/* Smart Energy Solutions — brand: Navy #0B2545 · Blue #2D6FF7 */
@font-face { font-family: 'Archivo'; src: url('../assets/fonts/archivo-latin-500-normal.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Archivo'; src: url('../assets/fonts/archivo-latin-600-normal.woff2') format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Archivo'; src: url('../assets/fonts/archivo-latin-700-normal.woff2') format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'Source Sans 3'; src: url('../assets/fonts/source-sans-3-latin-400-normal.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Source Sans 3'; src: url('../assets/fonts/source-sans-3-latin-600-normal.woff2') format('woff2'); font-weight: 600; font-display: swap; }

:root {
  --navy: #0B2545; --blue: #2D6FF7; --sky: #8FB1FA; --ice: #EAF1FC;
  --ink: #1C2B3A; --slate: #3D4A5C; --gray: #8593A3; --line: #E3E9F1;
  --fog: #F3F6FA; --deep: #081A31;
  --head: 'Archivo', system-ui, sans-serif;
  --body: 'Source Sans 3', system-ui, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--body); font-size: 18px; line-height: 1.6; color: var(--ink); background: #fff; }
h1, h2, h3 { font-family: var(--head); color: var(--navy); line-height: 1.15; }
h1 { font-size: clamp(2rem, 4.6vw, 3.3rem); font-weight: 700; letter-spacing: -0.5px; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { color: var(--slate); }
a { color: var(--blue); text-decoration: none; }
img { max-width: 100%; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* Header */
header { position: sticky; top: 0; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); z-index: 50; }
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.nav .logo img { height: 44px; display: block; }
.nav ul { display: flex; align-items: center; gap: 30px; list-style: none; }
.nav ul a { color: var(--navy); font-family: var(--head); font-weight: 500; font-size: .98rem; }
.nav ul a:hover { color: var(--blue); }
.nav ul a.active { color: var(--blue); }
.btn { display: inline-block; background: var(--blue); color: #fff !important; font-family: var(--head); font-weight: 600; padding: 13px 26px; border-radius: 9px; border: 0; font-size: 1rem; cursor: pointer; transition: background .15s; }
.btn:hover { background: #1e5ce0; }
.btn-lg { padding: 16px 34px; font-size: 1.08rem; }
.btn-ghost { background: transparent; color: var(--navy) !important; border: 1.5px solid var(--line); }
.btn-ghost:hover { background: var(--fog); }
.menu-btn { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.menu-btn span { display: block; width: 24px; height: 2.5px; background: var(--navy); margin: 5px 0; border-radius: 2px; }

/* Hero */
.hero { background: linear-gradient(180deg, var(--ice) 0%, #fff 90%); padding: 88px 0 64px; }
.hero .kicker { font-family: var(--head); font-weight: 600; font-size: .85rem; letter-spacing: 2.5px; text-transform: uppercase; color: var(--blue); margin-bottom: 18px; }
.hero h1 { max-width: 780px; }
.hero .sub { font-size: 1.25rem; max-width: 680px; margin: 22px 0 34px; }
.hero .actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero .note { margin-top: 16px; font-size: .95rem; color: var(--gray); }

/* Hero image */
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.hero-img { border-radius: 18px; overflow: hidden; box-shadow: 0 18px 44px rgba(11,37,69,.18); }
.hero-img img { display: block; width: 100%; height: 420px; object-fit: cover; }

/* Image bands */
.photo-band { border-radius: 18px; overflow: hidden; margin: 8px 0 0; }
.photo-band img { display: block; width: 100%; height: 340px; object-fit: cover; }
.side-photo { border-radius: 14px 14px 0 0; overflow: hidden; margin: -32px -32px 24px; }
.side-photo img { display: block; width: 100%; height: 200px; object-fit: cover; }

/* Stat bar */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 56px 0 0; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 26px 28px; }
.stat b { display: block; font-family: var(--head); font-size: 1.9rem; font-weight: 700; color: var(--navy); }
.stat span { color: var(--slate); font-size: .98rem; }

