { width: 100%; }
.btn-whatsapp {
  background: var(--whatsapp); color: #fff; margin-top: 24px;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.35);
}
.btn-whatsapp:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(37, 211, 102, 0.45); background: #20bd5a; }

.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border); transition: var(--transition);
}
[data-theme="dark"] .navbar { background: rgba(15, 23, 42, 0.9); }
.navbar.scrolled { box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06); }
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { display: flex; align-items: baseline; gap: 4px; font-weight: 800; }
.logo-z {
  background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff;
  width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: 10px; font-size: 1.3rem;
}
.logo-text { font-size: 1.4rem; color: var(--secondary); letter-spacing: -0.5px; }
.logo-sub { font-size: 0.65rem; color: var(--primary); font-weight: 600; letter-spacing: 1px; margin-left: 2px; align-self: center; }
.nav-right { display: flex; align-items: center; gap: 8px; }
.nav-links { display: flex; gap: 2px; align-items: center; }
.nav-links a { padding: 8px 12px; border-radius: 8px; font-weight: 500; font-size: 0.9rem; color: var(--text-muted); }
.nav-links a:hover, .nav-links a.active { color: var(--primary); background: var(--bg-alt); }
.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--accent)) !important;
  color: #fff !important; padding: 8px 18px !important; border-radius: 50px !important; margin-left: 6px;
}
.nav-cta:hover { opacity: 0.9; }
.theme-toggle {
  width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-alt); color: var(--text); cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: 1rem; transition: var(--transition);
}
.theme-toggle:hover { border-color: var(--primary); color: var(--primary); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2.5px; background: var(--secondary); border-radius: 2px; transition: var(--transition); }

.hero {
  min-height: 100vh; display: flex; align-items: center; padding: 110px 0 80px;
  background: linear-gradient(160deg, var(--bg-alt) 0%, var(--bg) 50%, var(--bg-alt) 100%);
  position: relative; overflow: hidden;
}
.hero-content { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 50px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px; background: var(--bg-card);
  border: 1px solid var(--border); color: var(--primary); padding: 8px 16px;
  border-radius: 50px; font-size: 0.9rem; font-weight: 600; margin-bottom: 20px; box-shadow: var(--shadow);
}
.badge-dot { width: 8px; height: 8px; background: #22c55e; border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.6; transform: scale(1.2); } }
.hero h1 { font-size: 3.2rem; font-weight: 800; line-height: 1.15; color: var(--secondary); margin-bottom: 8px; }
.hero h1 span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero h2 { font-size: 1.35rem; font-weight: 600; color: var(--primary); margin-bottom: 14px; }
.hero-tagline { font-size: 1.15rem; color: var(--text-muted); margin-bottom: 10px; }
.hero-tagline strong { color: var(--text); }
.hero-desc { font-size: 1rem; color: var(--text-muted); margin-bottom: 28px; max-width: 480px; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 36px; }
.hero-stats-mini { display: flex; gap: 32px; }
.mini-stat strong {
  display: block; font-size: 1.5rem; font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.mini-stat span { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }
.id-card-wrapper {
  position: relative; max-width: 380px; margin: 0 auto;
  filter: drop-shadow(0 25px 50px rgba(0, 102, 255, 0.2)); transition: var(--transition);
}
.id-card-wrapper:hover { transform: translateY(-8px); filter: drop-shadow(0 30px 60px rgba(0, 102, 255, 0.28)); }
.id-card-img { border-radius: 20px; width: 100%; }

.section { padding: 90px 0; }
.section-header { text-align: center; margin-bottom: 50px; }
.section-tag {
  display: inline-block; background: var(--bg-alt); color: var(--primary); padding: 6px 16px;
  border-radius: 50px; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.5px;
  text-transform: uppercase; margin-bottom: 12px; border: 1px solid var(--border);
}
.section-header h2 { font-size: 2.2rem; font-weight: 800; color: var(--secondary); margin-bottom: 8px; }
.section-desc { font-size: 1.05rem; color: var(--text-muted); }

