/* ============ Smart Apps Studio — style.css ============ */

:root,
[data-theme="dark"] {
  --bg: #070b14;
  --bg-alt: #0b1120;
  --card: #111a2e;
  --card-2: #16213a;
  --line: rgba(148, 163, 184, .14);
  --text: #e6edf7;
  --muted: #94a3b8;
  --brand: #6366f1;
  --brand-2: #22d3ee;
  --grad: linear-gradient(120deg, #6366f1 0%, #8b5cf6 45%, #22d3ee 100%);
  --wa: #25d366;
  --shadow: 0 20px 50px -20px rgba(0, 0, 0, .6);
  --nav-bg: rgba(7, 11, 20, .78);
}

[data-theme="light"] {
  --bg: #f7f9fc;
  --bg-alt: #eef2f9;
  --card: #ffffff;
  --card-2: #f1f5fb;
  --line: rgba(15, 23, 42, .1);
  --text: #0f172a;
  --muted: #5b6678;
  --shadow: 0 20px 45px -25px rgba(15, 23, 42, .35);
  --nav-bg: rgba(247, 249, 252, .85);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: "Hind Siliguri", "Poppins", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 17px;
  overflow-x: hidden;
  transition: background .3s, color .3s;
}
html[lang="en"] body { font-family: "Poppins", "Hind Siliguri", system-ui, sans-serif; font-size: 16px; }
h1, h2, h3, h4, h5 { line-height: 1.3; font-weight: 700; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
[hidden] { display: none !important; }

.container { width: min(1180px, 92%); margin-inline: auto; }
.narrow { width: min(820px, 92%); }
.muted { color: var(--muted); }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .85rem 1.6rem; border-radius: 999px; font-weight: 600;
  transition: transform .2s, box-shadow .2s, background .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 12px 30px -10px rgba(99, 102, 241, .7); }
.btn-ghost { border: 1px solid var(--line); background: var(--card); }
.btn-wa { background: var(--wa); color: #fff; box-shadow: 0 12px 30px -12px rgba(37, 211, 102, .8); }
.btn.block { width: 100%; }
.btn-sm { padding: .55rem 1.1rem; font-size: .9rem; }

/* ---------- offer ---------- */
.offer {
  background: var(--grad); color: #fff; text-align: center;
  padding: .55rem 3rem; font-size: .95rem; font-weight: 500; position: relative;
}
.offer-close { position: absolute; right: 1rem; top: 50%; transform: translateY(-50%); opacity: .8; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--nav-bg); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 1.5rem; height: 68px; }
.logo { display: flex; align-items: center; gap: .6rem; font-family: "Poppins", sans-serif; font-weight: 600; font-size: 1.1rem; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 11px; background: var(--grad); color: #fff;
  display: grid; place-items: center; font-weight: 800; font-size: 1.2rem;
  box-shadow: 0 8px 20px -8px rgba(99, 102, 241, .8);
}
.logo-img {
  width: 44px; height: 44px; border-radius: 12px; object-fit: cover; flex: none;
  box-shadow: 0 6px 18px -6px rgba(34, 196, 204, .55), 0 0 0 1px rgba(255, 255, 255, .08);
}
.footer .logo-img { width: 64px; height: 64px; border-radius: 16px; }
.logo-text b { background: linear-gradient(120deg, #22c8ce 0%, #1fb5b9 50%, #a3e635 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.menu { display: flex; gap: 1.4rem; margin-left: auto; font-size: .97rem; }
.menu a { color: var(--muted); transition: color .2s; }
.menu a:hover { color: var(--text); }
.menu-cta { color: var(--text) !important; font-weight: 600; }
.nav-tools { display: flex; gap: .4rem; }
.tool-btn {
  min-width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--card); font-weight: 600; font-size: .9rem; font-family: "Poppins", sans-serif;
}
.burger { display: none; }

/* ---------- hero ---------- */
.hero { position: relative; padding: 5rem 0 4rem; overflow: hidden; }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .35; pointer-events: none; }
.g1 { width: 480px; height: 480px; background: #6366f1; top: -120px; left: -120px; }
.g2 { width: 420px; height: 420px; background: #22d3ee; bottom: -160px; right: -80px; opacity: .25; }
[data-theme="light"] .hero-glow { opacity: .18; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: center; position: relative; }
.pill {
  display: inline-block; padding: .35rem 1rem; border-radius: 999px; font-size: .9rem;
  background: var(--card); border: 1px solid var(--line); color: var(--muted); margin-bottom: 1.2rem;
}
.hero h1 { font-size: clamp(2.1rem, 5vw, 3.5rem); margin-bottom: 1.2rem; }
.lead { color: var(--muted); font-size: 1.13rem; max-width: 560px; margin-bottom: 2rem; }
.hero-btns { display: flex; flex-wrap: wrap; gap: .8rem; margin-bottom: 1.8rem; }
.trust { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem 1.4rem; color: var(--muted); font-size: .95rem; }

