/* ============================================================
   LAKMIBEN DOBARIYA — iOS Engineer
   Light editorial theme · Fraunces serif · cool indigo palette
   ============================================================ */

:root {
    --paper: #f3f5fb;
    --paper-2: #e8ecf7;
    --ink: #161a2b;
    --ink-soft: #5c6480;
    --card: #ffffff;
    --line: #d9dff0;
    --terra: #4f46e5;
    --terra-dark: #3b32c4;
    --teal: #0ea5a5;
    --teal-dark: #0b7f7f;
    --gold: #f59e0b;
    --radius: 18px;
    --radius-sm: 12px;
    --shadow: 0 24px 60px rgba(30, 36, 70, 0.14);
    --shadow-sm: 0 10px 28px rgba(30, 36, 70, 0.09);
    --maxw: 1160px;
    --serif: 'Fraunces', Georgia, serif;
    --sans: 'Inter', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }

body {
    font-family: var(--sans);
    background: var(--paper);
    color: var(--ink);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }

.shell { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.block { padding: 120px 0; position: relative; }

.section-no {
    display: inline-block; font-family: var(--sans); font-size: .78rem;
    letter-spacing: .18em; text-transform: uppercase; color: var(--terra);
    font-weight: 600; margin-bottom: 20px;
}
.heading {
    font-family: var(--serif); font-weight: 600;
    font-size: clamp(1.9rem, 4.2vw, 3rem); line-height: 1.1;
    letter-spacing: -0.015em; color: var(--ink);
}
.lead { font-size: 1.12rem; color: var(--ink-soft); max-width: 560px; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: var(--sans); font-weight: 600; font-size: .95rem;
    padding: 14px 28px; border-radius: 999px; cursor: pointer;
    border: 1.5px solid transparent; transition: all .25s ease;
}
.btn i { font-size: .82rem; transition: transform .25s ease; }
.btn.solid { background: var(--ink); color: var(--paper); }
.btn.solid:hover { background: var(--terra); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn.solid:hover i { transform: translateX(4px); }
.btn.line-only { background: transparent; border-color: var(--ink); color: var(--ink); }
.btn.line-only:hover { background: var(--ink); color: var(--paper); transform: translateY(-2px); }
.btn.full { width: 100%; justify-content: center; }

/* ---------- Topbar ---------- */
.topbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 22px 0; transition: all .3s ease;
}
.topbar.scrolled {
    padding: 12px 0; background: rgba(246,241,231,.85);
    backdrop-filter: blur(14px); border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { display: inline-flex; align-items: center; gap: 11px; font-family: var(--serif); font-weight: 600; font-size: 1.05rem; letter-spacing: .01em; }
.logo-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--terra); box-shadow: 0 0 0 4px rgba(79,70,229,.18); }
.links { display: flex; align-items: center; gap: 34px; }
.links a { font-size: .95rem; font-weight: 500; color: var(--ink-soft); position: relative; transition: color .2s; }
.links a:hover, .links a.active { color: var(--ink); }
.links a:not(.link-btn)::after { content: ''; position: absolute; left: 0; bottom: -5px; width: 0; height: 1.5px; background: var(--terra); transition: width .3s; }
.links a:not(.link-btn):hover::after, .links a.active::after { width: 100%; }
.link-btn { padding: 9px 20px; border: 1.5px solid var(--ink); border-radius: 999px; color: var(--ink) !important; font-weight: 600; transition: all .25s; }
.link-btn:hover { background: var(--ink); color: var(--paper) !important; }
.menu-toggle { display: none; flex-direction: column; gap: 6px; background: none; border: 0; cursor: pointer; padding: 6px; }
.menu-toggle span { width: 26px; height: 2px; background: var(--ink); border-radius: 2px; transition: .3s; }
.menu-toggle.active span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { padding: 180px 0 0; }
.kicker { display: inline-flex; align-items: center; gap: 14px; font-size: .85rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); font-weight: 600; margin-bottom: 26px; }
.kicker .line { width: 42px; height: 1.5px; background: var(--terra); display: inline-block; }
.display { font-family: var(--serif); font-weight: 600; font-size: clamp(2.4rem, 6.2vw, 4.6rem); line-height: 1.04; letter-spacing: -0.03em; max-width: 14ch; }
.display em { font-style: italic; color: var(--terra); font-weight: 500; }
.hero-note { font-size: 1.18rem; color: var(--ink-soft); max-width: 560px; margin: 30px 0 36px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-meta { display: flex; align-items: center; gap: 30px; margin-top: 60px; flex-wrap: wrap; }
.hero-meta .num { font-family: var(--serif); font-size: 2rem; font-weight: 600; display: block; color: var(--ink); line-height: 1; }
.hero-meta .lbl { font-size: .85rem; color: var(--ink-soft); }
.hero-meta .div { width: 1px; height: 38px; background: var(--line); }
.hero-strip { margin-top: 90px; display: flex; flex-wrap: wrap; gap: 14px 34px; padding: 26px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.hero-strip span { display: inline-flex; align-items: center; gap: 9px; font-family: var(--serif); font-size: 1.05rem; color: var(--ink-soft); }
.hero-strip i { color: var(--terra); font-size: .95rem; }

