/* ==========================================================================
   TPTW Engineering — Design System
   Clean corporate look · navy palette · mobile-first
   ========================================================================== */

:root {
    /* Brand palette */
    --navy:        #0A2540;   /* primary — header, footer, headings */
    --ink:         #0B1B2B;   /* deepest background block */
    --blue:        #1B6FC4;   /* primary accent — links, buttons */
    --blue-bright: #2E86DE;   /* hover / highlight */
    --blue-soft:   #E8F1FB;   /* tint background */
    --mist:        #F4F7FB;   /* light section background */
    --slate:       #33414F;   /* body text */
    --slate-light: #64748B;   /* muted text */
    --line:        #E2E8F0;   /* borders / dividers */
    --white:       #FFFFFF;

    /* Typography */
    --font-body:    'DM Sans', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Arial, sans-serif;
    --font-heading: 'Barlow Condensed', 'DM Sans', 'Segoe UI', sans-serif;

    /* Layout */
    --container: 1180px;
    --radius:   10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(10, 37, 64, .06), 0 1px 2px rgba(10, 37, 64, .04);
    --shadow:    0 8px 24px rgba(10, 37, 64, .08);
    --shadow-lg: 0 20px 48px rgba(10, 37, 64, .14);
    --header-h: 72px;
    --ease: cubic-bezier(.4, 0, .2, 1);
}

/* --------------------------------------------------------------------------
   Reset & base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    color: var(--slate);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

a { color: var(--blue); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--blue-bright); }

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--navy);
    line-height: 1.1;
    margin: 0 0 .4em;
    font-weight: 500;
    letter-spacing: .005em;
}
h1 { font-size: clamp(2.5rem, 6.5vw, 4.25rem); font-weight: 600; }
h2 { font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 600; }
h3 { font-size: 1.5rem; font-weight: 600; }
p  { margin: 0 0 1rem; }

.skip-link {
    position: absolute; left: -999px; top: 0; z-index: 1000;
    background: var(--navy); color: #fff; padding: .75rem 1.25rem; border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; color: #fff; }

/* --------------------------------------------------------------------------
   Layout helpers
   -------------------------------------------------------------------------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 1.25rem; }

.section { padding: clamp(2.75rem, 7vw, 6.5rem) 0; }
.section--mist { background: var(--mist); }
.section--navy { background: var(--navy); color: #cfdbe9; }
.section--navy h2, .section--navy h3 { color: #fff; }

.section-head { max-width: 720px; margin: 0 auto clamp(2rem, 5vw, 3.25rem); text-align: center; }
.section-head.left { margin-inline: 0; text-align: left; }
.eyebrow {
    display: inline-block; font-size: .8rem; font-weight: 600; letter-spacing: .12em;
    text-transform: uppercase; color: var(--blue); margin-bottom: .75rem;
}
.section--navy .eyebrow { color: var(--blue-bright); }
.section-head p { color: var(--slate-light); font-size: 1.05rem; margin-bottom: 0; }
.section--navy .section-head p { color: #a9bcd0; }

.lead { font-size: 1.15rem; color: var(--slate); }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex; align-items: center; gap: .5rem;
    font-family: inherit; font-size: 1rem; font-weight: 600; line-height: 1;
    padding: .9rem 1.6rem; border-radius: var(--radius); border: 1.5px solid transparent;
    cursor: pointer; transition: all .2s var(--ease); white-space: nowrap;
}
.btn-sm { padding: .6rem 1.1rem; font-size: .9rem; }
.btn-primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-primary:hover { background: var(--blue-bright); border-color: var(--blue-bright); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn-ghost:hover { background: rgba(255,255,255,.1); color: #fff; border-color: #fff; }
.btn-outline { background: transparent; color: var(--navy); border-color: var(--line); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.btn-whatsapp { background: #25D366; color: #fff; border-color: #25D366; }
.btn-whatsapp:hover { background: #1fb356; border-color: #1fb356; color: #fff; transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-whatsapp svg { width: 20px; height: 20px; fill: currentColor; }
.btn .arrow { transition: transform .2s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

