/* ─────────────────────────────────────────────────────────
   ARVA HEATERS — PREMIUM SHARED STYLESHEET
──────────────────────────────────────────────────────── */

:root {
  --blue:        #263294;
  --blue-dark:   #1b2470;
  --blue-light:  #eef0fc;

  --green:       #246b28;
  --green-dark:  #1a5020;
  --green-light: #edf6ee;

  --white:       #ffffff;
  --off-white:   #f7f8fc;

  --text:        #161c2d;
  --muted:       #687086;

  --border:      #dde3f0;

  --container:   1500px;

  --radius:      14px;
}

/* ───────────────── RESET ───────────────── */

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

html{
  scroll-behavior:smooth;
}

body{
  font-family:'DM Sans','Poppins',sans-serif;
  background:#fff;
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{
  display:block;
  max-width:100%;
}

a{
  text-decoration:none;
  color:inherit;
}

ul{
  list-style:none;
}

/* ───────────────── CONTAINER ───────────────── */

.container{
  width:95%;
  max-width:1500px;
  margin:auto;
}

/* ───────────────── NAVBAR ───────────────── */

nav{
  position:sticky;
  top:0;
  z-index:999;
  width:100%;

  height:72px;

  display:flex;
  align-items:center;
  justify-content:space-between;

  padding:0 36px;

  background:rgba(255,255,255,0.96);
  backdrop-filter:blur(14px);

  border-bottom:1px solid rgba(38,50,148,0.08);

  box-shadow:0 4px 22px rgba(38,50,148,0.06);
}

/* REMOVE OLD EXTRA HEIGHT */
.navbar{
  height:auto;
}

.logo{
  height:42px;
  width:auto;
  object-fit:contain;
}

.logo-text{
  font-family:'Outfit',sans-serif;
  font-size:1.45rem;
  font-weight:800;
  color:var(--blue);
  letter-spacing:-0.5px;
}

.logo-text span{
  color:var(--green);
}

nav ul{
  display:flex;
  align-items:center;
  gap:34px;
}

nav ul li a{
  position:relative;

  font-size:0.93rem;
  font-weight:600;

  color:var(--text);

  transition:0.25s ease;
}

nav ul li a::after{
  content:'';
  position:absolute;
  left:0;
  bottom:-8px;

  width:0;
  height:2px;

  background:var(--green);

  transition:0.25s ease;
}

nav ul li a:hover{
  color:var(--green);
}

nav ul li a:hover::after{
  width:100%;
}

/* ───────────────── BUTTON ───────────────── */

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;

  padding:11px 22px;

  border-radius:10px;

  font-family:'Outfit',sans-serif;
  font-size:0.9rem;
  font-weight:700;

  border:none;
  cursor:pointer;

  background:var(--green);
  color:#fff;

  transition:0.3s ease;
}

.btn:hover{
  background:var(--green-dark);

  transform:translateY(-2px);

  box-shadow:0 10px 24px rgba(36,107,40,0.24);
}

/* ───────────────── HERO / TOP SECTION ───────────────── */

.hero{
  padding:0px 0 0px;
}

.hero-content{
  min-height:vh;

  display:grid;
  grid-template-columns:1.05fr 1fr;
  align-items:center;

  gap:55px;
}

.hero-text h1{
  font-family:'Outfit',sans-serif;

  font-size:clamp(2.8rem,5vw,5rem);
  line-height:1.05;

  font-weight:800;

  color:var(--blue);

  margin-bottom:18px;

  letter-spacing:-2px;
}

.hero-text span{
  color:var(--green);
}

.hero-text p{
  max-width:640px;

  color:var(--muted);

  font-size:1rem;
  line-height:1.8;

  margin-bottom:30px;
}

.hero-buttons{
  display:flex;
  gap:16px;
}

.hero-image img{
  width:100%;
  border-radius:24px;

  box-shadow:
  0 25px 60px rgba(0,0,0,0.12);
}

/* ───────────────── SECTIONS ───────────────── */

.section{
  padding:65px 0;
}

.section-title{
  text-align:center;
  margin-bottom:38px;
}

.section h1{
  font-family:'Outfit',sans-serif;
  font-size:clamp(2rem,4vw,3rem);
  font-weight:800;

  color:var(--blue);

