/* =============================================
   UMESH BALANI – PERSONAL WEBSITE STYLES
   Dark Theme · Colorful Gradients · Animated
   ============================================= */

:root {
  --bg:       #0a0a0f;
  --bg2:      #12121a;
  --bg3:      #1a1a28;
  --card:     #1e1e2e;
  --border:   #2a2a3e;
  --text:     #e8e8f0;
  --muted:    #8888aa;
  --accent1:  #667eea;
  --accent2:  #764ba2;
  --accent3:  #f093fb;
  --accent4:  #4facfe;
  --green:    #43e97b;
  --yellow:   #f9ca24;
  --navbar-h: 72px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.gradient-text {
  background: linear-gradient(135deg, var(--accent1), var(--accent3), var(--accent4));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── NAVBAR ── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--navbar-h);
  z-index: 1000;
  background: rgba(10,10,15,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s;
}
.navbar.scrolled { box-shadow: 0 4px 24px rgba(102,126,234,.15); }
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 100%; padding: 0 32px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 700; }
.logo-icon { color: var(--accent1); font-size: 1.4rem; }
.accent { color: var(--accent3); }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { font-size: .9rem; color: var(--muted); transition: color .2s; }
.nav-links a:hover { color: #fff; }
.nav-cta {
  background: linear-gradient(135deg, var(--accent1), var(--accent2));
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: 600;
}
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; }

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--navbar-h) 32px 0;
  background: radial-gradient(ellipse 80% 60% at 70% 40%, rgba(102,126,234,.18) 0%, transparent 60%),
              radial-gradient(ellipse 50% 40% at 20% 80%, rgba(240,147,251,.12) 0%, transparent 55%),
              var(--bg);
  position: relative;
  overflow: hidden;
}
.hero-content { max-width: 600px; z-index: 1; }
.hero-badge {
  display: inline-block;
  background: rgba(102,126,234,.15);
  border: 1px solid rgba(102,126,234,.3);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: .85rem;
  color: var(--accent1);
  margin-bottom: 20px;
  animation: slideDown .8s ease-out;
}
.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  animation: slideDown .9s ease-out;
}
.hero-title .gradient-text { display: block; }
.hero-subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 28px;
  animation: slideUp .9s ease-out;
}
.hero-subtitle strong { color: var(--accent4); }
.hero-subtitle em { color: var(--accent3); font-style: normal; }
.hero-stats { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 32px; animation: slideUp 1s ease-out; }
.stat-pill {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: .85rem;
  display: flex; align-items: center; gap: 8px;
}
.stat-pill i { color: var(--accent3); }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; animation: slideUp 1.1s ease-out; }
.hero-visual {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  opacity: .4;
}
.hero-circle {
  width: 420px; height: 420px;
  border: 2px solid rgba(102,126,234,.2);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  animation: spin 30s linear infinite;
}
.circle-inner { display: flex; align-items: center; justify-content: center; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-size: .95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all .25s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent1), var(--accent2));
  color: #fff;
  box-shadow: 0 4px 20px rgba(102,126,234,.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(102,126,234,.5); }
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent1); color: var(--accent1); }
.btn-full { width: 100%; justify-content: center; }

/* ── SECTIONS ── */
.section { padding: 100px 0; }
.section-label {
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent3);
  font-weight: 600;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.2;
}
.section-desc { color: var(--muted); font-size: 1.05rem; max-width: 640px; margin-bottom: 48px; }

/* ── ABOUT ── */
.about { background: var(--bg2); }
.about-grid { display: grid; grid-template-columns: 1fr 340px; gap: 60px; align-items: start; }
.about-text p { color: var(--muted); margin-bottom: 16px; font-size: 1.02rem; }
.about-text strong { color: var(--text); }
.about-text em { color: var(--accent3); font-style: normal; }
.about-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.tag {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: .83rem;
  color: var(--text);
}
.profile-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
  position: sticky;
  top: 90px;
}
.profile-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent1), var(--accent3));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  font-weight: 800;
  margin: 0 auto 16px;
}
.profile-card h3 { font-size: 1.3rem; margin-bottom: 4px; }
.profile-role { color: var(--accent4); font-size: .9rem; margin-bottom: 16px; }
.profile-company, .profile-location, .profile-exp {
  color: var(--muted);
  font-size: .88rem;
  margin-bottom: 8px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.profile-company i { color: var(--accent1); }
.profile-location i { color: var(--accent3); }
.profile-exp i { color: var(--green); }
.profile-socials { display: flex; justify-content: center; gap: 16px; margin-top: 16px; }
.profile-socials a {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--bg3);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
  font-size: 1rem;
  transition: all .2s;
}
.profile-socials a:hover { border-color: var(--accent1); color: var(--accent1); }

/* ── ROTOMAG TIMELINE ── */
.rotomag { background: var(--bg); }
.company-story { position: relative; padding-left: 32px; margin-bottom: 48px; }
.company-story::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent1), var(--accent3), var(--accent4));
}
.timeline-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 20px;
  margin-bottom: 36px;
  position: relative;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -38px;
  top: 6px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent1);
  border: 2px solid var(--bg);
  box-shadow: 0 0 10px var(--accent1);
}
.timeline-year {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent3);
  padding-top: 2px;
}
.timeline-content h3 { font-size: 1.05rem; margin-bottom: 6px; }
.timeline-content p { color: var(--muted); font-size: .93rem; }
.company-mission {
  background: var(--card);
  border-left: 4px solid var(--accent1);
  border-radius: 0 16px 16px 0;
  padding: 24px 28px;
}
.company-mission blockquote { font-size: 1.15rem; font-style: italic; color: var(--text); margin-bottom: 8px; }
.company-mission cite { color: var(--muted); font-size: .85rem; }

