/* ============================================================
   ROAVON PRIVATE LIMITED  —  Brand Stylesheet
   Palette derived from logo: deep navy + vibrant green
   ============================================================ */

:root {
    --navy:        #0e1a2b;
    --navy-2:      #142438;
    --navy-3:      #1c3149;
    --green:       #2ba84a;
    --green-dark:  #1e8c3a;
    --green-light: #4cc46a;
    --green-soft:  #eaf6ee;

    --ink:         #0e1a2b;
    --body:        #47566a;
    --muted:       #7b8798;
    --line:        #e6ebf1;
    --bg:          #ffffff;
    --bg-alt:      #f5f8fb;

    --radius:      16px;
    --radius-sm:   10px;
    --shadow-sm:   0 4px 16px rgba(14, 26, 43, .06);
    --shadow:      0 18px 44px rgba(14, 26, 43, .12);
    --shadow-lg:   0 30px 70px rgba(14, 26, 43, .18);

    --container:   1180px;
    --font-head:   'Sora', system-ui, sans-serif;
    --font-body:   'Inter', system-ui, sans-serif;
    --t:           .28s cubic-bezier(.4, 0, .2, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
    font-family: var(--font-body);
    color: var(--body);
    background: var(--bg);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
    font-family: var(--font-head);
    color: var(--ink);
    line-height: 1.18;
    font-weight: 700;
    letter-spacing: -.01em;
}

a { color: var(--green-dark); text-decoration: none; transition: color var(--t); }
a:hover { color: var(--green); }

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

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

section { position: relative; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 15px;
    padding: 13px 26px;
    border-radius: 999px;
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: all var(--t);
    white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; fill: currentColor; }
.btn-primary { background: var(--green); color: #fff; box-shadow: 0 10px 24px rgba(43, 168, 74, .3); }
.btn-primary:hover { background: var(--green-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 14px 30px rgba(43, 168, 74, .38); }
.btn-outline { border-color: rgba(255, 255, 255, .35); color: #fff; }
.btn-outline:hover { background: rgba(255, 255, 255, .12); color: #fff; transform: translateY(-2px); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: var(--green); color: var(--green-dark); transform: translateY(-2px); }
.btn-lg { padding: 16px 34px; font-size: 16px; }

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, .9);
    backdrop-filter: saturate(160%) blur(12px);
    border-bottom: 1px solid var(--line);
    transition: box-shadow var(--t);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand-logo { height: 34px; width: auto; }
.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a {
    font-family: var(--font-head);
    font-weight: 500;
    font-size: 15px;
    color: var(--navy-2);
    position: relative;
}
.main-nav a:not(.btn)::after {
    content: "";
    position: absolute;
    left: 0; bottom: -6px;
    width: 0; height: 2px;
    background: var(--green);
    transition: width var(--t);
}
.main-nav a:not(.btn):hover::after,
.main-nav a.active:not(.btn)::after { width: 100%; }
.main-nav a.active:not(.btn) { color: var(--green-dark); }
.nav-cta { color: #fff !important; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--navy); border-radius: 2px; transition: all var(--t); }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    background: radial-gradient(1200px 600px at 80% -10%, rgba(43, 168, 74, .22), transparent 60%),
                linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 60%, #0b1624 100%);
    color: #eaf1f8;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
    background-size: 46px 46px;
    mask-image: radial-gradient(600px 400px at 20% 20%, #000, transparent 75%);
}
.hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 56px;
    align-items: center;
    padding: 92px 0 100px;
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-head);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--green-light);
    background: rgba(43, 168, 74, .14);
    border: 1px solid rgba(76, 196, 106, .3);
    padding: 7px 15px;
    border-radius: 999px;
}
.hero h1 {
    color: #fff;
    font-size: clamp(2.3rem, 5vw, 3.6rem);
    margin: 22px 0 18px;
    font-weight: 800;
}
.hero h1 .accent { color: var(--green-light); }
.hero p.lead { font-size: 1.12rem; color: #b9c6d6; max-width: 540px; }
.hero-actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 34px; margin-top: 46px; flex-wrap: wrap; }
.hero-stats .stat strong { display: block; font-family: var(--font-head); font-size: 1.9rem; color: #fff; font-weight: 700; }
.hero-stats .stat span { font-size: .86rem; color: #9fb0c2; }