/* --------------------------------------------------------------------------
   Header / nav
   -------------------------------------------------------------------------- */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: var(--navy);
    transition: box-shadow .3s var(--ease), background .3s var(--ease);
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(10,37,64,.25); background: rgba(10,37,64,.97); backdrop-filter: blur(8px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }

.brand { display: flex; align-items: center; gap: .6rem; }
.brand-logo { height: 40px; width: auto; }
.brand-text { font-family: var(--font-heading); color: #fff; font-weight: 600; font-size: 1.4rem; letter-spacing: .02em; }

.main-nav { display: flex; align-items: center; }
.nav-menu { display: flex; align-items: center; gap: .35rem; list-style: none; margin: 0; padding: 0; }
.nav-menu a {
    display: block; color: #d7e2ef; font-weight: 500; font-size: .95rem;
    padding: .55rem .85rem; border-radius: 8px; transition: color .2s, background .2s;
}
.nav-menu a:hover { color: #fff; background: rgba(255,255,255,.08); }
.nav-menu a.is-active { color: #fff; }
.nav-menu a.is-active:not(.btn) { background: rgba(46,134,222,.22); }
.nav-cta-item { margin-left: .5rem; }
.nav-cta-item .btn { color: #fff; }

.nav-toggle {
    display: none; flex-direction: column; justify-content: center; gap: 5px;
    width: 44px; height: 44px; background: none; border: 0; cursor: pointer; padding: 10px;
}
.nav-toggle span { display: block; height: 2px; width: 100%; background: #fff; border-radius: 2px; transition: transform .3s var(--ease), opacity .3s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        position: fixed; inset: var(--header-h) 0 auto 0;
        flex-direction: column; align-items: stretch; gap: 0;
        background: var(--navy); padding: 1rem 1.25rem 1.5rem;
        border-top: 1px solid rgba(255,255,255,.1);
        box-shadow: 0 20px 40px rgba(0,0,0,.3);
        transform: translateY(-120%); transition: transform .35s var(--ease);
        max-height: calc(100vh - var(--header-h)); overflow-y: auto;
    }
    .nav-menu.open { transform: translateY(0); }
    .nav-menu a { padding: .9rem .5rem; font-size: 1.05rem; border-bottom: 1px solid rgba(255,255,255,.06); }
    .nav-cta-item { margin: 1rem 0 0; }
    .nav-cta-item .btn { width: 100%; justify-content: center; padding: .9rem; }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
    position: relative; color: #fff; overflow: hidden;
    background: linear-gradient(180deg, var(--navy), var(--ink));
}
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; opacity: .78; }
.hero-media::after {
    content: ""; position: absolute; inset: 0;
    background:
        linear-gradient(100deg, rgba(8,23,38,.92) 0%, rgba(9,28,46,.78) 38%, rgba(10,37,64,.35) 68%, rgba(10,37,64,.15) 100%),
        linear-gradient(0deg, rgba(8,23,38,.55) 0%, rgba(8,23,38,0) 40%);
}
.hero-inner { position: relative; padding: clamp(3rem, 10vw, 8rem) 0 clamp(2.5rem, 7vw, 6rem); max-width: 760px; }
.hero h1 { color: #fff; margin-bottom: 1.25rem; font-size: clamp(1.9rem, 4.4vw, 3rem); }
.hero .hero-sub { font-size: clamp(1rem, 1.9vw, 1.18rem); color: #c3d3e6; margin-bottom: 2rem; max-width: 580px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero-badge {
    display: inline-flex; align-items: center; gap: .55rem; margin-bottom: 1.5rem;
    padding: .45rem 1rem; border: 1px solid rgba(255,255,255,.2); border-radius: 100px;
    font-size: .85rem; font-weight: 600; letter-spacing: .04em; color: #cfe0f2;
    background: rgba(255,255,255,.05);
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--blue-bright); box-shadow: 0 0 0 4px rgba(46,134,222,.25); }