.hero-visual { position: relative; height: 560px; display: grid; place-items: center; }
.phone {
  position: relative; width: 250px; aspect-ratio: 9 / 19; border-radius: 38px;
  background: #0a0f1c; padding: 10px; border: 2px solid #2a3550;
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .7), inset 0 0 0 2px #000;
}
.phone-notch { position: absolute; top: 14px; left: 50%; transform: translateX(-50%); width: 80px; height: 20px; background: #000; border-radius: 12px; z-index: 3; }
.phone-screen { position: relative; width: 100%; height: 100%; border-radius: 30px; overflow: hidden; background: #111; }
.phone-screen img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top; opacity: 0; transition: opacity .8s; }
.phone-screen img.on { opacity: 1; }
.hero-phone { animation: float 6s ease-in-out infinite; z-index: 2; }
@keyframes float { 0%, 100% { transform: translateY(0) rotate(-2deg); } 50% { transform: translateY(-16px) rotate(2deg); } }

.orbit { position: absolute; width: 440px; height: 440px; border: 1px dashed var(--line); border-radius: 50%; animation: spin 40s linear infinite; }
.orb {
  position: absolute; width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center; font-size: 1.6rem;
  background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow);
  animation: spin 40s linear infinite reverse;
}
.o1 { top: -27px; left: calc(50% - 27px); }
.o2 { top: 20%; right: -20px; }
.o3 { bottom: 20%; right: -20px; }
.o4 { bottom: -27px; left: calc(50% - 27px); }
.o5 { bottom: 20%; left: -20px; }
.o6 { top: 20%; left: -20px; }
@keyframes spin { to { transform: rotate(360deg); } }

.float-card {
  position: absolute; z-index: 3; display: flex; align-items: center; gap: .7rem;
  padding: .7rem 1rem; border-radius: 14px; background: var(--card); border: 1px solid var(--line);
  box-shadow: var(--shadow); font-size: .9rem; animation: float 7s ease-in-out infinite;
}
.float-card span { font-size: 1.4rem; }
.float-card small { display: block; color: var(--muted); font-size: .78rem; }
.fc1 { top: 18%; left: 0; }
.fc2 { bottom: 16%; right: 0; animation-delay: -3s; }

/* ---------- stats ---------- */
.stats { padding: 1rem 0 3rem; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 1.4rem; text-align: center; }
.stat b { display: block; font-size: 2.3rem; font-family: "Poppins", "Hind Siliguri", sans-serif; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { color: var(--muted); }

/* ---------- sections ---------- */
.section { padding: 5.5rem 0; }
.section.alt { background: var(--bg-alt); }
.head { text-align: center; max-width: 720px; margin: 0 auto 3rem; }
.eyebrow { display: inline-block; font-size: .85rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--brand-2); margin-bottom: .6rem; }
.head h2, .ready-text h2, .about-text h2, .cta h2 { font-size: clamp(1.7rem, 3.5vw, 2.5rem); margin-bottom: .8rem; }
.head p { color: var(--muted); }

/* ---------- showcase ---------- */
.showcase { margin-bottom: 3.5rem; }
.showcase-phones { display: flex; justify-content: center; align-items: center; gap: 1.5rem; min-height: 460px; perspective: 1200px; }
.showcase-phones .phone { width: 200px; transition: transform .6s, opacity .6s, filter .6s; cursor: pointer; }
.showcase-phones .phone.side { transform: scale(.85) rotateY(var(--ry, 18deg)); opacity: .55; filter: saturate(.7); }
.showcase-phones .phone.center { transform: scale(1.05); z-index: 2; }
.showcase-phones .phone img { opacity: 1; }
.showcase-cap { text-align: center; margin-top: 1rem; color: var(--muted); font-weight: 500; }