.about-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 50px; align-items: start; }
.about-text h3 { font-size: 1.5rem; color: var(--secondary); margin-bottom: 16px; }
.about-text p { color: var(--text-muted); margin-bottom: 16px; font-size: 1.05rem; }
.about-highlights { margin-top: 24px; margin-bottom: 24px; }
.about-highlights li { display: flex; align-items: center; gap: 12px; padding: 8px 0; font-weight: 500; color: var(--text); }
.about-highlights i { color: var(--primary); font-size: 1.1rem; }
.about-contact-row { display: flex; flex-wrap: wrap; gap: 16px; }
.about-contact-row a { display: inline-flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--text-muted); font-weight: 500; }
.about-contact-row a:hover { color: var(--primary); }
.about-contact-row i { color: var(--primary); }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat-card {
  background: var(--bg-card); border-radius: var(--radius); padding: 24px 18px; text-align: center;
  border: 1px solid var(--border); transition: var(--transition); box-shadow: var(--shadow);
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.stat-icon {
  width: 44px; height: 44px; background: var(--bg-alt); border-radius: 12px;
  display: flex; align-items: center; justify-content: center; margin: 0 auto 12px; color: var(--primary); font-size: 1.1rem;
}
.stat-number {
  display: block; font-size: 1.8rem; font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; margin-top: 4px; display: block; }

.skills { background: var(--bg-alt); }
.skills-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.skill-card {
  background: var(--bg-card); border-radius: var(--radius); padding: 28px 18px; text-align: center;
  border: 1px solid var(--border); transition: var(--transition); box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
}
.skill-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.skill-icon {
  width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px; font-size: 1.5rem; color: #fff;
}
.skill-icon.laravel { background: linear-gradient(135deg, #ff2d20, #ff6b5e); }
.skill-icon.php { background: linear-gradient(135deg, #777bb3, #4f5b93); }
.skill-icon.mysql { background: linear-gradient(135deg, #00758f, #f29111); }
.skill-icon.android { background: linear-gradient(135deg, #3ddc84, #2da25c); }
.skill-icon.java { background: linear-gradient(135deg, #f89820, #5382a1); }
.skill-icon.api { background: linear-gradient(135deg, #0066ff, #00c6ff); }
.skill-icon.payment { background: linear-gradient(135deg, #00b894, #00cec9); }
.skill-icon.ussd { background: linear-gradient(135deg, #6c5ce7, #a29bfe); }
.skill-card h4 { font-size: 1.05rem; margin-bottom: 4px; color: var(--secondary); }
.skill-card p { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 12px; }
.skill-level { height: 4px; background: var(--border); border-radius: 4px; overflow: hidden; }
.skill-level span { display: block; height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 4px; }

.project-filters { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.filter-btn {
  padding: 10px 22px; border-radius: 50px; border: 1px solid var(--border); background: var(--bg-card);
  color: var(--text-muted); font-weight: 600; font-size: 0.9rem; cursor: pointer; transition: var(--transition); font-family: inherit;
}
.filter-btn:hover, .filter-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; border-color: transparent;
}
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.project-card {
  background: var(--bg-card); border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); transition: var(--transition); box-shadow: var(--shadow);
}
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.project-card.hidden { display: none; }
.project-image { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.project-img-placeholder {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 3rem; color: #fff;
}
.project-img-placeholder.web { background: linear-gradient(135deg, #0066ff, #00c6ff); }
.project-img-placeholder.android { background: linear-gradient(135deg, #3ddc84, #2da25c); }
.project-img-placeholder.api { background: linear-gradient(135deg, #6c5ce7, #a29bfe); }
.project-overlay {
  position: absolute; bottom: 0; left: 0; right: 0; padding: 12px 16px;
  background: linear-gradient(transparent, rgba(0,0,0,0.7)); opacity: 0; transition: var(--transition);
}
.project-card:hover .project-overlay { opacity: 1; }
.project-tech { color: #fff; font-size: 0.8rem; font-weight: 500; }
.project-body { padding: 22px; }
.project-tags { display: flex; gap: 6px; margin-bottom: 10px; }
.project-tags span {
  background: var(--bg-alt); color: var(--primary); padding: 3px 10px; border-radius: 50px; font-size: 0.75rem; font-weight: 600;
}
.project-body h3 { font-size: 1.15rem; color: var(--secondary); margin-bottom: 8px; }
.project-body > p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 14px; line-height: 1.55; }
.project-meta { display: flex; flex-wrap: wrap; gap: 12px; }
.project-meta span { font-size: 0.8rem; color: var(--text-muted); display: flex; align-items: center; gap: 4px; }
.project-meta i { color: #22c55e; font-size: 0.75rem; }
.projects-note, .testimonials-note {
  text-align: center; margin-top: 32px; font-size: 0.9rem; color: var(--text-muted);
  background: var(--bg-alt); padding: 14px 20px; border-radius: var(--radius-sm); border: 1px dashed var(--border);
}

