/* ==========================================
MODEL +
HYDROGEN ENERGY STORAGE PAGE
model-plus.css
========================================== */

/* ==========================
BODY
========================== */

body{

background:var(--bg);
color:var(--text);
font-family:Arial,Helvetica,sans-serif;
line-height:1.7;

}

/* ==========================
COMMON
========================== */

.container{

width:90%;
max-width:1200px;
margin:auto;

}

.section-tag{

display:inline-block;
padding:8px 18px;
font-size:30px;
letter-spacing:2px;
color:var(--primary);
margin-bottom:20px;
text-transform:uppercase;

}

h2{

font-size:clamp(2rem,4vw,3.5rem);
margin-bottom:20px;
font-weight:700;

}

p{

color:var(--light);

}

/* ==========================
OVERVIEW
========================== */

.overview{

padding:120px 0;

}

.overview-grid{

display:grid;
grid-template-columns:repeat(auto-fit,minmax(350px,1fr));
align-items:center;
gap:70px;
width:90%;
max-width:1200px;
margin:auto;

}

.overview-content p{

font-size:1.1rem;
margin-bottom:40px;
max-width:600px;

}

.overview-image{

text-align:center;

}

.overview-image img{

width:100%;
max-width:550px;
border-radius:18px;
transition:.5s;

}

.overview-image img:hover{

transform:scale(1.03);

}

/* ==========================
BUTTONS
========================== */

.buttons{

display:flex;
gap:20px;
flex-wrap:wrap;

}

.btn,
.cta-buttons{

display:inline-block;
padding:15px 32px;
text-decoration:none;
border-radius:10px;
font-weight:bold;
transition:.35s;

}

.primary{

color:#fff;

}

.primary:hover{

transform:translateY(-3px);

}

.cta-buttons{

background:#fff;
color:#000;

}

.cta-buttons:hover{

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

}

/* ==========================
SHOWCASE
========================== */

.product-showcase{

padding:80px 0;
text-align:center;

}

.product-showcase img{

width:100%;
max-width:1200px;
border-radius:18px;

}

/* ==========================
FEATURES
========================== */

.features{

padding:120px 0;

}

.features h2{

margin-bottom:60px;

}

.feature-grid{

display:grid;
grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
gap:30px;

}

.feature-card{

background:linear-gradient(180deg,#111827,#0b1119);
border:1px solid var(--border);
padding:35px;
border-radius:18px;
transition:.35s;

}

.feature-card:hover{

transform:translateY(-10px);

}

.feature-card h3{

margin-bottom:15px;
font-size:1.3rem;
color:var(--primary);

}

.feature-card p{

font-size:1rem;

}

/* ==========================
SPECIFICATIONS
========================== */

.specifications{

padding:120px 0;

}

.specifications h2{

margin-bottom:60px;

}

.spec-grid{

display:grid;
grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
gap:30px;

}

.spec-card{

background:linear-gradient(180deg,#111827,#0b1119);
border:1px solid var(--border);
padding:35px;
border-radius:18px;
transition:.35s;

}

.spec-card:hover{

transform:translateY(-10px);

}

.spec-card h3{

margin-bottom:15px;
font-size:1.3rem;
color:var(--primary);

}

.spec-card p{

font-size:1rem;

}

/* ==========================
APPLICATIONS
========================== */

.applications{

padding:120px 0;
background:#05070d;

}

.application-grid{

display:grid;
grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
gap:25px;

}

.application-card{

background:#10151f;
border:1px solid var(--border);
border-radius:18px;
padding:35px;
transition:.35s;

}

.application-card:hover{

transform:translateY(-10px);

}

.application-card h3{

margin-bottom:15px;
color:var(--primary);

}

/* ==========================
CTA
========================== */

.cta{

position:relative;
padding:140px 20px;
text-align:center;
background:url("../image/hydrogen.jpg") center/cover no-repeat;
overflow:hidden;

}

.cta-overlay{

position:absolute;
inset:0;
background:linear-gradient(rgba(3,6,12,.85),rgba(4,9,18,.9));

}

.cta-content{

position:relative;
max-width:750px;
margin:auto;
z-index:2;

}

.cta p{

margin:30px auto;
max-width:650px;

}

/* ==========================
ANIMATIONS
========================== */

.overview-content,
.feature-card,
.spec-card,
.application-card{

animation:fadeUp .9s ease;

}

@keyframes fadeUp{

from{

opacity:0;
transform:translateY(40px);

}

to{

opacity:1;
transform:translateY(0);

}

}

/* ==========================
RESPONSIVE
========================== */

@media(max-width:768px){

.overview{

padding:90px 0;

}

.overview-grid{

grid-template-columns:1fr;
gap:50px;

}

h2{

font-size:2rem;

}

.feature-grid,
.spec-grid,
.application-grid{

grid-template-columns:1fr;

}

.buttons{

flex-direction:column;

}

.btn,
.cta-buttons{

width:100%;
text-align:center;

}

}