/* ---------- filters & projects ---------- */
.filters { display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem; margin-bottom: 2rem; }
.chip {
  padding: .5rem 1.1rem; border-radius: 999px; border: 1px solid var(--line); background: var(--card);
  color: var(--muted); font-size: .93rem; transition: all .2s;
}
.chip:hover { color: var(--text); }
.chip.active { background: var(--grad); color: #fff; border-color: transparent; }

.projects { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 1.3rem; }
.project {
  background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 1.5rem;
  display: flex; flex-direction: column; transition: transform .25s, box-shadow .25s, border-color .25s;
}
.project:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(99, 102, 241, .45); }
.project-top { display: flex; gap: 1rem; align-items: center; margin-bottom: 1rem; }
.app-icon { flex: none; width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; font-size: 1.8rem; box-shadow: 0 10px 22px -10px rgba(0, 0, 0, .6); }
.project h3 { font-size: 1.15rem; font-family: "Poppins", "Hind Siliguri", sans-serif; }
.project .tag { color: var(--muted); font-size: .93rem; }
.badge { display: inline-block; font-size: .75rem; font-weight: 600; padding: .15rem .6rem; border-radius: 999px; margin-bottom: .2rem; }
.badge.live { background: rgba(34, 197, 94, .15); color: #22c55e; }
.badge.client { background: rgba(168, 85, 247, .15); color: #c084fc; }
.badge.portfolio { background: rgba(34, 211, 238, .12); color: #22d3ee; }
[data-theme="light"] .badge.portfolio { color: #0891b2; }
[data-theme="light"] .badge.client { color: #9333ea; }
.project ul { list-style: none; margin: .3rem 0 1rem; display: grid; gap: .3rem; font-size: .95rem; }
.project li::before { content: "✓"; color: var(--brand-2); font-weight: 700; margin-right: .5rem; }
.tech { display: flex; flex-wrap: wrap; gap: .35rem; margin-bottom: 1.2rem; }
.tech span { font-size: .75rem; padding: .15rem .6rem; border-radius: 6px; background: var(--card-2); color: var(--muted); font-family: "Poppins", sans-serif; }
.project-actions { display: flex; gap: .5rem; margin-top: auto; flex-wrap: wrap; }
.project-actions .btn { flex: 1; }

/* ---------- solutions ---------- */
.solutions { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
.solution {
  background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 1.5rem;
  transition: transform .25s, border-color .25s; display: flex; flex-direction: column;
}
.solution:hover { transform: translateY(-4px); border-color: rgba(34, 211, 238, .45); }
.solution .s-icon { font-size: 2.2rem; margin-bottom: .6rem; }
.solution h4 { font-size: 1.08rem; margin-bottom: .3rem; }
.solution p { color: var(--muted); font-size: .93rem; margin-bottom: 1rem; }
.proof { margin-top: auto; font-size: .82rem; color: var(--muted); border-top: 1px dashed var(--line); padding-top: .7rem; }
.proof b { color: var(--text); font-weight: 600; }
.solution .btn { margin-top: .8rem; }

/* ---------- ready-made ---------- */
.ready-box {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 2.5rem; align-items: center;
  background: linear-gradient(135deg, rgba(99, 102, 241, .14), rgba(34, 211, 238, .08));
  border: 1px solid var(--line); border-radius: 28px; padding: 3rem;
}
.ready-text p { color: var(--muted); margin-bottom: 1.2rem; }
.ready-points { list-style: none; display: grid; gap: .4rem; }
.ready-list { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }
.ready-item {
  display: flex; align-items: center; gap: .8rem; padding: .9rem; border-radius: 16px;
  background: var(--card); border: 1px solid var(--line); transition: transform .2s, border-color .2s;
}
.ready-item:hover { transform: translateY(-3px); border-color: var(--wa); }
.ready-item .app-icon { width: 44px; height: 44px; font-size: 1.4rem; border-radius: 12px; }
.ready-item b { display: block; font-size: .95rem; line-height: 1.35; }
.ready-item small { color: var(--wa); font-weight: 600; font-size: .8rem; }

/* ---------- services ---------- */
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.service { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 1.7rem; display: flex; flex-direction: column; }
.service .s-icon { width: 54px; height: 54px; border-radius: 15px; display: grid; place-items: center; font-size: 1.6rem; background: var(--card-2); margin-bottom: 1rem; }
.service h4 { font-size: 1.15rem; margin-bottom: .4rem; }
.service p { color: var(--muted); font-size: .95rem; margin-bottom: 1rem; }
.service a { margin-top: auto; color: var(--brand-2); font-weight: 600; font-size: .93rem; }