/* --------------------------------------------------------------------------
   Stats band
   -------------------------------------------------------------------------- */
.stats-band { position: relative; background: var(--ink); border-top: 1px solid rgba(255,255,255,.06); }
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: rgba(255,255,255,.06); }
.stat { background: var(--ink); padding: 2rem 1.25rem; text-align: center; }
.stat-value { font-family: var(--font-heading); font-size: clamp(2.4rem, 5vw, 3.4rem); font-weight: 600; color: #fff; letter-spacing: 0; line-height: 1; }
.stat-value .suffix { color: var(--blue-bright); }
.stat-label { margin-top: .5rem; font-size: .9rem; color: #92a6bd; letter-spacing: .03em; }

@media (min-width: 720px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 640px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } .grid-4 { grid-template-columns: repeat(4, 1fr); } }

.card {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
    overflow: hidden; transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card-media { aspect-ratio: 16 / 10; overflow: hidden; background: var(--mist); }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.card:hover .card-media img { transform: scale(1.05); }
.card-body { padding: 1.5rem; }
.card-body h3 { margin-bottom: .5rem; }
.card-body p { color: var(--slate-light); font-size: .95rem; margin-bottom: 0; }

/* Icon feature (no image) */
.feature { padding: 1.75rem; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); height: 100%; }
.feature .feature-num { font-size: .85rem; font-weight: 700; color: var(--blue); letter-spacing: .1em; }
.feature h3 { margin: .75rem 0 .5rem; }
.feature p { color: var(--slate-light); font-size: .95rem; margin: 0; }

/* --------------------------------------------------------------------------
   Split / media rows
   -------------------------------------------------------------------------- */
.split { display: grid; gap: clamp(2rem, 5vw, 4rem); align-items: center; grid-template-columns: 1fr; }
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1fr; } .split.reverse .split-media { order: 2; } }
.split-media img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.split-body h2 { margin-bottom: 1rem; }
.split-body p { color: var(--slate-light); }

.checklist { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; gap: .75rem; }
.checklist li { position: relative; padding-left: 2rem; color: var(--slate); }
.checklist li::before {
    content: ""; position: absolute; left: 0; top: .35em; width: 1.15rem; height: 1.15rem;
    background: var(--blue-soft); border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%231B6FC4' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: center;
}

/* --------------------------------------------------------------------------
   Process flow
   -------------------------------------------------------------------------- */
.process { display: flex; flex-wrap: wrap; gap: .75rem; counter-reset: step; }
.process-step {
    flex: 1 1 140px; position: relative; background: #fff; border: 1px solid var(--line);
    border-radius: var(--radius); padding: 1.25rem 1rem; counter-increment: step;
}
.process-step::before {
    content: "0" counter(step); display: block; font-size: .8rem; font-weight: 700;
    color: var(--blue); letter-spacing: .05em; margin-bottom: .35rem;
}
.process-step span { font-weight: 600; color: var(--navy); font-size: .95rem; }

/* Tag pills */
.tags { display: flex; flex-wrap: wrap; gap: .6rem; }
.tag {
    display: inline-block; padding: .55rem 1rem; background: #fff; border: 1px solid var(--line);
    border-radius: 100px; font-size: .9rem; font-weight: 500; color: var(--slate);
    transition: all .2s var(--ease);
}
.tag:hover { border-color: var(--blue); color: var(--blue); background: var(--blue-soft); }

/* --------------------------------------------------------------------------
   Logo wall (customers)
   -------------------------------------------------------------------------- */
.logo-wall { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
@media (min-width: 560px) { .logo-wall { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 860px) { .logo-wall { grid-template-columns: repeat(5, 1fr); } }
.logo-cell {
    background: #fff; aspect-ratio: 3 / 2; display: flex; align-items: center; justify-content: center;
    padding: 1.25rem; transition: background .2s var(--ease);
}
.logo-cell:hover { background: var(--mist); }
.logo-cell img { max-height: 54px; width: auto; object-fit: contain; filter: grayscale(1); opacity: .72; transition: filter .3s var(--ease), opacity .3s var(--ease); }
.logo-cell:hover img { filter: grayscale(0); opacity: 1; }