/* ---------- Split layout ---------- */
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 60px; align-items: start; }
.split-left .heading { margin-top: 6px; }

/* ---------- Approach ---------- */
.approach { background: var(--paper-2); }
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-top: 36px; }
.pillar i { font-size: 1.4rem; color: var(--teal); margin-bottom: 14px; display: block; }
.pillar h3 { font-family: var(--serif); font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; }
.pillar p { color: var(--ink-soft); font-size: .95rem; }

/* ---------- Block head ---------- */
.block-head { max-width: 640px; margin-bottom: 56px; }

/* ---------- Projects ---------- */
.project-list { border-top: 1px solid var(--line); }
.project { border-bottom: 1px solid var(--line); padding: 34px 0; transition: padding .3s ease; }
.project:hover { padding-left: 16px; }
.project-body { display: flex; gap: 26px; align-items: center; }
.project-index { font-family: var(--serif); font-size: .95rem; color: var(--terra); font-weight: 600; margin-bottom: 14px; letter-spacing: .1em; }
.project-icon { width: 66px; height: 66px; flex-shrink: 0; border-radius: var(--radius-sm); display: grid; place-items: center; font-size: 1.6rem; color: #fff; box-shadow: var(--shadow-sm); }
.c1 { background: linear-gradient(140deg,#4f46e5,#7c74f5); }
.c2 { background: linear-gradient(140deg,#0ea5a5,#2fd0c4); }
.c3 { background: linear-gradient(140deg,#7c3aed,#a66bf0); }
.c4 { background: linear-gradient(140deg,#0284c7,#38b6f0); }
.project h3 { font-family: var(--serif); font-size: 1.5rem; font-weight: 600; margin-bottom: 6px; }
.project p { color: var(--ink-soft); margin-bottom: 14px; max-width: 620px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags span { font-size: .78rem; font-weight: 500; padding: 5px 13px; border-radius: 999px; background: var(--paper-2); border: 1px solid var(--line); color: var(--ink-soft); }

/* ---------- Capabilities ---------- */
.capabilities { background: var(--paper-2); }
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.cap { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 36px 30px; transition: transform .3s ease, box-shadow .3s ease; }
.cap:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.cap-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.cap-top i { font-size: 1.6rem; color: var(--terra); }
.cap-top span { font-family: var(--serif); font-size: 1.1rem; color: var(--line); font-weight: 600; }
.cap h3 { font-family: var(--serif); font-size: 1.35rem; font-weight: 600; margin-bottom: 10px; }
.cap p { color: var(--ink-soft); font-size: .96rem; }

/* ---------- Process ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; counter-reset: step; }
.steps li { position: relative; padding-top: 24px; border-top: 2px solid var(--ink); }
.step-n { font-family: var(--serif); font-size: 1rem; font-weight: 600; color: var(--paper); background: var(--terra); width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; position: absolute; top: -18px; left: 0; }
.steps h3 { font-family: var(--serif); font-size: 1.3rem; font-weight: 600; margin: 8px 0 8px; }
.steps p { color: var(--ink-soft); font-size: .95rem; }