/* ---------- packages ---------- */
.packages { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.3rem; align-items: stretch; }
.package {
  position: relative; background: var(--card); border: 1px solid var(--line); border-radius: 24px; padding: 2rem;
  display: flex; flex-direction: column;
}
.package.popular { border: 2px solid transparent; background: linear-gradient(var(--card), var(--card)) padding-box, var(--grad) border-box; transform: translateY(-8px); box-shadow: var(--shadow); }
.package .ribbon { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--grad); color: #fff; font-size: .8rem; font-weight: 600; padding: .25rem .9rem; border-radius: 999px; white-space: nowrap; }
.package h3 { font-size: 1.35rem; }
.package .desc { color: var(--muted); font-size: .93rem; margin-bottom: 1rem; }
.package .price { font-size: 1.25rem; font-weight: 700; margin-bottom: 1.2rem; }
.package .price small { display: block; font-size: .85rem; font-weight: 400; color: var(--muted); }
.package ul { list-style: none; display: grid; gap: .5rem; margin-bottom: 1.6rem; font-size: .96rem; }
.package li::before { content: "✓"; color: var(--wa); font-weight: 700; margin-right: .55rem; }
.package li.bonus { color: var(--brand-2); font-weight: 600; }
.package .btn { margin-top: auto; }

/* ---------- planner ---------- */
.planner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1.5rem; align-items: start; }
.planner-form, .planner-summary { background: var(--card); border: 1px solid var(--line); border-radius: 24px; padding: 2rem; }
.planner-summary { position: sticky; top: 90px; }
.planner h3 { font-size: 1.05rem; margin: 0 0 .9rem; }
.planner-form h3:not(:first-child) { margin-top: 1.8rem; }
.opt-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: .6rem; }
.opt { position: relative; }
.opt input { position: absolute; opacity: 0; pointer-events: none; }
.opt span {
  display: block; padding: .7rem .9rem; border-radius: 12px; border: 1px solid var(--line); background: var(--card-2);
  font-size: .94rem; cursor: pointer; transition: all .2s; user-select: none;
}
.opt span:hover { border-color: rgba(99, 102, 241, .5); }
.opt input:checked + span { border-color: var(--brand); background: rgba(99, 102, 241, .16); font-weight: 600; }
.opt input:focus-visible + span { outline: 2px solid var(--brand-2); }
.input {
  width: 100%; padding: .8rem 1rem; border-radius: 12px; border: 1px solid var(--line); background: var(--card-2);
  color: var(--text); font: inherit; outline: none;
}
.input:focus { border-color: var(--brand); }
#planSummary { font-size: .95rem; margin-bottom: 1rem; min-height: 80px; }
#planSummary p { margin-bottom: .4rem; }
#planSummary .chips { display: flex; flex-wrap: wrap; gap: .35rem; }
#planSummary .chips span { font-size: .8rem; padding: .15rem .6rem; border-radius: 999px; background: var(--card-2); }
.meter { height: 10px; border-radius: 99px; background: var(--card-2); overflow: hidden; }
.meter-bar { height: 100%; width: 0; background: var(--grad); border-radius: 99px; transition: width .4s; }
.meter-label { font-size: .9rem; color: var(--muted); margin: .5rem 0 1.2rem; }
.planner-summary small { display: block; margin-top: .8rem; font-size: .82rem; }

/* ---------- process ---------- */
.steps { list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; counter-reset: s; }
.steps li { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 1.5rem 1.2rem; position: relative; }
.steps b { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: var(--grad); color: #fff; margin-bottom: .8rem; font-size: 1.1rem; }
.steps h4 { margin-bottom: .3rem; }
.steps p { color: var(--muted); font-size: .92rem; }

/* ---------- promises ---------- */
.promises { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
.promise { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 1.7rem; text-align: center; }
.promise span { font-size: 2.4rem; display: block; margin-bottom: .6rem; }
.promise h4 { margin-bottom: .4rem; }
.promise p { color: var(--muted); font-size: .93rem; }

/* ---------- reviews ---------- */
.reviews { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.2rem; }
.review { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 1.6rem; }
.review .stars { color: #fbbf24; margin-bottom: .6rem; }
.review p { margin-bottom: 1rem; }
.review b { display: block; }
.review small { color: var(--muted); }