.services { background: var(--bg-alt); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  background: var(--bg-card); border-radius: var(--radius); padding: 36px 28px;
  border: 1px solid var(--border); transition: var(--transition); position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent)); transform: scaleX(0); transition: var(--transition);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 56px; height: 56px; background: var(--bg-alt); border-radius: 14px;
  display: flex; align-items: center; justify-content: center; font-size: 1.4rem; color: var(--primary); margin-bottom: 20px;
}
.service-card h3 { font-size: 1.25rem; margin-bottom: 12px; color: var(--secondary); }
.service-card > p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 18px; }
.service-card ul li { padding: 6px 0; font-size: 0.9rem; color: var(--text); position: relative; padding-left: 18px; }
.service-card ul li::before { content: '▸'; position: absolute; left: 0; color: var(--primary); font-weight: bold; }

.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step {
  text-align: center; padding: 32px 20px; background: var(--bg-card); border-radius: var(--radius);
  border: 1px solid var(--border); position: relative; transition: var(--transition);
}
.process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.process-num {
  font-size: 2.5rem; font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  opacity: 0.25; position: absolute; top: 12px; right: 16px;
}
.process-icon {
  width: 56px; height: 56px; background: var(--bg-alt); border-radius: 14px;
  display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--primary); margin: 0 auto 16px;
}
.process-step h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--secondary); }
.process-step p { font-size: 0.9rem; color: var(--text-muted); }

.awards { background: var(--bg-alt); }
.awards-intro { text-align: center; max-width: 600px; margin: 0 auto 40px; color: var(--text-muted); font-size: 1.05rem; }
.awards-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.award-card {
  background: var(--bg-card); border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); box-shadow: var(--shadow); transition: var(--transition);
  display: flex; flex-direction: column;
}
.award-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.award-image { position: relative; overflow: hidden; aspect-ratio: 16 / 10; background: #e8eef5; }
[data-theme="dark"] .award-image { background: #1e293b; }
.award-image img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); cursor: pointer; }
.award-card:hover .award-image img { transform: scale(1.03); }
.award-zoom {
  position: absolute; bottom: 12px; right: 12px; width: 40px; height: 40px; border-radius: 50%;
  background: rgba(0, 0, 0, 0.6); color: #fff; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center; opacity: 0; transition: var(--transition);
}
.award-card:hover .award-zoom { opacity: 1; }
.award-zoom:hover { background: var(--primary); }
.award-info { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.award-info h3 { font-size: 1.15rem; color: var(--secondary); margin-bottom: 6px; }
.award-org { font-size: 0.9rem; color: var(--primary); font-weight: 600; margin-bottom: 10px; }
.award-desc { font-size: 0.9rem; color: var(--text-muted); flex: 1; margin-bottom: 14px; }
.award-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: linear-gradient(135deg, #fff8e1, #ffecb3); color: #b8860b;
  padding: 6px 14px; border-radius: 50px; font-size: 0.8rem; font-weight: 600; width: fit-content;
}
[data-theme="dark"] .award-badge { background: linear-gradient(135deg, #422006, #78350f); color: #fbbf24; }
.award-placeholder {
  border: 2px dashed var(--border); background: transparent; box-shadow: none;
  min-height: 280px; display: flex; align-items: center; justify-content: center;
}
.award-placeholder:hover { border-color: var(--primary-light); transform: none; box-shadow: none; }
.award-placeholder-content { text-align: center; padding: 40px 30px; color: var(--text-muted); }
.award-placeholder-content i { font-size: 2.5rem; color: var(--primary-light); margin-bottom: 12px; }
.award-placeholder-content h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--secondary); }
.award-placeholder-content p { font-size: 0.9rem; max-width: 280px; margin: 0 auto; }

.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card {
  background: var(--bg-card); border-radius: var(--radius); padding: 28px;
  border: 1px solid var(--border); box-shadow: var(--shadow); transition: var(--transition);
  display: flex; flex-direction: column;
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.testimonial-stars { color: #fbbf24; margin-bottom: 14px; font-size: 0.9rem; letter-spacing: 2px; }
.testimonial-text { font-size: 0.95rem; color: var(--text-muted); line-height: 1.65; flex: 1; margin-bottom: 20px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1.1rem; flex-shrink: 0;
}
.testimonial-author strong { display: block; font-size: 0.95rem; color: var(--secondary); }
.testimonial-author span { font-size: 0.8rem; color: var(--text-muted); }

