/* =========================================
   BANSAL CODERS - Global Stylesheet
   ========================================= */

/* ---------- CSS Variables ---------- */
:root {
  --bg-primary: #050b18;
  --bg-secondary: #0a1628;
  --bg-card: #0f1e35;
  --bg-card-hover: #152540;
  --primary: #4f6ef7;
  --primary-dark: #3b55d4;
  --accent: #06c8f0;
  --gradient: linear-gradient(135deg, #4f6ef7 0%, #06c8f0 100%);
  --gradient-text: linear-gradient(135deg, #4f6ef7, #06c8f0);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: rgba(255,255,255,0.07);
  --border-light: rgba(79,110,247,0.3);
  --shadow: 0 20px 60px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px rgba(79,110,247,0.2);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: all 0.3s ease;
  --font-main: 'Inter', 'Segoe UI', sans-serif;
  --nav-height: 80px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; outline: none; font-family: var(--font-main); }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ---------- Typography Helpers ---------- */
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(79,110,247,0.12);
  border: 1px solid var(--border-light);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 18px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 18px;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.8;
}

.section-header { text-align: center; margin-bottom: 60px; }
.section-header .section-subtitle { margin: 0 auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 24px rgba(79,110,247,0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(79,110,247,0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

.btn-outline:hover {
  background: rgba(79,110,247,0.1);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

/* ---------- Container ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Section ---------- */
section { padding: 100px 0; }

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  transition: var(--transition);
}

.card:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
  background: var(--bg-card-hover);
}

/* ---------- NAVIGATION ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: var(--transition);
  padding: 0;
}

.navbar.scrolled {
  background: rgba(5, 11, 24, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: var(--gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 900;
  color: white;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta { margin-left: 8px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  width: 26px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.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); }

/* ---------- Mobile Menu ---------- */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  width: 100%;
  background: rgba(5, 11, 24, 0.98);
  backdrop-filter: blur(20px);
  padding: 24px;
  border-bottom: 1px solid var(--border);
  z-index: 999;
  flex-direction: column;
  gap: 8px;
  transform: translateY(-10px);
  opacity: 0;
  transition: var(--transition);
}

.mobile-menu.open {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu a {
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 1rem;
  transition: var(--transition);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  background: rgba(79,110,247,0.1);
  color: var(--text-primary);
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.4fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand .nav-logo { margin-bottom: 16px; }

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 280px;
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: var(--transition);
}

.social-link:hover {
  background: var(--gradient);
  border-color: transparent;
  color: white;
  transform: translateY(-2px);
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-contact-item span:first-child {
  font-size: 1rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.footer-contact-item a,
.footer-contact-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-contact-item a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: var(--transition);
}

.footer-bottom-links a:hover { color: var(--accent); }

/* ---------- ANIMATIONS ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-14px); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(79,110,247,0.4); }
  50%       { box-shadow: 0 0 0 20px rgba(79,110,247,0); }
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes blob {
  0%, 100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
  50%       { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
}

.animate-fade-up   { animation: fadeInUp 0.7s ease forwards; }
.animate-fade-left { animation: fadeInLeft 0.7s ease forwards; }
.animate-float     { animation: float 6s ease-in-out infinite; }

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger children */
.stagger-children > * { opacity: 0; transform: translateY(30px); transition: opacity 0.5s ease, transform 0.5s ease; }
.stagger-children.visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0.1s; }
.stagger-children.visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.2s; }
.stagger-children.visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.3s; }
.stagger-children.visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.4s; }
.stagger-children.visible > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.5s; }
.stagger-children.visible > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.6s; }

/* ---------- Page Header (inner pages) ---------- */
.page-header {
  padding: 160px 0 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(79,110,247,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.page-header h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
}

.page-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Divider ---------- */
.divider {
  width: 60px;
  height: 4px;
  background: var(--gradient);
  border-radius: 2px;
  margin: 20px auto 0;
}