/* Sections */
section { padding: 72px 0; }
.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head p { margin-top: 12px; font-size: 1.1rem; }
.alt { background: var(--fog); }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.step { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 24px 20px; }
.step .num { width: 34px; height: 34px; border-radius: 9px; background: var(--navy); color: #fff; font-family: var(--head); font-weight: 700; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.step h3 { margin-bottom: 6px; font-size: 1.02rem; }
.step p { font-size: .92rem; line-height: 1.45; }

/* Feature cards */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 30px; }
.card .tick { color: var(--blue); font-weight: 700; font-size: 1.2rem; }
.card h3 { margin: 10px 0 8px; }

/* Utilities strip */
.utilities { text-align: center; }
.utilities .names { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px 40px; margin: 26px 0 14px; font-family: var(--head); font-weight: 600; font-size: 1.25rem; color: var(--slate); }
.utilities .fine { font-size: .85rem; color: var(--gray); max-width: 640px; margin: 0 auto; }

/* CTA band */
.cta-band { background: var(--navy); border-radius: 0; padding: 76px 0; text-align: center; }
.cta-band h2 { color: #fff; }
.cta-band p { color: var(--sky); font-size: 1.15rem; margin: 14px auto 30px; max-width: 560px; }

/* Page hero (inner pages) */
.page-hero { background: linear-gradient(180deg, var(--ice) 0%, #fff 100%); padding: 64px 0 44px; }
.page-hero p { font-size: 1.2rem; max-width: 700px; margin-top: 16px; }

/* Expanded steps (how it works) */
.xstep { display: grid; grid-template-columns: 64px 1fr; gap: 22px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.xstep:last-child { border-bottom: 0; }
.xstep .num { width: 52px; height: 52px; border-radius: 13px; background: var(--navy); color: #fff; font-family: var(--head); font-weight: 700; font-size: 1.4rem; display: flex; align-items: center; justify-content: center; }
.xstep h3 { font-size: 1.25rem; margin-bottom: 6px; }

/* FAQ */
.faq { max-width: 760px; }
.faq details { border: 1px solid var(--line); border-radius: 12px; padding: 20px 24px; margin-bottom: 12px; background: #fff; }
.faq summary { font-family: var(--head); font-weight: 600; color: var(--navy); font-size: 1.05rem; cursor: pointer; }
.faq details p { margin-top: 12px; }

/* Forms */
.form-wrap { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: start; }
form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
label { display: block; font-family: var(--head); font-weight: 500; font-size: .92rem; color: var(--navy); margin: 16px 0 6px; }
input, select, textarea { width: 100%; font-family: var(--body); font-size: 1rem; color: var(--ink); padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 9px; background: #fff; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--blue); }
form .btn { margin-top: 24px; }
.contact-side { background: var(--fog); border-radius: 14px; padding: 32px; }
.contact-side h3 { margin-bottom: 8px; }
.contact-side p { margin-bottom: 18px; }
.form-msg { margin-top: 14px; font-weight: 600; }

/* Footer */
footer { background: var(--deep); color: var(--sky); padding: 56px 0 32px; }
.foot { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.foot img { height: 40px; margin-bottom: 16px; }
.foot p, .foot a { color: var(--sky); font-size: .95rem; }
.foot a:hover { color: #fff; }
.foot h3 { color: #fff; font-size: .9rem; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 14px; }
.foot ul { list-style: none; } .foot li { margin-bottom: 8px; }
.copyright { border-top: 1px solid rgba(143,177,250,.2); padding-top: 24px; font-size: .85rem; color: rgba(143,177,250,.7); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* Responsive */
@media (max-width: 920px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-img img { height: 300px; }
  .photo-band img { height: 240px; }
  .stats { grid-template-columns: 1fr; gap: 12px; }
  .form-wrap { grid-template-columns: 1fr; }
  .foot { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 720px) {
  .nav ul { display: none; position: absolute; top: 76px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); flex-direction: column; align-items: flex-start; padding: 20px 24px; gap: 18px; }
  .nav ul.open { display: flex; }
  .menu-btn { display: block; }
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  form .row { grid-template-columns: 1fr; }
  section { padding: 52px 0; }
}