/* ---------- Contact ---------- */
.contact { background: var(--paper-2); }
.contact-lines { margin-top: 32px; display: grid; gap: 18px; }
.contact-lines li { display: flex; gap: 15px; align-items: flex-start; }
.contact-lines i { width: 42px; height: 42px; flex-shrink: 0; border-radius: 11px; display: grid; place-items: center; background: var(--card); border: 1px solid var(--line); color: var(--teal); }
.contact-lines a:hover { color: var(--terra); }
.form-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow-sm); }
.form-card label { display: block; font-size: .85rem; font-weight: 600; color: var(--ink); margin-bottom: 16px; }
.form-card .pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-card input, .form-card textarea {
    width: 100%; margin-top: 7px; font-family: var(--sans); font-size: .95rem;
    padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm);
    background: var(--paper); color: var(--ink); font-weight: 400;
    transition: border-color .25s, box-shadow .25s;
}
.form-card input::placeholder, .form-card textarea::placeholder { color: #a79e92; font-weight: 400; }
.form-card input:focus, .form-card textarea:focus { outline: none; border-color: var(--terra); box-shadow: 0 0 0 3px rgba(79,70,229,.15); }
.form-card textarea { resize: vertical; }
.form-card .btn { margin-top: 6px; }

/* ---------- Footer ---------- */
.foot { background: var(--ink); color: var(--paper); padding: 70px 0 0; }
.foot .logo { color: var(--paper); }
.foot-top { display: grid; grid-template-columns: 1.4fr 2fr; gap: 50px; padding-bottom: 50px; }
.foot-brand p { color: rgba(246,241,231,.6); margin-top: 16px; max-width: 320px; }
.foot-nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.foot-nav h4 { font-family: var(--serif); font-size: 1rem; font-weight: 600; margin-bottom: 16px; color: var(--paper); }
.foot-nav a, .foot-nav span { display: block; color: rgba(246,241,231,.6); font-size: .92rem; margin-bottom: 10px; transition: color .2s; }
.foot-nav a:hover { color: var(--terra); }
.foot-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; border-top: 1px solid rgba(246,241,231,.12); padding: 24px 28px; }
.foot-bottom p { color: rgba(246,241,231,.5); font-size: .88rem; }
.foot-bottom .made { font-family: var(--serif); font-style: italic; }

/* ---------- Legal pages ---------- */
.legal { padding: 170px 0 110px; }
.legal-head { max-width: 760px; margin: 0 auto 44px; text-align: center; }
.legal-head .section-no { display: inline-block; }
.legal-head h1 { font-family: var(--serif); font-weight: 600; font-size: clamp(2.1rem, 5vw, 3.2rem); letter-spacing: -0.02em; }
.legal-body { max-width: 780px; margin: 0 auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 46px; box-shadow: var(--shadow-sm); }
.legal-body h2 { font-family: var(--serif); font-size: 1.4rem; font-weight: 600; margin: 32px 0 12px; color: var(--ink); }
.legal-body h2:first-of-type { margin-top: 8px; }
.legal-body p { color: var(--ink-soft); margin-bottom: 14px; }
.legal-body a { color: var(--terra); font-weight: 500; }
.legal-body a:hover { text-decoration: underline; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
    .split { grid-template-columns: 1fr; gap: 36px; }
    .foot-top { grid-template-columns: 1fr; gap: 36px; }
    .steps { grid-template-columns: 1fr 1fr; gap: 36px 26px; }
}

@media (max-width: 760px) {
    .links {
        position: fixed; inset: 0 0 0 auto; width: min(80%, 320px); height: 100vh;
        flex-direction: column; justify-content: center; gap: 28px;
        background: var(--paper); border-left: 1px solid var(--line);
        transform: translateX(100%); transition: transform .35s ease; padding: 40px;
    }
    .links.open { transform: translateX(0); }
    .menu-toggle { display: flex; z-index: 101; }
    .block { padding: 80px 0; }
    .hero { padding-top: 140px; }
    .pillars { grid-template-columns: 1fr; gap: 26px; }
    .cap-grid { grid-template-columns: 1fr; }
    .project-body { flex-direction: column; align-items: flex-start; gap: 18px; }
}

@media (max-width: 520px) {
    .form-card .pair { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .hero-meta { gap: 20px; }
    .hero-meta .div { display: none; }
    .form-card, .legal-body { padding: 26px; }
    .foot-nav { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .reveal { opacity: 1; transform: none; }
}