/* Customer marquee */
.marquee {
    position: relative; overflow: hidden; padding: .5rem 0;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
            mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.marquee + .marquee { margin-top: 1rem; }
.marquee-track { display: flex; width: max-content; will-change: transform; animation: marquee-scroll 48s linear infinite; }
.marquee--reverse .marquee-track { animation-direction: reverse; animation-duration: 56s; }
.marquee-item {
    flex: 0 0 auto; width: 262px; height: 130px;
    display: flex; align-items: center; justify-content: center; padding: 0 2rem;
}
.marquee-item img {
    height: 66px; width: auto; max-width: 210px; object-fit: contain;
    filter: grayscale(1); opacity: .62; transition: filter .3s var(--ease), opacity .3s var(--ease);
}
.marquee-item img:hover { filter: grayscale(0); opacity: 1; }
@keyframes marquee-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } }

/* Cert strip */
.cert-strip { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 1.5rem 2.5rem; }
.cert-strip img { height: 70px; width: auto; cursor: zoom-in; transition: transform .25s var(--ease); }
.cert-strip img:hover { transform: scale(1.06); }

/* Lightbox (click to enlarge) */
.lightbox {
    position: fixed; inset: 0; z-index: 200; display: none;
    align-items: center; justify-content: center; padding: clamp(1.25rem, 5vw, 3rem);
    background: rgba(8, 23, 38, .92); cursor: zoom-out; opacity: 0; transition: opacity .25s var(--ease);
}
.lightbox.open { display: flex; opacity: 1; }
.lightbox-img {
    max-width: min(92vw, 880px); max-height: 86vh; width: auto; height: auto;
    background: #fff; padding: 1.25rem; border-radius: 12px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, .55); cursor: default;
}
.lightbox-close {
    position: absolute; top: 1rem; right: 1.25rem; width: 44px; height: 44px;
    background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25); border-radius: 50%;
    color: #fff; font-size: 1.5rem; line-height: 1; cursor: pointer;
    display: flex; align-items: center; justify-content: center; transition: background .2s var(--ease);
}
.lightbox-close:hover { background: rgba(255,255,255,.25); }

/* --------------------------------------------------------------------------
   CTA band
   -------------------------------------------------------------------------- */
.cta-band { background: linear-gradient(120deg, var(--navy), var(--blue)); color: #fff; border-radius: var(--radius-lg); padding: clamp(2.5rem, 6vw, 4rem); text-align: center; }
.cta-band h2 { color: #fff; margin-bottom: .75rem; }
.cta-band p { color: #d6e4f5; max-width: 560px; margin: 0 auto 1.75rem; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }

/* --------------------------------------------------------------------------
   Page hero (inner pages)
   -------------------------------------------------------------------------- */
.page-hero { background: linear-gradient(180deg, var(--navy), var(--ink)); color: #fff; padding: clamp(3rem, 8vw, 5rem) 0 clamp(2.5rem, 6vw, 4rem); }
.page-hero h1 { color: #fff; margin-bottom: .75rem; }
.page-hero p { color: #b9c9dc; max-width: 640px; font-size: 1.1rem; margin: 0; }
.breadcrumb { font-size: .85rem; color: #8ea3bd; margin-bottom: 1rem; }
.breadcrumb a { color: #b9c9dc; }
.breadcrumb a:hover { color: #fff; }

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.contact-grid { display: grid; gap: 2.5rem; grid-template-columns: 1fr; }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1.1fr .9fr; } }
.info-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1.75rem; box-shadow: var(--shadow-sm); }
.info-card + .info-card { margin-top: 1.25rem; }
.info-card h3 { font-size: 1.1rem; margin-bottom: .75rem; }
.info-card address { font-style: normal; color: var(--slate-light); line-height: 1.6; }
.info-row { display: flex; gap: .75rem; align-items: baseline; margin-top: .5rem; }
.info-row .label { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--slate-light); min-width: 64px; }