/* ---------- about ---------- */
.about { display: grid; grid-template-columns: 280px 1fr; gap: 3rem; align-items: center; background: var(--card); border: 1px solid var(--line); border-radius: 28px; padding: 3rem; }
.about-photo {
  width: 280px; height: 280px; border-radius: 28px; background: var(--grad); display: grid; place-items: center; overflow: hidden;
  box-shadow: 0 30px 60px -25px rgba(99, 102, 241, .7);
}
.about-photo span { font-family: "Poppins", sans-serif; font-size: 5rem; font-weight: 800; color: #fff; }
.about-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 18%; }
.about-text .role { color: var(--brand-2); font-weight: 600; margin-bottom: 1rem; }
.about-text p { color: var(--muted); margin-bottom: 1.3rem; }
.skills { display: flex; flex-wrap: wrap; gap: .5rem; }
.skills span { padding: .35rem .9rem; border-radius: 999px; border: 1px solid var(--line); background: var(--card-2); font-size: .85rem; font-family: "Poppins", sans-serif; }

/* ---------- faq ---------- */
.faq { display: grid; gap: .8rem; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 0 1.4rem; transition: border-color .2s; }
.faq details[open] { border-color: rgba(99, 102, 241, .45); }
.faq summary { list-style: none; cursor: pointer; padding: 1.1rem 0; font-weight: 600; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--brand-2); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--muted); padding-bottom: 1.2rem; }

/* ---------- contact ---------- */
.cta {
  text-align: center; border-radius: 30px; padding: 4rem 2rem; position: relative; overflow: hidden;
  background: radial-gradient(circle at 20% 0%, rgba(99, 102, 241, .35), transparent 55%),
              radial-gradient(circle at 90% 100%, rgba(34, 211, 238, .25), transparent 55%), var(--card);
  border: 1px solid var(--line);
}
.cta > p { color: var(--muted); margin-bottom: 2rem; font-size: 1.1rem; }
.contact-btns { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; max-width: 1000px; margin: 0 auto; }
.cbtn {
  display: flex; align-items: center; gap: .8rem; padding: 1rem 1.1rem; border-radius: 18px; text-align: left;
  background: var(--card-2); border: 1px solid var(--line); transition: transform .2s, border-color .2s;
}
.cbtn:hover { transform: translateY(-3px); }
.cbtn .ci { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; font-size: 1.3rem; flex: none; }
.cbtn b { display: block; }
.cbtn small { color: var(--muted); font-size: .82rem; word-break: break-all; }
.cbtn.wa .ci { background: rgba(37, 211, 102, .18); }
.cbtn.wa:hover { border-color: var(--wa); }
.cbtn.call .ci { background: rgba(99, 102, 241, .18); }
.cbtn.call:hover { border-color: var(--brand); }
.cbtn.mail .ci { background: rgba(244, 63, 94, .16); }
.cbtn.mail:hover { border-color: #f43f5e; }
.cbtn.fb .ci { background: rgba(59, 130, 246, .18); }
.cbtn.fb:hover { border-color: #3b82f6; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 3.5rem 0 1.5rem; background: var(--bg-alt); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.footer-grid p { margin-top: .8rem; max-width: 340px; font-size: .95rem; }
.footer h5 { font-size: 1rem; margin-bottom: .8rem; }
.footer ul { list-style: none; display: grid; gap: .35rem; font-size: .93rem; }
.footer ul a { color: var(--muted); }
.footer ul a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .88rem; }

/* ---------- floating whatsapp ---------- */
.wa-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 60; width: 58px; height: 58px; border-radius: 50%;
  background: var(--wa); display: grid; place-items: center; box-shadow: 0 12px 30px -8px rgba(37, 211, 102, .8);
  animation: pulse 2.5s infinite;
}
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, .55); } 70% { box-shadow: 0 0 0 16px rgba(37, 211, 102, 0); } 100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); } }