  margin-bottom:10px;
}

.section h2{
  font-family:'Outfit',sans-serif;
  font-size:clamp(1.7rem,3vw,2.3rem);
  font-weight:700;

  color:var(--blue);

  margin-bottom:12px;
}

.section p{
  color:var(--muted);
  line-height:1.8;

  max-width:760px;
}

/* ───────────────── CARDS ───────────────── */

.cards{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));

  gap:26px;

  margin-top:34px;
}

.card{
  background:#fff;

  border:1px solid var(--border);

  border-radius:16px;

  padding:28px;

  transition:0.35s ease;

  box-shadow:0 4px 20px rgba(0,0,0,0.03);
}

.card:hover{
  transform:translateY(-7px);

  border-color:rgba(38,50,148,0.18);

  box-shadow:
  0 20px 45px rgba(38,50,148,0.08);
}

.card h3{
  font-family:'Outfit',sans-serif;

  font-size:1.15rem;
  font-weight:700;

  color:var(--blue);

  margin-bottom:10px;
}

.card p{
  font-size:0.95rem;
}

.card a{
  display:inline-flex;
  align-items:center;
  gap:6px;

  margin-top:16px;

  color:var(--green);

  font-size:0.92rem;
  font-weight:700;

  transition:0.25s;
}

.card a:hover{
  gap:10px;
}

.card a::after{
  content:'→';
}

/* ───────────────── LISTS ───────────────── */

.section ul{
  margin-top:18px;
}

.section ul li{
  position:relative;

  padding:10px 0 10px 30px;

  border-bottom:1px solid var(--border);

  color:var(--text);

  font-size:0.96rem;
}

.section ul li::before{
  content:'✓';

  position:absolute;
  left:0;

  color:var(--green);

  font-weight:700;
}
/* ───────────────── PREMIUM ABOUT PAGE ───────────────── */

.about-page{
  position:relative;

  overflow:hidden;

  padding:130px 30px 110px;

  background:
    linear-gradient(
      135deg,
      rgba(38,50,148,0.04),
      rgba(36,107,40,0.05)
    ),
    #f8f9fd;
}

/* BIG BACKGROUND LOGO */

.about-bg-logo{
  position:absolute;

  inset:0;

  background:
    url('images/logo1.png') no-repeat center;

  background-size:750px;

  opacity:0.045;

  pointer-events:none;

  z-index:1;
}

/* EXTRA GLOW EFFECTS */

.about-page::before{
  content:'';

  position:absolute;

  top:-180px;
  right:-180px;

  width:420px;
  height:420px;

  border-radius:50%;

  background:
    rgba(38,50,148,0.08);

  filter:blur(20px);
}

.about-page::after{
  content:'';

  position:absolute;

  bottom:-140px;
  left:-140px;

  width:350px;
  height:350px;

  border-radius:50%;

  background:
    rgba(36,107,40,0.08);

  filter:blur(20px);
}

/* MAIN CONTENT */

.about-page-content{
  position:relative;

  z-index:2;

  max-width:1150px;

  margin:auto;
}

/* TITLE */

.about-page-content h1{
  text-align:center;

  font-family:'Sora',sans-serif;

  font-size:clamp(3.5rem,6vw,5.5rem);

  font-weight:800;

  letter-spacing:-3px;

  color:var(--blue);

  margin-bottom:18px;

  position:relative;
}

/* GREEN LINE BELOW TITLE */

.about-page-content h1::after{
  content:'';

  display:block;

  width:110px;
  height:5px;

  margin:22px auto 0;

  border-radius:20px;

  background:
    linear-gradient(
      90deg,
      var(--green),
      #48a34d
    );
}

/* QUOTE */

.about-quote{
  text-align:center;

  margin-bottom:60px;

  font-family:'Sora',sans-serif;

  font-size:1.15rem;

  font-weight:700;

  letter-spacing:4px;

  color:var(--green);

  text-transform:uppercase;

  position:relative;
}

/* QUOTE DECORATION */

.about-quote::before,
.about-quote::after{
  content:'';

  position:absolute;

  top:50%;

  width:90px;
  height:1.5px;

  background:
    rgba(36,107,40,0.25);
}

.about-quote::before{
  left:24%;
}

.about-quote::after{
  right:24%;
}

/* INFO CARD */

.about-info{
  position:relative;

  background:
    rgba(255,255,255,0.82);

  backdrop-filter:blur(14px);

  padding:70px;

  border-radius:34px;

  border:
    1px solid rgba(255,255,255,0.6);

  box-shadow:
    0 20px 60px rgba(38,50,148,0.08);

  overflow:hidden;
}

/* INNER LIGHT */

.about-info::before{
  content:'';

  position:absolute;

  top:0;
  left:0;

  width:100%;
  height:6px;

  background:
    linear-gradient(
      90deg,
      var(--blue),
      var(--green)
    );
}