.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 50px; align-items: start; }
.contact-info h3 { font-size: 1.4rem; margin-bottom: 12px; color: var(--secondary); }
.contact-info > p { color: var(--text-muted); margin-bottom: 28px; }
.contact-items { display: flex; flex-direction: column; gap: 14px; }
.contact-item {
  display: flex; align-items: center; gap: 16px; padding: 16px 20px;
  background: var(--bg-alt); border-radius: var(--radius-sm); border: 1px solid var(--border); transition: var(--transition);
}
.contact-item:hover { border-color: var(--primary); background: var(--bg-card); }
.contact-item i {
  width: 44px; height: 44px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff;
  border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0;
}
.contact-item strong { display: block; font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
.contact-item span { font-weight: 600; color: var(--secondary); }
.contact-form-wrapper { background: var(--bg-alt); border-radius: var(--radius); padding: 36px; border: 1px solid var(--border); }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 6px; color: var(--secondary); }
.form-group input, .form-group textarea {
  width: 100%; padding: 14px 16px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 0.95rem; background: var(--bg-card); transition: var(--transition); color: var(--text);
}
.form-group input:focus, .form-group textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.12);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 0.8rem; color: var(--text-muted); margin-top: 12px; text-align: center; }

.footer { background: var(--bg-dark); color: #94a3b8; padding: 50px 0 30px; }
.footer-content { display: flex; flex-direction: column; gap: 24px; }
.footer-brand { text-align: center; }
.footer-logo { display: inline-flex; align-items: baseline; gap: 4px; margin-bottom: 10px; }
.footer-logo .logo-z { width: 32px; height: 32px; font-size: 1.1rem; }
.footer-logo .logo-text { color: #fff; font-size: 1.2rem; }
.footer-logo .logo-sub { color: var(--accent); }
.footer-brand > p { font-size: 0.95rem; margin-bottom: 4px; }
.footer-services { color: var(--accent) !important; font-weight: 500; }
.footer-links { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; }
.footer-links a { color: #94a3b8; font-size: 0.9rem; font-weight: 500; }
.footer-links a:hover { color: #fff; }
.footer-bottom { text-align: center; padding-top: 20px; border-top: 1px solid #1e293b; font-size: 0.85rem; }

.whatsapp-float {
  position: fixed; bottom: 28px; right: 28px; width: 58px; height: 58px;
  background: var(--whatsapp); color: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 1.8rem;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45); z-index: 999;
  transition: var(--transition); animation: whatsapp-pulse 2.5s infinite;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 8px 30px rgba(37, 211, 102, 0.55); }
@keyframes whatsapp-pulse {
  0%, 100% { box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45); }
  50% { box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45), 0 0 0 12px rgba(37, 211, 102, 0.15); }
}

.lightbox {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.92); z-index: 2000;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: var(--transition); padding: 20px;
}
.lightbox.active { opacity: 1; visibility: visible; }
.lightbox img { max-width: 95%; max-height: 90vh; border-radius: 12px; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5); }
.lightbox-close {
  position: absolute; top: 20px; right: 28px; background: none; border: none;
  color: #fff; font-size: 2.5rem; cursor: pointer; line-height: 1; opacity: 0.8; transition: var(--transition);
}
.lightbox-close:hover { opacity: 1; }

@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 992px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-text { order: 2; }
  .hero-image { order: 1; }
  .id-card-wrapper { max-width: 300px; }
  .hero h1 { font-size: 2.5rem; }
  .hero-buttons { justify-content: center; }
  .hero-stats-mini { justify-content: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .about-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .awards-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .testimonials-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed; top: 70px; left: 0; right: 0; background: var(--bg); flex-direction: column;
    padding: 16px 20px; gap: 4px; border-bottom: 1px solid var(--border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08); transform: translateY(-130%);
    opacity: 0; visibility: hidden; transition: var(--transition);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-links a { padding: 12px 16px; }
  .nav-cta { margin-left: 0 !important; text-align: center; }
  .hero h1 { font-size: 2rem; }
  .section-header h2 { font-size: 1.8rem; }
  .projects-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .whatsapp-float { bottom: 20px; right: 20px; width: 52px; height: 52px; font-size: 1.6rem; }
}
@media (max-width: 480px) {
  .skills-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; }
  .btn { width: 100%; }
  .contact-form-wrapper { padding: 24px 18px; }
  .hero-stats-mini { gap: 20px; }
}