/* Hero visual card */
.hero-visual { position: relative; }
.glass-card {
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 20px;
    padding: 26px;
    backdrop-filter: blur(6px);
    box-shadow: var(--shadow-lg);
}
.glass-card h3 { color: #fff; font-size: 1.05rem; margin-bottom: 18px; }
.mini-row { display: flex; align-items: center; gap: 14px; padding: 13px 0; border-top: 1px solid rgba(255, 255, 255, .1); }
.mini-row:first-of-type { border-top: 0; }
.mini-ic { width: 42px; height: 42px; flex: none; border-radius: 12px; display: grid; place-items: center; background: rgba(43, 168, 74, .16); }
.mini-ic svg { width: 22px; height: 22px; fill: var(--green-light); }
.mini-row .txt strong { display: block; color: #fff; font-size: .95rem; font-family: var(--font-head); }
.mini-row .txt span { font-size: .82rem; color: #9fb0c2; }

/* ---------- Hero feature tags ---------- */
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.hero-tags .tag {
    display: inline-flex; align-items: center; gap: 7px;
    font-family: var(--font-head); font-size: .8rem; font-weight: 500;
    color: #cdd8e4;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .12);
    padding: 6px 13px; border-radius: 999px;
}
.hero-tags .tag svg { width: 14px; height: 14px; fill: var(--green-light); }

/* ---------- Control Tower dashboard mock (hero) ---------- */
.ct-panel {
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(255, 255, 255, .13);
    border-radius: 20px;
    padding: 16px;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(6px);
}
.ct-head { display: flex; align-items: center; justify-content: space-between; padding: 6px 8px 14px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.ct-head .ct-title { display: flex; align-items: center; gap: 9px; color: #fff; font-family: var(--font-head); font-weight: 600; font-size: .95rem; }
.ct-head .ct-title svg { width: 18px; height: 18px; fill: var(--green-light); }
.ct-dots { display: flex; gap: 6px; }
.ct-dots i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255, 255, 255, .25); }
.ct-dots i.live { background: var(--green-light); box-shadow: 0 0 0 4px rgba(76, 196, 106, .18); }
.ct-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 12px; margin-top: 14px; }
.ct-w { background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .1); border-radius: 13px; padding: 14px; }
.ct-w .lbl { font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: #8ea1b5; font-family: var(--font-head); font-weight: 600; }
.ct-w .big { font-family: var(--font-head); font-weight: 800; color: #fff; font-size: 1.7rem; line-height: 1.1; margin-top: 6px; }
.ct-w .sub { font-size: .76rem; color: #9fb0c2; }

/* fleet map widget */
.ct-map { position: relative; height: 118px; margin-top: 10px; border-radius: 10px; overflow: hidden; background:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(160deg, #0b1728, #12233a);
    background-size: 22px 22px, 22px 22px, 100% 100%; }
.ct-route { position: absolute; inset: 0; }
.ct-node { position: absolute; width: 10px; height: 10px; border-radius: 50%; background: var(--green-light); box-shadow: 0 0 0 5px rgba(76,196,106,.18); }
.ct-node.n1 { left: 14%; top: 62%; } .ct-node.n2 { left: 46%; top: 30%; } .ct-node.n3 { left: 78%; top: 58%; background:#fff; box-shadow:0 0 0 5px rgba(255,255,255,.15); }

/* status bars */
.ct-bar { margin-top: 11px; }
.ct-bar .row { display: flex; justify-content: space-between; font-size: .76rem; color: #b9c6d6; margin-bottom: 5px; }
.ct-track { height: 7px; border-radius: 6px; background: rgba(255, 255, 255, .1); overflow: hidden; }
.ct-track span { display: block; height: 100%; border-radius: 6px; background: linear-gradient(90deg, var(--green), var(--green-light)); }