/* ---------- scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- AI highlight ---------- */
:root { --ai-grad: linear-gradient(120deg, #22d3ee 0%, #34d399 50%, #a3e635 100%); --ai: #34d399; }
.grad-ai { background: var(--ai-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.pill-ai { border-color: rgba(52, 211, 153, .45); color: var(--text); background: linear-gradient(var(--card), var(--card)) padding-box, var(--ai-grad) border-box; border: 1px solid transparent; }
.trust .trust-ai { color: var(--ai); font-weight: 600; }
.menu-ai {
  color: #fff !important; font-weight: 600; padding: .2rem .8rem; border-radius: 999px; background: var(--ai-grad);
  box-shadow: 0 6px 18px -8px rgba(52, 211, 153, .9);
}
.orb-ai { box-shadow: 0 0 0 2px rgba(52, 211, 153, .6), 0 0 26px rgba(52, 211, 153, .55); }
.fc-ai { border-color: rgba(52, 211, 153, .5); }
.btn-ai { background: var(--ai-grad); color: #04201a; font-weight: 700; box-shadow: 0 12px 30px -10px rgba(52, 211, 153, .8); }

.ai-section { padding-top: 2rem; }
.ai-box {
  position: relative; border-radius: 32px; padding: 3rem; overflow: hidden;
  background:
    radial-gradient(circle at 0% 0%, rgba(34, 211, 238, .18), transparent 45%),
    radial-gradient(circle at 100% 100%, rgba(163, 230, 53, .14), transparent 45%),
    linear-gradient(var(--card), var(--card)) padding-box,
    var(--ai-grad) border-box;
  border: 2px solid transparent;
  box-shadow: 0 30px 80px -40px rgba(52, 211, 153, .55);
}
.ai-head { display: grid; grid-template-columns: auto 1fr; gap: 2rem; align-items: center; margin-bottom: 2.2rem; }
.ai-head h2 { font-size: clamp(1.7rem, 3.5vw, 2.5rem); margin-bottom: .7rem; }
.ai-head p { color: var(--muted); font-size: 1.05rem; max-width: 760px; }
.ai-head .eyebrow { color: var(--ai); }
.ai-orb { position: relative; width: 130px; height: 130px; display: grid; place-items: center; }
.ai-orb span {
  position: relative; z-index: 2; width: 92px; height: 92px; border-radius: 50%; display: grid; place-items: center; font-size: 2.8rem;
  background: radial-gradient(circle at 35% 30%, #5eead4, #0f766e 70%); box-shadow: 0 0 40px rgba(52, 211, 153, .7), inset 0 -8px 20px rgba(0, 0, 0, .3);
}
.ai-orb i { position: absolute; inset: 0; border-radius: 50%; border: 2px solid rgba(52, 211, 153, .5); animation: ripple 3s ease-out infinite; }
.ai-orb i:nth-child(3) { animation-delay: 1s; }
.ai-orb i:nth-child(4) { animation-delay: 2s; }
@keyframes ripple { from { transform: scale(.65); opacity: 1; } to { transform: scale(1.25); opacity: 0; } }

.ai-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 2.2rem; }
.ai-card {
  display: block; padding: 1.4rem; border-radius: 20px; background: var(--card-2); border: 1px solid var(--line);
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.ai-card:hover { transform: translateY(-4px); border-color: var(--ai); box-shadow: 0 16px 36px -20px rgba(52, 211, 153, .8); }
.ai-ic { display: grid; place-items: center; width: 50px; height: 50px; border-radius: 14px; font-size: 1.5rem; margin-bottom: .8rem; background: rgba(52, 211, 153, .14); }
.ai-card h4 { font-size: 1.08rem; margin-bottom: .3rem; }
.ai-card p { color: var(--muted); font-size: .93rem; }

.ai-proof h3 { font-size: 1.1rem; margin-bottom: 1rem; }
.ai-proof-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: .8rem; margin-bottom: 2rem; }
.ai-proof-item { display: flex; gap: .9rem; align-items: center; padding: .9rem 1rem; border-radius: 16px; background: var(--card-2); border: 1px solid var(--line); }
a.ai-proof-item[href]:hover { border-color: var(--ai); }
.ai-proof-item .app-icon { width: 46px; height: 46px; font-size: 1.4rem; border-radius: 13px; }
.ai-proof-item b { display: block; font-size: .98rem; }
.ai-proof-item small { color: var(--muted); font-size: .86rem; line-height: 1.5; display: block; }
.ai-cta { display: flex; flex-wrap: wrap; gap: .8rem; justify-content: center; }

