/*
Theme Name: DSW Approved Ocean Desert Hero Icons v3.2
Theme URI: https://deepseawaterutilization.org/
Author: Deep Sea Water Utilization Project
Description: Homepage using the approved ocean-and-desert visual without duplicate overlay text.
Version: 3.2.0
*/
:root{--blue:#063fae;--deep:#062e7f;--cyan:#34d5ff;--ink:#0b2c55;--muted:#63728a;--line:#dbe5f2;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:#fff;line-height:1.55}a{color:inherit;text-decoration:none}
.site-header{position:sticky;top:0;z-index:99;background:linear-gradient(90deg,var(--deep),var(--blue));color:#fff;border-bottom:1px solid rgba(255,255,255,.2)}
.nav{max-width:var(--max);margin:auto;padding:18px 28px;display:flex;justify-content:space-between;align-items:center;gap:24px}.brand{font-size:20px;font-weight:700;line-height:1.15}.nav-links{display:flex;gap:26px;flex-wrap:wrap;font-size:15px}.nav-links a:hover{text-decoration:underline;text-underline-offset:6px}
.hero-visual{background:#063fae}.hero-visual img{width:100%;display:block;height:auto}
.section{padding:80px 28px}.section-inner{max-width:var(--max);margin:auto}.kicker{text-align:center;color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.18em;text-transform:uppercase}
h2{text-align:center;font-size:clamp(36px,4.8vw,64px);line-height:1.05;letter-spacing:-.035em;margin:10px auto 18px}.intro{max-width:820px;margin:0 auto;text-align:center;color:var(--muted);font-size:19px}
.app-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:44px}.app-card{border:1px solid var(--line);padding:28px 20px;text-align:center;min-height:210px}.app-icon{width:66px;height:66px;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;color:var(--blue)}.app-card h3{color:var(--deep);font-size:18px;line-height:1.25;margin:0 0 12px}.app-card p{color:var(--muted);font-size:14px;margin:0}
.tech{background:#f5f8fd}.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:42px}.tech-card{background:#fff;border:1px solid var(--line);padding:32px}.num{color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.14em}.tech-card h3{font-size:25px;line-height:1.2;margin:14px 0;color:var(--ink)}.tech-card p{color:var(--muted);margin:0}
.collab{background:linear-gradient(90deg,var(--deep),var(--blue));color:#fff}.collab .kicker,.collab h2{color:#fff}.collab .intro{color:rgba(255,255,255,.86)}
.contact{max-width:var(--max);margin:auto;padding:36px 28px;display:flex;justify-content:space-between;gap:24px;align-items:center}.contact strong{font-size:20px}.contact span{color:var(--muted)}
footer{background:var(--deep);color:rgba(255,255,255,.84);padding:26px 28px;font-size:13px}.footer-inner{max-width:var(--max);margin:auto}
@media(max-width:980px){.nav{flex-direction:column;align-items:flex-start}.app-grid{grid-template-columns:1fr 1fr}.tech-grid{grid-template-columns:1fr}}
@media(max-width:640px){.app-grid{grid-template-columns:1fr}.contact{flex-direction:column;align-items:flex-start}}

.app-icon svg{
  width:58px;
  height:58px;
  fill:none;
  stroke:currentColor;
  stroke-width:2.2;
  stroke-linecap:round;
  stroke-linejoin:round;
}
#cooling{scroll-margin-top:110px;}