/* AI assistant bubble */
.ct-ai { grid-column: 1 / -1; display: flex; gap: 11px; align-items: flex-start; background: rgba(43, 168, 74, .1); border: 1px solid rgba(76, 196, 106, .25); border-radius: 13px; padding: 13px; }
.ct-ai .av { width: 32px; height: 32px; flex: none; border-radius: 9px; background: var(--green); display: grid; place-items: center; }
.ct-ai .av svg { width: 18px; height: 18px; fill: #fff; }
.ct-ai .msg { font-size: .82rem; color: #dfeaf3; }
.ct-ai .msg b { color: var(--green-light); font-family: var(--font-head); display: block; font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 3px; }

/* ---------- Section header ---------- */
.section { padding: 92px 0; }
.section.alt { background: var(--bg-alt); }
.section-head { max-width: 720px; margin: 0 auto 54px; text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }
.section-head .eyebrow { color: var(--green-dark); background: var(--green-soft); border-color: rgba(43, 168, 74, .2); }
.section-head h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); margin: 18px 0 14px; }
.section-head p { color: var(--muted); font-size: 1.05rem; }

/* ---------- Feature / card grid ---------- */
.grid { display: grid; gap: 26px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 30px;
    transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.card .icon-box {
    width: 54px; height: 54px;
    border-radius: 14px;
    display: grid; place-items: center;
    background: var(--green-soft);
    margin-bottom: 20px;
}
.card .icon-box svg { width: 27px; height: 27px; fill: var(--green-dark); }
.card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.card p { font-size: .96rem; }
.card .card-link {
    display: inline-flex; align-items: center; gap: 6px;
    margin-top: 16px; font-family: var(--font-head); font-weight: 600; font-size: .9rem;
}
.card .card-link svg { width: 16px; height: 16px; fill: currentColor; transition: transform var(--t); }
.card:hover .card-link svg { transform: translateX(4px); }

/* numbered step card */
.step { position: relative; padding-top: 8px; }
.step .num {
    font-family: var(--font-head);
    font-size: 2.4rem; font-weight: 800;
    color: var(--green); opacity: .28; line-height: 1;
}
.step h3 { margin: 12px 0 8px; font-size: 1.15rem; }

/* ---------- Split feature ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split.reverse .split-media { order: 2; }
.split-media {
    border-radius: var(--radius);
    background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%);
    padding: 40px;
    color: #fff;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}
.split-media::after {
    content: "";
    position: absolute;
    right: -60px; top: -60px;
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(43, 168, 74, .5), transparent 70%);
}
.split-media h3 { color: #fff; margin-bottom: 20px; }
.check-list { list-style: none; display: grid; gap: 14px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; }
.check-list.dark li { color: #cdd8e4; }
.check-list .tick { flex: none; width: 24px; height: 24px; border-radius: 50%; background: var(--green); display: grid; place-items: center; margin-top: 2px; }
.check-list .tick svg { width: 14px; height: 14px; fill: #fff; }
.split-text h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 16px 0 16px; }

/* ---------- Stats band ---------- */
.stat-band {
    background: linear-gradient(120deg, var(--navy) 0%, var(--navy-2) 100%);
    color: #fff;
}
.stat-band .grid-4 { gap: 20px; }
.stat-item { text-align: center; padding: 22px; }
.stat-item strong { display: block; font-family: var(--font-head); font-size: 2.6rem; font-weight: 800; color: var(--green-light); }
.stat-item span { color: #b9c6d6; font-size: .95rem; }

/* ---------- Logos strip ---------- */
.trust { padding: 46px 0; border-bottom: 1px solid var(--line); background: #fff; }
.trust p { text-align: center; color: var(--muted); font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 22px; }
.trust-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 40px; align-items: center; }
.trust-row span { font-family: var(--font-head); font-weight: 700; font-size: 1.25rem; color: #c2cbd6; }