/* ---------- Badge ---------- */
.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(79,110,247,0.15);
  border: 1px solid var(--border-light);
  color: var(--primary);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --nav-height: 68px; }
  section { padding: 70px 0; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-bottom-links { flex-wrap: wrap; justify-content: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section-title { font-size: 1.8rem; }
  .btn { padding: 12px 24px; font-size: 0.88rem; }
}

/* =========================================
   PRODUCTION ADDITIONS
   ========================================= */

/* ---------- Skip Link (Accessibility) ---------- */
.skip-link {
  position: fixed;
  top: -100px;
  left: 24px;
  z-index: 9999;
  background: var(--primary);
  color: #fff;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  transition: top 0.2s ease;
  text-decoration: none;
}
.skip-link:focus { top: 16px; outline: 3px solid var(--accent); outline-offset: 2px; }

/* ---------- Focus Rings ---------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}
button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ---------- Page Loader ---------- */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.page-loader.fade-out { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-logo {
  width: 64px; height: 64px;
  background: var(--gradient);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 900;
  color: white;
  animation: pulse-glow 1.5s ease-in-out infinite;
}
.loader-bar {
  width: 180px; height: 3px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  overflow: hidden;
}
.loader-fill {
  height: 100%;
  background: var(--gradient);
  border-radius: 2px;
  animation: loader-progress 1.8s ease-in-out forwards;
}
@keyframes loader-progress {
  from { width: 0%; }
  60%  { width: 75%; }
  to   { width: 100%; }
}

/* ---------- Page Transitions ---------- */
body { opacity: 1; transition: opacity 0.22s ease; }
body.page-exit { opacity: 0; }
body.page-enter { animation: fadeInUp 0.4s ease both; }

/* ---------- Typed Text Cursor ---------- */
.typed-text::after {
  content: '|';
  display: inline-block;
  color: var(--accent);
  animation: blink 0.75s step-end infinite;
  margin-left: 2px;
  font-weight: 300;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ---------- Floating Action Buttons ---------- */
.fab-group {
  position: fixed;
  bottom: 90px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 900;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}
.fab-group.visible { opacity: 1; transform: translateX(0); pointer-events: all; }

.fab {
  width: 50px; height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: var(--transition);
  position: relative;
}
.fab:hover { transform: scale(1.12) translateY(-2px); }
.fab-email { background: linear-gradient(135deg, #4f6ef7, #06c8f0); }
.fab-quote { background: linear-gradient(135deg, #10b981, #059669); }

/* Tooltip */
.fab::before {
  content: attr(title);
  position: absolute;
  right: 60px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.fab:hover::before { opacity: 1; }

/* ---------- Back to Top ---------- */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--gradient);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  box-shadow: 0 4px 20px rgba(79,110,247,0.35);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
  cursor: pointer;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: all; }
.back-to-top:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(79,110,247,0.5); }

/* ---------- Commitment Section (Home) ---------- */
.commitment-section { background: var(--bg-secondary); }
.commitment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.commitment-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.commitment-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.commitment-card:hover {
  border-color: var(--border-light);
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
  background: var(--bg-card-hover);
}
.commitment-card:hover::before { transform: scaleX(1); }
.comm-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
  display: block;
}
.commitment-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.commitment-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- Open For Work Section (Portfolio) ---------- */
.open-for-work-section { background: var(--bg-primary); padding: 60px 0; }
.ofw-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  background: linear-gradient(135deg, rgba(79,110,247,0.1), rgba(6,200,240,0.06));
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 40px 48px;
  flex-wrap: wrap;
}
.ofw-icon { font-size: 3rem; flex-shrink: 0; }
.ofw-text { flex: 1; min-width: 200px; }
.ofw-text h3 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.ofw-text p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- Spinner ---------- */
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin-slow 0.7s linear infinite;
}

/* ---------- Responsive for new elements ---------- */
@media (max-width: 1024px) {
  .commitment-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .commitment-grid { grid-template-columns: 1fr; }
  .fab-group { bottom: 80px; right: 16px; }
  .back-to-top { bottom: 16px; right: 16px; }
  .ofw-inner { flex-direction: column; text-align: center; padding: 32px 24px; }
}
@media (max-width: 480px) {
  .commitment-grid { grid-template-columns: 1fr; }
}