.form-field { margin-bottom: 1.25rem; }
.form-field label { display: block; font-weight: 600; font-size: .9rem; color: var(--navy); margin-bottom: .4rem; }
.form-field input, .form-field textarea, .form-field select {
    width: 100%; font-family: inherit; font-size: 1rem; color: var(--slate);
    padding: .8rem 1rem; border: 1.5px solid var(--line); border-radius: var(--radius); background: #fff;
    transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
    outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft);
}
.form-field textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: .85rem; color: var(--slate-light); }

.alert { padding: 1rem 1.25rem; border-radius: var(--radius); margin-bottom: 1.5rem; font-weight: 500; }
.alert-success { background: #e7f6ed; color: #1a7f45; border: 1px solid #b7e3c6; }
.alert-error { background: #fdeaea; color: #b02a2a; border: 1px solid #f4c4c4; }

/* Map embed */
.map-embed { border: 0; width: 100%; height: 320px; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer { background: var(--ink); color: #93a7bd; font-size: .92rem; }
.footer-grid { display: grid; gap: 2.5rem; grid-template-columns: 1fr; padding: clamp(3rem, 6vw, 4.5rem) 1.25rem 2.5rem; }
@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .footer-grid { grid-template-columns: 1.6fr 1fr 1.4fr 1.4fr; } }
.footer-logo { height: 44px; margin-bottom: 1rem; }
.footer-tagline { color: #c3d3e6; font-weight: 600; margin-bottom: 1rem; }
.footer-legal { font-size: .85rem; color: #7b91a9; line-height: 1.5; }
.footer-col h4 { color: #fff; font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 1rem; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.footer-col a { color: #93a7bd; }
.footer-col a:hover { color: #fff; }
.footer-col address { font-style: normal; line-height: 1.6; color: #93a7bd; }
.footer-contact { margin-top: .75rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); }
.footer-bottom-inner { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; justify-content: space-between; padding: 1.25rem; font-size: .82rem; color: #6f849b; }
.footer-bottom p { margin: 0; }

/* --------------------------------------------------------------------------
   Floating WhatsApp button
   -------------------------------------------------------------------------- */
.wa-float {
    position: fixed; z-index: 90;
    right: clamp(1rem, 3vw, 1.75rem); bottom: clamp(1rem, 3vw, 1.75rem);
    width: 58px; height: 58px; border-radius: 50%;
    background: #25D366; color: #fff;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 8px 22px rgba(37, 211, 102, .45), 0 4px 10px rgba(0,0,0,.18);
    transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.wa-float::before {
    content: ""; position: absolute; inset: 0; border-radius: 50%;
    background: #25D366; z-index: -1; animation: wa-pulse 2.4s var(--ease) infinite;
}
.wa-float svg { width: 32px; height: 32px; fill: #fff; }
.wa-float:hover { transform: translateY(-3px) scale(1.05); color: #fff;
    box-shadow: 0 12px 28px rgba(37, 211, 102, .55), 0 6px 14px rgba(0,0,0,.22); }
.wa-float:focus-visible { outline: 3px solid #fff; outline-offset: 3px; }

@keyframes wa-pulse {
    0%   { transform: scale(1);   opacity: .55; }
    70%  { transform: scale(1.5); opacity: 0; }
    100% { transform: scale(1.5); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) { .wa-float::before { animation: none; } }

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

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
    .reveal { opacity: 1; transform: none; }
}

/* --------------------------------------------------------------------------
   Mobile tightening
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {
    .grid { gap: 1rem; }
    .card-media { aspect-ratio: 16 / 9; }
    .card-body { padding: 1.25rem; }
    .section-head { margin-bottom: 1.75rem; }
    .cta-band { padding: 2rem 1.5rem; }
}