/* ---------- CTA band ---------- */
.cta-band { padding: 84px 0; }
.cta-inner {
    background: radial-gradient(700px 300px at 90% 10%, rgba(43, 168, 74, .3), transparent 60%),
                linear-gradient(120deg, var(--navy) 0%, var(--navy-2) 100%);
    border-radius: 24px;
    padding: 64px;
    text-align: center;
    color: #fff;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}
.cta-inner h2 { color: #fff; font-size: clamp(1.8rem, 3.4vw, 2.5rem); margin-bottom: 14px; }
.cta-inner p { color: #b9c6d6; max-width: 560px; margin: 0 auto 30px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
    background: radial-gradient(900px 400px at 85% -20%, rgba(43, 168, 74, .2), transparent 60%),
                linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%);
    color: #fff;
    padding: 74px 0 66px;
    text-align: center;
}
.page-hero .eyebrow { color: var(--green-light); background: rgba(43, 168, 74, .14); border-color: rgba(76, 196, 106, .3); }
.page-hero h1 { color: #fff; font-size: clamp(2rem, 4.4vw, 3rem); margin: 18px 0 12px; }
.page-hero p { color: #b9c6d6; max-width: 620px; margin: 0 auto; font-size: 1.08rem; }
.breadcrumb { margin-top: 20px; font-size: .88rem; color: #9fb0c2; }
.breadcrumb a { color: var(--green-light); }

/* ---------- About ---------- */
.value-tag { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-head); font-weight: 600; color: var(--green-dark); font-size: .92rem; }
.value-tag svg { width: 18px; height: 18px; fill: var(--green); }

/* ---------- Services / Features detail ---------- */
.svc-block { padding: 40px 0; border-top: 1px solid var(--line); }
.svc-block:first-of-type { border-top: 0; }
.big-num { font-family: var(--font-head); font-weight: 800; font-size: 2.6rem; color: var(--green-dark); line-height: 1; }
.feat-list { list-style: none; display: grid; gap: 9px; margin-top: 14px; }
.feat-list li { position: relative; padding-left: 22px; font-size: .92rem; color: var(--body); }
.feat-list li::before {
    content: "";
    position: absolute; left: 0; top: 8px;
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--green);
}

/* ---------- Industries ---------- */
.ind-card { position: relative; overflow: hidden; }
.ind-card .icon-box { background: var(--navy); }
.ind-card .icon-box svg { fill: var(--green-light); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 46px; align-items: start; }
.info-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm); }
.info-item { display: flex; gap: 16px; padding: 16px 0; border-top: 1px solid var(--line); }
.info-item:first-of-type { border-top: 0; }
.info-item .ib { width: 46px; height: 46px; flex: none; border-radius: 12px; background: var(--green-soft); display: grid; place-items: center; }
.info-item .ib svg { width: 22px; height: 22px; fill: var(--green-dark); }
.info-item strong { display: block; font-family: var(--font-head); color: var(--ink); font-size: .96rem; }
.info-item span, .info-item a { color: var(--body); font-size: .95rem; }

.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow); }
.form-card h2 { font-size: 1.5rem; margin-bottom: 6px; }
.form-card .sub { color: var(--muted); margin-bottom: 24px; font-size: .96rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--font-head); font-weight: 500; font-size: .88rem; color: var(--navy-2); margin-bottom: 7px; }
.field label .req { color: var(--green-dark); }
.field input, .field select, .field textarea {
    width: 100%;
    padding: 13px 15px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: .96rem;
    color: var(--ink);
    background: #fff;
    transition: border-color var(--t), box-shadow var(--t);
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 4px rgba(43, 168, 74, .12);
}
.form-note { font-size: .82rem; color: var(--muted); margin-top: 6px; }

