:root {
  --primary-blue: #5CB8FF;
  --soft-gray-bg: #F2F4F7;
  --text-dark: #1E293B;
  --text-muted: #64748B;
  --white: #FFFFFF;
  --border-color: #E2E8F0;
  --radius: 10px;
  
}

/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

body {
  background-color: var(--white);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

/* UNIVERSAL CONTAINER */
/* CONTAINER */
.calci-container {
  max-width: 1250px;
  margin: 0 auto;
  padding: 0 5%;
  width: 100%;
}

/* HEADER */
.calc-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
  background: rgba(255,255,255,0.6);
  border-bottom: 1px solid rgba(255,255,255,0.3);
}

.calc-header.scrolled {
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(16px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.calc-header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5%;
}


/* LOGO */
.calc-logo a,
.calc-footer-logo a {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.calc-logo img,
.calc-footer-logo img {
  height: 35px;
}

.calc-logo span,
.calc-footer-logo span {
  font-size: 24px;
  font-weight: 700;
  color: #5cb8ff;
}

.calc-logo a:hover span,
.calc-footer-logo a:hover span {
  color: #000;
  opacity: .85;
}

/* NAV */
.calc-nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.calc-nav a {
  text-decoration: none;
  color: #1E293B;
  font-weight: 500;
  padding-bottom: 2px;
}

.calc-nav a:hover {
  color: #5CB8FF;
  border-bottom: 2px solid #5CB8FF;
}

/* MOBILE NAV */
.calc-menu-toggle {
  display: none;
}

@media(max-width:768px){
  .calc-menu-toggle{
    display:block;
    font-size:1.5rem;
    cursor:pointer;
    color:#5CB8FF;
  }

  .calc-nav ul{
    display:none;
    flex-direction:column;
    background:#fff;
    position:absolute;
    top:60px;
    right:5%;
    padding:1.5rem;
    border-radius:10px;
    box-shadow:0 2px 10px rgba(0,0,0,0.05);
  }

  .calc-nav ul.active{
    display:flex;
  }
}

/* FOOTER */
.calc-footer {
  background:#F2F4F7;
  color:#64748B;
}

.calc-footer-top {
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:2rem;
  padding-top:30px;
  margin-bottom:2rem;
}

.calc-footer-col h3{
  color:#1E293B;
  margin-bottom:1rem;
}

.calc-footer-col ul{
  list-style:none;
}

.calc-footer-col li{
  margin-bottom:.5rem;
}

.calc-footer-col a{
  text-decoration:none;
  color:#64748B;
}

.calc-footer-col a:hover{
  color:#5CB8FF;
}

.calc-footer-bottom{
  text-align:center;
  border-top:1px solid #E2E8F0;
  padding:1rem 0;
  font-size:.9rem;
}

/* Header, Footer Upto here... */


/* ===== HERO ===== */
.calc-hero {
  padding: 5rem 5%;
  text-align: center;
  background: #f4f7fb;
}

.calc-hero h1 {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #0f172a;
}

.calc-hero h1 span {
  color: #0ea5e9; /* bright professional blue */
}

.calc-hero p {
  max-width: 650px;
  margin: auto;
  color: #475569;
  font-size: 1.05rem;
  line-height: 1.6;
}


/* ===== SECTION ===== */
.calc-section {
  padding: 60px 20px;
  background: #f8fafc;
}

.calc-container {
  max-width: 1100px;
  margin: auto;
  text-align: center;
}

.calc-title {
  font-size: 2.2rem;
  margin-bottom: 20px;
  color: #0f172a;
}


/* ===== SEARCH ===== */
.calc-search {
  width: 100%;
  max-width: 450px;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid #cbd5e1;
  margin-bottom: 30px;
  font-size: 1rem;
  color: #0f172a;
  background: white;
}

.calc-search::placeholder {
  color: #94a3b8;
}


/* ===== FILTER BUTTONS ===== */
.calc-filter {
  margin-bottom: 40px;
}

.calc-btn {
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid #cbd5e1;
  background: white;
  margin: 6px;
  cursor: pointer;
  transition: all .25s ease;
  color: #334155;
  font-weight: 500;
}

.calc-btn:hover {
  background: #e2e8f0;
}

.calc-btn.active {
  background: #0ea5e9;
  color: white;
  border-color: #0ea5e9;
}


/* ===== GRID ===== */
.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(260px,1fr));
  gap: 26px;
}


/* ===== CARD ===== */
.calc-card {
  background: white;
  padding: 26px;
  border-radius: 14px;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 6px 18px rgba(15,23,42,.06);
  transition: all .3s ease;
  border: 1px solid #e2e8f0;
  text-align: left;
}

.calc-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 34px rgba(15,23,42,.08);
}


/* ===== MULTI-COLOR CARD TITLES ===== */
.calc-card:nth-child(4n+1) h3 { color: #0ea5e9; }  /* blue */
.calc-card:nth-child(4n+2) h3 { color: #10b981; }  /* green */
.calc-card:nth-child(4n+3) h3 { color: #f59e0b; }  /* amber */
.calc-card:nth-child(4n+4) h3 { color: #6366f1; }  /* indigo */

.calc-card h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.calc-card p {
  color: #475569;
  font-size: .96rem;
  line-height: 1.6;
}


/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {

  .calc-hero h1 {
    font-size: 2.2rem;
  }

  .calc-card {
    padding: 22px;
  }

}


/* Index Page Css Upto here... */