.badge.ai { background: rgba(52, 211, 153, .16); color: var(--ai); }
.tech span.t-ai { background: rgba(52, 211, 153, .16); color: var(--ai); font-weight: 600; }
.ai-note { font-size: .85rem; color: var(--ai); margin: -.4rem 0 1rem; font-weight: 500; }
.ai-line { font-size: .88rem !important; color: var(--text) !important; background: rgba(52, 211, 153, .1); border-radius: 10px; padding: .5rem .7rem; margin-bottom: .9rem !important; }
.ai-line b { color: var(--ai); }
.service-ai { background: linear-gradient(var(--card), var(--card)) padding-box, var(--ai-grad) border-box; border: 2px solid transparent; }
.service-ai .s-icon { background: rgba(52, 211, 153, .16); }
.service-ai a { color: var(--ai); }
.package li.ai-li { color: var(--ai); font-weight: 600; }
.package li.ai-li::before { content: ""; margin: 0; }
.plan-ai-title { color: var(--ai); }
.opt-ai .opt input:checked + span { border-color: var(--ai); background: rgba(52, 211, 153, .16); }
#planSummary .chips-ai span { background: rgba(52, 211, 153, .16); color: var(--ai); }
[data-theme="light"] { --ai: #059669; }
[data-theme="light"] .btn-ai { color: #04201a; }

/* ---------- legal pages ---------- */
.legal { padding: 4rem 0 5rem; }
.legal h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: .4rem; }
.legal .updated { color: var(--muted); margin-bottom: 2rem; }
.legal h2 { font-size: 1.25rem; margin: 2rem 0 .6rem; }
.legal p, .legal li { color: var(--muted); }
.legal ul { padding-left: 1.3rem; display: grid; gap: .3rem; }
.legal a { color: var(--brand-2); }
[data-lang] { display: none; }
html[lang="bn"] [data-lang="bn"], html[lang="en"] [data-lang="en"] { display: block; }

/* ---------- responsive ---------- */
@media (max-width: 1060px) {
  .ai-grid { grid-template-columns: repeat(2, 1fr); }
  .solutions { grid-template-columns: repeat(2, 1fr); }
  .promises { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .contact-btns { grid-template-columns: repeat(2, 1fr); }
  .ready-box { grid-template-columns: 1fr; }
}
@media (max-width: 920px) {
  .menu {
    position: fixed; top: 68px; left: 0; right: 0; flex-direction: column; gap: 0; padding: .5rem 4%;
    background: var(--bg); border-bottom: 1px solid var(--line); transform: translateY(-120%); transition: transform .3s;
    z-index: -1; max-height: calc(100vh - 68px); overflow-y: auto;
  }
  .menu.open { transform: none; }
  .menu a { padding: .9rem 0; border-bottom: 1px solid var(--line); }
  .nav-tools { margin-left: auto; }
  .burger { display: block; }
  .hero { padding-top: 3rem; }
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .lead { margin-inline: auto; }
  .hero-btns, .trust { justify-content: center; }
  .hero-visual { height: 480px; }
  .orbit { width: 360px; height: 360px; }
  .services, .packages { grid-template-columns: 1fr; max-width: 520px; margin-inline: auto; }
  .package.popular { transform: none; }
  .planner { grid-template-columns: 1fr; }
  .planner-summary { position: static; }
  .about { grid-template-columns: 1fr; text-align: center; padding: 2rem; }
  .about-photo { margin: 0 auto; width: 200px; height: 200px; }
  .skills { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .section { padding: 4rem 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat b { font-size: 1.9rem; }
  .projects { grid-template-columns: 1fr; }
  .ai-box { padding: 1.6rem; border-radius: 24px; }
  .ai-head { grid-template-columns: 1fr; text-align: center; gap: 1rem; }
  .ai-orb { margin: 0 auto; width: 110px; height: 110px; }
  .ai-grid, .ai-proof-list { grid-template-columns: 1fr; }
  .solutions, .promises, .ready-list, .contact-btns { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .ready-box { padding: 1.6rem; }
  .planner-form, .planner-summary { padding: 1.4rem; }
  .hero-visual { height: 420px; }
  .phone { width: 200px; }
  .orbit { width: 300px; height: 300px; }
  .orb { width: 44px; height: 44px; font-size: 1.3rem; }
  .float-card { font-size: .8rem; padding: .5rem .7rem; }
  .fc1 { left: -2%; } .fc2 { right: -2%; }
  .showcase-phones { min-height: 380px; gap: .5rem; }
  .showcase-phones .phone { width: 170px; }
  .showcase-phones .phone.side { display: none; }
  .logo-text { font-size: .95rem; }
  .offer { font-size: .85rem; padding-right: 2.5rem; padding-left: 1rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}