:root {
  --solar-yellow: #FDB813;
  --solar-orange: #F47C20;
  --solar-blue: #1E6FD9;
  --solar-blue-dark: #0f3c88;
  --bg-light: #f7f9fc;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  background: #ffffff;
  color: var(--solar-blue-dark);
}

.container {
  max-width: 1200px;
  margin: auto;
  padding: 0 20px;
}

/* ================= HEADER ================= */
.header {
  background: #ffffff;
  border-bottom: 3px solid var(--solar-orange);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 90px;
}

/* ✅ FIXED LOGO (image only, no box feel) */
.logo {
  height: 150px;
  width: auto;
  object-fit: contain;
  display: block;
  background: transparent;
}


.nav a {
  margin-left: 32px;
  text-decoration: none;
  font-weight: 600;
  color: var(--solar-blue-dark);
}

.nav a:hover {
  color: var(--solar-orange);
}

/* ================= HERO ================= */
.hero {
  background: linear-gradient(135deg, #eaf2ff, #ffffff);
  padding: 100px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 30px;
  color: #355fa8;
}

.primary-btn {
  padding: 14px 28px;
  background: linear-gradient(90deg, var(--solar-orange), var(--solar-yellow));
  border: none;
  color: #000;
  font-weight: 700;
  border-radius: 10px;
  cursor: pointer;
}

.primary-btn:hover {
  opacity: 0.9;
}

/* ================= SOLAR CARD ================= */
.solar-card {
  background: #ffffff;
  padding: 30px;
  border-radius: 18px;
  border: 2px solid var(--solar-blue);
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.solar-card h3 {
  color: var(--solar-blue);
  margin-bottom: 15px;
}

.solar-card input {
  width: 100%;
  padding: 12px;
  border: 1.5px solid var(--solar-blue);
  border-radius: 8px;
  margin-bottom: 15px;
}

#calcResult {
  margin-top: 10px;
  font-weight: 600;
  color: var(--solar-blue-dark);
}

/* ================= SERVICES ================= */
.services {
  padding: 100px 0;
}

.section-title {
  text-align: center;
  font-size: 36px;
  color: var(--solar-blue-dark);
}

.section-subtitle {
  text-align: center;
  max-width: 600px;
  margin: 15px auto 60px;
  font-size: 18px;
  color: #355fa8;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-card {
  background: #ffffff;
  padding: 40px 30px;
  border-radius: 18px;
  border-left: 6px solid var(--solar-blue);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
  transition: 0.3s;
}

.service-card:hover {
  transform: translateY(-6px);
}

.service-card h3 {
  color: var(--solar-blue);
  margin-bottom: 15px;
}

/* ================= WHY US ================= */
.why-us {
  background: var(--bg-light);
  padding: 100px 0;
}

.why-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.why-us h2 {
  font-size: 36px;
  margin-bottom: 20px;
}

.why-list {
  list-style: none;
}

.why-list li {
  font-size: 18px;
  margin-bottom: 12px;
}

.why-card {
  background: #ffffff;
  padding: 40px;
  border-radius: 18px;
  border-top: 6px solid var(--solar-orange);
  box-shadow: 0 12px 30px rgba(0,0,0,0.08);
}

/* ================= PRODUCT STRUCTURE ================= */
.product-structure {
  padding: 70px 0;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
  gap: 10px;
}

.product-card {
  background: #ffffff;
  padding: 20px;
  border-radius: 16px;
  border-top: 6px solid var(--solar-orange);
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  text-align: center;
  min-height: 10px;
}

.product-card h3 {
  color: var(--solar-blue);
  margin-bottom: 10px;
}

/* ✅ FIXED PRODUCT LOGO SIZE */
.logo-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 90px;
  flex-wrap: wrap;
  margin-top: 15px;
}

.logo-row img {
  height: 140px;
  width: auto;
  object-fit: contain;
}

/* ================= SURYA YOJANA ================= */
.surya-yojana {
  padding: 100px 0;
  background: linear-gradient(135deg, #eaf2ff, #ffffff);
}

.surya-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
}

.surya-text h2 {
  margin-bottom: 20px;
}

.surya-text p {
  margin-bottom: 15px;
  color: #355fa8;
}

/* ✅ FIXED MODI IMAGE SIZE */
.surya-image {
  display: flex;
  justify-content: center;
}

.surya-image img {
  height: 340px;
  width: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 16px;
  border: 4px solid var(--solar-orange);
}

/* ================= FOOTER ================= */
.footer {
  background: var(--solar-blue-dark);
  color: #ffffff;
  text-align: center;
  padding: 40px 0;
  border-top: 4px solid var(--solar-orange);
}

.footer p {
  margin-bottom: 6px;
}