/* PARAGRAPHS */

.about-info p{
  position:relative;

  color:#4f596f;

  font-size:1.04rem;

  line-height:2.15;

  margin-bottom:30px;

  text-align:justify;

  padding-left:26px;
}

/* SMALL GREEN ACCENT */

.about-info p::before{
  content:'';

  position:absolute;

  left:0;
  top:14px;

  width:10px;
  height:10px;

  border-radius:50%;

  background:var(--green);

  box-shadow:
    0 0 0 6px rgba(36,107,40,0.08);
}

.about-info p:last-child{
  margin-bottom:0;
}

/* MOBILE */

@media(max-width:768px){

  .about-page{
    padding:90px 18px 70px;
  }

  .about-page-content h1{
    font-size:3rem;
  }

  .about-quote{
    font-size:0.9rem;

    letter-spacing:2px;

    margin-bottom:35px;
  }

  .about-quote::before,
  .about-quote::after{
    display:none;
  }

  .about-info{
    padding:38px 24px;
  }

  .about-info p{
    font-size:0.98rem;

    line-height:1.95;

    text-align:left;

    padding-left:22px;
  }

  .about-bg-logo{
    background-size:320px;
  }

}

/* ───────────────── FORM ───────────────── */

form{
  max-width:580px;

  display:flex;
  flex-direction:column;

  gap:14px;
}

form input,
form textarea{
  width:100%;

  padding:14px 16px;

  border-radius:10px;

  border:1.5px solid var(--border);

  font-family:'DM Sans',sans-serif;

  font-size:0.95rem;

  transition:0.25s ease;

  outline:none;
}

form input:focus,
form textarea:focus{
  border-color:var(--blue);

  box-shadow:
  0 0 0 4px rgba(38,50,148,0.08);
}

form textarea{
  min-height:130px;
  resize:vertical;
}

/* ───────────────── FOOTER ───────────────── */

footer{
  background:var(--blue-dark);

  color:rgba(255,255,255,0.72);

  text-align:center;

  padding:28px 20px;

  font-size:0.88rem;
  line-height:1.8;
}

footer a{
  color:rgba(255,255,255,0.75);
  transition:0.2s;
}

footer a:hover{
  color:#b4ffb8;
}

/* ───────────────── RESPONSIVE ───────────────── */

@media(max-width:992px){

  .hero-content{
    grid-template-columns:1fr;
    gap:40px;
  }

  .hero{
    padding:40px 0;
  }

  .hero-content{
    min-height:auto;
  }

  nav ul{
    gap:22px;
  }

}

@media(max-width:768px){

  nav{
    padding:0 18px;
    height:68px;
  }

  nav ul{
    display:none;
  }

  .logo{
    height:36px;
  }

  .section{
    padding:55px 0;
  }

  .hero-text h1{
    font-size:2.7rem;
  }

  .hero-buttons{
    flex-direction:column;
    align-items:flex-start;
  }

  .cards{
    grid-template-columns:1fr;
  }

}
/* ───────────────── HAMBURGER / MOBILE NAV ───────────────── */

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

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: 0.3s ease;
}

.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 {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 20px 24px;
  z-index: 998;
  flex-direction: column;
  gap: 0;
  box-shadow: 0 8px 24px rgba(38,50,148,0.08);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  padding: 14px 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  transition: 0.2s;
}

.mobile-menu a:last-child {
  border-bottom: none;
  margin-top: 10px;
  background: var(--green);
  color: #fff;
  text-align: center;
  border-radius: 10px;
  padding: 13px;
}

.mobile-menu a:hover {
  color: var(--green);
}

/* Active nav link */
nav ul li a.active {
  color: var(--green);
}
nav ul li a.active::after {
  width: 100%;
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  nav .btn {
    display: none;
  }
}