/* ── PRODUCTS ── */
.products { background: var(--bg2); }
.products-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.product-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 24px;
  transition: transform .25s, box-shadow .25s;
}
.product-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(0,0,0,.4); }
.product-icon {
  width: 60px; height: 60px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  color: #fff;
  margin-bottom: 20px;
}
.product-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.product-card p { color: var(--muted); font-size: .9rem; margin-bottom: 16px; }
.product-specs li { font-size: .83rem; color: var(--muted); padding: 4px 0; padding-left: 16px; position: relative; }
.product-specs li::before { content: '✓'; position: absolute; left: 0; color: var(--green); font-weight: 700; }

/* ── SOLAR ── */
.solar {
  background: linear-gradient(135deg, rgba(79,172,254,.06) 0%, rgba(67,233,123,.06) 100%), var(--bg);
  border-top: 1px solid rgba(79,172,254,.12);
  border-bottom: 1px solid rgba(79,172,254,.12);
}
.solar-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; margin-bottom: 48px; }
.solar-feature {
  background: var(--card);
  border: 1px solid rgba(79,172,254,.15);
  border-radius: 16px;
  padding: 28px 20px;
  text-align: center;
}
.solar-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent4), var(--green));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  margin: 0 auto 16px;
}
.solar-feature h3 { font-size: 1rem; margin-bottom: 8px; }
.solar-feature p { color: var(--muted); font-size: .88rem; }
.solar-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}
.solar-stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  text-align: center;
}
.big-num {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent4), var(--green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: .83rem; color: var(--muted); display: block; margin-top: 4px; }
.solar-cta { text-align: center; }
.solar-cta p { color: var(--muted); margin-bottom: 20px; font-size: .95rem; }

/* ── IMPACT ── */
.impact { background: var(--bg2); }
.impact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.impact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 24px;
  transition: transform .25s;
}
.impact-card:hover { transform: translateY(-4px); }
.impact-num { font-size: 2.6rem; font-weight: 900; margin-bottom: 8px; }
.impact-label { font-weight: 700; font-size: 1rem; margin-bottom: 8px; }
.impact-desc { color: var(--muted); font-size: .88rem; }

/* ── VISION ── */
.vision { background: var(--bg); }
.vision-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.vision-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 24px;
  transition: border-color .25s;
}
.vision-card:hover { border-color: var(--accent1); }
.vision-num {
  font-size: 2rem;
  font-weight: 900;
  color: rgba(102,126,234,.2);
  margin-bottom: 12px;
}
.vision-card h3 { font-size: 1rem; margin-bottom: 10px; }
.vision-card p { color: var(--muted); font-size: .9rem; }

/* ── BLOG ── */
.blog { background: var(--bg2); }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.blog-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  transition: transform .25s;
}
.blog-card:hover { transform: translateY(-4px); }
.blog-tag {
  display: inline-block;
  background: rgba(102,126,234,.15);
  color: var(--accent1);
  border-radius: 50px;
  padding: 4px 12px;
  font-size: .78rem;
  font-weight: 600;
  margin-bottom: 14px;
}
.blog-card h3 { font-size: 1rem; margin-bottom: 10px; line-height: 1.4; }
.blog-card p { color: var(--muted); font-size: .88rem; margin-bottom: 16px; }
.blog-meta { color: var(--muted); font-size: .8rem; margin-bottom: 16px; }
.blog-link { color: var(--accent1); font-size: .88rem; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.blog-link:hover { color: var(--accent3); }

/* ── CONTACT ── */
.contact { background: var(--bg); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-info h3 { font-size: 1.3rem; margin-bottom: 12px; }
.contact-info p { color: var(--muted); margin-bottom: 24px; }
.contact-details { display: flex; flex-direction: column; gap: 14px; }
.contact-item { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: .95rem; }
.contact-item i { color: var(--accent1); width: 20px; text-align: center; }
.contact-item a:hover { color: var(--accent3); }
.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: .85rem; color: var(--muted); font-weight: 500; }
.form-group input, .form-group textarea {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text);
  font-size: .95rem;
  font-family: inherit;
  transition: border-color .2s;
  resize: vertical;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent1);
  box-shadow: 0 0 0 3px rgba(102,126,234,.1);
}
.form-success {
  display: none;
  text-align: center;
  color: var(--green);
  font-size: .9rem;
  padding: 10px;
}

/* ── FOOTER ── */
.footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 48px 0 24px; }
.footer-content { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; flex-wrap: wrap; margin-bottom: 32px; }
.footer-brand p { color: var(--muted); font-size: .85rem; margin-top: 8px; line-height: 1.6; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); font-size: .9rem; transition: color .2s; }
.footer-links a:hover { color: var(--text); }
.footer-social { display: flex; gap: 14px; }
.footer-social a {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
  transition: all .2s;
}
.footer-social a:hover { border-color: var(--accent1); color: var(--accent1); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; text-align: center; color: var(--muted); font-size: .82rem; }

/* ── ANIMATIONS ── */
@keyframes slideDown { from { opacity: 0; transform: translateY(-30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideUp   { from { opacity: 0; transform: translateY(30px);  } to { opacity: 1; transform: translateY(0); } }
@keyframes spin      { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes float     { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-16px); } }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
}
@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: var(--navbar-h); left: 0; right: 0; background: var(--bg2); padding: 20px; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .hero { padding: 100px 24px 40px; }
  .section { padding: 64px 0; }
  .timeline-item { grid-template-columns: 60px 1fr; }
}
@media (max-width: 480px) {
  .hero-stats { flex-direction: column; }
  .footer-content { flex-direction: column; }
}