/* alerts */
.alert { border-radius: var(--radius-sm); padding: 15px 18px; margin-bottom: 22px; font-size: .95rem; display: flex; gap: 10px; align-items: flex-start; }
.alert svg { width: 20px; height: 20px; flex: none; margin-top: 2px; }
.alert-success { background: var(--green-soft); border: 1px solid rgba(43, 168, 74, .3); color: #17692e; }
.alert-success svg { fill: var(--green-dark); }
.alert-error { background: #fdecec; border: 1px solid #f5c2c2; color: #9b2226; }
.alert-error svg { fill: #c0392b; }

/* faq */
.faq-item { border: 1px solid var(--line); border-radius: var(--radius-sm); margin-bottom: 14px; background: #fff; overflow: hidden; }
.faq-q { width: 100%; text-align: left; background: none; border: 0; padding: 20px 22px; font-family: var(--font-head); font-weight: 600; font-size: 1.02rem; color: var(--ink); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-q svg { width: 20px; height: 20px; fill: var(--green-dark); transition: transform var(--t); flex: none; }
.faq-item.open .faq-q svg { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height var(--t), padding var(--t); padding: 0 22px; }
.faq-item.open .faq-a { max-height: 320px; padding: 0 22px 20px; }
.faq-a p { font-size: .96rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: #b9c6d6; padding-top: 66px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 40px; padding-bottom: 46px; }
.footer-logo { height: 32px; margin-bottom: 18px; filter: brightness(0) invert(1); opacity: .95; }
.footer-about { font-size: .94rem; color: #93a3b6; max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 18px; }
.footer-links, .footer-contact { list-style: none; display: grid; gap: 11px; }
.footer-links a { color: #a7b5c6; font-size: .94rem; }
.footer-links a:hover { color: var(--green-light); }
.footer-contact li { display: flex; gap: 11px; align-items: flex-start; font-size: .94rem; color: #a7b5c6; }
.footer-contact a { color: #a7b5c6; }
.footer-contact a:hover { color: var(--green-light); }
.footer-contact .ic { width: 19px; height: 19px; flex: none; fill: none; stroke: var(--green-light); stroke-width: 1.6; margin-top: 3px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding: 22px 0; }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; }
.footer-bottom p { font-size: .88rem; color: #8494a7; }
.footer-mini a { color: #a7b5c6; }
.footer-mini a:hover { color: var(--green-light); }
.footer-mini span { margin: 0 8px; color: #55677d; }

/* ---------- Back to top ---------- */
.back-to-top {
    position: fixed;
    right: 24px; bottom: 24px;
    width: 46px; height: 46px;
    border-radius: 50%;
    background: var(--green);
    display: grid; place-items: center;
    box-shadow: var(--shadow);
    opacity: 0; visibility: hidden;
    transform: translateY(12px);
    transition: all var(--t);
    z-index: 90;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top svg { width: 22px; height: 22px; fill: #fff; }
.back-to-top:hover { background: var(--green-dark); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
    .hero-inner { grid-template-columns: 1fr; gap: 44px; padding: 66px 0 74px; }
    .hero-visual { max-width: 460px; }
    .split, .split.reverse { grid-template-columns: 1fr; gap: 34px; }
    .split.reverse .split-media { order: 0; }
    .contact-grid { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
    .main-nav {
        position: fixed;
        top: 74px; right: 0;
        width: min(300px, 84vw);
        height: calc(100vh - 74px);
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        padding: 26px 24px;
        box-shadow: var(--shadow-lg);
        transform: translateX(105%);
        transition: transform var(--t);
        border-left: 1px solid var(--line);
    }
    .main-nav.open { transform: translateX(0); }
    .main-nav a { width: 100%; padding: 12px 0; font-size: 1.02rem; }
    .nav-cta { margin-top: 10px; justify-content: center; }
    .nav-toggle { display: flex; }
}

@media (max-width: 560px) {
    .section { padding: 62px 0; }
    .grid-4, .grid-3, .grid-2, .form-row { grid-template-columns: 1fr; }
    .cta-inner { padding: 40px 24px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-bottom-inner { flex-direction: column; text-align: center; }
    .hero-stats { gap: 22px; }
}